CN212627496U

CN212627496U - Device for preventing motor stator and rotor from sweeping boring

Info

Publication number: CN212627496U
Application number: CN202021962396.5U
Authority: CN
Inventors: 曾海金
Original assignee: Huizhou Zhongke Explosion Proof Motor Co ltd
Current assignee: Huizhou Zhongke Explosion Proof Motor Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-02-26
Anticipated expiration: 2030-09-10

Abstract

The utility model relates to an electrical equipment technical field especially relates to a prevent that motor stator and rotor from sweeping device of boring, including motor housing and output shaft, the output shaft rotates to be connected motor housing's one end, motor housing internal rotation is connected and is equipped with the axis of rotation, fixed connection is equipped with the rotor in the axis of rotation, the fixed a plurality of stators that are equipped with on motor housing's the shell inner wall, motor housing keeps away from the one end fixed connection of output shaft is equipped with a plurality of stoppers, motor housing is last to have seted up first direction spout and second direction spout, sliding connection is equipped with sliding sleeve on the circumference outer wall of stopper, and the device reasonable in design simple structure is effectual prevented to sweep the emergence of boring phenomenon, has greatly prolonged the life of motor, is fit for promoting.

Description

Device for preventing motor stator and rotor from sweeping boring

Technical Field

The utility model relates to an electrical equipment technical field especially relates to a prevent that motor stator and rotor from sweeping device of boring.

Background

As is known well, the stator of a starting motor is composed of a shell and magnetic poles fixed in the shell, and because the circle formed by the extension lines of the inner arcs of the magnetic poles is concentric with a rotor, the coil and the magnetic poles are generally assembled in the shell at first during processing, then the inner arc surfaces of the magnetic poles are positioned and bored by the excircle of the shell, and finally the inner arc surfaces of the magnetic poles are positioned and turned on the rabbets at the front end and the rear end of the shell.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the sweeping boring easily occurs in the prior art, and providing a device for preventing the sweeping boring of a stator and a rotor of a motor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a prevent that motor stator and rotor from sweeping device of boring, includes motor housing and output shaft, the output shaft rotates to be connected motor housing's one end, motor housing internal rotation is connected and is equipped with the axis of rotation, fixed connection is equipped with the rotor in the axis of rotation, the fixed a plurality of stators that are equipped with on motor housing's the shells inner wall, motor housing keeps away from the one end fixed connection of output shaft is equipped with a plurality of stoppers, first direction spout and second direction spout have been seted up on the motor housing, sliding connection is equipped with sliding sleeve on the circumference outer wall of stopper, sliding sleeve with first direction spout sliding connection is in the same place, state sliding sleeve with second direction spout sliding connection is in the same place, be equipped with the bearing in the axis of rotation, the last fixed spring that is equipped with of motor housing.

Preferably, the number of the stators is four, the stators are circumferentially and symmetrically arranged in the shell of the motor shell at equal intervals, and the stators and the rotor are coaxial and are arranged on the outer side of the circumference of the rotor.

Preferably, each of the stator inner circumferential surfaces has a radius of curvature greater than that of the rotor outer circumferential surface.

Preferably, the stopper is equipped with four and the equidistribution is two sets of, and every group is fixed respectively and sets up on motor housing, the stopper is the semicircle pipe, just the semicircle pipe leans out.

Preferably, the end part of the rotating shaft is provided with a clamping block matched with the limiting block, and the sliding sleeve is provided with a through groove matched with the circumferential outer wall of the limiting block.

The utility model provides a prevent that motor stator and rotor from sweeping device of boring, beneficial effect lies in: when in installation, the sliding sleeve slides along the first guide sliding groove and the second guide sliding groove, the spring is compressed, one end of the rotating shaft extends into the limiting block, then the sliding sleeve is loosened, under the action of the elasticity of the spring, the sliding sleeve closes the limiting block and clamps the limiting block on the outer wall of the bearing to fix the limiting block, so that the stability and concentricity of the rotating shaft during rotation are improved, the sweeping and boring phenomena of the rotor are effectively prevented, meanwhile, the curvature radius of the inner circumferential surface of the stator is larger than that of the outer circumferential surface of the rotor, therefore, the stator sweeping boring phenomenon is eliminated, the service life of the motor is prolonged, the air gap magnetic field distortion caused by armature reaction is weakened, the motor performance is improved, the device reasonable in design simple structure has effectually prevented sweeping the emergence of boring phenomenon, has greatly prolonged the life of motor, is fit for promoting.

Drawings

Fig. 1 is a schematic perspective view of a device for preventing a motor stator and a motor rotor from sweeping a bore according to the present invention;

FIG. 2 is a schematic cross-sectional view of a device for preventing the sweeping boring of the stator and the rotor of the motor according to the present invention;

fig. 3 is a schematic partial sectional structure diagram of a device for preventing the sweeping boring of the stator and the rotor of the motor according to the present invention.

