CN101858313B - Wind generating set and variable blade bearing thereof - Google Patents
Wind generating set and variable blade bearing thereof Download PDFInfo
- Publication number
- CN101858313B CN101858313B CN2010102019748A CN201010201974A CN101858313B CN 101858313 B CN101858313 B CN 101858313B CN 2010102019748 A CN2010102019748 A CN 2010102019748A CN 201010201974 A CN201010201974 A CN 201010201974A CN 101858313 B CN101858313 B CN 101858313B
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- bearing
- ring
- pitch variable
- variable bearings
- generating set
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- 239000002002 slurry Substances 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 6
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 30
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000001050 lubricating effect Effects 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 description 15
- 239000004519 grease Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 230000007774 longterm Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000003319 supportive effect Effects 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
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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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
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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
Abstract
The invention discloses a variable blade bearing for a wind generating set. The variable blade bearing comprises a bearing cone (22), a bearing cup (21), a ball (23) and a sealing ring (24), wherein the sealing ring (24) is fixed in the bearing cone (22) or the bearing cup (21), arranged at the joint of the bearing cone (22) and the bearing cup (21), located at two ends of the variable blade bearing. The variable blade bearing further comprises a pressing part (25), and the pressing part (25) is fixed in the bearing cone (22) or the bearing cup (21) and tightly presses the outer side of the sealing ring (24). The variable blade bearing has favorable sealing effects and longer service life, and can ensure the lubricating effect of a lubricating system for a longer time. The invention also discloses a wind generating set comprising the variable blade bearing.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of pitch variable bearings that is used for wind power generating set.The invention still further relates to a kind of wind power generating set that comprises above-mentioned pitch variable bearings.
Background technique
Along with the fast development of China's economic construction, electric energy is increasing to the influence of economic construction and people's life, and wind-power electricity generation is as a kind of attention that also more and more receives people in the multiple generation mode.
Wind-power electricity generation is exactly that the kinetic energy of keeping watch is transformed into mechanical energy; Be converted into mechanical energy a kind of generation mode of electric energy again; In order to improve generating efficiency; Wind power plant is generally built the outdoor of wind resource rich in, and utilizes wind generating unit-wind power generating set to realize the conversion of wind energy to electric energy.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical wind power generating set in the existing technology.
As shown in Figure 1, wind power generating set of the prior art comprises wind wheel 13, generator 12 and tower tube 11, in the working procedure; Wind acts on the blade 131 of wind wheel 13; Produce aerodynamic moment, the root of blade 131 passes to wheel hub with moment of torsion, and then drives gear and the running shaft rotation of generator in main shaft, the gearbox; Produce electric energy, tower tube 11 is mainly used in the wind wheel 13 and generator 12 that supports wind power generating set.
In the working procedure,, and then influence the quality of the ability of generating electricity because the wind speed of natural wind if the state of the blade of wind power generating set is constant all the time, will inevitably make the rotating speed of input constantly change in variation constantly; Constant basically in order to guarantee the active force that wind affacts on the blade; And then the rotating speed substantially constant of assurance input; Just need change the angle that facings the wind of the blade 131 of wind power generating set according to the size of wind speed, become slurry bearing 132 and be provided with in order to realize above-mentioned target; When wind speed changed, the bearing inner race 22 that becomes slurry bearing 132 rotated down in the effect that becomes the slurry control system, drives blade rotation, realized the change at the angle that facings the wind of blade, guaranteed the constant input of rotating speed, improved the generate electricity stability of ability of wind power generating set.
Yet, because wind power generating set generally is be installed on the wind resource rich outdoor, such as on the high mountain, sea etc.; Make that the working environment that becomes the slurry bearing is also relatively more abominable, the effect of complicated active force and the effect that temperature in a big way (40 ℃ to 70 ℃) changes are also being born in the effect of not only bearing dust storm; Having caused becoming slurry bearing ratio is easier to damage; And wind power generating set is overhauled difficulty, in order to prolong the working life that becomes the slurry bearing throughout the year seven, 80 meters high aerial work; Operated by rotary motion has the pitch variable bearings lubrication system in the existing technology, to improve the working environment that becomes the slurry bearing.
