Seven ways to solve the twin shaft shredder motor overheating

At present, there are many shredding machines, my company mainly produces twin shaft shredder machine, single shaft shredding machine, metal shredding machine, tire shredding machine and so on. However, there will be motor overheating when twin shaft shredder machine is used, so there are many factors for shredding mechanical and electrical motor temperature is too high. After the motor heating, the insulation temperature of the motor winding will rise, and the insulation reaction to high temperature is very strong, will accelerate aging, reduce the service life. If the temperature rises too high, it will make the insulation carbonization, lose the insulation effect, and the windings of the motor will short circuit and make the shredding machine fail. Therefore, the inspection, detection and protection of motor overheating faults are very important to reduce the accident rate, reduce accident loss and improve the economic benefit of enterprises. 

So, how should we know the motor overheating phenomenon:

1. Thermometer method: the temperature rise of the motor is measured directly with a thermometer

2. Handle method: touch the specified part of the motor by hand, and estimate the motor temperature according to the strength of the handle heat

3, resistance method: the use of conductor resistance with temperature rise and increase the principle of measurement.

So how should we deal with the motor overheating of twin shaft shredder machine?

Overheating of the double shaft shredder motor requires comprehensive treatment from three aspects: mechanical, electrical, and environmental. In terms of mechanical aspects, check the air gap between the stator and rotor, and adjust the end cover gasket if it is too small; Check the lubrication and wear of bearings, clean up impurities that have infiltrated the material to prevent insulation damage, and replace bearings and replenish lubricating grease if necessary. In terms of electrical aspects, calibrate the power supply voltage to the rated range, troubleshoot winding short circuits or open circuits, and conduct a withstand voltage test after repair; Strengthen phase loss protection, check fuses and contactors, and install electronic protection modules. In terms of environment, clean the dust on the heat sink, ensure smooth ventilation, check the fan blades, and install forced cooling devices in high-temperature environments; Control the load to avoid overload, use a variable frequency feeder to adjust the feeding speed, and install a torque limiter. When handling, it is necessary to immediately shut down the machine and cut off the power. Follow the steps to troubleshoot, repair it, and conduct a no-load trial run to monitor the status. Record the fault report and update the maintenance file. Through systematic disposal, the overheating problem can be effectively solved, ensuring the stable operation of the equipment.