CN219419791U

CN219419791U - Fastening type commutator with reinforcing bushing

Info

Publication number: CN219419791U
Application number: CN202320801781.9U
Authority: CN
Inventors: 吴一铭; 吴永勇; 林晓光
Original assignee: Zhejiang Yiming Locomotive Parts Co ltd
Current assignee: Zhejiang Yiming Locomotive Parts Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-07-25
Anticipated expiration: 2033-04-12

Abstract

The utility model discloses a fastening type commutator with a reinforcing bushing in the field of commutators, which comprises a device body, wherein the device body comprises a bakelite powder device and an annular groove, the bakelite powder device is concentrically fixed on one side of the annular groove, the bakelite powder device comprises a bakelite powder main body and a bakelite powder device, the bakelite powder device is fixed on the inner side surface of the bakelite powder main body, a through hole is formed in the outer side surface of the bakelite powder main body in a penetrating way, a trapezoid groove is formed in the side edge of the bakelite powder main body, the bakelite powder device comprises a bakelite powder main body, a fixing piece and a bushing, the fixing piece is fixed on the outer side surface of the bakelite powder main body, the bushing is arranged on the inner side surface of the bakelite powder main body, a mounting frame, a spring and a convex block are arranged in the fixing piece, two ends of the spring are respectively welded and fixed on the right side surface of the mounting frame and the left side surface of the convex block, so that a user can avoid contact between the commutator main body and a shaft during use, wear is avoided, and the service time is prolonged, and the anti-skid groove arranged can strengthen the fixing effect.

Description

Fastening type commutator with reinforcing bushing

Technical Field

The utility model relates to the field of commutators, in particular to a fastening type commutator with a reinforcing bushing.

Background

The commutator (English: communicator) is a component used as current commutation on DC motor and AC series excited motor, in order to make the motor continuously rotate, commonly called commutator, structurally, the commutator is formed by enclosing several contact pieces into a circle, and is respectively connected with every contact on the rotor, and two electrodes connected with external side are called brushes to make contact with them, at the same time only make contact with two of them.

During the commutator manufacturing process, need assemble bakelite powder, commutator segment, mica sheet and bush to be bakelite powder main part with bakelite powder suppression through the press, need process bakelite powder main part after the compression molding, ordinary bush can't increase the income axial force performance of commutator, makes the commutator unable pass limit test, leads to the product to not reach the level of highest end.

Disclosure of Invention

The utility model aims to provide a fastening type commutator with a reinforcing bushing, so as to solve the problem that the axial force performance of the commutator cannot be increased in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a fastening type commutator with strengthen bush, includes the device body, the device body includes bakelite powder device and ring channel, bakelite powder device is concentric to be fixed in one side of ring channel, including bakelite powder main part and commutator device in the bakelite powder device, the inside surface at bakelite powder main part is fixed to the commutator device, the outside surface of bakelite powder main part runs through and is provided with the through-hole, trapezoidal slot has been seted up to the side of bakelite powder main part, including commutator body, mounting and bush in the commutator device, the mounting is fixed at the outside surface of commutator body, the bush sets up at the inside surface of commutator body, including mounting bracket, spring and protruding type piece in the mounting bracket, the both ends of spring respectively with the right side surface of mounting bracket and protruding type piece left side surface welded fastening, including spacing, buffer and logical groove in the bush, spacing portion sets up in the upper and lower both ends of bush, be the buffer between the inside surface of spacing and bush, both sides the buffer middle part is provided with logical groove.

As a further scheme of the utility model: the utility model discloses a commutator body, including the face of bakelite powder main part, the face of bakelite powder main part has seted up multiunit dovetail groove, the diameter of through-hole and the diameter looks adaptation of protruding type piece, and the user passes through the cooperation of through-hole and protruding type piece is strengthening the fixed effect of commutator body and bakelite powder main part, secondly, the user can inwards press protruding type piece drives the spring compresses inwards to very convenient taking off the commutator body.

