Automatic grinding device for hydro-generator carbon brush

Abstract

The utility model relates to the technical field of generators, and discloses a hydro-generator carbon brush automatic grinding device which comprises a workbench, the upper surface of the workbench is rotationally connected with a mounting shaft, and the mounting shaft is subjected to edge cutting treatment. According to the automatic grinding device for the hydro-generator carbon brushes, the purpose of fixing the carbon brushes of different specifications can be achieved through the arranged fixing assembly, the purpose of conveniently replacing the grinding wheel by a user can be achieved through threaded connection of the grinding wheel and the mounting shaft, and the grinding efficiency is improved by replacing the grinding wheels of different diameters and thicknesses. According to the automatic polishing device for the carbon brushes, a user can conveniently polish the carbon brushes with different radians, the purpose that each fixing assembly gets close to a polishing wheel at the same time can be achieved through downward movement of a plurality of arranged lifting discs, the effect of automatically polishing the multiple carbon brushes at the same time is achieved, and the machining efficiency is effectively improved; and the purpose of collecting dust generated by polishing can be achieved, and the workshop environment and the body health of workers are protected.

Description

Technical Field

[0001] The present application relates to the technical field of generators, and in particular to an automatic grinding device for carbon brushes of a hydro-turbine generator. Background Art

[0002] The turbine carbon brush is a component used to transfer current from the rotating part of the rotating motor or generator to the fixed part. It plays an important role in maintaining the electrical contact of the unit and controlling the current of the unit in the turbine generator. During the power generation process, when the turbine generator rotates, the electromagnetic induction generates a potential difference. The carbon brush transmits the electrical energy to the outside world through the conductor of the main circuit and plays a role in protecting the stator.

[0003] The existing patent (Announcement No.: CN217668695U) discloses a generator carbon brush grinder, including a grinder body, including a column, a rotating rod arranged on the outside of the column, an arc plate arranged on the top of the column, sandpaper arranged on the top of the arc plate, and a fixed groove arranged on the inner side of the rotating rod, and the column includes a base arranged at the bottom, and a mounting hole arranged inside the base. The device described in the utility model fixes the carbon brush inside the fixed groove, and then pushes the rotating rod, and drives the carbon brush inside the fixed groove to grind on the sandpaper on the upper part of the arc plate through the rotating rod. The curvature of the arc plate is completely consistent with the curvature of the on-site exciter. The carbon brush polished by the grinder can be used directly, and the curvature will fit perfectly, which solves the problem that it is difficult to perfectly combine with the curvature whether it is polished manually or using an angle grinder, and failures may occur during polishing, resulting in damage to the carbon brush.

[0004] The above-mentioned grinding device fixes the carbon brush inside the fixed groove, and then pushes the rotating rod, which drives the carbon brush inside the fixed groove to grind on the sandpaper on the upper part of the arc plate. However, due to the long grinding time of the carbon brush, the above-mentioned device has high labor intensity when used, and can only grind a small amount of carbon brushes at the same time, with low efficiency. Secondly, during the grinding process, due to the close distance of the workers, the dust generated by the grinding can easily enter the user's eyes and lungs, affecting their health. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides an automatic grinding device for carbon brushes of a hydro-turbine generator, which has the advantages of high efficiency, etc., and solves the problem that the grinding time of the carbon brushes is long, the labor intensity of the above-mentioned device is high when used, and only a small number of carbon brushes can be ground at the same time, which has low efficiency. Secondly, during the grinding process, due to the close distance of the workers, the dust generated by the grinding can easily enter the user's eyes and lungs, affecting the health of the body.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an automatic grinding device for carbon brushes of a hydro-turbine generator, comprising a workbench, the upper surface of which is rotatably connected to a mounting shaft, the mounting shaft undergoes an edge chamfering process, the outer surface of which is slidably sleeved with a grinding wheel, the grinding wheel is fixedly connected to the mounting shaft by bolts, and the upper surface of the workbench is provided with a plurality of fixing components arranged in a circumference;

[0007] Each of the fixing components comprises a U-shaped frame, two side threaded rods, two side plates, a push threaded rod and a push plate;

[0008] A dust collecting pan is arranged above the workbench, a plurality of dust collecting nozzles arranged in a circumference are fixedly connected to the bottom of the dust collecting pan, and a connecting pipe is fixedly connected to the upper surface of the dust collecting pan.

