CN212587833U

CN212587833U - Motor and brush structure thereof

Info

Publication number: CN212587833U
Application number: CN202022181398.7U
Authority: CN
Inventors: 黄湘兰; 范丹; 黄圣涛; 洪雷; 张瑞安; 郭冬伟; 杨财水; 桂剑峰
Original assignee: GAC Honda Automobile Co Ltd
Current assignee: GAC Honda Automobile Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-02-23
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to a brush technical field discloses a motor and brush structure thereof, and its brush structure includes brush, sliding ring and compensation assembly, the compensation assembly include the support and set up in elastic component on the support, set up on the elastic component the brush, the brush is supported tightly the sliding ring. The utility model discloses can reduce the shut down frequency of motor, make things convenient for the staff to overhaul work, improve production efficiency.

Description

Motor and brush structure thereof

Technical Field

The utility model relates to a brush technical field especially relates to a motor and brush structure thereof.

Background

The brushes, which are typically supported by graphite, are mounted on the slip rings of the machine and act as a sliding contact to conduct the current. However, in the using process, the electric brush is easily worn, so that poor contact between the electric brush and the slip ring is caused, the motor is frequently stopped, and the production efficiency is influenced. Because the mounted position of brush in motor structure is comparatively narrow and small, it is comparatively inconvenient that whether the detection brush can normally work, and the efficiency of overhauing work is also lower, further leads to production efficiency to descend again.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a motor and brush structure thereof can reduce the stop frequency of motor, makes things convenient for the staff to overhaul work, improves production efficiency.

In order to achieve the above object, the utility model provides a brush structure of motor, including brush, sliding ring and compensating assembly, including the support with set up in elastic component on the support, set up on the elastic component the brush, the brush supports tightly the sliding ring.

Optionally, the elastic member is a spring, a first end of the spring is disposed on the bracket, and a second end of the spring is disposed on the brush.

Optionally, the compensation assembly further includes a guide post, the guide post is disposed on the bracket, and the spring is sleeved outside the guide post.

Optionally, the compensation assembly further comprises a nut, a thread is arranged on the outer surface of the guide post, the nut is sleeved on the guide post through the thread, and the first end of the spring is tightly abutted to the nut.

Optionally, a through hole is formed in the support, the guide post penetrates through the through hole, and the nut is arranged on one side, facing the spring, of the support.

Optionally, the guide post is a first bolt, and a head of the first bolt is located on a side of the bracket facing away from the spring.

Optionally, the brush includes a brush body and a spring plate, one end of the spring plate is fixedly connected to the insulating block, the other end of the spring plate is fixedly connected to the brush body, the second end of the spring is disposed on the spring plate, and the brush body abuts against the slip ring.

Optionally, the bracket and the spring piece are both arranged on the same side surface of the insulating block.

Optionally, the spring piece is connected with the brush body through a second bolt, a head of the second bolt is located on one side of the spring piece, which is away from the brush body, and a second end of the spring is sleeved outside the head of the second bolt.

The utility model also provides a motor, include as above arbitrary section the brush structure.

The embodiment of the utility model provides a motor and brush structure thereof compares with prior art, and its beneficial effect lies in:

the utility model discloses brush structure of motor, including brush, sliding ring, collets and compensation assembly, including the support with set up the elastic component on the support, set up the brush on the elastic component, the brush supports tight sliding ring. When the brush receives wearing and tearing, the compensating assembly still can support the brush tightly on the sliding ring, prevents contact failure between brush and the sliding ring, reduces the shut down frequency of motor. And when the staff overhauld, the staff only need examine the wearing and tearing condition of brush and confirm whether need change the brush, need not to detect whether have contact failure problem between brush and the sliding ring, makes things convenient for the staff to overhaul work, improves production efficiency.

The embodiment of the utility model provides a still provide a motor, including foretell brush structure, can reduce the stop frequency of motor, make things convenient for the staff to overhaul work, improve production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a compensation assembly according to an embodiment of the present invention.

Fig. 3 is a schematic partial structural diagram of a compensation assembly according to an embodiment of the present invention.

In the figure, 1, a brush; 2. a slip ring; 3. an insulating block; 4. a compensation component; 11. an electric brush body; 12. a spring plate; 13. a second bolt; 41. a support; 42. a spring; 43. a guide post; 44. and a nut.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a brush 1 structure of a motor according to a preferred embodiment of the present invention includes a brush 1, a slip ring 2 and a compensation assembly 4, where the compensation assembly 4 includes a bracket 41 and an elastic member disposed on the bracket 41, the elastic member is provided with the brush 1, and the brush 1 abuts against the slip ring 2. The brush 1 is in contact with the slip ring 2, can form a path, and is electrically conductive. When the electric brush 1 is worn for a period of time, the electric brush 1 is tightly pressed on the slip ring 2 by the elastic piece of the compensation component 4, poor contact between the electric brush 1 and the slip ring 2 is prevented, and the stop frequency of the motor is reduced. Since mechanical wear is easily generated when the brush 1 presses the slip ring 2 with a large pressure, and electrical wear is easily generated when the brush 1 presses the slip ring 2 with a small pressure, it is a reasonable design to maintain the pressure within a certain range. In the embodiment, the elastic element provides pressure for the electric brush 1, and when the electric brush 1 is not worn, the pressure provided by the elastic element for the electric brush 1 is within the reasonable range; after the electric brush 1 is worn, when the wear degree of the electric brush 1 is less than one third of the wear degree of the non-worn electric brush 1, the pressure provided by the elastic piece for the electric brush 1 is in the reasonable range, when the wear degree of the electric brush 1 exceeds one third of the wear degree of the non-worn electric brush 1, the pressure provided by the elastic piece for the electric brush 1 is smaller, the electric brush 1 is not in the reasonable range, the electric wear is easy to cause, and the electric brush 1 needs to be replaced when in maintenance. Of course, whether the wear degree of the brush 1 can enable the pressure provided by the elastic element to be within a reasonable range can be adjusted according to actual needs, and the wear degree can be set to be half. Set up like this, the maintainer only need observe brush 1's degree of wear when overhauing, alright confirm whether need change brush 1, need not to detect whether there is contact failure problem between brush 1 and the sliding ring 2, make things convenient for the staff to overhaul work, improve production efficiency.

