When selecting a micro geared motor, the inertia of the planetary geared motor is particularly important.Whether the motor can be controlled and stopped during the start and stop of the planetary gear motor is related to inertia.A simple understanding is whether it is stable during electric starting and stopping.The planetary reducer can expand 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 100 times.
inertia matching
The moment of inertia of the planetary reducer is a very important parameter in the reduction motor.Sometimes it is found that after selecting the restored motor 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 decreases according to the inverse multiple of the square of the transmission ratio, which is the square multiple of 1/I.
DC motors have very little inertia.Usually the load inertia converted to a DC motor cannot exceed 4 times its own inertia.However, there are many loads in real applications.If the load inertia is far away from the acceptable inertia of the DC motor, the response speed of the DC motor will be greatly reduced, which will eventually affect the efficiency and increase the error.A more precise planetary reducer plays a key role in inertia matching.
