A low wear carbon brush assembly

Abstract

The utility model relates to carbon brush technical field, and disclose a kind of low-wear carbon brush assembly, the inside installation of mounting seat is equipped with carbon brush, the upper and lower sides of mounting seat are fixedly connected with protruding strip, the upper and lower sides of mounting seat are equipped with limiting slot in installation groove, the upper and lower sides of carbon brush are integrally profiled with guide strip;Two telescopic springs in the utility model can support carbon brush and guide strip by baffle, can improve the stability of carbon brush support, prevent the uneven stress of one end of carbon brush, reduce the mechanical wear of carbon brush, to prolong the service life of carbon brush;By extruding the arc protrusion of elastic sheet, make its stress deformation, the one end of pressure elastic sheet is separated from the inside of mounting hole, then pull pressure elastic sheet and drive fixed plate to separate from the inside of mounting seat, then pull connecting wire and drive carbon brush to separate from the inside of mounting seat, then complete the disassembly of carbon brush, simple and quick operation.

Description

Technical Field

[0001] This utility model relates to the field of carbon brush technology, specifically to a low-wear carbon brush assembly. Background Technology

[0002] Carbon brushes, also known as electric brushes, are sliding contact components used in commutators or slip rings of generators and motors. As sliding contact bodies that conduct current, they have good electrical conductivity, thermal conductivity, and lubrication properties, and also possess a certain mechanical strength. Carbon brushes are mainly composed of carbon brush heads, springs, and copper sheets.

[0003] Common carbon brushes typically maintain their connection with the outer wall of the slip ring on the generator through the elastic force of a single spring. If the supporting force of the single spring deviates from the center of the carbon brush, it can easily lead to uneven force on both ends of the carbon brush, causing one side of the carbon brush to have a tighter contact with the slip ring, while the other side has a looser contact. This affects the service life of the carbon brush and the tightness of the fit between the carbon brush and the slip ring. To address this, a low-wear carbon brush assembly is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a low-wear carbon brush assembly to solve the problem mentioned in the background art. Common carbon brushes are usually connected to the outer wall of the slip ring on the generator by the elastic force of a single spring. If the supporting force of the single spring deviates from the center of the carbon brush, it is easy to cause uneven force on both ends of the carbon brush. This results in one side of the carbon brush being in closer contact with the slip ring, while the other side is in looser contact, which affects the service life of the carbon brush and the tightness of the fit between the carbon brush and the slip ring.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-wear carbon brush assembly, comprising...

[0006] Mounting base, the carbon brush is installed inside the mounting base, the upper and lower sides of the mounting base are fixedly connected with protruding strips, one end of the mounting base is provided with a mounting groove, the upper and lower sides of the mounting groove are provided with limit grooves, and the upper and lower sides of the carbon brush are integrally formed with guide strips.

[0007] A fixing component, which is installed inside the mounting base, is used for limiting the installation of the carbon brush;

[0008] The fixing assembly includes a fixing plate, two telescopic springs, and two baffles. The fixing plate is installed inside the mounting groove and the limiting groove. The two telescopic springs are fixedly connected to one side of the fixing plate, and the two baffles are respectively fixedly connected to the other end of the two telescopic springs.

[0009] Preferably, the guide strip is slidably connected to the inside of the limiting groove, and the carbon brush is located inside the mounting groove.

[0010] Preferably, one side of each of the two baffles abuts against the rear end of the carbon brush and the guide strip, respectively.

[0011] Preferably, one end of an elastic piece is fixedly connected to both the upper and lower ends of one side of the aforementioned fixing plate, and a slot is provided on the protruding strip, with the other end of the elastic piece inserted into the slot.

[0012] Preferably, the carbon brush described above has a connecting wire at its rear end, and the fixing plate has a through groove through which the connecting wire passes.

[0013] Preferably, mounting brackets are installed on both sides of the aforementioned mounting base, and the mounting brackets have two mounting holes.

[0014] Preferably, the elastic sheet described above is provided with arc-shaped protrusions.

[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0016] In this invention, two telescopic springs, through a baffle, can support the carbon brush and guide strip, thereby improving the stability of the carbon brush support, preventing uneven force on one end of the carbon brush, reducing mechanical wear of the carbon brush, and thus extending the service life of the carbon brush.

