CN215897544U

CN215897544U - Permanent magnet motor rotor core inserts magnet steel frock

Info

Publication number: CN215897544U
Application number: CN202122163870.9U
Authority: CN
Inventors: 郑浩
Original assignee: Jiangsu Yunyi Electric Co Ltd
Current assignee: Jiangsu Yunyi Electric Co Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-02-22
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a tool for inserting magnetic steel into a rotor core of a permanent magnet motor, which comprises a base, wherein a secondary stepped shaft-shaped support column is fixed at the center of the base, the support column is provided with an inserting plate with a central hole, one end with a large diameter of the support column is attached to the base, one section with a small diameter of the support column penetrates into the central hole, the inserting plate is made of non-ferromagnetic material, the inserting plate is provided with an inserting groove for inserting the magnetic steel, the inner end surface of the inserting plate is provided with a limiting groove for limiting the rotor core, the outer part of the inserting plate is provided with a pressing plate which is matched with the support column to limit the inserting plate to move, V-shaped and one-shaped magnetic steel can be conveniently inserted into the rotor core from the inserting groove through the arrangement of the support column, the inserting plate and the pressing plate, and the rotor core cannot deform due to the increase of the number of the magnetic steel inserted into the rotor core.

Description

Permanent magnet motor rotor core inserts magnet steel frock

Technical Field

The utility model belongs to the technical field of permanent magnet motor rotors, and particularly relates to a tool for inserting magnetic steel into a permanent magnet motor rotor core.

Background

In recent years, with the environmental importance, the national attention on new energy automobiles is getting heavier, and therefore the permanent magnet motor is also more important as a new energy motor. The permanent magnet motor has the advantages of high efficiency, large specific power, high power factor, high reliability and convenient maintenance. The vector-controlled variable-frequency speed regulating system is adopted, so that the permanent magnet motor has a wide speed regulating range. Therefore, permanent magnetization of the motor becomes one of important development directions of motor driving technology, and particularly in the aspect of motor driving technology of an electric vehicle, the motor driving system for the electric vehicle is restricted by vehicle space limitation and use environment, is different from a common electric transmission system, and has higher requirements on performance, higher volume/weight density and higher ambient temperature, and power electronics and motor technology for common motor driving cannot meet the requirements. Therefore, permanent magnetization will become one of the development directions of the automobile motor in the future. The working principle of the permanent magnet synchronous motor is as follows: when the stator part of the permanent magnet synchronous motor is introduced with three-phase alternating current which is subjected to pulse width modulation by a three-phase inverter, a stator armature can generate a space magnetic field, the space magnetic field interacts with a permanent magnet rotor, and electromagnetic torque output with the same rotating direction of a stator rotating magnetic field is generated. When the output torque T exceeds the friction torque of the rotor and the damping torque due to the permanent magnets, the motor starts to do work outwards and continuously accelerates until synchronization. According to the statistics of data of Ministry of industry and communications, in 12 months in 2018, the number of motors carried by the new energy passenger car in China exceeds 16 thousands, and the proportion of the permanent magnet motor is as high as 92.3%.

The permanent magnet motor is a rotor with a built-in structure, an iron core of the permanent magnet motor rotor is formed by laminating and pressing silicon steel sheets, and magnetic steel needs to be inserted after the permanent magnet motor rotor is pressed and installed. Most of the existing methods for manually inserting the magnetic steel have the disadvantages that the fingers of staff are easily injured due to strong magnetic steel suction in the manufacturing process, the magnetic steel placement process is fragile and easy to miss, the production efficiency and the quality are influenced, and along with the increase of the magnetic steel insertion quantity, a rotor core is easy to separate, so that the performance of the whole motor is influenced. Therefore, a permanent magnet motor rotor core magnetic steel inserting tool needs to be designed.

Disclosure of Invention

The utility model aims to provide a permanent magnet motor rotor core magnetic steel inserting tool, which solves the technical problems that in the background technology, magnetic steel and a rotor core are easily damaged and operators are easily injured due to the fact that magnetic steel is manually inserted.

In order to achieve the purpose, the specific technical scheme of the tool for inserting the magnetic steel into the rotor core of the permanent magnet motor is as follows:

the utility model provides a permanent-magnet machine rotor core inserts magnet steel frock, the on-line screen storage device comprises a base, the base center is fixed with the support column of second grade step shaft form, the support column sets the picture peg of taking the centre bore, the tight base is pasted to the one end that the support column diameter is big, the centre bore is worn to one section axle that the support column diameter is little, the picture peg is non-ferromagnetic material, the picture peg is equipped with the slot that is used for inserting the magnet steel, terminal surface is equipped with the spacing groove that is used for spacing rotor core in the picture peg, the picture peg outside is equipped with the clamp plate with the spacing picture peg activity of support column cooperation, through the support column, the setting up of picture peg and clamp plate can be very convenient with "V" type and "one" type magnet steel insert the rotor core from the slot, and at the in-process of inserting the magnet steel, rotor core can not warp because of magnet steel male increase in quantity.

