A low-wear carbon brush assembly

Abstract

The utility model relates to the technical field of carbon brush assemblies, and discloses a low-wear carbon brush assembly, including a lower shell, an upper shell, a carbon brush body, a push spring, a connecting line, an upper copper sheet, two sliders and a limiting frame, the lower end surface of the upper shell is fixedly provided with side plates at both sides, the end surfaces on the opposite sides of the two side plates are fixedly provided with upper fixed plates at the lower sides, the lower end surfaces of the two upper fixed plates are fixedly provided with four fixed cylinders, the lower end surface of the upper shell is fixedly provided with a stabilizing block at the rear side, and the end surfaces on both sides of the lower shell are fixedly provided with lower fixed plates. In the utility model, when the carbon brush body is squeezed, it will slide toward the inner wall of the lower shell to squeeze the push spring, and when the carbon brush body slides, the slider, the side block and the bottom block make the carbon brush body slide more stably, and reduce the contact between the carbon brush body and the inner wall of the lower shell, effectively reducing the wear of the carbon brush body and the lower shell.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon brush components, in particular to a low-wear carbon brush component. Background Art

[0002] Carbon brush assemblies are components used in motors, generators, power tools and other equipment to conduct current or signals. Carbon brushes are usually made of carbon powder and conductive materials, and their shapes and sizes vary according to the needs of different equipment. When the equipment is working, the carbon brushes come into contact with the rotating motor brushes, conduct current through friction, and thus drive the equipment to operate normally.

[0003] Most of the existing carbon brush bodies are in close contact with the inner wall of their protective shells and are pushed by a spring at the rear. During operation, the carbon brushes will be pushed toward the inner wall of the protective shell and then pushed out again by the spring. The carbon brushes are in close contact with the inner wall of the protective shell, resulting in greater wear. Therefore, the utility model provides a low-wear carbon brush assembly to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings existing in the prior art and proposes a low-wear carbon brush assembly, in which the upper cover is closed, the stabilizing block is inserted into the inner wall of the stabilizing groove, the rear plate and the side plate wrap the lower shell, and the fixing tube is inserted into the inner wall of the lower fixing plate, so that the upper shell is fixed more stably, and the carbon brush body will slide toward the inner wall of the lower shell to press the pushing spring when being squeezed, and the carbon brush body will slide more stably through the slider, the side block and the bottom block when sliding, and the contact between the carbon brush body and the inner wall of the lower shell is reduced, thereby effectively reducing the wear of the carbon brush body and the lower shell.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-wear carbon brush assembly, comprising a lower shell, an upper shell, a carbon brush body, a push spring, a connecting wire, an upper copper sheet, two sliders and a limiting frame, the lower end surface of the upper shell is fixedly provided with side plates at both sides, the end surfaces of the opposite sides of the two side plates are fixedly provided with upper fixing plates at the lower sides, the lower end surfaces of the two upper fixing plates are fixedly provided with four fixing cylinders, and the lower end surface of the upper shell is fixedly provided with a stabilizing block at the rear side;

[0006] The lower shell is fixedly provided with lower fixing plates at the lower side, the lower shell inner bottom is fixedly provided with a lower copper sheet at the rear side, the limiting frame is fixedly provided with mounting blocks at the two side end surfaces, the carbon brush body is fixedly provided with side blocks at the rear side, a stabilizing groove is provided at the middle position of the rear inner bottom of the lower shell, and the lower end surface of the carbon brush body is fixedly provided with a bottom block at the rear side;

[0007] Through the above technical scheme, the component is composed of multiple parts. First, the limiting frame is installed on the front side of the lower shell through the mounting blocks on both sides, and then the carbon brush body is inserted into the inner wall of the limiting frame. Then the push spring and the connection are fixed between the carbon brush body and the lower copper sheet, the upper cover is closed, the stabilizing block is inserted into the inner wall of the stabilizing groove, the rear plate and the side plate wrap the lower shell, and the fixing tube is inserted into the inner wall of the lower fixing plate, so that the upper shell is fixed more stably. When the carbon brush body is squeezed, it will slide toward the inner wall of the lower shell to squeeze the push spring. When the carbon brush body slides, the slider, the side block and the bottom block make the carbon brush body slide more stably, and reduce the contact between the carbon brush body and the inner wall of the lower shell, effectively reducing the wear of the carbon brush body and the lower shell.

