Wear-resistant commutator

Abstract

The utility model provides a wear-resistant commutator, and belongs to the technical field of commutators. The wear-resistant commutator comprises a commutator base. A plurality of commutator copper sheets are detachably arranged on the outer side of the commutator base in an annular array mode, a red copper wear-resisting layer is arranged on the outer side of each commutator copper sheet, side edge wear-resisting plates are integrally formed on the two sides of each red copper wear-resisting layer, and the side edge wear-resisting plates are connected with the side edges of the commutator copper sheets in an attached mode; an elastic wear-resistant pad is pasted on one side, close to the commutator base, of each commutator copper sheet, and the elastic wear-resistant pads are attached to the commutator base. Through the arrangement of the red copper wear-resistant layer and the side wear-resistant plate, the commutator copper sheet can be protected, the side surface and the outer side of the commutator copper sheet are prevented from being worn by coil winding and a carbon brush when the commutator is used for a long time, and the service life of the commutator copper sheet is prolonged.

Description

Technical Field

[0001] This application relates to the field of commutators, and more particularly, to a wear-resistant commutator. Background Art

[0002] A commutator, also known as a "commutator", is an important component on the armature of a DC motor and an AC commutator motor. It is composed of many copper sheets separated by mica sheets to form a cylindrical or disc shape, and each copper sheet is connected to several armature winding elements. When the armature rotates, the copper sheets successively contact the fixed carbon brushes. In a DC motor, the alternating current in the armature winding is changed into direct current between the carbon brushes through the carbon brushes and the commutator. In an AC commutator motor, the frequency of the alternating current between the carbon brushes is made to meet the working requirements.

[0003] When in use, the commutator is connected to the carbon brush of the power supply through the copper sheets on its surface. For example, a commutator disclosed in Chinese Patent Publication No. CN220896023U has its commutator copper sheets worn on the surface due to a relatively high rotational speed during long-term use, resulting in damage to the commutator and further damage to the motor. Summary of the Utility Model

[0004] To make up for the above deficiencies, this application provides a wear-resistant commutator, aiming to improve the problem that the commutator copper sheets are worn on the surface due to a relatively high rotational speed during long-term use, resulting in damage to the commutator and further damage to the motor.

[0005] An embodiment of this application provides a wear-resistant commutator, including a commutator base.

[0006] A number of commutator copper sheets are detachably arranged in a circular array on the outer side of the commutator base. A purple copper wear-resistant layer is provided on the outer side of each commutator copper sheet. Side wear-resistant plates are integrally formed on both sides of the purple copper wear-resistant layer, and the side wear-resistant plates are adhesively connected to the sides of the commutator copper sheets. An elastic wear-resistant pad is adhered to the side of each commutator copper sheet close to the commutator base, and the elastic wear-resistant pad is in contact with the commutator base.

[0007] In a specific implementation, a number of heat dissipation holes are arranged in a rectangular array on each purple copper wear-resistant layer.

[0008] In a specific implementation, an elastic cavity is provided inside the elastic wear-resistant pad.

[0009] In a specific implementation, connecting springs are connected to the opposite inner walls of the elastic cavity.

[0010] In a specific embodiment, an arc-shaped insertion block is provided on the inner side of the elastic wear-resistant pad, and the arc-shaped insertion block is detachably inserted on the outer side of the commutator base.

[0011] In a specific embodiment, a slot matching with the arc-shaped insertion block is formed on the outer side of the commutator base.

[0012] In a specific embodiment, a winding groove is formed between adjacent commutator copper sheets.

[0013] In a specific embodiment, a cloud platform is arranged at the top end of the commutator base. A relief groove is formed at each winding groove on the outer side of the cloud platform, and each relief groove communicates with the corresponding winding groove.

[0014] Beneficial effects:

[0015] 1. Through the arrangement of the purple copper wear-resistant layer and the side wear-resistant plate, the commutator copper sheet can be protected, preventing the wear caused by coil winding and the carbon brush to the side and the outer side of the commutator copper sheet during the long-term use of the commutator, and improving the service life of the commutator copper sheet.

[0016] 2. Through the arrangement of the elastic wear-resistant pad, on the one hand, the wear between the commutator copper sheet and the commutator base can be reduced, and on the other hand, the connection between the commutator copper sheet and the commutator base can be made more stable. Brief description of the drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a wear-resistant commutator provided by an embodiment of the present application;

[0019] Figure 2 It is a schematic structural diagram of a commutator base provided by an embodiment of the present application;

[0020] Figure 3 It is a schematic structural diagram of a commutator copper sheet provided by an embodiment of the present application;

[0021] Figure 4 It is a schematic structural diagram of the connection relationship between the purple copper wear-resistant layer and the side wear-resistant plate provided by an embodiment of the present application;

[0022] Figure 5Schematic diagram of the connection structure between the elastic wear-resistant pad and the arc-shaped insert block provided by the embodiment of the present application.

