CN213906410U

CN213906410U - Rotor positioning device

Info

Publication number: CN213906410U
Application number: CN202022512804.3U
Authority: CN
Inventors: 尤培伟; 梁戈; 吴泽钊
Original assignee: Shenzhen Gaojing Motor Co ltd
Current assignee: Shenzhen Gaojing Motor Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-08-06
Anticipated expiration: 2030-11-03

Abstract

The application relates to the technical field of motors, in particular to a rotor positioning device, which comprises a limiting part, wherein the limiting part is sleeved on the output end of a rotor, and one end, away from a coil, of the limiting part is inconsistent with a shell. The present application has the following effects: utilize the locating part to carry on spacingly to the rotor to when the rotor has the displacement trend, the locating part will offset the displacement trend of rotor, and then accomplish the spacing to the rotor, reduced the rotor and taken place the possibility of displacement in the casing, improved the stability of rotor when the casing internal rotation.

Description

Rotor positioning device

Technical Field

The application relates to the technical field of motors, in particular to a rotor positioning device.

Background

An electric machine, commonly known as a "motor", refers to an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction, and its main function is to generate driving torque as a power source for electrical appliances or various machines.

At present, an existing motor generally includes a rotor, a stator, and a casing, wherein the rotor itself has a plurality of winding slots along its length direction for embedding coils, the stator has a pair of dc excited stationary main poles, the rotor is rotatably connected in the casing, and the stator is sleeved on the periphery of the rotor and fixed in the casing.

The inventors of the above-mentioned related art consider that the following drawbacks exist: in actual use, the motor may be collided, so that the rotor tends to be displaced in the housing, thereby affecting the stability of the rotation of the rotor.

SUMMERY OF THE UTILITY MODEL

In order to guarantee the stability of rotor when the casing internal rotation, this application provides a rotor positioner.

The application provides a rotor positioner adopts following technical scheme:

the utility model provides a rotor positioning device, includes the locating part, the locating part cover is established on the output of rotor, the one end and the casing counterbalance of coil are kept away from to the locating part.

Through adopting above-mentioned technical scheme, the locating part will be established on the output of rotor, and the one end of locating part can be inconsistent with the casing on the output to when the rotor has the trend of displacement in the casing, the locating part will be inconsistent with the casing on the output of rotor, and then offsets the displacement trend of rotor, accomplishes spacing to the rotor, has improved the stability of rotor when the casing internal rotation.

Preferably, the locating part includes the stopper, the spacing groove has been seted up on the stopper, the both ends opening setting of spacing groove, the output of rotor inlays to be established and stretches out from the other end of spacing groove behind the one end of spacing groove.

Through adopting above-mentioned technical scheme, seting up of spacing groove will make the stopper can overlap on the output of rotor to the stopper can provide spacing effect for the rotor, and the both ends opening setting of spacing groove, and then the rotor can pass the stopper, makes the stopper difficult output that causes the influence to the rotor when providing spacing effect for the rotor.

Preferably, a gasket is arranged on one side, close to the coil, of the limiting block, and a positioning groove for embedding the limiting block is formed in the gasket.

Through adopting above-mentioned technical scheme, the setting up of gasket will reduce the possibility that takes place direct contact between stopper and the coil to reduced the possibility that the stopper directly oppressed the coil, and then ensured the structural integrity of coil, reduced the impaired possibility of coil, further ensured the life of rotor.

Preferably, the limiting member is provided with an embedding groove, and the output end of the rotor is embedded in the embedding groove in an interference manner.

Through adopting above-mentioned technical scheme, the locating part then can the interference inlay establish on the output of rotor to the locating part will be difficult for taking place to remove, and then when the rotor has the trend of displacement in the casing, the locating part will carry on spacingly to the rotor with the cooperation of the output of rotor, has ensured the stability of rotor in the casing.

Preferably, be provided with a plurality of solid fixed rings on the output of rotor, set up the fixed slot that supplies solid fixed ring embedding on the inside wall of inlaying the groove.

Through adopting above-mentioned technical scheme, when the locating part inlays to be established on the output of rotor, solid fixed ring will be embedded into the fixed slot to the cooperation of solid fixed ring and fixed slot will further improve the stability of locating part when establishing on the output of rotor, has reduced the possibility that the locating part takes place the displacement on the output of rotor, and then has improved the stability of locating part, has ensured the spacing effect of locating part to the rotor.

Preferably, the longitudinal cross-sectional area of the limiting member gradually increases from one end close to the coil to one end far away from the coil.