As still further aspects of the utility model: four groups of anti-skid grooves are formed in the inner side surface of the bushing, two groups of fixing pieces are formed in the surface of the commutator body, the anti-skid grooves and the fixing pieces are uniformly distributed in an array mode, the anti-skid grooves are arranged in multiple groups, the fixing effect can be enhanced, and the fixing pieces can be enhanced in multiple groups.

As still further aspects of the utility model: the width of protruding type piece is greater than the thickness of bush, and the convenience of customers presses down protruding type piece, cancel protruding type piece and through-hole's fixed, convenient dismantlement.

As still further aspects of the utility model: the buffer area is filled with soft rubber materials, so that the buffer effect is enhanced.

As still further aspects of the utility model: the hole structure has been seted up to one side of the mounting bracket that is close to protruding type piece, just the width of spring is greater than the width of hole structure, the spring is when outwards extending, the mounting bracket can be used for spacing, avoids the spring stretches out overlength.

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

1. according to the utility model, through the bushing structure, a user can avoid contact between the commutator body and the shaft during use, abrasion is avoided, the service time is prolonged, and the anti-skid groove can strengthen the fixing effect.

2. According to the utility model, through the fixing piece structure, a user can cancel the connection between the commutator and the bakelite powder main body by downwards pressing the convex block, so that the commutator main body is convenient to fix and detach, and the buffer area and the limiting part can slow down the pressure of the structure to the bakelite powder device.

Drawings

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

FIG. 2 is a schematic structural view of a bakelite powder device according to the present utility model;

FIG. 3 is a schematic cross-sectional view of the commutator body according to the present utility model;

fig. 4 is a schematic cross-sectional view of a fixing member according to the present utility model.

In the figure: 1. a device body; 2. an bakelite powder device; 21. a bakelite powder body; 211. a through hole; 212. a trapezoid groove; 22. a commutator device; 221. a commutator body; 222. a fixing member; 2221. a mounting frame; 2222. a spring; 2223. a convex block; 223. a bushing; 2231. a limit part; 2232. a buffer area; 2233. a through groove; 224. an anti-skid groove; 3. an annular groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, in an embodiment of the present utility model, a fastening type commutator with a reinforcing bushing includes a device body 1, the device body 1 includes a bakelite powder device 2 and an annular groove 3, the bakelite powder device 2 is concentrically fixed at one side of the annular groove 3, the bakelite powder device 2 includes a bakelite powder main body 21 and a commutator device 22, the commutator device 22 is fixed at an inner side surface of the bakelite powder main body 21, a through hole 211 is provided on an outer side surface of the bakelite powder main body 21 in a penetrating manner, a trapezoid slot 212 is provided at a side edge of the bakelite powder main body 21, the commutator device 22 includes a commutator main body 221, a fixing piece 222 and a bushing 223, the fixing piece 222 is fixed at an outer side surface of the commutator main body 221, the bushing 223 is provided at an inner side surface of the commutator main body 221, the fixing piece 222 includes a mounting bracket 2221, a spring 2222 and a convex block 2223, two ends of the spring 2222 are respectively welded with a right side surface of the mounting bracket 2221 and a left side surface of the convex block 2223, the bushing 223 includes a limit part 2231, a buffer 2232 and a through slot 2233, the limit part 1 is provided at upper and lower ends of the bushing 223, the buffer part 223 is provided between the two side surfaces of the buffer part 223 and the buffer part 223 2.

