CN215072055U

CN215072055U - Roller type hot jacket positioning tool and hot jacket assembly

Info

Publication number: CN215072055U
Application number: CN202120630574.2U
Authority: CN
Inventors: 王定军; 李骞
Original assignee: Siemens Motor China Co ltd
Current assignee: Siemens Electromechanical Technology Jiangsu Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-12-07
Anticipated expiration: 2031-03-29

Abstract

The utility model provides a roller type hot jacket location frock, include: the stator core positioning column is cylindrical; the positioning table is arranged at one end of the stator core positioning column and is disc-shaped, and the diameter of the circular section of the positioning table is larger than that of the circular section of the stator core positioning column; and a plurality of ball springs arranged at the outer edge of the positioning table so that the balls of the ball springs can be ejected outwards from the surface of the outer edge of the positioning table. Furthermore, the utility model also provides a hot jacket subassembly. The roller type thermal sleeve positioning tool can improve the production efficiency.

Description

Roller type hot jacket positioning tool and hot jacket assembly

Technical Field

The utility model relates to an industrial field especially relates to a roller type heat jacket location frock and heat jacket subassembly.

Background

The stator winding hot jacket process in the prior art mainly comprises the following steps: put into location child frock with stator winding, adjusted induction machine heat time, start induction heater, after the heating is automatic, wear high temperature resistant gloves, will heat the good casing and take off, confirm casing position direction back, hand casing control straightness that hangs down treats cooling with casing hole and stator core external diameter cover press fit. However, the existing process and equipment have at least the following problems: firstly, the verticality of the casing is controlled by hand visual observation, and the rejection rate is easy to generate; secondly, the high-temperature shell is in contact with the gloves for a long time and is easy to damage, skin scald can be generated, and safety risk exists; and the time spent on manually adjusting the verticality of the casing is long, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a roller type thermal jacket location frock of convenient location. The roller type hot sleeve positioning tool can improve the production efficiency, reduce the verticality time of a hand control casing, reduce the scalding time of high-temperature gloves and reduce the labor intensity of workers. Specifically, the tool adopts the floating steel balls with the springs to automatically adjust the coaxiality of the shell and the stator winding, so that the rapid hot jacket completion is realized. In addition, workers do not need to manually control and adjust the verticality of the machine shell, the utilization rate of equipment can be improved, the productivity is improved, the coaxiality of the machine shell and a stator winding is high, and the scrapping and repairing cost of the machine base during hot sleeve is reduced.

According to the utility model discloses an aspect provides a roller type thermal jacket location frock, include:

the stator core positioning column is cylindrical;

the positioning table is arranged at one end of the stator core positioning column, the positioning table is in a disc shape, and the diameter of the circular section of the positioning table is larger than that of the circular section of the stator core positioning column;

a plurality of ball springs disposed at an outer edge of the positioning table such that balls of the ball springs can be ejected outward from a surface of the outer edge of the positioning table.

According to an embodiment of the present invention, in the above roller type thermal sleeve positioning tool, the thermal sleeve positioning tool further comprises a handle installed on the top surface of the positioning table.

According to the utility model discloses an embodiment, in foretell roller type shrink fit location frock, be provided with at least one recess on the surface of stator core reference column, the recess along the direction of height of stator core reference column extends, just the recess extends at least to the stator core reference column with set up the other end that the one end of location platform is relative.

According to the utility model discloses an embodiment, in foretell roller type thermal jacket location frock, the locating platform with be provided with the rubber packing ring on the bottom surface opposite to the top surface.

According to the utility model discloses an embodiment, in foretell roller type thermal jacket location frock, a plurality of ball spring arrange with central symmetry's mode in the outer fringe of location platform.

According to the utility model discloses an embodiment, in foretell roller type thermal jacket location frock, the ball spring further includes:

a cavity;

the spring is arranged in the cavity, and one end of the spring is abutted against the inner wall of the cavity;

the ball bin, one side in ball bin has the opening just be provided with the ball in the ball bin, the opening allows partly outwards outstanding of ball, wherein the other end butt of spring the ball bin.

According to another aspect of the present invention, there is provided a shrink sleeve assembly, comprising: the machine shell, the stator winding, the base and the roller type thermal sleeve positioning tool discussed above,

the stator winding is fixed on the base;

the outer diameter of the stator core positioning column is smaller than the inner diameter of the hollow part of the stator winding so as to allow the stator core positioning column to be inserted into the stator winding.

