CN211296345U

CN211296345U - Stator segment

Info

Publication number: CN211296345U
Application number: CN202020402024.0U
Authority: CN
Inventors: 于立新; 李伟萍; 李伟峰
Original assignee: Harbin Huizhi Industrial Technology Development Co ltd
Current assignee: Harbin Huizhi Industrial Technology Development Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-08-18
Anticipated expiration: 2030-03-26

Abstract

The utility model discloses a stator segment, including stator towards piece, segment body, left identification block, locating hole, radiating groove, a plurality of stator towards pieces of slice body lower extreme fixedly connected with, stator towards piece evenly distributed and adjacent two stator towards form rectangular shape towards piece groove between the piece, stator towards piece one side fixedly connected with left identification block is kept away from to segment body left side edge, the fixed locating hole that is provided with in left side identification block right side, the fixed first locating groove that is provided with in locating hole right side, the fixed radiating groove that is provided with in first locating groove right side, the radial outside of segment body all is provided with the spread groove, just it is thirty degrees to be provided with an initial angle between two spread grooves, the adjacent stator towards piece of rectangular shape towards piece groove all has initial angle thirty degrees contained angles. The utility model discloses in, can effectually avoid the stator equipment in-process, take place the phenomenon of fanning strip misloading, anti-dress, effectively improved the radiating efficiency of generator.

Description

Stator segment

Technical Field

The utility model relates to a generator spare part field especially relates to a stator segment.

Background

The stator core is an important component of the generator and is formed by the processes of laminating stator fan-shaped sheets and the like. The radial inner side of the stator fan-shaped sheet is provided with a notch for winding a stator winding; the radial outer side of each stator segment is a smooth curved surface and is used for being welded with a machine base, a stator core of a large-scale water turbine generator set is usually installed by hundreds of thousands or even hundreds of thousands of iron core segment punching sheets in a lamination mode, the lamination thickness is 0.5mm, each layer is installed in a staggered mode, and the workload is huge. Because the sector punching sheet has single color, and the process holes for distinguishing the front side and the back side of the punching sheet are smaller during manufacturing, the phenomena of wrong sheets and reversed sheets are very easy to occur in the actual installation process, and the integral waviness and the installation quality of the stator core are seriously influenced.

The existing stator segment structure is easy to generate heat for a stator core of a high-power generator, and in the installation process, due to the fact that the number of the stator segments is large, the stator segments are easy to install in a wrong mode or in a reverse mode, and the overall working efficiency of the generator is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a stator segment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a stator fanning strip, includes stator towards piece, fanning strip body, left discernment piece, locating hole, radiating groove, a plurality of stator towards pieces of fixedly connected with of fanning strip body lower extreme, stator towards piece evenly distributed and form rectangular shape towards the piece groove between two adjacent stator towards pieces, stator towards piece one side fixedly connected with left discernment piece is kept away from to fanning strip body left side edge, the fixed locating hole that is provided with in left side discernment piece right side, the fixed first locating groove that is provided with in locating hole right side, the fixed radiating groove that is provided with in first locating groove right side, the fixed processing in radiating groove right side is provided with the second constant head tank, second constant head tank right side is processed there are locating hole and right discern.

As a further description of the above technical solution:

the radial outside of fan-shaped piece body all is provided with the spread groove, just it is thirty degrees to be provided with an initial angle between two spread grooves, the adjacent stator punching in rectangular shape punching sheet groove all has the contained angle of initial angle thirty degrees between the piece.

As a further description of the above technical solution:

the length of the left identification block should be greater than the right identification block.

As a further description of the above technical solution:

the length of the segment body is consistent with that of the stator punching sheet.

As a further description of the above technical solution:

bottom surface all scribbles A kind of colour coating about the left side discernment piece, bottom surface all scribbles B kind of colour coating about the right side discernment piece, and A kind of colour coating should be two kinds of colours that distinctiveness is big with B kind of colour coating.

As a further description of the above technical solution:

the diameter of the positioning hole is far smaller than the width of the first positioning groove, and the distance between the left positioning hole and the left identification block is smaller than the distance between the right positioning hole and the right identification block.

As a further description of the above technical solution:

stator punching, fan-shaped piece body, left discernment piece, locating hole, first constant head tank, radiating groove, second constant head tank, right discernment piece, rectangular shape towards the piece groove and all be integrative punching press and form.

The utility model discloses following beneficial effect has:

1. the utility model discloses in set up left discernment piece and right discernment piece respectively in fanning strip body both sides, through the size difference between different colours of spraying and left discernment piece, the right discernment piece, the condition that can the misloading of quick judgement, perhaps adorn instead takes place.

2. The utility model discloses well top is provided with the radiating groove, and the region that generates heat the most at the stator during operation has increased heat radiating area, can effectively improve the heat dispersion of generator.

Drawings

Fig. 1 is a front view of a stator segment according to the present invention;

fig. 2 is a side view of a stator segment according to the present invention;

fig. 3 is a top view of a stator segment according to the present invention.

