CN220291836U - Stator core-penetrating screw tensioning structure - Google Patents
Stator core-penetrating screw tensioning structure Download PDFInfo
- Publication number
- CN220291836U CN220291836U CN202321492581.6U CN202321492581U CN220291836U CN 220291836 U CN220291836 U CN 220291836U CN 202321492581 U CN202321492581 U CN 202321492581U CN 220291836 U CN220291836 U CN 220291836U
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- CN
- China
- Prior art keywords
- screw
- stator
- main beam
- auxiliary
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000003825 pressing Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004080 punching Methods 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 238000003475 lamination Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model provides a stator through screw tensioning structure, which comprises an auxiliary screw, an auxiliary screw cap, an electric jack and a detached main beam, wherein the auxiliary screw is connected with the auxiliary screw; the lower end of the auxiliary screw rod is detachably connected with the upper end of the penetrating screw rod, and the upper end of the auxiliary screw rod penetrates through the main beam to be connected with the auxiliary screw cap; the structure formed by the auxiliary screw and the auxiliary nut forms a movable clamping relation with the main beam; the electric jack is placed on an iron core pressing plate of the stator punching screw pressing mechanism, and the upper end of the electric jack props against the main beam. The utility model can apply force by using the electric jack without manual force, and has large pretightening force and good tensioning effect; and is convenient to operate.
Description
Technical Field
The utility model relates to a stator core-through screw tightening structure.
Background
The stator core of the generator is usually formed by laminating silicon steel sheets, and after lamination, pressing plates are placed up and down, and then the silicon steel sheets are tightly pressed by tightening a punching screw. With the increase of generator capacity, the core lamination is thicker and thicker, and required compaction force is also bigger and bigger, and through ordinary screwing up the instrument and be difficult to satisfy the installation requirement, because stator core is located the machine hole in addition, the space is limited, and complicated construction tool also can't develop and use.
Disclosure of Invention
The utility model aims to overcome the defects of the background technology and provide a stator core-penetrating screw tensioning structure which can improve the convenience of operation and the tensioning effect. For this purpose, the utility model adopts the following technical scheme:
the stator through screw tensioning structure is characterized by comprising an auxiliary screw, an auxiliary screw cap, an electric jack and a detached main beam; the lower end of the auxiliary screw rod is detachably connected with the upper end of the penetrating screw rod, and the upper end of the auxiliary screw rod penetrates through the main beam to be connected with the auxiliary screw cap; the structure formed by the auxiliary screw and the auxiliary nut forms a movable clamping relation with the main beam; the electric jack is placed on an iron core pressing plate of the stator punching screw pressing mechanism, and the upper end of the electric jack props against the main beam.
On the basis of adopting the technical scheme, the utility model can also adopt the following further technical schemes or use the further technical schemes in combination:
the upper end of the through screw is provided with a threaded connection hole from the end face to the bottom; the auxiliary screw is in threaded connection with the threaded connection hole.
The main beam is fixed on the stator base through a strut, the lower end of the strut is connected with the stator base, and the upper end of the strut is connected with the main beam; the support column and the stator base are detachably connected, or the main beam and the support column are detachably connected.
The main beam is a channel steel and is provided with a hole for the auxiliary screw rod to pass through, and the auxiliary screw rod can pass through.
The main beam is fixed on the stator base through a strut, the lower end of the strut is connected with the stator base, and the upper end of the strut is connected with the main beam; the holes are at a shorter distance from the electric jack than from the struts.
The horizontal distance from the hole to the jack is L2, and the distance from the hole to the support column is L1; the length relationship between the two is L2< L1<2L2.
The center penetrating screw rod adopts a hollow screw rod, and threads are formed at the upper end of a center hole of the center penetrating screw rod.
The stator punching screw compressing mechanism comprises a punching screw, an upper main screw cap, a lower main screw cap, a butterfly-shaped gasket and an iron core pressing plate, wherein the lower end of the punching screw is connected with the lower main screw cap, and the punching screw penetrates through the stator iron core lamination and penetrates through the iron core pressing plate to be connected with the upper main screw cap; the main nut presses the iron core pressing plate through the butterfly-shaped gasket.
By adopting the technical scheme of the utility model, the utility model has the following technical effects:
1. the utility model can apply force by using the electric jack without manual force, and has large pretightening force and good tensioning effect; and is convenient to operate.
2. The stator frame only bears the pressure of the support column, so that the stator is safe and reliable;
3. the device occupies small space and is convenient to implement.
Drawings
The utility model will be further described with reference to the drawings and detailed description.
FIG. 1 is a cross-sectional view of the present utility model;
Detailed Description
The utility model is further described below with reference to the drawings and detailed description.
As shown in fig. 1, the stator punching screw compressing mechanism comprises a punching screw 1, an upper main screw cap 31, a lower main screw cap 32, butterfly gaskets 5 and a core pressing plate 6, wherein the lower end of the punching screw 1 is connected with the lower main screw cap 32, and the punching screw 1 penetrates through a stator core lamination and penetrates through the core pressing plate 6 to be connected with the upper main screw cap 31. The main nut 3 presses the core pressing plate 6 through the butterfly washer 5.
