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What are the important parameters for the selection of miniature reduction motor?

2022-05-19

Hello, I'm Xiaobian. Micro reduction motor can provide low speed, large torque output, the application is very many, different products for micro reduction motor performance requirements are different, especially the reduction ratio, the greater the reduction ratio, the lower the output speed of the reducer is the greater the torque, on the contrary, the faster the output speed is the lower the torque. In addition to the reduction ratio, what are the important parameters in the selection of micro reduction motor? The following small series is to briefly explain the important parameters of the selection of miniature reducer motor.



1. Rated voltage
Voltage and the speed of the micromotor is, the higher the speed faster, but if the micro gear motor rated voltage, first micromotor efficiency will decline, and can increase the current to produce a lot of heat, resulting in the micro deceleration motor shorten the service life and high burning with fever, general micro decelerating electrical chance to have a working voltage range, Xiaobian does not recommend that the micro reducer motor run beyond or below the operating voltage range (low voltage operation will also produce very large current).

2. No-load speed
No-load speed refers to the fastest rotation speed under rated voltage when the micro-reducer motor is not connected. The difference between no-load speed and load speed is relatively large, depending on the size of the load, the larger the load, the slower the final output speed will be.

3. Rated power
The output power of the micro-deceleration motor can be obtained by current × voltage when it runs under rated voltage.

4. Blocking torque
Refers to the maximum torque provided by the output shaft of the miniature reduction motor when it does not rotate. If the blocking time exceeds a few seconds, the miniature reduction motor will be burnt down due to excessive current.

5. Blocking current
Similar to the blocking torque, refers to the current consumed by the micro motor under the maximum torque condition, the current is very high, if there is no blocking current control protection, will make the micro reducer motor damage.

The torque of the 6.
The torque of micro-deceleration motor is calculated by force × distance. For example, the motor rotating under 10Nm blocking torque can maintain 10N within 1m. Similarly, it remains 20N within 0.5m.