A combined brush holder assembly

Abstract

The invention discloses a combined brush holder assembly, belonging to the technical field of generators, comprising a handle, a wedge-shaped connecting plate, a brush and a brush box, and is characterized in that it further comprises an insulating sleeve, a transition joint and a connecting piece, and one end of the handle is Embedded in the insulating sleeve, an insulating baffle is arranged between the insulating sleeve and the wedge-shaped connecting plate, the transition joint penetrates the insulating baffle, one end of the transition joint is embedded in the insulating sleeve, the other end is embedded in the wedge-shaped connecting plate, and the handle is installed with a A shaft, a disc spring is installed on the shaft, one end of the disc spring is located in the insulating sleeve, the other end is located in the transition joint, one end of the connecting piece is detachably connected with the wedge-shaped connecting plate, and the other end is connected with a fixing plate, The brush box is connected to the fixed plate, and the limit plate is fixedly connected to the brush. The invention can reliably lock the movement of the electric brush, improve the reliability of the limit position of the electric brush, eliminate the potential safety hazard during the operation of the brush holder, and has strong applicability.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to a combined brush holder assembly. Background technique [0002] The brush holder is composed of a wedge-shaped connecting plate, a brush box, a handle, a shaft, a constant force spring and a brush holding mechanism. in the brush box. When working, the brush moves in the brush box under the action of the constant force spring and keeps in contact with the collector ring. [0003] The brush box and wedge-shaped connecting plate of the multi-connected brush box are manufactured by casting process and then assembled. Due to the complex structure of the brush box, there are a large number of thin-walled structures and the wall thickness varies greatly. The mold structure is complex and the processing cycle is long. The wedge-shaped connecting plate and the brush box of the single-hole brush holder mostly adopt an integral casting structure, the mold structure is complex, and the ...

AI Technical Summary

Problems solved by technology

[0005] The excitation combined brush holder for generators or motors disclosed in this patent document can solve the problem that the carbon brush fixing device cannot fix the carbon brushes well, easily damage the collector ring or block the carbon brushes in the running state.

However, the combination of different numbers of brush boxes cannot be realized, and the movement of the brushes cannot be reliably locked, resulting in potential safety hazards in the process of inserting and pulling out the brush holders

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