CN202334038U - Composite tooth pressing plate structure for stator of hydraulic turbine generator - Google Patents
Composite tooth pressing plate structure for stator of hydraulic turbine generator Download PDFInfo
- Publication number
- CN202334038U CN202334038U CN2011204698372U CN201120469837U CN202334038U CN 202334038 U CN202334038 U CN 202334038U CN 2011204698372 U CN2011204698372 U CN 2011204698372U CN 201120469837 U CN201120469837 U CN 201120469837U CN 202334038 U CN202334038 U CN 202334038U
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- Prior art keywords
- pressing plate
- stator
- plate structure
- tooth support
- bearing adjustment
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- Expired - Lifetime
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- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to the field of pressing of stator iron cores of generators, in particular to a composite tooth pressing plate structure for a stator of a hydraulic turbine generator. The composite tooth pressing plate structure for the stator of the hydraulic turbine generator comprises a stator iron core, a bearing adjustment pressing plate and blocking small-tooth pressing plates, wherein the bearing adjustment pressing plate and the blocking small-tooth pressing plates are connected with and pressed against the stator iron core through a pulling screw; the pulling screw penetrates through an axial end face of the stator iron core; the bearing adjustment pressing plate is in a circular ring shape; and a plurality of blocking small-tooth pressing plates are arranged on the bearing adjustment pressing plate. The composite tooth pressing plate structure for the stator of the hydraulic turbine generator has the advantages of a large-tooth pressing plate structure and a small-tooth pressing plate structure and is simple in structure and convenient to install, the effective compression of the stator iron core is ensured, the operating reliability of the generator is improved, and the service life of the generator is prolonged.
Description
Technical field
The utility model relates to a kind of vertical type generator stator core dress laminated structure.
Background technology
Hydraulic generator belongs to electrical generator fields, and stator core is the core component of generator, and the dress of stator core press be generator steadily, the necessary condition of safe operation, to also producing important meaning in useful life of generator.When the stator core tightness is not enough, can increase at generator whole stator core punching electric and magnetic oscillation under the electromagnetic force effect in running, the long-time running meeting makes punching in the fatigue rupture that bends of tooth portion, and then influences the normal safe operation of generator.
The dress laminated structure of hydraulic turbogenerator stator iron core mainly adopts canine tooth pressure plate structure or little tooth support structure at present.The canine tooth pressure plate structure is simple, and is easy for installation, in medium and small generator, obtained using widely; But along with improving constantly of hydraulic generator single-machine capacity, the diameter of stator is corresponding significantly to be increased, and guarantee that the flatness of big tooth support becomes very difficult; Thereby also be difficult to the tightness that guarantees that stator core laminates; Core vibration when causing generator operation then possibly cause the fault of stator scaling loss, has a strong impact on the life-span of hydraulic generator.Though little tooth support structure has overcome the shortcoming of canine tooth pressure plate structure; Improved the compaction degree of stator core; But little tooth support structure installs more complicated; And in the generator of long iron core since on tooth support to bear the very big gravity of iron core itself, difficulty so overall construction design is got up comparatively.
The utility model content
The goal of the invention of the utility model is: to the problem that prior art exists, provide a kind of simple in structure, easy for installation and can guarantee a kind of hydraulic generator stator composite teeth pressure plate structure of stator core compaction degree.
To achieve these goals, the technical scheme of the utility model employing is:
A kind of hydraulic generator stator composite teeth pressure plate structure comprises stator core, also comprises load-bearing adjustment pressing plate and the little tooth support of piecemeal, wherein,
Said load-bearing adjustment pressing plate is connected through stretching screw with the little tooth support of piecemeal and compresses stator core;
Said stretching screw is through the axial end of stator core.
As the preferred version of the utility model, said load-bearing adjustment pressing plate is annular, and the adjustment pressing plate anchor ring of said annular is provided with the little tooth support of some piecemeals.
As the preferred version of the utility model, said stretching screw is provided with the nut that is used to adjust the stator core compaction degree.
As the preferred version of the utility model, be provided with pad between said load-bearing adjustment pressing plate and the little tooth support of piecemeal.This pad be used for adjusting the little tooth support of piecemeal flatness, guarantee the little tooth support of piecemeal at grade, avoid because the flatness error that the machining accuracy reason of load-bearing adjustment pressing plate and the little tooth support of piecemeal causes.
