CN217036269U

CN217036269U - Commutator with positioning function

Info

Publication number: CN217036269U
Application number: CN202220978058.3U
Authority: CN
Inventors: 林丽新
Original assignee: Chongqing Bohe Electric Co ltd
Current assignee: Chongqing Bohe Electric Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-07-22
Anticipated expiration: 2032-04-24

Abstract

The utility model belongs to the technical field of commutators, and discloses a commutator with a positioning function, which comprises a commutator body, commutator segments are equidistantly arranged on the periphery of the commutator body, a mounting ring is arranged at the upper end of the outer part of the commutator body, an insert block is fixed on the inner wall of the mounting ring, an insert slot matched with the insert block is arranged on the outer wall of the commutator body, and a fastening screw is screwed and connected on the outer wall of the mounting ring. The stability of commutator segment installation can be effectively improved.

Description

Commutator with positioning function

Technical Field

The utility model belongs to the technical field of commutators, and particularly relates to a commutator with a positioning function.

Background

A commutator, also called as 'commutator', is an important part of the armature of DC and AC commutator motors, and is a cylindrical or disk-shaped part composed of many copper sheets separated by mica sheets, each copper sheet is connected with some armature winding elements, and when the armature rotates, the copper sheets are contacted with fixed brushes successively.

But present current commutator has certain defect, and traditional commutator does not set up effectual limit structure, and the stability of commutator segment installation is relatively poor, and in addition, traditional commutator does not set up effectual location structure, takes place crooked when commutator installs to the motor in easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a commutator with a positioning function, which solves the problems that an effective limiting structure is not arranged and the mounting stability of a commutator segment is poor in the background technology, and in addition, an effective positioning structure is not arranged and the commutator is easy to skew when being mounted in a motor.

In order to achieve the purpose, the utility model provides the following technical scheme: a commutator having a positioning function, comprising:

the commutator comprises a commutator body, commutator segments are arranged on the periphery of the commutator body at equal intervals, and a mounting ring is arranged at the upper end of the exterior of the commutator body;

the inner wall of the mounting ring is fixed with an insert block, the outer wall of the commutator body is provided with a slot matched with the insert block, the outer wall of the mounting ring is screwed and connected with a fastening screw, and the fastening screw is screwed and connected to the inside of the commutator body;

and the positioning assembly is arranged on the mounting ring and is used for positioning before the commutator body is mounted.

Preferably, the positioning assembly comprises a positioning column, a groove and a spring, the groove is formed in the outer wall of the mounting ring, the spring is fixed inside the groove, and the positioning column is connected with the free end of the spring.

Preferably, the lower surface wall of the mounting ring is provided with an embedded groove, and the inside of the embedded groove is fixed with the parting beads in an annular array.

Preferably, the caulking groove is divided into a plurality of cavities by the parting strips, and the number of the cavities is consistent with that of the commutator bars.

Preferably, the center of the commutator body is provided with a shaft hole along the axial direction.

Preferably, the outer wall of the mounting ring is further fixed with a mounting block, and the mounting block is provided with a mounting hole.

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

(1) according to the utility model, by additionally arranging the inserting block and the inserting groove, when the mounting ring is mounted, the inserting block can be embedded into the inserting groove, the inserting groove can be pre-limited, the mounting ring is prevented from rotating, the screw hole is convenient to align, the subsequent fastening screw can be conveniently and quickly screwed, and the fastening screw can be prevented from being clamped in a staggered manner.

(2) According to the utility model, by arranging the positioning assembly, when the commutator is installed, the protruded positioning column can be embedded into a preset hole in the motor, so that pre-positioning can be effectively carried out, the installation accuracy of the commutator is ensured, and deflection is avoided.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the mounting ring of the present invention;

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

FIG. 4 is an enlarged view of portion A of FIG. 2;

