Carbon brush structure of collecting ring

Abstract

The invention discloses a carbon brush structure of a collecting ring. The carbon brush structure comprises a base, two carbon brushes and two bias voltage pieces, wherein the base is provided with two guide rails; the two carbon brushes are arranged on the guide rails of the base respectively and can move along the guide rails; the two bias voltage pieces act on the two carbon brushes respectively, drive the two carbon brushes to move towards a conducting ring of the collecting ring and keep the two carbon brushes in contact with the conducting ring. The two guide rails pass through the circle center of the conducting ring, so that the carbon brushes are prevented from jumping and are worn uniformly.

Description

technical field [0001] The present invention relates to a collector ring, and more specifically refers to a carbon brush structure of a collector ring. Background technique [0002] The existing collector ring mainly has a rotatable mandrel, on which there are conductive rings and insulating rings, and a number of carbon brush modules, which surround the conductive rings and are electrically connected to the conductive rings. status. Power can be conducted to the rotating conductive ring through the carbon brush module. [0003] Figure 4 Show a kind of existing carbon brush module 50, it has a base 52, is fixed on a pole 54, two swing arms 56, pivotally connected to the two ends of this base 52, two carbon brushes 58, are respectively fixed on The inner side of the two swing arms 56 and a spring 60 are connected to the two swing arms 56 at both ends. Through the action of the spring 60 , the two carbon brushes 58 can be kept in contact with the conductive ring 62 . [0...

AI Technical Summary

Problems solved by technology

In this state, push the carbon brush 58 to make it press against the positive component force Fy of the surface of the conductive ring 62, and increase the tangential component force Fx, which will cause the carbon brush to jump when the conductive ring 62 rotates

When the carbon brush 58 jumps, the unfavorable situation of current instability and discharge will occur

Secondly, the carbon brush 58 is worn in an uneven state. When the thickness of the side with more wear is insufficient, the carbon brush needs to be replaced, even if the side with more wear still has a considerable thickness.

This creates a waste of material

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