CN212367002U

CN212367002U - Axial commutator structure

Info

Publication number: CN212367002U
Application number: CN202021278128.1U
Authority: CN
Inventors: 窦国平; 郭齐江
Original assignee: Nanjing Qingyan Transmission Equipment Research Institute Co ltd
Current assignee: Nanjing Qingyan Transmission Equipment Research Institute Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-01-15
Anticipated expiration: 2030-07-03

Abstract

The utility model relates to an axial commutator structure, which comprises a motor, the internally mounted of motor has rotor and stator, install the commutator in the pivot at rotor place, the motor has seted up the mounting hole on being close to one side shell of output shaft, the externally mounted of mounting hole has the dismantlement lid, the axial lead of mounting hole sets up with the axial lead level of rotor, the internally mounted of mounting hole has the carbon brush seat, the internally mounted of carbon brush seat has the carbon brush subassembly, the carbon brush subassembly sets up at the inside axial of motor, the carbon brush subassembly includes the carbon brush, the tip of carbon brush supports and leans on the surface of commutator. The utility model discloses an at axial installation carbon brush subassembly, the space of installation operation is big, is convenient for change the carbon brush of wearing and tearing through opening the dismantlement lid in the axial of motor, is applicable to the bigger big inertia motor of motor diameter.

Description

Axial commutator structure

Technical Field

The utility model relates to a motor commutator technical field especially relates to an axial commutator structure.

Background

At present, a commutator of a motor is arranged on a rotating shaft where a rotor is arranged, and carbon brush devices are arranged in the radial direction of the rotating shaft. However, for a motor with a short overall motor length, a large inertia, a small linear velocity and a large motor diameter, if the commutator is installed in the radial direction, the worn carbon brush is inconvenient to detach and replace in the later period due to the space limitation of the motor shell.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an axial commutator structure to solve the problem that meets among the above-mentioned background art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides an axial commutator structure, includes the motor, the internally mounted of motor has rotor and stator, install the commutator in the pivot at rotor place, the motor has seted up the mounting hole on being close to one side shell of output shaft, the externally mounted of mounting hole has the dismantlement lid, the axial lead of mounting hole sets up with the axial lead level of rotor, the internally mounted of mounting hole has the carbon brush seat, the internally mounted of carbon brush seat has the carbon brush subassembly, the carbon brush subassembly sets up at the inside axial of motor, the carbon brush subassembly includes carbon brush, spring and copper, carbon brush, spring and copper set gradually outwards from the inside of motor, the carbon brush passes through spring and copper electric connection, the tip of carbon brush supports and leans on the surface of commutator.

In the above scheme, the carbon brush holder comprises an inner sleeve and a top plate, a flange surface is arranged at one end of the inner sleeve and fixedly connected with the top plate, the carbon brush assembly is installed inside the inner sleeve, and the copper plate is abutted against the top plate.

In the above scheme, the carbon brush holder comprises an inner sleeve, a protective sleeve and a top plate, an inner groove is formed in one end of the protective sleeve, a flange surface is arranged at one end of the inner sleeve and is fixedly connected with the inner groove in a clamping mode, the carbon brush assembly is installed inside the inner sleeve, and the copper plate abuts against the top plate.

In the above scheme, the mounting holes are at least provided with two carbon brush holders and two carbon brush assemblies on the shell of the motor.

Compared with the prior art, the beneficial effects of the utility model are that: the mounting hole is formed in the shell on one side, close to the output shaft, of the motor, and the axis of the mounting hole and the axis of the rotor are horizontally arranged, so that the mounting hole is axially arranged relative to the rotor. The internally mounted of mounting hole has the carbon brush seat, and the internally mounted of carbon brush seat has the carbon brush subassembly, therefore the carbon brush subassembly also is the axial setting in the inside of motor. Through at the axial installation carbon brush subassembly, the space of installation operation is big, is convenient for change the carbon brush of wearing and tearing through opening the dismantlement lid from the axial of motor, and to the motor that the motor is whole shorter, inertia is big, the linear velocity is little, the motor diameter is bigger like this, makes things convenient for the later stage to dismantle the carbon brush of changing wearing and tearing.

Drawings

The disclosure of the present invention is explained with reference to the drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:

FIG. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic structural view of a carbon brush holder and a carbon brush assembly according to the present invention;

reference numbers in the figures: 1-a motor; 11-a rotor; 12-a stator; 13-mounting holes; 2-a carbon brush holder; 21-inner sleeve; 22-flange face; 23-a protective sheath; 24-an inner groove; 25-a top plate; 3-a carbon brush assembly; 31-a carbon brush; 32-a spring; 33-copper plate; 4-a commutator; 5-disassembling the cover.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the invention only in a schematic way, and therefore they show only the relevant components of the invention.

According to the technical scheme of the utility model, under the essential spirit of the utility model, general technical personnel in this field can propose the multiple structural style and the realization that can replace each other. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Embodiment 1, as shown in fig. 1 and 2, an axial commutator structure includes a motor 1, a rotor 11 and a stator 12 are installed inside the motor 1, a commutator 4 is installed on a rotating shaft where the rotor 11 is located, a mounting hole 13 is opened on a housing of the motor 1 near an output shaft, a dismounting cover 5 is installed outside the mounting hole 13, and the dismounting cover 5 is made of rubber in order to facilitate dismounting and insulation requirements. At least two mounting holes 13 are formed in the shell of the motor 1, and at least two groups of corresponding carbon brush holders 2 and corresponding carbon brush assemblies 3 are arranged, so that the carbon brushes 31 can be conveniently detached and replaced together.

