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CN-224209646-U - Generator carbon brush grinding device

CN224209646UCN 224209646 UCN224209646 UCN 224209646UCN-224209646-U

Abstract

The utility model provides a generator carbon brush polishing device, which relates to the field of carbon brush polishing and comprises a support, wherein a polishing part which moves circularly is arranged in the middle of the support, a rotating shaft is arranged in the middle of the polishing part, the rotating shaft is rotationally connected to the support, the distance from the edge of the polishing part to the center of the rotating shaft is the same as the radius of a large shaft of a corresponding generator, a fixing frame is fixedly arranged above two sides of the support parallel to the rotating shaft, and a carbon brush is fixed in the fixing frame through bolts. This generator carbon brush grinding device does the circular shaft motion the same with generator major axis radius through setting up the portion of polishing to can carry out polishing of corresponding radian to the carbon brush, thereby can make the carbon brush after polishing laminate with the major axis more.

Inventors

  • WANG YU
  • LI GUIBING
  • LIU HUAN
  • PAN XINXING
  • Wei Jien
  • SONG KE
  • ZHU HUIXIA

Assignees

  • 大唐巩义发电有限责任公司

Dates

Publication Date
20260508
Application Date
20250526

Claims (8)

  1. 1. The generator carbon brush polishing device comprises a support (1) and is characterized in that a polishing part (2) which moves circularly is arranged in the middle of the support (1), a rotating shaft (3) is arranged in the middle of the polishing part (2), the rotating shaft (3) is rotationally connected to the support (1), and the distance from the edge of the polishing part (2) to the center of the rotating shaft (3) is the same as the radius of a large shaft of a corresponding generator; The carbon brush is characterized in that a fixing frame (4) is fixedly arranged above two sides of the support (1) parallel to the rotating shaft (3), the carbon brush is fixed in the fixing frame (4) through bolts, and the center line of the carbon brush is perpendicular to the center line of the rotating shaft (3).
  2. 2. The carbon brush grinding device for the generator, as set forth in claim 1, characterized in that the grinding portion (2) is a roller (201), the outer surface of the roller (201) is covered with sand paper (202), and the distance from the outer surface of the sand paper (202) to the rotating shaft (3) is the same as the radius of the large shaft of the corresponding generator.
  3. 3. The carbon brush polishing device of the generator of claim 2, wherein the rotating shaft (3) comprises a square shaft part in the middle and round shaft parts at two ends, the roller (201) is clamped on the outer surface of the square shaft part, and a plug shaft (209) for limiting the sliding of the roller (201) is arranged on the round shaft part.
  4. 4. The carbon brush grinding device for a generator according to claim 3, wherein the outer ring of the drum (201) is provided with grooves (204), and the grooves (204) are inclined from the middle to both sides.
  5. 5. The carbon brush polishing device for the generator of claim 1, wherein the polishing portion (2) comprises a sleeve (205), a telescopic rod (206) capable of adjusting the telescopic length is arranged on the outer surface of the sleeve (205), a polishing column (207) parallel to the rotating shaft (3) is fixedly arranged at the free end of the telescopic rod (206), sliding limiting rods (208) are fixedly arranged at two sides of the sleeve (205) positioned at the telescopic rod (206), and the free ends of the sliding limiting rods (208) are fixedly connected with the polishing column (207).
  6. 6. The carbon brush grinding device for a generator according to claim 5, wherein a plurality of telescopic rods (206) with adjustable telescopic lengths are fixedly arranged on the outer surface of the sleeve (205) in an annular shape.
  7. 7. The carbon brush polishing device for a generator according to any one of claims 1 to 6, wherein the bracket (1) is provided with a collection box (6) for collecting carbon powder below the polishing portion (2).
  8. 8. The carbon brush polishing device of the generator of claim 7, wherein one end, far away from the rotating shaft (3), of the fixing frame (4) is slidably connected with a baffle plate (5), the baffle plate (5) on the same side integrally slides, and a bolt for fixing the carbon brush is positioned above the fixing frame.

