CN215008869U - Carbon brush holder - Google Patents

Abstract

The utility model discloses a carbon brush holder, including the fixed plate that has two at least locating holes, fixed mounting has first brush yoke subassembly and second brush yoke subassembly on the fixed plate, first brush yoke subassembly with second brush yoke subassembly is the contained angle setting, first brush yoke subassembly and second brush yoke subassembly have two at least beryllium bronze brush holders respectively, the one end installation carbon brush of fixed plate is kept away from to the beryllium bronze brush holder. According to the carbon brush holder, the carbon brush is stabilized through a high-temperature brazing process, and the risk of offset of a product after long-term operation or vibration is reduced in the process of realizing contact friction contact between the carbon brush and the slip ring groove.

Description

Carbon brush holder

Technical Field

The utility model relates to the technical field of motors, specifically a carbon brush frame.

Background

The brush holder structure is an important component of the motor, and functions to apply pressure to the carbon brush, which is in sliding contact with the surface of the slip ring, through the spring, so that the carbon brush stably conducts current between the stationary body and the rotating body. In the industrial technology field, current carbon brush holder generally sets up in the elastic construction in the middle of the supporting component including dismantling brush holder seat and brush holder briquetting and connection, then fixed mounting, and there is the product in this structure to work for a long time in the great environment of vibration the risk that operation or vibration back skew appear, and the effect of flow equalizing is relatively poor in the course of the work simultaneously, so need to wait to design a carbon brush holder urgently, satisfy above requirement.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a carbon brush frame has solved current carbon brush frame long-term running or has the skew after the vibration, the poor problem of effect flow equalizes.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a carbon brush holder, is including the fixed plate that has two at least locating holes, fixed mounting has first brush yoke subassembly and second brush yoke subassembly on the fixed plate, first brush yoke subassembly with second brush yoke subassembly is the contained angle setting, first brush yoke subassembly and second brush yoke subassembly have at least two sets of beryllium bronze brush yoke respectively, the one end installation carbon brush of fixed plate is kept away from to the beryllium bronze brush yoke.

Preferably, the first brush holder assembly comprises a first beryllium bronze brush holder and a second beryllium bronze brush holder, the length of the first beryllium bronze brush holder is smaller than that of the second beryllium bronze brush holder, one end of the first beryllium bronze brush holder and one end of the second beryllium bronze brush holder are welded and fixed with the fixing plate, the other end of the first beryllium bronze brush holder and the other end of the second beryllium bronze brush holder are respectively provided with a first carbon brush and a second carbon brush, the first carbon brush and the second carbon brush are identical relative to a first arc radius and a second arc radius of the center of the slip ring, and the first carbon brush and the second carbon brush are arranged adjacently.

Preferably, the second brush holder assembly comprises a third beryllium bronze brush holder and a fourth beryllium bronze brush holder, the third beryllium bronze brush holder is shorter than the fourth beryllium bronze brush holder, one end of the third beryllium bronze brush holder and one end of the fourth beryllium bronze brush holder are welded and fixed to the fixing plate, the other end of the third beryllium bronze brush holder and the other end of the fourth beryllium bronze brush holder are respectively provided with a third carbon brush and a fourth carbon brush, the third carbon brush and the fourth carbon brush are identical to each other relative to a third arc radius and a fourth arc radius of the center of the slip ring, and the third carbon brush and the fourth carbon brush are arranged adjacently.

Preferably, the carbon brush is a sheet-shaped body with a preset shape, a groove matched with a beryllium bronze wire on the beryllium bronze brush holder is formed in one side of the sheet-shaped body, the beryllium bronze wire is connected with the carbon brush groove in a welding mode, and the carbon brush is fixedly arranged in the U-shaped cover plate.

Preferably, the U-shaped cover plate is provided with at least one mounting pin hole.

Preferably, each group of beryllium bronze brush holders consists of at least 5 beryllium bronze wires.

The utility model discloses possess following beneficial effect:

1. the double holes are formed in the fixing plate to be positioned with the equipment, so that the stability of the whole equipment in the working process is improved, and the risk of deviation of the product after long-term operation or vibration is reduced;

2. the U-shaped cover plate stabilizes the carbon brush through a high-temperature brazing process, and achieves the purpose of current transmission in the process of realizing the frictional contact between the carbon brush and the slip ring groove;

3. the current equalizing effect is good: the beryllium bronze wire has high elasticity through a special heat treatment process, the elasticity is not easy to attenuate, pressure with stable size is provided for the carbon brushes, each carbon brush is independently stressed and independently transmits current, when the slip ring rotates anticlockwise and rotates clockwise frequently to exchange power generation systems with special structures, the carbon brushes on two sides are uniformly stressed and independently output current, the heat dissipation problem is effectively solved, meanwhile, the carbon brushes can automatically set the circle center, the number of the carbon brushes is large for the high-power slip ring, and the current equalizing effect is better.

