Tag Archives: cycloidal drive

China Professional Transmission Geared Motor Unit Wp Nmrv Swl Screw Drive Lifts Stepper Cyclo Cycloidal Extruder Helical Plenetary Bevel Worm Speed Variator Gear Reducer Gearbox cvt gearbox

Product Description

 Features
1.Wide transmission rate, strong output torque
2.Compact mechanical structure, light weight, small volume&Good heat-dissipating
3.Smooth operation with lower noise or vibration
4.Easy mounting, free linking, high efficiency
5. PERFECT  SUBSTITUDE FOR  MOTOVARIO AND CHINAMFG PRODUCTS 

Applications
Wide range of application,including light industry of food &beverage, Cement,
package,construction material,chemicals and etc.

Technical data:

Model RV 130 150
Single unit versions NMRV – fitted for motor flanged coupling,
NRV – with input shaft,
NMRV-E motor flanged coupling with worm extension shaft,
NRV-E with double extension worm shaft,
 Power 0.06—-15KW 
 Single unit reduction ratio  1:5 7.5 80 100
 Output torque  2.6—1195N.M
 Worm shaft material  20CrMnTi with carburizing and quenching.The hardness of surface is 56-62HRC with carbonized layer 0.5-0.8mm
 Worm wheel material   worm mandrel is HT250,and worm ring gear,ZQSn10-1,hardness is 60HRC

After-sale service:
One year warranty,subject to proper operation and installation;free technical support all the time.

Application: Motor
Hardness: Hardened
Type: Worm and Wormwheel
Samples:
US$ 30/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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Customized Request

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

cycloidal gearbox

Efficiency of Cycloidal Gearboxes in Power Transmission

Cycloidal gearboxes offer relatively high power transmission efficiency compared to other types of gearboxes. The efficiency of a cycloidal gearbox depends on various factors, including the design, quality of components, lubrication, and load conditions.

Typically, the power transmission efficiency of a cycloidal gearbox ranges from 85% to 95%. However, this can vary based on several factors:

  • Number of Reduction Stages: Multi-stage cycloidal gearboxes may experience slightly lower efficiency due to multiple gear meshing interactions.
  • Quality and Design: Well-designed and precision-manufactured cycloidal gearboxes tend to exhibit higher efficiency.
  • Lubrication: Proper lubrication is crucial for reducing friction and enhancing efficiency. Insufficient or deteriorated lubrication can lead to efficiency losses.
  • Load Conditions: Higher loads and torque levels can lead to higher friction and lower efficiency. Properly matching the gearbox to the application is essential.

Despite minor efficiency losses compared to some other gearbox types, the benefits of compactness, high torque density, and precise motion control often outweigh the efficiency considerations in many applications.

cycloidal gearbox

Patents Associated with Cycloidal Gearbox Designs

Throughout the history of cycloidal gearbox development, several patents have been filed for various designs and applications. Some notable patents include:

  • Harmonic Drive: Ralph B. Heath’s patent for the “Harmonic Drive” (US Patent 2,906,143), filed in 1957, is one of the most famous patents related to cycloidal gear systems. This patent introduced the concept of a high-precision reduction gear mechanism using flexible components.
  • Cycloidal Drive Mechanism: A patent by James Watt for a “Cycloidal Drive Mechanism” (GB Patent 1812), dating back to the 18th century, is often cited as one of the early references to cycloidal motion and gears.
  • Planetary Roller Transmission: US Patent 3,671,927 by C.F. Kafesjian and H. Blumenstock introduced a “Planetary Roller Transmission” in 1972, describing a cycloidal drive mechanism with planetary motion.
  • Cycloidal Speed Reducer: A patent for a “Cycloidal Speed Reducer” (US Patent 5,588,583) was granted to Richard J. Pieprzak in 1996, focusing on an improved design of cycloidal gears for various applications.

These patents represent a small sample of the numerous innovations and designs related to cycloidal gear systems that have been patented over the years. Patents play a significant role in protecting and promoting innovation in the field of gearbox technology.

cycloidal gearbox

Advantages of Using a Cycloidal Gearbox

Cycloidal gearboxes offer several advantages that make them well-suited for various applications:

  • High Torque Density: Cycloidal gearboxes provide a high torque output relative to their size and weight. This makes them ideal for applications where space is limited, and high torque is required.
  • Compact Design: The unique arrangement of cycloidal pins and lobed profiles results in a compact gearbox design. This is advantageous when dealing with constrained installation spaces.
  • Smooth and Precise Motion: Cycloidal motion generates smooth and controlled movement, making these gearboxes suitable for applications requiring accurate positioning, such as robotics and automation.
  • High Shock Load Capacity: The multiple points of contact between the cycloidal pins and the lobes distribute the load, allowing cycloidal gearboxes to handle sudden shocks and overloads effectively.
  • Backlash Elimination: Cycloidal gearboxes exhibit minimal backlash due to the nature of their motion. This is beneficial in applications where precise motion reversal is crucial.
  • High Efficiency: The rolling contact between the pins and lobes contributes to efficient power transmission, resulting in relatively high efficiency levels.
  • Reduced Wear and Noise: The rolling motion in cycloidal gearboxes leads to reduced wear on components, resulting in lower maintenance requirements and quieter operation.
  • Versatility: Cycloidal gearboxes can handle a wide range of ratios and speeds, making them suitable for various industrial and automation applications.

Due to these advantages, cycloidal gearboxes are commonly used in robotics, automation, packaging machinery, conveyors, and other applications where compactness, high torque, and precise motion are critical.

China Professional Transmission Geared Motor Unit Wp Nmrv Swl Screw Drive Lifts Stepper Cyclo Cycloidal Extruder Helical Plenetary Bevel Worm Speed Variator Gear Reducer Gearbox   cvt gearbox	China Professional Transmission Geared Motor Unit Wp Nmrv Swl Screw Drive Lifts Stepper Cyclo Cycloidal Extruder Helical Plenetary Bevel Worm Speed Variator Gear Reducer Gearbox   cvt gearbox
editor by CX 2023-11-30

China Custom 2kw Low Vibration Speed Reducer Used in The Take-and-Place System cycloidal drive principle

Product Description

Product Description

2KW low vibration speed reducer used in the Take-and-place system is a new generation of practical products independently developed by our company:

Low noise: less than 65db.

Low back clearance: up to 3 arc minutes in a CZPT and 5 arc minutes in a double stage.

High torque: higher than the standard planetary reducer torque.

High stability: high strength alloy steel, the whole gear after hardening treatment, not only the surface hard substitution.

High deceleration ratio: Modular design, planetary gearbox can be interlinked.
 

Fubao planetary gear box manufacturer, the 2KW low vibration speed reducer used in the Take-and-place system has the following advantages:

1, compact structure: the characteristics of large torque planetary reducer is to make full use of space, limited space design bearing and gear ratio, so that the product is smaller than the traditional reducer volume can save space.
 

2, high efficiency: the planetary gear group will be in a completely tight meshing state when running, reducing gear collision or local meshing resulting in gear damage. The completely tight meshing characteristic makes the efficiency loss of each gear transmission only 3%. This type of transmission mode can ensure that the kinetic energy input reducer to the mechanical end of the process, still can maintain high transmission efficiency, avoid the internal gear friction, sliding, mechanical loss.
 

3, high axial and radial load capacity: the output shaft of Fubao technology’s high-torque planetary reducer adopts a large-span style, so that the bearing is configured at both ends of the output shaft. The design can effectively disperse the force acting on the output shaft and reduce the load of the bearing. In other words, the product strengthens the bearing and radial load capacity under the same size.
 

4, high strength: large torque planetary reducer gear group is very strong and stable, the thickness of the gear dispersed the load on the gear. The large span bearing group provides a stable structure, and the precision gear group allows the load to be distributed to each planetary gear under tight meshing to withstand the torque load.
 

5, high stability: precision processing to ensure that the product coaxial and concentric, coupled with bearing large span design, so that large torque planetary reducer with excellent stability.

 

Detailed Photos

Product Details

Product Classification

Product Advantage

Compared with other reduction machines, planetary gear reduction machines have high rigidity, high precision (single stage can be achieved within 1 point), high transmission efficiency (single stage in 97-98%), high torque/volume ratio, lifetime maintenance free and other characteristics.

Because of these characteristics, planetary gear reducer is mostly installed on the stepper motor and servo motor, used to reduce speed, increase torque, matching inertia.

Company Profile

Factory Display

FAQ

Q: Speed reducer grease replacement time 
A: When sealing appropriate amount of grease and running reducer, the standard replacement time is 20000 hours according to the aging condition of the grease. In addition, when the grease is stained or used in the surrounding temperature condition (above 40ºC), please check the aging and fouling of the grease, and specify the replacement time.

Q: Delivery time 
A: Fubao has 2000+ production base, daily output of 1000+ units, standard models within 7 days of delivery.

Q: Reducer selection 
A: Fubao provides professional product selection guidance, with higher product matching degree, higher cost performance and higher utilization rate.

Q: Application range of reducer 
A: Fubao has a professional research and development team, complete category design, can match any stepping motor, servo motor, more accurate matching.

Application: Motor, Machinery, Agricultural Machinery, Robotautomatic Equipment
Function: Distribution Power, Change Drive Torque, Speed Changing, Speed Reduction, Lower The Speed and Increase The Torque
Layout: Coaxial
Customization:
Available

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Customized Request

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

helical gearbox

The Advantages of Using a Cyclone Gearbox

Using a cycloidal gearbox to drive an input shaft is a very effective way to reduce the speed of a machine. It does this by reducing the speed of the input shaft by a predetermined ratio. It is capable of very high ratios in relatively small sizes.

Transmission ratio

Whether you’re building a marine propulsion system or a pump for the oil and gas industry, there are certain advantages to using cycloidal gearboxes. Compared to other gearbox types, they’re shorter and have better torque density. These gearboxes also offer the best weight and positioning accuracy.
The basic design of a cycloidal gearbox is similar to that of a planetary gearbox. The main difference is in the profile of the gear teeth.
Cycloid gears have less tooth flank wear and lower Hertzian contact stress. They also have lower friction and torsional stiffness. These advantages make them ideal for applications that involve heavy loads or high-speed drives. They’re also good for high gear ratios.
In a cycloidal gearbox, the input shaft drives an eccentric bearing, while the output shaft drives the cycloidal disc. The cycloidal disc rotates around a fixed ring, and the pins of the ring gear engage the holes in the disc. The pins then drive the output shaft as the disc rotates.
Cycloid gears are ideal for applications that require high gear ratios and low friction. They’re also good for applications that require high torsional stiffness and shock load resistance. They’re also suitable for applications that require a compact design and low backlash.
The transmission ratio of a cycloidal gearbox is determined by the number of lobes on the cycloidal disc. The n=n design of the cycloidal disc moves one lobe per revolution of the input shaft.
Cycloid gears can be manufactured to reduce the gear ratio from 30:1 to 300:1. These gears are suitable for high-end applications, especially in the automation industry. They also offer the best positioning accuracy and backlash. However, they require special manufacturing processes and require non-standard characteristics.

