Combined carbon brush for electric polisher

Abstract

The invention discloses a combined carbon brush for an electric polisher. The combined carbon brush for the electric polisher comprises a carbon body, a copper bush, a left wire, a right wire and an insert piece. The combined carbon brush for the electric polisher is characterized in that the carbon body comprises a left carbon block and a right carbon block, the two carbon blocks are bonded into a whole through a bonding layer, the end portion of the carbon body is sleeved with the copper bush, the left wire and the right wire extend from the copper bush, the insert piece clamps the other end of the left wire and the other end of the right wire together through a clamping connector, the clamping connector is directly connected with a contact piece, and two paratactic binding posts are arranged one side, perpendicular to the clamping connector, of the contact piece. According to the combined carbon brush for the electric polisher, an angle plug replaces a traditional connector, two wire-clamping pillars are arranged on the angle plug, and the wire-clamping pillars can firmly clamp a motor wire, and can fix the carbon brush and conduct electricity at the same time; the insulation bonding layer is additionally arranged in the middle of the carbon body, and the commutating performance of the carbon brush is improved; the carbon body is replaced when the carbon brush needs to be replaced, the copper bush, together with the wire on the copper bush can be used repeatedly, and therefore cost and pollution are reduced.

Description

[0001] Technical field [0002] The invention involves a carbon brush, especially a carbon brush for electric polishing machines. [0003] Background technique [0004] Carbon brush is a device that transmits energy or signals between the fixed part of an electric motor or generator or other rotating machinery. When the motor is rotated, the electrical energy is transported to the coil through the phase device.As a sliding contact part, carbon brush is widely used in many electrical devices.Traditional carbon brushes are generally made of pure carbon coagulants. The appearance is generally square, with large volumes and small size. There are wires on the top, and the wires are connected to the connector.Generally, the wires are welded on the joint, and the other side of the joint is fixed on the brush nest through the spring, and the pressure of the spring fixing is small.Motor work; when the motor is running at a high speed, due to the small thermal expansion coefficient of the ...

AI Technical Summary

Problems solved by technology

Generally, the wire is welded on the joint, and the other side of the joint is fixed on the brush socket by a spring, and the pressure of the spring is relatively small. The motor works; when the motor is running at high speed, due to the small thermal expansion coefficient of the carbon brush, it is easy to cause the brush to get stuck, resulting in unstable commutation of the motor; when the carbon brush is replaced, the replaced carbon brush together with the wires and connectors on the carbon brush They are all discarded together, which is not conducive to environmental protection and saving

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