[0008] Furthermore, the upper end surfaces of the two lower fixing plates are each provided with four embedding holes, the eight fixing cylinders are respectively slidably arranged on the inner walls of the eight embedding holes, and the lower end surfaces of the eight fixing cylinders are each provided with a fixing hole;

[0009] Through the above technical solution, when fixing the upper shell, the fixing tube is inserted into the inner wall of the embedding hole, and then the bolt is screwed into the inner wall of the fixing hole, so that the upper shell is fixed more stably.

[0010] Furthermore, a sheet groove is provided on the rear side of the upper end surface of the upper shell, the upper copper sheet is slidably arranged on the inner wall of the sheet groove, and the upper copper sheet is fixedly arranged on the middle position of the upper end surface of the lower copper sheet;

[0011] Through the above technical solution, the upper copper sheet is arranged on the lower copper sheet, and the upper copper sheet passes through the sheet slot to be connected with the lower copper sheet.

[0012] Furthermore, a rear plate is fixedly arranged at the rear middle of the lower end surface of the upper shell, a rear groove is opened at the upper rear end surface of the lower shell, and the rear plate is slidably arranged on the inner wall of the rear groove;

[0013] Through the above technical solution, a rear plate is arranged at the rear of the upper shell, and the rear plate slides into the inner wall of the rear groove, so that the upper shell is fixed more stably.

[0014] Further, the push spring is fixedly arranged between the carbon brush body and the lower copper sheet, and the connecting wire is connected between the carbon brush body and the lower copper sheet;

[0015] Through the above technical solution, when the carbon brush body is squeezed, the push spring will push the carbon brush body and conduct current or signal through the connecting wire.

[0016] Furthermore, side grooves are provided on both side end surfaces of the lower shell, the two side plates are slidably arranged on the inner walls of the two side grooves respectively, and the stabilizing block is slidably arranged on the inner walls of the stabilizing grooves;

[0017] Through the above technical solution, when the upper shell is installed, the stabilizing block is inserted into the inner wall of the stabilizing groove, and the side plate slides into the inner wall of the side groove, so that the upper shell is fixed more stably and firmly.

[0018] Furthermore, mounting grooves are provided on both sides of the upper end surface of the lower shell near the front side, the two mounting blocks are slidably arranged on the inner walls of the two mounting grooves respectively, the limiting frame is slidably arranged on the inner wall of the front side of the lower shell, and the carbon brush body is slidably arranged on the inner wall of the limiting frame;

[0019] Through the above technical solution, when installing the limiting frame, the mounting block slides into the inner wall of the mounting groove, making the limiting frame more convenient to install, and then the carbon brush body is installed on the inner wall of the limiting groove, making it convenient to use the carbon brush body.

[0020] Furthermore, the inner walls on both sides of the lower shell are provided with slide grooves near the front side, and the two sliders are fixedly arranged on the end surfaces on both sides of the two side blocks, and the two sliders are slidably arranged on the inner walls of the two slide grooves;

[0021] Through the above technical solution, when the carbon brush body slides, the slider slides on the inner wall of the slide groove, so that the carbon brush body slides more stably.

[0022] The utility model has the following beneficial effects:

[0023] 1. The utility model proposes a low-wear carbon brush assembly, which consists of multiple parts. When installing the carbon brush body, the limiting frame is slid into the front inner wall of the lower shell through the mounting blocks on both sides to be fixed, and then the carbon brush body is inserted into the inner wall of the limiting frame, the connecting wire and the push spring are fixed between the carbon brush body and the lower copper sheet, the upper shell is covered above the lower shell, the side plate wraps the lower shell, the stabilizing block is inserted into the inner wall of the stabilizing groove, and the fixing tube is inserted into the inner wall of the lower fixing plate, so that the carbon brush assembly is more convenient to fix and the structure is more stable and firm.

