CN212210625U - Stator vibration isolation structure and turbo generator using same - Google Patents
Stator vibration isolation structure and turbo generator using same Download PDFInfo
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- CN212210625U CN212210625U CN202020739201.4U CN202020739201U CN212210625U CN 212210625 U CN212210625 U CN 212210625U CN 202020739201 U CN202020739201 U CN 202020739201U CN 212210625 U CN212210625 U CN 212210625U
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- vibration isolation
- stator
- isolation structure
- stator core
- support ring
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Abstract
The utility model discloses a stator vibration isolation structure and use turbo generator of this stator vibration isolation structure. This stator vibration isolation structure locates between the stator frame that has the crown plate and the stator core that has the support ring, the crown plate with support ring nested cooperation separates through a plurality of vibration isolation posts that set up along circumference, be equipped with on the crown plate with the corresponding curved structure hole of vibration isolation post. This stator vibration isolation structure through the cooperation in vibration isolation post and structure hole, can fully absorb stator core's vibration, compares with setting up the spring plate, has overall structure simple's characteristics. Through adopting this stator vibration isolation structure, can effectively reduce turbonator's production cycle, save raw and other materials, reduce advantages such as the processing degree of difficulty of key part.
Description
Technical Field
The utility model relates to a turbo generator technical field especially relates to a stator vibration isolation structure and use turbo generator of this stator vibration isolation structure.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
As turbo generator sets have been developed in a large scale, large frequency doubling electromagnetic vibrations may occur in the stator core and the stator frame of the generator in addition to the vibrations of the rotor and the bearing of the generator. In order to reduce the transmission of the vibration of the stator core to the stator frame and the foundation during operation, the inventor knows that an elastic vibration isolation plate, such as a spring plate, is arranged between the stator core and the stator frame, and can connect the stator core and the stator frame into a whole to support the stator core and the stator bar and simultaneously can effectively isolate the transmission of the vibration of the stator core to the stator frame.
The spring plates are mainly divided into two types, namely a vertical spring plate and a horizontal spring plate. The vertical spring plate structure is formed by tightly holding the stator iron core through the supporting ribs by utilizing a clamping ring, the clamping ring is connected and welded with the vertical spring plate by using screws, the spring plate is also connected and welded with the machine base by using the screws, and finally the iron core is fixed in the machine base. The horizontal integral long spring plate structure is characterized in that a support rib is connected with a stator core through a dovetail, the support rib is connected with a spring plate through an H-shaped cushion block by using a screw, and the spring plate is welded with a stator base.
Due to the complex structure of the spring plate, the production cost is increased, and the problems of long production and processing period, high raw material consumption, high processing difficulty of key parts and the like are also caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that above-mentioned exists, provide a stator vibration isolation structure, have the characteristics that overall structure is simple, still provide a turbo generator who adopts this kind of stator vibration isolation structure, can effectively reduce production cycle, save raw and other materials, reduce the processing degree of difficulty etc. of key part.
The utility model adopts the technical scheme as follows:
a stator vibration isolation structure which characterized in that: the stator core is arranged between a stator base with a ring plate and a stator core with a support ring, the ring plate is matched with the support ring in an embedded mode and is separated through a plurality of vibration isolation columns arranged along the circumferential direction, and arc-shaped structural holes corresponding to the vibration isolation columns are formed in the ring plate.
Furthermore, the structural hole is arc-shaped and concave towards the stator core, and the center of the arc-shaped circle coincides with the center of the distribution circle of the arc-shaped hole.
Furthermore, the ring plate and the support ring are respectively provided with a notch for clamping and fixing the vibration isolation column between the ring plate and the support ring.
Further, the vibration isolation column is cylindrical.
Further, the vibration isolation columns are elastic columns.
Further, the structural hole has multiple layers, and the arc angle is reduced from the inside to the outside.
Furthermore, the structural holes and the vibration isolation columns are provided with three pairs, wherein one pair is arranged right below the stator core.
