Power generator carbon brush grinding device

Abstract

The utility model discloses a generator carbon brush grinding device and relates to the technical field of carbon brush grinding devices, a rotary grinding mechanism comprises a grinding wheel and a crank, the grinding wheel is arranged at the top of a support frame and rotatably connected with the support frame, and the crank is connected with the top of the grinding wheel and used for pushing the grinding wheel to rotate; the carbon brush fixing mechanism comprises a carbon brush socket, a rotating frame, a pressing rod and a spring, the carbon brush socket is fixed to the top of the supporting frame, an insertion opening of the carbon brush socket faces the side wall, used for polishing, of the polishing grinding wheel, the rotating frame is rotationally connected with the side wall of the carbon brush socket, and the pressing rod penetrates through a sleeve on the upper portion of the rotating frame and then tightly presses the carbon brush. And the other end of the spring is connected with the fixing block. Through cooperation of the rotary grinding mechanism and the carbon brush fixing mechanism, rapid and safe grinding of the generator carbon brush is achieved, and the working efficiency and the grinding quality are improved. And a plurality of carbon brushes can be ground at the same time, so that the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon brush grinding devices, in particular to a generator carbon brush grinding device. Background Art

[0002] The generator excitation carbon brush is a device for transmitting electrical energy between the dynamic and static parts of the rotating machinery in the generator. The DC voltage rectified by the rectifier is sent to the rotating slip ring on the rotor through the carbon brush, so that the rotor of the generator continuously generates magnetic poles and the stator coil of the generator cuts the magnetic lines of force with the magnetic field. During the carbon brush transmission process, the running excitation carbon brush needs to be inspected and maintained. When the carbon brush is too short, the carbon brush needs to be replaced. However, the new carbon brush is flat and the slip ring is an arc surface. If the new carbon brush is directly installed in the brush holder, it is easy to cause obvious wire jump and poor contact. In severe cases, the carbon brush may be damaged and cause the collector ring to spark. Therefore, the new carbon brush must be ground when replacing the carbon brush. Traditional carbon brush grinding methods are often inefficient and easily cause the grinding surface to be tilted and uneven, resulting in poor fit between the carbon brush angle and the slip ring angle.

[0003] Therefore, a generator carbon brush grinding device has become an urgent problem to be solved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a generator carbon brush grinding device, which can realize fast and safe grinding of the generator carbon brush through the cooperation of a rotating grinding mechanism and a carbon brush fixing mechanism.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a generator carbon brush grinding device, comprising a support frame, a rotating grinding mechanism and a carbon brush fixing mechanism; the rotating grinding mechanism comprises a grinding wheel and a crank, the grinding wheel is arranged on the top of the support frame and is rotatably connected thereto, and the crank is connected to the top of the grinding wheel to drive the grinding wheel to rotate;

[0006] The carbon brush fixing mechanism includes a carbon brush socket, a rotating frame, a pressure rod and a spring. The carbon brush socket is fixed on the top of the support frame. The socket of the carbon brush socket faces the side wall for grinding by the grinding wheel. The rotating frame is rotatably connected to the side wall of the carbon brush socket. The pressure rod passes through the sleeve on the upper part of the rotating frame and presses the carbon brush. A detachable fixing block is provided on the pressure rod. One end of the spring is connected to the sleeve and the other end is connected to the fixing block.

[0007] Furthermore, a plurality of carbon brush fixing mechanisms are arranged around the rotary grinding mechanism.

[0008] Furthermore, the fixing block is a nut, the end of the pressure rod is a threaded rod, and the nut and the threaded rod are detachably connected.

[0009] Furthermore, a support block is provided on the top of the support frame, and the support block is arranged outside the carbon brush fixing mechanism. When the pressure rod presses the carbon brush to fix it, the support block supports the rotating frame to keep it horizontal.

[0010] The advantages of the utility model compared with the prior art are:

[0011] 1. The utility model realizes fast and safe grinding of generator carbon brushes through the cooperation of the rotary grinding mechanism and the carbon brush fixing mechanism, thereby improving the working efficiency and grinding quality.

