A DC motor is a motor that converts DC electrical energy into mechanical energy, and is widely used in electric drive because of its good speed regulation performance. Because of this, we have to do a good job in the installation and maintenance of the motor.
A DC motor is a motor that converts DC electrical energy into mechanical energy, and is widely used in electric drive because of its good speed regulation performance. Because of this, we have to do a good job in the installation and maintenance of the motor.
When the DC motor is in use, if the maintenance is not paid attention to, the bearing will be over-tightened or damaged. In order to avoid this situation, certain measures need to be taken. So what is the reason for the over-tightening of the DC motor bearing?
The operator is afraid of the bearing room of the end cover of the car, and the tolerance of the outer ring of the bearing and the end cover should be suitable when repairing the DC motor. Emphasis is placed on the lower limit of the tolerance range, and it is unwilling to drive to the upper limit, so that the diameter of the bearing chamber is too small, which increases the interference with the outer ring of the bearing; There is not enough understanding that the bearings of DC motors are good for reducing noise. For example, when dismantling the motor bearing, it was found that the outer ring of the bearing and the end cover fit very well, so it was mistakenly thought that the bearing fit was too loose, so it was solved by padding copper, punching holes, or even replacing the end cover, or replacing the bearing, and enlarging the diameter of the outer ring. For this problem, the most common method is to expand the bearing chamber of the end cover, and then insert a sleeve so that the bearing and the bearing chamber of the end cover are closely matched. As a result, the bearing noise increases after the motor is repaired, and the bearing heats up.
Regarding the tightness of the bearing, everyone should pay attention to the operation method when operating and maintaining the equipment. If you don’t understand the situation, you should consult the manufacturer for operation. Do not operate at will, causing damage and failure of the equipment. In order to further understand the defects in the operation of the DC brushless geared motor, an inspection test can be done before disassembly if possible.
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