[0024] 2. The utility model proposes a low-wear carbon brush assembly. When the carbon brush body is in use, the carbon brush body contacts with the rotating motor brush when the equipment is working. The contacted carbon brush body will be squeezed to slide toward the inner wall of the lower shell. When sliding, the carbon brush body contacts with the inner wall of the lower shell through the bottom block and the side block, which effectively reduces the contact between the carbon brush body and the inner wall of the lower shell, so that the wear of the carbon brush body is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view axonometric schematic diagram of the utility model;

[0026] Figure 2 It is a rear axonometric schematic diagram of the utility model;

[0027] Figure 3 It is an axonometric diagram of the upper shell of the utility model;

[0028] Figure 4 It is an axonometric schematic diagram of the lower shell of the utility model;

[0029] Figure 5 It is a side sectional schematic diagram of the utility model;

[0030] Figure 6 It is a top sectional schematic diagram of the lower shell of the utility model.

[0031] Legend:

[0032] 1. Upper shell; 2. Upper copper sheet; 3. Side plate; 4. Lower fixed plate; 5. Upper fixed plate; 6. Limit frame; 7. Lower shell; 8. Carbon brush body; 9. Back plate; 10. Fixing hole; 11. Sheet groove; 12. Fixing cylinder; 13. Stabilizing block; 14. Mounting groove; 15. Side groove; 16. Embedding hole; 17. Lower copper sheet; 18. Stabilizing groove; 19. Push spring; 20. Connecting wire; 21. Slide groove; 22. Side block; 23. Sliding block; 24. Mounting block; 25. Bottom block; 26. Back groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0034] Reference Figure 1-6 The utility model provides an embodiment: a low-wear carbon brush assembly, including a lower shell 7, an upper shell 1, a carbon brush body 8, a push spring 19, a connecting line 20, an upper copper sheet 2, two sliders 23 and a limiting frame 6, the lower end surface of the upper shell 1 is fixedly provided with side plates 3 at both sides, the end surfaces of the opposite sides of the two side plates 3 are fixedly provided with upper fixing plates 5 at the lower sides, the lower end surfaces of the two upper fixing plates 5 are fixedly provided with four fixing cylinders 12, and the lower end surface of the upper shell 1 is fixedly provided with a stabilizing block 13 at the rear side;

[0035] The assembly is composed of multiple parts. First, the limiting frame 6 is installed on the front side of the lower shell 7 through the mounting blocks 24 on both sides, and then the carbon brush body 8 is inserted into the inner wall of the limiting frame 6. Then the push spring 19 and the connection are first fixed between the carbon brush body 8 and the lower copper sheet 17, and the upper cover is closed. The stabilizing block 13 is inserted into the inner wall of the stabilizing groove 18, the rear plate 9 and the side plate 3 wrap the lower shell 7, and the fixing tube 12 is inserted into the inner wall of the lower fixing plate 4, so that the upper shell 1 is fixed more stably.

[0036] The lower fixed plates 4 are fixedly arranged at the lower side positions of both side end surfaces of the lower shell 7, the lower copper sheet 17 is fixedly arranged at the rear side position of the inner bottom surface of the lower shell 7, the mounting blocks 24 are fixedly arranged at both side end surfaces of the limiting frame 6, the side blocks 22 are fixedly arranged at the rear side positions of both side end surfaces of the carbon brush body 8, a stabilizing groove 18 is opened at the middle position of the inner bottom surface of the rear side of the lower shell 7, and the bottom block 25 is fixedly arranged at the rear side position of the lower end surface of the carbon brush body 8;

[0037] When the carbon brush body 8 is squeezed, it will slide toward the inner wall of the lower shell 7 to squeeze the push spring 19. When the carbon brush body 8 slides, the slider 23, the side block 22 and the bottom block 25 make the carbon brush body 8 slide more stably, and reduce the contact between the carbon brush body 8 and the inner wall of the lower shell 7, effectively reducing the wear of the carbon brush body 8 and the lower shell 7.

