Our miniature DC deceleration motor has the advantages of high transmission efficiency and high accuracy, which is also the reason why it is favored by enterprises. But in the long-term use, the phenomenon of axle breakage often occurs, which attracts our attention. What is the reason?
When the concentricity of miniature DC deceleration motor is guaranteed very well in assembly, the output bearing of DC deceleration motor is only subject to rotating force, and it will be very easy to operate. However, when the DC deceleration motor is not centrally connected to the decelerator, the output shaft must bear the radial force from the input end of the decelerator. The long-term effect of the radial force will force the motor output shaft to bend, and the bending direction of the DC deceleration motor shaft will change with the rotation of the output shaft. The direction of transverse force varies 360 degrees for each rotation of output shaft of DC deceleration motor. If the concentricity error is large, the radial force makes the temperature of the motor output shaft rise, and the metal structure of the motor is destroyed continuously. Finally, the radial force will exceed the radial force that the output shaft of the DC deceleration motor can bear, which will eventually lead to the breakage of the output shaft of the DC deceleration motor.
The bigger the concentricity error of micro DC deceleration motor is, the shorter the breaking time of the output shaft of driving motor is. Therefore, when the output shaft of the drive motor is broken, the input of the DC deceleration motor will also bear the radial force of the motor. Therefore, it is very important to ensure concentricity in assembly.
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