[0017] This invention uses the arc-shaped protrusion of the elastic sheet to compress it, causing it to deform under force. One end of the elastic sheet is then disengaged from the mounting hole. Pulling the elastic sheet then causes the fixing plate to disengage from the mounting base. Finally, pulling the connecting wire causes the carbon brush to disengage from the mounting base, thus completing the carbon brush disassembly. The operation is simple and quick. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0021] Figure 3 This is a top view of the structure of this utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the mounting base of this utility model;

[0023] Figure 5 This is a schematic diagram of the mounting bracket structure of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Raised strip; 3. Mounting groove; 4. Limiting groove; 5. Carbon brush; 6. Guide strip; 7. Connecting wire; 8. Fixing plate; 9. Telescopic spring; 10. Baffle; 11. Elastic sheet; 12. Slot; 13. Through groove; 14. Mounting bracket; 15. Mounting hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce. Example

[0027] In existing technologies, common carbon brushes are usually connected to the outer wall of the slip ring on the generator by the elastic force of a single spring. If the supporting force of the single spring deviates from the center of the carbon brush, it is easy to cause uneven force on both ends of the carbon brush, making one side of the carbon brush contact the slip ring more tightly, while the other side is loosely connected, thus affecting the service life of the carbon brush and the tightness of the fit between the carbon brush and the slip ring.

[0028] Please see Figure 1-5This utility model provides a technical solution: a low-wear carbon brush assembly, including a mounting base 1, a carbon brush 5 installed inside the mounting base 1, protruding strips 2 fixedly connected to both the upper and lower sides of the mounting base 1, a mounting groove 3 opened at one end of the mounting base 1, limiting grooves 4 opened on both the upper and lower sides of the mounting groove 3, and guide strips 6 integrally formed on both the upper and lower sides of the carbon brush 5, the guide strips 6 being slidably connected to the inside of the limiting grooves 4, the carbon brush 5 being located inside the mounting groove 3; a fixing assembly, the fixing assembly being installed inside the mounting base 1, the fixing assembly being used for limiting the installation of the carbon brush 5; the fixing assembly includes a fixing plate 8, two telescopic springs 9, and two baffles 10, when installing the carbon brush 5, by inserting the carbon brush 5 and the guide strips 6 into the inside of the mounting groove 3 and the limiting grooves 4, and then inserting the baffles 10 on the two telescopic springs 9 into the inside of the mounting groove 3 and the limiting grooves 4, so that the baffles 10 abut against one end of the carbon brush 5 and the guide strips 6;

[0029] The fixing plate 8 is installed inside the mounting groove 3 and the limiting groove 4. Two telescopic springs 9 are fixedly connected to one side of the fixing plate 8, and two baffles 10 are fixedly connected to the other end of the two telescopic springs 9 respectively. By installing two telescopic springs 9 in the mounting groove 3 and the limiting groove 4 inside the mounting base 1, the two telescopic springs 9 can support the carbon brush 5 and the guide strip 6 through the baffles 10, which can improve the stability of the carbon brush 5 support, prevent uneven force on one end of the carbon brush 5, reduce the mechanical wear of the carbon brush 5, and thus extend the service life of the carbon brush 5.

[0030] One side of each of the two baffles 10 abuts against the rear end of the carbon brush 5 and the guide strip 6, respectively. One end of each elastic piece 11 is fixedly connected to the upper and lower ends of one side of the fixing plate 8. A slot 12 is provided on the protruding strip 2. The other end of the elastic piece 11 is inserted into the slot 12. An arc-shaped protrusion is provided on the elastic piece 11. A connecting line 7 is provided at the rear end of the carbon brush 5. A through groove 13 is provided on the fixing plate 8. The connecting line 7 passes through the through groove 13. By squeezing the arc-shaped protrusion of the elastic piece 11, it is deformed under force, and one end of the elastic piece 11 is dislodged from the mounting hole 15. Then, following the above steps, the other squeezing elastic piece 11 is disassembled. At this time, the squeezing elastic piece 11 can be pulled to drive the fixing plate 8 out of the mounting base 1, thereby driving the baffle 10 out of one end of the carbon brush 5. Then, by pulling the connecting line 7, the carbon brush 5 can be pulled out of the mounting base 1, thus completing the disassembly of the carbon brush 5.

