CN220145546U

CN220145546U - Carbon brush grinding device

Info

Publication number: CN220145546U
Application number: CN202321631339.2U
Authority: CN
Inventors: 罗瑞杰; 李玉伟; 段正琼
Original assignee: Hunan Sanchuang Futai Environmental Protection Material Co ltd
Current assignee: Hunan Sanchuang Futai Environmental Protection Material Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-12-08
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses a carbon brush polishing device, which belongs to the technical field of equipment maintenance and comprises a motor slip ring and a reversing roller which is arranged in a rotating way, wherein a polishing piece is wound between the motor slip ring and the reversing roller; the carbon brush is arranged on two sides of the motor slip ring, and the surface to be polished of the carbon brush is contacted with a polishing piece wound on the motor slip ring. Through directly installing the piece of polishing on the motor sliding ring, the motor sliding ring drives the piece of polishing when rotatory and to polish, the cambered surface after guaranteeing polishing as far as possible and the adaptation of sliding ring guarantee the effect of polishing, to large-scale high-voltage motor, can not need dismantling, directly polish, has saved the time of polishing.

Description

Carbon brush grinding device

Technical Field

The utility model belongs to the technical field of equipment maintenance, and particularly relates to a carbon brush polishing device.

Background

The carbon brush is used on a commutator or a slip ring of a motor, is used as a sliding contact body for leading out and leading in current, has good electric conduction, heat conduction and lubricating performance, is generally suitable for various AC/DC generators and synchronous motors, has a small contact surface with the arc slip ring because the contact surface is flat, is not ground, has small contact area, is easy to overheat, is easy to generate sparks, can cause great damage to the carbon brush and the slip ring after overheat, is easy to burn out the slip ring and the carbon brush if fire is generated, and can cause great irreversible damage to equipment if the high-voltage motor fires.

Therefore, when the novel carbon brush is used, the contact surface of the novel carbon brush is required to be ground into the same arc surface as the slip ring, if a large number of carbon brushes are required to be replaced, the contact surface of the novel carbon brush and the slip ring is required to be ground into more than 3/4 after the carbon brushes are ground.

The large motor slip ring is difficult to disassemble, the carbon brush used simultaneously is more, the grinding workload is extremely large, the carbon brush cannot achieve an effect due to the difference of circular arcs when in grinding, the large motor is generally a high-voltage motor, and the requirement of the high-voltage motor on a contact surface is relatively high, so that the grinding time of the carbon brush is extremely long when the motor slip ring or the carbon brush is in a problem.

Disclosure of Invention

Aiming at the problems, the utility model provides a polishing device which is used for solving the problems of difficult polishing and long polishing time of a high-voltage motor.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a polishing device comprises a motor slip ring and a reversing roller which is arranged in a rotating way, wherein a polishing piece is wound between the motor slip ring and the reversing roller; the carbon brush is arranged on two sides of the motor slip ring, and the surface to be polished of the carbon brush is contacted with a polishing piece wound on the motor slip ring.

As a further improvement of the scheme, the two ends of the reversing roller are rotatably provided with supporting seats, and one side surface of each supporting seat is fixedly provided with a powerful magnet for adsorption fixation.

As a further improvement of the scheme, the reversing roller comprises a first plug connector and a second plug connector, wherein the second plug connector is movably plugged at two ends of the first plug connector;

the second plug connector is connected with the supporting seat through a bearing.

As a further improvement of the scheme, the first plug connector is provided with a heat shrinkage tube, and the polishing piece and the heat shrinkage tube are in contact with each other.

As a further improvement of the above solution, the reversing roller comprises a third plug-in connector and a fourth plug-in connector which are movably inserted with each other, and knurling is provided on the surfaces of the third plug-in connector and the fourth plug-in connector.

Compared with the prior art, the utility model has the beneficial effects that:

1. through directly installing the piece of polishing on the motor sliding ring, the motor sliding ring drives the piece of polishing when rotatory and to polish, the cambered surface of carbon brush and the adaptation of sliding ring after guaranteeing to polish as far as possible guarantee the effect of polishing, to large-scale high-voltage motor, can not need to dismantle, directly polish, has saved the time of polishing.

2. Through the powerful magnet that sets up, can make the switching-over roller fixed in suitable position, can adapt to the demand in different positions, and through setting up the switching-over roller into the structure that can the activity grafting first plug connector, second plug connector or third plug connector, fourth plug connector, can change the extension length of switching-over roller for in the position of different width, also can guarantee the normal fixed mounting of switching-over roller.

3. Through the pyrocondensation pipe or the annular knurl that set up, the frictional force between grinding member and the switching-over roller of reinforcing that can be further guarantees the normal operating of grinding member.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a first construction of a reversing roll installation;

FIG. 3 is a schematic cross-sectional view taken in the direction A-A of FIG. 2;

fig. 4 is a schematic view of a second construction of the reversing roll installation.

In the figure: 10. a motor slip ring; 11. a reversing roller; 111. a first plug member; 112. a second plug member; 113. a third plug connector; 114. a fourth plug-in component; 12. a polishing member; 13. a carbon brush; 14. a support base; 15. a strong magnet; 16. a heat shrinkage tube; 17. and (5) knurling.

Detailed Description

In order that those skilled in the art will better understand the technical solutions, the following detailed description of the technical solutions is provided with examples and illustrations only, and should not be construed as limiting the scope of the present patent.