Further, the base is equipped with the screw hole that is used for fixed support post, and the support post is equipped with the screw hole adapted, with simple and easy ripe structure fixed base and support post.

Furthermore, a counter bore is arranged on the outer end face of the screw hole in a matched mode, and the situation that the screw head protrudes to influence the fixed assembly of the base and the workbench is avoided.

Further, the base is provided with a fixing assembly hole for fixing the tool on the workbench.

Further, the clamp plate is provided with press mounting holes, the support column is provided with screw holes matched with the press mounting holes, the length of the screw of the fixed clamp plate can be changed, the rotor iron core with different thicknesses can be matched with the screw holes, and magnetic steel is inserted into the rotor iron core, so that the universality of the tool is improved.

Furthermore, the inner end face of the inserting plate is provided with a protrusion for limiting the transverse displacement of the rotor core, so that the rotor core is effectively limited from generating displacement when the magnetic steel is inserted.

Furthermore, the bulge is a circular boss arranged according to the contour of the central hole, and a limit groove is arranged on the circular boss, so that the limit capacity of the rotor core is further enhanced.

Furthermore, the inner end face of the inserting plate is provided with a rivet avoiding hole for avoiding a screw hole on the rotor core.

Furthermore, the outer end face of the inserting plate is provided with a magnetic direction mark, so that the magnetic steel polarity direction can be checked by using direction mark information on a tool when the magnetic steel is inserted.

Further, the picture peg adopts aluminum alloy material to make, when inserting the magnet steel, can keep apart the suction between magnet steel and the silicon steel sheet, prevents that the staff from pressing from both sides the injury in work, also prevents that sudden suction from making the magnet steel break, can accomplish more easily during the staff operation.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the V-shaped and the I-shaped magnetic steels can be conveniently inserted into the rotor core from the slots through the arrangement of the supporting columns, the inserting plates and the pressing plates, and in the process of inserting the magnetic steels, the rotor core cannot be deformed due to the increase of the number of the inserted magnetic steels, so that the magnetic steels and the rotor core are easily damaged when the magnetic steels are manually inserted, the material cost is reduced, the material waste is avoided, meanwhile, the clamping risk of operators can be effectively reduced, the cost is reduced, the manufacturing is easy, and the failure rate is low.

2. According to the utility model, the press-fitting holes are formed in the press plate, the screw holes matched with the press-fitting holes are formed in the support columns, the length of the screw for fixing the press plate can be changed, and the press-fitting tool is matched with rotor iron cores with different thicknesses to insert magnetic steel, so that the universality of the tool is improved.

3. The inner end face of the inserting plate is provided with the bulge for limiting the transverse displacement of the rotor core, so that the displacement of the rotor core is effectively limited when the magnetic steel is inserted.

4. According to the utility model, the magnetic direction mark is arranged on the outer end face of the inserting plate, so that the magnetic steel polarity direction can be verified by using the direction mark information on the tool when the magnetic steel is inserted.

5. According to the utility model, the inserting plate is made of the aluminum alloy material, so that when the magnetic steel is inserted, the suction force between the magnetic steel and the silicon steel sheet can be isolated, the clamping injury of staff during work is prevented, the magnetic steel is prevented from being broken due to sudden suction force, and the operation of the staff can be more easily completed.

Drawings

FIG. 1 is a perspective view of the overall construction assembly of the present invention;

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

FIG. 3 is a schematic view of a base in the structure of the present invention;

FIG. 4 is a schematic view of a support post in the structure of the present invention;

FIG. 5 is a schematic view of the outer end surface of a interposer in the configuration of the present invention;

FIG. 6 is a schematic view of the inner end surface of the interposer of the present invention;

FIG. 7 is a schematic view of a platen in accordance with the present invention;

fig. 8 is a test chart of the bottle cap in the beverage bottle of example 2.

The reference numbers in the figures illustrate: 1. the rotor core comprises a base 11, screw holes 12, fixing and assembling holes 2, supporting columns 21, threaded holes 3, inserting plates 31, central holes 32, inserting grooves 33, limiting grooves 34, protrusions 35, rivet avoiding holes 36, magnetic direction marks 4, pressing plates 41, press-fitting holes 5 and a rotor core.

The specific implementation mode is as follows:

for a better understanding of the objects, structure and function of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.

