CN220051348U - Automatic grinder of hydro-generator carbon brush - Google Patents
Automatic grinder of hydro-generator carbon brush Download PDFInfo
- Publication number
- CN220051348U CN220051348U CN202321257975.3U CN202321257975U CN220051348U CN 220051348 U CN220051348 U CN 220051348U CN 202321257975 U CN202321257975 U CN 202321257975U CN 220051348 U CN220051348 U CN 220051348U
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- China
- Prior art keywords
- brush
- carbon brush
- cambered surface
- motor
- convex cambered
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 57
- 244000137852 Petrea volubilis Species 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses an automatic grinding device for carbon brushes of a hydraulic generator, which comprises a motor, wherein an output shaft and a power switch are connected to the motor; the crankcase is arranged on the output shaft; a convex cambered surface is arranged on the crankcase, and sand paper is arranged and fixed on the convex cambered surface; the brush frame is arranged corresponding to the convex cambered surface; the brush holder is provided with a groove for installing the carbon brush, and the opening of the groove faces the convex cambered surface. The grinding device is driven by the motor, the crank case drives the convex cambered surface to rotate back and forth to grind the carbon brush, manual grinding is replaced, the grinding efficiency of the carbon brush is improved, and the grinding precision of the cambered surface of the carbon brush is high.
Description
Technical Field
The utility model belongs to the technical field of carbon brush grinding, and particularly relates to an automatic grinding device for carbon brushes of a hydraulic generator.
Background
Currently, each power system generator uses carbon brushes to contact the generator slip rings to generate electricity. Carbon brushes are a consumable item, and when the wear of the carbon brushes exceeds two thirds, the carbon brushes need to be replaced in time.
The end face of the new carbon brush is a plane, and when the new carbon brush is directly contacted with the generator slip ring, a gap exists between the new carbon brush and the generator slip ring, so that an arc can be generated, the temperature is too high, the generator slip ring is burnt, and the abrasion of the carbon brush is increased. In order to avoid the problems, the end face of the new carbon brush needs to be ground to form an arc surface which is consistent with the fit of the generator slip ring.
In order to grind the carbon brush to form a required cambered surface, the new carbon brush is directly manually ground on the corresponding generator slip ring for a plurality of times, the grinding mode is low in efficiency, time-consuming and labor-consuming, the grinding precision of the cambered surface of the carbon brush is low, and the service life of the carbon brush is influenced.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide an automatic grinding device for carbon brushes of a hydraulic generator.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the automatic grinding device for the carbon brush of the hydraulic generator comprises a motor, wherein an output shaft and a power switch are connected to the motor;
the crankcase is arranged on the output shaft; a convex cambered surface is arranged on the crankcase, and sand paper is arranged and fixed on the convex cambered surface;
the brush frame is arranged corresponding to the convex cambered surface; the brush holder is provided with a groove for installing the carbon brush, and the opening of the groove faces the convex cambered surface.
Preferably, the radian of the convex cambered surface is equal to that of the generator slip ring, and the smoothness of the convex cambered surface is more than 0.8.
Preferably, a spring is arranged in the groove, and the spring is arranged opposite to the opening of the groove.
Preferably, a brush seat is arranged at the bottom of the brush frame; the brush seat is arranged on the fixed support and is detachably connected with the fixed support.
Preferably, screw holes are formed in positions, corresponding to the brush seat and the fixing support, of the brush seat, and the brush seat is detachably connected with the fixing support through screws penetrating through the screw holes.
Preferably, a handle is provided at the end of the brush holder facing away from the recess opening.
Preferably, the motor is arranged on the base, and the fixed support and the motor are arranged on the base.
Preferably, the motor is a three-phase motor.
Compared with the prior art, the utility model has the following advantages:
according to the automatic grinding device for the carbon brush of the hydraulic generator, disclosed by the utility model, the carbon brush is ground by driving the motor and driving the convex cambered surface to rotate back and forth through the crank case, so that manual grinding is replaced, the grinding efficiency of the carbon brush is improved, and the grinding precision of the cambered surface of the carbon brush is high.