Drawings

FIG. 1 is a schematic structural view of a carbon brush holder according to the present invention;

FIG. 2 is a front view of a U-shaped cover plate of a carbon brush holder according to the present invention;

FIG. 3 is a side view of a U-shaped cover plate of a carbon brush holder according to the present invention;

FIG. 4 is a front view of a beryllium bronze wire of a carbon brush holder according to the present invention;

fig. 5 is a schematic view of a carbon brush structure of a carbon brush holder according to the present invention;

fig. 6 is a top view of a fixing plate structure of a carbon brush holder according to the present invention.

In the figure: 1. a fixing plate; 2. a first brush holder assembly; 21. a first beryllium bronze brush holder; 22. a second beryllium bronze brush holder; 3. a second brush holder assembly; 31. a third beryllium bronze brush holder; 32. a fourth beryllium bronze brush holder; 4. a U-shaped cover plate; 5. a carbon brush; 6. a beryllium bronze wire; 7. a beryllium bronze brush holder; 51. a first carbon brush; 52. a second carbon brush; 61. a third carbon brush; 62. a fourth carbon brush; 11. and (7) positioning the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a carbon brush holder, is including the fixed plate 1 that has two locating holes 11, fixed mounting has first brush yoke subassembly 2 and second brush yoke subassembly 3 on the fixed plate 1, first brush yoke subassembly 2 with second brush yoke subassembly 3 is the contained angle setting, first brush yoke subassembly 2 and second brush yoke subassembly 3 have at least two sets of beryllium bronze brush yoke 7 respectively, beryllium bronze brush yoke 7 keeps away from the one end installation carbon brush 5 of fixed plate 1.

The device is connected with equipment in a positioning way through the double holes 11 on the fixed plate 1, the fixed plate 1 is formed by machining of a machine tool, and the double holes are used for positioning, so that the risk of offset of a product after long-term operation or vibration can be reduced; the beryllium bronze brush holder is formed by long and short beryllium bronze wires, the manufacturing process is formed by molding a hardware die, the long and short beryllium bronze wires have the elastic stress function and the electric conduction function, the beryllium bronze brush provides enough pressure for the carbon brush, and the carbon brush is in contact and frictional contact with the slip ring groove to achieve the purpose of transmitting current.

In a preferred embodiment, the first brush holder assembly 2 includes a first beryllium bronze brush holder 21 and a second beryllium bronze brush holder 22, the length of the first beryllium bronze brush holder 21 is smaller than that of the second beryllium bronze brush holder 21, one end of the first beryllium bronze brush holder 21 and one end of the second beryllium bronze brush holder 22 are welded and fixed to the fixing plate, the other end of the first beryllium bronze brush holder 21 and the other end of the second beryllium bronze brush holder 22 are respectively provided with a first carbon brush 51 and a second carbon brush 52, the first arc radius and the second arc radius of the first carbon brush 51 and the second carbon brush 52 relative to the center of the slip ring are the same, and the first carbon brush 51 and the second carbon brush 52 are adjacently arranged.

The second brush holder assembly 3 comprises a third beryllium bronze brush holder 31 and a fourth beryllium bronze brush holder 32, the length of the third beryllium bronze brush holder 31 is smaller than that of the fourth beryllium bronze brush holder 32, one end of each of the third beryllium bronze brush holder 31 and the fourth beryllium bronze brush holder 32 is welded and fixed with the fixing plate 1, the other end of each of the third beryllium bronze brush holder 31 and the fourth beryllium bronze brush holder 32 is respectively provided with a third carbon brush 61 and a fourth carbon brush 62, the third arc radius and the fourth arc radius of the third carbon brush 61 and the fourth carbon brush 62 relative to the center of the slip ring are the same, and the third carbon brush 61 and the fourth carbon brush 62 are arranged adjacently.

In the device, each carbon brush is independently stressed and independently transmits current, when the slip ring rotates anticlockwise and rotates clockwise to frequently exchange power generation systems with special structures, the carbon brushes on the two sides are uniformly stressed and independently output current, so that the heat dissipation problem is effectively solved, and meanwhile, the carbon brushes can self-determine the circle center due to the structural arrangement of the beryllium bronze wires; for a high-power slip ring, the number of the carbon brushes is increased, each carbon brush can uniformly cut magnetic lines formed by a magnetic field, the current distribution difference generated when each carbon brush cuts the magnetic lines is small, and the current distribution balancing effect is better.

