CN215418905U

CN215418905U - High-stability motor commutator

Info

Publication number: CN215418905U
Application number: CN202122118576.6U
Authority: CN
Inventors: 苏联风; 苏海轮; 管祖飞
Original assignee: Jiangsu Hualei Machinery Co ltd
Current assignee: Jiangsu Hualei Machinery Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-04
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses a high-stability motor commutator in the technical field of commutators, which comprises a framework, a metal sheet and contact sheets, wherein the metal sheet is arranged on the surface of the framework in a circular array, the contact sheets are arranged at the bottom ends of the metal sheet, the metal sheet and the contact sheets are of an integrated structure, the surface of the framework is connected with the back of the metal sheet through a limiting mechanism, and a fixing mechanism is arranged at the top of the surface of the framework.

Description

High-stability motor commutator

Technical Field

The utility model relates to the technical field of commutators, in particular to a high-stability motor commutator.

Background

A commutator is an important component of dc motor and ac commutator motor armatures. The motor plays a role in reversing when rotating and is commonly called as a commutator. When the coil passes through the current, it will rotate under the action of the permanent magnet through the attraction and repulsion forces, when it rotates to balance with the magnet, the original energized line is separated from the brush than the contact sheet on the corresponding commutator, and the brush is connected to the contact sheet corresponding to the group of coils generating the pushing force, so that the DC motor rotates continuously and repeatedly, if there is no commutator, the motor can only be dead as an electric brake if it can not rotate more than half a turn. In a dc motor, ac power in an armature winding is converted into dc power between brushes by the brushes and a commutator. In an AC commutator motor, the frequency of the AC current between brushes is made to meet operating requirements. The motor is used as an indispensable important basic device in industry, traffic, national defense and daily life, and the downstream industries of the motor comprise almost all national economy basic industries. The commutator is one of the core devices of the motor, and is accompanied with the increasing development of the motor industry.

The existing commutator generally comprises a framework, a metal sheet, an insulator and a contact piece, wherein the metal sheet is only clamped and fixed on the surface of the framework, and although the fixing effect can be achieved, the structure is too simple, when the commutator rotates along with a rotating shaft for a long time, the loosening condition is easy to occur, the fixing effect is not good, and therefore, the development of a high-stability motor commutator is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-stability motor commutator, which can effectively prevent a metal sheet from being thrown off by centrifugal force when the metal sheet is connected with a framework through the matching use of an arranged limiting mechanism, and can ensure that an installation plate arranged on the metal sheet is fixed inside an installation groove arranged on the framework through the matching use of an arranged fixing mechanism, thereby achieving the effect of fixing the metal sheet on the surface of the framework, and the screwing direction of an annular cover body in the fixing mechanism and the screwing direction of a positioning bolt are even and the same as the rotating direction of the motor, so that the annular cover body and the positioning bolt are only tighter and tighter even if a rotating shaft of the motor rotates for a long time, namely the fixing effect is better and better, so as to solve the problem that the prior metal sheet proposed in the background technology is only clamped and fixed on the surface of the framework, although the fixing effect can be achieved, but the structure is too simple, and after the commutator rotated along with the pivot for a long time, its fixed effect was not good problem.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high stability's motor commutator, includes skeleton, sheetmetal and contact piece, and the skeleton surface is circular array and is equipped with the sheetmetal, and the sheetmetal bottom is equipped with the contact piece, sheetmetal and contact piece formula structure as an organic whole, the skeleton surface is connected by stop gear with the sheetmetal back, skeleton surface top is equipped with fixed establishment.

Preferably, stop gear includes mounting groove, spacing hole, connecting plate and mounting panel, the skeleton top is circular array and is equipped with the mounting groove, the mounting groove outer wall is equipped with spacing hole, spacing hole is linked together with the skeleton surface.

Preferably, the welding of sheetmetal back has the connecting plate, and the connecting plate is inner to run through spacing hole and extend to the mounting groove inside, the welding of the connecting plate is inner has the mounting panel, the mounting panel is located inside the mounting groove.

Preferably, fixing mechanism includes annular breach, annular lid and positioning bolt, the skeleton top still is equipped with annular breach, and the mounting groove top is linked together with annular breach, annular breach inner wall threaded connection has annular lid, annular lid direction of screwing is the same with the motor rotation direction, annular lid body is circular array threaded connection has positioning bolt, positioning bolt 5 direction of screwing is the same with the motor rotation direction.

Preferably, the bottom end of the positioning bolt vertically penetrates through the bottom of the annular cover body, the positioning bolt is aligned with the mounting groove vertically, and the bottom end of the positioning bolt vertically extends into the mounting groove and is attached to the top of the mounting plate.

