Micro gear motor selection skills and factors affecting life

Micro gear motor selection skills:

1. When choosing a planetary reducer, first determine the reduction ratio.

2. After determining the reduction ratio, multiply the rated torque of the motor you have selected by the reduction ratio. In principle, the value obtained is smaller than the rated output torque of the similar reducer provided in the product catalog, and the overload of the driving motor should also be considered. capacity and the actual maximum working torque required.

The required maximum working torque should be less than twice the rated output torque. After meeting the above conditions, please choose the reducer with the smallest volume. The cost of the reducer with small volume is relatively low.

General operating torque, and 50% of the maximum torque of step deceleration, gear clearance needs to be considered. The power-off lock shaft torque of the reducer needs to be considered (stepper motor reducers are generally used for power-off lock shafts, and the size of the reduction ratio determines the maximum speed and maximum output torque of the stepper motor.

3. Next, consider the return clearance of the planetary reducer. The smaller the return clearance, the higher the accuracy and the higher the cost. Users can choose a series of reducers that meet their precision requirements.

Also consider lateral/radial forces and average life. The reducer with large lateral/radial force has high reliability in installation and use, and is not prone to problems. Usually its average lifespan far exceeds the lifespan of the equipped servo motor.

After meeting the above indicators, you can choose the reducer that matches your motor in terms of installation size, shaft diameter and input flange according to the product catalog provided by our company.

4. Finally, you also need to consider the weight of the motor. A type of reducer is only allowed to be matched with a motor less than a certain weight. The motor is too heavy, and long-term operation will damage the input flange of the reducer.

Factors affecting the service life of the micro gear motor: frequent startup; impact loading; instant reversal in forward and reverse directions; continuous operation for a long time; exceeding the allowable load of the protruding suspension and exceeding the allowable thrust load; forced rotation of the output shaft; Pulse drive of dynamic, reverse current, pwm braking, etc.; beyond the operating temperature range, relative humidity range, or used in special environments; use voltages outside the standard rated specifications.