Illustration of the drawings:

1. stator punching sheets; 2. a segment body; 3. a left identification block; 4. positioning holes; 5. a first positioning groove; 6. a heat sink; 7. a second positioning groove; 8. a right identification block; 9. strip-shaped sheet punching grooves; 10. and connecting the grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a stator fan-shaped piece comprises stator punching sheets 1, a fan-shaped piece body 2, a left identification block 3, a positioning hole 4 and a heat dissipation groove 6, wherein the lower end of the fan-shaped piece body 2 is fixedly connected with a plurality of stator punching sheets 1, the stator punching sheets 1 are uniformly distributed, a strip-shaped punching sheet groove 9 is formed between every two adjacent stator punching sheets 1, one side of the left side edge of the fan-shaped piece body 2, which is far away from the stator punching sheets 1, is fixedly connected with the left identification block 3, the right side of the left identification block 3 is fixedly provided with the positioning hole 4, the right side of the positioning hole 4 is fixedly provided with a first positioning groove 5, the right side of the first positioning groove 5 is fixedly provided with the heat dissipation groove 6, the right side of the heat dissipation groove 6 is fixedly processed with a second positioning groove 7, the right side of the second positioning groove 7 is also processed with the positioning hole 4 and a right identification block 8, the upper bottom surface and the lower bottom surface of, the diameter of the positioning hole 4 should be much smaller than the width of the first positioning groove 5, and the distance between the left positioning hole 4 and the left identification block 3 should be smaller than the distance between the right positioning hole 4 and the right identification block 8.

The radial outside of segmental body 2 all is provided with spread groove 10, and be provided with an initial angle between two spread grooves 10 and be thirty degrees, the adjacent stator in rectangular shape towards piece groove 9 all has the contained angle of initial angle thirty degrees between the piece 1, the length of left side discernment piece 3 should be greater than right discernment piece 8, the length of segmental body 2 is unanimous with the length that the stator punched piece 1, the stator is punched piece 1, segmental body 2, left side discernment piece 3, locating hole 4, first locating groove 5, the radiating groove 6, second constant head tank 7, right side discernment piece 8, rectangular shape towards piece groove 9 is integrative punching press and forms.

The working principle is as follows:

1. when assembling, with every layer of mutual dislocation 1/2 installation between the stator segment, superpose the upper side, need pay attention to when assembling that same side possesses the discernment piece of two different colours.

2. At four corners of the assembled stator, each corner can only have the identification block with the same color, and the identification blocks between adjacent corners are different.

3. If the fan-shaped pieces are wrongly assembled and reversely assembled, the fan-shaped pieces can be found out according to the length of the identification block and the permeability of the positioning hole.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a stator segment, includes stator punching (1), segment body (2), left discernment piece (3), locating hole (4), radiating groove (6), its characterized in that: the stator punching sheet is characterized in that a plurality of stator punching sheets (1) are fixedly connected to the lower end of the fan-shaped sheet body (2), long-strip-shaped punching sheet grooves (9) are formed between the stator punching sheets (1) which are evenly distributed and adjacent to each other, a left identification block (3) is fixedly connected to one side of each stator punching sheet (1) and is far away from the left edge of the left side of each fan-shaped sheet body (2), a positioning hole (4) is fixedly arranged on the right side of each left identification block (3), a first positioning groove (5) is fixedly arranged on the right side of each positioning hole (4), a heat dissipation groove (6) is fixedly arranged on the right side of each heat dissipation groove (6), a second positioning groove (7) is formed in the right side of each heat dissipation groove (6), and a positioning hole (4.

2. A stator segment in accordance with claim 1 wherein: the radial outer side of the fan-shaped sheet body (2) is provided with connecting grooves (10), an initial angle is thirty degrees and is arranged between the two connecting grooves (10), and an included angle of thirty degrees of the initial angle is formed between adjacent stator punching sheets (1) of the strip-shaped punching sheet groove (9).

3. A stator segment in accordance with claim 1 wherein: the length of the left identification block (3) is larger than that of the right identification block (8).

4. A stator segment in accordance with claim 1 wherein: the length of the segment body (2) is consistent with that of the stator punching sheet (1).

5. A stator segment in accordance with claim 1 wherein: bottom surface all scribbles A kind of colour coating about left side discernment piece (3), bottom surface all scribbles B kind of colour coating about right side discernment piece (8), and A kind of colour coating should be two kinds of colours that distinctiveness is big with B kind of colour coating.

6. A stator segment in accordance with claim 1 wherein: the diameter of the positioning hole (4) is far smaller than the width of the first positioning groove (5), and the distance between the left positioning hole (4) and the left identification block (3) is smaller than the distance between the right positioning hole (4) and the right identification block (8).

7. A stator segment in accordance with claim 1 wherein: the stator punching sheet (1), the fan-shaped sheet body (2), the left identification block (3), the positioning hole (4), the first positioning groove (5), the radiating groove (6), the second positioning groove (7), the right identification block (8) and the strip-shaped punching sheet groove (9) are all integrally formed by punching.