CN220086596U - Copper brush frame convenient to change spare part - Google Patents

Abstract

The utility model discloses a copper brush holder convenient for replacing parts, which comprises a machine box, a rotating shaft arranged in the machine box, and a commutator arranged in the machine box and fixedly connected with the rotating shaft, wherein the copper brush holder comprises a brush box, a brush head is fixed in the brush box, one side of the brush head is connected with the commutator, the other side of the brush head is fixed with a spring, the other end of the spring is connected with a pressing block, a cover plate is clamped at a box opening of the brush box, one side of the cover plate is provided with a first clamping block clamped in the brush box, one side of the first clamping block, which is close to the commutator, is provided with a mounting groove, and the pressing block is clamped in the mounting groove; the top of the machine box is rotationally connected with a pressing bar, and the bottom of the pressing bar is flush with the top of the machine box; the brush box is limited by the machine box, and the clamping structures of the first clamping block, the brush box, the second clamping block, the brush box, the pressing block and the mounting groove are arranged to fix the connection relation between the brush box, the cover plate and the carbon brush, so that the mounting structure is convenient, the connection is tight, and the mounting and replacing efficiency is improved.

Description

Copper brush frame convenient to change spare part

Technical Field

The utility model relates to the field of motor brush holders, in particular to a copper brush holder convenient for replacing parts.

Background

The brush holder of the motor is used for applying pressure to the carbon brush which is in sliding contact with the surface of the commutator or the collector ring through the spring, so that the brush holder can stably conduct current between the fixed body and the rotating body. Both the brush holder and the carbon brush are very important components for the motor. No matter how good the characteristics of the carbon brush are, when the brush holder is unsuitable, the carbon brush cannot fully exert its excellent characteristics, and can bring about great influence on the performance and service life of the motor itself.

The carbon brush is easy to wear, so that the carbon brush needs to be replaced periodically, and the carbon brush and the brush frame are required to be connected stably and are convenient to detach. The existing portable equipment has high requirement on the replacement frequency of the carbon brush, and needs to be replaced at regular time, such as a small drilling tool. In the existing replacement process, because the bolts are more to replace, after the carbon brush is installed on the brush frame, the brush frame is installed at the rotating shaft, and the bolts are easily omitted in the installation process, so that the replacement efficiency of the carbon brush is lower.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a copper brush holder convenient for replacing parts.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a copper brush holder convenient to change spare part, includes the machine box, installs pivot in the machine box, install in the machine box and with pivot fixed connection's commutator, including the brush box, brush box internal fixation has the brush head, brush head one side is connected the commutator, the opposite side is fixed with the spring, the spring other end is connected with the briquetting, the box mouth department joint of brush box has the apron, apron one side is provided with the joint and is in the first fixture block in the brush box, one side that first fixture block is close to the commutator is equipped with the mounting groove, the briquetting joint is in the mounting groove; the top of the machine box is rotationally connected with a pressing bar, and the bottom of the pressing bar is flush with the top of the machine box; the brush box is fixed in the machine box.

Preferably, chamfer edges are arranged at two edges of the pressing block, which are close to one side of the cover plate.

Preferably, a buckle with a C-shaped section is arranged on one side of the machine box, and the pressing bar is rotationally clamped in the buckle.

Preferably, a second clamping block is arranged on the cover plate, a clamping groove is formed in the box opening of the brush box, and the second clamping block is clamped in the clamping groove.

Preferably, the two sides of the brush box are provided with mounting blocks which are clamped with the top of the machine box.

Preferably, a first wiring hole is formed in the brush box, and a second wiring hole which is correspondingly communicated with the first wiring hole is formed in the top of the machine box.

The beneficial effects of the utility model are as follows: firstly, the brush box is limited by adopting the machine box, and a clamping structure of a first clamping block, the brush box, a second clamping block, the brush box, a pressing block and a mounting groove is arranged for fixing the connection relation between the brush box, a cover plate and a carbon brush, so that the mounting structure is convenient, the connection is tight, and the mounting and replacing efficiency is improved; secondly, the pressing strip and the buckle structure are arranged, the position of the brush box is further fixed, the brush box is prevented from falling off, and the installation is convenient and quick.

Drawings

FIG. 1 is a top view of a mounting structure for a copper brush holder according to the present utility model;

FIG. 2 is a schematic view of a clamping structure of the pressing bar;

fig. 3 is a schematic view of the mounting structure of the cover plate and brush box.

