Novel wear-resistant motor carbon brush

Abstract

The utility model provides a novel wear -resisting motor carbon brush, include: carbon brush device and protection device, carbon brush device includes carbon brush main part, wire, lug and spring, one end fixed mounting of wire is in one end of carbon brush main part, one side fixed mounting of lug is in one end of wire, spring sets up in one side of carbon brush main part, protection device includes protection box, sliding hole and protection cover, protection box sets up in one side of lug, sliding hole opens in the inside of protection box, protection cover slidingly connects in the inside of sliding hole. The utility model provides a novel wear -resisting motor carbon brush, through protection box cooperation sliding hole and protection cover, make carbon brush main part when installing, spring when extruding, wire will not bend, the surface of wire will not contact with the surface of spring, thereby increase the security of carbon brush main part work.

Description

Technical Field

[0001] This utility model relates to the field of carbon brushes, and in particular to a novel wear-resistant motor carbon brush. Background Technology

[0002] Carbon brushes, also known as electrical brushes, are widely used in many electrical devices as sliding contact components. The main materials used in carbon brush applications include graphite, resin-impregnated graphite, and metallic graphite. Carbon brushes are devices that transmit energy or signals between the stationary and rotating parts of electric motors, generators, or other rotating machinery. They are generally made of pure carbon with a solidifying agent, and are typically square in shape, held in place by a metal bracket. A spring inside presses them firmly against the rotating shaft. When the motor rotates, it transmits electrical energy to the coils through the commutator. Because its main component is carbon, it is called a carbon brush, and it is prone to wear.

[0003] Modern carbon brushes incorporate a wear-resistant layer between two surface layers. The surface layer is made of natural graphite, while the wear-resistant layer is made of silver-containing graphite. Natural graphite carbon brushes have excellent lubrication and current-collecting properties, while silver-containing graphite has good wear resistance and high conductivity, which improves the wear resistance of the carbon brush body. A conductive layer, made of copper, is placed between the two wear-resistant layers. Copper has high conductivity, which gives the carbon brush body excellent conductivity.

[0004] However, the carbon brush braid is located in the middle of the spring, and the length of the braid is fixed. When the carbon brush is installed, the spring contracts, and the braid bends, making it easy for it to come into contact with the spring. When the carbon brush braid and the spring come into contact, it may cause problems such as short circuit and abnormal current, affecting the normal operation of the motor.

[0005] Therefore, it is necessary to provide new wear-resistant motor carbon brushes to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a new type of wear-resistant motor carbon brush, which solves the problem that when installing current carbon brushes, the spring contracts and the brush braid bends, making it easy for the brush to come into contact with the spring.

[0007] To solve the above-mentioned technical problems, the present invention provides a novel wear-resistant motor carbon brush, comprising: a carbon brush device and a protective device;

[0008] The carbon brush device includes a carbon brush body, a wire, a connector, and a spring. One end of the wire is fixedly installed at one end of the carbon brush body, one side of the connector is fixedly installed at one end of the wire, and the spring is disposed on one side of the carbon brush body.

[0009] The protective device includes a protective box, a sliding hole, and a protective sleeve. The protective box is disposed on one side of the connector, the sliding hole is opened inside the protective box, and the protective sleeve is slidably connected to the inside of the sliding hole.

[0010] Preferably, the protective box is provided with a reset assembly inside. The reset assembly includes a reset groove, a reset block and a reset spring. The reset groove is opened inside the protective box, the reset block is slidably connected to the inside of the reset groove, and the reset spring is disposed inside the reset groove.

[0011] Preferably, a connecting rod is fixedly connected to one side of the reset block, and a movable sleeve is fixedly connected to one end of the connecting rod.

[0012] Preferably, the movable sleeve is slidably connected to the surface of the wire.

[0013] Preferably, a connecting frame is provided at one end of the carbon brush body, and fixing devices are provided on both sides of the connecting frame.

[0014] Preferably, the fixing device includes a fixing sleeve, a spring piece, a limiting groove, and a limiting block. One side of the fixing sleeve is fixedly connected to one end of the connecting frame. The spring piece is slidably connected to the inside of the fixing sleeve. The limiting groove is formed inside the fixing sleeve. The limiting block is slidably connected to the inside of the limiting groove.

[0015] Preferably, the limiting groove is provided on both sides of the interior of the carbon brush body.