[0023] In the figure: 1 - commutator base; 11 - slot; 2 - commutator copper sheet; 3 - purple copper wear-resistant layer; 31 - heat dissipation hole; 4 - side wear-resistant plate; 5 - elastic wear-resistant pad; 51 - elastic cavity; 6 - arc-shaped insert block; 7 - connecting spring; 8 - cloud platform. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0025] Please refer to Figures 1 - 5 , the present application provides a wear-resistant commutator, including a commutator base 1.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a plurality of commutator copper sheets 2 are detachably arranged in an annular array on the outer side of the commutator base 1, and a purple copper wear-resistant layer 3 is arranged on the outer side of each commutator copper sheet 2. Specifically, the purple copper wear-resistant layer 3 has good electrical conductivity and thermal conductivity, excellent plasticity, and is easy to hot press and cold pressure process. Side wear-resistant plates 4 are integrally formed on both sides of the purple copper wear-resistant layer 3, and the side wear-resistant plates 4 are attached to the sides of the commutator copper sheets 2. An elastic wear-resistant pad 5 is pasted on one side of each commutator copper sheet 2 close to the commutator base 1, and the elastic wear-resistant pad 5 is attached to the commutator base 1. Among them, when the commutator operates, through the settings of the purple copper wear-resistant layer 3 and the side wear-resistant plates 4, the commutator copper sheets 2 can be protected to prevent the wear of the commutator copper sheets 2 caused by coil winding and carbon brushes on the sides and the outside during the long-term use of the commutator, and the service life of the commutator copper sheets 2 is improved. Through the setting of the elastic wear-resistant pad 5, on the one hand, the wear between the commutator copper sheet 2 and the commutator base 1 can be reduced, and on the other hand, the connection between the commutator copper sheet 2 and the commutator base 1 can be made more stable.

[0027] In this embodiment, a plurality of heat dissipation holes 31 are arranged in a rectangular array on each purple copper wear-resistant layer 3.

[0028] In this embodiment, an elastic cavity 51 is opened inside the elastic wear-resistant pad 5. Connecting springs 7 are connected to the opposite inner walls of the elastic cavity 51. Among them, through the setting of the connecting springs 7, the elasticity of the elastic wear-resistant pad 5 is increased.

[0029] In the specific configuration, an arc-shaped plug-in block 6 is provided on the inner side of the elastic wear-resistant pad 5, and the arc-shaped plug-in block 6 is detachably inserted on the outer side of the commutator base 1. A slot 11 is provided on the outer side of the commutator base 1 to match the arc-shaped plug-in block 6. The detachable connection between the commutator copper sheet 2 and the commutator base 1 is achieved through the cooperation between the arc-shaped plug-in block 6 and the slot 11.

[0030] In this embodiment, winding grooves are formed between adjacent commutator copper sheets 2. A pan 8 is provided at the top of the commutator base 1. A clearance groove is provided outside the pan 8 at each winding groove, and each clearance groove is connected to the corresponding winding groove. The clearance groove and the winding groove are raised to facilitate winding of the coil.

[0031] Working principle of this wear-resistant commutator:

[0032] When the commutator is running, the copper wear-resistant layer 3 and the side wear-resistant plate 4 are provided to protect the commutator copper sheet 2, and prevent the wear of the commutator copper sheet 2 side and outside due to coil winding and carbon brushes during long-term use, thereby improving the service life of the commutator copper sheet 2. The provision of the elastic wear-resistant pad 5 can reduce the wear between the commutator copper sheet 2 and the commutator base 1 on the one hand, and make the connection between the commutator copper sheet 2 and the commutator base 1 more stable on the other hand.

[0033] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A wear-resistant commutator, characterized in that, include A commutator base (1), wherein the outer side of the commutator base (1) is provided with a plurality of commutator copper sheets (2) in a removable manner in a circular array, the outer side of each commutator copper sheet (2) is provided with a red copper wear-resistant layer (3), both sides of the red copper wear-resistant layer (3) are integrally provided with side wear-resistant plates (4), and the side wear-resistant plates (4) are fitted and connected to the side of the commutator copper sheet (2), and an elastic wear-resistant pad (5) is adhered to the side of each commutator copper sheet (2) close to the commutator base (1), and the elastic wear-resistant pad (5) is fitted to the commutator base (1).

2. The wear-resistant commutator according to claim 1, characterized in that, Each of the red copper wear-resistant layers (3) is provided with a plurality of heat dissipation holes (31) in a rectangular array.

3. The wear-resistant commutator according to claim 1, wherein An elastic cavity (51) is provided inside the elastic wear-resistant pad (5).

4. The wear-resistant commutator according to claim 3, characterized in that, The opposite surface of the inner wall of the elastic cavity (51) is connected with a connecting spring (7).

5. A wear-resistant commutator according to claim 1, wherein, An arc-shaped insert block (6) is arranged on the inner side of the elastic wear-resistant pad (5), and the arc-shaped insert block (6) is detachably inserted on the outer side of the commutator base (1).

6. A wear-resistant commutator according to claim 5, characterized in that, A slot (11) matching with the arc-shaped insert block (6) is provided on the outer side of the commutator base (1).

7. A wear-resistant commutator according to claim 1, characterized in that, Winding grooves are formed between adjacent commutator copper sheets (2).

8. A wear-resistant commutator according to claim 1, characterized in that, A platform (8) is provided at the top end of the commutator base (1), and a clearance groove is provided on the outer side of the platform (8) at each winding groove, and each clearance groove is connected to the corresponding winding groove.

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