But problems such as in the long-term using process, lubrication system can occur that the grease addition is excessive, oil pump failure, pipeline rupture and oil nozzle inefficacy; In case occur that the grease addition is excessive, grease is aging or oil at low temperature sclerosis etc. can cause the problem of grease flow difficulties; Will make the bearing pressure inside increase, thereby cause rubber seal to break away from seal groove, seal failure; Sand and dust get into and become the slurry bearing, finally cause lubrication failure.
Therefore, how to improve the sealing effect of seal ring, and then improve the lubrication effect of lubrication system, prolong the working life that becomes the slurry bearing, just become the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of pitch variable bearings, this pitch variable bearings has the better seal effect, can guarantee the lubrication effect of lubrication system for a long time, has long working life.Another object of the present invention provides a kind of wind power generating set that comprises above-mentioned pitch variable bearings.
For solving the problems of the technologies described above; The present invention provides a kind of pitch variable bearings that is used for wind power generating set, comprises bearing inner race, bearing outer ring, ball and is fixed in said bearing inner race or the seal ring of said bearing outer ring, and said seal ring is arranged at the joint of bearing inner race and bearing outer ring; And be positioned at the two ends of said pitch variable bearings; Also comprise compacting part, said compacting part is fixed in said bearing inner race or said bearing outer ring, and is pressed in the outside of said seal ring.
Preferably, said compacting part is a hold-down ring.
Preferably, said hold-down ring comprises a plurality of hold-down ring sections.
Preferably, said hold-down ring has platy structure.
Preferably, said hold-down ring has staircase structural model.
Preferably, said compacting part perhaps is adhered to said pitch variable bearings through welding, riveted joint, screw connection.
Preferably, said compacting part is the metal compaction ring.
For solving the problems of the technologies described above, the present invention also provides a kind of wind power generating set, comprises like above-mentioned each described pitch variable bearings.
The pitch variable bearings that is used for wind power generating set provided by the present invention; Comprise bearing inner race, bearing outer ring, ball and be fixed in bearing inner race or the seal ring of bearing outer ring; Seal ring is arranged at the joint of bearing inner race and bearing outer ring, and is positioned at the two ends of pitch variable bearings, also comprises compacting part; Compacting part is fixed in bearing inner race or bearing outer ring, and is pressed in the outside of seal ring.Like this, in long-term using process, break down, cause the fatten amount excessive even become the lubrication system of slurry bearing; Problems such as grease is aging, hardening at subcritical temerature perhaps occur, make the grease flow difficulties, when the bearing internal pressure increased, the outside of seal ring was owing to receive the effect of compacting part; All the time be in the inside of seal groove, prevented the disengaging of seal ring, keep sealing effect; It is inner to have prevented that effectively sand and dust from getting into bearing, has guaranteed lubrication effect, has prolonged the working life of pitch variable bearings.It is thus clear that the seal ring of pitch variable bearings provided by the present invention only seals, and no longer plays a supportive role; Even losing efficacy through the long-term back seal ring that uses; Because there is the pressuring action of compacting part in its outside, there is the pressure effect of lubricant grease the inboard, and seal ring still can be brought into play seal action preferably; And then the assurance lubrication, satisfy the demand of pitch variable bearings than the long life.
In a kind of preferred implementation, the compacting part that is used for the pitch variable bearings of wind power generating set provided by the present invention is a hold-down ring, and the area of contact of hold-down ring and seal ring is bigger, and bigger clamping force can be provided, and improves to compress effect.
The beneficial effect of wind power generating set provided by the present invention and the beneficial effect of pitch variable bearings are similar, repeat no more at this.
