The main heat-generating components of the motor are generally windings and bearings. Specific temperature abnormalities on the surface are generally divided into the following categories: bearing temperature is too high, winding temperature is too high, chassis temperature is too high, etc.

Bearing temperature is too high

Hazard: The bearing of the motor is the main component that supports the rotor. If the temperature is too high and it is not resolved, it will cause the motor bearing loss to become larger and the efficiency to become lower; it may even cause the motor bearing to bite, causing the motor to stall suddenly; finally resulting in a complete set of traditional Damage to the system. Therefore, the monitoring of the condition of the motor bearings is essential.

Reasons: The causes of excessively high bearing temperature generally include the following types of wear: mechanical components will inevitably wear out during long-term operation. Normally running motors should replace the bearings every few years. Laziness in this area may cause Excessive bearing wear. The bearing after excessive wear will produce a series of phenomena, such as high bearing temperature, large bearing vibration and bearing abnormal noise.

Oil shortage: Grease will be added to the bearing of the motor to lubricate the bearing. The grease in the motor bearing during normal operation will be gradually worn out. When the grease loss is too large, it will cause poor lubrication, which will cause the motor bearing The temperature rises significantly. When it is found that the bearing temperature is too high and there is no other accompanying phenomenon, the bearing of the motor should be stopped and checked.

Others: As a whole component of the motor, the excessive temperature of each component may be transmitted to the bearing and cause the temperature of the bearing to be too high. Therefore, when the bearing is found to be abnormal, it should focus on checking the abnormality of each component of the motor near the bearing situation.

The problem of significant increase in bearing temperature needs to be checked in time, because if such problems are not solved in time, when the bearing temperature is too high, it may cause grease evaporation and other phenomena, which will greatly increase the loss of grease in a short period of time The bearing is damaged or even killed, so when the bearing temperature is found to be too high, it needs to be checked in time to avoid further harm.

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