CN209754862U

CN209754862U - A grinding tool for hydraulic generator excitation sliding ring carbon brush

Info

Publication number: CN209754862U
Application number: CN201920343519.8U
Authority: CN
Inventors: 韩广
Original assignee: Chongqing Datang International Wulong Hydropower Development Co Ltd
Current assignee: Chongqing Datang International Wulong Hydropower Development Co Ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2019-12-10
Anticipated expiration: 2029-03-18

Abstract

The utility model relates to a motor carbon brush restoration technical field, concretely relates to a grinding tool for hydraulic generator excitation sliding ring carbon brush, include: the carbon brush grinding device comprises a grinding platform, a carbon brush clamp, a grinding plane and a screw rod sliding table; the carbon brush clamp, the polishing plane, the lead screw sliding table and the motor are all arranged on the polishing platform; the carbon brush fixture is connected with the lead screw sliding table through a first connecting plate; the carbon brush fixture is a hollow rectangular shell with two open ends. This application is through placing the carbon brush in carbon brush anchor clamps, and the motion through lead screw slip table drives the motion of carbon brush anchor clamps, and the motion of carbon brush anchor clamps makes the carbon brush come the return movement for the plane of polishing to polish the carbon brush. The carbon brush is clamped by the carbon brush clamp and then polished, so that the problem of uneven manual polishing force is avoided, the carbon brush can be stably and uniformly polished, and the surface of the carbon brush is flat and smooth.

Description

A grinding tool for hydraulic generator excitation sliding ring carbon brush

Technical Field

The utility model relates to a motor carbon brush restoration technical field, concretely relates to a grinding tool for hydraulic generator excitation sliding ring carbon brush.

Background

The hydro-generator uses for a long time, and the excitation slip ring surface is struck sparks and can cause the carbon brush surface to be rough for the carbon brush wearing and tearing are serious, and the slip ring degradation is accelerated, consequently need polish the processing to hydro-generator's carbon brush.

The existing polishing is performed by manually sliding back and forth on a polishing plane, and the polishing precision is poor due to uneven force application in the manual polishing method.

Disclosure of Invention

The utility model discloses polish to polishing the carbon brush through the manual work at present because the uneven problem that causes the precision of polishing poor of carbon brush atress provides a grinding tool for hydraulic generator excitation sliding ring carbon brush.

In order to achieve the above purpose, the invention provides the following technical scheme:

A grinding tool for a hydro-generator excitation slip ring carbon brush comprises: the carbon brush grinding device comprises a grinding platform, a carbon brush clamp, a grinding plane and a screw rod sliding table; the carbon brush clamp, the polishing plane, the lead screw sliding table and the motor are all arranged on the polishing platform; the carbon brush fixture is connected with the lead screw sliding table through a first connecting plate; the carbon brush fixture is a hollow rectangular shell with two open ends.

Preferably, a second connecting plate is connected to one side wall of the carbon brush fixture, and two rows of threaded holes are formed in the second connecting plate; and selecting the threaded holes with different heights for connection according to the pressure applied to the carbon brush.

preferably, one side of the carbon brush fixture, which is far away from the second connecting plate, extends outwards to form a protrusion, and an elastic piece is mounted on the protrusion. The carbon brush is fixed through the elastic piece, and the carbon brush cannot shake in the polishing process.

Preferably, the elastic member is a spiral spring.

Preferably, the elastic piece is a V-shaped elastic piece, and the V-shaped elastic piece is connected with a limiting piece; and the protrusion is provided with a hole matched with the limiting part. The position of the V-shaped elastic sheet is limited through the matching of the limiting part and the opening, so that the V-shaped elastic sheet does not slide up and down.

Preferably, a first travel switch and a second travel switch are installed on the screw rod sliding table. Travel switches are arranged at two ends of the carbon brush clamp to ensure that the carbon brush clamp drives the carbon brush to move in a grinding plane.

Preferably, the grinding tool further comprises a motor, and the motor is connected with the screw rod sliding table. The reciprocating motion of the screw rod sliding table is controlled through the motor, so that manpower can be reduced, and the working efficiency is improved.

Compared with the prior art, the invention has the beneficial effects that: this application is through placing the carbon brush in carbon brush anchor clamps, and the motion through lead screw slip table drives the motion of carbon brush anchor clamps, and the motion of carbon brush anchor clamps makes the carbon brush come the return movement for the plane of polishing to polish the carbon brush. The carbon brush is clamped by the carbon brush clamp and then polished, so that the problem of uneven manual polishing force is avoided, the carbon brush can be stably and uniformly polished, and the surface of the carbon brush is flat and smooth.

description of the drawings:

Fig. 1 is a top view of a polishing tool for a hydro-generator excitation slip ring carbon brush provided by the present invention;

FIG. 2 is a first diagram illustrating a portion of the structure of FIG. 1;

FIG. 3 is a second schematic view of a portion of the mechanism of FIG. 1;

fig. 4 is a schematic structural view of the V-shaped spring.

