The vibration and noise of the motor

Normal operation of motor is stable equilibrium, in case of severe vibration shows a malfunction or abnormal noise. Light will affect the normal operation, shorten the life of equipment; Or burning motor, serious will endanger the whole pump room safe. Therefore, once appear, fault, shall be immediately cut off the power and stop running, timely find out the analysis of the cause of the ac electric motor problem, in order to avoid the situation further, causing a greater loss. Must find out the cause of the problem and the correct processing, can continue to run. 

(1) the cause of motor vibration for many reasons, the cause and the treatment methods such as the common motor vibration (1) adverse or lower quality check, calibration installation quality (2) bearing corrosion or wear adjust or replace the bearing (3) the rotor winding is impaired, asymmetric magnetic rotor winding (4) the loose coupling, different maintenance and calibration shaft for the school (2) the phenomenon of abnormal noise of the motor and the reasons are: (1) if there is a huge buzz, said current excess, this is due to overload or imbalance of three phase current, sometimes caused by power frequency instantly change; (2) if a hissing sound, it is caused by relaxation of silicon steel sheet; (3) if there is the voice of "guru, guru", is a bearing frame in damage, noise in operation; (4) when the bearing wear, motor air gap change, is not even touch between rotor and stator grinding sound, and with an exception of anxious burnt smell and smoke; 5. If two phase short circuit and arc has a huge sound, and issue a special caramel flavour. In addition, the monitoring of motor temperature is extremely important. According to the type of motor and winding insulation materials, used in the operation should not exceed one of the biggest manufacturers of winding and iron core allows the temperature and the temperature rise, the maximum allowable temperature and maximum permissible temperature rise is the relationship between: three phase induction motor maximum allowable temperature = maximum permissible www.facebook.com/dongfeng.motor temperature rise + ambient air temperature.