[0038] Four embedding holes 16 are respectively provided on the upper end surfaces of the two lower fixing plates 4, and eight fixing tubes 12 are respectively slidably arranged on the inner walls of the eight embedding holes 16, and fixing holes 10 are provided on the lower end surfaces of the eight fixing tubes 12. A sheet groove 11 is provided on the upper end surface of the upper shell 1 at the rear side, and the upper copper sheet 2 is slidably arranged on the inner wall of the sheet groove 11, and the upper copper sheet 2 is fixedly arranged on the middle position of the upper end surface of the lower copper sheet 17, and a rear plate 9 is fixedly arranged at the middle position of the rear side of the lower end surface of the upper shell 1, and a rear groove 26 is provided on the upper side of the rear end surface of the lower shell 7, and the rear plate 9 is slidably arranged on the inner wall of the rear groove 26;

[0039] When fixing the upper shell 1, the fixing tube 12 is inserted into the inner wall of the embedding hole 16, and then the bolt is screwed into the inner wall of the fixing hole 10, so that the upper shell 1 is fixed more stably. The upper copper sheet 2 is arranged on the lower copper sheet 17, and the upper copper sheet 2 passes through the sheet groove 11 for connection with the upper shell 1. A rear plate 9 is arranged at the rear of the upper shell 1, and the rear plate 9 slides into the inner wall of the rear groove 26, so that the upper shell 1 is fixed more stably.

[0040] The push spring 19 is fixedly arranged between the carbon brush body 8 and the lower copper sheet 17, the connecting line 20 is connected between the carbon brush body 8 and the lower copper sheet 17, the end surfaces of both sides of the lower shell 7 are provided with side grooves 15, the two side plates 3 are respectively slidably arranged on the inner walls of the two side grooves 15, the stabilizing block 13 is slidably arranged on the inner wall of the stabilizing groove 18, the upper end surface of the lower shell 7 is provided with mounting grooves 14 at the front side positions on both sides, the two mounting blocks 24 are respectively slidably arranged on the inner walls of the two mounting grooves 14, the limiting frame 6 is slidably arranged on the front inner wall of the lower shell 7, the carbon brush body 8 is slidably arranged on the inner wall of the limiting frame 6, the inner walls of both sides of the lower shell 7 are provided with slide grooves 21 at the front side positions, the two sliders 23 are respectively fixedly arranged on the end surfaces of both sides of the two side blocks 22, and the two sliders 23 are respectively slidably arranged on the inner walls of the two slide grooves 21;

[0041] When the carbon brush body 8 is squeezed, the push spring 19 will push the carbon brush body 8, and conduct current or signal through the connecting line 20. When the upper shell 1 is installed, the stabilizing block 13 is inserted into the inner wall of the stabilizing groove 18, and the side plate 3 slides into the inner wall of the side groove 15, so that the upper shell 1 is fixed more stably and firmly. When the limiting frame 6 is installed, the mounting block 24 slides into the inner wall of the mounting groove 14, so that the limiting frame 6 is installed more conveniently, and then the carbon brush body 8 is installed on the inner wall of the limiting groove, which is convenient for the use of the carbon brush body 8. When the carbon brush body 8 slides, the slider 23 slides on the inner wall of the slide groove 21, so that the carbon brush body 8 slides more stably.

