CN217216153U

CN217216153U - Stator insulation paper mouth expanding mechanism

Info

Publication number: CN217216153U
Application number: CN202220569308.8U
Authority: CN
Inventors: 高小兵; 陈鹏宇
Original assignee: Chengdu Huachuan Electric Parts Co Ltd
Current assignee: Chengdu Huachuan Electric Parts Co Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-08-16
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses a stator insulation paper oral area expanding mechanism, including drive assembly, still include: the first expansion component comprises a first connecting part and a first expansion part for expanding and positioning the opening part of the insulating paper for the first time, and the first expansion part is arranged at one end of the first connecting part; the second expansion component is connected with the driving assembly and comprises a second connecting part and a second expansion part which penetrates through the first expansion component and then expands the insulation paper in the positioning state again, and the second expansion part is arranged at one end of the second connecting part; and one end of the connecting assembly is connected with the first expansion part, and the other end of the connecting assembly is in sliding fit with the driving assembly. The utility model discloses can expand the preferred state with insulating paper mouth portion.

Description

Stator insulation paper mouth expanding mechanism

Technical Field

The utility model relates to a motor stator technical field, concretely relates to stator insulation paper mouth expanding mechanism.

Background

At present, the expanding part shown in fig. 3 is generally adopted to expand the mouth of the insulation paper a of the stator of the high-efficiency generator or the new energy drive motor, and the insulation paper a is pressed by the helical teeth on the shaping block to expand the mouth of the insulation paper a in each core slot (the insulation paper a changes from the state shown in fig. 1 to the state shown in fig. 2). However, there is a problem in this link:

1. when the helical teeth with the first angle a (sharp) as shown in fig. 4 are adopted, the guiding is easy, the insulating paper cannot retreat, but the insulating paper is stressed less and deformed insufficiently, so that the rebound is large;

2. when the inclined teeth with the second angle b (blunt) in the other expansion part shown in fig. 5 and 6 are adopted for shaping, the expansion effect of the opening part of the insulation paper A is good, but the insulation paper A retreats and cannot be shaped and expanded;

3. because of the difference of the insulating paper sheets, the ideal state cannot be achieved even by gradually adjusting the angle, and automatic mass production cannot be realized.

Disclosure of Invention

The utility model provides a stator insulated paper oral area expanding mechanism, the utility model discloses can expand the better state with insulated paper oral area.

The technical scheme for solving the problems is as follows:

stator insulation paper oral area expanding mechanism, including drive assembly, still include:

the first expansion component comprises a first connecting part and a first expansion part for expanding and positioning the opening part of the insulating paper for the first time, and the first expansion part is arranged at one end of the first connecting part;

the second expansion component is connected with the driving assembly and comprises a second connecting part and a second expansion part which penetrates through the first expansion component and then expands the insulation paper in the positioning state again, and the second expansion part is arranged at one end of the second connecting part;

and one end of the connecting assembly is connected with the first expansion part, and the other end of the connecting assembly is in sliding fit with the driving assembly.

The stator insulating paper opening expanding method comprises the following steps:

s1, the driving assembly drives the first expansion component and the second expansion component to move in the same direction of the insulation paper, so that the first expansion part expands the insulation paper and presses the insulation paper upwards at the axial end of the stator core;

and S2, the driving assembly applies axial force to the second expansion component to enable the second expansion component to move relative to the first expansion component, so that the second expansion part passes through the first expansion component and then re-expands the insulation paper in the positioning state.

Adopt the utility model discloses an expanding mechanism, at first expanding portion expand the back to insulated paper with insulated paper pressure in stator core's axial end upwards, when insulated paper when being expanded once more by second expanding unit, because insulated paper is fixed a position by first expanding unit, insulated paper can not axial displacement. Therefore, the first expansion part of the utility model provides a not only has the effect to the insulating paper expansion, still has the effect that makes the insulating paper can not remove after being expanded for the first time. The insulating paper cannot be rebounded because the insulating paper cannot move axially during the second expansion, and the opening part of the insulating paper is expanded to a better state under the condition that sufficient expansion force is obtained during the second expansion.

The utility model discloses specially adapted high-efficient generator or new forms of energy driving motor's stator insulated paper mouth portion expansion. The utility model discloses carry out twice method of expanding to the oral area of insulating paper, compare with prior art, make the oral area of insulating paper obtain the shape that needs, to expanding mechanism, accomplish twice expansion through reasonable integration, have characteristics such as simple structure, expansion effect are good.