[0031] During installation, the carbon brush 5 and guide strip 6 are inserted into the mounting groove 3 and limiting groove 4. By pressing and moving the fixing plate 8, the elastic piece 11 deforms. When one end of the elastic piece 11 moves to the outside of the slot 12, the arc-shaped protrusion of the elastic piece 11 is reset, so that one end of the elastic piece 11 moves into the inside of the slot 12, thus completing the limiting of the carbon brush 5.

[0032] Mounting brackets 14 are installed on both sides of the mounting base 1. Each mounting bracket 14 has two mounting holes 15, which can be used to fix the mounting base 1.

[0033] The working principle or structural principle is as follows: two telescopic springs 9 are installed in the mounting groove 3 and the limiting groove 4 inside the mounting base 1. The two telescopic springs 9 can support the carbon brush 5 and the guide strip 6 through the baffle 10, which can improve the stability of the carbon brush 5 support, prevent uneven force on one end of the carbon brush 5, reduce the mechanical wear of the carbon brush 5, and thus extend the service life of the carbon brush 5. When it is necessary to disassemble a single carbon brush 5, the arc-shaped protrusion of the elastic sheet 11 is squeezed to deform it under force, and one end of the elastic sheet 11 is disassembled from the inside of the mounting hole 15. Then, following the above steps, the other elastic sheet 11 is disassembled. At this time, the elastic sheet 11 can be pulled to drive the fixing plate 8 to disassemble from the inside of the mounting base 1, thereby driving the baffle 10 to disassemble from one end of the carbon brush 5. Then, by pulling the connecting wire 7, the carbon brush 5 can be pulled out of the inside of the mounting base 1, thus completing the disassembly of the carbon brush 5.

[0034] When installing the carbon brush 5, the carbon brush 5 and guide strip 6 are inserted into the mounting groove 3 and limiting groove 4, and then the baffles 10 on the two telescopic springs 9 are inserted into the mounting groove 3 and limiting groove 4, so that the baffles 10 abut against one end of the carbon brush 5 and guide strip 6. By pressing the fixed plate 8 to move, the elastic piece 11 deforms. When one end of the elastic piece 11 moves to the outside of the slot 12, the arc-shaped protrusion of the elastic piece 11 returns to its original position, so that one end of the elastic piece 11 moves into the inside of the slot 12, thus completing the limiting of the carbon brush 5.

[0035] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A low-wear carbon brush assembly, characterized in that: include Mounting base (1), carbon brush (5) is installed inside the mounting base (1), protruding strips (2) are fixedly connected to the upper and lower sides of the mounting base (1), a mounting groove (3) is opened at one end of the mounting base (1), a limiting groove (4) is opened on the upper and lower sides of the mounting groove (3), and a guide strip (6) is integrally formed on the upper and lower sides of the carbon brush (5). A fixing component is installed inside the mounting base (1) and is used to limit the installation of the carbon brush (5); The fixing assembly includes a fixing plate (8), two telescopic springs (9) and two baffles (10). The fixing plate (8) is installed inside the mounting groove (3) and the limiting groove (4). The two telescopic springs (9) are fixedly connected to one side of the fixing plate (8), and the two baffles (10) are fixedly connected to the other end of the two telescopic springs (9).

2. The low-wear carbon brush assembly according to claim 1, characterized in that: The guide bar (6) is slidably connected to the inside of the limiting groove (4), and the carbon brush (5) is located inside the mounting groove (3).

3. The low-wear carbon brush assembly according to claim 1, characterized in that: One side of each of the two baffles (10) abuts against the rear end of the carbon brush (5) and the guide strip (6), respectively.

4. The low-wear carbon brush assembly according to claim 1, characterized in that: One end of an elastic sheet (11) is fixedly connected to both the upper and lower ends of one side of the fixed plate (8). A slot (12) is provided on the protruding strip (2), and the other end of the elastic sheet (11) is inserted into the slot (12).

5. A low-wear carbon brush assembly according to claim 1, characterized in that: The carbon brush (5) has a connecting wire (7) at its rear end, and the fixing plate (8) has a through groove (13) with the connecting wire (7) passing through the inside of the through groove (13).

6. A low-wear carbon brush assembly according to claim 1, characterized in that: Mounting brackets (14) are installed on both sides of the mounting base (1), and the mounting brackets (14) have two mounting holes (15).

7. A low-wear carbon brush assembly according to claim 4, characterized in that: The elastic sheet (11) is provided with arc-shaped protrusions.

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