In this embodiment, referring to fig. 2-3, an insulating block 3 is disposed on an end of the bracket 41 away from the elastic member, so as to perform an insulating function. The elastic member is a spring 42, a first end of the spring 42 is disposed on the bracket 41, and a second end of the spring 42 is disposed on the brush 1. The holder 41 provides a pressing force to the spring 42, and the spring 42 is kept in a compressed state, so that a stable pressing force can be provided to the brush 1. The compensating assembly 4 further includes a guiding post 43, the guiding post 43 is disposed on the bracket 41, and the spring 42 is sleeved outside the guiding post 43. Through setting up guide post 43, spring 42 can take place the displacement along the extending direction of guide post 43, guarantees that brush 1 can normally work. The compensation assembly 4 further includes a nut 44, the outer surface of the guide post 43 is provided with a thread, the nut 44 is sleeved on the guide post 43 through the thread, and the first end of the spring 42 is tightly pressed against the nut 44. So configured, by varying the position of the nut 44, the amount of pressure provided by the spring 42 can be adjusted. The bracket 41 is provided with a through hole, the guide post 43 passes through the through hole, and the nut 44 is arranged on one side of the bracket 41 facing the spring 42. With this arrangement, the operation of changing the position of the nut 44 is easier, and the burden on the worker is reduced. The guide stud 43 is a first bolt, the head of which is located on the side of the bracket 41 facing away from the spring 42. The first bolt can be connected with the nut 44 and plays a role in guiding, and additional manufacturing is not needed, so that the cost is low.

Brush 1 includes brush 1 body 11 and spring leaf 12, and the one end fixed connection of spring leaf 12 is on insulating block 3, and the other end fixed connection of spring leaf 12 is on brush 1 body 11, and the second end of spring 42 sets up on spring leaf 12, and brush 1 body 11 supports tightly sliding ring 2. Through setting up spring leaf 12, can guarantee that the connection of brush 1 body 11 is firm. Also, with this arrangement, the brush 1 body 11 does not directly contact the spring 42, preventing the brush 1 from being worn. The bracket 41 and the spring piece 12 are both arranged on the same side surface of the insulating block 3. Thus, the bracket 41 and the spring plate 12 can be connected to the insulating block 3 by the same connecting member.

The spring leaf 12 is connected with the brush 1 body 11 through the second bolt 13, the head of the second bolt 13 is located on one side of the spring leaf 12 departing from the brush 1 body 11, and the second end of the spring 42 is sleeved outside the head of the second bolt 13. This arrangement also provides a guide for the spring 42 at the second end of the spring 42, and the second bolt 13 cooperates with the first bolt to define the position of the spring 42.

The embodiment also provides a motor which comprises the brush 1 structure.

The utility model discloses a working process does: the spring 42 provides pressure for the brush 1, the brush 1 can be pressed on the slip ring 2, and when the brush 1 is worn, the spring 42 still provides pressure for the brush 1, so that the brush 1 can still be pressed on the slip ring 2.

To sum up, the embodiment of the utility model provides a motor and brush 1 structure thereof, its brush 1 structure can reduce the stop frequency of motor, makes things convenient for the staff to overhaul work, improves production efficiency.

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 replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The brush structure of the motor is characterized by comprising a brush, a slip ring and a compensation assembly, wherein the compensation assembly comprises a bracket and an elastic piece arranged on the bracket, the brush is arranged on the elastic piece, and the brush is abutted against the slip ring; the elastic piece is a spring, a first end of the spring is arranged on the support, and a second end of the spring is arranged on the electric brush.

2. The brush structure of an electric motor according to claim 1, wherein said compensating assembly further comprises a guide post disposed on said bracket, said spring housing being disposed outside of said guide post.

3. The brush structure of the motor according to claim 2, wherein the compensating assembly further comprises a nut, the outer surface of the guide post is provided with a thread, the nut is sleeved on the guide post through the thread, and the first end of the spring abuts against the nut.

4. The brush structure of an electric motor according to claim 3, wherein the bracket is provided with a through hole through which the guide post passes, and the nut is provided on a side of the bracket facing the spring.

5. The brush structure of an electric machine according to claim 4, wherein the guide post is a first bolt, and a head of the first bolt is located on a side of the bracket facing away from the spring.

6. The brush structure of an electric machine according to claim 3, wherein the brush includes a brush body and a spring plate, one end of the spring plate is fixedly connected to the insulating block, the other end of the spring plate is fixedly connected to the brush body, a second end of the spring is disposed on the spring plate, and the brush body abuts against the slip ring.

7. The brush structure of an electric motor according to claim 6, wherein the holder and the leaf spring are both provided on the same side of the insulating block.

8. The brush structure of the electric motor according to claim 6, wherein the spring plate is connected to the brush body by a second bolt, a head of the second bolt is located on a side of the spring plate facing away from the brush body, and a second end of the spring is sleeved on an outer portion of the head of the second bolt.

9. An electrical machine comprising a brush structure according to any one of claims 1-8.