Wherein, the surface of the bakelite powder main body 21 is provided with a plurality of groups of trapezoid grooves 212, the diameter of the through hole 211 is matched with the diameter of the convex block 2223, a user can strengthen the fixing effect of the reverser main body 221 and the bakelite powder main body 21 through the matching of the through hole 211 and the convex block 2223, and secondly, the user can press the convex block 2223 inwards to drive the spring 2222 to compress inwards, thereby conveniently taking down the reverser main body 221; four groups of anti-skid grooves 224 are formed in the inner side surface of the bushing 223, two groups of fixing pieces 222 are formed in the surface of the commutator body 221, the plurality of groups of anti-skid grooves 224 and the fixing pieces 222 are uniformly distributed in an array, the fixing effect can be enhanced by arranging the plurality of groups of anti-skid grooves 224, and the fixing effect can be enhanced by the plurality of groups of fixing pieces 222; the width of the convex block 2223 is larger than the thickness of the bushing 223, so that a user can press the convex block 2223 downwards conveniently, the fixing of the convex block 2223 and the through hole 211 is canceled, and the disassembly is convenient; the buffer area 2232 is filled with soft rubber material, so that the buffer effect is enhanced; the hole structure has been seted up to the one side that is close to protruding type piece 2223 of mounting bracket 2221, and the width of spring 2222 is greater than the width of hole structure, and spring 2222 when outwards extension, mounting bracket 2221 can be used for spacing, avoids spring 2222 to stretch out the overlength.

The working principle of the utility model is as follows: when the commutator is used, a user can press the convex block 2223 in the fixing piece 222 at the outer side of the commutator body 221 downwards firstly, the convex block 2223 compresses the spring 2222 inwards after receiving the pressure, the user can install the commutator body 221 at the position aligned with the through hole 211 at the moment, so that the commutator body 221 can be conveniently replaced and maintained by the user while the fixing effect is met, the buffer 2232 and the limiting part 2231 arranged in the commutator body 221 can buffer the pressure from inside to outside, the rotating effect of the device body 1 is avoided, the service time of the bakelite powder main body 21 is prolonged secondly, and the friction force can be increased by arranging a plurality of groups of through grooves 2233 and anti-skid grooves 224.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a fastening formula commutator with strengthen bush, includes device body (1), device body (1) include bakelite powder device (2) and ring channel (3), bakelite powder device (2) are concentric to be fixed in one side of ring channel (3), its characterized in that: include bakelite powder main part (21) and commutator device (22) in bakelite powder device (2), the inboard surface at bakelite powder main part (21) is fixed to commutator device (22), the outside surface of bakelite powder main part (21) runs through and is provided with through-hole (211), trapezoidal slot (212) have been seted up to the side of bakelite powder main part (21), including commutator body (221), mounting (222) and bush (223) in commutator device (22), the outside surface at commutator body (221) is fixed to mounting (222), bush (223) set up the inboard surface at commutator body (221), including mounting bracket (2221), spring (2222) and protruding piece (2223) in mounting bracket (2222) both ends respectively with the right side surface of mounting bracket (2221) and protruding piece (2223) left side surface welded fastening, including limit part (2231), buffer (2) and logical groove (223) in bush (223), buffer (223) both ends (223) set up in buffer (2231) both ends (2233) have buffer (223) between two limit part (223) and two side surface (2231).

2. A fastened commutator with reinforcing bushings as defined in claim 1, characterized in that: a plurality of groups of trapezoid grooves (212) are formed in the surface of the bakelite powder main body (21), and the diameter of the through hole (211) is matched with the diameter of the convex block (2223).

3. A fastened commutator with reinforcing bushings as defined in claim 1, characterized in that: four groups of anti-skid grooves (224) are formed in the inner side surface of the bushing (223), two groups of fixing pieces (222) are formed in the surface of the commutator body (221), and the anti-skid grooves (224) and the fixing pieces (222) are uniformly distributed in an array mode.

4. A fastened commutator with reinforcing bushings as defined in claim 1, characterized in that: the width of the convex block (2223) is larger than the thickness of the bushing (223).

5. A fastened commutator with reinforcing bushings as defined in claim 1, characterized in that: the buffer area (2232) is filled with a soft rubber material.

6. A fastened commutator with reinforcing bushings as defined in claim 1, characterized in that: a hole structure is formed in one side, close to the convex block (2223), of the mounting frame (2221), and the width of the spring (2222) is larger than that of the hole structure.