The labels in the figure are: 1-grinding platform, 2-grinding plane, 3-carbon brush fixture, 4-lead screw sliding table, 5-first connecting plate, 6-second connecting plate, 61-threaded hole, 7-protrusion, 71-hole, 8-elastic piece, 81-limiting piece, 9-first travel switch, 10-second travel switch, 11-motor and 12-carbon brush.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

in the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The application provides a grinding tool for hydraulic generator excitation sliding ring carbon brush includes: the carbon brush grinding device comprises a grinding platform 1, a carbon brush clamp 3, a grinding plane 2 and a screw rod sliding table 4; the carbon brush fixture 3, the polishing plane 2, the lead screw sliding table 4 and the motor 11 are all installed on the polishing platform 1. The grinding plane 2 is installed on the grinding platform 1 through a bolt, and the carbon brush fixture 3 is connected with the lead screw sliding table 4 through a first connecting plate 5; the carbon brush holder 3 is a hollow housing with openings at both ends. The size of the carbon brush holder 3 is matched with the size of the carbon brush 12 to be polished. A second connecting plate 6 is connected to one side wall of the carbon brush fixture 3, and two rows of threaded holes 61 are formed in the second connecting plate 6; the second connecting plate 6 is connected to the first connecting plate 5 by bolts. One side of the carbon brush clamp 3, which is far away from the second connecting plate 6, extends outwards to form a protrusion 7, and an elastic part 8 is installed on the protrusion 7. The elastic piece 8 is a spiral spring or a V-shaped elastic piece, and the spiral spring is fixedly arranged on the protrusion 7. A limiting piece 81 is welded on the V-shaped elastic piece; the protrusion 7 is provided with an opening 71 matched with the limiting member 81. And a first travel switch 9 and a second travel switch 10 are installed at two ends of the screw rod sliding table 4 and used for limiting the movement range of the carbon brush fixture 3, so that the carbon brush fixture 3 is ensured to drive the carbon brush 12 to move on the grinding plane 2. The motor 11 is connected to the screw rod sliding table 4, manpower can be reduced by controlling the movement of the screw rod sliding table 4 through the motor 11, and the motor 11 can select the stepping motor 11 with higher precision. The grinding tool further comprises a controller, the stepping motor 11 is connected with the controller, the two forming switches are also connected with the controller, and the controller controls the forward and reverse rotation of the stepping motor 11, so that the carbon brush clamp 3 is driven to reciprocate to grind the bottom surface of the carbon brush 12.

When the carbon brush grinding tool is used, firstly, the spiral spring or the V-shaped elastic sheet is compressed, the carbon brush 12 is placed in the carbon brush clamp 3, then the carbon brush 12 is clamped through the elastic piece 8, and the threaded holes 61 with different heights are selected according to the pressure required for grinding the carbon brush 12 to connect the second connecting plate 6 with the first connecting plate 5; and then the motor 11 is started, the carbon brush 12 clamp 3 moves upwards through the forward rotation of the motor 11, after the sliding table of the screw rod sliding table 4 touches the first travel switch 9, the motor 11 rotates reversely, the carbon brush 12 clamp 3 moves downwards, after the sliding table of the screw rod sliding table 4 touches the second travel switch 10, the motor 11 starts to rotate forwards, and the carbon brush clamp 3 moves upwards. The carbon brush holder 3 drives the carbon brush 12 to reciprocate up and down, thereby polishing the carbon brush 12.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a burnisher for hydraulic generator excitation sliding ring carbon brush which characterized in that includes: the carbon brush grinding device comprises a grinding platform (1), a carbon brush clamp (3), a grinding plane (2) and a screw rod sliding table (4); the carbon brush clamp (3), the grinding plane (2) and the lead screw sliding table (4) are all arranged on the grinding platform (1); the carbon brush clamp (3) is connected with the lead screw sliding table (4) through a first connecting plate (5); the carbon brush fixture (3) is a hollow rectangular shell with two open ends.

2. The grinding tool for the carbon brush of the excitation slip ring of the hydro-generator according to claim 1, wherein a second connecting plate (6) is connected to one side wall of the carbon brush clamp (3), and two rows of threaded holes (61) are formed in the second connecting plate (6).

3. The grinding tool for the carbon brush of the excitation slip ring of the hydro-generator according to claim 2, wherein one side, away from the second connecting plate (6), of the carbon brush clamp (3) extends outwards to form a protrusion (7), and an elastic piece (8) is installed on the protrusion (7).

4. The sanding tool for carbon brushes of hydro-generator excitation slip rings according to claim 3, characterized in that the resilient member (8) is a helical spring.

5. The grinding tool for the carbon brush of the excitation slip ring of the hydro-generator according to claim 3, wherein the elastic piece (8) is a V-shaped elastic piece, and a limiting piece (81) is connected to the V-shaped elastic piece; the protrusion (7) is provided with an opening (71) matched with the limiting piece (81).

6. The grinding tool for the carbon brush of the excitation slip ring of the hydro-generator according to claim 1, wherein a first travel switch (9) and a second travel switch (10) are mounted on the screw rod sliding table (4).

7. The grinding tool for the carbon brush of the excitation slip ring of the hydro-generator according to claim 1, further comprising a motor (11), wherein the motor (11) is connected with the screw rod sliding table (4).