Drawings
In order to more clearly illustrate the technical solutions of specific embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of an automatic carbon brush grinding device for a hydraulic generator according to the present utility model;
reference numerals: the device comprises a motor 1, an output shaft 2, a power switch 3, a crank case 4, a convex arc surface 5, a brush holder 6, a spring 7, a brush seat 8, a fixed support 9, a screw hole 10, a handle 11, a base 12 and a carbon brush 13.
Detailed Description
The present utility model will be further described with reference to the drawings and the specific embodiments, but it should not be construed that the scope of the subject matter of the present utility model is limited to the following embodiments, and various modifications, substitutions and alterations made according to the ordinary skill and familiar means of the art to which this utility model pertains are included within the scope of the present utility model without departing from the above technical idea of the utility model.
The end face of the carbon brush 13 is a plane, and when the hydro-generator uses the carbon brush 13 to contact with the generator slip ring to generate electricity, in order to avoid gaps between the carbon brush and the generator slip ring, an arc is generated. Firstly, the plane of the carbon brush 13 needs to be ground into an arc surface which is consistent with the slip ring of the generator, and then the arc surface contacts with the slip ring of the generator to generate electricity.
Referring to fig. 1, an automatic grinding device for carbon brushes of a hydro-generator according to the present utility model is used for grinding end surfaces of carbon brushes 13. The device comprises a motor 1, wherein the motor 1 is a three-phase motor and is arranged on a base 12. An output shaft 2 and a power switch 3 are connected to the motor 1; the power switch 3 is a three-phase alternating current power switch to control the start and stop of the motor 1.
In this embodiment, the output shaft 2 is connected with the crankcase 4 through a coupling bolt; the crankcase 4 is provided with a convex cambered surface 5, sand paper is arranged and fixed on the convex cambered surface 5, the sand paper is arranged at one end of the convex cambered surface 5 which is not connected with the crankcase 4, the crankcase 4 drives the convex cambered surface 5 to rotate back and forth, and further the sand paper is driven to grind the carbon brush 13. The radian of the convex cambered surface 5 is equal to that of the generator slip ring; and the finish of the convex cambered surface 5 is more than 0.8. The convex cambered surface 5 and the sand paper are arranged, and a cambered surface which is consistent with the slip ring of the generator in a fitting way can be ground on the carbon brush 13. In this embodiment, the convex arc surface 5 is fixed on the side wall of the crankcase 4 by a screw, so that different convex arc surfaces can be replaced conveniently. In other embodiments, the convex arc surface 5 may be in welded connection with the crankcase weld 4.
The brush frame 6 is arranged corresponding to the convex cambered surface 5; a groove (not shown in the figure) for mounting the carbon brush 13 is provided on the brush holder 6, and an opening of the groove is provided toward the convex arc surface 5. A spring 7 is arranged in the groove, and the spring 7 is arranged opposite to the opening of the groove; the arrangement of the spring 7 prevents the carbon brush 13 and even the convex arc surface 5 from being worn when the carbon brush 13 is placed in the groove for processing.
A brush holder 8 is provided at the bottom of the brush holder 6, and the brush holder 8 is used for mounting the brush holder 6. The brush holder 8 is mounted on the fixed support 9 and is detachably connected with the fixed support 9. Specifically, screw holes 10 are formed at positions corresponding to the brush holder 8 and the fixing bracket 9, and the brush holder 8 is detachably connected with the fixing bracket 9 by screws (not shown in the figure) penetrating through the screw holes 10; the four screw holes 10 are correspondingly arranged, and are distributed on two sides of the brush frame 6 in a group; the screw may be a socket head cap screw. The length of the brush holder 8 is greater than the length of the brush holder 6, so that the screws fix the brush holder 8 to the fixing bracket 9.
