A carbon brush assembly facilitating replacement of carbon brushes

Abstract

The utility model relates to carbon brush technical field, and disclose a kind of carbon brush assembly of carbon brush convenient to replace, including pivot, end cap is sleeved with pivot outside, carbon brush holder is fixed in end cap side, carbon brush holder side is equipped with cover, carbon brush holder inside is equipped with carbon brush body;Carbon brush holder side is equipped with the connecting assembly for dismounting cover and replacing carbon brush body;Carbon brush body side is equipped with the state of wear prompt assembly for prompting carbon brush body;Connecting assembly includes the support frame of two, the limit slot and the sliding slot are respectively opened in support frame inner portion, sliding groove inside is slidably connected with sliding plate, lock rod is fixed in sliding plate side, by respectively pulling sliding plate to two sides, lock rod can be made to leave lock slot, to be able to easily pull up cover and take out carbon brush body, when installing new carbon brush body, only need to be inserted into limit slot by aligning connecting frame, after pulling sliding plate, it can be completed locking by loosening, entire replacement process does not need complex tool and tedious procedure, reduce maintenance time.

Description

Technical Field

[0001] This utility model relates to the field of carbon brush technology, specifically to a carbon brush assembly that facilitates carbon brush replacement. Background Technology

[0002] Carbon brushes, also known as electric 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 (including copper and silver) 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 a commutator.

[0003] Traditional carbon brush assemblies require bolts or clips to secure the cover plate, and replacement requires the use of special tools for gradual disassembly, which is cumbersome. Some designs also require simultaneous adjustment of spring pressure, further increasing the difficulty of maintenance. Therefore, a carbon brush assembly that facilitates carbon brush replacement is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a carbon brush assembly that facilitates carbon brush replacement, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a carbon brush assembly that facilitates carbon brush replacement, comprising a rotating shaft, an end cap sleeved on the outer side of the rotating shaft, a carbon brush holder fixed on one side of the end cap, a cover plate on one side of the carbon brush holder, and a carbon brush body on the inner side of the carbon brush holder.

[0006] The carbon brush holder has a connecting component on one side for removing and installing the cover plate to replace the carbon brush body.

[0007] One side of the carbon brush body is provided with an indicator component for indicating the wear status of the carbon brush body;

[0008] The connecting assembly includes two support frames, each with a limiting groove and a sliding groove inside. A sliding plate is slidably connected to the inside of the sliding groove, and a locking rod is fixed to one side of the sliding plate.

[0009] Both sides of the bottom of the cover plate are fixed with connecting brackets, and a locking groove is opened on one side of the bottom of the connecting bracket.

[0010] Preferably, the number of carbon brush bodies is two, and the two carbon brush bodies are symmetrically arranged on both sides of the rotating shaft.

[0011] Preferably, the inner wall of the slide groove is fixed with a slide rod, and the outer side of the slide rod is movably inserted into one side of the slide plate.

[0012] Preferably, as described above, a spring is sleeved on the outer side of the slide rod, and the two sides of the spring are respectively connected to one side of the slide plate and the slide groove.

[0013] Preferably, the locking rod is cylindrical in shape. When the locking rod is inserted into the lock groove, the carbon brush body is in the installation state, and when the locking rod leaves the lock groove, the carbon brush body is in the replacement state.

[0014] Preferably, the support frame is fixed to one side of the carbon brush holder, the outer side of the rotating shaft is provided with a housing, and a wire located outside the carbon brush holder is connected to one side of the carbon brush body.

[0015] Preferably, the above-mentioned prompting component includes a sliding column, with a first limiting plate and a second limiting plate fixed at both ends of the sliding column, a tension spring sleeved on the outside of the sliding column, the two sides of the tension spring being connected to one side of the first limiting plate and one side of the carbon brush holder, and one side of the sliding column being inserted into one side of the carbon brush holder.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0017] By pulling the slide plates to both sides, the locking rod can be disengaged from the locking groove, allowing the cover plate to be easily pulled up to remove the carbon brush body. When installing a new carbon brush body, simply align the connecting bracket with the limiting groove, insert it, pull the slide plate, and release to lock it. The entire replacement process requires no complicated tools or cumbersome steps, greatly improving replacement efficiency and reducing maintenance time.

