CN215378731U

CN215378731U - Permanent magnet motor assembling mould

Info

Publication number: CN215378731U
Application number: CN202121669367.4U
Authority: CN
Inventors: 王洪久; 曹建春; 李微; 张思思; 李洪生
Original assignee: Fushun Coal Mine Motor Manufacturing Co Ltd
Current assignee: Fushun Coal Mine Motor Manufacturing Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-12-31
Anticipated expiration: 2031-07-22

Abstract

The utility model discloses a permanent magnet motor assembling mould which comprises a disc-shaped base, wherein the upper end of the base is abutted against the axial end of a rotor, the lower end of the base is provided with a limiting ring, a radial screw hole is formed in the limiting ring, and the front end of a main shaft of the rotor penetrates through the limiting ring and is locked by a first positioning screw screwed on the limiting ring; the outer ring of the lower end of the base is provided with a plurality of positioning columns, screw holes are formed in the positioning columns, through holes are formed in the lower ends of the magnetic isolating strips, and second positioning screws penetrate through the through holes and are screwed on the positioning columns; the upper end of the magnetic isolation strip is tightly attached to the outer side of the rotor. The utility model has the advantages that: the rotor and the clamping fixture are fixed by the aid of the first positioning screws, the magnetic isolation strips made of the white steel plates are assembled with the clamping fixture well, the second positioning screws are fixed by the aid of the bolts to form an assembly, the assembly is assembled with the stator oppositely, and the clamping fixture and the magnetic isolation strips are taken out after the assembly is completed, so that the influence of strong magnetism on assembly of the permanent magnet motor is avoided, and product quality is improved.

Description

Permanent magnet motor assembling mould

Technical Field

The utility model relates to the field of machinery, in particular to an assembling mould of a motor.

Background

Because the magnetic steel is arranged in the rotor of the permanent magnet motor, the permanent magnet motor has strong magnetism. During assembly, the rotor and the stator are adsorbed together, so that the assembly cannot be continued, a press machine is needed to apply pressure to enable the rotor to be assembled in place, the inner diameter and the outer diameter of the stator and the rotor can rub with each other in the process, and then the stator and the rotor are separated to generate air gaps by means of matching of the end covers and the bearings. The assembly process often causes damage to parts and insulation, and the quality of the motor is affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model aims to provide a permanent magnet motor assembling mould which comprises a disc-shaped base, wherein the upper end of the base is abutted against the axial end of a rotor, the lower end of the base is provided with a limiting ring, a radial screw hole is formed in the limiting ring, and the front end of a main shaft of the rotor penetrates through the limiting ring and is locked by a first positioning screw screwed on the limiting ring; the outer ring of the lower end of the base is provided with a plurality of positioning columns, screw holes are formed in the positioning columns, through holes are formed in the lower ends of the magnetic isolating strips, and second positioning screws penetrate through the through holes and are screwed on the positioning columns; the upper end of the magnetic isolation strip is tightly attached to the outer side of the rotor.

The positioning columns are in multiple groups and are uniformly distributed along the circumferential direction of the chassis; every reference column all sets up one and separates the magnetic stripe.

Symmetrical grooves are formed in the bending position of the lower end of the magnetic isolation strip.

And the outer side of the upper end of the magnetic isolation strip is provided with a magnet, and the radian of the inner side of the magnet is consistent with that of the rotor.

A plurality of through holes are formed in the base.

The through holes are arranged in a circle concentric with the base plate.

The utility model has the advantages that: the rotor and the clamping fixture are fixed by the first positioning screw, the magnetic isolation strip made of the white steel plate is assembled with the clamping fixture, the rotor and the clamping fixture are fixed by the second positioning screw of the bolt to form an assembly, the assembly and the stator) are assembled in a butt joint mode, and the clamping fixture and the magnetic isolation strip are taken out after the assembly is completed, so that the influence of strong magnetism on the assembly of the permanent magnet motor is solved, and the product quality is improved.

Drawings

FIG. 1 is a schematic view of the connection structure of the clamping fixture with the stator and the rotor;

FIG. 2 is a schematic structural view of a chassis;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of the position B in FIG. 2;

FIG. 5 is an expanded view of the magnetic shielding strip;

FIG. 6 is a side view of a magnetic shield strip.

Detailed Description

The utility model is described in detail below with reference to the accompanying drawings, as shown in the drawings, the utility model includes a disc-shaped base 4, the upper end of the base is abutted against the axial end of the rotor 1, the lower end of the base 4 is provided with a limit ring 42, the limit ring 42 is provided with a radial screw hole 43, the front end of the main shaft of the rotor passes through the limit ring 42 and is locked by a first positioning screw 6 screwed on the limit ring; a plurality of positioning columns 44 are arranged on the outer ring of the lower end of the base, screw holes 41 are formed in the positioning columns, through holes are formed in the lower ends of the magnetic isolation strips 3, and second positioning screws 5 penetrate through the through holes and then are screwed on the positioning columns 44; the upper end of the magnetic isolation strip is tightly attached to the outer side of the rotor. When the magnetic isolation device is used, in order to prevent the upper end of the magnetic isolation strip from overturning outwards, the outer side of the upper end of the magnetic isolation strip is provided with the magnet, the magnet is attracted by magnetic force and is pressed on the outer side of the rotor, and the radian of the inner side of the magnet is consistent with that of the rotor. As the rotor is fitted inside the stator, the magnet is blocked by the gap between the rotor and the stator, and gradually retreats, and thus, the magnet is not shown in fig. 1.

The positioning columns 44 are in multiple groups and are uniformly distributed along the circumferential direction of the chassis 4; every reference column all sets up one and separates magnetic stripe 3.

Symmetrical grooves 32 are formed in the bending part 31 at the lower end of the magnetic isolation strip, and the grooves 32 are arranged to facilitate bending of the magnetic isolation strip, reduce elasticity and ensure that the magnetic isolation strip is tightly attached to the outer side of the rotor;

in order to reduce weight and save materials, a plurality of through holes 45 are arranged on the base.

The through holes are arranged in a circle concentric with the base plate.

Claims

1. The utility model provides a permanent-magnet machine assembles mould which characterized in that: the rotor positioning device comprises a disc-shaped base, wherein the upper end of the base is abutted against the axial end of a rotor, the lower end of the base is provided with a limiting ring, a radial screw hole is formed in the limiting ring, and the front end of a main shaft of the rotor penetrates through the limiting ring and is locked by a first positioning screw screwed on the limiting ring; the outer ring of the lower end of the base is provided with a plurality of positioning columns, screw holes are formed in the positioning columns, through holes are formed in the lower ends of the magnetic isolating strips, and second positioning screws penetrate through the through holes and are screwed on the positioning columns; the upper end of the magnetic isolation strip is tightly attached to the outer side of the rotor.

2. The permanent magnet motor assembling jig as claimed in claim 1, wherein: the positioning columns are in multiple groups and are uniformly distributed along the circumferential direction of the chassis; every reference column all sets up one and separates the magnetic stripe.

3. The permanent magnet motor assembling jig as claimed in claim 1, wherein: symmetrical grooves are formed in the bending position of the lower end of the magnetic isolation strip.

4. The permanent magnet motor assembling jig as claimed in claim 1, wherein: and the outer side of the upper end of the magnetic isolation strip is provided with a magnet, and the radian of the inner side of the magnet is consistent with that of the rotor.

5. The permanent magnet motor assembling jig as claimed in claim 1, wherein: a plurality of through holes are formed in the base.

6. The permanent magnet motor assembling jig as claimed in claim 5, wherein: the through holes are arranged in a circle concentric with the base plate.