Description of drawings
Fig. 1 is the structural representation of a kind of typical wind power generating set in the existing technology;
The structural representation of the pitch variable bearings that Fig. 2 is provided for a kind of embodiment of the present invention;
Fig. 3 is the structural representation of second kind of pitch variable bearings that embodiment provided of the present invention;
The structural representation of the pitch variable bearings that Fig. 4 is provided for the third embodiment of the present invention.
Embodiment
Core of the present invention provides a kind of pitch variable bearings, and this pitch variable bearings has the better seal effect, can guarantee the lubrication effect of lubrication system for a long time, has long working life.Another core of the present invention provides a kind of wind power generating set that comprises above-mentioned pitch variable bearings.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 2 to Fig. 4, the structural representation of the pitch variable bearings that Fig. 2 is provided for a kind of embodiment of the present invention; Fig. 3 is the structural representation of second kind of pitch variable bearings that embodiment provided of the present invention; The structural representation of the pitch variable bearings that Fig. 4 is provided for the third embodiment of the present invention.
In a kind of embodiment; The pitch variable bearings that is used for wind power generating set provided by the present invention comprises bearing inner race 22, bearing outer ring 21, is arranged at the ball 23 between bearing inner race 22 and the bearing outer ring 21 and is positioned at the two ends that become the slurry bearing, and is fixed in the seal ring 24 of bearing inner race 22 or bearing outer ring 21; Seal ring 24 is arranged at the joint of bearing inner race 22 and bearing outer ring 21; Entering bearing with the leakage that prevents lubricant grease and sand and dust is inner, further, also comprises compacting part 25; Compacting part 25 is fixed in bearing inner race 22 or bearing outer ring 21, and is pressed in the outside of seal ring 24.
For the effect that compresses of the seal ring 24 that guarantees to be positioned at the bearing two ends, above-mentioned compacting part 25 can be two groups, correspondingly, is arranged at the two ends of pitch variable bearings respectively, thereby to the seal ring 24 at pitch variable bearings two ends pressuring action is provided all; For describing conveniently, in the place that need not distinguish bearing inner race 22 and bearing outer ring 21, the two is referred to as race ring below.
Particularly, in order to guarantee the connection reliability of compacting part 25, can compacting part 25 be fixed in the race ring that becomes the slurry bearing through modes such as welding, riveted joints; In order to carry out the dismounting of compacting part 25 as required, can also compacting part 25 be connected through screw or mode such as bonding is fixed in pitch variable bearings.Certainly, adopt other can realize that compacting part 25 and the reliable ways of connecting of race ring also are fine.
Generally, be fixed in bearing inner race 22 owing to be installed on the seal ring 24 of pitch variable bearings first end, the seal ring 24 that is installed on pitch variable bearings second end is fixed in bearing outer ring 21; Therefore, when the concrete connection of carrying out compacting part 25, as shown in Figure 2; Can the compacting part 25 that be positioned at pitch variable bearings first end also be fixed in bearing inner race 22 equally; To be positioned at the pitch variable bearings second end compacting part 25 and also be fixed in bearing outer ring 21, thereby, not only can realize the fixing of compacting part 25 easily; And make compacting part 25 all the time with seal ring 24 motions, guaranteed to compress effect.
Particularly, first end of pitch variable bearings as herein described can be the upper end of the bearing shown in the figure, and second end of pitch variable bearings can be the lower end of the bearing shown in the figure.
Certainly; Seal ring 24 being installed on pitch variable bearings first end is fixed in bearing inner race 22; The seal ring 24 that is installed on pitch variable bearings second end is fixed under the situation of bearing outer ring 21; As shown in Figure 3, also can the compacting part 25 that be positioned at pitch variable bearings first end be arranged at bearing outer ring 21, the compacting part 25 that will be positioned at pitch variable bearings second end is fixed in bearing inner race 22.At this moment, compacting part 25 can compress seal ring 24 equally, and on the other hand, compacting part 25 can also form labyrinth sealing with seal ring 24, improves sealing effect.
