CN216121961U

CN216121961U - Mounting structure of long permanent magnet

Info

Publication number: CN216121961U
Application number: CN202122637488.7U
Authority: CN
Inventors: 徐广人; 梁丙雪; 王磊; 廖国华; 萧阳; 崔思楠; 董胜波; 黄丽
Original assignee: Shenyang Bluelight Drive Technology Co ltd
Current assignee: Shenyang Bluelight Drive Technology Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-03-22
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a mounting structure of a long permanent magnet, which comprises a main shaft and a rotor sleeve which are matched with each other, wherein two or more groups of the rotor sleeve are sleeved; a plurality of groups of permanent magnets are arranged at intervals in the circumferential direction of the rotor sleeve; the two ends of each rotor sleeve are provided with fixed clapboards, the fixed clapboards are in a tooth ring shape, and the end parts of the permanent magnets are clamped between the two teeth; end plates are also arranged at the ends of the two rotor sleeves at the outer sides. By adopting the mounting structure, the stable mounting of the long permanent magnet can be realized, and the equivalent use effect of the long permanent magnet can be achieved. By dividing the long permanent magnet into two or more sections, the length of a single permanent magnet is shortened, the yield is improved, and the manufacturing difficulty is reduced.

Description

Mounting structure of long permanent magnet

Technical Field

The utility model belongs to the technical field of tractor structures, and particularly relates to a mounting structure of a long permanent magnet in a rotor assembly.

Background

The inner rotor traction machine is composed of an inner rotor and a stator, wherein the inner rotor is a power component for realizing the rotation of the traction machine, and the rotation of the traction machine is realized through the inner rotor. The permanent magnets in the inner rotor are the main components that cooperate with the stator. In order to achieve the efficiency of the hoist, to realize different rotational speeds and to realize various operation modes, a long iron core is generally required, and the length of the permanent magnet also needs to be changed correspondingly with the change of the length of the iron core. This problem not only affects the manufacturing cost, but also limits the design requirements of the designer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mounting structure of a long permanent magnet, which solves the problems in the prior art.

The utility model is realized by the following technical scheme: the utility model provides a mounting structure of long permanent magnet, includes main shaft and rotor cover of mutually supporting, its characterized in that: two or more groups of rotor sleeves are sleeved on the rotor; a plurality of groups of permanent magnets are arranged at intervals in the circumferential direction of the rotor sleeve; the two ends of each rotor sleeve are provided with fixed clapboards, the fixed clapboards are in a tooth ring shape, and the end parts of the permanent magnets are clamped between the two teeth; end plates are also arranged at the ends of the two rotor sleeves at the outer sides.

Further: the rotor cover has 2-4 groups.

Further: the permanent magnet is fixedly bonded with the rotor sleeve.

Further: the fixed partition plate and the end plate are fixed on the rotor sleeve through bolts.

Further: the end plate is annular or fan-shaped.

Further: the fixed clapboard is formed by enclosing a plurality of fan-shaped rings with teeth.

The utility model has the beneficial effects that: by adopting the mode, the stable installation of the long permanent magnet can be realized, and the equivalent use effect of the long permanent magnet is achieved. By dividing the long permanent magnet into two or more sections, the length of a single permanent magnet is shortened, the yield is improved, and the manufacturing difficulty is reduced.

Drawings

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

FIG. 2 is a schematic cross-sectional structural view of the present invention;

fig. 3 is an enlarged schematic view of the structure at I in fig. 2.

The sequence numbers in the figures illustrate: the rotor comprises a main shaft 1, a rotor sleeve 2, an end plate 3, a countersunk screw 4, a fixed partition plate 5, a permanent magnet 6 and a locking nut 7.