The structure of load-bearing in the utility model adjustment pressing plate and the little tooth support of piecemeal respectively with prior art in the structure of existing big tooth support and little tooth support be identical, do not do and give unnecessary details in this shape, structure both.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
Because the composite teeth pressure plate structure of the utility model adopts technique scheme; Promptly comprise load-bearing adjustment pressing plate and the little tooth support of piecemeal; Compress stator core through stretching screw, the little tooth support of piecemeal is arranged on the load-bearing adjustment pressing plate simultaneously, is the strong point of integral planar degree of little tooth support wholecircle week of piecemeal with load-bearing adjustment pressing plate; Nut through being arranged on the stretching screw is adjusted the compaction degree to iron core, and load-bearing adjustment pressing plate can also bear the gravity of stator core.Therefore; The hydraulic generator stator composite teeth pressure plate structure of the utility model has the advantage of big or small tooth support structure concurrently; Simple in structure, easy for installation and guaranteed effective compaction degree to stator core, improved the reliability of generator operation, prolonged the useful life of generator.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Mark among the figure: 1-load-bearing adjustment pressing plate, the little tooth support of 2-piecemeal, 3-stator core, 4-stretching screw, 5-nut.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1; The described a kind of hydraulic generator stator composite teeth pressure plate structure of the utility model; Comprise stator core 3; Also comprise load-bearing adjustment press 1 with the little tooth support 2 of piecemeal, shape, the structure of existing big tooth support and little tooth support are identical or similar in the shape of load-bearing adjustment pressing plate 1 and the little tooth support 2 of piecemeal, structure and the prior art, wherein; Load-bearing adjustment pressing plate 1 is arranged on the outer end of stator core 3 end faces that can bear stator core 3 gravity own; At the wholecircle of load-bearing adjustment pressing plate 1 on week, i.e. load-bearing adjustment pressing plate 1 is provided with the little tooth support 2 of some piecemeals with contact-making surface between the stator core 3, through stretching screw 4 stator core 3 and the little tooth support 2 of piecemeal is fixed as an integral body in the axial both ends of the surface of stator core 3.Simultaneously, stretching screw 4 is provided with nut 5, can regulate the compaction degree of composite teeth pressure plate structure to stator core 3 through nut 5; At this moment; With load-bearing adjustment pressing plate 1 is the strong point of integral planar degree of little tooth support 2 wholecircles week of piecemeal, through tightening or unscrewing the nut 5 that is arranged on the stretching screw 4 and realize the compaction degree adjustment to iron core, in addition; If because the reason of load-bearing adjustment pressing plate 1 and little tooth support 2 machining accuracies of piecemeal; Cause the little tooth support 2 of some piecemeals can not keep at grade, at this moment can adjust between pressing plate 1 and the little tooth support 2 of piecemeal pad is set, be used for adjusting the flatness of the little tooth support 2 of piecemeal in load-bearing.Therefore the hydraulic generator stator composite teeth pressure plate structure of the utility model has the advantage of big or small tooth support structure concurrently; Simple in structure, easy for installation and guaranteed effective compaction degree to stator core; Improve the reliability of generator operation, prolonged the useful life of generator.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (4)
1. a hydraulic generator stator composite teeth pressure plate structure comprises stator core, it is characterized in that, also comprises load-bearing adjustment pressing plate and the little tooth support of piecemeal, wherein,
Up and down little tooth support is installed two ends at stator core, the little tooth support of below is positioned on the said load-bearing adjustment pressing plate, and load-bearing adjustment pressing plate, the little tooth support of piecemeal are connected through stretching screw with stator core and compress;
Said stretching screw is through the axial end of stator core.
2. hydraulic generator stator composite teeth pressure plate structure according to claim 1 is characterized in that, said load-bearing adjustment pressing plate is an annular, and the adjustment pressing plate of said annular is provided with the little tooth support of some piecemeals.
3. hydraulic generator stator composite teeth pressure plate structure according to claim 1 and 2 is characterized in that said stretching screw is provided with the nut that is used to adjust the stator core compaction degree.
4. hydraulic generator stator composite teeth pressure plate structure according to claim 1 and 2 is characterized in that, is provided with the pad that is used for leveling between said load-bearing adjustment pressing plate and the little tooth support of piecemeal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204698372U CN202334038U (en) | 2011-11-23 | 2011-11-23 | Composite tooth pressing plate structure for stator of hydraulic turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204698372U CN202334038U (en) | 2011-11-23 | 2011-11-23 | Composite tooth pressing plate structure for stator of hydraulic turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334038U true CN202334038U (en) | 2012-07-11 |
Family
ID=46446004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204698372U Expired - Lifetime CN202334038U (en) | 2011-11-23 | 2011-11-23 | Composite tooth pressing plate structure for stator of hydraulic turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334038U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580306A (en) * | 2013-11-12 | 2014-02-12 | 中电电机股份有限公司 | Tooth pressing sheet with boss |
| CN109301951A (en) * | 2017-07-25 | 2019-02-01 | 丰田自动车株式会社 | Rotating electric machine |
-
2011
- 2011-11-23 CN CN2011204698372U patent/CN202334038U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580306A (en) * | 2013-11-12 | 2014-02-12 | 中电电机股份有限公司 | Tooth pressing sheet with boss |
| CN109301951A (en) * | 2017-07-25 | 2019-02-01 | 丰田自动车株式会社 | Rotating electric machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |