What to do with different axis of planetary reducer?

The different axis of the planetary reducer may cause some problems of the planetary reducer, which will affect the normal operation of our planetary reducer. What should we do when the planetary reducer has different axis?

When the concentricity of the assembly between the drive motor and the planetary reducer is ensured well, the output shaft of the drive motor bears only the rotational force (torque), and it runs smoothly without pulsation. When it is out of concentricity, the output shaft of the drive motor also bears the radial force (bending moment) from the input end of the planetary reducer. The action of this radial force will force the output shaft of the drive motor to bend, and the direction of the bend will change continuously with the rotation of the output shaft. If the concentricity error is large, the radial force will increase the local temperature of the motor output shaft, and its metal structure will continue to be destroyed, which will eventually cause the drive motor output shaft to break due to local fatigue. The greater the error of the concentricity between the two, the shorter the time for the output shaft of the drive motor to break.

When the output shaft of the drive motor is broken, the input end of the planetary reducer will also bear the radial force from the output shaft of the drive motor. If this radial force exceeds the maximum radial load that the input end of the planetary reducer can withstand, its As a result, the input end of the reducer will be deformed or even broken or the input end support bearing will be damaged. Therefore, it is very important to ensure concentricity during assembly.

From the analysis of the assembly process, if the drive motor shaft and the planetary reducer input end are concentric, then the drive motor shaft surface and the planetary reducer input end hole surface will be very consistent, their contact surfaces are tightly attached, and there is no radial force. And deformation space. However, if the assembly is not concentric, there will be no match or gap between the contact surfaces, there will be radial force and space for deformation.

Similarly, the output shaft of the planetary reducer has broken or bent, and the reason is the same as that of the broken shaft of the drive motor. However, the output of the planetary reducer is the product of the output of the drive motor and the reduction ratio. Compared with the motor, the output is greater, so the output shaft of the planetary reducer is more likely to be broken.

When using a planetary reducer, the user should pay more attention to the guarantee of the concentricity of its output terminal assembly, so as to ensure the work of our planetary reducer and extend the service life of the planetary reducer.