Quite common Planetary reducer What are the types and function modules of. According to the planet Reducer It is required to use different types of planetary reducer. According to the different characteristics of planetary reducers, different types of planetary reducers can be divided. The more common planetary reducer includes a worm gear reducer; Planetary reducer; Harmonic reducer.

1、 Common types of planetary reducer

（1） The harmonic drive of harmonic reducer uses the elastic deformation that can be controlled by soft components to convey the driving force of the activity. The volume is very small and the precision is very high. However, the disadvantage is that the flexible wheel has a limited service life, is not impact resistant, and its stiffness is weaker than that of metal products. The input speed ratio cannot be too high.

（2） The advantages of planetary reducer are compact structure, small return clearance, high precision, long service life, and large rated output torque. But the price is a little expensive.

（3） The main feature of worm gear reducer is that it has a reverse direction self-locking switch function module, which can have a large reduction ratio. The input shaft and output shaft are not on the same axis, nor on the same surface. But usually the volume is large, the transmission speed is not high, and the precision is not high.

2、 Functional module of planetary reducer

（1） At the same time, the speed reduces the inertia of the load, which is the square of the reduction ratio. You can see that motors usually have one inertia parameter value.

（2） At the same time, increase the output torque. The proportion of torque output shall be based on the multiplying/decelerating ratio of motor output, but special attention shall be paid not to exceed the rated torque of planetary reducer.

3、 Type of planetary reducer

The usual planetary gear reducer is inclined Gear reducer Including parallel shaft helical gear reducer, worm gear reducer, bevel gear reducer, etc Planetary gear reducer Cycloidal pin gear planetary reducer, worm gear and worm reducer, planetary friction type mechanical equipment stepless speed reducer, etc.

Planetary reducers are usually suitable for hydraulic equipment with low speed ratio and large torque. The driving force of motors, gas turbines or other high-speed operation is reduced by passing through the large gear on the input shaft with fewer teeth of the planetary reducer to mesh with the large gear on the output shaft. Common planetary reducers also have several sets of transmission gears with the same basic principle to achieve ideal speed reduction, The reduction ratio is the ratio of the number of teeth of the size transmission gear.