According to the utility model discloses an embodiment, in foretell heat jacket subassembly, the internal diameter of casing after the thermal expansion processing is greater than the external diameter of the outer fringe of location platform, so that the casing after the thermal expansion processing can be in the location guide of a plurality of ball springs is lower the cover is in outside the stator winding.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 is an exploded view of a roller type thermal sleeve positioning tool according to an embodiment of the present invention.

FIG. 2 is a schematic view of one embodiment of a ball spring.

Description of reference numerals:

100 casing

200 stator winding

300 base

400 roller type hot jacket positioning tool

401 stator core positioning column

402 positioning table

403 ball spring

404 handle

405 groove

406 rubber gasket

4031 bead

4032 Cavity

4033 spring

4034 ball cabin

Detailed Description

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.

For solving the aforesaid not enough of prior art, the utility model discloses on present heat jacket technology basis, establish one set of automatic positioning device frock again.

The roller-type thermal sleeve positioning tool and thermal sleeve assembly of the present invention are discussed in more detail below in conjunction with fig. 1 and 2.

Referring first to fig. 1, one embodiment of a thermal jacket assembly comprises: casing 100, stator winding 200, base 300 and roller type thermal sleeve positioning tool 400.

Wherein, roller type thermal jacket location frock 400 further includes: stator core positioning posts 401, a positioning table 402, and a plurality of ball springs 403.

The stator core positioning post 401 is cylindrical. Because the end of the stator winding 200 is usually made of enameled copper wire, in order to avoid the risk of collision between the roller type shrink fit positioning tool 400 and the enameled copper wire when the inner hole of the stator winding 200 is placed, the positioning column 401 of the stator core is preferably made of aluminum alloy.

On the other hand, the inner hole of the stator winding 200 is used as a positioning reference, the tolerance of the inner hole of the stator winding 200 is (+0.074,0), the arrangement and installation are convenient and convenient, the coaxiality requirement is met, the thickness of the dip coating film of the iron core is eliminated, the diameter tolerance of the positioning column 401 of the stator iron core is preferably (-0.05, -0.1), and the roughness requirement is preferably 0.08 μm; the stator core positioning column 401 is used for guiding and centering in the placing and mounting process, so the matching depth of the stator core positioning column 401 and the stator winding 200 is preferably 2/3 height of the stator winding, and the contact area is reduced.

Preferably, at least one groove 405 may be disposed on an outer surface of the stator core positioning column 401. The grooves 405 extend along the height direction of the stator core positioning posts 401, and the grooves 405 extend at least to the other end of the stator core positioning posts 401 opposite to the end where the positioning table 402 is disposed. These grooves 405 reduce friction and avoid wear on the device when inserting the stator core positioning posts 401 into the stator windings 200.

The positioning table 402 is disposed at one end of the stator core positioning column 401. The positioning table 402 is disc-shaped, and the diameter of the circular section of the positioning table 402 is larger than that of the stator core positioning column 401.

A plurality of ball springs 403 are arranged at the outer edge of the positioning table 402 so that the balls 4031 of the ball springs 403 can be ejected outward from the surface of the outer edge of the positioning table 402. According to one embodiment, a plurality of ball springs 403 are arranged in a centrosymmetric manner at the outer edge of the positioning table 402.

In the embodiment shown in fig. 1, the roller-type thermal jacket positioning tool 400 further comprises a handle 404. The handle 404 is mounted to the top surface of the positioning table 402.

In addition, because the tip of stator winding 200 is frock 400 contact location benchmark and is the enameled copper wire material, the tip of frock 400 and the tip of stator winding 200 can produce the risk of colliding with, consequently can further set up a rubber packing 406 on the bottom surface of location platform 402 relative with this top surface to reduce the risk of colliding with.

After the casing 100 is heated, the diameter of the inner hole is increased, the tolerance value of the expansion coefficient is (D0.000024 × 256 ℃), so that the ball spring 403 is selected for rolling guidance, and a plurality of ball springs 403 are selected and installed on an upper positioning table of the tool and fixed by threads. Turning to fig. 2, the ball spring 403 may further include: cavity 4032, spring 4033 and ball bin 4034. The spring 4033 is disposed in the cavity 4032, and one end of the spring 4033 abuts against an inner wall of the cavity, and the other end of the spring 4033 abuts against the ball bin 4034. One side of the ball bin 4034 has an opening and the ball 4031 is provided with the aforementioned ball 4031 therein. This opening allows a portion of bead 4031 to protrude outward, as shown in FIG. 2.