Further; As shown in Figure 4; Can also the compacting part 25 of above-mentioned dual mode be used in combination; Promptly comprise first compacting part 251 that moves with seal ring 24 all the time, comprise second compacting part 252 that does not move all the time again, compress effect and sealing effect thereby further improved with seal ring 24.
Moreover the compacting part 25 that is positioned at the pitch variable bearings two ends also can have various structure, such as: first end is that above-mentioned first compacting part, 251, the second ends are above-mentioned second compacting part 252, and at this moment, the two can all be fixed in bearing inner race 22.Certainly, compacting part 25 can also be installed through alternate manner, and its concrete mode should not receive the restriction of this paper.
Can find out that pitch variable bearings provided by the present invention in long-term using process, breaks down even become the lubrication system of slurry bearing; It is excessive the fatten amount to occur, problems such as grease is aging, hardening at subcritical temerature perhaps occur, makes the grease flow difficulties; When the bearing internal pressure increased, the outside of seal ring 24 can not break away from seal groove owing to receive the effect of compacting part 25 under the effect of bearing internal pressure; All the time be in the inside of seal groove, prevented the disengaging of seal ring 24 effectively, kept sealing effect; It is inner to have prevented that sand and dust from getting into bearing, has guaranteed lubrication effect, has prolonged the working life of pitch variable bearings.
It is thus clear that 24 of the seal rings of pitch variable bearings provided by the present invention seal, and no longer play a supportive role; Even losing efficacy through the long-term back seal ring 24 that uses; Because there is the pressuring action of compacting part 25 in its outside, there is the pressure effect of lubricant grease the inboard, and seal ring 24 still can be brought into play seal action preferably; And then the assurance lubrication, satisfy the demand of pitch variable bearings than the long life.
In a kind of embodiment, the compacting part 25 of pitch variable bearings provided by the present invention can be hold-down ring.The compacting part 25 of ring structure is similar with the shape of pitch variable bearings and seal ring 24, and the area of contact of hold-down ring and seal ring 24 is bigger, and bigger clamping force can be provided, and improves to compress effect.
Because the size of pitch variable bearings is bigger, the size of seal ring 24 that correspondingly is used for pitch variable bearings is also bigger, and therefore the difficulty when the processing hold-down ring is bigger, for easy to process, improves the up-to-standard rate of processing, and hold-down ring can be made up of a plurality of hold-down ring sections; Simultaneously, make hold-down ring be divided into the multistage setting, can also cut down finished cost, can on a board-like material, process multistage hold-down ring section, if directly process hold-down ring then possibly cause the waste of lot of materials.
Particularly, as shown in Figure 2, hold-down ring can have platy structure; Certainly, hold-down ring also can have staircase structural model, and is as shown in Figure 3.
Hold-down ring can also have other structures, as long as can realize that pressuring action all is fine, generally speaking, compresses effect in order to improve, and the shape of hold-down ring shape general and seal ring 24 adapts.
In course of working, can at first process hold-down ring with platy structure, then tabular hold-down ring is further processed ledge structure through modes such as punching presses, compress effect of requirement to satisfy to improve.
In order to compress on the basis of effect in assurance, prolong the working life of compacting part 25, compacting part 25 provided by the present invention can specifically be selected metallic material for use, and promptly compacting part 25 can be the metal compaction ring.
Except above-mentioned pitch variable bearings, the present invention also provides a kind of wind power generating set that comprises above-mentioned pitch variable bearings, and other each several part structures of wind power generating set please refer to existing technology, and this paper repeats no more.