Referring to fig. 1-4, in a specific embodiment, a polishing device includes a motor slip ring 10, and a reversing roller 11 rotatably disposed, in this embodiment, the reversing roller 11 is disposed below the motor slip ring 10, a polishing member 12 is wound between the motor slip ring 10 and the reversing roller 11, and the polishing member 12 is specifically a polishing abrasive belt used, and is fixed after cutting; the carbon brush 13 is arranged at two sides of the motor slip ring 10, the surface to be polished of the carbon brush 13 is contacted with the polishing piece 12 wound on the motor slip ring 10, and the contact position of the carbon brush 13 and the polishing piece 12 can be referred to as shown in fig. 1, at the contact position of the polishing piece 12 and the motor slip ring 10, so that the motor slip ring 10 can directly support the carbon brush 13, the polishing piece 12 is positioned between the motor slip ring 10 and the carbon brush 13, and therefore, in the rotating process of the motor slip ring 10, the polishing piece 12 is driven to interact, and the carbon brush 13 can be polished into an arc surface matched with the outer surface of the motor slip ring 10;

the motor slip ring 10 is mainly driven by adopting a slow drive of a high-voltage motor, the slow drive is a stock function of a large-sized high-voltage motor, when the motor slip ring 10 is not dismounted and the carbon brush 13 is replaced during polishing, and when polishing, the rear cover of the motor can be dismounted, the polishing can be started.

As shown in fig. 2 and 3, as a preferred mode of the above embodiment, the two ends of the reversing roller 11 are rotatably provided with supporting seats 14, one side surface of the supporting seat 14 is fixedly provided with a strong magnet 15 for adsorption fixation, and the strong magnet 15 is mainly used for being adsorbed on the steel plates at two sides of the carbon brush chamber and used for quickly fixing the position of the reversing roller 11; specifically, as a first installation structure of the reversing roller 11, the reversing roller 11 includes a first plug connector 111 and a second plug connector 112, where the first plug connector 111 and the second plug connector 112 are hollow rod members respectively; the second plug-in components 112 are inserted in the both ends of the first plug-in components 111 movably, the plug-in ends of the first plug-in components 111 and second plug-in components 112 set up the slot that cooperates and inserts each other, can guarantee the flexible needs, can guarantee the synchronous operation too, therefore when needing to lengthen the reversing roller 11, can pull the reversing roller 11 to the both sides, in order to adapt to the width of different rooms; the second plug connector 112 is connected with the supporting seat 14 through a bearing; the first plug connector 111 is provided with a heat shrinkage tube 16, the polishing piece 12 and the heat shrinkage tube 16 are in contact with each other, and the heat shrinkage tube 16 is mainly used for increasing friction force between the reversing roller 11 and the polishing piece 12 so as to reduce slipping of the polishing piece 12.

As shown in fig. 4, as a second structure for installing the reversing roller 11, the reversing roller 11 includes a third plug-in connector 113 and a fourth plug-in connector 114 which are movably inserted into each other, the third plug-in connector 113 and the fourth plug-in connector 114 are hollow bars, the plug-in ends of the third plug-in connector 113 and the fourth plug-in connector 114 are also provided with mutually-engageable slots, the non-plug-in ends of the third plug-in connector 113 and the fourth plug-in connector 114 are respectively connected with the supporting seat 14 by adopting bearings, and knurling 17 is arranged on the surfaces of the third plug-in connector 113 and the fourth plug-in connector 114, and the knurling 17 is also used for increasing friction force between the reversing roller 11 and the polishing piece 12.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Specific examples are used herein to illustrate the principles and embodiments of the present patent technical solution, and the above examples are only used to help understand the method of the present patent and its core ideas. The foregoing is merely a preferred embodiment of the present patent, and it should be noted that, due to the limited text expression, there is objectively an infinite number of specific structures, and it will be apparent to those skilled in the art that several modifications, adaptations or variations can be made and the above technical features can be combined in a suitable manner without departing from the principles of the present patent; such modifications, variations, or combinations, or the direct application of the concepts and aspects of the disclosed patent to other applications without modification, are intended to be within the scope of the present disclosure.

Claims

1. The polishing device is characterized by comprising a motor slip ring (10) and a reversing roller (11) which is arranged in a rotating way, wherein a polishing piece (12) is wound between the motor slip ring (10) and the reversing roller (11); the carbon brushes (13) are arranged on two sides of the motor slip ring (10), and the surface to be polished of the carbon brushes (13) is contacted with the polishing piece (12) wound on the motor slip ring (10).

2. A grinding device according to claim 1, characterized in that the two ends of the reversing roller (11) are rotatably provided with supporting seats (14), and a side of the supporting seat (14) is fixedly provided with a powerful magnet (15) for adsorption fixation.

3. A grinding device according to claim 2, characterized in that the reversing roller (11) comprises a first plug-in element (111) and a second plug-in element (112), the second plug-in element (112) being movably plugged at both ends of the first plug-in element (111);

the second plug connector (112) is connected with the supporting seat (14) through a bearing.

4. A polishing device according to claim 3, wherein the first connector (111) is provided with a heat shrink tube (16), and the polishing member (12) and the heat shrink tube (16) are in contact with each other.

5. A grinding device according to claim 2, characterized in that the reversing roller (11) comprises a third plug-in part (113) and a fourth plug-in part (114) which are movably plugged into each other, and that knurling (17) is provided on the surfaces of the third plug-in part (113) and the fourth plug-in part (114).