[0018] The wear condition of the carbon brush body can be judged by visually measuring the distance between the first limiting plate and the housing. No additional complex measuring tools or professional testing equipment are required. It is simple and intuitive, and any operator can easily master it. It can quickly obtain the wear information of the carbon brush body, allowing staff to understand the wear status of the carbon brush body in a timely manner. When the carbon brush body is worn to the point that it needs to be replaced, it can be replaced in time to avoid equipment failure due to excessive wear of the carbon brush body and ensure the normal operation of the equipment. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a first-view structural diagram of the present invention;

[0021] Figure 2This is a schematic diagram of the second-view structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the slide plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the second limiting plate of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Rotating shaft; 2. Carbon brush body; 3. Indicator assembly; 31. Sliding column; 32. First limiting plate; 33. Tension spring; 34. Second limiting plate; 4. Carbon brush holder; 5. Connecting assembly; 51. Support frame; 52. Limiting groove; 53. Locking rod; 54. Sliding plate; 55. Sliding groove; 56. Sliding rod; 57. Connecting frame; 58. Spring; 59. Locking groove; 6. Cover plate; 7. End cap; 8. Wire; 9. Housing. Detailed Implementation

[0026] 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.

[0027] 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

[0028] Please see Figure 1-5 This utility model provides a technical solution: a carbon brush assembly that facilitates carbon brush replacement, including a rotating shaft 1, an end cap 7 sleeved on the outside of the rotating shaft 1, a carbon brush holder 4 fixed on one side of the end cap 7, a cover plate 6 on one side of the carbon brush holder 4, and a carbon brush body 2 on the inside of the carbon brush holder 4; the number of carbon brush bodies 2 is two, and the two carbon brush bodies 2 are symmetrically arranged on both sides of the rotating shaft 1.

[0029] The carbon brush holder 4 has a connecting component 5 on one side for removing and installing the cover plate 6 to replace the carbon brush body 2; the carbon brush body 2 has a component 3 on one side for indicating the wear status of the carbon brush body 2; regular visual inspection can detect the critical wear status of the carbon brush body 2 in advance and avoid sudden shutdown accidents.

[0030] The connecting component 5 includes two support frames 51. The support frames 51 have a limit groove 52 and a slide groove 55 respectively. A slide plate 54 is slidably connected to the inside of the slide groove 55. A locking rod 53 is fixed on one side of the slide plate 54. The two slide plates 54 operate synchronously to avoid stress concentration on one side and extend the service life of the slide groove 55 and the locking rod 53.

[0031] Both sides of the bottom of the cover plate 6 are fixed with connecting brackets 57. A locking groove 59 is opened on one side of the bottom of the connecting bracket 57. A sliding rod 56 is fixed on the inner wall of the sliding groove 55. The outer side of the sliding rod 56 is movably inserted into one side of the sliding plate 54. The sliding plate 54 slides on the inner side of the sliding groove 55. At the same time, the sliding plate 54 compresses the spring 58 and drives the locking rod 53 to move to one side, thereby causing the locking rod 53 to leave the inner side of the locking groove 59. The outer side of the sliding rod 56 is fitted with the spring 58. The two sides of the spring 58 are respectively connected to one side of the sliding plate 54 and the sliding groove 55.

[0032] The locking rod 53 is cylindrical. When the locking rod 53 is inserted into the inner side of the locking groove 59, the carbon brush body 2 is in the installation state. When the locking rod 53 leaves the inner side of the locking groove 59, the carbon brush body 2 is in the replacement state. The engagement of the locking rod 53 and the locking groove 59 ensures that the carbon brush holder 4 cannot be opened without active operation, preventing accidental detachment during operation. One side of the support frame 51 is fixed to one side of the carbon brush holder 4. The outer side of the rotating shaft 1 is provided with a housing 9. One side of the carbon brush body 2 is connected to a wire 8 located on the outer side of the carbon brush holder 4.

[0033] The prompt component 3 includes a slide column 31, with a first limiting plate 32 and a second limiting plate 34 fixed at both ends of the slide column 31. The first limiting plate 32 is fixed to one end of the slide column 31 by screws. A tension spring 33 is sleeved on the outside of the slide column 31. The two sides of the tension spring 33 are respectively connected to one side of the first limiting plate 32 and one side of the carbon brush holder 4. One side of the slide column 31 is inserted into one side of the carbon brush holder 4. When the carbon brush body 2 wears, the tension of the tension spring 33 pushes the second limiting plate 34 to move towards the commutator side, which automatically compensates for the wear of the carbon brush body 2 to a certain extent, so that the carbon brush body 2 can always maintain good contact with the commutator.

[0034] Working principle: When the carbon brush body 2 needs to be replaced after it wears out from contact with the commutator, simply pull the slide plate 54 to both sides to make the slide plate 54 slide inside the slide groove 55. At the same time, the slide plate 54 compresses the spring 58 and drives the locking rod 53 to move to one side. The locking rod 53 leaves the inside of the locking groove 59. Then pull the cover plate 6 upward. At this time, the carbon brush body 2 can be taken out from the top of the carbon brush holder 4.