[0012] 2. The utility model has several carbon brush fixing mechanisms arranged around the rotating grinding mechanism, which can grind multiple carbon brushes at the same time, further improving the working efficiency.

[0013] 3. The pressure rod of the utility model adopts a structure in which a nut and a threaded rod cooperate, which is convenient for adjusting the compression degree of the spring, and then adjusting the fixing force of the pressure rod to adapt to carbon brushes of different specifications.

[0014] 4. The support frame of the utility model is provided with a support block for supporting the rotating frame and maintaining its horizontal state when the pressure rod presses the carbon brush, thereby ensuring the uniformity and stability of grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of a generator carbon brush grinding device.

[0016] Figure 2 The utility model is a front view of a generator carbon brush grinding device.

[0017] Figure 3 The utility model is a top view of a generator carbon brush grinding device.

[0018] Figure 4 The utility model is a bottom view of a generator carbon brush grinding device.

[0019] Figure 5 yes Figure 1 A magnified view of the structure in the middle.

[0020] As shown in the figure: 1. Support frame, 101. Support leg, 102. Support plate, 103. Reinforcement rib, 2. Rotary grinding mechanism, 201. Grinding wheel, 202. Crank, 3. Carbon brush fixing mechanism, 301. Carbon brush socket, 302. Rotating frame, 303. Pressure rod, 304. Spring, 305. Sleeve, 306. Nut, 307. Threaded rod, 308. Handle, 4. Support block. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inside", "outside", "vertical", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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 therefore should not be understood as a limitation on the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The following is a further detailed description of a generator carbon brush grinding device of the utility model in conjunction with the accompanying drawings.

[0024] Combined with Figure 1-5 , the utility model is introduced in detail.

[0025] A generator carbon brush grinding device comprises a support frame 1, a rotary grinding mechanism 2 and a carbon brush fixing mechanism 3;

[0026] The support frame 1 includes a support leg 101 and a support plate 102. The support leg 101 is arranged at the bottom of the support plate 102. The rotary grinding mechanism 2, the carbon brush fixing mechanism 3 and the support block 4 are all arranged at the top of the support plate 102. The structure is compact and stable.

[0027] The rotating grinding mechanism 2 includes a grinding wheel 201 and a crank 202. The grinding wheel 201 is arranged on the top of the support frame 1 and is rotatably connected thereto. The crank 202 is connected to the top of the grinding wheel 201 to push the grinding wheel 201 to rotate. The crank 202 is a three-section bent rod, which is convenient for the operator to shake the crank 202 from different angles and positions, so that the rotation of the grinding wheel 201 is more flexible.

[0028] The carbon brush fixing mechanism 3 includes a carbon brush socket 301, a rotating frame 302, a pressure rod 303 and a spring 304; the carbon brush socket 301 is fixed on the top of the support frame 1, and its socket faces the side wall of the grinding wheel 201 for grinding. The rotating frame 302 is rotatably connected to the side wall of the carbon brush socket 301, and the pressure rod 303 passes through the sleeve 305 on the upper part of the rotating frame 302 to press the carbon brush; a detachable fixing block is provided on the pressure rod 303, and one end of the spring 304 is connected to the sleeve 305 and the other end is connected to the fixing block.

[0029] Preferably, the fixing block is a nut 306, the end of the pressure rod 303 is a threaded rod 307, and the nut 306 and the threaded rod 307 are detachably connected to facilitate adjustment of the pressing force of the pressure rod 303 on the carbon brush.

[0030] Preferably, a handle 308 is provided on the top of the pressure rod 303 to facilitate the operator to hold and rotate the pressure rod 303 .

[0031] Preferably, the rotating frame 302 is an L-shaped frame, one end of which is rotatably connected to the carbon brush socket 301 and the other end is fixedly connected to the sleeve 305, and the structure is simple and stable.

[0032] Preferably, the support frame 1 is provided with reinforcing ribs 103 for connecting and reinforcing the supporting legs 101 to improve the stability and durability of the entire device.