Returning to fig. 1, the stator winding 200 is fixed to a base 300. The outer diameter of the stator core positioning column 401 is smaller than the inner diameter of the hollow portion of the stator winding 200 to allow the stator core positioning column 401 to be inserted into the stator winding 200.

In this way, the inner diameter of the casing 100 after the thermal expansion process is larger than the outer diameter of the outer edge of the positioning table 402, so that the casing 100 after the thermal expansion process can be sleeved outside the stator winding 200 under the guiding of the positioning of the plurality of ball springs 403.

Based on the embodiment shown in fig. 1 and 2, the shrink-fit process performed by the present invention comprises the following steps:

step 1: placing stator winding 200 into base 300;

step 2: placing the roller type thermal sleeve positioning tool 400 into the stator winding 200;

and step 3: wearing the high-temperature-resistant gloves, and passing the induction-heated casing 100 through the roller type hot jacket positioning tool 400 for hot jacket;

and 4, step 4: taking out the roller type thermal sleeve positioning tool 400;

and 5: and placing the high-temperature-resistant mark to be cooled.

To sum up, the utility model discloses a roller type thermal jacket location frock's simple structure adopts the axiality of taking spring unsteady steel ball automatically regulated casing and stator winding, realizes quick thermal jacket and accomplishes to can reduce hand control casing hang down straightness time, reduce high temperature gloves scald time, reduce workman intensity of labour, improve production efficiency.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. The utility model provides a roller type heat jacket location frock (400), its characterized in that includes:

the stator core positioning column (401), the stator core positioning column (401) is cylindrical;

the positioning table (402) is arranged at one end of the stator core positioning column (401), the positioning table (402) is disc-shaped, and the diameter of the circular section of the positioning table (402) is larger than that of the circular section of the stator core positioning column (401);

a plurality of ball springs (403) disposed at an outer edge of the positioning stage (402) to enable balls (4031) of the ball springs (403) to be ejected outward from a surface of the outer edge of the positioning stage (402).

2. The roller-type hot jacket positioning tooling (400) of claim 1, further comprising a handle (404) mounted to a top surface of the positioning table (402).

3. The roller type hot jacket positioning tool (400) as claimed in claim 1, wherein at least one groove (405) is formed in an outer surface of the stator core positioning column (401), the groove (405) extends along a height direction of the stator core positioning column (401), and the groove (405) extends at least to the other end of the stator core positioning column (401) opposite to the end where the positioning table (402) is disposed.

4. The roller-type hot jacket positioning tooling (400) of claim 2, wherein a rubber gasket (406) is disposed on a bottom surface of the positioning table (402) opposite the top surface.

5. The roller type hot jacket positioning tooling (400) according to claim 1, wherein the plurality of ball springs (403) are arranged at the outer edge of the positioning table (402) in a centrosymmetric manner.

6. The roller-type shrink fit positioning tool of claim 1, wherein the ball spring (403) further comprises:

a cavity (4032);

the spring (4033) is arranged in the cavity (4032), and one end of the spring (4033) is abutted against the inner wall of the cavity (4032);

a ball bin (4034), wherein one side of the ball bin (4034) is provided with an opening, a ball (4031) is arranged in the ball bin (4034), the opening allows a part of the ball (4031) to protrude outwards, and the other end of the spring (4033) abuts against the ball bin (4034).

7. A heat jacket assembly, comprising: machine housing (100), stator winding (200), base (300) and roller type shrink fit positioning tool (400) according to any one of claims 1 to 6,

wherein the stator winding (200) is fixed on the base (300);

wherein the outer diameter of the stator core positioning post (401) is smaller than the inner diameter of the hollow part of the stator winding (200) to allow the stator core positioning post (401) to be inserted into the stator winding (200).

8. The shrink fit assembly of claim 7, wherein the inner diameter of the heat expanded casing (100) is greater than the outer diameter of the outer rim of the positioning table (402) to enable the heat expanded casing (100) to be fitted over the stator windings (200) as guided by the positioning of the plurality of ball springs (403).