[0016] Compared with related technologies, the novel wear-resistant motor carbon brush provided by this utility model has the following beneficial effects:

[0017] This utility model provides a novel wear-resistant motor carbon brush. By using a protective box, sliding hole, and protective sleeve, the wire will not bend when the spring is compressed during the installation of the carbon brush body, and the surface of the wire will not come into contact with the surface of the spring, thereby increasing the safety of the carbon brush body during operation. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the first embodiment of the novel wear-resistant motor carbon brush provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the structure of the protective box.

[0020] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0021] Figure 4A schematic diagram of the structure of the second embodiment of the novel wear-resistant motor carbon brush provided by this utility model;

[0022] Figure 5 for Figure 4 The diagram shows the structure of the fixing sleeve;

[0023] Figure 6 for Figure 5 The enlarged schematic diagram of part B is shown.

[0024] The following are the labels in the diagram: 1. Carbon brush assembly, 11. Carbon brush body, 12. Wire, 13. Connecting piece, 14. Spring, 2. Protective device, 21. Protective box, 22. Sliding hole, 23. Protective sleeve, 3. Reset assembly, 31. Reset groove, 32. Reset block, 33. Reset spring, 4. Connecting rod, 5. Moving sleeve, 6. Fixing device, 61. Fixing sleeve, 62. Spring piece, 63. Limiting groove, 64. Limiting block, 7. Connecting frame. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the novel wear-resistant motor carbon brush provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the protective box.

[0028] Figure 3 for Figure 2 The enlarged schematic diagram of part A is shown. The new wear-resistant motor carbon brush includes: a carbon brush assembly 1 and a protective device 2;

[0029] The carbon brush device 1 includes a carbon brush body 11, a wire 12, a connector 13, and a spring 14. One end of the wire 12 is fixedly installed at one end of the carbon brush body 11, one side of the connector 13 is fixedly installed at one end of the wire 12, and the spring 14 is disposed on one side of the carbon brush body 11.

[0030] The protective device 2 includes a protective box 21, a sliding hole 22, and a protective sleeve 23. The protective box 21 is disposed on one side of the connector 13, the sliding hole 22 is opened inside the protective box 21, and the protective sleeve 23 is slidably connected to the inside of the sliding hole 22.

[0031] One end of the protective sleeve 23 is fixedly installed on one end of the carbon brush body 11 to cooperate with the sliding hole 22 and the protective box 21 to separate the wire 12 from the spring 14, thereby preventing the wire 12 from contacting the spring 14 when the spring 14 is squeezed.

[0032] The protective box 21 is provided with a reset assembly 3 inside. The reset assembly 3 includes a reset groove 31, a reset block 32 and a reset spring 33. The reset groove 31 is opened inside the protective box 21, the reset block 32 is slidably connected to the inside of the reset groove 31, and the reset spring 33 is disposed inside the reset groove 31.

[0033] A connecting rod 4 is fixedly connected to one side of the reset block 32, and a movable sleeve 5 is fixedly connected to one end of the connecting rod 4.

[0034] The movable sleeve 5 is slidably connected to the surface of the wire 12.

[0035] When the spring 14 pushes the carbon brush body 11 to one side and straightens the wire 12, the wire 12 drives the moving sleeve 5 connected to the connecting rod 4 to move to one side. This causes the reset block 32 to move to one side inside the reset groove 31, while squeezing the reset spring 33, causing the wire 12 to bend along the route, thereby preventing the wire 12 from accumulating inside the protective sleeve 23.

[0036] The working principle of the novel wear-resistant motor carbon brush provided by this utility model is as follows:

[0037] When the carbon brush body 11 is installed, the protective sleeve 23 moves to one side inside the sliding hole 22 when the spring 14 is squeezed, so that the wire 12 inside the protective box 21 bends, so that the wire 12 will not bend when the spring 14 is squeezed, and the surface of the wire 12 will not contact the surface of the spring 14.

[0038] Compared with related technologies, the novel wear-resistant motor carbon brush provided by this utility model has the following beneficial effects:

[0039] This utility model provides a novel wear-resistant motor carbon brush. By using a protective box 21 in conjunction with a sliding hole 22 and a protective sleeve 23, the wire 12 will not bend when the spring 14 is compressed during the installation of the carbon brush body 11, and the surface of the wire 12 will not come into contact with the surface of the spring 14, thereby increasing the safety of the carbon brush body 11 during operation.

[0040] Second Embodiment

[0041] Please refer to the following: Figure 4 , Figure 5 and Figure 6Based on the novel wear-resistant motor carbon brush provided in the first embodiment of this application, the second embodiment of this application proposes another novel wear-resistant motor carbon brush. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0042] Specifically, the difference in the novel wear-resistant motor carbon brush provided in the second embodiment of this application is that the novel wear-resistant motor carbon brush has a connecting frame 7 at one end of the carbon brush body 11, and fixing devices 6 are provided on both sides of the connecting frame 7.

