WO2011110453A2 - Drehverbindung eines rotorblattes mit der rotornabe einer windkraftanlage - Google Patents
Drehverbindung eines rotorblattes mit der rotornabe einer windkraftanlage Download PDFInfo
- Publication number
- WO2011110453A2 WO2011110453A2 PCT/EP2011/053068 EP2011053068W WO2011110453A2 WO 2011110453 A2 WO2011110453 A2 WO 2011110453A2 EP 2011053068 W EP2011053068 W EP 2011053068W WO 2011110453 A2 WO2011110453 A2 WO 2011110453A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- bearing
- component
- blade
- rotor
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000470 constituent Substances 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the invention relates to a rotary joint of a rotor blade with the rotor hub of a wind turbine, with a designed as a large rolling bearing with a bearing inner ring and a bearing outer ring pivot bearing whose bearing ring is connected to the blade root of the rotor blade and the other bearing ring with the rotor hub, and formed with a as a gear transmission with a segmented sprocket and a pinion connected to the drive shaft of a servomotor blade angle adjustment, the sprocket arranged on the one bearing ring and the servomotor is attached to the connected to the other bearing ring component.
- Wind turbines with a horizontal rotor axis usually have a nacelle, which is rotatably mounted via an azimuth pivot bearing on a tower anchored in the ground via a foundation.
- a rotor shaft is rotatably mounted, which is the input side connected to a arranged outside the nacelle and usually three rotor blades bearing rotor hub and the output side via a transmission or directly to an arranged inside the nacelle electric generator.
- the rotor blades are in order its longitudinal axis rotatably mounted in the rotor hub.
- the rotor By a rotation of the rotor blades about their longitudinal axis in their feathered position, the rotor is largely torque-free and braked under the action of resistance moments automatically or by using a braking device to a standstill.
- large bearings such as double-row deep groove ball bearings are used, each having a bearing inner ring, a bearing outer ring and a plurality of circumferentially distributed between the bearing rings arranged rolling elements.
- One of the two bearing rings is connected via a screw with the blade root of the rotor blade and the other bearing ring corresponding to the rotor hub.
- the rotary bearing is designed as a large roller bearing, the bearing outer ring is bolted to the blade root of the rotor blade and the bearing inner ring with the rotor hub.
- the Blattwinkelver- position is formed as a gear transmission with an internally toothed ring gear and connected to the drive shaft of a servo motor pinion, wherein the teeth of the ring gear is incorporated over the entire circumference in the bearing inner ring, and the servomotor within the blade root of the rotor blade arranged and at a bearing flange of the blade root is screwed.
- a rotary joint of a rotor blade with the rotor hub of a wind turbine is known from WO 1999/023 384 A1.
- the pivot bearing is formed in all variants as a large roller bearing whose bearing inner ring is bolted to the blade root of the rotor blade and the bearing outer ring with the rotor hub.
- the blade angle adjustment of the embodiments according to the local figures 2 and 3 is designed as a gear transmission with an internally toothed ring gear and connected to the drive shaft of a servo motor pinion, wherein the teeth of the ring gear over the entire circumference is incorporated in the bearing inner ring, and the servo motor within the rotor hub is arranged and bolted to a hub-fixed bearing flange.
- toothing incorporated only over a limited circumferential area into a bearing ring leads to an increased and also asymmetrical distortion of the bearing ring, which requires an increased outlay in mechanical reworking, eg by straightening and fine grinding.
- the replacement of the entire rolling bearing is required in a damaged toothing of the segmented sprocket as in a fully toothed design.
- the invention is therefore based on the object to propose a rotary joint of a rotor blade with the rotor hub of a wind turbine of the type mentioned, which allows the use of a segmented ring gear with a lower manufacturing cost and a higher ease of service.
- the invention is based on the finding that the segmented toothed ring does not necessarily have to be a constituent part of one of the two bearing rings of the slewing bearing, but is first of all produced as a separate component and subsequently with the relevant one Bearing ring can be connected.
