CN102506064A - Single-support main shaft bearing of wind generator integral solid cage structure - Google Patents
Single-support main shaft bearing of wind generator integral solid cage structure Download PDFInfo
- Publication number
- CN102506064A CN102506064A CN2011104414676A CN201110441467A CN102506064A CN 102506064 A CN102506064 A CN 102506064A CN 2011104414676 A CN2011104414676 A CN 2011104414676A CN 201110441467 A CN201110441467 A CN 201110441467A CN 102506064 A CN102506064 A CN 102506064A
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- Prior art keywords
- bearing
- integral type
- main shaft
- retainer
- shaft bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Rolling Contact Bearings (AREA)
- Wind Motors (AREA)
Abstract
A single-support main shaft bearing of a wind generator integral solid cage structure. The bearing structure is a double-row tapered roller bearing which comprises a double-raceway outer ring, two rows of rolling elements, two integral solid steel cages, and two inner rings; the integral solid steel cages are mounted on the raceways of the inner rings; a plurality of rolling elements are mounted in pocket holes of the integral solid steel cages; small end surfaces of the two inner rings are close to each other, and are parallelly mounted at the inner side of the outer ring; the cage is an integral solid steel cage structure. The invention replaces the application of a traditional two-point support bearing structure; according to the invention, a short transition section is used to separate the bearing from a gear case, and the bearing is directly connected with a cabin mainframe, and independently bears various loads of an impeller, such as axial force, radial force, and overturning moment. The arrangement provides a large power wind generator with a driving chain which has a compact structure, a light weight and strong rigidity, can prolong the service life of the driving chain, and improve the reliability of the wind generator.
Description
Technical fieldThe present invention relates to a kind of high-power wind-driven generator list supports main shaft bearing, concrete relate to a kind of single supports main shaft bearing that is applied to the wind-driven generator integral type solid cage structure of high-power wind-driven generator.
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 single supports main shaft bearing that adopts integral type, high-intensity steel retainer structure, and this bearing 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 single supports main shaft bearing of novel wind-driven generator integral type solid cage structure; This bearing structure is simple; Retainer adopts the integral type entity structure, has 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:
Single supports main shaft bearing of wind-driven generator integral type solid cage structure, bearing structure is a double-row conical bearing, is made up of an outer ring with double raceway, biserial rolling element, two integral type entity steel retainers and two inner rings; Integral type entity steel retainer is installed on the raceway of inner ring; Some rolling elements are installed in the pocket hole of integral type entity steel retainer; The small end face of two inner rings is close, and is installed on the inboard, outer ring side by side; Said retainer is an integral type entity steel retainer structure, comprises retainer matrix and some pockets hole.
Ladder-type structure is adopted in described pocket hole.
Described integral type entity steel retainer and inner ring form guide structure, utilize the rotation of inner ring large-flange guiding retainer.
Outer ring of the present invention has some mounting holes that match with the cabin mainframe, and the inner play of bearing is negative play.
Adopt the bearing of These characteristics, compare with existing bearing and have following beneficial effect:
Be applied to the main shaft bearing of high-power wind-driven generator; Its outside dimension is more than 2500mm; Carry the various load of impeller alone; Comprise axial force, radial force and tilting moment; Tradition adopts the bearing of 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 bearing that adopts integral type entity steel retainer, has overcome traditional pressing cage and column support type retainer galloping, problem that intensity is low effectively; Ladder-type structure is adopted in its 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; In sum; The present invention has replaced use tradition two point-supported bearing structures, and the present invention separates with gear-box through short changeover portion, and is directly connected on the mainframe of cabin; It carries the various load of impeller alone, comprises axial force, radial force and tilting moment.This high-power wind unit that is arranged as provides compact structure, in light weight and Transmitted chains that rigidity is strong, can prolong Transmitted chains working life and improves the blower fan reliability.