The utility model also provides a turbo generator, its characterized in that: adopt any one above-mentioned stator vibration isolation structure.
Through comprehensively adopting the technical scheme, the utility model discloses can gain following beneficial effect:
through the cooperation of vibration isolation post and structure hole, can absorb stator core's vibration fully, compare with setting up the spring plate, have overall structure simple's characteristics, can effectively reduce production cycle, save raw and other materials, reduce advantages such as the processing degree of difficulty of key part.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of a stator vibration isolation structure provided by the present invention in some embodiments.
Description of reference numerals:
1-stator core, 2-support ring, 3-ring plate, 4-vibration isolation column and 5-structural hole.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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 all belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements 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.
In the drawings of the present invention, it should be understood that different technical features which are not mutually alternative are shown in the same drawing, and the embodiment described with reference to the drawings is not indicated or implied to include all the technical features in the drawings only for the convenience of simplifying the drawing description and reducing the number of drawings, and thus should not be understood as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1, in some embodiments, the present invention provides a stator vibration isolation structure, which is disposed between a stator frame with a ring plate 3 and a stator core 1 with a support ring 2, wherein the ring plate 3 is nested with the support ring 2 and is separated from the support ring by a plurality of vibration isolation pillars 4 disposed along a circumferential direction, and the ring plate 3 is provided with arc-shaped structural holes 5 corresponding to the vibration isolation pillars 4. Through set up vibration isolation column 4 between crown plate 3 and support ring 2, can make stator core's vibration concentrate transmit the crown plate 3 by vibration isolation column 4 on, the local elasticity of crown plate 3 can be strengthened to structural hole 5 that corresponds with vibration isolation column 4 for vibration can be fully absorbed by crown plate 3, avoids the vibration to be transmitted on the stator frame.
In some embodiments, the utility model provides a pair of stator vibration isolation structure is applicable to air cooling turbo generator. In one or more embodiments, the turbine generator is divided into an inner stator and an outer base by using the vibration isolation column 4 as a boundary, the inner stator comprises a stator core 1, a stator pressing ring, a support ring 2 and the like, and the outer base comprises a stator shell, a ring plate 3, an inner end cover and the like. In at least one embodiment, when the stator vibration isolation structure is installed, the vibration isolation columns 4 are welded and fastened with the support ring 2, and then the vibration isolation columns are welded with the ring plate 3 when the inner stator and the outer stator are assembled, so that a complete turbine generator stator is formed.
The structural holes 5 are provided for absorbing the vibrations of the stator core 1 transmitted by the vibration isolation columns 4 and are shaped so as to achieve a certain elasticity of the annular plate 3. In some embodiments, the structural holes 5 are arc-shaped and concave towards the stator core 1, and the center of the distribution circle of the structural holes 5 coincides with the center of the stator core 1. In one or more embodiments, the arc radius and the arc center of the structural hole 5 are not necessarily determined by the radius and the center of the ring plate 3 or the support ring 2 or the stator core 1, for example, the arc center of the structural hole 5 does not coincide with the center of the ring plate 3 or the support ring 2 or the stator core 1, and the arc of the structural hole 5 is not parallel to any arc on the circle of the ring plate 3 or the support ring 2 or the stator core 1. In at least one embodiment, the arc center of the structural hole 5 and the distribution center of the structural hole coincide with the center of the ring plate 3 or the support ring 2 or the stator core 1.
In some embodiments, the structural hole 5 has multiple layers, or the vibration isolation column 4 is an elastic column, which can further improve the elasticity of the vibration isolation structure and better absorb the vibration of the stator core 1. In at least one embodiment, for a multi-layer structured aperture 5, the arc angle decreases from the inside-out level.
The vibration isolation column 4 is firstly arranged between the ring plate 3 and the support ring 2 in a clamping and fixing mode, and then the vibration isolation column 4 is welded with the ring plate 3 and/or the support ring 2. In some embodiments, the ring plate 3 and the support ring 2 are respectively provided with a notch, and the shape of the notch is matched with the shape of the vibration isolation column 4, so that the vibration isolation column 4 can be clamped and fixed between the ring plate 3 and the support ring 2 before welding. In at least one embodiment, the isolator posts 4 are cylindrical.