The axis of the mounting hole 13 is arranged horizontally to the axis of the rotor 11, so that the mounting hole is arranged axially with respect to the rotor 11. The internally mounted of mounting hole 13 has carbon brush seat 2, and the internally mounted of carbon brush seat 2 has carbon brush subassembly 3, therefore carbon brush subassembly 3 also is the axial setting in the inside of motor 1, through at axial installation carbon brush subassembly 3, is convenient for change the carbon brush 31 of wearing and tearing through opening dismantlement lid 5 from the axial of motor 1.

The carbon brush assembly 3 includes a carbon brush 31, a spring 32, and a copper plate 33, the carbon brush 31, the spring 32, and the copper plate 33 are sequentially disposed from the inside of the motor 1 to the outside, the carbon brush 31 is electrically connected to the copper plate 33 through the spring 32, and an end of the carbon brush 31 abuts against an outer surface of the commutator 4. The carbon brushes 31 transmit the electric arc or electric spark generated in the mutual rotation process of the rotor 11 and the stator 12 to the copper plate 33 connected with an external protection circuit, so that the function of arc-free commutation of the motor 1 is realized.

The carbon brush holder 2 comprises an inner sleeve 21 and a top plate 25, a flange face 22 is arranged at one end of the inner sleeve 21, the flange face 22 and the top plate 25 can be fixedly connected through screws, the carbon brush assembly 3 is installed inside the inner sleeve 21, the copper plate 33 abuts against the top plate 25, the top plate 25 mainly has an abutting effect on the copper plate 33, and a circuit of a protection circuit externally connected with the copper plate 33 penetrates through the copper plate 33.

Example 2, this example is different from the assembly of the carbon brush holder 2 in example 1 only, and has an additional insulating protective sleeve 23. The method specifically comprises the following steps: the carbon brush holder 2 comprises an inner sleeve 21, a protective sleeve 23 and a top plate 25, wherein an inner groove 24 is formed in one end of the protective sleeve 23, a flange surface 22 is formed in one end of the inner sleeve 21, and the flange surface 22 is clamped and fixed with the inner groove 24. The carbon brush assembly 3 is installed inside the inner sleeve 21, and the copper plate 33 abuts against the top plate 25. Due to the existence of the top plate 25, even if only simple contact and no screw fixation are adopted when the flange surface 22 is clamped with the inner groove 24, the flange surface 22 of the inner sleeve 21 can be forced to be pressed on the inner groove 24 of the protective sleeve 23 because the copper plate 33 abuts against the top plate 25.

The utility model discloses a seted up mounting hole 13 on the shell of one side that motor 1 is close to the output shaft, the axial lead of mounting hole 13 sets up with rotor 11's axial lead level, and the mounting hole has just so set up for rotor 11 for the axial. The carbon brush holder 2 is mounted inside the mounting hole 13, and the carbon brush assembly 3 is mounted inside the carbon brush holder 2, so that the carbon brush assembly 3 is axially disposed inside the motor 1. Through at axial installation carbon brush subassembly 3, the space of installation operation is big, is convenient for change the carbon brush 31 of wearing and tearing through opening dismantlement lid 5 in the axial of motor 1, and to the motor that the motor is whole shorter, inertia is big, the linear velocity is little, the motor diameter is bigger, makes things convenient for the later stage to dismantle the carbon brush 31 of changing wearing and tearing.

The above-mentioned embodiments further explain in detail the objects, technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only the embodiments of the present invention, and are not intended to limit the scope of the present invention, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides an axial commutator structure, includes motor (1), the internally mounted of motor (1) has rotor (11) and stator (12), its characterized in that: a commutator (4) is arranged on a rotating shaft where the rotor (11) is arranged, a mounting hole (13) is arranged on a shell at one side of the motor (1) close to the output shaft, the outer part of the mounting hole (13) is provided with a dismounting cover (5), the axial lead of the mounting hole (13) and the axial lead of the rotor (11) are horizontally arranged, a carbon brush seat (2) is arranged in the mounting hole (13), a carbon brush component (3) is arranged in the carbon brush seat (2), the carbon brush component (3) is axially arranged in the motor (1), the carbon brush component (3) comprises a carbon brush (31), a spring (32) and a copper plate (33), the carbon brush (31), the spring (32) and the copper plate (33) are arranged in sequence from the inside to the outside of the motor (1), the carbon brush (31) is electrically connected with the copper plate (33) through a spring (32), the end part of the carbon brush (31) is abutted against the outer surface of the commutator (4).

2. An axial commutator structure as defined in claim 1, wherein: carbon brush seat (2) are including endotheca (21) and roof (25), the one end of endotheca (21) is equipped with flange face (22), flange face (22) and roof (25) fixed connection, carbon brush subassembly (3) are installed the inside of endotheca (21), copper (33) support and lean on roof (25).

3. An axial commutator structure as defined in claim 1, wherein: the carbon brush holder (2) comprises an inner sleeve (21), a protective sleeve (23) and a top plate (25), an inner groove (24) is formed in one end of the protective sleeve (23), a flange face (22) is arranged at one end of the inner sleeve (21), the flange face (22) is fixedly connected with the inner groove (24) in a clamping mode, the carbon brush assembly (3) is installed inside the inner sleeve (21), and the copper plate (33) abuts against the top plate (25).

4. An axial commutator structure as defined in claim 1, wherein: the mounting holes (13) are at least provided with two carbon brush seats (2) and two carbon brush assemblies (3) on the shell of the motor (1).