Description of drawings
Fig. 1 is a structural profile simplified schematic diagram of the present invention;
Fig. 2 is the structural profile simplified schematic diagram of integral type entity steel retainer;
Fig. 3 is that A is to stepped shaft pocket hole schematic representation.
Among the figure: 1, outer ring, 2, rolling element, 3, integral type entity steel retainer, 4, inner ring, 5, mounting hole, 6, the retainer matrix, 7, the pocket hole.
Embodiment
Specify the present invention below in conjunction with accompanying drawing:
As shown in Figure 1, the present invention is a double-row conical bearing, is made up of an outer ring with double raceway 1, biserial rolling element 2, two integral type entity steel retainers 3 and two inner rings 4; Integral type entity steel retainer 3 is installed on the raceway of inner ring 4; Some rolling elements 2 are installed in the pocket hole 7 of integral type entity steel retainer 3; The small end face of two inner rings 4 is close, and is installed on 1 inboard, outer ring side by side; Said retainer 3 is an integral type entity steel retainer structure, comprises retainer matrix 6 and some pockets hole 7.Inner ring 4 of the present invention links together with changeover portion, and outer ring 1 of the present invention has some mounting holes 5 that match with the cabin mainframe, the inner play of rear bearing is installed is negative play, has improved the rigidity and the bearing capacity of bearing.
As shown in Figure 2; Said retainer 3 is an integral type entity steel retainer structure; Comprise retainer matrix 6 and some pockets hole 7; 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 3, ladder-type structures are adopted in said pocket hole 7, ladder-type structure has guaranteed that rolling element 2 contacts with the good of pocket hole 7, have alleviated the weight of solid cage 3 own simultaneously, and then the revolution flexibility that has improved bearing.
Concrete assembly process of the present invention:
The first cover inner assembly at first is installed: (first) lies on the mountion plate with inner ring 4, and retainer 3 (first) is contained on inner ring 4 (first 's) the raceway, and rolling element 2 (several) is packed in retainer 3 (first 's) the pocket hole 7;
The second cover inner assembly then is installed: (second) lies on the mountion plate with inner ring 4, retainer 3 (second) is contained on the raceway of inner ring (second) 4, and rolling element (several) 2 is packed in retainer 3 (second 's) the pocket hole 7;
Then, outer ring with double raceway 1 is lain on the platform, with pack into from the upper end outside of outer ring 1 of the first cover inner assembly; Again the assembly parts of the outer ring 1 and the first cover inner assembly is installed in the outside of the second cover inner assembly.
In sum; The present invention has replaced use tradition two point-supported bearing structures, and the present invention separates with gear-box through short changeover portion, and is directly connected on the mainframe of cabin; It carries the various load of impeller alone, comprises axial force, radial force and tilting moment.This high-power wind unit that is arranged as provides compact structure, in light weight and Transmitted chains that rigidity is strong, can prolong Transmitted chains working life and improves the blower fan reliability.
Claims (4)
1. single supports main shaft bearing of wind-driven generator integral type solid cage structure; Bearing structure is a double-row conical bearing, is made up of an outer ring with double raceway (1), biserial rolling element (2), two integral type entity steel retainers (3) and two inner rings (4); Integral type entity steel retainer (3) is installed on the raceway of inner ring (4); Some rolling elements (2) are installed in the pocket hole of integral type entity steel retainer (3); The small end face of two inner rings (4) is close, and is installed on inboard, outer ring (1) side by side; Said retainer (3) is an integral type entity steel retainer structure, comprises retainer matrix (6) and some pockets hole (7).
2. single supports main shaft bearing of wind-driven generator integral type solid cage structure according to claim 1 is characterized in that: ladder-type structure is adopted in described pocket hole (7).
3. single supports main shaft bearing of wind-driven generator integral type solid cage structure according to claim 1; It is characterized in that: described integral type entity steel retainer (3) forms guide structure with inner ring (4), utilizes inner ring (4) large-flange guiding retainer (3) rotation.