Drawings

FIG. 1 is a schematic view of the mouth of the insulation paper on the stator before it has been expanded;

FIG. 2 is a schematic view of the mouth of the insulation paper on the stator after it has been expanded;

FIG. 3 is a schematic view of a first prior art expansion member;

FIG. 4 is an enlarged view of section C of FIG. 3;

FIG. 5 is a schematic view of a second prior art expansion member;

FIG. 6 is an enlarged view of section D of FIG. 5;

fig. 7 is a schematic view of the stator insulating paper mouth expanding mechanism of the present invention;

FIG. 8 is a perspective view of the first expansion member and the second expansion member mated;

FIG. 9 is an enlarged view of section I of FIG. 7;

reference numbers in the drawings:

the stator comprises insulation paper A, a stator core B, a first expansion component 1, a first connecting part 1a, a first expansion part 1B, a second expansion component 2, a second connecting part 2a, a second expansion part 2B, a driver 3, a guide part 4, a first mounting part 5, a second mounting part 6, a mounting plate 7, a guide shaft 8, a limiting component 9 and an elastic component 10.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, 2, 7 to 9, the stator insulating paper mouth expanding mechanism of the present invention includes a driving assembly, a first expanding member 1, a second expanding member 2, and a connecting assembly, and the following describes each part and the relationship between each part:

the first expansion member 1 includes a first connection portion 1a and a first expansion portion 1b for first expanding and positioning the mouth portion of the insulation paper a, and the first expansion portion 1b is provided at one end of the first connection portion 1 a. Wherein, the positioning of the insulating paper A is as follows: the first expansion part 1B expands the insulation paper a and presses the insulation paper a against the axial end of the stator core B upward, so that when the insulation paper a is expanded again by the second expansion member 2, the insulation paper a is pressed and positioned by the expansion member 1, and therefore the insulation paper a cannot move in the axial direction and cannot rebound. Therefore, the utility model provides a first expansion part 1 not only has the effect to the insulating paper expansion, still has the effect that makes insulating paper A can not remove and kick-back after being expanded for the first time.

The shape of the first connection portion 1a is determined according to the shape of the stator core, for example, if the stator core is cylindrical, the first connection portion 1a may be cylindrical or cylindrical, and if the stator core is square, the first connection portion 1a may be square. In the present embodiment, the first connection portion 1a is preferably cylindrical. The first expanding portion 1b is composed of a plurality of first press teeth in a tooth shape, which are continuously arranged along the same circumference on the axial end face of the first connecting portion 1a, and the cross section of the first press teeth preferably takes a triangular shape.

The second expansion member 2 is connected to the driving unit, the second expansion member 2 includes a second connection portion 2a and a second expansion portion 2b which passes through the first expansion member 1 and then expands the insulation paper a in the positioned state again, and the second expansion portion 2b is provided at one end of the second connection portion 2 a.

The shape of the second connection portion 2a is determined according to the shape of the stator core, for example, if the stator core is cylindrical, the second connection portion 2a may be cylindrical or cylindrical, and if the stator core is square, the second connection portion 2a may be square. In the present embodiment, the second connecting portion 2a is preferably cylindrical. The second expansion portion 2b is composed of a plurality of second teeth-shaped teeth that are arranged continuously along the same circumference on the axial end face of the second connection portion 2a, and the second teeth-shaped teeth preferably have a trapezoidal cross section.

Regarding the positional relationship between the first expansion member 1 and the second expansion member 2, in this embodiment, the first expansion member 1 surrounds the second expansion member 2, the second expansion portion 2b is located inside the first expansion member 1 before the second expansion member 2 expands the insulating paper a, and when the first expansion member 1 expands the insulating paper a for the first time, since the second expansion portion 2b is located inside the first expansion member 1, the second expansion portion 2b is prevented from expanding the insulating paper a at the time of the first expansion, that is, it is ensured that the insulating paper a can be expanded only by the first expansion member 1 at the time of the first expansion.

As a modification of the above positional relationship between the first expansion member 1 and the second expansion member 2, the first expansion member 1 may be located entirely outside the second expansion member 2, the first expansion member 1 may be located entirely above the second expansion member 2, and the second expansion member 2 may enter and pass through the first expansion member 1 when the second expansion member 2 is required to expand the insulation paper a.

