CN220570435U

CN220570435U - Sheath crimping device of hidden pole type permanent magnet rotor

Info

Publication number: CN220570435U
Application number: CN202321954573.9U
Authority: CN
Inventors: 王小进; 霍飞龙; 储桂龙
Original assignee: Jiangsu Xingyu Motor Co ltd
Current assignee: Jiangsu Xingyu Motor Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-03-08
Anticipated expiration: 2033-07-25

Abstract

A sheath crimping device of a non-salient pole permanent magnet rotor is used for crimping a sheath on a permanent magnet of the non-salient pole permanent magnet rotor. The permanent magnet rotor comprises a positioning disc (10) for placing a rotor core (2), wherein the end surface of the positioning disc is vertically connected with a pipe body (7), and the inner diameter of the pipe body is larger than the outer diameter of the non-salient pole permanent magnet rotor; a plurality of sliding blocks (4) with rectangular cross sections are symmetrically inserted into the wall of the pipe body, the number of the sliding blocks is equal to that of the permanent magnets (20), the inner sides of the sliding blocks are connected with pressure heads (3) capable of pressing out concave parts of the sheaths (22), the outer sides of the sliding blocks are connected with pin posts (5), the pin posts are inserted into cam grooves (21) of the rotary table 8, and the inner circle of the rotary table is sleeved on the pipe body (7) in a matched mode. The rotary table has the beneficial effects that the rotary table is rotated, the pin column moves inwards in the cam groove to drive the pressure head on the inner side of the sliding block to press out the concave part on the sheath, so that the sheath is fastened on the permanent magnet, the crimping efficiency and quality of the sheath and the permanent magnet are improved, and the processing difficulty of the sheath is reduced.

Description

Sheath crimping device of hidden pole type permanent magnet rotor

Technical Field

The utility model relates to a sheath crimping device of a non-salient pole permanent magnet rotor, which is used for crimping a sheath on a permanent magnet of the non-salient pole permanent magnet rotor.

Background

The hidden pole type permanent magnet rotor comprises iron cores and permanent magnets, wherein the permanent magnets are uniformly distributed on the surfaces of the iron cores, gaps are reserved among the permanent magnets, a sheath is sleeved on the permanent magnets in order to prevent the permanent magnets from generating displacement on the surfaces of the iron cores in the rotating process, an axial concave part is arranged on the surfaces of the sheath, the concave part is embedded among the permanent magnets, and the sheath is formed by stamping. The high-precision permanent magnet assembly device has the advantages that the high-precision permanent magnet assembly device requires high technical requirements for stamping of the sheath, the stamping of the sheath is inconvenient, and in addition, the wall thickness of the sheath is only about 0.08 mm, so that the sheath cannot be applied with large pressure in the assembly process of the sheath and the permanent magnet to prevent the sheath from deforming, and the assembly efficiency is low.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the sheath crimping device of the non-salient pole type permanent magnet rotor, which can facilitate the crimping between the sheath and the permanent magnet, ensure the crimping, and reduce the processing difficulty of the sheath.

The technical proposal of the utility model is that a sheath crimping device of a non-salient pole type permanent magnet rotor,

the positioning device comprises a positioning disc 10, wherein a boss 11 for placing a rotor core 2 is arranged in the center of the positioning disc, a hole matched with a rotating shaft 1 is formed in the boss, the end face of the positioning disc is vertically connected with a pipe body 7, and the inner diameter of the pipe body is larger than the outer diameter of a non-salient pole type permanent magnet rotor;

the pipe is characterized in that a plurality of sliding blocks 4 with rectangular cross sections are symmetrically inserted into the wall of the pipe body, the number of the sliding blocks is equal to that of the permanent magnets 20, the inner sides of the sliding blocks are connected with pressure heads 3 capable of pressing out concave parts of the sheath 22, the outer sides of the sliding blocks are connected with pin posts 5, the pin posts are inserted into cam grooves 21 of the rotary table 8, and the inner circle of the rotary table is sleeved on the pipe body 7 in a matched mode.

The use method comprises the steps of adsorbing permanent magnets on a rotor iron core, sleeving a sheath on the permanent magnets, placing the rotor iron core on a boss, and aligning the intervals between the permanent magnets with a pressure head; and then the turntable is rotated, the pin column moves inwards in the cam groove to drive the pressure head on the inner side of the sliding block to press out the concave part on the sheath, so that the sheath is fastened on the permanent magnet.