[0009] Through the above scheme, the purpose of fixing carbon brushes of different specifications can be achieved by setting the fixing component, and the purpose of facilitating the replacement of the grinding wheel by the user can be achieved by setting the threaded connection between the grinding wheel and the mounting shaft, and the purpose of grinding carbon brushes of different curvatures can be easily polished by the user by replacing grinding wheels of different diameters and thicknesses, and the purpose of each fixing component approaching the grinding wheel at the same time can be achieved by the downward movement of the set multiple lifting plates, thereby achieving the effect of automatically grinding multiple carbon brushes at the same time, effectively improving the processing efficiency, and the purpose of collecting dust generated by grinding can be achieved by setting the dust suction plate and the dust suction nozzle, thereby protecting the workshop environment and the health of the workers.

[0010] Furthermore, a plurality of support legs arranged in a circle are fixedly connected to the outer surface of the workbench.

[0011] Through the above solution and the provision of supporting legs, the purpose of supporting the workbench can be achieved.

[0012] Furthermore, a motor is provided below the workbench, the output end of the motor is fixedly connected to the bottom end of the mounting shaft, a fixing ring is fixedly connected to the outer surface of the motor, and a plurality of circumferentially arranged fixing columns are fixedly connected to the upper surface of the fixing ring.

[0013] Through the above solution, by setting the fixing column and the fixing ring, the purpose of fixing the fixing ring can be achieved.

[0014] Furthermore, each of the side threaded rods is threadedly connected to the U-shaped frame adjacent to it, each of the side plates is rotatably connected to the side threaded rod adjacent to it, each of the pushing threaded rods is threadedly connected to the U-shaped frame adjacent to it, and each of the push plates is rotatably connected to the pushing threaded rod adjacent to it.

[0015] Through the above scheme, the purpose of fixing the external brushes can be achieved by setting the side plates and the push plates.

[0016] Furthermore, a plurality of circumferentially arranged slide grooves are provided on the upper surface of the workbench, a slider is slidably connected to the interior of each slide groove, and each U-shaped frame is fixedly connected to the top of the slider adjacent thereto.

[0017] Through the above scheme, by setting the slide groove and the slider, the purpose of horizontal movement of the U-shaped frame on the workbench surface can be achieved.

[0018] Furthermore, a connecting rib is fixedly connected to the outer surface of each supporting leg, and a top end of each connecting rib is fixedly connected to the dust collecting disc.

[0019] Through the above solution and the provision of the connecting ribs, the purpose of fixing the dust collecting disc can be achieved.

[0020] Furthermore, a vacuum cleaner is provided above the dust collecting disc, and an input end of the vacuum cleaner is fixedly connected to the connecting pipe.

[0021] Through the above scheme, the dust generated by the processing can be processed by setting a vacuum cleaner.

[0022] Furthermore, a lifting plate is provided below the motor, and a plurality of circumferentially arranged connecting rods are hinged inside the lifting plate. The top end of each connecting rod is hinged to the bottom end of the sliding block adjacent to it. Two electric push rods are fixedly embedded on the outer surface of the fixing ring, and the output ends of the two electric push rods are fixedly connected to the lifting plate.

[0023] Through the above scheme, by setting the electric push rod, it is possible to provide power for the up and down movement of the lifting plate.

[0024] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0025] This automatic grinding device for carbon brushes of a hydro-turbine generator can fix carbon brushes of different specifications by means of a fixed component, can facilitate users to replace the grinding wheel by means of a threaded connection between the grinding wheel and the mounting shaft, can facilitate users to grind carbon brushes of different curvatures by replacing grinding wheels of different diameters and thicknesses, can facilitate users to grind carbon brushes of different curvatures by means of the downward movement of a plurality of lifting plates, can achieve the purpose of each fixed component approaching the grinding wheel at the same time, and achieves the effect of automatically grinding a plurality of carbon brushes at the same time, effectively improving the processing efficiency, and can achieve the purpose of collecting dust generated by grinding by means of a dust suction plate and a dust suction nozzle, thereby protecting the workshop environment and the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of the overall structure of this application Figure 1 ;

[0027] Figure 2This is the front view of the overall structure of this application;

[0028] Figure 3 A three-dimensional diagram of the overall structure of this application Figure 2 ;

[0029] Figure 4 This is a schematic diagram of the fixed component structure of this application.

