CN202586045U

CN202586045U - Carbon brush for combination electric hammer

Info

Publication number: CN202586045U
Application number: CN 201220223791
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: 2012-12-05
Anticipated expiration: 2022-05-18

Abstract

The utility model discloses a carbon brush for a combination electric hammer. The carbon brush comprises a carbon brush head and a body, wherein the carbon brush head is connected with the body through a lead. The body is a combination body which is formed by mutually bonding and fixedly connecting two carbon bodies through a bonding layer, the two carbon bodies are symmetrical and abut against each other, and an arc-shaped groove is arranged outside each carbon body along the longitudinal direction of the surface of the carbon body. A cylindrical boss is arranged on the body, a spring is sleeved outside the lead, 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 abrasion of the contact surface of the carbon brush and transmit part of heat to enable the heat of the body to be dissipated out timely. The two carbon bodies which are symmetrical and abut against each other are convenient to use, safe and reliable. By means of the arc-shaped grooves arranged outside the carbon bodies, abnormal abrasion of the electric brush can be avoided under the overload state, and reversing stability of a motor is ensured. Therefore, the service life of the electric brush and the motor is prolonged, and maintenance cost is reduced.

Description

The combination electric hammer is used carbon brush

Technical field

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

Background technology

Electric hammer is the device that transmits energy or signal between standing part and the rotating part of motor or generator or other rotating machineries with carbon brush, and it generally is that pure carbon adds coagulating agent and processes, and external form generally is a square, is stuck on the metallic support; Have lead to draw on the top, in running up, the carbon brush conduction current because and electric hammer between CONTACT WITH FRICTION; Make the surface that abrasion and generation heat take place, heat can't in time shed, when the motor operating load is bigger than normal; The actual load of brush increases, and causes the activity variation of brush in brush carrier easily, causes motor commutation unstable; Even worsen and produce ring fire, burn brush and brush carrier, make the motor can't operate as normal.

The utility model content

The technical problem that the utility model will solve provide a kind ofly can increase the service life, simple in structure, superior performance, can guarantee motor commutation stable electric hammer use carbon brush.

For addressing the above problem, the technical scheme that the utility model is taked is: a kind of combination electric hammer is used carbon brush, comprises carbon brush head and body; The carbon brush head is connected with body through lead, body be left carbon body bonding each other with right carbon body through adhesive layer, be connected fixed combination, two carbon bodies are symmetrical and offset; The outside of every carbon body also is provided with arc groove; Arc groove vertically is provided with along two carbon surfaces respectively, and body is provided with cylindrical boss, and lead is with spring outward; One end of spring is fixed on carbon brush head bottom, the other end parcel cylindrical boss of spring.

As a kind of improvement of the utility model, lead is a copper core flexible cord, and described adhesive layer is the glue-line with self-insurance cleaning and adhesive function.

Adopt said structure, spring is as an elastic force apparatus, and the spring handle carbon brush is pressed in the rotating shaft, is promoting carbon brush and is moving and keep this carbon brush to contact with the close of this rotor; Prevent the change of carbon brush position, connect the abrasion that spring can compensate the contact surface of carbon brush in addition, transmit a part of heat; The heat of body is in time distributed, increase the service life, symmetry and two carbon body structures that offset; Esy to use, safe and reliable, can under overload state, prevent that wear of brush is unusual through the arc groove that is provided with in the external side of carbon; Guarantee that motor commutation is stable, thereby increased the useful life of brush and motor, reduced maintenance cost.

Description of drawings

Fig. 1 is the structure chart of the utility model.

Fig. 2 is the upward view of the utility model.

Embodiment

Below in conjunction with embodiment and accompanying drawing the utility model is further specified.

This combination electric hammer is used carbon brush, comprises carbon brush head 1 and body 2, and carbon brush head 1 is connected with body 2 through lead 4; Lead 4 is a copper core flexible cord; Body 2 be left carbon body 21 bonding each other with right carbon body 22 through adhesive layer 23, be connected the fixed combination body, the glue-line of adhesive layer 23 for having self-insurance cleaning and adhesive function, left carbon body 21 and right carbon body 22 are symmetrical and offset; The outside of left side 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 left carbon body 21 in edge and right carbon body 22 surface longitudinal settings respectively, body 2 is provided with cylindrical boss 7, the lead 4 outer springs 3 that are with; 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, connects the spring handle carbon brush and is pressed in the rotating shaft, promoting carbon brush and moving and keep this carbon brush to contact with the close of this rotor; Prevent the change of carbon brush position, connect the abrasion that spring can compensate the contact surface of carbon brush in addition, transmit a part of heat; The heat of body is in time distributed, increase the service life, symmetry and two carbon body structures that offset; Esy to use, safe and reliable, can under overload state, prevent that wear of brush is unusual through the arc groove that is provided with in the external side of carbon; Guarantee that motor commutation is stable, thereby increased the useful life of brush and motor, reduced maintenance cost.

Claims

1. a combination electric hammer is used carbon brush; Comprise carbon brush head (1) and body (2), carbon brush head (1) is connected with body (2) through lead (4), it is characterized in that: body (2) be left carbon body (21) bonding each other with right carbon body (22) through adhesive layer (23), be connected fixed combination; A left side carbon body (21) and right carbon body (22) are symmetrical and offset; Left side carbon body (21) outside is provided with arc groove (5), and right carbon body (22) outside is provided with arc groove (6), and 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); The outer spring (3) that is with of lead (4), an 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 according to claim 1 is used carbon brush, it is characterized in that: the glue-line of described adhesive layer (23) for having self-insurance cleaning and adhesive function.

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