CN102518675A - Single supporting main shaft and bearing integrated solid retainer of high-power wind driven generator - Google Patents
Single supporting main shaft and bearing integrated solid retainer of high-power wind driven generator Download PDFInfo
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- CN102518675A CN102518675A CN2011104411502A CN201110441150A CN102518675A CN 102518675 A CN102518675 A CN 102518675A CN 2011104411502 A CN2011104411502 A CN 2011104411502A CN 201110441150 A CN201110441150 A CN 201110441150A CN 102518675 A CN102518675 A CN 102518675A
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- retainer
- main shaft
- driven generator
- pockets
- integrated solid
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Abstract
The invention discloses a single supporting main shaft and bearing integrated solid retainer of a high-power wind driven generator. The invention is characterized in that: the retainer has an integrated solid steel retainer structure and comprises a retainer base body and a plurality of pockets, and the pockets have a step structure. By adopting the structural form of the integrated solid steel retainer, the problems of instable operation and low strength of the conventional stamped retainer and the conventional strut type retainer are effectively solved; and because the pockets have the step structure, good contact between a rolling body and the pockets is ensured, meanwhile, the weight of the solid retainer is lightened, and the revolving flexibility of a bearing is improved.
Description
Technical fieldThe present invention relates to a kind of retainer, concrete relate to a kind of integral type solid cage that is applied to high-power wind-driven generator list supports main shaft bearing.
Background techniqueContinuous development along with China's wind-powered electricity generation industry; The complete blower price competition also is growing more intense; And wind-powered electricity generation price and power of fan are inversely proportional to, and power of fan is big more, and the blower fan cost is low more; Small-power wind-powered electricity generation unit has lost competitive advantage gradually, and domestic complete machine manufacturing enterprise develops 3.0MW and above high-power wind turbine unit in a hurry.The wind energy resources developed of China's coastal waters wind field is 3 times that land reality can be developed wind energy content, and its wind energy content is far above land, and under situation about hastening towards saturation the land blower fan of China day, high-power offshore wind farm unit is developed.At present, main frame producer such as Hua Rui, the state Electricity Federation of occupying absolute share at home on the market are closed power, the bright sun in Guangdong, sea, Chongqing dress etc. and have all been turned to the high-power unit of 3.0～5.0MW to R&D direction, and part enterprise has accomplished the model machine examination.Therefore 3.0～5.0MW wind-powered electricity generation unit will become mainstream model of future generation, and be widely used in the wind field of land, sea, the various environment in intertidal zone and different wind-resources conditions.
The high-power blower main shaft bearing all depends on external import at present; If the following blower fan of producing in enormous quantities; Key components and parts does not have the core technology of oneself; So Chinese blower fan development cost will be very huge, and the Lead Time of the main shaft bearing of external import is long, is restricting the installation of domestic high-power wind turbine unit equally.Therefore the research and development ability deficiency of main shaft bearing is the major obstacle factor that current domestic homemade blower fan maximizes.
In order to tackle the growth requirement of high-power unit wind-driven generator; Our company has designed a kind of employing integral type, high-intensity steel retainer structure, adopts single supports main shaft bearing of this retainer can satisfy the usage requirement of high-power wind-driven generator list supports main shaft bearing.
Summary of the inventionDefective in view of the prior art existence; The objective of the invention is to provide a kind of novel high-power wind-driven generator list supports main shaft bearing integral type solid cage; This retainer is simple in structure; Adopt the integral type entity structure, overcome problems such as traditional pressing cage and post cage galloping, intensity are low well.
For realizing above-mentioned purpose, technological scheme of the present invention is following:
High-power wind-driven generator list supports main shaft bearing integral type solid cage is characterized in that: said retainer is an integral type entity steel retainer structure, comprises retainer matrix and some pockets hole, and ladder-type structure is adopted in described pocket hole.
After adopting the bearing of above-mentioned retainer, compare with existing bearing and to have following beneficial effect:
Be applied to the high-power wind-driven generator main shaft bearing; Its outside dimension is more than 2500mm; Carry the various load of impeller alone; Comprise axial force, radial force and tilting moment; Tradition pressing cage and post cage structure can not satisfy the usage requirement of high-mechanic, high reliability, long lifetime main shaft bearing, and the present invention proposes a kind of structural type that adopts integral type entity steel retainer, have overcome traditional pressing cage and column support type retainer galloping, problem that intensity is low effectively; Ladder-type structure is adopted in the pocket hole, has guaranteed that rolling element contacts with the good of pocket hole, has alleviated the weight of solid cage itself simultaneously, and then has improved the revolution flexibility of bearing.
Description of drawings
Fig. 1 is a structural profile simplified schematic diagram of the present invention;
Fig. 2 is that A is to stepped shaft pocket hole schematic representation.
Among the figure: 1, retainer matrix, 2, the pocket hole.
Embodiment
Specify the present invention below in conjunction with accompanying drawing:
As shown in Figure 1; Said retainer is an integral type entity steel retainer structure; Comprise retainer matrix 1 and some pockets hole 2; This structure has overcome traditional pressing cage and column support type retainer galloping, problem that intensity is low effectively, can satisfy the usage requirement of high-power wind-driven generator main shaft bearing high-mechanic, high reliability, long lifetime main shaft bearing.
As shown in Figure 2, ladder-type structure is adopted in said pocket hole 2, and ladder-type structure has guaranteed that rolling element contacts with the good of pocket hole, has alleviated the weight of solid cage itself simultaneously, and then has improved the revolution flexibility of bearing.
Claims (1)
1. high-power wind-driven generator list supports main shaft bearing integral type solid cage; It is characterized in that: said retainer is an integral type entity steel retainer structure; Comprise retainer matrix (1) and some pockets hole (2), ladder-type structure is adopted in described pocket hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104411502A CN102518675A (en) | 2011-12-26 | 2011-12-26 | Single supporting main shaft and bearing integrated solid retainer of high-power wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104411502A CN102518675A (en) | 2011-12-26 | 2011-12-26 | Single supporting main shaft and bearing integrated solid retainer of high-power wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102518675A true CN102518675A (en) | 2012-06-27 |
Family
ID=46289705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104411502A Pending CN102518675A (en) | 2011-12-26 | 2011-12-26 | Single supporting main shaft and bearing integrated solid retainer of high-power wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518675A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001221236A (en) * | 2000-02-07 | 2001-08-17 | Koyo Seiko Co Ltd | Tapered roller bearing |
| CN201963737U (en) * | 2010-12-29 | 2011-09-07 | 上海联合滚动轴承有限公司 | Retaining frame on large-sized wind power double-line tapered roller bearing |
| CN202468716U (en) * | 2011-12-26 | 2012-10-03 | 瓦房店轴承集团有限责任公司 | Integrated solid cage for high-power wind driven generator single-support main shaft bearing |
-
2011
- 2011-12-26 CN CN2011104411502A patent/CN102518675A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001221236A (en) * | 2000-02-07 | 2001-08-17 | Koyo Seiko Co Ltd | Tapered roller bearing |
| CN201963737U (en) * | 2010-12-29 | 2011-09-07 | 上海联合滚动轴承有限公司 | Retaining frame on large-sized wind power double-line tapered roller bearing |
| CN202468716U (en) * | 2011-12-26 | 2012-10-03 | 瓦房店轴承集团有限责任公司 | Integrated solid cage for high-power wind driven generator single-support main shaft bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120627 |