In turbo generator, adopt any one kind of above-mentioned stator vibration isolation structure, through the cooperation of vibration isolation post 4 with structure hole 5, can fully absorb stator core 1's vibration, compare with setting up the spring plate, have the characteristics that overall structure is simple, can effectively reduce production cycle, save raw and other materials, reduce advantages such as the processing degree of difficulty of key part.
At least one exemplary embodiment is now provided in connection with the drawings, a detailed description of which is provided in the drawings not intended to limit the scope of the claimed invention, but is merely representative of exemplary embodiments provided in the invention.
As shown in fig. 1, a stator vibration isolation structure suitable for an air-cooled steam turbine generator is arranged between a stator base with a ring plate 3 and a stator core 1 with a support ring 2, wherein the ring plate 3 is nested with the support ring 2 and is separated by a plurality of vibration isolation columns 4 arranged along the circumferential direction. The vibration isolating column 4 has a cylindrical shape. The ring plate 3 and the support ring 2 are respectively provided with a notch, the shape of the notch is matched with the shape of the vibration isolation column 4, and the vibration isolation column 4 can be clamped and fixed between the ring plate 3 and the support ring 2 before welding.
The ring plate 3 is provided with an arc-shaped structural hole corresponding to the vibration isolation column 4. The structural holes 5 are arc-shaped and concave towards the stator core 1, and the circle centers of the distribution circles of the structural holes 5 are coincided with the circle center of the stator core 1. The arc circle center of the structural hole 5 coincides with the circle center of the ring plate 3 or the support ring 2 or the stator core 1.
The present exemplary embodiment differs from exemplary embodiment 1 in that:
The present exemplary embodiment differs from exemplary embodiment 1 in that:
the vibration isolation columns 4 are elastic columns, so that the elasticity of the vibration isolation structure can be further improved, and the vibration of the stator core 1 can be better absorbed.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (8)
1. A stator vibration isolation structure which characterized in that: the stator core is arranged between a stator base with a ring plate and a stator core with a support ring, the ring plate is matched with the support ring in an embedded mode and is separated through a plurality of vibration isolation columns arranged along the circumferential direction, and structural holes corresponding to the vibration isolation columns are formed in the ring plate.
2. The stator vibration isolation structure according to claim 1, wherein: the structural hole is arc-shaped and concave to the stator core, and the arc-shaped circle center of the structural hole coincides with the circle center of the distribution circle of the structural hole.
3. The stator vibration isolation structure according to claim 1 or 2, wherein: the ring plate and the support ring are respectively provided with a notch for clamping and fixing the vibration isolation column between the ring plate and the support ring.
4. The stator vibration isolation structure according to claim 1 or 2, wherein: the vibration isolation column is cylindrical.
5. The stator vibration isolation structure according to claim 1 or 2, wherein: the vibration isolation columns are elastic columns.
6. The stator vibration isolation structure according to claim 1 or 2, wherein: the structural hole has multiple layers, and the arc angle is gradually reduced from inside to outside.
7. The stator vibration isolation structure according to claim 1 or 2, wherein: the structure holes and the vibration isolation columns are provided with three pairs, wherein one pair is arranged right below the stator core.
8. A turbonator characterized by: the stator vibration isolation structure according to any one of claims 1 to 5 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020739201.4U CN212210625U (en) | 2020-05-07 | 2020-05-07 | Stator vibration isolation structure and turbo generator using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020739201.4U CN212210625U (en) | 2020-05-07 | 2020-05-07 | Stator vibration isolation structure and turbo generator using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212210625U true CN212210625U (en) | 2020-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020739201.4U Active CN212210625U (en) | 2020-05-07 | 2020-05-07 | Stator vibration isolation structure and turbo generator using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212210625U (en) |
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2020
- 2020-05-07 CN CN202020739201.4U patent/CN212210625U/en active Active
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