How can I solve this problem? FifteenOur motor is used in the submersible pump, the speed in the 3000 turn around /min, now excessive vibration occurs, or for a better quality of the bearing vibration is too large, please professional prawns, this is what reason? How to solve?
1, first of all, do not know what you are using bearings, I do not know if you choose the bearings there is no problem.2, secondly, if you choose the correct bearings, shaft and bearing installation is not a problem? Preload is not enough? Loosely matched?3, it is best to know the motor power, you choose the type of bearing. In this way, we will give you the correct answer to the question ah.
It is estimated that the bearing clearance is too large to cause vibration. If the original pump work environment temperature of 20 degrees, now 5 degrees. When the thermal expansion of the bearing decreases and the clearance becomes larger, the vibration of the motor will be too large. It is suggested that the clearance bearings be selected according to the running temperature and speed of the motor.
The rotor balance is poorThe impeller of the water pump doesn't balance properlyThe rotor is not in the center positionThe impeller is not in the centerLoose partsResonance generationForeign bodies on the surface of the impellerIf it is three-phase, it may be unbalancedThere may be foreign material in the outlet pipe, resulting in a vortex street.