More than wind power generating set provided by the present invention and pitch variable bearings thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (8)
1. pitch variable bearings that is used for wind power generating set; Comprise bearing inner race (22), bearing outer ring (21), ball (23) and be fixed in said bearing inner race (22) or the seal ring (24) of said bearing outer ring (21), said seal ring (24) is arranged at the joint of bearing inner race (22) and bearing outer ring (21), and is positioned at the two ends of said pitch variable bearings; It is characterized in that; Also comprise compacting part (25), said compacting part (25) is fixed in said bearing inner race (22) or said bearing outer ring (21), and is pressed in the outside of said seal ring (23); Said compacting part (25) is two groups, and is arranged at the two ends of pitch variable bearings respectively;
Two groups of said compacting parts (25) are arranged on the same or different race rings with its corresponding said seal ring (24) respectively; And two groups of said compacting parts (25) are arranged at respectively on bearing inner race (22) and the bearing outer ring (21), and said race ring is bearing inner race (22) and bearing outer ring (21).
2. the pitch variable bearings that is used for wind power generating set according to claim 1 is characterized in that, said compacting part (24) is a hold-down ring.
3. the pitch variable bearings that is used for wind power generating set according to claim 2 is characterized in that, said hold-down ring comprises a plurality of hold-down ring sections.
4. according to claim 2 or the 3 described pitch variable bearings that are used for wind power generating set, it is characterized in that said hold-down ring has platy structure.
5. according to claim 2 or the 3 described pitch variable bearings that are used for wind power generating set, it is characterized in that said hold-down ring has staircase structural model.
6. according to each described change slurry bearing that is used for wind power generating set of claim 1 to 3, it is characterized in that said compacting part (25) is through welding, riveted joint, screw connection or be adhered to said pitch variable bearings.
7. according to each described change slurry bearing that is used for wind power generating set of claim 1 to 3, it is characterized in that said compacting part (25) is the metal compaction ring.
8. a wind power generating set is characterized in that, comprises like each described change slurry bearing of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102019748A CN101858313B (en) | 2010-06-10 | 2010-06-10 | Wind generating set and variable blade bearing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102019748A CN101858313B (en) | 2010-06-10 | 2010-06-10 | Wind generating set and variable blade bearing thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101858313A CN101858313A (en) | 2010-10-13 |
| CN101858313B true CN101858313B (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102019748A Active CN101858313B (en) | 2010-06-10 | 2010-06-10 | Wind generating set and variable blade bearing thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101858313B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016097446A1 (en) * | 2014-12-16 | 2016-06-23 | Laulagun Bearings, S.A. | Sealing means for bearing of aero-generator |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097882B (en) * | 2010-12-15 | 2013-07-31 | 新疆金风科技股份有限公司 | Sealing element, sealing method and wind-driven generator |
| CN102720766A (en) * | 2012-07-02 | 2012-10-10 | 北京京冶轧机轴承制造有限公司 | Turntable bearing |
| CN106594065B (en) * | 2016-12-27 | 2019-07-05 | 北京金风科创风电设备有限公司 | Bearing and variable pitch bearing of wind generating set |
| CN107917137A (en) * | 2017-12-12 | 2018-04-17 | 洛阳新能轴承制造有限公司 | A kind of water proof type pitch variable bearings |
| CN111648926B (en) * | 2019-03-04 | 2022-09-13 | 中车株洲电力机车研究所有限公司 | Variable-pitch bearing oil collecting device of wind turbine generator |
| CN113586600B (en) * | 2021-07-23 | 2022-07-22 | 江苏大学 | Novel double-layer dustproof and leakproof sealed turntable bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7481620B2 (en) * | 2004-10-29 | 2009-01-27 | Ab Skf | Wind power plant |
