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Why is there a high-frequency vibration motor running noise, how to deal with
After a period of high-frequency vibration motor running may occur during the operation of the noise, which is what causes the noise it generates? How they should deal with it?
1. change very rewind, groove mismatch: To check the stator and rotor slots fit.
2. The rotor friction insulating paper or wedge: trimming insulating paper or overhaul wedge.
3. bearing wear or failure: repair or replacement of the bearings.
The stator and rotor core loose: Check vibration reasons, re-pressed core processing.
5. The vibration motor voltage is too high or three-phase voltage imbalance: Measure the power supply voltage, and check the voltage is too high or the reasons for the imbalance.
6. The stator windings are wrong: check wiring diagram, after re-heating the ends plugged in the correct connection (including banding, insulated and painted).
7. The winding is faulty (eg short circuit): The breaking parts heated to a temperature insulation class allowed to make paint to soften, then stir up the break, with the same line will be cut off part of the welding specifications, the package is good insulation, and then after painting, drying.
8. When rewinding is not equal to the number of turns per phase: Re-winding, correct turns.
9. Missing bearing grease: cleaning bearings, adding the appropriate grease to the bearing chamber filled with a net volume of 1/2 to 1/3.
10. Fan touch hood or duct blockage: repair the fan cover and wind, making the correct geometry, cleaning the air duct.
11. breath uneven, stator and rotor mutual friction.
These are possible causes of noise, the most important thing in the usual course of maintenance, we buy a car also know that regular maintenance, vibration motor is the same, it can provide timely maintenance work efficiency and the use of lifetime.
