CN213636559U

CN213636559U - Carbon brush assembly

Info

Publication number: CN213636559U
Application number: CN202023200817.3U
Authority: CN
Inventors: 周佩佩; 李云勇; 李云剑; 吴初生; 李仕勇
Original assignee: Fujian Danuo New Material Technology Co ltd
Current assignee: Fujian Danuo New Material Technology Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-07-06
Anticipated expiration: 2030-12-26

Abstract

The utility model relates to a carbon brush component, which comprises a fixed seat and a carbon brush body, wherein a placing groove is arranged in the fixed seat, one end of the placing groove is provided with a through hole, an extrusion spring is also arranged in the placing groove, the other side of the placing groove opposite to the through hole is provided with a movable plate, the movable plate is provided with a driving rod, the movable plate is provided with an installation channel corresponding to the driving rod, an outlet is arranged at one side of the mounting channel corresponding to the placing groove, a positioning rod is arranged at one end of the driving rod corresponding to the outlet, the positioning rod is sleeved with a spring, the placing groove is provided with a plurality of grooves, one side of the driving rod is provided with an elastic piece, the movable plate is provided with a first operation hole which is matched with the elastic piece and used for fixing the positioning rod and the groove in a fixed state and a second operation hole used for fixing the positioning rod and the groove in a separated state. The utility model discloses technical scheme has simple structure, stable and the convenient technological effect of replacement.

Description

Carbon brush assembly

Technical Field

The utility model belongs to the technical field of the technique of carbon brush and specifically relates to a carbon brush subassembly.

Background

Carbon brushes, also called brushes, are widely used as a sliding contact in many electrical devices. The carbon brush mainly comprises graphite, impregnated graphite and metal (copper and silver) graphite in product application. Carbon brushes are devices that transmit power or signals between a stationary and a rotating part of an electric motor or generator or other rotating machinery.

Carbon brush among the prior art sets up in the fixed slot to through the extrusion spring that sets up in the fixing base, make it tightly press and paste on the rotor, along with the wearing and tearing of carbon brush, through the elasticity effect of extrusion spring, make carbon brush and motor rotor still keep the state of tightly pressing and pasting, nevertheless when the carbon brush is used up, just can change the carbon brush after need dismantling other parts such as rotor, if can not in time change the carbon brush in addition, then the extrusion spring can be direct and rotor contact, produces the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Based on the problem, the utility model provides a simple structure, stability and replacement convenient carbon brush subassembly.

In order to achieve the above purpose, the utility model provides a following technical scheme: a carbon brush assembly comprises a fixed seat and a carbon brush body, wherein a placing groove is arranged in the fixed seat, a through hole is formed in one end of the placing groove, one end of the carbon brush body extends out of the placing groove along the direction of the through hole, an extrusion spring is further arranged in the placing groove, one end of the extrusion spring is abutted against the carbon brush body, a movable plate is arranged on the other side of the placing groove relative to the through hole, the extrusion spring is arranged on the inner side of the movable plate, a driving rod is arranged on the movable plate, an installation channel is arranged on the position, corresponding to the driving rod, of the movable plate, an outlet is arranged on one side of the installation channel corresponding to the placing groove, one end, corresponding to the outlet, of the driving rod is arranged in the installation channel, a positioning rod is, the elastic piece is arranged on one side of the driving rod, a first operation hole matched with the elastic piece and used for fixing the positioning rod and the groove in a fixed state and a second operation hole used for fixing the positioning rod and the groove in a separated state are formed in the movable plate, when the driving rod is pressed, the elastic piece is separated from the second operation hole and moved to be placed into the first operation hole, the positioning rod is fixed with the groove, and when the elastic piece is pressed, the elastic piece is separated from the first operation hole and moved to be placed into the second operation hole, the positioning rod is separated from the groove.

