CN210640771U

CN210640771U - Brush box insertion type motor

Info

Publication number: CN210640771U
Application number: CN201922071947.2U
Authority: CN
Inventors: 熊凯平; 沈翌
Original assignee: Changzhou Huasheng Motor Co Ltd
Current assignee: Changzhou Huasheng Motor Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-05-29
Anticipated expiration: 2029-11-27

Abstract

The utility model relates to a brush box plug-in motor. The brush box plug-in type motor comprises a stator and an armature, wherein a shaft outlet end cover and a brush frame end cover are respectively arranged at two ends of the stator, a shaft outlet bearing is arranged at the position of the armature and the shaft outlet end cover, a brush end bearing is arranged at the position of the armature and the brush frame end cover, a carbon brush and a brush frame assembly for placing the carbon brush are arranged at the inner bottom of the brush frame end cover, the brush frame assembly comprises a brush frame bottom plate and a brush box assembly, and the brush box assembly comprises a brush box and a base plate; the base plate is provided with a riveting hole, the brush box is provided with a riveting pin, and the riveting pin of the brush box is firmly riveted after being inserted into the riveting hole of the base plate; the brush holder end cover is also provided with a protective cover. When the brush box insertion type motor is used, the brush box is connected and fastened with the base plate, the structure is firm when the motor is used, the carbon brush is stably used in the brush box with the structure, and the motor can stably conduct current; the brush box assembly effectively avoids deformation of the brush box through a mode of inserting and riveting firmly, the service life of the carbon brush is prolonged, and the maintenance cost is reduced.

Description

Brush box insertion type motor

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to brush box plug-in motor.

Background

A carbon brush is a sliding contact widely used in electrical equipment, and is a device for transmitting energy or signals between a fixed part and a rotating part of a motor or a generator or other rotating machinery; the carbon brush holder is used for applying pressure to the carbon brush which is in sliding contact with the surface of the commutator or the collecting ring through the spring so as to enable the carbon brush holder to stably conduct current between the fixed body and the rotating body. Both the carbon brush holder and the carbon brushes are very important components for an electrical machine. No matter how good the characteristics of the carbon brush are, the carbon brush holder is inappropriate, the carbon brush not only cannot fully exert its excellent characteristics, but also can bring great influence to the performance and the service life of the motor itself.

In the existing motor, the brush box is usually attached and riveted on the support, and the brush box is easy to deform in the using process, so that the carbon brush is seriously abraded, the brush frame is partially scrapped, and the maintenance and use cost is increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: according to the above defect, the utility model provides a brush box bayonet motor adopts grafting riveting connection to replace current flat riveting connection, prevents that the brush box from warping, improves the life of carbon brush and brush yoke, reduces cost of maintenance.

The utility model provides a technical scheme that its technical problem adopted as follows: a brush box plug-in motor comprises a stator consisting of a base, a main pole iron core and a main pole coil and an armature consisting of a rotating shaft, a laminated armature sheet group, an armature coil and a commutator, wherein a shaft outlet end cover and a brush holder end cover are respectively arranged at two ends of the stator; the brush box assembly comprises a brush box and a base plate, wherein the base plate is provided with a riveting hole, the brush box is provided with a brush box riveting foot, and the brush box riveting foot is inserted into the riveting hole of the base plate to be riveted firmly. When the brush box insertion type motor is used, the brush box is connected and fastened with the base plate, the structure is firm when the motor is used, the carbon brush is stably used in the brush box with the structure, and the motor can stably conduct current; the brush box assembly effectively avoids deformation of the brush box through a mode of inserting and riveting firmly, the service life of the carbon brush is prolonged, and the maintenance cost is reduced.

Furthermore, the rivet feet of the brush box are in interference fit with the rivet holes. The interference fit's connected mode can guarantee that brush box and carbon brush are connected the fastening, and in the use, the carbon brush is used stably, and sound construction, motor can conduction electric current steadily.

Furthermore, the brush yoke end cover is also provided with a protective cover, so that the part of the brush yoke assembly is prevented from falling ash through the protective cover to influence the performance of the motor.

Furthermore, an insulating gasket is arranged on the contact surface of the base of the stator and the main pole iron core, and electric field leakage and safety accidents caused by the working of the motor can be avoided by arranging the insulating gasket.

Furthermore, a wave pad is arranged at the position where the brush end bearing contacts the end cover of the brush holder; and a hole check ring is arranged at the contact part of the output shaft bearing and the output shaft end cover. Through setting up ripples pad and hole retaining ring, the safety of brush end bearing, play axle bearing of being convenient for, motor production efficiency is high.