Detailed Description

As shown in fig. 1-3, the present invention provides a mounting structure of a long permanent magnet, which comprises a main shaft 1 and a rotor sleeve 2, which are matched with each other, wherein two or more groups of the rotor sleeves are provided; a plurality of groups of permanent magnets 6 are arranged at intervals in the circumferential direction of the rotor sleeve, the permanent magnets are single magnetic poles, and N, S are arranged at intervals; the two ends of each rotor sleeve are respectively provided with a fixed clapboard 5, the fixed clapboards are in a tooth ring shape or a tooth ring shape consisting of a plurality of parts, the shape of teeth on the fixed clapboards is large outside and small inside, the end parts of the permanent magnets are clamped between the two teeth, and the circumferential and radial fixing effects are achieved; end plates 3 are further arranged at the ends of the two rotor sleeves on the outer sides to fix the permanent magnets in the axial direction. The permanent magnets on the adjacent rotor sleeves are correspondingly arranged, and the polarities and the positions of the magnetic poles are consistent. A lock nut 7 is provided outside the endmost rotor bushing.

Preferably: the rotor is sleeved with 2-4 groups which are sleeved on the main shaft in sequence.

Preferably: the permanent magnet is fixedly bonded with the rotor sleeve.

Preferably: the fixed partition plate and the end plate are fixed on the rotor sleeve through bolts or countersunk screws 4.

Preferably: the end plate is annular or fan-shaped.

Preferably: the fixed clapboard is formed by enclosing a plurality of fan-shaped rings with teeth.

The assembly process of the structure of the utility model is as follows, firstly, the assembly of the first set of rotor sleeve assembly is carried out, firstly, the rotor sleeve is fixed together with the permanent magnet fixed clapboard and a permanent magnet end plate, and then the permanent magnet fixed clapboard at the other side is fixed on the rotor sleeve. The surface of the rotor sleeve is coated with adhesive glue, and the permanent magnets are sequentially inserted into each separation groove (two-tooth gap) according to the position of each groove, so that the separation and fixation effects of the fixed partition plates are realized. When the permanent magnet is installed, the distribution of magnetic poles needs to be noticed, and meanwhile, the permanent magnet is determined not to fall off from the separation groove.

And assembling the second set of rotor sleeve components according to the assembling sequence of the first set of rotor sleeve components.

The main shaft is placed in the tool, and the first rotor sleeve assembly is pressed into the main shaft, so that the direction of the magnetic pole needs to be paid attention (the position of the magnetic pole is confirmed). Then the second set of rotor sleeve component is aligned to the magnetic pole, and then pressed into the main shaft and pressed to the bottom, so that the magnetic pole of the permanent magnet is correspondingly placed, the effect of a long permanent magnet can be achieved, and the use of the long permanent magnet is realized.

Finally, the locking nut is installed on the main shaft, and the two sets of assemblies are locked and pressed.

The proposal effectively realizes the purpose of installing the long permanent magnet in some inner rotor traction machines, thereby solving the problems that the manufacture of the overlong permanent magnet is difficult to realize and the rejection rate is higher due to the manufacture influence of the length of the permanent magnet in the prior art. The scheme adopts a two-section or multi-section mounting mode, and the mounting structure of the long permanent magnet can meet the use requirement and can conveniently realize the effect of the long permanent magnet. And simultaneously, the design difficulty is also reduced.

Claims

1. The utility model provides a mounting structure of long permanent magnet, includes main shaft and rotor cover of mutually supporting, its characterized in that: two or more groups of rotor sleeves are sleeved on the rotor; a plurality of groups of permanent magnets are arranged at intervals in the circumferential direction of the rotor sleeve; the two ends of each rotor sleeve are provided with fixed clapboards, the fixed clapboards are in a tooth ring shape, and the end parts of the permanent magnets are clamped between the two teeth; end plates are also arranged at the ends of the two rotor sleeves at the outer sides.

2. The mounting structure of a long permanent magnet according to claim 1, wherein: the rotor cover has 2-4 groups.

3. The mounting structure of a long permanent magnet according to claim 1, wherein: the permanent magnet is fixedly bonded with the rotor sleeve.

4. The mounting structure of a long permanent magnet according to claim 1, wherein: the fixed partition plate and the end plate are fixed on the rotor sleeve through bolts.

5. The mounting structure of a long permanent magnet according to claim 1, wherein: the end plate is annular or fan-shaped.

6. The mounting structure of a long permanent magnet according to claim 1, wherein: the fixed clapboard is formed by enclosing a plurality of fan-shaped rings with teeth.