By adopting the technical scheme, the arrangement of the first operation hole and the second operation hole ensures that when the driving rod is pressed, the positioning rod arranged at the bottom of the driving rod and the spring sleeved outside the positioning rod are compressed by pressing the driving rod, so that the elastic piece at one end of the driving rod is separated from the position of the second operation hole and moves along the direction of the first operation hole, when the elastic piece moves to the position of the first operation hole, the end part of the elastic piece is matched and fixed with the first operation hole, at the moment, the movable plate is matched and fixed with the groove on the placing groove through one end of the fixing rod, when the positioning rod is separated from the groove, the elastic piece arranged in the first operation hole is pressed into the installation channel through manual operation of an operator, at the moment, the spring sleeved outside the positioning rod is released, and the elastic piece is reset and arranged in the position of the second operation hole and matched with the second operation hole, make the locating lever break away from in the recess, the fly leaf is portable this moment, when the carbon brush body needs to be replaced, through breaking away from locating lever and recess mutually, makes the fly leaf can move carbon brush body direction dorsad, and then realizes the replacement to the carbon brush body to when the carbon brush body is consumed by wearing and tearing gradually, the tight effect of supporting of extrusion spring reduces the back, can remove the fly leaf and move forward, makes the fly leaf remove and promotes the extrusion spring and move, makes the extrusion spring more be close to the carbon brush body, can support tightly and fix the fly leaf position to the carbon brush body after wearing and tearing, makes the position of the fly leaf after adjusting more stable.

The utility model discloses further set up: the other end of the driving rod, which is opposite to the positioning rod, is provided with an operation part, and the surface of the operation part is provided with anti-skid grains.

Through adopting above-mentioned technical scheme, the setting of operation portion for when pressing the actuating lever, increased operating area, when making to press the operation actuating lever, it is more laborsaving, and the setting of the anti-skidding line on operation portion surface makes when pressing the operation, and difficult skidding.

The utility model discloses further set up: the placing groove is provided with a sliding block, and the movable plate is provided with a sliding groove matched with the sliding block in a position corresponding to the sliding block.

By adopting the technical scheme, the arrangement of the sliding block and the sliding groove enables the sliding plate to move more conveniently and stably along the arrangement direction of the sliding block through the sliding groove when the position of the movable plate is adjusted, the groove is preferably arranged on the sliding block, the outlet of the installation channel is arranged on the sliding groove and corresponds to the position of the groove, so that when the movable plate moves, the position of the groove always corresponds to the position of the outlet of the installation channel, and when the movable plate and the groove are connected and fixed, the position is accurate.

The utility model discloses further set up: a gap is arranged between the elastic piece and the driving rod.

Through adopting above-mentioned technical scheme, the setting in clearance makes when the elastic component is put into second operation hole position or is put into first operation hole position from second operation hole position from first operation hole, plays the cushioning effect for when putting into or breaking away from first operation hole or second operation hole position, it is more smooth and easy, and improved the life of elastic component.

The utility model discloses further set up: the carbon brush body comprises a friction part and an isolation part, the friction part is arranged on the other side, opposite to the extrusion spring, of the isolation part, and the length of the isolation part is larger than the inner diameter of the through hole.

Through adopting above-mentioned technical scheme, when the friction portion of carbon brush body consumes to complete gradually, the isolation portion and the length of isolation portion is greater than the setting of the internal diameter of through-hole can prevent that extrusion spring from wearing out the through-hole position and rotor contact, causes the damage to the rotor.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

FIG. 2 is an enlarged view of the portion A of FIG. 1;

FIG. 3 is a partial block diagram of an embodiment of the present invention;

the reference numbers in the figures mean: 1-fixed seat, 2-carbon brush body, 201-friction part, 202-isolation part, 3-placement groove, 4-through hole, 24-movable plate, 25-extrusion spring, 26-driving rod, 27-installation channel, 28-outlet, 29-positioning rod, 30-spring, 31-groove, 32-elastic piece, 33-first operation hole, 34-second operation hole, 35-operation part, 36-anti-slip pattern, 37-sliding block, 38-sliding groove and 39-gap.

