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What is the inertia of planetary reducer? The importance of reducer inertia?

Views:0     Author:Site Editor     Publish Time: 2021-12-30      Origin:Site

When selecting the micro reduction motor, the inertia of the planetary reduction motor is particularly important. Whether the motor can be controlled during the start and stop of the planetary reduction motor is related to the inertia. A simple understanding is whether it is stable during the electric start and stop. The planetary reducer can enlarge the moment of inertia of the DC motor by the square of the speed ratio of the planetary reducer. If the speed ratio of the planetary reducer is 1:10, the moment of inertia is directly amplified by 100 times.




Inertia matching




The moment of inertia of planetary reducer is a very important parameter in the reduction motor. Sometimes it is found that after the reduction motor is selected according to the speed, torque and other parameters, there are still some problems, so we need to pay attention to the moment of inertia. The load moment of inertia on the motor shaft is reduced according to the inverse multiple of the square of the transmission ratio, that is, the square multiple of 1 / I.




The inertia of DC motor is very small. The load inertia normally converted to DC motor can not exceed 4 times of its own inertia. However, there are many kinds of loads in practical application. If the load inertia is too far from the acceptable inertia of DC motor, the response speed of DC motor will be greatly reduced, which will eventually affect the efficiency and increase the error. The more precise planetary reducer plays a key role in inertia matching.


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