CN212012298U

CN212012298U - Rotor steel bushing structure

Info

Publication number: CN212012298U
Application number: CN202021041627.9U
Authority: CN
Inventors: 陈国谋; 朱登平
Original assignee: Kunshan Lingdu Motor Co ltd
Current assignee: Kunshan Lingdu Motor Co ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2020-11-24
Anticipated expiration: 2030-06-09

Abstract

The utility model relates to a rotor steel bushing structure, including the mould body that rises, the mould body overcoat that rises is equipped with the steel band, and the pot head of steel band is equipped with the cover that rises, and the pot head of steel band is equipped with the packing ring. Therefore, during processing, the force of a press can be pressed on the expansion die body, and the expansion die body and the expansion sleeve are matched in a ratio of 1:10, so that the stretching length of the steel strip can be better controlled. Through the existence of the stress release groove, the annular sleeve body can be divided into 6 pieces, so that the deformation of a cutting die caused by overlarge die can be prevented, and the expanded steel belt is prevented from being in a horn mouth shape. During actual treatment, the washer can be finely adjusted, so that the stretching size of the steel belt can be adjusted, and the rotor and the steel sleeve can be matched with each other. The whole structure is simple, and the manufacture and the implementation are easy.

Description

Rotor steel bushing structure

Technical Field

The utility model relates to a steel bushing structure especially relates to a rotor steel bushing structure.

Background

A rotor steel sleeve of a low-power permanent magnet motor is mainly manufactured by cutting a seamless steel pipe to a required size and then pressing the seamless steel pipe outside magnetic steel of a rotor by a temperature difference method or a press, but the low-power permanent magnet motor has a plurality of defects.

In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a rotor steel sleeve structure, so that the rotor steel sleeve structure has industrial value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a rotor steel bushing structure.

The utility model discloses a rotor steel bushing structure, including the mould body that rises, wherein: the expansion die is characterized in that a steel belt is sleeved outside the expansion die body, an expansion sleeve is sleeved at the upper end of the steel belt, and a gasket is sleeved at the lower end of the steel belt.

Further, in the rotor steel sleeve structure, a plurality of auxiliary positioning holes are distributed at the upper end of the expansion die body.

Furthermore, in the rotor steel bushing structure, the expansion sleeve includes an annular sleeve body, and a plurality of stress release grooves are equidistantly distributed on the annular sleeve body.

Further, in the rotor steel sleeve structure, the number of the stress relief grooves is 6, the depth of each stress relief groove is 0.2 to 0.8 cm, the width of each stress relief groove is 0.1 to 0.3 cm, and the thickness of the annular sleeve body is 0.4 to 1.3 cm.

Furthermore, in the rotor steel sleeve structure, the depth of the stress relief groove is 0.4 cm, the width of the stress relief groove is 0.2 cm, and the thickness of the annular sleeve body is 0.6 cm.

Still further, in the above rotor steel bushing structure, the washer includes a ring body, an extending edge extends outward from the bottom of the ring body, a plurality of auxiliary grooves are distributed on the ring body, and the width of each auxiliary groove is 0.1 to 0.3 cm.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

1. during processing, the force of a press can be pressed on the expansion die body, and the expansion die body and the expansion sleeve are matched in a ratio of 1:10, so that the stretching length of the steel strip can be better controlled.

2. Through the existence of the stress release groove, the annular sleeve body can be divided into 6 pieces, so that the deformation of a cutting die caused by overlarge die can be prevented, and the expanded steel belt is prevented from being in a horn mouth shape.

3. During actual treatment, the washer can be finely adjusted, so that the stretching size of the steel belt can be adjusted, and the rotor and the steel sleeve can be matched with each other.

4. The whole structure is simple, and the manufacture and the implementation are easy.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a structural schematic diagram of a rotor steel sleeve structure.

The meanings of the reference symbols in the drawings are as follows.

