No.1 The motor makes abnormal noises when running. There are abnormal noises.
- Cause of Motor Failure.
① The rotor rubs against the stator insulation paper or slot wedge;
② Bearing wear or foreign matter such as sand in the oil;
③The stator and rotor cores are loose;
④The bearing is short of oil;
⑤ Air duct filling or fan wiping cover;
⑥The stator and rotor cores rub against each other;
⑦The power supply voltage is too high or unbalanced;
⑧The stator winding is misconnected or short-circuited.
- Troubleshooting
① Insulation, cut into low grooves;
②Replace the bearings or clean the bearings;
③Detection stator and rotor core;
④Add lubricant oil;
⑤Clean the air duct; reinstall the device;
⑥Eliminate scratches;
⑦ Check and adjust the power supply voltage;
⑧Troubleshoot the stator winding failure.
No.2 The motor vibrates greatly during operation
- Cause of Motor Failure.
①The bearing clearance is too large due to wear;
②The air gap is uneven;
③The rotor is unbalanced;
④The rotating shaft is bent;
⑤The iron core is deformed or loose;
⑥The center of the coupling (pulley) is not corrected;
⑦The fan is unbalanced;
⑧The chassis or foundation is not strong enough;
⑨The motor anchor screws are loose;
⑩ The cage rotor is open and disconnected; the wound rotor is open; and the stator winding is faulty.
2.Troubleshooting
①Inspect the bearings and replace them if necessary;
②Adjust the air gap to make it uniform;
③Correct rotor dynamic balance;
④ Straighten the rotating shaft;
⑤Correction of overlapping cores;
⑥Recalibrate to make it comply with regulations;
⑦Inspect the fan, correct the balance, and correct its geometric shape;
⑧Reinforcement;
⑨Tighten the anchor screws;
⑩Repair the rotor winding; repair the stator winding.
Founded in 2017, Shandong Qijun Mechanical and Electrical Equipment Manufacturing Co.,Ltd.(QIJUN MOTOR) is a professional company which is specialized in Three Phase Asynchronous Motor, Explosion-proof AC Motor, Single Phase Electric Motor, Brake Motor, Shaded Pole Motors, Gear Motor etc., It has employees more than 150 including 30 senior engineers,20 R & D technicians, more than 50 professional technicians. Plant covers an area of 20 acres. We have strong technology research and development team, Advanced automatic CNC production equipment ,the international first-class type testing center. All products according to the international IEC Standard production to meet the needs of foreign customers.