Planetary Speed Reducer

Product Introduction

Planetary speed reducer is an industrial transmission product with wide applications. Its main transmission structure consists of planetary gears, sun gear and ring gear1. During operation, the sun gear is in the center and transmits torque to the planetary gears that rotate around it. The planetary gears mesh with the ring gear. Through this multi-tooth meshing transmission mode, the input of low torque and high speed is converted into the output of high torque and low speed45. Planetary speed reducers can be designed as single-stage, double-stage, triple-stage or even four-stage reduction according to requirements. The single-stage reduction ratio is generally between 3 and 10, and multi-stage reduction can achieve a larger reduction ratio12. It is usually used in combination with servo motors, stepper motors, etc., and plays an important role in many fields such as industrial automation, robotics, CNC machine tools, textile machinery and packaging machinery, being used to reduce speed, increase torque and match inertia3.

1.High Precision: It adopts precision processing technology and high-quality materials. For example, some helical planetary speed reducers can achieve a return clearance of 1-3 arc minutes in a single stage, which can ensure high-precision transmission and meet the needs of precise positioning236.

2.High Reduction Ratio: It provides a variety of reduction ratio options, including single-stage, double-stage, triple-stage and multi-stage reduction methods. Common single-stage reduction ratios are 3, 4, 5, etc. The multi-stage reduction ratio can be obtained by multiplying the single-stage reduction ratios, which can meet the requirements of different equipment for output speed and torque237.

3.Multi-Tooth Meshing: The planetary gears mesh with the sun gear and the ring gear at multiple points, making the force transmission more uniform and the transmission more stable and reliable5.

4.Dual Support Structure: The output shaft of some planetary speed reducers is dual-supported. For example, the output planetary carrier of some models adopts an integrated dual-support structure, and the front shaft bearings are widely spaced in the box, which can ensure high torsional rigidity6.

5.Complete Specifications: From small frame numbers to large ones, it can be matched with motors of different powers, providing a rich selection for transmission systems of different scales and powers2.

1.High Efficiency: The transmission efficiency is usually above 95%, with little energy loss. The planetary gears are in complete and constant meshing, reducing energy loss caused by gear collisions and etc45.

2.High Load Capacity: With a reasonable design, multiple planetary gears share the load, enabling it to withstand large radial and axial loads and operate stably under heavy load conditions35.

3.Compact and Lightweight: Due to the distribution of multiple planetary gears around the sun gear and sharing a common shaft, it has a high power density compared with traditional speed reducers, featuring small size and light weight45.

4.Low Noise: By optimizing the gear design and manufacturing process, such as dressing the tooth profile and lead of the tooth surface, the noise during operation is reduced and the working environment is improved36.

5.Long Service Life: It is lubricated with high-quality grease and has good sealing performance. The gears are evenly stressed and have been hardened and etc, which reduces wear and prolongs the service life35.

 

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