[0043] The connecting bracket 7 is made of the same material as the carbon brush body 11. One side of the connecting bracket 7 is fixedly installed on one end of the wire 12 and located at one end of the spring 14. The connecting bracket 7 is used to connect the carbon brush body 11 and the wire 12.

[0044] One end of the protective sleeve 23 is also fixedly installed on one end of the connecting bracket 7.

[0045] The fixing device 6 includes a fixing sleeve 61, a spring piece 62, a limiting groove 63, and a limiting block 64. One side of the fixing sleeve 61 is fixedly connected to one end of the connecting frame 7. The spring piece 62 is slidably connected to the inside of the fixing sleeve 61. The limiting groove 63 is opened inside the fixing sleeve 61. The limiting block 64 is slidably connected to the inside of the limiting groove 63.

[0046] One side of the spring piece 62 is fixedly connected to one side of the limiting block 64, so as to drive the limiting block 64 to separate from the limiting groove 63 when the spring piece 62 is moved to one side.

[0047] The limiting groove 63 is provided on both sides of the interior of the carbon brush body 11.

[0048] The limiting groove 63, together with the limiting block 64, is used to limit the carbon brush body 11 after it is installed between the two fixing sleeves 61.

[0049] The working principle of the novel wear-resistant motor carbon brush provided by this utility model is as follows:

[0050] In use, by pressing one side of the spring piece 62 to one side, the spring piece 62 causes the limiting block 64 to move and separate to one side inside the limiting groove 63. After pulling the spring piece 62 to one side and moving and separating it inside the fixing sleeve 61, the spring piece 62 is removed. Then, the carbon brush body 11 is pulled to one side and separated from the two fixing sleeves 61, and it can be removed.

[0051] After inserting the new carbon brush body 11 between the two fixing sleeves 61, insert the two spring pieces 62 into the appropriate positions inside the two fixing sleeves 61 respectively. After the spring pieces 62 reset, they drive the limiting block 64 to be inserted into the limiting groove 63, thereby limiting the carbon brush body 11.

[0052] Compared with related technologies, the novel wear-resistant motor carbon brush provided by this utility model has the following beneficial effects:

[0053] This utility model provides a new type of wear-resistant motor carbon brush. The carbon brush body 11 can be replaced by fixing device 6 and connecting bracket 7, thereby reducing the cost of replacing the carbon brush body 11 and lowering the cost of use.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel wear-resistant motor carbon brush, characterized in that, include: Carbon brush assembly and protective devices; The carbon brush device includes a carbon brush body, a wire, a connector, and a spring. One end of the wire is fixedly installed at one end of the carbon brush body, one side of the connector is fixedly installed at one end of the wire, and the spring is disposed on one side of the carbon brush body. The protective device includes a protective box, a sliding hole, and a protective sleeve. The protective box is disposed on one side of the connector, the sliding hole is opened inside the protective box, and the protective sleeve is slidably connected to the inside of the sliding hole.

2. The novel wear-resistant motor carbon brush according to claim 1, characterized in that, The protective box is equipped with a reset assembly, which includes a reset groove, a reset block, and a reset spring. The reset groove is located inside the protective box, the reset block is slidably connected to the inside of the reset groove, and the reset spring is located inside the reset groove.

3. The novel wear-resistant motor carbon brush according to claim 2, characterized in that, A connecting rod is fixedly connected to one side of the reset block, and a movable sleeve is fixedly connected to one end of the connecting rod.

4. The novel wear-resistant motor carbon brush according to claim 3, characterized in that, The movable sleeve is slidably connected to the surface of the wire.

5. The novel wear-resistant motor carbon brush according to claim 1, characterized in that, A connecting frame is provided at one end of the carbon brush body, and fixing devices are provided on both sides of the connecting frame.

6. The novel wear-resistant motor carbon brush according to claim 5, characterized in that, The fixing device includes a fixing sleeve, a spring piece, a limiting groove, and a limiting block. One side of the fixing sleeve is fixedly connected to one end of the connecting frame. The spring piece is slidably connected to the inside of the fixing sleeve. The limiting groove is opened inside the fixing sleeve. The limiting block is slidably connected to the inside of the limiting groove.

7. The novel wear-resistant motor carbon brush according to claim 6, characterized in that, The limiting grooves are provided on both sides of the interior of the carbon brush body.

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