[0035] Take a new carbon brush body 2, connect the wire 8 to the external circuit, and place the wire 8 in the wiring groove between the cover plate 6 and the carbon brush holder 4. Insert the carbon brush body 2 into the carbon brush holder 4, and make one side of the second limiting plate 34 fit against one side of the carbon brush body 2. Then, align the connecting brackets 57 on both sides of the cover plate 6 with the inside of the limiting groove 52 and insert them. Pull the sliding plate 54 to one side. When the bottom of the cover plate 6 contacts the top of the carbon brush holder 4, release the pulling force of the sliding plate 54. Then, insert the locking rod 53 into the inside of the locking groove 59. At this time, the replacement of the carbon brush body 2 is completed.

[0036] When the carbon brush body 2 is in use, it wears down continuously. At this time, the tension of the tension spring 33 pushes the second limiting plate 34 to move towards the commutator side. When the carbon brush body 2 needs to be replaced, the wear condition of the carbon brush body 2 can be determined by visually measuring the distance between the first limiting plate 32 and the housing 9, which makes it convenient to replace the carbon brush body 2 in a timely manner.

[0037] In summary, by pulling the slide plate 54 to both sides, the locking rod 53 can be disengaged from the locking groove 59, allowing the cover plate 6 to be easily pulled upwards to remove the carbon brush body 2. When installing a new carbon brush body 2, simply align the connecting bracket 57 with the limiting groove 52 and insert it, then pull the slide plate 54 and release to complete the locking. The entire replacement process requires no complicated tools or cumbersome steps, greatly improving replacement efficiency and reducing maintenance time.

[0038] The wear condition of the carbon brush body 2 can be judged by visually measuring the distance between the first limiting plate 32 and the housing 9. This method does not require additional complex measuring tools or professional testing equipment. It is simple and intuitive, and any operator can easily master it. It can quickly obtain the wear information of the carbon brush body 2, allowing staff to understand the wear condition of the carbon brush body 2 in a timely manner. When the carbon brush body 2 is worn to the point that it needs to be replaced, it can be replaced in a timely manner, avoiding equipment failure due to excessive wear of the carbon brush body 2 and ensuring the normal operation of the equipment.

[0039] 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 carbon brush assembly for easy replacement of carbon brushes, comprising a rotating shaft (1), characterized in that: An end cap (7) is sleeved on the outside of the rotating shaft (1). A carbon brush holder (4) is fixed on one side of the end cap (7). A cover plate (6) is provided on one side of the carbon brush holder (4). A carbon brush body (2) is provided on the inside of the carbon brush holder (4). The carbon brush holder (4) has a connecting component (5) on one side for removing and installing the cover plate (6) to replace the carbon brush body (2). The carbon brush body (2) is provided with a wear indicator component (3) on one side for indicating the wear status of the carbon brush body (2); The connecting component (5) includes two support frames (51), each with a limiting groove (52) and a sliding groove (55) inside. A sliding plate (54) is slidably connected to the inside of the sliding groove (55), and a locking rod (53) is fixed to one side of the sliding plate (54). The bottom sides of the cover plate (6) are fixed with connecting brackets (57), and a locking groove (59) is provided on one side of the bottom of the connecting bracket (57).

2. The carbon brush assembly for easy replacement of carbon brushes according to claim 1, characterized in that: The number of carbon brush bodies (2) is two, and the two carbon brush bodies (2) are symmetrically arranged on both sides of the rotating shaft (1).

3. A carbon brush assembly for easy replacement of carbon brushes according to claim 1, characterized in that: A slide rod (56) is fixed to the inner wall of the slide groove (55), and the outer side of the slide rod (56) is movably inserted into one side of the slide plate (54).

4. A carbon brush assembly for easy replacement of carbon brushes according to claim 3, characterized in that: A spring (58) is sleeved on the outside of the slide bar (56), and the two sides of the spring (58) are respectively connected to one side of the slide plate (54) and the slide groove (55).

5. A carbon brush assembly for easy replacement of carbon brushes according to claim 4, characterized in that: The locking rod (53) is cylindrical. When the locking rod (53) is inserted into the inside of the locking groove (59), the carbon brush body (2) is in the installation state. When the locking rod (53) leaves the inside of the locking groove (59), the carbon brush body (2) is in the replacement state.

6. A carbon brush assembly for easy replacement of carbon brushes according to claim 5, characterized in that: One side of the support frame (51) is fixed to one side of the carbon brush holder (4), and a housing (9) is provided on the outside of the rotating shaft (1). A wire (8) located on the outside of the carbon brush holder (4) is connected to one side of the carbon brush body (2).

7. A carbon brush assembly for easy replacement of carbon brushes according to claim 1, characterized in that: The prompting component (3) includes a slide column (31), with a first limiting plate (32) and a second limiting plate (34) fixed at both ends of the slide column (31). A tension spring (33) is sleeved on the outside of the slide column (31). The two sides of the tension spring (33) are connected to one side of the first limiting plate (32) and the carbon brush holder (4), respectively. One side of the slide column (31) is inserted into one side of the carbon brush holder (4).

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