[0030] In the figure:

[0031] 1. Workbench; 2. Mounting shaft; 3. Grinding wheel; 4. Fixing assembly; 401. U-shaped frame; 402. Side threaded rod; 403. Side plate; 404. Push threaded rod; 405. Push plate; 5. Dust suction disc; 6. Dust suction nozzle; 7. Connecting pipe; 8. Support leg; 9. Motor; 10. Fixing ring; 11. Fixing column; 12. Slide groove; 13. Sliding block; 14. Connecting rib; 15. Dust collector; 16. Lifting disc; 23. Connecting rod; 24. Electric push rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, an automatic grinding device for carbon brushes of a hydro-turbine generator includes a workbench 1, the upper surface of the workbench 1 is rotatably connected to a mounting shaft 2, a motor 9 is provided below the workbench 1, the output end of the motor 9 is fixedly connected to the bottom end of the mounting shaft 2, a fixing ring 10 is fixedly connected to the outer surface of the motor 9, and a plurality of circumferentially arranged fixing columns 11 are fixedly connected to the upper surface of the fixing ring 10. By setting the fixing columns 11 and the fixing ring 10, the fixing purpose of the fixing ring 10 can be achieved.

[0034] See also Figure 1 , Figure 2 and Figure 3 The outer surface of the workbench 1 is fixedly connected with a plurality of support legs 8 arranged in a circle. By setting the support legs 8, the purpose of supporting the workbench 1 can be achieved. The mounting shaft 2 is chamfered, and a grinding wheel 3 is slidably sleeved on the outer surface of the mounting shaft 2. The grinding wheel 3 is fixedly connected to the mounting shaft 2 by bolts. The upper surface of the workbench 1 is provided with a plurality of fixed components 4 arranged in a circle.

[0035] See also Figure 1 , Figure 2 and Figure 4 Each fixing assembly 4 includes a U-shaped frame 401, two side threaded rods 402, two side plates 403, a pushing threaded rod 404 and a push plate 405. Each side threaded rod 402 is threadedly connected to the U-shaped frame 401 adjacent to it, each side plate 403 is rotatably connected to the side threaded rod 402 adjacent to it, each pushing threaded rod 404 is threadedly connected to the U-shaped frame 401 adjacent to it, and each push plate 405 is rotatably connected to the pushing threaded rod 404 adjacent to it. By setting the side plates 403 and the push plates 405, the purpose of fixing the external brushes can be achieved.

[0036] See also Figure 1 , Figure 2 and Figure 3 A plurality of circumferentially arranged slide grooves 12 are provided on the upper surface of the workbench 1, and a slider 13 is slidably connected to the interior of each slide groove 12. Each U-shaped frame 401 is fixedly connected to the top of the slider 13 adjacent to it. Through the arrangement of the slide grooves 12 and the slider 13, the purpose of horizontal movement of the U-shaped frame 401 on the surface of the workbench 1 can be achieved. A dust suction plate 5 is provided above the workbench 1, and a plurality of circumferentially arranged dust suction nozzles 6 are fixedly connected to the bottom of the dust suction plate 5, and a connecting pipe 7 is fixedly connected to the upper surface of the dust suction plate 5.

[0037] See also Figure 1 , Figure 2 and Figure 3 The outer surface of each supporting leg 8 is fixedly connected with a connecting rib 14, and the top of each connecting rib 14 is fixedly connected to the dust collecting disc 5. By setting the connecting rib 14, the purpose of fixing the dust collecting disc 5 can be achieved. A dust collector 15 is provided above the dust collecting disc 5, and the input end of the dust collector 15 is fixedly connected to the connecting pipe 7. By setting the dust collector 15, the dust generated by the processing can be processed.

[0038] See also Figure 1 , Figure 2 and Figure 3 A lifting plate 16 is provided below the motor 9, and a plurality of circumferentially arranged connecting rods 23 are hinged inside the lifting plate 16. The top end of each connecting rod 23 is hinged to the bottom end of the sliding block adjacent thereto. Two electric push rods 24 are fixedly inlaid on the outer surface of the fixing ring 10. The output ends of the two electric push rods 24 are fixedly connected to the lifting plate 16. Through the setting of the electric push rods 24, power can be provided for the up and down movement of the lifting plate 16.

[0039] In the present embodiment, an automatic grinding device for carbon brushes of a hydro-turbine generator can fix carbon brushes of different specifications by means of a fixing component 4, and can facilitate users to replace the grinding wheel 3 by means of a threaded connection between the grinding wheel 3 and the mounting shaft 2, and can facilitate users to grind carbon brushes of different curvatures by replacing grinding wheels 3 of different diameters and thicknesses, and can facilitate users to grind carbon brushes of different curvatures by means of the downward movement of the multiple lifting plates 16, so that each fixing component 4 can approach the grinding wheel 3 at the same time, thereby achieving the effect of automatically grinding multiple carbon brushes at the same time, and effectively improving the processing efficiency, and can collect dust generated by grinding by means of the dust suction plate 5 and the dust suction nozzle 6, thereby protecting the workshop environment and the health of workers.

