The maintenance and upkeep of the carbon brush holder should be checked regularly.
1. The carbon brush holder is a vulnerable component. Clean the dust on the carbon brush to keep it in good working condition, and replace it with a new one.
2. Replacement of carbon brushes. When the carbon brush wears out too much.
In practical operation, the knowledge of carbon brush holder is that the contact area between the arc surface of the carbon brush and the commutator or collector ring should not be less than 75% of the cross-section of a single carbon brush. It should be noted that the carbon brush arc grinding at the factory is only rough grinding, and the arc grinding is generally carried out on the motor.
The carbon brush holder structure is characterized by a conductive ring located on the bottom side of the upper non-metallic plate of the carbon brush holder, which can avoid the central opening of the carbon brush holder and the bottom metal plate of the carbon brush holder; The two ends of the conductive ring are in a conductive form with the conductive elements on the upper non-metallic plate of the carbon brush holder, and one end is connected to a wire for conduction; The other end of the wire is connected to a fixed screw for conduction. The fixed screw is fixed at an appropriate position on the motor housing in an insulated manner that does not form a conductive gap with the housing, and the screw of the fixed screw protrudes outside the housing.