- the bearing ring in question can be made smaller without restricting its strength, whereby space and weight can be saved.
- the ServicePFkeit the rotary joint increases considerably, since the sprocket can now be replaced without disassembly of the large roller bearing and the rotor blade in case of damage to the teeth.
- the object of the invention is therefore achieved in conjunction with the features of the preamble of claim 1, characterized in that the sprocket component is part of a separate ring segment component, which is connected to the associated bearing ring and / or connected to the bearing ring member, and its Circumference largely corresponds to the angular range of the toothing.
- the invention is therefore based on a rotary joint of a rotor blade with the rotor hub of a wind turbine, which comprises a rotary bearing of the rotor blade in the rotor hub and a blade angle adjustment of the rotor blade relative to the rotor hub.
- the pivot bearing is designed as a large roller bearing with a bearing inner ring and a bearing outer ring, one bearing ring is connected to the blade root of the rotor blade and the other bearing ring with the rotor hub.
- the blade angle adjustment is designed as a gear transmission with a segmented sprocket and connected to the drive shaft of a servo motor pinion whose sprocket arranged on the one bearing ring and the servomotor is attached to the connected to the other bearing ring component.
- the ring segment component distributed circumferentially arranged through holes and the associated bearing ring with appropriately arranged threaded holes for pre-assembly of the ring segment component are provided on the bearing ring by means of screws.
- the ring segment component provided with the toothed ring can be preassembled on the slewing bearing and, together with this, inserted into the rotor hub and fastened thereto.
- the ring segment component For resilient attachment of the ring segment component this is advantageously provided with through holes, which are aligned with the through holes of the associated bearing ring and common connection of the ring segment component and the bearing ring with the relevant component, ie the rotor hub or the blade root of the rotor blade, are provided by means of threaded bolts. Since the usable pivot range of the rotor blades between the full load position and the feathered position is approximately 90 °, the circumferential dimension of the ring segment component and the ring gear suitably corresponds to an angle range between 90 ° and 120 °. To achieve a technically and economically effective production of such ring segment components, these are advantageously each cut out of a component originally made as a circumferentially completely toothed ring.
- the circumferential dimension of the ring segment component and the ring gear preferably corresponds to an angular range of 90 ° or 120 °. In this Case yields a circumferentially completely toothed ring without a waste four or three toothed ring segment components.
- Fig. 1 shows a bearing inner ring of a slewing bearing with a toothed
- FIG. 2 shows the bearing inner ring with the ring segment component according to FIG. 1 in an axial plan view according to the viewing direction A of FIG. 1, FIG.
- FIG. 3 is an enlarged radial sectional view of the bearing inner ring and the ring segment component according to the section line B - B of Fig. 2,
- Fig. 5 shows a known rotary joint of a rotor blade with the rotor hub of a wind turbine in a sectional view
- FIG. 6 is an enlarged detail view of the rotary joint according to FIG. 5 according to the detail D of FIG. 5.
- the rotary bearing is designed as a large roller bearing 4 'in the form of a double row deep groove ball bearing with a bearing inner ring 5' and a bearing outer ring 6.
- the bearing inner ring 5 ' is threaded over a plurality of threaded bolts 7, the circumferentially distributed in the blade root 8 of the rotor blade 2 arranged threaded transverse pin 9 and guided through corresponding through holes 10 of the bearing inner ring 5', screwed to the rotor blade 2.
- the bearing outer ring 6 is guided through a plurality of screws 1 1, which are distributed through circumferentially arranged on the bearing outer ring 6 through holes 12 and inserted into corresponding arranged in the housing edge 13 of the rotor hub 3 threaded holes 14, screwed to the rotor hub 3.
- the blade angle adjustment is formed as a gear transmission with a ring gear 15 'and connected to the drive shaft of a servo motor pinion.
- the sprocket 15 ' is presently formed as an internal toothing 16 which is incorporated in the bearing inner ring 5' and extends over the entire circumference. But it could also be provided an external toothing.
- the servo motor not shown, the pinion gear with the ring gear 15 'is permanently in meshing engagement, is disposed within the rotor hub 3 and fixed there at a suitable location.
