Motor vibration problem processing
1. Maintenance of electrical causes
The first is to determine whether the three-phase DC resistance of the stator is balanced. If it is unbalanced, it means that the welding part of the stator is welded, the winding is separated by phase, and the winding is short-circuited. If the fault is obvious, it can be insulated. The surface is burnt, or the stator winding is measured with an instrument. After confirming the inter-turn short circuit, the motor winding is re-routed.
2. Load mechanical part inspection
Check the basic level of the motor, the inclination, the strength, whether the center is correct, whether the coupling is damaged, and whether the motor shaft extension is in compliance with the requirements.
3. Maintenance of mechanical reasons:
Check whether the air gap is uniform. If the measured value exceeds the standard, re-adjust the air gap; check the deformation and looseness of the core. The loose iron core can be bonded with epoxy resin. Check the rotating shaft, repair the curved shaft or directly replace the new shaft. Then, perform a balance test on the rotor; inspect the bearing, measure the bearing clearance, and if there is a journal defect, restore the original size and reassemble the bearing.
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