Compressive force

Compared with conventional gearboxes, the cycloidal gearbox has a unique set of kinematics. It has an eccentric bearing in a rotating frame, which drives the cycloidal disc. It is characterized by low backlash and torsional stiffness, which enables geared motion.
In this study, the effects of design parameters were investigated to develop the optimal design of a cycloidal reducer. Three main rolling nodes were studied: a cycloidal disc, an outer race and the input shaft. These were used to analyze the motion related dynamic forces, which can be used to calculate stresses and strains. The gear mesh frequency was calculated using a formula, which incorporated a correction factor for the rotating frame of the outer race.
A three-dimensional finite element analysis (FEA) study was conducted to evaluate the cycloidal disc. The effects of the size of the holes on the disc’s induced stresses were investigated. The study also looked at the torque ripple of a cycloidal drive.
The authors of this study also explored backlash distribution in the output mechanism, which took into account the machining deviations and structure and geometry of the output mechanism. The study also looked at the relative efficiency of a cycloidal reducer, which was based on a single disc cycloidal reducer with a one-tooth difference.
The authors of this study were able to deduce the contact stress of the cycloidal disc, which is calculated using the material-based contact stiffness. This can be used to determine accurate contact stresses in a cycloidal gearbox.
It is important to know the ratios needed for calculation of the bearing rate. This can be calculated using the formula f = k (S x R) where S is the volume of the element, R is the mass, k is the contact stiffness and f is the force vector.helical gearbox

Rotational direction

Unlike the conventional ring gear which has a single axis of rotation, cycloidal gearbox has three rotational axes which are parallel and are located in a single plane. A cycloidal gearbox has excellent torsional stiffness and shock load capacity. It also ensures constant angular velocity, and is used in high-speed gearbox applications.
A cycloidal gearbox consists of an input shaft, a drive member and a cycloidal disc. The disc rotates in one direction, while the input shaft rotates in the opposite direction. The input shaft eccentrically mounts to the drive member. The cycloidal disc meshes with the ring-gear housing, and the rotational motion of the cycloidal disc is transferred to the output shaft.
To calculate the rotational direction of a cycloidal gearbox, the cycloid must have the correct angular orientation and the centerline of the cycloid should be aligned with the center of the output hole. The cycloid’s shortest length should be equal to the radius of the pin circle. The cycloid’s largest radius should be the size of the bearing’s exterior diameter.
A single-stage gear will not have much space to work with, so you’ll need a multistage gear to maximize space. This is also the reason that cycloid gears are usually designed with a shortened cycloid.
To calculate the most efficient tooth profile for a cycloidal gear, a new method was devised. This method uses a mathematical model that uses the cycloid’s rotational direction and a few other geometric parameters. Using a piecewise function related to the distribution of pressure angle, the cycloid’s most efficient profile is determined. It is then superimposed on the theoretical profile. The new method is much more flexible than the conventional method, and can adapt to changing trends of the cycloidal profile.

Design

Several designs of cycloidal gearboxes have been developed. These gearboxes have a large reduction ratio in one stage. They are mainly used for heavy machines. They provide good torsional stiffness and shock load capacity. However, they also have vibrations at high RPM. Several studies have been conducted to find a solution to this problem.
A cycloidal gearbox is designed by calculating the reduction ratio of a mechanism. This ratio is obtained by the size of the input speed. This is then multiplied by the reduction ratio of the gear profile.
The most important factor in the design of a cycloidal gearbox is the load distribution along the width of the gear. Using this as a design criterion, the amplitude of vibration can be reduced. This will ensure that the gearbox is working properly. In order to generate proper mating conditions, the trochoidal profile on the cycloidal disc periphery must be defined accurately.
One of the most common forms of cycloidal gears is circular arc toothing. This is the most common type of toothing used today.
Another form of gear is the hypocycloid. This form requires the rolling circle diameter to be equal to half the base circle diameter. Another special case is the point tooth form. This form is also called clock toothing.
In order to make this gear profile work, the initial point of contact must remain fixed to the edge of the rolling disk. This will generate the hypocycloid curve. The curve is traced from this initial point.
To investigate this gear profile, the authors used a 3D finite element analysis. They used the mathematical model of gear manufacturing that included kinematics parameters, output moment calculations, and machining steps. The resulting design eliminated backlash.helical gearbox

Sizing and selection

Choosing a gearbox can be a complex task. There are many factors that need to be taken into account. You need to determine the type of application, the required speed, the load, and the ratio of the gearbox. By gaining this information, you can find a solution that works best for you.
The first thing you need to do is find the proper size. There are several sizing programs available to help you determine the best gearbox for your application. You can start by drawing a cycloidal gear to help you create the part.
During sizing, it is important to consider the environment. Shock loads, environmental conditions, and ambient temperatures can increase wear on the gear teeth. The temperature also has a significant impact on lubrication viscosities and seal materials.
You also need to consider the input and output speed. This is because the input speed will change your gearbox ratio calculations. If you exceed the input speed, you can damage the seals and cause premature wear on the shaft bearings.
Another important aspect of sizing is the service factor. This factor determines the amount of torque the gearbox can handle. The service factor can be as low as 1.4, which is sufficient for most industrial applications. However, high shock loads and impact loads will require higher service factors. Failure to account for these factors can lead to broken shafts and damaged bearings.
The output style is also important. You need to determine if you want a keyless or keyed hollow bore, as well as if you need an output flange. If you choose a keyless hollow bore, you will need to select a seal material that can withstand the higher temperatures.
China Custom 2kw Low Vibration Speed Reducer Used in The Take-and-Place System   cycloidal drive principleChina Custom 2kw Low Vibration Speed Reducer Used in The Take-and-Place System   cycloidal drive principle
editor by CX 2023-11-23

China best CE; ISO9001 Conical – Cylindrical Gear CZPT Reducer Motor Gmr9000 cycloidal gear drive

Product Description

GRH specialized in providing hydraulic components and solutions for hydraulic systems.
With continuous improvement and enthusiasm over the past 30 years, CZPT has developed into an emerging power in the fluid power industry since it was established in 1986.

GRH (ZheJiang )  – International Sales Office
GRH (ZheJiang )  –  Manufacturing Facility and Domestic Sales Office
 —————————————————————————————————————————————————   

Production description
 

We can produce motor according to your needs !

 About Us

 Application and Partners

Contact us!

Application: Motor, Machinery, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Layout: Expansion
Gear Shape: Conical – Cylindrical Gear
Step: Stepless
Samples:
US$ 1050/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

helical gearbox

A Mathematical Model of a Cycloid Gearbox

Having a gearbox with a cycloidal rotor is an ideal design for a car or any other vehicle, as the cycloidal design can reduce the amplitude of vibration, which is a key component in car performance. Using a cycloidal gearbox is also a great way to reduce the amount of friction between the gears in the gearbox, which can help to reduce noise and wear and tear. A cycloidal gearbox is also a very efficient design for a vehicle that needs to perform under high loads, as the gearbox can be very robust against shock loads.

Basic design principles

cycloidal gearboxes are used for precision gearing applications. Cycloidal drives are compact and robust and offer lower backlash, torsional stiffness and a longer service life. They are also suitable for applications involving heavy loads.
Cycloidal drives are compact in size and provide very high reduction ratios. They are also very robust and can handle shock loads. Cycloidal drives are ideally suited to a wide range of drive technologies. Cycloidal gears have excellent torsional stiffness and can provide a transmission ratio of 300:1. They can also be used in applications where stacking multiple gear stages is not desired.
In order to achieve a high reduction ratio, cycloidal gears must be manufactured extremely accurately. Cycloidal gears have a curved tooth profile that removes shear forces at any point of contact. This provides a positive fit for the gear disc. This profile can be provided on a separate outer bushing or as an internal gear profile insert.
Cycloidal drives are used in marine propulsion systems, where the load plate rotates around the X and Y axis. The plate is anchored by a threaded screw hole arranged 15mm away from the center.
A secondary carrier body is used in a cycloidal gearbox to support the load plate. The secondary carrier body is composed of a mounting carrier body and a secondary carrier disc.

Low friction

Several studies have been conducted to understand the static problems of gears. In this paper, we discuss a mathematical model of a low friction cycloidal gearbox. This model is designed to calculate various parameters that affect the performance of the gearbox during production.
The model is based on a new approach that includes the stiction effect and the nonlinear friction characteristic. These parameters are not covered by the conventional rule of thumb.
The stiction effect is present when the speed direction is changed. During this time, the input torque is required to prevail over the stiction effect to generate movement. The model also enables us to calculate the magnitude of the stiction effect and its breakaway speed.
The most important thing is that the model can be used to improve the dynamic behavior of a controlled system. In this regard, the model has a high degree of accuracy. The model is tested in several quadrants of the gearbox to find the optimum stiction breakaway speed. The simulation results of the model show that this model is effective in predicting the efficiency of a low friction cycloidal gearbox.
In addition to the stiction model, we also studied the efficiency of a low friction cycloidal reducer. The reduction ratio of this gearbox was estimated from the formula. It is found that the ratio approaches negative infinity when the motor torque is close to zero Nm.

Compact

Unlike standard planetary gears, cycloidal gearboxes are compact, low friction and feature virtually zero backlash. They also offer high reduction ratios, high load capacity and high efficiency. These features make them a viable option for a variety of applications.
Cycloid disks are driven by an eccentric input shaft. They are then driven by a stationary ring gear. The ring gear rotates the cycloidal disk at a higher rate. The input shaft rotates nine times to complete a full rotation. The ring gear is designed to correct the dynamic imbalance.
CZPT cycloidal gearheads are designed for precision and stable operation. These reducers are robust and can handle large translocations. They also offer high overload protection. They are suitable for shock wave therapy. CZPT gearheads are also well suited for applications with critical positioning accuracy. They also require low assembly and design costs. They are designed for long service life and low hysteresis loss.
CZPT cycloidal reducers are used in a variety of industrial applications, including CNC machining centers, robot positioners and manipulators. They offer a unique design that can handle high forces on the output axis, and are especially suitable for large translocations. These gearheads are highly efficient, reducing costs, and are available in a variety of sizes. They are ideal for applications that require millimetre accuracy.

High reduction ratios

Compared to other gearboxes, cycloidal gearboxes offer high reduction ratios and small backlash. They are also less expensive. Cycloid gearboxes can be used in a variety of industries. They are suitable for robotic applications. They also have high efficiency and load capacity.
A cycloidal gearbox works by rotating a cycloidal disc. This disc contains holes that are bigger than the pins on the output shaft. When the disc is rotated, the output pins move in the holes to generate a steady output shaft rotation. This type of gearbox does not require stacking stages.
Cycloid gearboxes are usually shorter than planetary gearboxes. Moreover, they are more robust and can transmit higher torques.
Cycloid gearboxes have an eccentric cam that drives the cycloidal disc. The cycloidal disc advances in 360deg/pivot/roller steps. It also rotates in an eccentric pattern. It meshes with the ring-gear housing. It also engages the internal teeth of the ring-gear housing.
The number of lobes on the cycloidal disc is not sufficient to generate a good transmission ratio. In fact, the number of lobes must be less than the number of pins surrounding the cycloidal disc.
The cycloidal disc is rotated by an eccentric cam that extends from the base shaft. The cam also spins inside the cycloidal disc. The eccentric motion of the cam helps the cycloidal disc rotate around the pins of the ring-gear housing.helical gearbox

Reducing amplitude of the vibration

Various approaches to reducing amplitude of the vibration in a cycloidal gearbox have been studied. These approaches are based on the kinematic analysis of gearbox.
A cycloidal gearbox is a gearbox that consists of bearings, gears, and an eccentric bearing that drives a cycloidal disc. This gearbox has a high reduction ratio, which is achieved by a series of output shaft pins that drive the output shaft as the disc rotates.
The test bench used in the studies has four sensors. Each sensor acquires signals with different signal processing techniques. In addition, there is a tachometer that acquires variations in rotational velocity at the input side.
The kinematic study of the robotic gearbox was performed to understand the frequency of vibrations and to determine whether the gearbox is faulty. It was found that the gearbox is in healthy operation when the amplitude of the x and y is low. However, when the amplitude is high, it is indicative of a malfunctioning element.
The frequency analysis of vibration signals is performed for both cyclostationary and noncyclostationary conditions. The frequencies that are selected are those that appear in both types of conditions.