The carbon brush 5 is a sheet-shaped body with a preset shape, one side of the sheet-shaped body is provided with a groove matched with the beryllium bronze wire 6 on the beryllium bronze brush holder, the beryllium bronze wire 6 is in groove welding connection with the carbon brush 5, and the carbon brush is fixedly arranged in the U-shaped cover plate 4. The U-shaped cover plate 4 is provided with 3 mounting pin holes; each group of beryllium bronze brush holder 7 is composed of 5 beryllium bronze wires, that is, 5 carbon brushes are installed on each group of beryllium bronze brush holder, so the carbon brush holder provided in the embodiment is composed of 20 beryllium bronze wires, and 20 carbon brushes.

The U-shaped cover plate stabilizes the carbon brushes through a high-temperature brazing process, so that force is uniformly transmitted to the carbon brushes at two sides, the risk of deviation of a product after long-term operation or vibration is reduced, the beryllium bronze wire has the functions of elastic stress and electric conduction, and the U-shaped cover plate is simple in structure and low in cost.

The utility model discloses possess following beneficial effect:

the double holes are formed in the fixing plate to be positioned with the equipment, so that the stability of the whole equipment in the working process is improved, and the risk of deviation of the product after long-term operation or vibration is reduced; the U-shaped cover plate stabilizes the carbon brush through a high-temperature brazing process, and achieves the purpose of current transmission in the process of realizing the frictional contact between the carbon brush and the slip ring groove; the current equalizing effect is good: the beryllium bronze wire has high elasticity through a special heat treatment process, the elasticity is not easy to attenuate, pressure with stable size is provided for the carbon brushes, each carbon brush is independently stressed and independently transmits current, when the slip ring rotates anticlockwise and rotates clockwise frequently to exchange power generation systems with special structures, the carbon brushes on two sides are uniformly stressed and independently output current, the heat dissipation problem is effectively solved, meanwhile, the carbon brushes can automatically set the circle center, the number of the carbon brushes is large for the high-power slip ring, and the current equalizing effect is better.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The carbon brush holder is characterized by comprising a fixing plate with at least two positioning holes, wherein a first brush holder assembly and a second brush holder assembly are fixedly mounted on the fixing plate, the first brush holder assembly and the second brush holder assembly are arranged at included angles, the first brush holder assembly and the second brush holder assembly are respectively provided with at least two groups of beryllium bronze brush holders, and one end, far away from the fixing plate, of each beryllium bronze brush holder is provided with a carbon brush.

2. The carbon brush holder according to claim 1, wherein the first brush holder assembly comprises a first beryllium bronze brush holder and a second beryllium bronze brush holder, the first beryllium bronze brush holder is shorter than the second beryllium bronze brush holder, one end of the first beryllium bronze brush holder and one end of the second beryllium bronze brush holder are welded and fixed to the fixing plate, the other end of the first beryllium bronze brush holder and the other end of the second beryllium bronze brush holder are respectively provided with a first carbon brush and a second carbon brush, the first carbon brush and the second carbon brush are identical relative to a first arc radius and a second arc radius of the center of the slip ring, and the first carbon brush and the second carbon brush are arranged adjacently.

3. The carbon brush holder according to claim 1, wherein the second brush holder assembly comprises a third beryllium bronze brush holder and a fourth beryllium bronze brush holder, the third beryllium bronze brush holder is shorter than the fourth beryllium bronze brush holder, one end of each of the third beryllium bronze brush holder and the fourth beryllium bronze brush holder is welded and fixed to the fixing plate, a third carbon brush and a fourth carbon brush are respectively mounted at the other end of each of the third beryllium bronze brush holder and the fourth beryllium bronze brush holder, the third carbon brush and the fourth carbon brush are identical with respect to a third arc radius and a fourth arc radius of the center of the slip ring, and the third carbon brush and the fourth carbon brush are adjacently arranged.

4. The carbon brush holder according to claim 1, wherein the carbon brush is a sheet-shaped body with a preset shape, a groove matched with a beryllium bronze wire on the beryllium bronze brush holder is formed in one side of the sheet-shaped body, the beryllium bronze wire is connected with the carbon brush groove in a welding mode, and the carbon brush is fixedly arranged in the U-shaped cover plate.

5. A carbon brush holder according to claim 4, wherein said U-shaped cover plate defines at least one mounting pin hole.

6. A carbon brush holder according to claim 1, wherein each set of said beryllium bronze brush holders consists of at least 5 beryllium bronze wires.

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