Detailed Description

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Referring to fig. 1-3, the carbon brush assembly disclosed in the present invention comprises a fixing base 1 and a carbon brush body 2, wherein a placement groove 3 is provided in the fixing base 1, a through hole 4 is provided at one end of the placement groove 3, one end of the carbon brush body 2 extends out of the placement groove 3 along the direction of the through hole 4, an extrusion spring 25 is further provided in the placement groove 3, one end of the extrusion spring 25 abuts against the carbon brush body 2, a movable plate 24 is provided at the other side of the placement groove 3 opposite to the through hole 4, an extrusion spring 25 is provided inside the movable plate 24, one end of the extrusion spring 25 abuts against the carbon brush body 2, a driving rod 26 is provided on the movable plate 24, an installation channel 27 is provided at the position of the movable plate 24 corresponding to the driving rod 26, an outlet 28 is provided at one side of the installation channel 27 corresponding to the placement groove 3, the driving rod 26 is provided with a positioning rod 29 corresponding to one end of the outlet 28, a spring 30 is sleeved outside the positioning rod 29, the placing groove 3 is provided with a plurality of grooves 31 matched with the positioning rod 29, one side of the driving rod 26 is provided with an elastic piece 32, the movable plate 24 is provided with a first operation hole 33 matched with the elastic piece 32 and used for fixing the positioning rod 29 and the groove 31 in a fixed state and a second operation hole 34 used for fixing the positioning rod 29 and the groove 31 in a separated state, when the driving rod 26 is pressed to enable the elastic piece 32 to be separated from the second operation hole 34 and to be movably placed into the first operation hole 33, the positioning rod 29 is fixed with the groove 31, and when the elastic piece 32 is pressed to enable the elastic piece to be separated from the first operation hole 33 and to be movably placed into the second operation hole 34, the positioning rod 29 is separated from the groove 31. The first operation hole 33 and the second operation hole 34 are arranged such that when the driving rod 26 is pressed, the positioning rod 29 disposed at the bottom of the driving rod 26 and the spring 30 sleeved outside the positioning rod 29 are compressed by pressing the driving rod 26, the elastic member 32 at one end of the driving rod 26 is separated from the position of the second operation hole 34 and moves along the direction of the first operation hole 33, when the driving rod moves to the position of the first operation hole 33, the end of the elastic member 32 is engaged and fixed with the first operation hole 33, at this time, the movable plate 24 is engaged and fixed with the groove 31 on the placement groove 3 through one end of the fixing rod, when the positioning rod 29 is separated from the groove 31, the elastic member 32 placed in the first operation hole 33 is pressed into the installation channel 27 through manual operation of an operator, at this time, the spring 30 sleeved outside the positioning rod 29 is released, the elastic member 32 is reset into the position of the second operation hole 34 and engages with the second operation hole 34, the positioning rod 29 is separated from the groove 31, the movable plate 24 can move at the moment, when the carbon brush body 2 needs to be replaced, the positioning rod 29 is separated from the groove 31, the movable plate 24 can move back to the direction of the carbon brush body 2, the carbon brush body 2 is replaced, when the carbon brush body 2 is gradually worn and consumed, after the abutting effect of the extrusion spring 25 is reduced, the movable plate 24 can be moved forward, the movable plate 24 is moved to push the extrusion spring 25 to move, the extrusion spring 25 is closer to the carbon brush body 2, the carbon brush body 2 after being worn can be abutted tightly and the position of the movable plate 24 can be fixed, and the position of the adjusted movable plate 24 is more stable.

The embodiment further provides that: the other end of the driving rod 26 opposite to the positioning rod 29 is provided with an operating part 35, and the surface of the operating part 35 is provided with anti-skid grains 36. The arrangement of the operation portion 35 increases the operation area when the driving rod 26 is pressed, so that the driving rod 26 is more labor-saving when the driving rod is pressed, and the anti-slip pattern 36 on the surface of the operation portion 35 is arranged, so that the driving rod is not easy to slip when the driving rod is pressed.