Preferably, the center of the framework is vertically provided with a through hole, and the surface of the framework is fixedly connected with an insulator in a circular array.

Preferably, the insulator is a mica sheet, and the insulator is located between two adjacent metal sheets.

Compared with the prior art, the utility model has the beneficial effects that: the metal sheet is connected with the framework and can be effectively prevented from being thrown off by centrifugal force when the metal sheet rotates along with the framework through the matching of the limiting mechanisms, the mounting plate arranged on the metal sheet is fixed inside the mounting groove arranged on the framework through the matching of the fixing mechanism, so that the effect of fixing the metal sheet on the surface of the framework is achieved, the screwing direction of the annular cover body in the fixing mechanism and the screwing direction of the positioning bolt are uniform, and the rotating direction of the motor is the same, so that even if the rotating shaft of the motor rotates for a long time, the annular cover body and the positioning bolt are only tightened, namely the fixing effect is better and better.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a top view of a portion of the structure of the present invention;

FIG. 4 is a structural cross-sectional view of the present invention;

fig. 5 is a partial structural sectional view of the present invention.

In the figure: 1. a framework; 1-1, mounting grooves; 1-1-1, a limiting hole; 1-2, annular gap; 1-3, through holes; 2. a metal sheet; 2-1, connecting plates; 2-1-1, mounting a plate; 3. a contact piece; 4. an annular cover body; 5. positioning the bolt; 6. an insulator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides the following technical scheme: referring to fig. 1-5, a high-stability motor commutator comprises a framework 1, a metal sheet 2 and a contact piece 3, wherein the metal sheet 2 is arranged on the surface of the framework 1 in a circular array, the contact piece 3 is arranged at the bottom end of the metal sheet 2, the metal sheet 2 and the contact piece 3 are of an integrated structure, the surface of the framework 1 is connected with the back surface of the metal sheet 2 through a limiting mechanism, and the top of the surface of the framework 1 is provided with a fixing mechanism;

further, the limiting mechanism comprises a mounting groove 1-1, a limiting hole 1-1-1, a connecting plate 2-1 and a mounting plate 2-1-1, the top of the framework 1 is provided with the mounting groove 1-1 in a circular array, the outer wall of the mounting groove 1-1 is provided with the limiting hole 1-1-1, the limiting hole 1-1-1 is communicated with the surface of the framework 1, the back of the metal sheet 2 is welded with the connecting plate 2-1, the inner end of the connecting plate 2-1 penetrates through the limiting hole 1-1-1 and extends into the mounting groove 1-1, the inner end of the connecting plate 2-1 is welded with the mounting plate 2-1-1, and the mounting plate 2-1-1 is positioned in the mounting groove 1-1, so that a worker can realize the purpose of connecting the metal sheet 2 to the surface of the framework 1 by inserting the mounting plate 2-1-1 into the mounting groove 1-1, under the limiting action of the limiting holes 1-1-1, even if the metal sheet 2 and the framework 1 rotate along with the rotating shaft of the motor, the metal sheet 2 cannot be thrown off by centrifugal force;

further, the fixing mechanism comprises an annular gap 1-2, an annular cover body 4 and a positioning bolt 5, the top of the framework 1 is also provided with the annular gap 1-2, the top end of the mounting groove 1-1 is communicated with the annular gap 1-2, the inner wall of the annular gap 1-2 is in threaded connection with the annular cover body 4, the screwing direction of the annular cover body 4 is the same as the rotating direction of the motor, the positioning bolt 5 is in threaded connection with the annular cover body 4 in a circular array manner, the screwing direction of the positioning bolt 5 is the same as the rotating direction of the motor, the bottom end of the positioning bolt 5 vertically penetrates through the bottom of the annular cover body 4, the positioning bolt 5 is in up-down alignment with the mounting groove 1-1, the bottom end of the positioning bolt 5 vertically extends into the mounting groove 1-1 and is attached to the top of the mounting plate 2-1-1, so when a worker connects the metal sheet 2 to the surface of the framework 1, the annular cover body 4 can be screwed on the top of the framework 1 and the positioning bolt 5 can be rotated, so that the bottom end of the positioning bolt 5 is moved downwards to the top of the mounting plate 2-1-1, the mounting plate 2-1-1 is fixed in the mounting groove 1-1, the effect of fixedly connecting the metal sheet 2 to the surface of the framework 1 is achieved, and the screwing direction of the annular cover body 4 and the screwing direction of the positioning bolt 5 are uniform and the rotating direction of the motor is the same, so that even if the rotating shaft of the motor rotates for a long time, the annular cover body 4 and the positioning bolt 5 are only tighter and tighter, namely, the fixing effect is better and better, compared with the prior art, the utility model has the advantages of novel structure, reasonable design and better fixing effect, and is suitable for popularization and use;

