What is the harm of frequently changing the steering of the motor

Frequent change of motor steering will cause many kinds of harm to the motor. ‌

First of all, ‌ frequently changing the motor's steering will cause the motor to produce frequent gridlock current, ‌, which will make the motor winding temperature rise, ‌ easy to age, ‌ thereby shortening the service life of the motor. ‌ In addition, the ‌ contactor is frequently drawn and ‌ is disconnected, the ‌ contact is easy to be burnt out, ‌ has great mechanical impact on the rotor, ‌ end cover and ‌ bearing of the motor, and ‌ causes mechanical damage 1. ‌

Secondly, ‌ the frequent positive and negative transfer of the motor causes damage to the parts of the motor, ‌ the parts that are very easily damaged are the bearings and circuit boards of the motor. ‌ The bearing of the motor is responsible for supporting the rotor and resisting rotation inertia, ‌ to make the motor run more smoothly. ‌, however, ‌ frequent positive and negative transfer causes the bearing to be subjected to very large friction, ‌ resulting in bearing wear and damage. ‌ circuit board as an important part of the motor, ‌ is responsible for controlling the operation of the motor, ‌ but due to the frequent positive and negative rotation of the motor vibration, ‌ circuit board may be damaged, ‌ such as short circuit. ‌

Finally, ‌ the change of motor steering will affect the performance of the motor. ‌ For a motor that can be turned forward and backward, ‌ its parts should be in a circumferential symmetry state ‌ to avoid performance differences under different steering conditions. ‌ If the parts are incomplete, ‌ deformation, etc., ‌ may lead to great differences in the performance of the motor under different steering. ‌ For the motor that can only run in one direction, ‌ reverse operation may cause the temperature rise level of the motor to deteriorate, ‌ in serious cases may lead to winding burn3. ‌

In summary, ‌ frequently changing the motor's steering will cause many damages to the motor, including ‌ shortened service life, ‌ damaged bearing and circuit board and affected motor performance. ‌ Therefore, ‌ when using the motor should try to avoid frequently changing its steering.