Motor vibration principle and maintenance methods!
Generally, motors with more than 8 poles and large numbers do not cause vibration due to motor manufacturing quality problems. Vibration is common in 2-6 pole motors, GB10068-2000.
The "Rotating Motor Vibration Limits and Test Methods" stipulates the vibration limit, measurement method and rigidity basis of different center high motors on the basis of rigidity. According to this standard, it can be judged whether the motor meets the standard.
Harm of motor vibration
The vibration of the motor will shorten the insulation of the winding and the bearing life, affecting the normal lubrication of the sliding bearing. The vibration force will expand the insulation gap, and the external dust and moisture will invade it, resulting in the decrease of the insulation resistance and the leakage current, and even the formation of insulation breakdown. Waiting for an accident.
In addition, the motor generates vibration, and it is easy to cause the cooler water pipe to crack, the welding point to vibrate, and damage to the load machinery, reduce the accuracy of the workpiece, cause fatigue of all mechanical parts subjected to vibration, and loosen the anchor screw. Or break it.
The motor vibration will cause abnormal wear of the carbon brush and the slip ring. Even the severe brushing will burn the collector ring insulation, and the motor will generate a lot of noise. This situation usually occurs in the DC motor.
The company focuses on the production of valve control motor and automatic valve control motor.