In the figure: motor housing 1, output shaft 2, axis of rotation 3, bearing 4, first direction spout 5, sliding sleeve 6, spring 7, stopper 8, rotor 9, stator 10, second direction spout 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a device for preventing motor stator and rotor from sweeping bore, including a motor housing 1 and an output shaft 2, the output shaft 2 is rotatably connected to one end of the motor housing 1, a rotation shaft 3 is rotatably connected to the motor housing 1, a rotor 9 is fixedly connected to the rotation shaft 3, a plurality of stators 10 are fixedly arranged on the inner wall of the motor housing 1, a plurality of stoppers 8 are fixedly connected to one end of the motor housing 1 away from the output shaft 2, a first guide chute 5 and a second guide chute 11 are arranged on the motor housing 1, a sliding sleeve 6 is slidably connected to the outer wall of the circumference of the stopper 8, the sliding sleeve 6 is slidably connected to the first guide chute 5, the sliding sleeve 6 is slidably connected to the second guide chute 11, a bearing 4 is arranged on the rotation shaft 3, and a spring 7 is fixedly arranged on the motor housing 1.

Stator 10 is equipped with four and is equidistant circumference symmetry and sets up in motor housing 1's shell, stator 10 and rotor 9 are coaxial and set up in the circumference outside of rotor 9, the radius of curvature of every stator 10 inner circumference face all is greater than the radius of curvature of the outer periphery of rotor 9, stopper 8 is equipped with four and equally divide into two sets ofly, every group is fixed respectively and sets up on motor housing 1, stopper 8 is the semicircle pipe, and the semicircle pipe leans out, the tip of axis of rotation 3 be equipped with stopper 8 assorted fixture block, be equipped with the circumference outer wall assorted logical groove with stopper 8 on the sliding sleeve 6.

When the motor is installed, the sliding sleeve 6 slides along the first guide chute 5 and the second guide chute 11, the spring 7 is compressed, one end of the rotating shaft 3 extends into the limiting block 8, then the sliding sleeve 6 is loosened, and under the action of the elastic force of the spring 7, the limiting block 8 is closed in phase by the sliding sleeve 6 and clamped on the outer wall of the bearing 4 to be fixed, so that the stability and concentricity of the rotating shaft 3 during rotation are improved, the phenomenon of rotor bore sweeping is effectively prevented, meanwhile, the curvature radius of the inner circumferential surface of the stator 10 is larger than that of the outer circumferential surface of the rotor 9, the phenomenon of stator bore sweeping is eliminated, the service life of the motor is prolonged, air gap magnetic field distortion caused by armature reaction is weakened, and the performance of the motor is improved.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a prevent that motor stator and rotor from sweeping device of boring, includes motor housing (1) and output shaft (2), output shaft (2) rotates to be connected the one end of motor housing (1), its characterized in that, motor housing (1) internal rotation is connected and is equipped with axis of rotation (3), fixed connection is equipped with rotor (9) on axis of rotation (3), fixed a plurality of stators (10) of being equipped with on the shell inner wall of motor housing (1), motor housing (1) keeps away from the one end fixed connection of output shaft (2) is equipped with a plurality of stopper (8), motor housing (1) is last to have seted up first direction spout (5) and second direction spout (11), sliding connection is equipped with sliding sleeve (6) on the circumference outer wall of stopper (8), sliding sleeve (6) with first direction spout (5) sliding connection is in the same place, the sliding sleeve (6) is connected with the second guide sliding groove (11) in a sliding mode, a bearing (4) is arranged on the rotating shaft (3), and a spring (7) is fixedly arranged on the motor shell (1).

2. The device for preventing the sweeping boring of the stator and the rotor of the motor is characterized in that the stators (10) are four and are arranged in the shell of the motor shell (1) in a circumferentially symmetrical mode at equal intervals, and the stators (10) are coaxial with the rotor (9) and are arranged outside the circumference of the rotor (9).

3. The device for preventing the sweeping boring of the stator and the rotor of the motor as claimed in claim 1, wherein the radius of curvature of the inner circumferential surface of each stator (10) is larger than that of the outer circumferential surface of the rotor (9).

4. The device for preventing the sweeping boring of the stator and the rotor of the motor as claimed in claim 1, wherein the limiting blocks (8) are four and equally divided into two groups, each group is respectively and fixedly arranged on the motor casing (1), the limiting blocks (8) are semi-circular pipes, and the semi-circular pipes are inclined outwards.

5. The device for preventing the sweeping boring of the stator and the rotor of the motor is characterized in that a clamping block matched with the limiting block (8) is arranged at the end part of the rotating shaft (3), and a through groove matched with the outer wall of the circumference of the limiting block (8) is arranged on the sliding sleeve (6).