further, the center of the framework 1 is vertically provided with a through hole 1-3, and in the prior art, a rotating shaft of the motor can penetrate through the through hole 1-3, so that the framework 1 rotates along with the rotating shaft of the motor, the surface of the framework 1 is fixedly connected with an insulator 6 in a circular array, the insulator 6 is a mica sheet, the insulator 6 is positioned between two adjacent metal sheets 2, the mica sheet is composed of polysilicate muscovite, quartz, garnet, rutile and the like, has insulating and low-loss thermal resistance functions, is also a good black body, and is widely applied to electrical products as insulating materials.

The working principle is as follows: the worker can insert the mounting plate 2-1-1 into the mounting groove 1-1 to connect the metal sheet 2 to the surface of the framework 1, and under the limiting action of the limiting hole 1-1-1, even if the metal sheet 2 and the framework 1 rotate along with the rotating shaft of the motor, the metal sheet 2 cannot be thrown off by centrifugal force, when the worker connects the metal sheet 2 to the surface of the framework 1, the worker can also screw the annular cover body 4 to the top of the framework 1 and rotate the positioning bolt 5, so that the bottom end of the positioning bolt 5 moves downwards to the top of the mounting plate 2-1-1, the mounting plate 2-1-1 is fixed in the mounting groove 1-1, the effect of fixedly connecting the metal sheet 2 to the surface of the framework 1 is achieved, and the screwing direction of the annular cover body 4 and the rotating direction of the positioning bolt 5 are uniform, and the rotating direction of the motor is the same, therefore, even if the rotating shaft of the motor rotates for a long time, the annular cover body 4 and the positioning bolt 5 are tightened more and more, namely the fixing effect is better and better.

While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a motor commutator of high stability, includes skeleton (1), sheetmetal (2) and contact piece (3), and skeleton (1) surface is circular array and is equipped with sheetmetal (2), and sheetmetal (2) bottom is equipped with contact piece (3), sheetmetal (2) and contact piece (3) formula structure as an organic whole, its characterized in that: the surface of the framework (1) is connected with the back of the metal sheet (2) through a limiting mechanism, and the top of the surface of the framework (1) is provided with a fixing mechanism.

2. A high stability motor commutator as set forth in claim 1, wherein: the limiting mechanism comprises a mounting groove (1-1), limiting holes (1-1-1), a connecting plate (2-1) and a mounting plate (2-1-1), the top of the framework (1) is provided with the mounting groove (1-1) in a circular array, the outer wall of the mounting groove (1-1) is provided with the limiting holes (1-1-1), and the limiting holes (1-1-1) are communicated with the surface of the framework (1).

3. A high stability motor commutator as set forth in claim 2, wherein: the back of the metal sheet (2) is welded with a connecting plate (2-1), the inner end of the connecting plate (2-1) penetrates through a limiting hole (1-1-1) and extends into the mounting groove (1-1), the inner end of the connecting plate (2-1) is welded with a mounting plate (2-1-1), and the mounting plate (2-1-1) is located inside the mounting groove (1-1).

4. A high stability motor commutator as set forth in claim 1, wherein: the fixing mechanism comprises an annular notch (1-2), an annular cover body (4) and a positioning bolt (5), the annular notch (1-2) is further arranged at the top of the framework (1), the top end of the mounting groove (1-1) is communicated with the annular notch (1-2), the inner wall of the annular notch (1-2) is in threaded connection with the annular cover body (4), the screwing direction of the annular cover body (4) is the same as the rotating direction of the motor, the annular cover body (4) is in threaded connection with the positioning bolt (5) in a circular array, and the screwing direction of the positioning bolt (5) is the same as the rotating direction of the motor.

5. A high stability motor commutator according to claim 4, wherein: the bottom end of the positioning bolt (5) vertically penetrates through the bottom of the annular cover body (4), the positioning bolt (5) is aligned with the mounting groove (1-1) from top to bottom, and the bottom end of the positioning bolt (5) vertically extends into the mounting groove (1-1) and is attached to the top of the mounting plate (2-1-1).

6. A high stability motor commutator as set forth in claim 1, wherein: the novel insulation board is characterized in that a through hole (1-3) is vertically formed in the center of the framework (1), and the surface of the framework (1) is also fixedly connected with an insulator (6) in a circular array mode.

7. A high stability motor commutator according to claim 6, wherein: the insulator (6) is a mica sheet, and the insulator (6) is positioned between two adjacent metal sheets (2).