CN103427302A

CN103427302A - Carbon brush for combination electric hammer

Info

Publication number: CN103427302A
Application number: CN2012101545073A
Authority: CN
Inventors: 盛李
Original assignee: HAIMEN HUALIAN CARBON INDUSTRY Co Ltd
Current assignee: HAIMEN HUALIAN CARBON INDUSTRY Co Ltd
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2013-12-04

Abstract

The invention discloses a carbon brush for a combination electric hammer. The carbon brush comprises a carbon brush head and a body. The carbon brush head is connected with the body through a wire, the body is a combination body formed by two carbon bodies which mutually adhere and are fixedly connected through an adhesion layer, the two carbon bodies are symmetric and abut against each other, the outer side of each carbon body is further provided with an arc-shaped groove, the arc-shaped grooves are longitudinally arranged respectively along the surfaces of the two carbon bodies, the body is provided with a cylindrical boss, a spring is sleeved outside the wire, one end of the spring is fixed at the bottom of the carbon brush head, and the other end of the spring wraps the cylindrical boss. The spring can compensate for abrasion of the contact surface of the carbon brush, part of heat is transmitted, heat of the body is dissipated timely, and the two carbon bodies which are symmetric and abut against each other are convenient to use, safe and reliable; abrasion abnormality of the carbon brush is avoided in an overload state through the arc-shaped grooves arranged on the outer sides of the carbon bodies, commutation stability of a motor is guaranteed, service lives of the carbon brush and the motor are prolonged, and maintenance cost is reduced.

Description

Combination electric hammer carbon brush

Technical field

The present invention relates to a kind of carbon brush, in particular for the carbon brush of electric hammer.

Background technology

The electric hammer carbon brush is the device of transferring energy or signal between the standing part of motor or generator or other rotating machineries and rotating part, it is generally that pure carbon adds coagulating agent and makes, external form is generally square, be stuck on metallic support, on top, there is wire to draw, in running up, the carbon brush conduction current, due to and electric hammer between CONTACT WITH FRICTION, make surface that heat occur to wear away and produce, heat can't shed in time, when the motor operating load is bigger than normal, the actual load of brush increases, easily cause the activity variation of brush in brush carrier, cause motor commutation unstable, even worsen and produce ring fire, burn brush and brush carrier, motor can't be worked.

Summary of the invention

The technical problem to be solved in the present invention be to provide a kind ofly can increase the service life, simple in structure, superior performance, can guarantee motor commutation stable the electric hammer carbon brush.

For addressing the above problem, the technical scheme that the present invention takes is: a kind of combination electric hammer carbon brush, comprise carbon brush head and body, the carbon brush head is connected with body by wire, body is left carbon body and right carbon body by adhesive layer bonding, the combination that is connected and fixed mutually, two carbon bodies are symmetrical and offset, the outside of every carbon body also is provided with arc groove, arc groove vertically arranges along two carbon surfaces respectively, body is provided with cylindrical boss, the wire overcoat has spring, and an end of spring is fixed on carbon brush head bottom, the other end parcel cylindrical boss of spring.

As a modification of the present invention, wire is copper core flexible cord, and described adhesive layer is the glue-line with the clean and adhesive function of self-insurance.

Adopt said structure, spring is as an elastic force apparatus, the spring handle carbon brush is pressed in rotating shaft, promoting the close contact that carbon brush moved and kept this carbon brush and this rotor, prevent the change of carbon brush position, linking springs can compensate the abrasion of the contact surface of carbon brush in addition, transmit a part of heat, the heat of body is distributed in time, increase the service life, two symmetrical and offset carbon body structures, easy to use, safe and reliable, can be under overload state by the arc groove arranged in the external side of carbon, prevent that wear of brush is abnormal, guarantee that motor commutation is stable, thereby increased the useful life of brush and motor, reduced maintenance cost.

The accompanying drawing explanation

Fig. 1 is structure chart of the present invention.

Fig. 2 is upward view of the present invention.

Embodiment

Below in conjunction with embodiment and accompanying drawing, the present invention will be further described.

This combination electric hammer carbon brush, comprise carbon brush head 1 and body 2, carbon brush head 1 is connected with body 2 by wire 4, wire 4 is copper core flexible cord, body 2 is that left carbon body 21 and right carbon body 22 are mutually bonding by adhesive layer 23, the assembly be connected and fixed, adhesive layer 23 is for having the glue-line of the clean and adhesive function of self-insurance, left carbon body 21 and right carbon body 22 is symmetrical and offset, the outside of left carbon body 21 and right carbon body 22 is respectively equipped with arc groove 5 and arc groove 6, arc groove 5 and arc groove 6 are respectively along left carbon body 21 and the 22 surface longitudinal settings of right carbon body, body 2 is provided with cylindrical boss 7, wire 4 overcoats have spring 3, one end of spring 3 is fixed on carbon brush head 1 bottom, the other end parcel cylindrical boss 7 of spring 3.Spring is as an elastic force apparatus, linking springs is pressed on carbon brush in rotating shaft, promoting the close contact that carbon brush moved and kept this carbon brush and this rotor, prevent the change of carbon brush position, linking springs can compensate the abrasion of the contact surface of carbon brush in addition, transmit a part of heat, the heat of body is distributed in time, increase the service life, two symmetrical and offset carbon body structures, easy to use, safe and reliable, can be under overload state by the arc groove arranged in the external side of carbon, prevent that wear of brush is abnormal, guarantee that motor commutation is stable, thereby increased the useful life of brush and motor, reduced maintenance cost.

Claims

1. a combination electric hammer carbon brush, comprise carbon brush head (1) and body (2), and carbon brush head (1) is by wire (4)

With body (2), be connected, it is characterized in that: body (2) is that left carbon body (21) and right carbon body (22) are mutually bonding by adhesive layer (23), the combination be connected and fixed, left carbon body (21) and right carbon body (22) are symmetrical and offset, left carbon body (21) outside is provided with arc groove (5), right carbon body (22) outside is provided with arc groove (6), arc groove (5) and arc groove (6) are respectively along left carbon body (21) and right carbon body (22) surface longitudinal setting, body (2) is provided with cylindrical boss (7), wire (4) overcoat has spring (3), one end of spring (3) is fixed on carbon brush head (1) bottom, the other end parcel cylindrical boss (7) of spring (3).

2. combination electric hammer carbon brush according to claim 1 is characterized in that: described adhesive layer (23) is for having the glue-line of the clean and adhesive function of self-insurance.

3. combination electric hammer carbon brush according to claim 1 and 2, it is characterized in that: described wire (4) is copper core flexible cord.