As shown in fig. 1 to 7, a permanent magnet motor rotor core magnetic steel inserting tool is designed, which comprises a base 1, a secondary stepped shaft-shaped support column 2 is fixed at the center of the base 1, the support column 2 is provided with an insert plate 3 with a central hole 31, one end of the support column 2 with a large diameter is tightly attached to the base 1, one section of the support column 2 with a small diameter penetrates into the central hole 31, the insert plate 3 is made of non-ferromagnetic material, the insert plate 3 is provided with a slot 32 for inserting magnetic steel, a limiting groove 33 for limiting the rotor core 5 is arranged on the inner end surface of the insert plate 3, a pressing plate 4 which is matched with the support column 2 to limit the insert plate 3 to move is arranged outside the insert plate 3, the V-shaped and the I-shaped magnetic steels can be conveniently inserted into the rotor core 5 from the slot 32 through the arrangement of the supporting column 2, the inserting plate 3 and the pressing plate 4, and in the process of inserting the magnetic steel, the rotor core 5 cannot be deformed due to the increase of the number of the inserted magnetic steel.

During the use, after fixing base 1 and support column 2, install base 1 on the workstation, locate support column 2 with rotor core 5 cover, with picture peg 3 and rotor core 5 according to involving the fixed back of angle cooperation, use clamp plate 4 to compress tightly, then can pass through slot 32, insert the magnet steel in rotor core 5. In the above embodiment, 2 examples are listed to achieve the above technical solution:

example 1

The embodiment provides a permanent magnet motor rotor core magnetic steel inserting tool which comprises a base 1, wherein the base 1 is provided with two fixing assembling holes 12, and the two fixing assembling holes 12 are arranged in a mirror image mode and used for fixing the tool on a workbench; a secondary stepped shaft-shaped support column 2 is fixed at the center of the base 1, the base 1 is provided with a screw hole 11 for fixing the support column 2, the support column 2 is provided with a threaded hole 21 matched with the screw hole 11, and the base 1 and the support column 2 are fixed by a simple and mature structure; the supporting column 2 is provided with the inserting plate 3 with the central hole 31, one end of the supporting column 2 with the large diameter is attached to the base 1, one section of the shaft with the small diameter of the supporting column 2 penetrates into the central hole 31, the inserting plate 3 is made of aluminum alloy, when the magnetic steel is inserted, the suction force between the magnetic steel and the silicon steel sheet can be isolated, the clamping injury of workers in work can be prevented, the magnetic steel can be prevented from being broken due to sudden suction force, and the operation of the workers can be completed more easily; the inner end face of the inserting plate 3 is provided with a protrusion 34 for limiting the transverse displacement of the rotor core, so that the rotor core 5 is effectively limited from generating displacement when being inserted with magnetic steel; the inserting plate 3 is provided with a slot 32 for inserting magnetic steel, the inner end face of the inserting plate 3 is provided with a limiting groove 33 for limiting the rotor core 5, the protrusion 34 is a circular boss arranged according to the contour of the central hole 31, and the limiting groove 33 is arranged on the circular-arc boss to further strengthen the limiting capacity of the rotor core 5; the inner end face of the inserting plate 3 is provided with a rivet avoiding hole 35 for avoiding a screw hole on the rotor iron core 5; the pressing plate 4 which is matched with the supporting column 2 to limit the movement of the inserting plate 3 is arranged outside the inserting plate 3, the pressing plate 4 is provided with a press mounting hole 41, the supporting column 2 is provided with a screw hole matched with the press mounting hole 41, the length of a screw rod for fixing the pressing plate 4 can be changed, and the magnetic steel is inserted in the rotor core 5 which is matched with different thicknesses, so that the universality of the tool is improved; through the setting of support column 2, picture peg 3 and clamp plate 4 can be very convenient insert rotor core 5 with "V" type and "one" type magnet steel from slot 32 in, at the in-process of inserting the magnet steel moreover, rotor core 5 can not warp because of the increase of magnet steel male quantity.