| CN101684841A (en) * | 2008-09-26 | 2010-03-31 | 上海联合滚动轴承有限公司 | Pitch bearing used on wind driven generator |
| CN101196211B (en) * | 2008-01-02 | 2010-12-01 | 文鉴恒 | High reliability decussation roller turntable bearing for megawatt level wind power generation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3706396B2 (en) * | 1994-05-13 | 2005-10-12 | 三菱重工業株式会社 | Windmill wing |
| WO2010017820A2 (en) * | 2008-08-13 | 2010-02-18 | Vestas Wind Systems A/S | Wind turbine rotor and method of calibrating rotor blade pitch |
-
2010
- 2010-06-10 CN CN2010102019748A patent/CN101858313B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7481620B2 (en) * | 2004-10-29 | 2009-01-27 | Ab Skf | Wind power plant |
| CN101196211B (en) * | 2008-01-02 | 2010-12-01 | 文鉴恒 | High reliability decussation roller turntable bearing for megawatt level wind power generation |
| CN101684841A (en) * | 2008-09-26 | 2010-03-31 | 上海联合滚动轴承有限公司 | Pitch bearing used on wind driven generator |
Non-Patent Citations (1)
| Title |
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| JP特开平7-310645A 1995.11.28 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016097446A1 (en) * | 2014-12-16 | 2016-06-23 | Laulagun Bearings, S.A. | Sealing means for bearing of aero-generator |
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| Publication number | Publication date |
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| CN101858313A (en) | 2010-10-13 |
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Owner name: BEIJING JINGYE BEARING CO., LTD. Free format text: FORMER NAME: JINGYE MILL BEARING MANUFACTURE CO., LTD., BEIJING |
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Address after: 102600 Daxing District, Beijing Huang Village street, No. 5 Patentee after: Beijing Jingye bearing Limited by Share Ltd Address before: 102600 Daxing District, Beijing Huang Village street, No. 5 Patentee before: Beijing Jingye Bearing Manufacture For Rolling Mills Co.,Ltd. |
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Application publication date: 20101013 Assignee: Jiangsu jingyei sea wind power bearing manufacturing Co. Assignor: Beijing Jingye bearing Limited by Share Ltd Contract record no.: 2013990000346 Denomination of invention: Wind generating set and variable blade bearing thereof Granted publication date: 20120530 License type: Exclusive License Record date: 20130626 |
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Effective date of registration: 20170120 Address after: 224499 Funing Economic Development Zone, Jiangsu, Huayuan Road, No. 68, No. Patentee after: Jiangsu jingyei sea wind power bearing manufacturing Co. Address before: 102600 Daxing District, Beijing Huang Village street, No. 5 Patentee before: Beijing Jingye bearing Limited by Share Ltd |
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Effective date of registration: 20180523 Address after: 102627 4 floor, 2 building, No. 4 Daxing District Garden Road, Beijing, 1 unit 509 Patentee after: Beijing Jing Ye post dimensional wind power technology development Co., Ltd. Address before: 224499 Huayuan Road Economic Development Zone, Yancheng City, Jiangsu, 68 Huayuan Road No. 68 Patentee before: Jiangsu jingyei sea wind power bearing manufacturing Co. |
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Effective date of registration: 20200103 Address after: 102600, 5, Yu Sheng street, Huangcun Town, Beijing, Daxing District Patentee after: Beijing Jingye bearing Limited by Share Ltd Address before: 102627 4 floor, 2 building, No. 4 Daxing District Garden Road, Beijing, 1 unit 509 Patentee before: Beijing Jing Ye post dimensional wind power technology development Co., Ltd. |
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Denomination of invention: Wind generating set and variable blade bearing thereof Effective date of registration: 20200624 Granted publication date: 20120530 Pledgee: Beijing finance Company limited by guarantee Pledgor: BEIJING JINGYE BEARING Co.,Ltd. Registration number: Y2020110000009 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
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Assignee: JIANGSU JINGYE OFFSHORE WIND POWER BEARING MANUFACTURING Co.,Ltd. Assignor: BEIJING JINGYE BEARING Co.,Ltd. Contract record no.: 2013990000346 Date of cancellation: 20210222 |