Motor axial vibration maintenance method
1. Electrical maintenance: Firstly, determine whether the three-phase DC resistance of the stator is balanced. If it is unbalanced, it indicates that the welding of the stator wire is open, and the winding is separated to find out whether there is a short circuit between the windings, such as fault. Obviously, the burnt marks can be seen from the insulating surface, or the stator winding can be measured with an instrument, and after confirming the short circuit between turns, the electric winding is re-offline.
2. Mechanical maintenance: Check whether the air gap is uniform. If the measured value exceeds the standard, re-adjust the air gap, check the bearing, if the measurement gap is unqualified, replace the bearing, check the deformation and looseness of the iron core, and loose the iron core with epoxy resin. Bonding and filling, checking the shaft, repairing the reaming of the curved shaft or directly straightening the shaft, and then performing a balance test on the rotor.
3. The load machinery check is normal, and the electric itself has no problem. The cause of the fault is caused by the connection part. At this time, it is necessary to check whether the basic level, inclination, strength, center alignment of the motor is correct, the coupling is broken, and the motor Whether the shaft phase is satisfactory.
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