Robust against shock loads

Compared to traditional gearboxes, cycloidal gearboxes have significant benefits when it comes to shock loads. These include high shock-load capacity, high efficiency, reduced cost, lower weight, lower friction, and better positioning accuracy.
Cycloid gears can be used to replace traditional planetary gears in applications where inertia is important, such as the transportation of heavy loads. They have a lighter design and can be manufactured to a more compact size, which helps reduce cost and installation expense. Cycloid gears are also able to provide transmission ratios of up to 300:1 in a small package.
Cycloid gears are also suitable for applications where a long service life is essential. Their radial clamping ring reduces inertia by up to 39%. Cycloid gears have a torsional stiffness that is five times higher than that of conventional planetary gears.
Cycloid gearboxes can provide significant improvements in concrete mixers. They are a highly efficient design, which allows for important innovations. They are also ideal for servo applications, machine tools, and medical technology. They feature user-friendly screw connections, effective corrosion protection, and effective handling.
Cycloid gears are especially useful for applications with critical positioning accuracy. For example, in the control of large parabolic antennas, high shock load capacity is required to maintain accuracy. Cycloid gears can withstand shock loads up to 500% of their rated torque.helical gearbox

Inertial effects

Various studies have been conducted to investigate the static problems of gears. However, there is still a need for a proper model to investigate the dynamic behaviour of a controlled system. For this, a mathematical model of a cycloidal gearbox has been developed. The presented model is a simple model that can be used as the basis for a more complex mechanical model.
The mathematical model is based on the cycloidal gearbox’s mechanical construction and has a nonlinear friction characteristic. The model is able to reproduce the current peaks and breaks at standstill. It also considers the stiction effect. However, it does not cover backlash or torsional stiffness.
This model is used to calculate the torque generating current and the inertia of the motor. These values are then compared with the real system measurement. The results show that the simulation results are very close to the real system measurement.
Several parameters are considered in the model to improve its dynamic behaviour. These parameters are calculated from the harmonic drive system analysis. These are torque-generating current, inertia, and the contact forces of the rotating parts.
The model has a high level of accuracy and can be used for motor control. It is also able to reproduce the dynamic behaviour of a controlled system.
China best CE; ISO9001 Conical - Cylindrical Gear CZPT Reducer Motor Gmr9000   cycloidal gear driveChina best CE; ISO9001 Conical - Cylindrical Gear CZPT Reducer Motor Gmr9000   cycloidal gear drive
editor by CX 2023-11-22

China Standard 90 Degree Bevel Geared Motor cycloidal drive reducer

Product Description

 

Detailed Photos

Product Description

High modular design, biomimetic surface with owned intellectual property right.Adopt German worm hob to process the worm wheel.
With the special gear geometry, it gets high torque, efficiency and long life circle.It can achieve the direct combination for two
sets of gearbox.
Mounting mode: foot mounted, flange mounted, torque arm mounted.Output shaft: CZPT shaft, hollow shaft.

 

Product Parameters

 

Technical data:

Housing material

Cast iron/Ductile iron

Housing hardness

HBS190-240

Gear material

20CrMnTi alloy steel

Surface hardness of gears

HRC58°~62 °

Gear core hardness

HRC33~40

Input / Output shaft material

42CrMo alloy steel

Input / Output shaft hardness

HRC25~30

Machining precision of gears

accurate grinding, 6~5 Grade

Lubricating oil

GB L-CKC220-460, Shell Omala220-460

Heat treatment

tempering, cementiting, quenching, etc.

Efficiency

94%~96% (depends on the transmission stage)

Noise (MAX)

60~68dB

Temp. rise (MAX)

40°C

Temp. rise (Oil)(MAX)

50°C

Vibration

≤20µm

Backlash

≤20Arcmin

Brand of bearings

China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested, SKF, FAG, INA, NSK.

Brand of oil seal

NAK — ZheJiang or other brands requested

 

Our Advantages

 

Packaging & Shipping

 

 

Certifications

Company Profile

Xihu (West Lake) Dis.ng Transmission Equipment Co., Ltd. located HangZhou city, ZHangZhoug, as 1 professional manufacturer
and exporter of cycloidal pin wheel reducer,worm reducer, gear reducer, gearbox , AC motor and relative spare
parts, owns rich experience in this line for many years.

We are 1 direct factory, with advanced production equipment, the strong development team and producing
capacity to offer quality products for customers.

Our products widely served to various industries of Metallurgy, Chemicals, textile,medicine,wooden etc. Main
markets: China, Africa,Australia,Vietnam, Turkey,Japan, Korea, Philippines…

Welcome to ask us any questions, good offer always for you for long term business.

 

FAQ

Q: Are you trading company or manufacturer?
A: We are factory.
 

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock.
 

Q: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.

Q:How to choose a gearbox which meets your requirement?
A:You can refer to our catalogue to choose the gearbox or we can help to choose when you provide
the technical information of required output torque, output speed and motor parameter etc.

Q: What information shall we give before placing a purchase order?
A:a) Type of the gearbox, ratio, input and output type, input flange, mounting position, and motor informationetc.
b) Housing color.
c) Purchase quantity.
d) Other special requirements.

Application: Motor, Machinery, Marine, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: 90 Degree
Layout: Coaxial
Gear Shape: Worm Gear
Step: Single-Step

helical gearbox

A Mathematical Model of a Cycloid Gearbox

Having a gearbox with a cycloidal rotor is an ideal design for a car or any other vehicle, as the cycloidal design can reduce the amplitude of vibration, which is a key component in car performance. Using a cycloidal gearbox is also a great way to reduce the amount of friction between the gears in the gearbox, which can help to reduce noise and wear and tear. A cycloidal gearbox is also a very efficient design for a vehicle that needs to perform under high loads, as the gearbox can be very robust against shock loads.

Basic design principles

cycloidal gearboxes are used for precision gearing applications. Cycloidal drives are compact and robust and offer lower backlash, torsional stiffness and a longer service life. They are also suitable for applications involving heavy loads.
Cycloidal drives are compact in size and provide very high reduction ratios. They are also very robust and can handle shock loads. Cycloidal drives are ideally suited to a wide range of drive technologies. Cycloidal gears have excellent torsional stiffness and can provide a transmission ratio of 300:1. They can also be used in applications where stacking multiple gear stages is not desired.
In order to achieve a high reduction ratio, cycloidal gears must be manufactured extremely accurately. Cycloidal gears have a curved tooth profile that removes shear forces at any point of contact. This provides a positive fit for the gear disc. This profile can be provided on a separate outer bushing or as an internal gear profile insert.
Cycloidal drives are used in marine propulsion systems, where the load plate rotates around the X and Y axis. The plate is anchored by a threaded screw hole arranged 15mm away from the center.
A secondary carrier body is used in a cycloidal gearbox to support the load plate. The secondary carrier body is composed of a mounting carrier body and a secondary carrier disc.

Low friction

Several studies have been conducted to understand the static problems of gears. In this paper, we discuss a mathematical model of a low friction cycloidal gearbox. This model is designed to calculate various parameters that affect the performance of the gearbox during production.
The model is based on a new approach that includes the stiction effect and the nonlinear friction characteristic. These parameters are not covered by the conventional rule of thumb.
The stiction effect is present when the speed direction is changed. During this time, the input torque is required to prevail over the stiction effect to generate movement. The model also enables us to calculate the magnitude of the stiction effect and its breakaway speed.
The most important thing is that the model can be used to improve the dynamic behavior of a controlled system. In this regard, the model has a high degree of accuracy. The model is tested in several quadrants of the gearbox to find the optimum stiction breakaway speed. The simulation results of the model show that this model is effective in predicting the efficiency of a low friction cycloidal gearbox.
In addition to the stiction model, we also studied the efficiency of a low friction cycloidal reducer. The reduction ratio of this gearbox was estimated from the formula. It is found that the ratio approaches negative infinity when the motor torque is close to zero Nm.

Compact

Unlike standard planetary gears, cycloidal gearboxes are compact, low friction and feature virtually zero backlash. They also offer high reduction ratios, high load capacity and high efficiency. These features make them a viable option for a variety of applications.
Cycloid disks are driven by an eccentric input shaft. They are then driven by a stationary ring gear. The ring gear rotates the cycloidal disk at a higher rate. The input shaft rotates nine times to complete a full rotation. The ring gear is designed to correct the dynamic imbalance.
CZPT cycloidal gearheads are designed for precision and stable operation. These reducers are robust and can handle large translocations. They also offer high overload protection. They are suitable for shock wave therapy. CZPT gearheads are also well suited for applications with critical positioning accuracy. They also require low assembly and design costs. They are designed for long service life and low hysteresis loss.
CZPT cycloidal reducers are used in a variety of industrial applications, including CNC machining centers, robot positioners and manipulators. They offer a unique design that can handle high forces on the output axis, and are especially suitable for large translocations. These gearheads are highly efficient, reducing costs, and are available in a variety of sizes. They are ideal for applications that require millimetre accuracy.

High reduction ratios

Compared to other gearboxes, cycloidal gearboxes offer high reduction ratios and small backlash. They are also less expensive. Cycloid gearboxes can be used in a variety of industries. They are suitable for robotic applications. They also have high efficiency and load capacity.
A cycloidal gearbox works by rotating a cycloidal disc. This disc contains holes that are bigger than the pins on the output shaft. When the disc is rotated, the output pins move in the holes to generate a steady output shaft rotation. This type of gearbox does not require stacking stages.
Cycloid gearboxes are usually shorter than planetary gearboxes. Moreover, they are more robust and can transmit higher torques.
Cycloid gearboxes have an eccentric cam that drives the cycloidal disc. The cycloidal disc advances in 360deg/pivot/roller steps. It also rotates in an eccentric pattern. It meshes with the ring-gear housing. It also engages the internal teeth of the ring-gear housing.
The number of lobes on the cycloidal disc is not sufficient to generate a good transmission ratio. In fact, the number of lobes must be less than the number of pins surrounding the cycloidal disc.
The cycloidal disc is rotated by an eccentric cam that extends from the base shaft. The cam also spins inside the cycloidal disc. The eccentric motion of the cam helps the cycloidal disc rotate around the pins of the ring-gear housing.helical gearbox

Reducing amplitude of the vibration

Various approaches to reducing amplitude of the vibration in a cycloidal gearbox have been studied. These approaches are based on the kinematic analysis of gearbox.
A cycloidal gearbox is a gearbox that consists of bearings, gears, and an eccentric bearing that drives a cycloidal disc. This gearbox has a high reduction ratio, which is achieved by a series of output shaft pins that drive the output shaft as the disc rotates.
The test bench used in the studies has four sensors. Each sensor acquires signals with different signal processing techniques. In addition, there is a tachometer that acquires variations in rotational velocity at the input side.
The kinematic study of the robotic gearbox was performed to understand the frequency of vibrations and to determine whether the gearbox is faulty. It was found that the gearbox is in healthy operation when the amplitude of the x and y is low. However, when the amplitude is high, it is indicative of a malfunctioning element.
The frequency analysis of vibration signals is performed for both cyclostationary and noncyclostationary conditions. The frequencies that are selected are those that appear in both types of conditions.