Description

Generator carbon brush grinding device Technical Field The utility model relates to the technical field of carbon brush polishing, in particular to a generator carbon brush polishing device. Background In recent years, the machine set is not stopped due to the burning accident of the excitation carbon brush of the generator. The main reasons of the accident are that part of carbon brushes are not in good contact with the slip ring, the contact resistance is increased, the ignition and the heating are caused, the development and the expansion are rapid, and finally the slip ring is burnt. Resulting in great economic losses. CN220217889U is an electric polishing device for a generator carbon brush, which comprises a fixing base plate, one side fixedly connected with installation cover frame at the bottom of the fixing base plate, one side fixedly connected with fixed block at the top of the installation cover frame, the middle part fixedly connected with mounting panel of fixed block one side, the equal fixedly connected with in middle part of mounting panel both sides is placed the frame, six the equal fixedly connected with adapter sleeve box in middle part of placing frame one side. This technical scheme is through installing cover frame, fixed block, mounting panel, place the frame, adapter sleeve box, pneumatic cylinder, telescopic bracket and grip block's setting, evenly put three in the both sides of mounting panel and place the frame for the device can be simultaneously to six carbon brushes handle of polishing, and the output of pneumatic cylinder drives telescopic bracket and adjusts length treatment, makes telescopic bracket drive the grip block of front end and promote forward, is convenient for the grip block then to place the carbon brush centre gripping processing of frame inner wall, thereby has reached the effect to carbon brush mechanical clamping device. But this technical scheme only can be with the protruding part of carbon brush mill, and the contact surface of carbon brush just can laminate more when being the arc. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the generator carbon brush polishing device, and solves the problem that carbon brushes are not polished and attached in the prior art. Technical proposal The generator carbon brush polishing device comprises a support, wherein a polishing part which moves circularly is arranged in the middle of the support, a rotating shaft is arranged in the middle of the polishing part, the rotating shaft is rotatably connected to the support, the distance from the edge of the polishing part to the center of the rotating shaft is the same as the radius of a large shaft of a corresponding generator, a fixing frame is fixedly arranged above two sides of the support parallel to the rotating shaft, carbon brushes are fixed in the fixing frame through bolts, and the center line of each carbon brush is perpendicular to the center line of the rotating shaft. Further, the polishing part is a roller, the outer surface of the roller is covered with sand paper, and the distance from the outer surface of the sand paper to the rotating shaft is the same as the radius of the large shaft of the corresponding generator. Further, the rotary shaft comprises a square shaft part in the middle and round shaft parts at two ends, the roller is clamped on the outer surface of the square shaft part, and a limiting roller sliding inserting shaft is arranged on the round shaft part. Further, the outer ring of the roller is provided with grooves, and the grooves incline from the middle to two sides. Further, the portion of polishing includes the sleeve, telescopic surface is provided with the telescopic link that can adjust flexible length, the free end fixed mounting of telescopic link have with the parallel post of polishing of rotation axis, the sleeve is located the both sides fixed mounting of telescopic link and has the slip gag lever post, the free end of slip gag lever post and post fixed connection of polishing. Further, a plurality of telescopic rods with adjustable telescopic lengths are fixedly arranged on the outer surface of the sleeve in an annular mode. Further, the support is provided with the collection box that is used for collecting the carbon dust in the below of polishing portion. Further, one end of the fixing frame far away from the rotating shaft is slidably connected with a baffle, the baffle on the same side integrally slides, and a bolt for fixing the carbon brush is positioned above the fixing frame. The utility model has the beneficial effects that: 1. This generator carbon brush grinding device does the circular shaft motion the same with generator major axis radius through setting up the portion of polishing to can carry out polishing of corresponding radian to the carbon brush, thereby can make the carbon brush after polishing laminate with the major axis more. 2. This generator carbon brush