The utility model has the advantages that: by adopting the scheme, the brush box is connected and fastened with the base plate in the using process of the brush box insertion type motor, the structure is firm in the using process, the carbon brush is stably used in the brush box with the structure, and the motor can stably conduct current; the brush box assembly effectively avoids the deformation of the brush box by means of inserting and riveting, the service life of the carbon brush is prolonged, and the maintenance cost is reduced; the interference fit connection mode can ensure that the brush box and the carbon brush are connected and fastened, and the carbon brush is stable in use and firm in structure in the use process, so that the motor can stably conduct current; the dust falling of the brush holder component part is avoided through the protective cover, so that the performance of the motor is prevented from being influenced; the electric field leakage of the motor during working can be avoided by arranging the insulating gasket, and safety accidents are caused.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

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

FIG. 2 is a schematic structural view of a brush holder assembly of the present invention;

FIG. 3 is an exploded view of the brush box assembly of the present invention;

wherein: 1 is the ripples pad, 2 is the stator, 3 is the armature, 4 is the play axle end cover, 5 is the brush yoke end cover, 6 is the brush yoke subassembly, 61 is the brush yoke bottom plate, 62 is the brush box subassembly, 621 is the brush box, 622 is the backing plate, 623 is the riveting hole, 624 is the brush box riveting foot, 63 is the carbon brush, 7 is the play axle bearing, 8 is the brush end bearing, 9 is the protection casing, 10 is the hole retainer ring, 11 is the insulating pad.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the brush box plug-in motor includes a stator 2 composed of a base, a main pole core and a main pole coil, and an armature 3 composed of a rotating shaft, a laminated armature sheet set, an armature coil and a commutator, wherein an insulating gasket 11 is arranged at the contact surface of the base of the stator 2 and the main pole core; an output shaft end cover 4 and a brush holder end cover 5 are respectively arranged at two ends of the stator 2, an output shaft bearing 7 is arranged at the positions of the armature 3 and the output shaft end cover 4, a brush end bearing 8 is arranged at the positions of the armature 3 and the brush holder end cover 5, and a wave pad 1 is arranged at the position of the brush end bearing 8 contacting with the brush holder end cover 5; a hole retainer ring 10 is arranged at the contact position of the output shaft bearing 7 and the output shaft end cover 4; a carbon brush 63 and a brush holder assembly 6 for fixing the carbon brush are arranged at the inner bottom of the brush holder end cover 5, and the brush holder assembly 6 comprises a brush holder bottom plate 61 and a brush box assembly 62; the brush box assembly 62 comprises a brush box 621 and a backing plate 622, the backing plate 622 is provided with a riveting hole 623, the brush box 621 is provided with a brush box riveting foot 624, the brush box riveting foot 624 is inserted into the riveting hole 623 of the backing plate and is firmly riveted, and the brush box riveting foot 624 is in interference fit with the riveting hole 623; and a protective cover 9 is also arranged at the end cover 5 of the brush holder.

When the brush box insertion type motor is used, the brush box is connected and fastened with the base plate, the structure is firm when the motor is used, the carbon brush is stably used in the brush box with the structure, and the motor can stably conduct current; the brush box assembly effectively avoids deformation of the brush box through a mode of inserting and riveting firmly, the service life of the carbon brush is prolonged, and the maintenance cost is reduced.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a brush box plug-in motor, includes stator (2) of constituteing by frame, main pole iron core, main pole coil, armature (3) of compriseing pivot, the armature piece group that stacks, armature coil, commutator, stator (2) both ends are provided with respectively play axle head cover (4) and brush yoke end cover (5), armature (3) and play axle head cover (4) department are equipped with axle bearing (7), armature (3) and brush yoke end cover (5) department are equipped with brush end bearing (8), its characterized in that: a carbon brush (63) and a brush holder assembly (6) for placing the carbon brush are arranged at the inner bottom of the brush holder end cover (5), and the brush holder assembly (6) comprises a brush holder bottom plate (61) and a brush box assembly (62); the brush box assembly (62) comprises a brush box (621) and a base plate (622), a riveting hole (623) is formed in the base plate (622), a brush box riveting foot (624) is arranged on the brush box (621), and the brush box riveting foot (624) is inserted into the riveting hole (623) of the base plate and is firmly riveted.

2. A brush cartridge insertion motor according to claim 1, wherein: the rivet feet (624) of the brush box are in interference fit with the rivet holes (623).

3. A brush cartridge insertion motor according to claim 1, wherein: and a protective cover (9) is also arranged at the end cover (5) of the brush holder.

4. A brush cartridge insertion motor according to claim 1, wherein: and an insulating gasket (11) is arranged at the contact surface of the base of the stator (2) and the main pole iron core.

5. A brush cartridge insertion motor according to claim 1, wherein: a wave pad (1) is arranged at the position where the brush end bearing (8) contacts the brush holder end cover (5); a hole retainer ring (10) is arranged at the contact position of the output shaft bearing (7) and the output shaft end cover (4).