[0042] Working principle: When installing the carbon brush assembly, insert the carbon brush body 8 into the inner wall of the limiting frame 6, and then insert the installation frames on both sides of the limiting frame 6 into the inner wall of the installation groove 14, the slider 23 squeezes the lower shell 7 into the inner wall of the slide groove 21, and the carbon brush body 8 is connected to the lower copper sheet 17 by the push spring 19 and the connecting line 20, and then the upper shell 1 is covered on the lower shell 7, the stabilizing block 13 enters the inner wall of the stabilizing groove 18, the upper copper sheet 2 passes through the sheet groove 11, the side groove 15 and the rear groove 26 enter the inner walls of the side groove 15 and the rear groove 26 respectively, the fixing tube 12 is inserted into the inner wall of the embedding hole 16, the upper fixing plate 5 fits with the lower fixing plate 4, and then the carbon brush body 8 is installed by bolts passing through the fixing hole 10.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-wear carbon brush assembly, comprising a lower shell (7), an upper shell (1), a carbon brush body (8), a push spring (19), a connecting wire (20), an upper copper sheet (2), two sliders (23) and a limiting frame (6), characterized in that: Side plates (3) are fixedly provided at both sides of the lower end surface of the upper shell (1); upper fixing plates (5) are fixedly provided at the lower sides of the opposite end surfaces of the two side plates (3); four fixing cylinders (12) are fixedly provided at the lower end surfaces of the two upper fixing plates (5); and a stabilizing block (13) is fixedly provided at the rear side of the lower end surface of the upper shell (1); Lower fixing plates (4) are fixedly provided at lower positions on both side end surfaces of the lower shell (7), a lower copper sheet (17) is fixedly provided at a rear position on the inner bottom surface of the lower shell (7), mounting blocks (24) are fixedly provided at both side end surfaces of the limiting frame (6), side blocks (22) are fixedly provided at rear positions on both side end surfaces of the carbon brush body (8), a stabilizing groove (18) is provided at a middle position on the inner bottom surface of the rear side of the lower shell (7), and a bottom block (25) is fixedly provided at a rear position on the lower end surface of the carbon brush body (8).

2. A low-wear carbon brush assembly according to claim 1, characterized in that: The upper end surfaces of the two lower fixing plates (4) are each provided with four embedding holes (16), the eight fixing cylinders (12) are respectively slidably arranged on the inner walls of the eight embedding holes (16), and the lower end surfaces of the eight fixing cylinders (12) are each provided with a fixing hole (10).

3. A low-wear carbon brush assembly according to claim 1, characterized in that: A sheet groove (11) is provided at the rear side of the upper end surface of the upper shell (1), the upper copper sheet (2) is slidably arranged on the inner wall of the sheet groove (11), and the upper copper sheet (2) is fixedly arranged at the middle position of the upper end surface of the lower copper sheet (17).

4. A low-wear carbon brush assembly according to claim 1, characterized in that: A rear plate (9) is fixedly arranged at a rearward position in the middle of the lower end surface of the upper shell (1), a rear groove (26) is provided at an upper position of the rear end surface of the lower shell (7), and the rear plate (9) is slidably arranged on the inner wall of the rear groove (26).

5. A low-wear carbon brush assembly according to claim 1, characterized in that: The push spring (19) is fixedly arranged between the carbon brush body (8) and the lower copper sheet (17), and the connecting wire (20) is connected between the carbon brush body (8) and the lower copper sheet (17).

6. A low-wear carbon brush assembly according to claim 1, characterized in that: Side grooves (15) are provided on both side end surfaces of the lower shell (7), the two side plates (3) are slidably disposed on the inner walls of the two side grooves (15), and the stabilizing block (13) is slidably disposed on the inner walls of the stabilizing groove (18).

7. A low-wear carbon brush assembly according to claim 1, characterized in that: Mounting grooves (14) are provided at the front sides of both sides of the upper end surface of the lower shell (7); the two mounting blocks (24) are slidably arranged on the inner walls of the two mounting grooves (14), respectively; the limiting frame (6) is slidably arranged on the front inner wall of the lower shell (7); and the carbon brush body (8) is slidably arranged on the inner wall of the limiting frame (6).

8. A low-wear carbon brush assembly according to claim 1, characterized in that: Slide grooves (21) are provided at the front positions of the inner walls on both sides of the lower shell (7), and the two sliders (23) are respectively fixedly arranged on the end surfaces on both sides of the two side blocks (22), and the two sliders (23) are respectively slidably arranged on the inner walls of the two slide grooves (21).

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