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Carbon brush for electric tool

A technology for electric tools and carbon brushes, applied in the field of carbon brushes for electric tools, can solve the problems of easy falling off and shortening the service life of carbon brushes, and achieve the effects of not easy falling off, huge vibration and long service life.

Inactive Publication Date: 2013-05-01
JIANGSU HUAYU CARBON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some carbon brushes have a simple structure, they are tightly pressed on the rotating shaft, due to the large vibration force generated by the mechanical rotation, they are easy to fall off, and the service life of the carbon brush is shortened

Method used

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  • Carbon brush for electric tool

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Such as figure 1 As shown, the carbon brush for electric tools of the present invention includes a carbon brush body 1, the shape of the carbon brush body 1 is a cuboid or a cube, and a wire 2 is drawn out of the carbon brush body 1, the wire 2 is a copper core flexible wire, and the end of the wire 2 Connected with the copper sheet 3, the outer periphery of the wire 2 is covered with a spring 4, one end of the spring 4 is fixed on the carbon brush body 1, and the other end of the spring 4 is fixed on the copper sheet 3.

[0012] The carbon brush body 1 is stuck on the metal bracket, and the outer periphery of the wire 2 is covered with a spring 4. The spring 4 presses it tightly on the rotating shaft. When the machine is working, it will generate huge vibrations, and it is not easy to fall off, and the service life is long.

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Abstract

The invention discloses a carbon brush for an electric tool. The carbon brush for the electric tool comprises a carbon brush body. A lead is led out from the inside of the carbon brush body; the tail end of the lead is connected with a copper sheet; a spring is sheathed at the periphery of the lead; one end of the spring is fixedly arranged on the carbon brush body; and the other end of the spring is fixedly arranged on the copper sheet. The carbon brush for the electric tool has the advantages that the carbon brush body is clamped on a metal support, the spring is sheathed at the periphery of the lead, and the lead is compressed on a revolving shaft by the spring, so that the carbon brush cannot easily fall off if huge vibration is generated when a machine works, and the carbon brush is long in service life.

Description

technical field [0001] The invention relates to a carbon brush, in particular to a carbon brush for an electric tool. Background technique [0002] A carbon brush is a device that transmits energy or signals between the fixed part and the rotating part of a motor or generator or other rotating machinery. It is generally made of pure carbon plus coagulant, and its shape is generally square, stuck on a metal bracket. Some carbon brushes are simple in structure, and they are tightly pressed on the rotating shaft. Due to the large vibration force generated by mechanical rotation, they are easy to fall off, and the service life of the carbon brushes becomes shorter. Therefore, it is necessary to provide a new technical solution to solve the above problems. Contents of the invention [0003] The purpose of the present invention is to provide a carbon brush for electric tools that is not easy to fall off and has a long service life. [0004] The technical scheme adopted in the ...

Claims

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Application Information

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IPC IPC(8): H01R39/26
Inventor 周兵
Owner JIANGSU HUAYU CARBON
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