One end of the connecting assembly is connected with the first expansion part 1, and the other end of the connecting assembly is in sliding fit with the driving assembly. In this embodiment, through coupling assembling and drive assembly, to the assembly effect that first extension part 1 and second extension part 2 formed, when needs expand insulating paper a, can make first extension part 1 and second extension part 2 move to insulating paper a simultaneously to when expanding, can make first extension part 1 and second extension part 2 accomplish the expansion of insulating paper through drive assembly. This arrangement has the advantage that a single drive assembly can be used to move the first and second expansion elements 1, 2, making the overall expansion mechanism compact and simple.

The drive assembly comprises a driver 3 and a mounting assembly, the driver 3 is fixed with the mounting assembly, the driver 3 is a linear driver, and the linear driver can adopt a cylinder, a hydraulic cylinder, an electric screw rod and the like. The installation component is fixed with the second expansion part 2, a guide part 4 is arranged on the installation component, and the guide part 4 is in sliding fit with the connection component.

The installation component comprises an installation seat, the installation seat comprises a first installation part 5 and a second installation part 6, the first installation part 5 is connected with the driver 3, the second installation part 6 extends along the radial direction of the first installation part 5 and is fixed with the first installation part 5, if the first installation part 5 is matched with the guide part 4, the volume of the first installation part 5 is larger than that of the embodiment, therefore, after the second installation part 6 is arranged in the embodiment, the reduction of the volume of the first installation part 5 is facilitated, a through hole is formed in the second installation part 6, the guide part 4 preferentially adopts a guide sleeve, and the guide sleeve is matched with the through hole in the second installation part 6.

The mounting assembly further comprises a mounting plate 7, the mounting plate 7 is fixed with the first mounting portion 5, and the mounting plate 7 is further fixed with the second expansion member 2. The mounting plate 7 may be adapted for mounting of different sizes of second expansion elements 2, for example, by providing a plurality of sets of mounting holes on the mounting plate 7, the positions of the sets of mounting holes being distributed on different circles.

The connecting assembly comprises a guide shaft 8 and a limiting part 9, one end of the guide shaft 8 is fixed with the first connecting portion 1a, the other end of the guide shaft 8 penetrates through the driving assembly to be in sliding fit with the driving assembly, and the limiting part 9 and the other end of the guide shaft 8 are fixed to limit the moving position of one end of the driving assembly. Wherein the guide part 4 is in sliding fit with the guide shaft 8. This structure allows the guide portion 4 of the driving unit to be positioned between the stopper member 9 and the first coupling portion 1a, i.e., the guide portion 4 can only slide between the stopper member 9 and the first coupling portion 1a when sliding along the guide shaft 8, and further, the driving unit is integrally assembled with the first expanding member 1 and the second expanding member 2 by the coupling unit.

In the present embodiment, the position of the stopper member 9 is adjusted as necessary by screwing the stopper member 9 to the guide shaft 8, and this screwing relationship can adjust the position of the guide portion 4, the first attachment portion 5, the second attachment portion 6, and the attachment plate 7 in order to adjust the initial position of the second expansion portion 2b, and for example, the distance between the lower end of the second expansion portion 2b and the lower end of the first expansion member 1 can be adjusted by adjusting the second expansion portion 2b to be positioned outside or inside the first expansion member 1 before the second expansion member 2 is not expanded, or by adjusting the initial position of the second expansion portion 2b to be positioned inside the first expansion member 1.

The present embodiment further includes an elastic member 10 for transmitting the pressure generated by the downward pressing of the driving assembly to the first expansion member 1, wherein one end of the elastic member 10 is engaged with the first expansion member 1, and the other end of the elastic member 10 is engaged with the driving assembly, and in the present embodiment, the elastic member 10 preferably adopts a spring. The elastic member 10 exerts a pre-pressure on the insulation paper a after the first expansion.

After the first expansion part 1 expands the insulation paper A, at this time, the first expansion part 1 is limited by the axial end face of the stator core B, the first expansion part 1 cannot move axially, the driver 3 drives the second expansion part 2 to move towards the insulation paper through the mounting assembly, the power generated by the driver 3 is transmitted to the guide part 4 and the second expansion part 2 through the mounting assembly respectively, the guide part 4 and the second expansion part 2 generate relative motion (the first expansion part 1 is in a static state) relative to the first expansion part 1, the guide part 4 compresses the elastic part 10, the elastic part 10 transmits the force to the first expansion part 1 when being pressed, so that the positioning acting force of the first expansion part 1 on the insulation paper A is increased, and the insulation paper A cannot move when being expanded by the second expansion part 2 is further ensured.