1 expansion die body 2 steel belt

3 expansion sleeve 4 washer

5 auxiliary positioning hole 6 stress relief groove

7 extending edge

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The rotor steel bushing structure shown in fig. 1 comprises an expansion die body 1, and is characterized in that: in order to assist the limiting of the expansion die body 1, a steel belt 2 is sleeved outside the expansion die body 1. Simultaneously, in order to obtain the tensile force of both ends preferred from top to bottom, the utility model discloses the pot head is equipped with the cover 3 that rises on steel band 2, and the pot head is equipped with packing ring 4 under steel band 2.

In view of a preferred embodiment of the present invention, a plurality of auxiliary positioning holes 5 are distributed at the upper end of the expansion die body 1. Like this, during processing, can realize pushing down smoothly through the guide of auxiliary positioning hole 5 when the press pushes down, the application of force skew can not appear, guarantees to process normally. And simultaneously, the utility model discloses an expansion sleeve 3 including cyclic annular cover body, the equidistance distributes on the cyclic annular cover body has a plurality of stress relief groove 6.

Further see, in order to satisfy the normal tensioning needs during daily processing, the utility model discloses a stress relief groove 6 be 6, and stress relief groove 6's degree of depth is 0.2 to 0.8 centimetres, and stress relief groove 6's width is 0.1 to 0.3 centimetres, and the thickness of cyclic annular cover body is 0.4 to 1.3 centimetres. After a plurality of comparison tests, the depth of the adopted stress relief groove 6 is 0.4 cm, the width of the stress relief groove 6 is 0.2 cm, and the thickness of the annular sleeve body is 0.6 cm.

Further see again, the utility model discloses a packing ring 4 including circle body, the bottom of circle body outwards extends has extension limit 7, and it has a plurality of auxiliary grooves to distribute on the circle body, and the width in auxiliary groove is 0.1 to 0.3 centimetres. Therefore, the contact area of the bottom of the expansion die body 1 can be properly enlarged by relying on the existence of the extension edge 7, and the effective matching installation of the follow-up rotor is met.

Through foretell expression of characters and combination of the attached drawing can be seen, adopt the utility model discloses afterwards, possess following advantage:

Furthermore, the indication directions or positional relationships described in the present invention are directions or positional relationships based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated device or structure must have a specific direction or operate in a specific directional configuration, and therefore, should not be construed as limiting the present invention.

The terms "primary" and "secondary" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "primary" or "secondary" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Also, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "disposed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other or mutually interacted. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. And it may be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or component so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. Rotor steel bushing structure, including mould body (1) that rises, its characterized in that: the expansion die is characterized in that a steel belt (2) is sleeved outside the expansion die body (1), an expansion sleeve (3) is sleeved on the upper end of the steel belt (2), and a gasket (4) is sleeved on the lower end of the steel belt (2).

2. The rotor steel bushing structure according to claim 1, wherein: a plurality of auxiliary positioning holes (5) are distributed at the upper end of the expansion die body (1).

3. The rotor steel bushing structure according to claim 1, wherein: the expansion sleeve (3) comprises an annular sleeve body, and a plurality of stress release grooves (6) are distributed on the annular sleeve body at equal intervals.

4. The rotor steel bushing structure according to claim 3, wherein: the number of the stress release grooves (6) is 6, the depth of each stress release groove (6) is 0.2-0.8 cm, the width of each stress release groove (6) is 0.1-0.3 cm, and the thickness of the annular sleeve body is 0.4-1.3 cm.

5. The rotor steel bushing structure according to claim 4, wherein: the depth of the stress release groove (6) is 0.4 cm, the width of the stress release groove (6) is 0.2 cm, and the thickness of the annular sleeve body is 0.6 cm.

6. The rotor steel bushing structure according to claim 1, wherein: the gasket (4) is including circle body, the bottom of circle body outwards extends has extension limit (7), it has a plurality of auxiliary grooves to distribute on the circle body, the width in auxiliary groove is 0.1 to 0.3 centimetre.