Robust against shock loads

Compared to traditional gearboxes, cycloidal gearboxes have significant benefits when it comes to shock loads. These include high shock-load capacity, high efficiency, reduced cost, lower weight, lower friction, and better positioning accuracy.
Cycloid gears can be used to replace traditional planetary gears in applications where inertia is important, such as the transportation of heavy loads. They have a lighter design and can be manufactured to a more compact size, which helps reduce cost and installation expense. Cycloid gears are also able to provide transmission ratios of up to 300:1 in a small package.
Cycloid gears are also suitable for applications where a long service life is essential. Their radial clamping ring reduces inertia by up to 39%. Cycloid gears have a torsional stiffness that is five times higher than that of conventional planetary gears.
Cycloid gearboxes can provide significant improvements in concrete mixers. They are a highly efficient design, which allows for important innovations. They are also ideal for servo applications, machine tools, and medical technology. They feature user-friendly screw connections, effective corrosion protection, and effective handling.
Cycloid gears are especially useful for applications with critical positioning accuracy. For example, in the control of large parabolic antennas, high shock load capacity is required to maintain accuracy. Cycloid gears can withstand shock loads up to 500% of their rated torque.helical gearbox

Inertial effects

Various studies have been conducted to investigate the static problems of gears. However, there is still a need for a proper model to investigate the dynamic behaviour of a controlled system. For this, a mathematical model of a cycloidal gearbox has been developed. The presented model is a simple model that can be used as the basis for a more complex mechanical model.
The mathematical model is based on the cycloidal gearbox’s mechanical construction and has a nonlinear friction characteristic. The model is able to reproduce the current peaks and breaks at standstill. It also considers the stiction effect. However, it does not cover backlash or torsional stiffness.
This model is used to calculate the torque generating current and the inertia of the motor. These values are then compared with the real system measurement. The results show that the simulation results are very close to the real system measurement.
Several parameters are considered in the model to improve its dynamic behaviour. These parameters are calculated from the harmonic drive system analysis. These are torque-generating current, inertia, and the contact forces of the rotating parts.
The model has a high level of accuracy and can be used for motor control. It is also able to reproduce the dynamic behaviour of a controlled system.
China Standard 90 Degree Bevel Geared Motor   cycloidal drive reducerChina Standard 90 Degree Bevel Geared Motor   cycloidal drive reducer
editor by CX 2023-11-13

China Hot selling Suit Impact and Loading Situations Cycloidal Gearbox Withplanetary Drive for Against Shock comer gearbox

Product Description

Starshine Drive Cycloid Geared Motor Characteristics

1. Features:
1. Smooth running,low noise gear tooth needle more engagement.
2. Cycloidal tooth profile provides a high contact ratio to withstand overload shocks
3. Compact size: single ratio available from 1/9 to 1/87, double stage up from 1/99 to 1/7569 
4. Ideal for dynamic applications: frequent start-stop-reversing duties suits for cyclo speed reducer since inertia is low
5. Reduce maintenance costs: high reliability, long life, minimal maintenance compared to conventional gearboxes
6. Internal parts replaceable with other brands to ensure running.

7. Grease Lubricated & Oil Lubricated Models Available
8. Output Shaft Rotation Direction: Single Reduction: Clockwise Rotation; Double Reduction→ Counter Clockwise Rotation
9. Ambient Conditions: Indoor Installation:10-40 Celsius, Max 85% Humidity, Under 1000m Altitude, Well Ventilated Environment, Free of corrosive,        explosive gases, vapors and dust
10.Slow Speed Shaft Direction: Horizontal, Vertical Up & Down, Universal Direction
11.Mounting Style: Foot Mount, Flange Mount & Vertical F-flange Mount,
12. Input Connection: Cyclo Integral Motor, Hollow Input Shaft Adapter
13. Coupling Method With Driven Machine: Coupling, Gears, Chain Sprocket Or Belt
14. Cycloid reducer Capacity Range: 0.37kW ~ 11kW;

2. Technical parameters

Type Old Type Output Torque Output Shaft Dia.
SXJ00 JXJ00 98N.m φ30
SXJ01 JXJ01 221N.m φ35
SXJ02 JXJ02 448N.m φ45
SXJ03 JXJ03 986N.m φ55
SXJ04 JXJ04 1504N.m φ70
SXJ05 JXJ05 3051N.m φ90
SXJ06 JXJ06 5608N.m φ100

About Us

ZheJiang CHINAMFG Drive Co.,Ltd,the predecessor was a state-owned military mould enterprise, was established in 1965. CHINAMFG specializes in the complete power transmission solution for high-end equipment manufacturing industries based on the aim of “Platform Product, Application Design and Professional Service”.
Starshine have a strong technical force with over 350 employees at present, including over 30 engineering technicians, 30 quality inspectors, covering an area of 80000 square CHINAMFG and kinds of advanced processing machines and testing equipments. We have a good foundation for the industry application development and service of high-end speed reducers & variators owning to the provincial engineering technology research center,the lab of gear speed reducers, and the base of modern R&D.

Our Team

Quality Control
Quality:Insist on Improvement,Strive for Excellence With the development of equipment manufacturing indurstry,customer never satirsfy with the current quality of our products,on the contrary,wcreate the value of quality.
Quality policy:to enhance the overall level in the field of power transmission  
Quality View:Continuous Improvement , pursuit of excellence
Quality Philosophy:Quality creates value

3. Incoming Quality Control
To establish the AQL acceptable level of incoming material control, to provide the material for the whole inspection, sampling, immunity. On the acceptance of qualified products to warehousing, substandard goods to take return, check, rework, rework inspection; responsible for tracking bad, to monitor the supplier to take corrective 
measures to prevent recurrence.

4. Process Quality Control
The manufacturing site of the first examination, inspection and final inspection, sampling according to the requirements of some projects, judging the quality change trend;
 found abnormal phenomenon of manufacturing, and supervise the production department to improve, eliminate the abnormal phenomenon or state.

5. FQC(Final QC)
After the manufacturing department will complete the product, stand in the customer’s position on the finished product quality verification, in order to ensure the quality of 
customer expectations and needs.

6. OQC(Outgoing QC)
After the product sample inspection to determine the qualified, allowing storage, but when the finished product from the warehouse before the formal delivery of the goods, there is a check, this is called the shipment inspection.Check content:In the warehouse storage and transfer status to confirm, while confirming the delivery of the 
product is a product inspection to determine the qualified products.

7. Certification.

Packing

Delivery

 

Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Conical – Cylindrical Gear
Step: Stepless
Type: Cycloid Reducer
Customization:
Available

|

Customized Request

cycloidal gearbox

Calculation of Reduction Ratio in a Cycloidal Gearbox

The reduction ratio in a cycloidal gearbox can be calculated using the following formula:

Reduction Ratio = (Number of Input Pins + Number of Output Pins) / Number of Output Pins

In a cycloidal gearbox, the input pins engage with the lobes of the cam disc, while the output pins are engaged with the cycloidal pins of the output rotor. The reduction ratio determines the relationship between the number of input and output pins engaged at any given time.

For example, if a cycloidal gearbox has 7 input pins and 14 output pins engaged, the reduction ratio would be:

Reduction Ratio = (7 + 14) / 14 = 1.5

This means that for every 1 revolution of the input pins, the output rotor will complete 1.5 revolutions. The reduction ratio is a key parameter that influences the output speed and torque of the cycloidal gearbox.

cycloidal gearbox

Patents Associated with Cycloidal Gearbox Designs

Throughout the history of cycloidal gearbox development, several patents have been filed for various designs and applications. Some notable patents include:

  • Harmonic Drive: Ralph B. Heath’s patent for the “Harmonic Drive” (US Patent 2,906,143), filed in 1957, is one of the most famous patents related to cycloidal gear systems. This patent introduced the concept of a high-precision reduction gear mechanism using flexible components.
  • Cycloidal Drive Mechanism: A patent by James Watt for a “Cycloidal Drive Mechanism” (GB Patent 1812), dating back to the 18th century, is often cited as one of the early references to cycloidal motion and gears.
  • Planetary Roller Transmission: US Patent 3,671,927 by C.F. Kafesjian and H. Blumenstock introduced a “Planetary Roller Transmission” in 1972, describing a cycloidal drive mechanism with planetary motion.
  • Cycloidal Speed Reducer: A patent for a “Cycloidal Speed Reducer” (US Patent 5,588,583) was granted to Richard J. Pieprzak in 1996, focusing on an improved design of cycloidal gears for various applications.

These patents represent a small sample of the numerous innovations and designs related to cycloidal gear systems that have been patented over the years. Patents play a significant role in protecting and promoting innovation in the field of gearbox technology.

cycloidal gearbox

Principle of Cycloidal Gearing

Cycloidal gearing is a mechanism that utilizes the unique shape of cycloidal discs to achieve motion transmission. The principle involves the interaction between two main components: the input disc and the output disc.

The input disc has lobes with pins, while the output disc has lobes with matching holes. The lobes on both discs are not perfectly circular but are shaped in a cycloidal profile. As the input disc rotates, the pins on its lobes engage with the holes in the output disc’s lobes.

As the input disc rotates, the pins move along the cycloidal paths, causing the output disc to rotate. The interaction between the pins and the holes results in smooth and continuous motion transfer. The unique shape of the cycloidal profile ensures that there is always at least one point of contact between the pins and the holes, allowing for efficient torque transmission and reduced wear.

Cycloidal gearing provides advantages such as high torque capacity, compact size, and precision motion. However, due to the complex shape of the components and the continuous engagement, manufacturing and assembly of cycloidal gearboxes can be intricate.

China Hot selling Suit Impact and Loading Situations Cycloidal Gearbox Withplanetary Drive for Against Shock   comer gearbox	China Hot selling Suit Impact and Loading Situations Cycloidal Gearbox Withplanetary Drive for Against Shock   comer gearbox
editor by CX 2023-10-20

China Professional Fubao High Motion Accuracy Steel Reducer and Agricultural Gearbox Wfh Series cycloidal drive dimensions

Product Description

Product Description

FuBao High Motion Accuracy Steel Reducer and Agricultural Gearbox WFH series

WFH series steel reducer and agricultural gearbox for 5 axis machining center developed and manufactured by WEITENSTAN together with German and ZheJiang technicians for many years.

High precision miniature cycloidal gearbox has the characteristics of smaller, ultra-thin, lightweight and high rigidity, anti-overload and high torque. With good deceleration performance, smooth operation and accurate positioning can be achieved. Integrated design, can be directly connected with the motor, to achieve high precision, high rigidity, high durability and other advantages. It is designed for high speed ratio, high geometric accuracy, low motion loss, large torque capacity and high stiffness applications. The compact design (minimum OD ≈40mm, currently the world’s smallest precision cycloidal pin-wheel reducer) allows it to be installed in limited Spaces.

Reducer drawings

 

 

Detailed Photos

 

 

Product Advantage

FuBao High Motion Accuracy Steel Reducer and Agricultural Gearbox WFH series

Advantages:

 

1. Fine precision cycloidal structure

Ultra flat shape is achieved through differential reduction mechanism and thin cross roller bearing, contributing to the compact size of the equipment. The combination of small size and unmatched superior parameters achieves the best combination of performance, price and size (high cost performance).