By adopting the technical scheme, the longitudinal section area of the limiting part reaches the maximum from the longitudinal section area of the limiting part to one end, away from the coil, of the limiting part, so that the contact area between the limiting part and the shell is increased when the limiting part collides with the shell, the pressure intensity of the limiting part on the unit area of the shell is reduced when the limiting part limits the rotor, and the possibility of deformation of the shell is further reduced.

Preferably, the other end of the rotor is sleeved with a steering gear, and one end of the steering gear, which is close to the coil, is provided with a positioning piece.

Through adopting above-mentioned technical scheme, the setting element will cooperate with the locating part, provides spacing effect for the rotor jointly, and the setting up of setting element will make the distance of coil and steering gear invariable to make the rotor difficult because of factors such as installation direction and emergence skew when casing internal rotation, and then ensured the stability of rotor when rotating.

Preferably, a through groove for embedding the rotor is formed in the positioning piece, and the end part of the rotor is embedded in the through groove in an interference manner.

Through adopting above-mentioned technical scheme, the seting up of leading to the groove will be for providing the connection effect between setting element and the rotor for the setting element can be fixed on the tip of rotor through leading to the groove, and interference fit between rotor and the setting element will improve the stability of setting element when fixing on the tip of rotor, thereby has ensured the location effect of setting element to the rotor.

Preferably, the rotor is provided with a clamping groove for embedding the positioning piece.

Through adopting above-mentioned technical scheme, seting up of draw-in groove will improve the setting element and inlay the suitability of establishing on the rotor, and the draw-in groove will provide spacing effect for the setting element, has further improved the stability of setting element to improve the spacing effect of setting element to the rotor, and then improved the stability of rotor when the casing rotates.

In summary, according to the present application, at least one of the following beneficial technical effects can be obtained:

1. the limiting piece is used for limiting the rotor, so that when the rotor has a displacement trend, the limiting piece can offset the displacement trend of the rotor, the limitation on the rotor is further completed, the possibility of the rotor displacing in the shell is reduced, and the stability of the rotor rotating in the shell is improved;

2. through setting up the setting element, improved the spacing effect of locating part to the rotor, further ensured the stability of rotor when rotating.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is an exploded view of the present application;

FIG. 3 is a schematic structural diagram of embodiment 2 of the present application;

fig. 4 is a sectional view of embodiment 3 of the present application.

Reference numerals: 100. a limiting member; 110. a limiting block; 111. embedding a groove; 112. a fixing ring; 113. fixing grooves; 120. a limiting groove; 130. a gasket; 140. positioning a groove; 200. a diverter; 210. a positioning member; 220. a through groove; 230. a clamping groove.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Example 1:

referring to fig. 1, the application discloses a rotor positioning device, can carry out spacingly to the rotor when the rotor has the displacement trend to offset the displacement trend of rotor, and then ensured the stability of rotor when the casing rotates. The rotor structure comprises a limiting piece 100, wherein the limiting piece 100 is sleeved on an output end of the rotor, and one end, far away from a coil, of the limiting piece 100 is abutted to a shell. The locating part 100 is arranged to keep the distance between the coil on the rotor and the housing constant when the rotor rotates, and when the rotor tends to move due to collision or extrusion, the locating part 100 collides with the housing to counteract the movement tendency of the rotor, thereby ensuring the stability of the rotor when the rotor rotates in the housing.

Referring to fig. 1, in this embodiment, the limiting member 100 includes a limiting block 110, the limiting block 110 is made of a metal material, and a limiting groove 120 is formed in the limiting block 110, in this embodiment, openings are formed at two ends of the limiting groove 120, and an output end of the rotor extends out of the other end of the limiting groove 120 after being embedded into one end of the limiting groove 120, so that the limiting block 110 is fixed at the output end of the rotor to limit the rotor. In order to reduce the possibility that the limiting block 110 is detached from the output end of the rotor, a glue layer is arranged in the limiting groove 120, so that the limiting block 110 can be bonded to the output end of the rotor; the limiting groove 120 can be tightly connected with the output end of the rotor in a hot melting processing mode; or the limiting block 110 is embedded on the output end of the rotor in an interference fit manner. When the fixed can make the rotor have the displacement trend of stopper 110, the one end that stopper 110 kept away from the coil will conflict with taking place between the casing to offset the displacement trend of rotor, ensured the stability of rotor when rotating.

Referring to fig. 1 and 2, in order to reduce the rotation that the rotor is influenced by the contact between the limiting block 110 and the coil, the limiting block 110 is further provided with a gasket 130 at one end close to the coil, and the gasket 130 is made of plastic in this embodiment, so that the gasket 130 isolates the contact between the coil and the limiting block 110, and further provides an insulating effect between the coil and the limiting block 110, thereby ensuring the stability of the rotor during rotation. The gasket 130 is further provided with a positioning groove 140 for the limiting block 110 to be embedded in, and the positioning groove 140 can improve the adaptability between the gasket 130 and the limiting block 110, so that the integrity between the gasket 130 and the limiting block 110 is improved.