The fixed bracket 9 is installed on the base 12, and the height of the fixed bracket is set to ensure that the surface to be processed of the carbon brush 13 installed in the brush frame 6 is correspondingly set with the convex cambered surface 5.
A handle 11 is provided at the end of the brush holder 6 facing away from the recess opening.
When the carbon brush 13 grinds, the carbon brush 13 is fixed in the groove of the brush holder 6, a plane to be ground of the carbon brush 13 is installed towards the convex cambered surface 5, the handle 11 is held, then the motor 1 is started, force is transferred to the crank case 4 through the output shaft 2, the crank case 4 drives the convex cambered surface 5 to rotate back and forth, and sand paper is driven to grind the carbon brush 13.
The automatic grinding device for the carbon brush of the hydraulic generator provided by the utility model is described in detail, and specific examples are applied to explain the structure and the working principle of the utility model, and the description of the above embodiments is only used for helping to understand the method and the core idea of the utility model. It should be noted that it will be apparent to those skilled in the art that various improvements and modifications can be made to the present utility model without departing from the principles of the utility model, and such improvements and modifications fall within the scope of the appended claims.
Claims (8)
1. An automatic grinder of hydro-generator carbon brush, its characterized in that: the motor comprises a motor (1), wherein an output shaft (2) and a power switch (3) are connected to the motor (1);
the crankcase (4) is arranged on the output shaft (2); a convex cambered surface (5) is arranged on the crankcase (4), and sand paper is arranged and fixed on the convex cambered surface (5);
the brush frame (6) is arranged corresponding to the convex cambered surface (5); a groove for installing a carbon brush (13) is arranged on the brush holder (6), and the opening of the groove is arranged towards the convex cambered surface (5).
2. The automatic carbon brush grinding device for a hydraulic generator according to claim 1, wherein: the radian of the convex cambered surface (5) is equal to that of the generator slip ring; and the finish degree of the convex cambered surface (5) is more than 0.8.
3. The automatic carbon brush grinding device for a hydraulic generator according to claim 1, wherein: a spring (7) is arranged in the groove, and the spring (7) is arranged opposite to the opening of the groove.
4. The automatic carbon brush grinding device for a hydraulic generator according to claim 1, wherein: a brush seat (8) is arranged at the bottom of the brush frame (6); the brush seat (8) is arranged on the fixed support (9) and is detachably connected with the fixed support (9).
5. The automatic carbon brush grinding device for a hydraulic generator according to claim 4, wherein: screw holes (10) are formed in positions, corresponding to the brush seat (8) and the fixed support (9), of the brush seat (8), and the brush seat (8) is detachably connected with the fixed support (9) through screws penetrating through the screw holes (10).
6. The automatic carbon brush grinding device for a hydraulic generator according to claim 1, wherein: a handle (11) is arranged at one end of the brush holder (6) which is far away from the opening of the groove.
7. The automatic carbon brush grinding device for a hydraulic generator according to claim 4, wherein: the motor also comprises a base (12), and the fixed bracket (9) and the motor (1) are arranged on the base (12).
8. The automatic carbon brush grinding device for a hydraulic generator according to any one of claims 1 to 7, wherein: the motor (1) is a three-phase motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321257975.3U CN220051348U (en) | 2023-05-23 | 2023-05-23 | Automatic grinder of hydro-generator carbon brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321257975.3U CN220051348U (en) | 2023-05-23 | 2023-05-23 | Automatic grinder of hydro-generator carbon brush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220051348U true CN220051348U (en) | 2023-11-21 |
Family
ID=88755886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321257975.3U Active CN220051348U (en) | 2023-05-23 | 2023-05-23 | Automatic grinder of hydro-generator carbon brush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220051348U (en) |
-
2023
- 2023-05-23 CN CN202321257975.3U patent/CN220051348U/en active Active
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