Example 2

The embodiment provides a permanent magnet motor rotor core magnetic steel inserting tool which comprises a base 1, wherein the base 1 is provided with

fixing assembly holes

12, and 3 fixing assembly holes 12 are uniformly distributed and used for fixing the tool on a workbench; a secondary stepped shaft-shaped support column 2 is fixed at the center of the base 1, the base 1 is provided with a screw hole 11 for fixing the support column 2, the support column 2 is provided with a threaded hole 21 matched with the screw hole 11, and the base 1 and the support column 2 are fixed by a simple and mature structure; a counter bore is arranged on the outer end face of the screw hole 11 to prevent the head of the screw from protruding and affecting the fixed assembly of the base 1 and the workbench; the supporting column 2 is provided with the inserting plate 3 with the central hole 31, one end of the supporting column 2 with the large diameter is attached to the base 1, one section of the shaft with the small diameter of the supporting column 2 penetrates into the central hole 31, the inserting plate 3 is a plastic electroplating part, when the magnetic steel is inserted, the suction force between the magnetic steel and the silicon steel sheet can be isolated, the clamping injury of workers in work can be prevented, the magnetic steel can be prevented from being broken due to sudden suction force, and the operation of the workers can be completed more easily; the inner end face of the inserting plate 3 is provided with a protrusion 34 for limiting the transverse displacement of the rotor core, so that the rotor core 5 is effectively limited from generating displacement when being inserted with magnetic steel; the inserting plate 3 is provided with a slot 32 for inserting magnetic steel, the inner end face of the inserting plate 3 is provided with a limiting groove 33 for limiting the rotor core 5, the protrusion 34 is a circular boss arranged according to the contour of the central hole 31, and the limiting groove 33 is arranged on the circular-arc boss to further strengthen the limiting capacity of the rotor core 5; two circles of rivet avoidance holes 35 are annularly arrayed on the inner end face of the inserting plate 3 and are used for avoiding screw holes in the rotor iron core 5; the outer end face of the plug board 3 is provided with a magnetic direction mark 36, so that when magnetic steel is inserted, the magnetic steel polarity direction can be verified by using direction mark information on a tool; the pressing plate 4 which is matched with the supporting column 2 to limit the movement of the inserting plate 3 is arranged outside the inserting plate 3, the pressing plate 4 is provided with a press mounting hole 41, the supporting column 2 is provided with a screw hole matched with the press mounting hole 41, the length of a screw rod for fixing the pressing plate 4 can be changed, and the magnetic steel is inserted in the rotor core 5 which is matched with different thicknesses, so that the universality of the tool is improved; through the setting of support column 2, picture peg 3 and clamp plate 4 can be very convenient insert rotor core 5 with "V" type and "one" type magnet steel from slot 32 in, at the in-process of inserting the magnet steel moreover, rotor core 5 can not warp because of the increase of magnet steel male quantity.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a permanent-magnet machine rotor core inserts magnet steel frock, includes base (1), its characterized in that: base (1) center is fixed with support column (2) of second grade step shaft form, support column (2) set picture peg (3) of taking centre bore (31), the one end that support column (2) diameter is big pastes tight base (1), a section axle that support column (2) diameter is little penetrates centre bore (31), picture peg (3) are non-ferromagnetic material, picture peg (3) are equipped with slot (32) that are used for inserting the magnet steel, picture peg (3) interior terminal surface is equipped with spacing groove (33) that are used for spacing rotor core, picture peg (3) outside is equipped with clamp plate (4) with support column (2) cooperation spacing picture peg (3) activity.

2. The permanent magnet motor rotor core magnetic steel inserting tool according to claim 1, wherein the base (1) is provided with a screw hole (11) for fixing the supporting column (2), and the supporting column (2) is provided with a threaded hole (21) matched with the screw hole (11).

3. The permanent magnet motor rotor core magnetic steel inserting tool according to claim 2, wherein a counter bore is arranged on the outer end face of the screw hole (11).

4. The permanent magnet motor rotor core magnet steel inserting tool according to claim 1, wherein the base (1) is provided with a fixing assembly hole (12).

5. The permanent magnet motor rotor core magnet steel inserting tool according to claim 1, wherein the pressing plate (4) is provided with a press-fitting hole (41), and the supporting column (2) is provided with a screw hole matched with the press-fitting hole (41).

6. The permanent magnet motor rotor core magnet steel inserting tool according to claim 1, wherein a protrusion (34) used for limiting the transverse displacement of the rotor core is arranged on the inner end face of the inserting plate (3).

7. The tool for inserting the magnetic steel into the rotor core of the permanent magnet motor according to claim 6, wherein the protrusion (34) is an annular boss arranged according to the contour of the central hole (31), and a limit groove (33) is formed in the arc-shaped boss.

8. The permanent magnet motor rotor core magnetic steel inserting tool according to claim 1, wherein a rivet avoiding hole (35) is formed in an inner end face of the inserting plate (3).

9. The permanent magnet motor rotor core magnetic steel inserting tool according to claim 1, wherein the outer end face of the inserting plate (3) is provided with a magnetic direction mark (36).

10. The permanent magnet motor rotor core magnetic steel inserting tool according to claim 1, wherein the inserting plate (3) is made of an aluminum alloy material.