4. single supports main shaft bearing of wind-driven generator integral type solid cage structure according to claim 1; It is characterized in that: outer ring of the present invention (1) has some mounting holes that match with the cabin mainframe (5), and the inner play of bearing is negative play.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104414676A CN102506064A (en) | 2011-12-26 | 2011-12-26 | Single-support main shaft bearing of wind generator integral solid cage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104414676A CN102506064A (en) | 2011-12-26 | 2011-12-26 | Single-support main shaft bearing of wind generator integral solid cage structure |
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| Publication Number | Publication Date |
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| CN102506064A true CN102506064A (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104414676A Pending CN102506064A (en) | 2011-12-26 | 2011-12-26 | Single-support main shaft bearing of wind generator integral solid cage structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317633A (en) * | 2015-11-26 | 2016-02-10 | 重庆望江工业有限公司 | Support and axial mounting play adjusting structure of wind generating set main bearing |
| CN107208609A (en) * | 2015-01-22 | 2017-09-26 | 维斯塔斯风力系统有限公司 | Wind turbine nacelle |
| CN108223566A (en) * | 2018-02-05 | 2018-06-29 | 洛阳新强联回转支承股份有限公司 | It is a kind of without the big cone angle double-row conical pivoting support of soft band |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001221236A (en) * | 2000-02-07 | 2001-08-17 | Koyo Seiko Co Ltd | Tapered roller bearing |
| CN201326518Y (en) * | 2008-12-24 | 2009-10-14 | 华锐风电科技有限公司 | Main shaft supporting mechanism of wind turbine using double-row back-to-back bearing |
| CN102094901A (en) * | 2010-12-09 | 2011-06-15 | 瓦房店轴承集团有限责任公司 | Sequential pocket solid cage of three-row cylindrical roller turntable bearing |
| CN202545569U (en) * | 2011-12-26 | 2012-11-21 | 瓦房店轴承集团有限责任公司 | Single-support spindle bearing of integrated solid retainer structure of wind driven generator |
-
2011
- 2011-12-26 CN CN2011104414676A patent/CN102506064A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001221236A (en) * | 2000-02-07 | 2001-08-17 | Koyo Seiko Co Ltd | Tapered roller bearing |
| CN201326518Y (en) * | 2008-12-24 | 2009-10-14 | 华锐风电科技有限公司 | Main shaft supporting mechanism of wind turbine using double-row back-to-back bearing |
| CN102094901A (en) * | 2010-12-09 | 2011-06-15 | 瓦房店轴承集团有限责任公司 | Sequential pocket solid cage of three-row cylindrical roller turntable bearing |
| CN202545569U (en) * | 2011-12-26 | 2012-11-21 | 瓦房店轴承集团有限责任公司 | Single-support spindle bearing of integrated solid retainer structure of wind driven generator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107208609A (en) * | 2015-01-22 | 2017-09-26 | 维斯塔斯风力系统有限公司 | Wind turbine nacelle |
| CN107208609B (en) * | 2015-01-22 | 2019-03-22 | 维斯塔斯风力系统有限公司 | Wind turbine nacelle |
| US10352306B2 (en) | 2015-01-22 | 2019-07-16 | Vestas Wind Systems A/S | Wind turbine nacelle |
| CN105317633A (en) * | 2015-11-26 | 2016-02-10 | 重庆望江工业有限公司 | Support and axial mounting play adjusting structure of wind generating set main bearing |
| CN105317633B (en) * | 2015-11-26 | 2018-07-13 | 重庆望江工业有限公司 | The adjustment structure of support and axially mounted clearance that wind driven generation set main shaft is held |
| CN108223566A (en) * | 2018-02-05 | 2018-06-29 | 洛阳新强联回转支承股份有限公司 | It is a kind of without the big cone angle double-row conical pivoting support of soft band |
| CN108223566B (en) * | 2018-02-05 | 2024-02-20 | 洛阳新强联回转支承股份有限公司 | Soft-belt-free large-cone-angle double-row tapered roller slewing bearing |
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Application publication date: 20120620 |