FIG. 5 is an enlarged view of the portion B of FIG. 3;

in the figure: 1. a commutator body; 2. a commutator segment; 3. a mounting ring; 4. a positioning column; 5. a slot; 6. caulking grooves; 7. a parting strip; 8. inserting a block; 9. a groove; 10. a spring; 11. a shaft hole; 12. a fastening screw; 13. and (7) installing the block.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1, fig. 3 and fig. 5, the present invention provides the following technical solutions: a commutator having a positioning function, comprising:

the commutator comprises a commutator body 1, commutator segments 2 are arranged on the periphery of the commutator body 1 at equal intervals, a mounting ring 3 is arranged at the upper end of the outer part of the commutator body 1, and a shaft hole 11 is axially formed in the center of the commutator body 1;

an insert block 8 is fixed on the inner wall of the mounting ring 3, a slot 5 matched with the insert block 8 is formed in the outer wall of the commutator body 1, a fastening screw 12 is screwed and connected to the outer wall of the mounting ring 3, and the fastening screw 12 is screwed and connected to the inside of the commutator body 1;

through the technical scheme:

when the mounting ring 3 is installed, the insertion block 8 can be embedded into the slot 5 firstly, the slot 5 can be pre-limited, the mounting ring 3 is prevented from rotating, the alignment of screw holes is facilitated, the subsequent quick screwing of the fastening screw 12 is facilitated, and the fastening screw 12 is prevented from being misplaced and clamped.

Furthermore, the outer wall of the mounting ring 3 is also fixed with a mounting block 13, and the mounting block 13 is provided with a mounting hole;

specifically, the commutator can be installed in the motor by using the installation block 13 provided with the installation hole, and the commutator is stable and reliable.

Referring to fig. 1-2 and 4, the commutator further includes a positioning assembly, the positioning assembly is mounted on the mounting ring 3, and the positioning assembly is used for positioning before the commutator body 1 is mounted, the positioning assembly includes a positioning column 4, a groove 9 and a spring 10, the groove 9 is opened on the outer wall of the mounting ring 3, the spring 10 is fixed inside the groove 9, and the positioning column 4 is connected with the free end of the spring 10.

Through the technical scheme:

when this commutator of installation, can be with the reference column 4 embedding of evagination to the motor in predetermined downthehole, can effectively carry out prepositioning, guarantee the precision of this commutator installation, avoid taking place crooked, wherein, utilize the elastic action of recess 9 innerspring 10, can realize the change of reference column 4 evagination length, comparatively nimble.

In addition, as shown in fig. 2, the lower surface wall of the mounting ring 3 is provided with an embedded groove 6, partition bars 7 are fixed in the embedded groove 6 in an annular array, the embedded groove 6 is divided into a plurality of accommodating cavities by the partition bars 7, and the number of the accommodating cavities is consistent with that of the commutator segments 2.

Through the technical scheme:

when the commutator segment 2 is installed, the top end of the commutator segment 2 can be embedded into the cavity separated by the caulking groove 6 through the parting bead 7, and the installation stability of the commutator segment 2 can be effectively improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A commutator with positioning function is characterized by comprising:

the commutator comprises a commutator body (1), commutator segments (2) are arranged on the periphery of the commutator body (1) at equal intervals, and a mounting ring (3) is arranged at the upper end of the outside of the commutator body (1);

an insert block (8) is fixed on the inner wall of the mounting ring (3), a slot (5) matched with the insert block (8) is formed in the outer wall of the commutator body (1), a fastening screw (12) is connected to the outer wall of the mounting ring (3) in a screwing mode, and the fastening screw (12) is connected to the inside of the commutator body (1) in a screwing mode;

and the positioning assembly is arranged on the mounting ring (3) and is used for positioning before the commutator body (1) is mounted.

2. A commutator having a positioning function as defined in claim 1, wherein: the positioning assembly comprises a positioning column (4), a groove (9) and a spring (10), the groove (9) is formed in the outer wall of the mounting ring (3), the spring (10) is fixed inside the groove (9), and the positioning column (4) is connected with the free end of the spring (10).

3. A commutator having a positioning function according to claim 2, wherein: the lower surface wall of the mounting ring (3) is provided with an embedded groove (6), and the inside of the embedded groove (6) is fixed with spacing bars (7) in an annular array manner.

4. A commutator having a positioning function as defined in claim 3, wherein: the caulking groove (6) is divided into a plurality of cavities by the partition bars (7), and the number of the cavities is consistent with that of the commutator segments (2).

5. The commutator of claim 4, wherein: the center of the commutator body (1) is provided with a shaft hole (11) along the axial direction.

6. A commutator having a positioning function as defined in claim 5, wherein: the outer wall of the mounting ring (3) is further fixed with a mounting block (13), and a mounting hole is formed in the mounting block (13).