The embodiment further provides that: the placing groove 3 is provided with a sliding block 37, and the movable plate 24 is provided with a sliding groove 38 matched with the sliding block 37 at a position corresponding to the sliding block 37. The slide block 37 and the slide groove 38 are arranged so that when the position of the movable plate 24 is adjusted, the slide plate can move more conveniently and stably along the arrangement direction of the slide block 37 through the slide groove 38, and the groove 31 is preferably arranged on the slide block 37, the outlet 28 of the mounting channel 27 is arranged on the slide groove 38 and corresponds to the position of the groove 31, so that when the movable plate 24 moves, the position of the groove 31 always corresponds to the position of the outlet 28 of the mounting channel 27, and when the movable plate 24 is connected and fixed, the position is accurate.

The embodiment further provides that: a gap 39 is provided between the resilient member 32 and the drive rod 26. The gap 39 is provided to play a role of buffering when the elastic member 32 is placed into the second operation hole 34 from the first operation hole 33 or placed into the first operation hole 33 from the second operation hole 34, so that the elastic member is placed into or separated from the first operation hole 33 or the second operation hole 34 more smoothly, and the service life of the elastic member 32 is prolonged.

The embodiment further provides that: the carbon brush body 2 comprises a friction part 401 and a separation part 202, wherein the friction part 401 is arranged on the other side of the separation part 202 relative to the extrusion spring 25, and the length of the separation part 202 is larger than the inner diameter of the through hole 4. When the friction part 401 of the carbon brush body 2 is gradually consumed to be complete, the length of the isolation part 202 and the length of the isolation part 202 are larger than the inner diameter of the through hole 4, so that the extrusion spring 25 can be prevented from penetrating out of the through hole 4 to contact with the rotor, and damage to the rotor can be prevented.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a carbon brush subassembly, includes fixing base and carbon brush body, be provided with the standing groove in the fixing base, standing groove one end is provided with the through-hole, carbon brush body one end is stretched out the standing groove position along the through-hole direction, still be provided with the extrusion spring in the standing groove, extrusion spring one end is contradicted its characterized in that with the carbon brush body: the other side of the placing groove opposite to the through hole is provided with a movable plate, the extrusion spring is arranged on the inner side of the movable plate, the movable plate is provided with a driving rod, the movable plate is provided with an installation channel corresponding to the position of the driving rod, one side of the installation channel corresponding to the placing groove is provided with an outlet, one end of the driving rod corresponding to the outlet is arranged in the installation channel, one end of the driving rod corresponding to the outlet is provided with a positioning rod, the positioning rod is sleeved with a spring, the placing groove is provided with a plurality of grooves matched with the positioning rod, one side of the driving rod is provided with an elastic piece, the movable plate is provided with a first operation hole matched with the elastic piece and used for fixing the positioning rod in a fixed state with the grooves and a second operation hole used for fixing the positioning rod in a separated state with the grooves, when, the positioning rod is fixed with the groove, and when the elastic piece is pressed to be separated from the first operation hole and movably placed into the second operation hole, the positioning rod is separated from the groove.

2. The carbon brush assembly according to claim 1, wherein: the other end of the driving rod, which is opposite to the positioning rod, is provided with an operation part, and the surface of the operation part is provided with anti-skid grains.

3. The carbon brush assembly according to claim 1, wherein: the placing groove is provided with a sliding block, and the movable plate is provided with a sliding groove matched with the sliding block in a position corresponding to the sliding block.

4. The carbon brush assembly according to claim 1, wherein: a gap is arranged between the elastic piece and the driving rod.

5. The carbon brush assembly according to claim 1, wherein: the carbon brush body comprises a friction part and an isolation part, the friction part is arranged on the other side, opposite to the extrusion spring, of the isolation part, and the length of the isolation part is larger than the inner diameter of the through hole.