 

2. Excellent accuracy (transmission loss ≤1 arcmin)

Through the complex meshing of precision cycloid gear and high precision roller pin, higher transmission accuracy is achieved while maintaining small size and high speed ratio.

 

3. High rigidity

Increase the mesh rate to disperse the load, so the rigidity is high.

 

4. High overload capacity

It maintains trouble-free operation under abnormally low noise and vibration conditions while ensuring excellent overturning and torsional stiffness parameters. Integrated axial radial cross roller bearings, high load capacity and overload capacity of the reducer, can ensure users to provide a variety of temperature range of applications.

 

5. The motor installation is simple

Electromechanical integration design, can be directly connected with the motor, any brand of motor can be installed directly, without adding any device.

 

6. Maintenance free

Seal grease to achieve maintenance free. No refueling, no mounting direction restrictions.

 

7. Stable performance

The manufacturing process of high wear-resistant materials and high precision parts has been certified by ISO9000 quality system, which guarantees the reliable operation of the reducer.

 

Product Classification

 

WF Series
High Precision Miniature Reducer

WF series is a high precision micro cycloidal reducer with flange, which has a wide range of applications. This series of reducers includes precise reduction mechanisms and radial – axial roller bearings. The unique design allows load to act directly on the output flange or housing without additional bearings. WF series reducer is characterized by module design, can be installed through the flange motor and reducer, belongs to the motor directly connected reducer.

WFH Series
High Precision Miniature Reducer

WFH series is a hollow form of high precision miniature cycloidal reducer, wire, compressed air pipeline, drive shaft can be through the hollow shaft, non-motor direct connection type reducer. The WFH series is fully sealed, full of grease and includes precise deceleration mechanism and radial – axial roller bearings. The unique design allows load to be acted directly on the output flange or housing without additional bearings.

WR Series
high-precision corner reducer

The WR series is a flange output corner reducer. Like the WF and WFH series, it is a high-precision reducer (backlash less than 1 arc.min), and the level 2 can also be within 1 arc.min, which is higher than other types. Corner type reducer. It can replace the harmonic drive reducer, and its life and rigidity are more than 3 times that of the harmonic.

 

Product Parameters

Size reduction ratio Rated output moment Allowable torque of start and stop Instantaneous allowable moment Rated input speed Maximum input speed Tilt stiffness Torsional stiffness No-load starting torque Transmission accuracy Error accuracy Moment of inertia Weight
  Axis rotation Shell rotation Nm Nm Nm rpm rpm Nm/arcmin Nm/arcmin Nm arcmin arcmin kg-m² kg
WFH07 21 20 15 30 45 3000 6000 6 1.1 0.12 P1≤±1           P2≤±3 P1≤±1           P2≤±3 0.52 0.42
41 40 0.11 0.47
WFH17 21 20 50 100 150 3000 6000 28 6 0.21 P1≤±1           P2≤±3 P1≤±1           P2≤±3 0.88 0.85
41 40 0.18 0.72
61 60 0.14 0.69
WFH25 21 20 110 220 330 3000 5500 131 24 0.47 P1≤±1           P2≤±3 P1≤±1           P2≤±3 6.12 2
31 30 0.41 5.67
41 40 0.38 4.9
51 50 0.35 4.56
81 80 0.31 4.25
WFH32 25 24 190 380 570 3000 4500 240 35 1.15 P1≤±1           P2≤±3 P1≤±1           P2≤±3 11 4.2
31 30 1.1 10.8
51 50 0.77 9.35
81 80 0.74 8.32
101 100 0.6 7.7
WFH40 25 24 320 640 960 3000 4000 377 50 1.35 P1≤±1           P2≤±3 P1≤±1           P2≤±3 13.2 6.6
31 30 1.32 12.96
51 50 0.92 11.22
81 80 0.81 9.84
121 120 0.72 8.4

Installation Instructions

 

Company Profile

 

Q: Speed reducer grease replacement time
A: When sealing appropriate amount of grease and running reducer, the standard replacement time is 20000 hours according to the aging condition of the grease. In addition, when the grease is stained or used in the surrounding temperature condition (above 40ºC), please check the aging and fouling of the grease, and specify the replacement time.

Q: Delivery time
A: Fubao has 2000+ production base, daily output of 1000+ units, standard models within 7 days of delivery.

Q: Reducer selection
A: Fubao provides professional product selection guidance, with higher product matching degree, higher cost performance and higher utilization rate.

Q: Application range of reducer
A: Fubao has a professional research and development team, complete category design, can match any stepping motor, servo motor, more accurate matching.

 

Application: Motor, Machinery, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Customization:
Available

|

Customized Request

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

helical gearbox

How to Use a Cyclone Gearbox

Often, a cycloidal gearbox is used in order to achieve a torque transfer from a motor or pump. This type of gearbox is often a common choice as it has a number of advantages over a regular gearbox. Its main advantage is that it is easy to make, which means that it can be incorporated into a variety of applications. However, if you want to use a cycloidal gearbox, there are a few things that you need to know. These include the operation principle, the structure and the dynamic and inertial effects that come with it.

Dynamic and inertial effects

Several studies have been carried out on the static and dynamic properties of cycloidal gears. The study of these effects is beneficial in assisting optimal design of cycloidal speed reducers.
In this paper, the dynamic and inertial effects of a two-stage cycloidal speed reducer have been investigated using the CZPT program package. Moreover, a new model for cycloidal reducers based on non-linear contact dynamics has been developed. The new model aims to predict several operational conditions.
The normal excitation contact force for the cycloid discs of the first and second stage is very similar. However, the total deformation at the contact point is different. This effect is mainly due to the system’s own oscillations. The cycloid discs of the second stage turn around the ring gear roller with a 180deg angle. This angle is a significant contributor to the torque loads. The total excitation force on the cycloid discs of first and second stage is 1848 N and 2068.7 N, respectively.
In order to analyze the contact stress, different gear profiles were investigated. The mesh density was considered as an important design criterion. It was found that a bigger hole reduces the material content of the cycloidal disc and results in more stresses.
Moreover, it is possible to reduce the contact forces in a more efficient manner by changing the geometric parameters. This can be done by mesh refinement along the disc width. The cycloidal disc has the greatest influence on the output results.
The efficiency of a cycloidal drive increases with the increase in load. The efficiency of a cycloidal reducer also depends on the eccentricity of the input shaft and the cycloidal plate. The efficiency curve for small loads is linear. However, for the larger loads, the efficiency curve becomes more non-linear. This is because the stiffness of the cycloid reducer increases as the load increases.

Structure

Despite the fact that it looks like a complicated engineering puzzle, the construction of a cycloidal gearbox is actually quite simple. The key elements are the base, the load plate and the thrust bearing. All these elements work together to create a stable, compact gearbox.
The base is a circular section with several cylindrical pins around its outer edge. The pins are fixed on a fixed ring that holds them in a circular path. The ring serves as a reference circle. The circle’s size is approximately 5mm in diameter.
The load plate is a series of threaded screw holes. These are arranged 15mm away from the center. These are used to anchor external structures. The load plate must be rotated around the X and Y axis.
The thrust bearing is placed on top of the load plate. The bearing is made of an internal diameter of 35mm and an external diameter of 52mm. It is used to allow rotation around the Z axis.
The cycloidal disc is the centerpiece of the cycloidal gearbox. The disc has holes for the pins that drive the output shaft. The holes are larger than those used in output roller pins. The disc also has a reduced eccentricity.
The pins are attached to the cycloidal disc by rolling pins. The pins are made of a material that provides mechanical support for the drive during high-torque situations. The pins have a 9mm external diameter. The disc has a number of lobes and is rotated by one lobe per shaft revolution.
The cycloidal gearbox also has a top cover that helps keep the components together. The cover has a pocket for tools. The top cover also has threads that screw into the casing.helical gearbox

Operation principle

Among many types of gear transmissions, cycloidal gearboxes are used in heavy machinery and multi-axis robots. They are highly effective, compact and capable of high ratios. In addition, they have an overload capability.
Cycloid disks are driven by eccentric shafts that rotate around fixed ring pins. Roller pins of the pin disc engage with holes in the cycloidal disc. These roller pins drive the pin disc and the pin disc transfers the motion to the output shaft.
Unlike conventional gear drives, cycloidal drives have low backlash and high torsional stiffness. They are ideally suited to heavy loads and all drive technologies. The lower mass and compact design of the cycloidal disk also contributes to its high efficiency and positioning accuracy.
The cycloidal disc plays a central role in the gearbox kinematics. It rotates around a fixed ring in a circle. When the disc is pushed against the ring gear, the pins engage with the disc and the roller pins rotate around the pins. This rotating motion generates vibration, which travels through the driven shafts.
Cycloid discs are typically designed with a short cycloid, so that the eccentricity is minimized. This reduces unbalance forces at high speeds. Ideally, the number of lobes on the cycloid is smaller than the number of surrounding pins. This reduces the amount of Hertzian contact stress.
Unlike planetary gears, cycloidal gears have high accuracy and are capable of withstanding shock loads. They also experience low friction and less wear on tooth flanks. They also have higher efficiency and load capacity.
Cycloid gears are generally more difficult to manufacture than involute gears. Cycloid gears are not suitable for stacking gear stages. They require extreme accuracy for manufacturing. However, their smaller size and low backlash, high torsional stiffness, and low vibration make them ideal for use in heavy machines.

Involute gear tooth profile

Almost all gears are manufactured with an involute gear tooth profile. Cycloid gears are also produced with this profile. Compared with involute gears, cycloid gears are stronger and can transmit more power. However, they can also be more difficult to manufacture. This makes them costlier.
The involute gear tooth profile is a smooth curve. It is derived from the involute curve of a circle. A tangent to the base circle is the normal at any point of an involute.
This curve has properties that allow the involute gear teeth to transfer motion in perpendicular direction. It is also the path traced by the end of the string unwrapping from a cylinder.
An involute profile has the advantage of being easy to manufacture. It also allows for smooth meshing despite misalignment of the centre distance. This profile is also preferred over a cycloid tooth profile, but it is not the best in every regard.
Cycloid gear teeth are also made of two curves. Unlike involute teeth, cycloid gear teeth have a consistent radius. Cycloid gears are less likely to produce noise. But they are also more expensive to manufacture.
Involute teeth are easier to manufacture because they have only one curve. Cycloid gears can also be made with a rack type cutter. This makes them cheaper to manufacture. However, they require an expert design. They can also be manufactured with a gear shaper that includes a pinion cutter.
The tooth profiles that satisfy the law of gear-tooth action are sometimes called conjugate profiles. The involute profile is the most common of these. It allows for constant torque transmission.helical gearbox

Backlash

Typically, cycloidal drives provide a high ratio of transmission with no backlash. This is because the cycloid disc is driven by an eccentric shaft. During rotation, the cycloid disc rotates around a fixed ring. This ring also rotates independently of the center of gravity.
The cycloid disc is typically shortened to reduce the eccentricity. This helps to minimize the unbalance forces that may occur at high speeds. The cycloid also offers a larger gear ratio than traditional gears. This provides a better positional accuracy.
Cycloid drives also have a high torsional stiffness. This provides greater torsional resilience and shock load capabilities. This is important for a number of reasons, such as in heavy-duty applications.
Cycloid drives also have lower mass. These benefits make them ideally suited for all drive technologies. The design also allows for higher torsional stiffness and service life. These drives also have a much smaller profile.
Cycloid drives are also used to reduce speed. Because of the high torsional stiffness of the cycloid, they also have high positioning accuracy.
Cycloid drives are well-suited to a variety of applications, including electric motors, generators, and pump motors. They are also highly resistant to shock loads, which is important in a variety of applications. This design is ideal for applications that require a large transmission ratio in a compact design.
Cycloid drives also have the advantage of minimizing the clearance between the mating components. This helps to eliminate interference and ensure a positive fit. This is particularly important in gearboxes. It also allows for the use of a load cell and potentiometer to determine the backlash of the gearbox.
China Professional Fubao High Motion Accuracy Steel Reducer and Agricultural Gearbox Wfh Series   cycloidal drive dimensionsChina Professional Fubao High Motion Accuracy Steel Reducer and Agricultural Gearbox Wfh Series   cycloidal drive dimensions
editor by CX 2023-10-19

China Good quality Suit Impact and Loading Situations Cycloidal Gearbox Withplanetary Drive for Against Shock bevel gearbox

Product Description

Starshine Drive Cycloid Geared Motor Characteristics

1. Features:
1. Smooth running,low noise gear tooth needle more engagement.
2. Cycloidal tooth profile provides a high contact ratio to withstand overload shocks
3. Compact size: single ratio available from 1/9 to 1/87, double stage up from 1/99 to 1/7569 
4. Ideal for dynamic applications: frequent start-stop-reversing duties suits for cyclo speed reducer since inertia is low
5. Reduce maintenance costs: high reliability, long life, minimal maintenance compared to conventional gearboxes
6. Internal parts replaceable with other brands to ensure running.