The utility model provides a tensioning structure of a stator through screw, which comprises an auxiliary screw 2, an auxiliary screw cap 4, a main beam 7, an electric jack 8 and a strut 9, wherein a threaded connection hole 11 is formed in the upper end of the through screw 1 from the end face to the bottom.
The lower part of the auxiliary screw rod 2 is connected with the inner thread of the central threaded hole 11 at the upper end of the penetrating screw rod in a penetrating way; the upper part of the auxiliary screw rod 2 passes through the main beam 7 to be in threaded connection with the auxiliary nut 4, and the structure formed by the auxiliary screw rod 2 and the auxiliary nut 4 forms a movable clamping relation with the main beam 7; the electric jack 8 is arranged on the iron core pressing plate 6, and the upper end of the electric jack is propped against the main beam 7; the lower end of the strut 9 is fixed on the stator base, and the upper end is fixedly connected with the main beam 7.
The main beam 7 is a channel steel and is provided with a hole for the auxiliary screw 2 to pass through, and the auxiliary screw 2 can pass through, wherein the distance from the hole to the electric jack 8 is shorter than the distance from the support column 9, in the embodiment, the horizontal distance from the hole to the electric jack is 10cm, and the distance from the hole to the support column 9 is 15cm. The support column 9 can be detachably connected with the stator base, so that after the tensioning work is finished, the support column 9 and the main beam 7 can be removed together, the support column 9 can also be fixed with the stator base, and the main beam and the support column 9 are detachably connected, and after the tensioning work is finished, only the main beam 7 is removed.
The penetrating screw 1 can be a whole hollow screw, and the upper end of the central hole of the penetrating screw is provided with threads.
In the implementation process, the main beam 7 is jacked by the jack 8, the iron core is pressed by the iron core pressing plate 6 downwards by the reaction force of the jack 8 according to the lever principle, after the pretightening force of the iron core pressing plate meets the requirement, the main screw cap 31 can be screwed down, and then the auxiliary screw cap 4, the auxiliary screw rod 2, the jack 8, the main beam 7 and the support column 9 are removed, so that the installation is completed.
The foregoing is merely illustrative of specific embodiments of this utility model and is not intended to limit the scope of the utility model, but it is to be construed as limited to only those equivalent changes and modifications which will occur to those skilled in the art without departing from the spirit and principles of the utility model as defined in the appended claims.
Claims (8)
1. The stator through screw tensioning structure is characterized by comprising an auxiliary screw, an auxiliary screw cap, an electric jack and a detached main beam; the lower end of the auxiliary screw rod is detachably connected with the upper end of the penetrating screw rod, and the upper end of the auxiliary screw rod penetrates through the main beam to be connected with the auxiliary screw cap; the structure formed by the auxiliary screw and the auxiliary nut forms a movable clamping relation with the main beam;
the electric jack is placed on an iron core pressing plate of the stator punching screw pressing mechanism, and the upper end of the electric jack props against the main beam.
2. The stator core-through screw tightening structure according to claim 1, wherein the upper end of the core-through screw is provided with a threaded connection hole from the end face to the bottom; the auxiliary screw is in threaded connection with the threaded connection hole.
3. The stator through-hole screw tensioning structure according to claim 1, wherein the main beam is fixed on the stator base through a strut, the lower end of the strut is connected with the stator base, and the upper end of the strut is connected with the main beam; the support column and the stator base are detachably connected, or the main beam and the support column are detachably connected.
4. A stator feed-through screw tensioning apparatus as set forth in claim 1 wherein said main beam is a channel having holes for passage of auxiliary screws therethrough.
5. The stator through-screw tightening structure according to claim 4, wherein the main beam is fixed on the stator base through a strut, the lower end of the strut is connected with the stator base, and the upper end of the strut is connected with the main beam; the holes are at a shorter distance from the electric jack than from the struts.
6. A stator feed-through screw tensioning construction as defined in claim 5 wherein the horizontal distance from said aperture to said jack is L2 and the distance from said aperture to said post is L1; the length relationship between the two is L2< L1<2L2.
7. A stator through-screw tightening structure as claimed in claim 1, wherein said through-screw is a hollow screw having a thread formed at an upper end of a central hole thereof.
8. The stator core-through screw tightening structure according to claim 1, wherein the stator core-through screw tightening mechanism comprises a core-through screw, an upper main screw cap, a lower main screw cap, a butterfly washer and a core pressing plate, wherein the lower end of the core-through screw is connected with the lower main screw cap, and the core-through screw penetrates through the stator core lamination and penetrates through the core pressing plate to be connected with the upper main screw cap; the main nut presses the iron core pressing plate through the butterfly-shaped gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321492581.6U CN220291836U (en) | 2023-06-12 | 2023-06-12 | Stator core-penetrating screw tensioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321492581.6U CN220291836U (en) | 2023-06-12 | 2023-06-12 | Stator core-penetrating screw tensioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220291836U true CN220291836U (en) | 2024-01-02 |
Family
ID=89338789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321492581.6U Active CN220291836U (en) | 2023-06-12 | 2023-06-12 | Stator core-penetrating screw tensioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220291836U (en) |
-
2023
- 2023-06-12 CN CN202321492581.6U patent/CN220291836U/en active Active
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