[0033] In one embodiment of the present application, a support block 4 is further provided on the top of the support frame 1, which is arranged outside the carbon brush fixing mechanism 3 and is used to support the rotating frame 302 to keep it horizontal when the pressure rod 303 presses the carbon brush.

[0034] In one embodiment of the present application, a plurality of carbon brush fixing mechanisms 3 are arranged around the rotating grinding mechanism 2, so that a plurality of carbon brushes can be ground simultaneously, thereby improving the grinding efficiency.

[0035] The specific implementation process of the utility model of a generator carbon brush grinding device is as follows:

[0036] In specific use, the operator first inserts the carbon brush to be ground into the carbon brush socket 301, and then rotates the handle 308 on the pressure rod 303 to press down and compact the carbon brush. At this time, the spring 304 is in a compressed state, providing a stable compacting force for the pressure rod 303. Then, the operator rotates the grinding wheel 201 by shaking the crank 202 to grind the carbon brush. After grinding, the operator can loosen the pressure rod 303, take out the ground carbon brush, and perform the next round of grinding operation.

[0037] The generator carbon brush grinding device of the utility model can realize automatic, efficient and stable grinding of the generator carbon brush, improve the grinding efficiency and grinding quality, and reduce the maintenance cost and time.

[0038] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A generator carbon brush grinding device, characterized in that: The invention comprises a support frame (1), a rotary grinding mechanism (2) and a carbon brush fixing mechanism (3); the rotary grinding mechanism (2) comprises a grinding wheel (201) and a crank (202); the grinding wheel (201) is arranged on the top of the support frame (1) and is rotatably connected thereto; the crank (202) is connected to the top of the grinding wheel (201) and is used to drive the grinding wheel (201) to rotate; The carbon brush fixing mechanism (3) comprises a carbon brush socket (301), a rotating frame (302), a pressure rod (303) and a spring (304); the carbon brush socket (301) is fixed on the top of the support frame (1); the socket of the carbon brush socket (301) faces the side wall for grinding by the grinding wheel (201); the rotating frame (302) is rotatably connected to the side wall of the carbon brush socket (301); the pressure rod (303) passes through a sleeve (305) on the upper part of the rotating frame (302) and then presses the carbon brush; a detachable fixing block is provided on the pressure rod (303); one end of the spring (304) is connected to the sleeve (305) and the other end is connected to the fixing block.

2. A generator carbon brush grinding device according to claim 1, characterized in that: A plurality of carbon brush fixing mechanisms (3) are arranged around the rotary grinding mechanism (2).

3. A generator carbon brush grinding device according to claim 1 or 2, characterized in that: The fixing block is a nut (306), the end of the pressure rod (303) is a threaded rod (307), and the nut (306) and the threaded rod (307) are detachably connected.

4. A generator carbon brush grinding device according to claim 3, characterized in that: A handle (308) is provided on the top of the pressure rod (303).

5. A generator carbon brush grinding device according to claim 4, characterized in that: The rotating frame (302) is an L-shaped frame, one end of which is rotatably connected to the carbon brush socket (301), and the other end of which is fixedly connected to the sleeve (305).

6. A generator carbon brush grinding device according to claim 5, characterized in that: A support block (4) is also provided on the top of the support frame (1). The support block (4) is arranged outside the carbon brush fixing mechanism (3). When the pressure rod (303) presses the carbon brush to fix it, the support block (4) supports the rotating frame (302) to keep it horizontal.

7. A generator carbon brush grinding device according to claim 6, characterized in that: The crank (202) is a three-section bent rod.

8. A generator carbon brush grinding device according to claim 7, characterized in that: The support frame (1) comprises a support leg (101) and a support plate (102); the support leg (101) is arranged at the bottom of the support plate (102); and the rotary grinding mechanism (2), the carbon brush fixing mechanism (3) and the support block (4) are all arranged at the top of the support plate (102).

9. A generator carbon brush grinding device according to claim 8, characterized in that: The support frame (1) is provided with reinforcing ribs (103) for connecting and reinforcing the various support legs (101).

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