7. Grease Lubricated & Oil Lubricated Models Available
8. Output Shaft Rotation Direction: Single Reduction: Clockwise Rotation; Double Reduction→ Counter Clockwise Rotation
9. Ambient Conditions: Indoor Installation:10-40 Celsius, Max 85% Humidity, Under 1000m Altitude, Well Ventilated Environment, Free of corrosive,        explosive gases, vapors and dust
10.Slow Speed Shaft Direction: Horizontal, Vertical Up & Down, Universal Direction
11.Mounting Style: Foot Mount, Flange Mount & Vertical F-flange Mount,
12. Input Connection: Cyclo Integral Motor, Hollow Input Shaft Adapter
13. Coupling Method With Driven Machine: Coupling, Gears, Chain Sprocket Or Belt
14. Cycloid reducer Capacity Range: 0.37kW ~ 11kW;

2. Technical parameters

Type Old Type Output Torque Output Shaft Dia.
SXJ00 JXJ00 98N.m φ30
SXJ01 JXJ01 221N.m φ35
SXJ02 JXJ02 448N.m φ45
SXJ03 JXJ03 986N.m φ55
SXJ04 JXJ04 1504N.m φ70
SXJ05 JXJ05 3051N.m φ90
SXJ06 JXJ06 5608N.m φ100

About Us

ZheJiang CHINAMFG Drive Co.,Ltd,the predecessor was a state-owned military mould enterprise, was established in 1965. CHINAMFG specializes in the complete power transmission solution for high-end equipment manufacturing industries based on the aim of “Platform Product, Application Design and Professional Service”.
Starshine have a strong technical force with over 350 employees at present, including over 30 engineering technicians, 30 quality inspectors, covering an area of 80000 square CHINAMFG and kinds of advanced processing machines and testing equipments. We have a good foundation for the industry application development and service of high-end speed reducers & variators owning to the provincial engineering technology research center,the lab of gear speed reducers, and the base of modern R&D.

Our Team

Quality Control
Quality:Insist on Improvement,Strive for Excellence With the development of equipment manufacturing indurstry,customer never satirsfy with the current quality of our products,on the contrary,wcreate the value of quality.
Quality policy:to enhance the overall level in the field of power transmission  
Quality View:Continuous Improvement , pursuit of excellence
Quality Philosophy:Quality creates value

3. Incoming Quality Control
To establish the AQL acceptable level of incoming material control, to provide the material for the whole inspection, sampling, immunity. On the acceptance of qualified products to warehousing, substandard goods to take return, check, rework, rework inspection; responsible for tracking bad, to monitor the supplier to take corrective 
measures to prevent recurrence.

4. Process Quality Control
The manufacturing site of the first examination, inspection and final inspection, sampling according to the requirements of some projects, judging the quality change trend;
 found abnormal phenomenon of manufacturing, and supervise the production department to improve, eliminate the abnormal phenomenon or state.

5. FQC(Final QC)
After the manufacturing department will complete the product, stand in the customer’s position on the finished product quality verification, in order to ensure the quality of 
customer expectations and needs.

6. OQC(Outgoing QC)
After the product sample inspection to determine the qualified, allowing storage, but when the finished product from the warehouse before the formal delivery of the goods, there is a check, this is called the shipment inspection.Check content:In the warehouse storage and transfer status to confirm, while confirming the delivery of the 
product is a product inspection to determine the qualified products.

7. Certification.

Packing

Delivery

 

Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Conical – Cylindrical Gear
Step: Stepless
Type: Cycloid Reducer
Customization:
Available

|

Customized Request

cycloidal gearbox

Distinguishing Features of Cycloidal Gearboxes

Cycloidal gearboxes, also known as cycloidal drives or cycloidal reducers, possess distinct characteristics that set them apart from other types of gearboxes:

  • Principle of Operation: Cycloidal gearboxes utilize the principle of cycloidal motion, where input shaft movement is transformed into eccentric motion of the cycloidal disc. This unique mechanism results in smooth and consistent output motion.
  • Compactness: Cycloidal gearboxes are renowned for their compact size and high torque density. The concentric design of the components contributes to their ability to transmit substantial torque in a relatively small package.
  • Tooth Profile: Cycloidal gearboxes employ specialized cycloidal teeth, which involve both pinwheel and roller gears. This distinctive tooth profile contributes to the characteristic smooth and vibration-free operation.
  • Reduction Mechanism: They often employ multi-lobed cam gears that interact with the pins on the cycloidal disc, resulting in multiple gear engagements per revolution and improved load distribution.
  • Motion Control: Cycloidal gearboxes offer high positional accuracy and motion control due to the eccentric motion of the disc, making them suitable for robotics, automation, and precision applications.
  • Backlash: They typically exhibit low backlash due to the nature of the engagement mechanism, making them advantageous for applications requiring precise and reversible motion.
  • Applications: Cycloidal gearboxes are commonly used in various industries, including robotics, packaging, material handling, printing, and more, where their compactness, precision, and efficiency are valued.

These distinguishing features contribute to the unique capabilities and benefits of cycloidal gearboxes in specific applications.

cycloidal gearbox

History of Cycloidal Gear System Development

The history of cycloidal gear systems dates back to ancient times, with various forms of non-circular gears being used for specialized applications. The concept of the cycloidal gear system as we know it today, however, has evolved over centuries of engineering and innovation:

  • Ancient Roots: The concept of using non-circular gears can be traced back to ancient civilizations, where devices like the “Antikythera Mechanism” (c. 150-100 BC) employed non-circular gear arrangements.
  • Cam Mechanisms: During the Renaissance, engineers and inventors like Leonardo da Vinci explored mechanisms involving cams and followers, which are precursors to modern cycloidal gears.
  • Cycloidal Motion Studies: In the 19th century, engineers and mathematicians like Franz Reuleaux and Robert Willis studied and developed mechanisms based on the principles of cycloidal motion.
  • Early Cycloidal Gearboxes: The development of cycloidal gear systems gained momentum in the late 19th and early 20th centuries, with inventors like Emile Alluard and Louis André creating early forms of cycloidal gear mechanisms and gearboxes.
  • Cycloidal Drive: The term “cycloidal drive” was coined by James Watt in the 18th century, referring to mechanisms that produce a motion resembling a rolling circle.
  • Modern Cycloidal Gearboxes: The development of modern cycloidal gearboxes was further advanced by engineers like Ralph B. Heath, who patented the “Harmonic Drive” in the 1950s. This invention marked a significant step in the advancement and commercialization of precision cycloidal gear systems.
  • Advancements and Applications: Over the decades, cycloidal gear systems have found applications in robotics, aerospace, automation, and other fields that require compactness, precision, and high torque capabilities.

The history of cycloidal gear system development reflects the contributions of many engineers and inventors who have refined and advanced the technology over time. Today, cycloidal gearboxes continue to play a crucial role in various industries and applications.

cycloidal gearbox

How Does a Cycloidal Gearbox Work?

A cycloidal gearbox operates on the principle of cycloidal motion to transmit rotational power. It consists of a set of components that work together to achieve smooth and efficient motion transmission:

  1. High-Speed Input Shaft: The gearbox is connected to a high-speed input shaft, typically driven by an electric motor or another power source.
  2. Cycloidal Pins or Rollers: Surrounding the input shaft are a series of cycloidal pins or rollers arranged in a circular pattern. These pins interact with the lobed profiles of the outer stationary ring.
  3. Outer Stationary Ring: The outer ring remains stationary and contains lobed profiles. The lobes are designed in a way that allows them to engage with the cycloidal pins as they rotate.
  4. Motion Transmission: As the input shaft rotates, it causes the cycloidal pins to move along the circular path. The interaction between the cycloidal pins and the lobed profiles of the outer ring results in a unique motion known as epicycloidal or hypocycloidal motion.

This motion generates torque that is transferred from the input shaft to the output shaft of the gearbox. The main advantage of a cycloidal gearbox is its ability to provide high torque output in a compact design. The multiple points of contact between the pins and the lobes distribute the load, enhancing the gearbox’s load-carrying capacity.

Cycloidal gearboxes are known for their smooth and controlled motion, making them suitable for applications requiring precise positioning and high torque capabilities, such as robotics, automation, and industrial machinery.

China Good quality Suit Impact and Loading Situations Cycloidal Gearbox Withplanetary Drive for Against Shock   bevel gearbox	China Good quality Suit Impact and Loading Situations Cycloidal Gearbox Withplanetary Drive for Against Shock   bevel gearbox
editor by CX 2023-10-18

China Professional Suit Impact and Loading Situations Cycloidal Gearbox Withplanetary Drive for Against Shock supplier

Product Description

Starshine Drive Cycloid Geared Motor Characteristics

1. Features:
1. Smooth running,low noise gear tooth needle more engagement.
2. Cycloidal tooth profile provides a high contact ratio to withstand overload shocks
3. Compact size: single ratio available from 1/9 to 1/87, double stage up from 1/99 to 1/7569 
4. Ideal for dynamic applications: frequent start-stop-reversing duties suits for cyclo speed reducer since inertia is low
5. Reduce maintenance costs: high reliability, long life, minimal maintenance compared to conventional gearboxes
6. Internal parts replaceable with other brands to ensure running.

7. Grease Lubricated & Oil Lubricated Models Available
8. Output Shaft Rotation Direction: Single Reduction: Clockwise Rotation; Double Reduction→ Counter Clockwise Rotation
9. Ambient Conditions: Indoor Installation:10-40 Celsius, Max 85% Humidity, Under 1000m Altitude, Well Ventilated Environment, Free of corrosive,        explosive gases, vapors and dust
10.Slow Speed Shaft Direction: Horizontal, Vertical Up & Down, Universal Direction
11.Mounting Style: Foot Mount, Flange Mount & Vertical F-flange Mount,
12. Input Connection: Cyclo Integral Motor, Hollow Input Shaft Adapter
13. Coupling Method With Driven Machine: Coupling, Gears, Chain Sprocket Or Belt
14. Cycloid reducer Capacity Range: 0.37kW ~ 11kW;

2. Technical parameters

Type Old Type Output Torque Output Shaft Dia.
SXJ00 JXJ00 98N.m φ30
SXJ01 JXJ01 221N.m φ35
SXJ02 JXJ02 448N.m φ45
SXJ03 JXJ03 986N.m φ55
SXJ04 JXJ04 1504N.m φ70
SXJ05 JXJ05 3051N.m φ90
SXJ06 JXJ06 5608N.m φ100

About Us

ZheJiang CHINAMFG Drive Co.,Ltd,the predecessor was a state-owned military mould enterprise, was established in 1965. CHINAMFG specializes in the complete power transmission solution for high-end equipment manufacturing industries based on the aim of “Platform Product, Application Design and Professional Service”.
Starshine have a strong technical force with over 350 employees at present, including over 30 engineering technicians, 30 quality inspectors, covering an area of 80000 square CHINAMFG and kinds of advanced processing machines and testing equipments. We have a good foundation for the industry application development and service of high-end speed reducers & variators owning to the provincial engineering technology research center,the lab of gear speed reducers, and the base of modern R&D.

Our Team

Quality Control
Quality:Insist on Improvement,Strive for Excellence With the development of equipment manufacturing indurstry,customer never satirsfy with the current quality of our products,on the contrary,wcreate the value of quality.
Quality policy:to enhance the overall level in the field of power transmission  
Quality View:Continuous Improvement , pursuit of excellence
Quality Philosophy:Quality creates value

3. Incoming Quality Control
To establish the AQL acceptable level of incoming material control, to provide the material for the whole inspection, sampling, immunity. On the acceptance of qualified products to warehousing, substandard goods to take return, check, rework, rework inspection; responsible for tracking bad, to monitor the supplier to take corrective 
measures to prevent recurrence.

4. Process Quality Control
The manufacturing site of the first examination, inspection and final inspection, sampling according to the requirements of some projects, judging the quality change trend;
 found abnormal phenomenon of manufacturing, and supervise the production department to improve, eliminate the abnormal phenomenon or state.

5. FQC(Final QC)
After the manufacturing department will complete the product, stand in the customer’s position on the finished product quality verification, in order to ensure the quality of 
customer expectations and needs.

6. OQC(Outgoing QC)
After the product sample inspection to determine the qualified, allowing storage, but when the finished product from the warehouse before the formal delivery of the goods, there is a check, this is called the shipment inspection.Check content:In the warehouse storage and transfer status to confirm, while confirming the delivery of the 
product is a product inspection to determine the qualified products.

7. Certification.

Packing

Delivery

 

Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Conical – Cylindrical Gear
Step: Stepless
Type: Cycloid Reducer
Customization:
Available

|

Customized Request

cycloidal gearbox

Variations in Cycloidal Gearbox Design

Cycloidal gearboxes come in various designs and configurations to cater to different application requirements. Some common variations include:

  • Single-Stage vs. Multi-Stage: Cycloidal gearboxes can be designed as single-stage or multi-stage systems. Single-stage designs offer a lower gear ratio and are suitable for applications with moderate torque requirements. Multi-stage designs provide higher gear ratios and are used for applications demanding higher torque output.
  • Input and Output Arrangements: Cycloidal gearboxes can have various input and output arrangements, including coaxial, inline, and right-angle configurations. These arrangements determine the orientation of the input and output shafts relative to each other.
  • Size and Torque Capacity: Different sizes of cycloidal gearboxes are available to accommodate a wide range of torque and power requirements. Smaller sizes are suitable for applications where space is limited, while larger sizes handle higher torque loads.
  • Mounting Options: Cycloidal gearboxes offer flexibility in mounting options, including base or flange mounting. This allows for easy integration into different types of machinery and equipment.
  • Material Selection: Depending on the application’s demands, cycloidal gearboxes can be constructed using various materials, such as steel, aluminum, and alloys. Material selection affects the gearbox’s durability and performance in different environments.
  • Backlash Reduction Mechanisms: Some cycloidal gearboxes feature enhanced backlash reduction mechanisms to further improve precision and accuracy in motion control applications.

These variations in design allow cycloidal gearboxes to be tailored to specific application requirements, making them versatile solutions for a wide range of industries and machinery.

cycloidal gearbox

Assembling and Disassembling a Cycloidal Gearbox

Assembling and disassembling a cycloidal gearbox requires careful attention to detail and precision. The process can vary depending on the specific design of the gearbox, but the general steps involve:

  1. Preparation: Gather all the necessary tools, components, and safety equipment for the assembly or disassembly process. Ensure a clean and organized workspace.
  2. Disassembly: To disassemble a cycloidal gearbox, follow these steps:
    • Remove any external components or covers to access the gearbox internals.
    • Identify and mark the positions of all components for reassembly.
    • Release any locking mechanisms or fasteners that hold the gearbox components together.
    • Remove each component carefully, starting from the outermost layers and moving inward.
  3. Cleaning and Inspection: Clean all components thoroughly using appropriate cleaning agents. Inspect each part for wear, damage, or any signs of degradation. Replace any components that are worn out or damaged.
  4. Reassembly: To assemble the cycloidal gearbox, follow these steps:
    • Begin by assembling the internal components in the reverse order of disassembly.
    • Apply lubrication to the gears and other moving parts as recommended by the manufacturer.
    • Follow the markings made during disassembly to ensure correct positioning and alignment of components.
    • Gradually secure each component with the appropriate fasteners, ensuring proper torque settings.
    • Reattach any external covers or components that were removed earlier.
  5. Testing: After reassembly, perform functional tests to ensure that the gearbox operates smoothly and without any issues. Check for any abnormal noises, vibrations, or irregular movements.
  6. Final Checks: Double-check all fasteners, connections, and alignments. Verify that the gearbox functions as intended and meets performance specifications.
  7. Documentation: Keep detailed records of the assembly process, including torque settings, markings, and any adjustments made during reassembly. This documentation will be useful for future maintenance or repairs.

It’s important to note that cycloidal gearboxes can have complex designs, and the exact procedure for assembly and disassembly may vary. Always refer to the manufacturer’s documentation and guidelines for specific instructions related to your gearbox model.

cycloidal gearbox

How Does a Cycloidal Gearbox Work?

A cycloidal gearbox operates on the principle of cycloidal motion to transmit rotational power. It consists of a set of components that work together to achieve smooth and efficient motion transmission:

  1. High-Speed Input Shaft: The gearbox is connected to a high-speed input shaft, typically driven by an electric motor or another power source.
  2. Cycloidal Pins or Rollers: Surrounding the input shaft are a series of cycloidal pins or rollers arranged in a circular pattern. These pins interact with the lobed profiles of the outer stationary ring.
  3. Outer Stationary Ring: The outer ring remains stationary and contains lobed profiles. The lobes are designed in a way that allows them to engage with the cycloidal pins as they rotate.
  4. Motion Transmission: As the input shaft rotates, it causes the cycloidal pins to move along the circular path. The interaction between the cycloidal pins and the lobed profiles of the outer ring results in a unique motion known as epicycloidal or hypocycloidal motion.

This motion generates torque that is transferred from the input shaft to the output shaft of the gearbox. The main advantage of a cycloidal gearbox is its ability to provide high torque output in a compact design. The multiple points of contact between the pins and the lobes distribute the load, enhancing the gearbox’s load-carrying capacity.

Cycloidal gearboxes are known for their smooth and controlled motion, making them suitable for applications requiring precise positioning and high torque capabilities, such as robotics, automation, and industrial machinery.

China Professional Suit Impact and Loading Situations Cycloidal Gearbox Withplanetary Drive for Against Shock   supplier China Professional Suit Impact and Loading Situations Cycloidal Gearbox Withplanetary Drive for Against Shock   supplier
editor by CX 2023-10-16

China Hot selling Aluminum Cast Iron Housing Transmission Drive Motor Shaft Smrv Series Reduction Helical Cycloidal Cyclo Planetary Worm Gearboxes car gearbox

Product Description

Worm gearbox speed reducer  electric motor dc are on sale with high quality for you

SMRV 571-150 worm gear box with flange and electric motor
SMRV+NMRV Double Stage Arrangement Reduction Gear Box
RV Series Worm Gearbox
worm speed reducer
nmrv worm gear motor

You can choose the 1 type that you need form these product introction.
If you have any question,please contact me.
HangZhou CHINAMFG Machinery Co.,ltd is a company specialized in research, manufacture and service of speed gearbox. Ever since establishment, we have been persisting in technical innovation, advancing the techonology to our products while maintaining our strict quality controls. It is the reason that our products branding ”Xihu (West Lake) Dis.n” have enjoyed such successful global sales.
At present, our company mainly supplies 5 series products as RV worm gearbox, UDL series speed variator,PC series helical gear unit,G3 helical geared motor and SRC helical gearbox. The products are widely applied in the mechanical equipment field such as food and beverage,cement,package,chemical and dyeing, rubber and plastic, CNC machine tool,etc.
Our products have been processed ISO 9001 Quality System Certification and exported to Italy,Spain,Britain,Poland,Turkey.The USA and other European countries,earn the good reputation with our outstanding quality and service. 
Customers first,customers satisfaction, excellent after sale service and incessant innovation are our tenet and motto. We will go all out to provide all the customers with high quality and service.

Shipping Cost:

Estimated freight per unit.



To be negotiated
Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Customization:
Available

|

Customized Request

cycloidal gearbox

Efficiency of Cycloidal Gearboxes in Power Transmission

Cycloidal gearboxes offer relatively high power transmission efficiency compared to other types of gearboxes. The efficiency of a cycloidal gearbox depends on various factors, including the design, quality of components, lubrication, and load conditions.

Typically, the power transmission efficiency of a cycloidal gearbox ranges from 85% to 95%. However, this can vary based on several factors:

  • Number of Reduction Stages: Multi-stage cycloidal gearboxes may experience slightly lower efficiency due to multiple gear meshing interactions.
  • Quality and Design: Well-designed and precision-manufactured cycloidal gearboxes tend to exhibit higher efficiency.
  • Lubrication: Proper lubrication is crucial for reducing friction and enhancing efficiency. Insufficient or deteriorated lubrication can lead to efficiency losses.
  • Load Conditions: Higher loads and torque levels can lead to higher friction and lower efficiency. Properly matching the gearbox to the application is essential.

Despite minor efficiency losses compared to some other gearbox types, the benefits of compactness, high torque density, and precise motion control often outweigh the efficiency considerations in many applications.

cycloidal gearbox

History of Cycloidal Gear System Development

The history of cycloidal gear systems dates back to ancient times, with various forms of non-circular gears being used for specialized applications. The concept of the cycloidal gear system as we know it today, however, has evolved over centuries of engineering and innovation:

  • Ancient Roots: The concept of using non-circular gears can be traced back to ancient civilizations, where devices like the “Antikythera Mechanism” (c. 150-100 BC) employed non-circular gear arrangements.
  • Cam Mechanisms: During the Renaissance, engineers and inventors like Leonardo da Vinci explored mechanisms involving cams and followers, which are precursors to modern cycloidal gears.
  • Cycloidal Motion Studies: In the 19th century, engineers and mathematicians like Franz Reuleaux and Robert Willis studied and developed mechanisms based on the principles of cycloidal motion.
  • Early Cycloidal Gearboxes: The development of cycloidal gear systems gained momentum in the late 19th and early 20th centuries, with inventors like Emile Alluard and Louis André creating early forms of cycloidal gear mechanisms and gearboxes.
  • Cycloidal Drive: The term “cycloidal drive” was coined by James Watt in the 18th century, referring to mechanisms that produce a motion resembling a rolling circle.
  • Modern Cycloidal Gearboxes: The development of modern cycloidal gearboxes was further advanced by engineers like Ralph B. Heath, who patented the “Harmonic Drive” in the 1950s. This invention marked a significant step in the advancement and commercialization of precision cycloidal gear systems.
  • Advancements and Applications: Over the decades, cycloidal gear systems have found applications in robotics, aerospace, automation, and other fields that require compactness, precision, and high torque capabilities.