Compared with the prior art, the utility model has the beneficial effects that the inner circle of the sheath can be tightly attached to the outer circle of the permanent magnet, the concave part of the sheath is embedded between the adjacent permanent magnets, and the magnetic field pulling force of the stator can be prevented from changing the interval between the permanent magnets; the technical requirement of the sheath earlier stage processing is that only the inner circle of the sheath is matched with the outer circle of the permanent magnet, so that the processing difficulty of the sheath is reduced, and the sheath can be conveniently sleeved on the permanent magnet.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a top view of fig. 1.

Fig. 3 is an enlarged view of a portion C of fig. 2, in which the sheath, the permanent magnet, and the rotor core are drawn in cross section.

The attached sign: 1-rotating shaft, 2-iron core, 3-pressure head, 4-slider, 5-pin, 6-axle bed, 7-body, 8-carousel, 10-positioning disk, 11-boss, 12-base, 13-piston rod, 15-runner plate, 16-roller, 17-support, 18-cylinder, 20-permanent magnet, 21-cam groove, 22-sheath.

Detailed Description

The sheath crimping device of the non-salient pole type permanent magnet rotor comprises a positioning disk 10, wherein the positioning disk is arranged on a base 12, a boss 11 for placing a rotor core 2 is arranged at the center of the positioning disk, the diameter of the boss is slightly smaller than that of the rotor core, and a hole matched with a rotating shaft 1 is formed in the boss. The upper end face of the positioning disc is vertically connected with a pipe body 7, the inner diameter of the pipe body is larger than the outer diameter of the non-salient pole type permanent magnet rotor, and the interval between the pipe body and the non-salient pole type permanent magnet rotor is required to meet the requirement that the pressure head can withdraw from the concave part. The wall of the pipe body is symmetrically inserted with a plurality of sliding blocks 4 with rectangular cross sections, the number of the sliding blocks is equal to that of the permanent magnets 20, the inner sides of the sliding blocks are connected with pressure heads 3 capable of pressing out concave parts of the sheath 22, the outer sides of the sliding blocks are connected with shaft seats 6, one ends of pin posts 5 are inserted in the shaft seats, the other ends of the pin posts are inserted in cam grooves 21 of the rotary table 8, two ends of the pin posts are respectively provided with a clamping ring so as to prevent the pin posts from separating from the rotary table and the shaft seats, and the inner circle of the rotary table is sleeved on the pipe body 7 in a matched manner.

In order to improve the stability of the turntable, the edge of the turntable extends downwards to form a cylinder, and the lower end of the cylinder is arranged on the positioning disk in a spacing way.

The use method comprises the steps of adsorbing permanent magnets on a rotor iron core, sleeving a sheath on the permanent magnets, placing the rotor iron core on a boss, aligning the interval between the permanent magnets with a pressure head, rotating a turntable, enabling a pin column to move inwards in a cam groove, driving the pressure head on the inner side of a sliding block to press a concave part on the sheath, and fastening the sheath on the permanent magnets.

The rotation of carousel accessible lever manual work is stirred, in order to reduce intensity of labour, can drive the carousel with pneumatic mechanism, and pneumatic structure is, is connected with the draw runner board 15 at the edge of carousel, has inserted roller 16 in the spout of draw runner board, and the roller is connected perpendicularly with piston rod 13 of cylinder 18, and the cylinder passes through support 17 fixed connection on the positioning disk.

Claims

1. The sheath crimping device of the non-salient pole permanent magnet rotor comprises a positioning disc (10), wherein a boss (11) for placing a rotor core (2) is arranged in the center of the positioning disc, a hole matched with the rotating shaft (1) is formed in the boss, the end face of the positioning disc is vertically connected with a pipe body (7), and the inner diameter of the pipe body is larger than the outer diameter of the non-salient pole permanent magnet rotor;

the pipe is characterized in that a plurality of sliding blocks (4) with rectangular cross sections are symmetrically inserted into the wall of the pipe body, the number of the sliding blocks is equal to that of the permanent magnets (20), the inner sides of the sliding blocks are connected with pressure heads (3) capable of pressing out concave parts of the sheaths (22), the outer sides of the sliding blocks are connected with pin posts (5), the pin posts are inserted into cam grooves (21) of the rotary table (8), and the inner circle of the rotary table is sleeved on the pipe body (7) in a matched mode.

2. The sheath crimping device of the non-salient pole permanent magnet rotor according to claim 1, wherein a chute plate (15) is connected to the edge of the turntable, a roller (16) is inserted in a chute of the chute plate, the roller is vertically connected with a piston rod (13) of a cylinder (18), and the cylinder is fixedly connected to the positioning disk through a bracket (17).