Referring to fig. 2, in the present embodiment, a steering gear 200 is sleeved on the other end of the rotor, and a positioning member 210 is disposed on one end of the steering gear 200 close to the coil, wherein the positioning member 210 is made of plastic material, so as to reduce the possibility that the steering gear 200 directly touches the coil body. Correspondingly, set up the logical groove 220 (not shown in the figure) that supplies the tip embedding of rotor on the setting element 210, and the tip of rotor then interference embedding is in logical groove 220 to setting element 210 will be difficult for taking off from the tip of rotor, and then setting element 210 will cooperate with locating part 100, makes the distance between coil on the rotor and the casing keep invariable, has reduced the rotor and has taken place the possibility of displacement in the casing, has further ensured the stability of rotor when rotating.

Referring to fig. 2, the rotor is further provided with a slot 230 for the positioning element 210 to be inserted into, and the positioning element 210 is inserted into the slot 230, so that the opening of the slot 230 improves the adaptability between the rotor and the positioning element 210, and further improves the integrity between the rotor and the positioning element 210. In this embodiment, the positioning element 210 may be embedded into the slot 230 in an interference fit manner, so as to reduce the possibility of looseness of the positioning element 210, and ensure the limiting effect of the positioning element 210 on the rotor.

Example 2:

referring to fig. 3, the present embodiment is different from embodiment 1 only in that: in this embodiment, the limiting member 100 is made of a plastic material and is formed in a cylindrical shape, the limiting member 100 is provided with an embedding groove 111, and the output end of the rotor is embedded in the embedding groove 111 in an interference manner, so that the limiting member 100 is fixed at the output end of the rotor, and the limiting member 100 limits the position of the rotor in the housing, thereby ensuring the stability of the rotor during rotation. Correspondingly, the longitudinal sectional area of the limiting member 100 gradually increases from the end close to the coil to the end far away from the coil, so that the longitudinal sectional area of the end close to the casing of the limiting member 100 is larger than the other end of the limiting member 100, and further, when the limiting member 100 collides with the casing, the pressure per unit area on the casing is reduced, and the probability of deformation of the casing is reduced.

Example 3:

referring to fig. 4, the present embodiment is different from embodiment 2 only in that: in this embodiment, the output end of the rotor is integrally formed with a plurality of fixing rings 112, the inner side wall of the embedding groove 111 is provided with a fixing groove 113 for embedding the fixing rings 112, and the matching between the fixing rings 112 and the fixing groove 113 further improves the stability of the limiting member 100 when matching with the output end of the rotor, thereby further ensuring the limiting effect of the limiting member 100 on the rotor.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A rotor positioning device, characterized by: the rotor comprises a limiting piece (100), wherein the limiting piece (100) is sleeved on the output end of the rotor, and one end, far away from a coil, of the limiting piece (100) is abutted to a shell; the limiting piece (100) is provided with an embedding groove (111), and the output end of the rotor is embedded in the embedding groove (111) in an interference manner.

2. A rotor positioning device according to claim 1, wherein: the limiting part (100) comprises a limiting part (110), a limiting groove (120) is formed in the limiting part (110), openings are formed in two ends of the limiting groove (120), and the output end of the rotor is embedded into one end of the limiting groove (120) and then extends out of the other end of the limiting groove (120).

3. A rotor positioning device according to claim 2, wherein: a gasket (130) is arranged on one side, close to the coil, of the limiting block (110), and a positioning groove (140) for embedding the limiting block (110) is formed in the gasket (130).

4. A rotor positioning device according to claim 1, wherein: the output end of the rotor is provided with a plurality of fixing rings (112), and the inner side wall of the embedding groove (111) is provided with a fixing groove (113) for embedding the fixing rings (112).

5. A rotor positioning device according to claim 1, wherein: the longitudinal sectional area of the limiting piece (100) is gradually increased from one end close to the coil to one end far away from the coil.

6. A rotor positioning device according to claim 1, wherein: the other end of the rotor is sleeved with a steering gear (200), and one end, close to the coil, of the steering gear (200) is provided with a positioning piece (210).

7. A rotor positioning device according to claim 6, wherein: a through groove (220) for embedding the rotor is formed in the positioning piece (210), and the end part of the rotor is embedded in the through groove (220) in an interference mode.

8. A rotor positioning device according to claim 7, wherein: the rotor is provided with a clamping groove (230) for the positioning piece (210) to be embedded into.