The history of cycloidal gear system development reflects the contributions of many engineers and inventors who have refined and advanced the technology over time. Today, cycloidal gearboxes continue to play a crucial role in various industries and applications.

cycloidal gearbox

Disadvantages of Using a Cycloidal Gearbox

While cycloidal gearboxes offer various advantages, they also come with some disadvantages that should be considered:

  • Lower Efficiency at High Speeds: Cycloidal gearboxes can experience a decrease in efficiency at high speeds due to increased friction and rolling resistance.
  • Complex Design: The internal arrangement of pins, lobes, and bearings can result in a relatively complex design, which may lead to higher manufacturing costs and maintenance challenges.
  • Limited Gear Ratio Range: Cycloidal gearboxes might have limitations in terms of achieving very high gear ratios, which can impact their suitability for certain applications.
  • Cost: The specialized design and precision manufacturing involved in producing cycloidal gearboxes can lead to higher upfront costs compared to other gearbox types.
  • Noise Generation: While generally quieter than some other types of gearboxes, cycloidal gearboxes can still produce noise during operation, which might need to be addressed in noise-sensitive applications.
  • Availability: Cycloidal gearboxes might not be as widely available as other gearbox types, potentially leading to longer lead times for procurement and replacement parts.
  • Limited Backlash Adjustability: While cycloidal gearboxes have minimal backlash, adjusting or fine-tuning the backlash might be more challenging compared to other gearbox types.

Despite these disadvantages, cycloidal gearboxes remain a valuable choice for specific applications where their unique advantages outweigh the drawbacks.

China Hot selling Aluminum Cast Iron Housing Transmission Drive Motor Shaft Smrv Series Reduction Helical Cycloidal Cyclo Planetary Worm Gearboxes   car gearbox	China Hot selling Aluminum Cast Iron Housing Transmission Drive Motor Shaft Smrv Series Reduction Helical Cycloidal Cyclo Planetary Worm Gearboxes   car gearbox
editor by CX 2023-09-23

China wholesaler One-Button CZPT Shaft Output Cycloidal Gearbox with Coaxial Output gearbox drive shaft

Product Description

Starshine Drive Cycloid Geared Motor Characteristics

1. Features:
1. Smooth running,low noise gear tooth needle more engagement.
2. Cycloidal tooth profile provides a high contact ratio to withstand overload shocks
3. Compact size: single ratio available from 1/9 to 1/87, double stage up from 1/99 to 1/7569 
4. Ideal for dynamic applications: frequent start-stop-reversing duties suits for cyclo speed reducer since inertia is low
5. Reduce maintenance costs: high reliability, long life, minimal maintenance compared to conventional gearboxes
6. Internal parts replaceable with other brands to ensure running.

7. Grease Lubricated & Oil Lubricated Models Available
8. Output Shaft Rotation Direction: Single Reduction: Clockwise Rotation; Double Reduction→ Counter Clockwise Rotation
9. Ambient Conditions: Indoor Installation:10-40 Celsius, Max 85% Humidity, Under 1000m Altitude, Well Ventilated Environment, Free of corrosive,        explosive gases, vapors and dust
10.Slow Speed Shaft Direction: Horizontal, Vertical Up & Down, Universal Direction
11.Mounting Style: Foot Mount, Flange Mount & Vertical F-flange Mount,
12. Input Connection: Cyclo Integral Motor, Hollow Input Shaft Adapter
13. Coupling Method With Driven Machine: Coupling, Gears, Chain Sprocket Or Belt
14. Cycloid reducer Capacity Range: 0.37kW ~ 11kW;

2. Technical parameters

Type Old Type Output Torque Output Shaft Dia.
SXJ00 JXJ00 98N.m φ30
SXJ01 JXJ01 221N.m φ35
SXJ02 JXJ02 448N.m φ45
SXJ03 JXJ03 986N.m φ55
SXJ04 JXJ04 1504N.m φ70
SXJ05 JXJ05 3051N.m φ90
SXJ06 JXJ06 5608N.m φ100

About Us

ZheJiang CHINAMFG Drive Co.,Ltd,the predecessor was a state-owned military mould enterprise, was established in 1965. CHINAMFG specializes in the complete power transmission solution for high-end equipment manufacturing industries based on the aim of “Platform Product, Application Design and Professional Service”.
Starshine have a strong technical force with over 350 employees at present, including over 30 engineering technicians, 30 quality inspectors, covering an area of 80000 square CHINAMFG and kinds of advanced processing machines and testing equipments. We have a good foundation for the industry application development and service of high-end speed reducers & variators owning to the provincial engineering technology research center,the lab of gear speed reducers, and the base of modern R&D.

Our Team

Quality Control
Quality:Insist on Improvement,Strive for Excellence With the development of equipment manufacturing indurstry,customer never satirsfy with the current quality of our products,on the contrary,wcreate the value of quality.
Quality policy:to enhance the overall level in the field of power transmission  
Quality View:Continuous Improvement , pursuit of excellence
Quality Philosophy:Quality creates value

3. Incoming Quality Control
To establish the AQL acceptable level of incoming material control, to provide the material for the whole inspection, sampling, immunity. On the acceptance of qualified products to warehousing, substandard goods to take return, check, rework, rework inspection; responsible for tracking bad, to monitor the supplier to take corrective 
measures to prevent recurrence.

4. Process Quality Control
The manufacturing site of the first examination, inspection and final inspection, sampling according to the requirements of some projects, judging the quality change trend;
 found abnormal phenomenon of manufacturing, and supervise the production department to improve, eliminate the abnormal phenomenon or state.

5. FQC(Final QC)
After the manufacturing department will complete the product, stand in the customer’s position on the finished product quality verification, in order to ensure the quality of 
customer expectations and needs.

6. OQC(Outgoing QC)
After the product sample inspection to determine the qualified, allowing storage, but when the finished product from the warehouse before the formal delivery of the goods, there is a check, this is called the shipment inspection.Check content:In the warehouse storage and transfer status to confirm, while confirming the delivery of the 
product is a product inspection to determine the qualified products.

7. Certification.

Packing

Delivery

 

Application: Motor, Machinery, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Cylindrical Gear
Step: Single-Step
Customization:
Available

|

Customized Request

cycloidal gearbox

Efficiency of Cycloidal Gearboxes in Power Transmission

Cycloidal gearboxes offer relatively high power transmission efficiency compared to other types of gearboxes. The efficiency of a cycloidal gearbox depends on various factors, including the design, quality of components, lubrication, and load conditions.

Typically, the power transmission efficiency of a cycloidal gearbox ranges from 85% to 95%. However, this can vary based on several factors:

  • Number of Reduction Stages: Multi-stage cycloidal gearboxes may experience slightly lower efficiency due to multiple gear meshing interactions.
  • Quality and Design: Well-designed and precision-manufactured cycloidal gearboxes tend to exhibit higher efficiency.
  • Lubrication: Proper lubrication is crucial for reducing friction and enhancing efficiency. Insufficient or deteriorated lubrication can lead to efficiency losses.
  • Load Conditions: Higher loads and torque levels can lead to higher friction and lower efficiency. Properly matching the gearbox to the application is essential.

Despite minor efficiency losses compared to some other gearbox types, the benefits of compactness, high torque density, and precise motion control often outweigh the efficiency considerations in many applications.

cycloidal gearbox

Assembling and Disassembling a Cycloidal Gearbox

Assembling and disassembling a cycloidal gearbox requires careful attention to detail and precision. The process can vary depending on the specific design of the gearbox, but the general steps involve:

  1. Preparation: Gather all the necessary tools, components, and safety equipment for the assembly or disassembly process. Ensure a clean and organized workspace.
  2. Disassembly: To disassemble a cycloidal gearbox, follow these steps:
    • Remove any external components or covers to access the gearbox internals.
    • Identify and mark the positions of all components for reassembly.
    • Release any locking mechanisms or fasteners that hold the gearbox components together.
    • Remove each component carefully, starting from the outermost layers and moving inward.
  3. Cleaning and Inspection: Clean all components thoroughly using appropriate cleaning agents. Inspect each part for wear, damage, or any signs of degradation. Replace any components that are worn out or damaged.
  4. Reassembly: To assemble the cycloidal gearbox, follow these steps:
    • Begin by assembling the internal components in the reverse order of disassembly.
    • Apply lubrication to the gears and other moving parts as recommended by the manufacturer.
    • Follow the markings made during disassembly to ensure correct positioning and alignment of components.
    • Gradually secure each component with the appropriate fasteners, ensuring proper torque settings.
    • Reattach any external covers or components that were removed earlier.
  5. Testing: After reassembly, perform functional tests to ensure that the gearbox operates smoothly and without any issues. Check for any abnormal noises, vibrations, or irregular movements.
  6. Final Checks: Double-check all fasteners, connections, and alignments. Verify that the gearbox functions as intended and meets performance specifications.
  7. Documentation: Keep detailed records of the assembly process, including torque settings, markings, and any adjustments made during reassembly. This documentation will be useful for future maintenance or repairs.

It’s important to note that cycloidal gearboxes can have complex designs, and the exact procedure for assembly and disassembly may vary. Always refer to the manufacturer’s documentation and guidelines for specific instructions related to your gearbox model.

cycloidal gearbox

Industries Benefiting from Cycloidal Gearboxes

Cycloidal gearboxes find applications in various industries where their unique characteristics are advantageous:

  • Robotics and Automation: Cycloidal gearboxes are widely used in robotic systems for their compact design, high torque capacity, and precise motion control.
  • Material Handling: Industries such as logistics and warehousing benefit from cycloidal gearboxes in conveyor systems due to their ability to handle heavy loads and provide smooth and accurate movement.
  • Manufacturing: Equipment used in manufacturing processes, such as packaging machines and printing presses, often incorporate cycloidal gearboxes for their reliability and precise positioning.
  • Aerospace: In aerospace applications, cycloidal gearboxes can be found in satellite systems, where their compactness and high torque-to-weight ratio are crucial.
  • Medical Devices: Cycloidal gearboxes are used in medical equipment like robotic surgery systems for their precise movement capabilities and space-saving design.
  • Defense: Military applications, such as remotely operated vehicles and surveillance equipment, benefit from cycloidal gearboxes’ ability to handle rugged conditions and provide precise control.

These industries leverage the advantages of cycloidal gearboxes to enhance the performance and efficiency of their systems.

China wholesaler One-Button CZPT Shaft Output Cycloidal Gearbox with Coaxial Output   gearbox drive shaft	China wholesaler One-Button CZPT Shaft Output Cycloidal Gearbox with Coaxial Output   gearbox drive shaft
editor by CX 2023-09-22