A stator insulating paper opening expanding method comprises the following steps:

s1, the driving assembly drives the first expansion component 1 and the second expansion component 2 to move towards the direction of the insulation paper together, at the moment, the first expansion component 1 and the second expansion component 2 do not move relatively, so that the first expansion part 1B expands the insulation paper A and presses the insulation paper A upwards at the axial end of the stator core B;

s2, the driving assembly applies an axial force to the second expansion member 2 to move the second expansion member 2 relative to the first expansion member 1, so that the second expansion portion 2b passes through the first expansion member 1 and then re-expands the positioned insulation paper.

In the re-expansion process, the power generated by the driver 3 is transmitted to the guide part 4 and the second expansion part 2 through the mounting assembly, the guide part 4 compresses the elastic part 10, and the elastic part 10 transmits the force to the first expansion part 1 when being compressed, so that the positioning acting force of the first expansion part 1 on the insulation paper A is increased, and the insulation paper A is further ensured not to move when being expanded by the second expansion part 2.

Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, not to limit it, and not to limit the protection scope of the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. Stator insulation paper oral area expanding mechanism, including drive assembly, its characterized in that still includes:

the first expansion component (1), the first expansion component (1) includes the first connecting portion (1 a) and the first expansion portion (1 b) that the mouth of the insulating paper (A) expands and positions for the first time, the first expansion portion (1 b) is set up in one end of the first connecting portion (1 a);

the second expansion component (2), the second expansion component (2) is connected with the driving assembly, the second expansion component (2) comprises a second connecting part (2 a) and a second expansion part (2 b) which passes through the first expansion component (1) and then expands the insulation paper (A) in the positioning state again, and the second expansion part (2 b) is arranged at one end of the second connecting part (2 a);

one end of the connecting assembly is connected with the first expansion part (1), and the other end of the connecting assembly is in sliding fit with the driving assembly.

2. The stator insulation paper mouth expanding mechanism according to claim 1, wherein the first expanding member (1) is surrounded by the second expanding member (2), and the second expanding member (2) is located inside the first expanding member (1) before the insulation paper is not expanded by the second expanding member (2).

3. The stator insulating paper mouth expanding mechanism according to claim 1, wherein the driving assembly comprises:

a driver (3);

the installation component, driver (3) are fixed with the installation component, and the installation component is fixed with second expansion part (2), is equipped with guide part (4) on the installation component, and this guide part (4) and coupling assembling sliding fit.

4. The stator insulation paper mouth portion expanding mechanism according to claim 1, wherein the mounting assembly comprises a mounting seat, and the mounting seat comprises:

a first mounting part (5), wherein the first mounting part (5) is connected with the driver (3);

the second installation part (6) extends along the radial direction of the first installation part (5) and is fixed with the first installation part (5), a through hole is formed in the second installation part (6), the guide part (4) is a guide sleeve, and the guide sleeve is matched with the through hole in the second installation part (6).

5. A stator insulation paper mouth part expanding mechanism according to claim 4, characterized in that the mounting assembly further comprises a mounting plate (7), the mounting plate (7) is fixed with the first mounting part (5), and the mounting plate (7) is further fixed with the second expanding component (2).

6. The stator insulation paper mouth expanding mechanism according to claim 1, wherein the connecting assembly comprises:

one end of the guide shaft (8) is fixed with the first connecting part (1 a), and the other end of the guide shaft (8) penetrates through the driving assembly and is in sliding fit with the driving assembly;

and the limiting component (9), the limiting component (9) is fixed with the other end of the guide shaft (8) to limit the moving position of one end of the driving component.

7. The stator insulation paper mouth part expanding mechanism according to claim 6, wherein the limiting part (9) is in threaded connection with the guide shaft (8).

8. The stator insulation paper mouth part expanding mechanism according to any one of claims 1 to 7, further comprising an elastic member (10) for transmitting the pressure when the driving assembly is pressed down to the first expanding member (1), wherein one end of the elastic member (10) is engaged with the first expanding member (1), and the other end of the elastic member (10) is engaged with the driving assembly.

9. The stator insulation paper mouth part expansion mechanism according to any one of the claims 1 to 7, wherein the first expansion part (1 b) is composed of a plurality of first pressing teeth in tooth shape, the cross section of the first pressing teeth is triangular;

the second expansion part (2 b) is composed of a plurality of second pressing teeth in a tooth shape, and the cross section of each second pressing tooth is trapezoidal.