Reference numerals in the drawings: the machine comprises a machine box 1, a rotating shaft 2, a commutator 3, a shaft seat 4, a brush box 5, a mounting block 6, a brush head 7, a spring 8, a pressing block 9, a cover plate 10, a first clamping block 11, a mounting groove 12, a chamfer edge 13, a first wiring hole 14, a second wiring hole 15, a pressing strip 16, a buckle 17, a second clamping block 18 and a clamping groove 19.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, a copper brush holder convenient for replacing parts comprises a machine box 1, a rotating shaft 2 installed in the machine box 1, and a commutator 3 installed in the machine box 1 and fixedly connected with the rotating shaft 2, wherein the copper brush holder comprises a brush box 5, a brush head 7 is fixed in the brush box 5, one side of the brush head 7 is connected with the commutator 3, the other side of the brush head is fixedly provided with a spring 8, the other end of the spring 8 is connected with a pressing block 9, a cover plate 10 is clamped at a box opening of the brush box 5, one side of the cover plate 10 is provided with a first clamping block 11 clamped in the brush box 5, one side of the first clamping block 11, which is close to the commutator 3, is provided with a mounting groove 12, and the pressing block 9 is clamped in the mounting groove 12; the top of the machine box 1 is rotationally connected with a pressing bar 16, and the bottom of the pressing bar 16 is flush with the top of the machine box 1; the brush box 5 is fixed in the machine box 1.

In this embodiment, the two edges of the pressing block 9, which are close to one side of the cover plate 10, are provided with chamfer edges 13.

In the embodiment, one side of the machine box 1 is provided with a buckle 17 with a C-shaped section, and the pressing bar 16 is rotationally clamped in the buckle 17.

In this embodiment, the cover plate 10 is provided with a second clamping block 18, the box opening of the brush box 5 is provided with a clamping groove 19, and the second clamping block 18 is clamped in the clamping groove 19.

In this embodiment, the two sides of the brush box 5 are provided with mounting blocks 6 which are clamped with the top of the machine box 1.

In this embodiment, the brush box 5 is provided with a first wiring hole 14, and the top of the machine box 1 is provided with a second wiring hole 15 correspondingly communicated with the first wiring hole 14.

Working principle: after the brush head 7 is correspondingly arranged in the brush box 5, the pressing block 9 is pressed into the mounting groove 12 by using the hole position of the brush box corresponding to the first clamping block 11, then the position of the cover plate 10 is rotated to enable the position of the second clamping block 18 to correspond to the clamping groove 19, clamping installation is completed, the cover plate 10 and the brush box 5 are pressed together, the brush box is placed into the corresponding groove position of the machine box 1, at the moment, under the action of the spring 8, the brush head 7 presses the commutator 3, and meanwhile, the pressing block 9 also presses the cover plate 10 on the box wall of the machine box 1, and the horizontal fixing of the brush box 5 is completed; on the basis, the pressing bar 16 is rotated to press the top of the brush box 5, the limit of the brush box 5 in the vertical direction is completed, two halves of the machine box 1 are pressed together, and only 2-3 screws corresponding to the machine box 1 are needed to be added from beginning to end.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a copper brush yoke convenient to change spare part, includes quick-witted box (1), installs pivot (2) in quick-witted box (1), install in quick-witted box (1) and with pivot (2) fixed connection's commutator (3), a serial communication port, including brush box (5), brush box (5) internal fixation has brush head (7), brush head (7) one side is connected commutator (3), the opposite side is fixed with spring (8), the spring (8) other end is connected with briquetting (9), the box mouth department joint of brush box (5) has apron (10), apron (10) one side is provided with joint first fixture block (11) in brush box (5), one side that first fixture block (11) are close to commutator (3) is equipped with mounting groove (12), briquetting (9) joint is in mounting groove (12); the top of the machine box (1) is rotationally connected with a pressing bar (16), and the bottom of the pressing bar (16) is flush with the top of the machine box (1); the brush box (5) is fixed in the machine box (1).

2. A copper brush holder for facilitating replacement of parts according to claim 1, wherein chamfer edges (13) are provided at both edges of the press block (9) near one side of the cover plate (10).

3. The copper brush holder convenient for replacing parts according to claim 1, wherein a buckle (17) with a C-shaped cross section is arranged on one side of the machine box (1), and the pressing bar (16) is rotationally clamped in the buckle (17).

4. The copper brush holder convenient for replacing parts according to claim 1, wherein a second clamping block (18) is arranged on the cover plate (10), a clamping groove (19) is arranged at a box opening of the brush box (5), and the second clamping block (18) is clamped in the clamping groove (19).

5. The copper brush holder convenient for replacing parts according to claim 1, wherein the two sides of the brush box (5) are provided with mounting blocks (6) which are clamped with the top of the machine box (1).

6. The copper brush holder convenient for replacing parts according to claim 1, wherein the brush box (5) is provided with a first wiring hole (14), and the top of the machine box (1) is provided with a second wiring hole (15) correspondingly communicated with the first wiring hole (14).