[0040] The working principle of the above embodiment is as follows: when in use, the carbon brush is placed on the U-shaped frame 401, and then the side threaded rod 402 is rotated to drive the side plate 403 to move, so as to fix the carbon brush, and the push plate 405 can be driven to move by rotating the push threaded rod 404, so as to facilitate the limiting of carbon brushes of different lengths, and then the lifting plate 16 is driven downward by driving the electric push rod 24, so that the connecting rod 23 drives the fixing assembly 4 to move along the slide groove 12, so that the carbon brush contacts the grinding wheel 3, and then the motor 9 is started to drive the grinding wheel 3 to rotate, so that multiple carbon brushes can be automatically ground at the same time.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic grinding device for carbon brushes of a hydro-turbine generator, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is rotatably connected to a mounting shaft (2), the mounting shaft (2) is subjected to a chamfering treatment, a grinding wheel (3) is slidably sleeved on the outer surface of the mounting shaft (2), the grinding wheel (3) is fixedly connected to the mounting shaft (2) by bolts, and a plurality of fixing components (4) arranged in a circumference are provided on the upper surface of the workbench (1); Each of the fixing components (4) comprises a U-shaped frame (401), two side threaded rods (402), two side plates (403), a pushing threaded rod (404) and a pushing plate (405); A dust suction pan (5) is provided above the workbench (1); a plurality of dust suction nozzles (6) arranged in a circumferential pattern are fixedly connected to the bottom of the dust suction pan (5); and a connecting pipe (7) is fixedly connected to the upper surface of the dust suction pan (5).

2. The automatic grinding device for carbon brushes of a hydro-generator according to claim 1, characterized in that: A plurality of support legs (8) arranged in a circumferential pattern are fixedly connected to the outer surface of the workbench (1); the support legs (8) are arranged to achieve the purpose of supporting the workbench (1).

3. The automatic grinding device for carbon brushes of a hydro-generator according to claim 1 is characterized in that: A motor (9) is provided below the workbench (1), the output end of the motor (9) is fixedly connected to the bottom end of the mounting shaft (2), a fixing ring (10) is fixedly connected to the outer surface of the motor (9), and a plurality of circumferentially arranged fixing columns (11) are fixedly connected to the upper surface of the fixing ring (10), and the fixing ring (10) can be fixedly connected by arranging the fixing columns (11) and the fixing ring (10), so as to achieve the purpose of fixing the fixing ring (10).

4. The automatic grinding device for carbon brushes of a hydro-generator according to claim 1 is characterized in that: Each of the side threaded rods (402) is threadedly connected to the U-shaped frame (401) adjacent to it, each of the side plates (403) is rotatably connected to the side threaded rod (402) adjacent to it, each of the push threaded rods (404) is threadedly connected to the U-shaped frame (401) adjacent to it, and each of the push plates (405) is rotatably connected to the push threaded rod (404) adjacent to it. By arranging the side plates (403) and the push plates (405), the purpose of fixing the external brushes can be achieved.

5. The automatic grinding device for carbon brushes of a hydro-generator according to claim 1 is characterized in that: The upper surface of the workbench (1) is provided with a plurality of circumferentially arranged slide grooves (12), each of the slide grooves (12) is slidably connected to a slider (13), and each of the U-shaped frames (401) is fixedly connected to the top of the slider (13) adjacent thereto. By setting the slide grooves (12) and the slider (13), the U-shaped frame (401) can be moved horizontally on the surface of the workbench (1).

6. The automatic grinding device for carbon brushes of a hydro-generator according to claim 2, characterized in that: The outer surface of each supporting leg (8) is fixedly connected to a connecting rib (14), and the top end of each connecting rib (14) is fixedly connected to the dust collecting pan (5). By providing the connecting rib (14), the dust collecting pan (5) can be fixed.

7. The automatic grinding device for carbon brushes of a hydro-generator according to claim 1, characterized in that: A dust collector (15) is provided above the dust collecting disc (5); an input end of the dust collector (15) is fixedly connected to the connecting pipe (7); and the dust generated by processing can be processed by the provision of the dust collector (15).

8. The automatic grinding device for carbon brushes of a hydro-generator according to claim 1, characterized in that: A lifting plate (16) is provided below the motor (9), and a plurality of circumferentially arranged connecting rods (23) are hingedly connected inside the lifting plate (16), and the top end of each connecting rod (23) is hingedly connected to the bottom end of a sliding block adjacent thereto. Two electric push rods (24) are fixedly embedded on the outer surface of the fixing ring (10), and the output ends of the two electric push rods (24) are fixedly connected to the lifting plate (16). Through the arrangement of the electric push rods (24), power can be provided for the lifting plate (16) to move up and down.

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