Motor vibration causes and maintenance methods
There are many reasons for motor vibration and it is complicated. 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, "Rotating Motor Vibration Limits and Test Methods" stipulates the vibration limit, measurement method and rigid foundation determination criteria for different center high motors on a rigid basis. The standard can determine 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, causing the insulation resistance to decrease and the leakage current to increase, even forming 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 disconnected, the motor will cause abnormal wear of the carbon brush and the slip ring, and even a 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.
If you want to buy a power tool motor, please pay attention to Garden Tools Motor.