- the rotary joint 1 of the invention differs from the described known solution in that the Sprocket 15 executed only over a limited circumferential angular range 17 of presently about 120 ° and part of a separate ring segment component 18, which is connected to the bearing inner ring 5, and the circumferential dimension largely corresponds to the angular range 17 of the internal teeth 16.
- the ring segment component 18 is provided with through holes 19 distributed circumferentially and the bearing inner ring 5 with correspondingly arranged threaded holes 20 for pre-assembly of the ring segment component 18 on the bearing inner ring 5 provided by means of screws 21.
- the annular segment component 18 provided with the toothed rim 15 can be preassembled on the slewing bearing and used together with the latter in the rotor hub 3 and fastened thereto.
- ring segment member 18 is provided with through holes 22 which are aligned with the through holes 10 of the bearing inner ring 5 and the common connection of the ring segment component 18 and the bearing inner ring 5 are provided with the blade root 8 of the rotor blade 2 by means of threaded bolts.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11706571A EP2545273A2 (de) | 2010-03-09 | 2011-03-02 | Drehverbindung eines rotorblattes mit der rotornabe einer windkraftanlage |
BR112012022295A BR112012022295A2 (pt) | 2010-03-09 | 2011-03-02 | conexão rotativa de uma pá de rotor com o cubo de rotor de uma usina de energia eólica. |
CN201180012857XA CN103403345A (zh) | 2010-03-09 | 2011-03-02 | 风力机组的转子叶片与转子毂的转动连接结构 |
US13/583,280 US20130039768A1 (en) | 2010-03-09 | 2011-03-02 | Rotary connection of a rotor blade to the rotor hub of a wind energy plant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010010639.9 | 2010-03-09 | ||
DE102010010639A DE102010010639A1 (de) | 2010-03-09 | 2010-03-09 | Drehverbindung eines Rotorblattes mit der Rotornabe einer Windkraftanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011110453A2 true WO2011110453A2 (de) | 2011-09-15 |
WO2011110453A3 WO2011110453A3 (de) | 2015-06-25 |
Family
ID=44023034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/053068 WO2011110453A2 (de) | 2010-03-09 | 2011-03-02 | Drehverbindung eines rotorblattes mit der rotornabe einer windkraftanlage |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130039768A1 (de) |
EP (1) | EP2545273A2 (de) |
CN (1) | CN103403345A (de) |
BR (1) | BR112012022295A2 (de) |
DE (1) | DE102010010639A1 (de) |
WO (1) | WO2011110453A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102581603A (zh) * | 2012-02-01 | 2012-07-18 | 新疆金风科技股份有限公司 | 机械手 |
CN103775489A (zh) * | 2012-10-22 | 2014-05-07 | Skf公司 | 用于船舶的螺旋桨或风力涡轮机的滚动轴承 |
EP2474735A3 (de) * | 2010-12-08 | 2014-12-31 | Vestas Wind Systems A/S | Montageanordnung für Verstellgetriebe |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2570560T3 (es) * | 2011-11-17 | 2016-05-19 | Vestas Wind Sys As | Turbina eólica que comprende un sistema de regulación de ángulo de paso de pala |
DE102011086785A1 (de) | 2011-11-22 | 2013-05-23 | Schaeffler Technologies AG & Co. KG | Wälzlager einer Windenergieanlage |
EP2623772A1 (de) * | 2012-02-06 | 2013-08-07 | Alstom Wind, S.L.U. | Windturbinenrotor |
ES2430763B1 (es) * | 2012-05-21 | 2014-10-01 | Gamesa Innovation & Technology S.L | Segmento dentado para el rodamiento de paso de un aerogenerador |
FR2997159B1 (fr) * | 2012-10-22 | 2016-11-25 | Skf Ab | Palier a roulement, notamment pour propulseur de navires ou pour eolienne |
DE102013210579B4 (de) * | 2013-06-06 | 2018-05-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Drehverbindung und verfahren zu deren herstellung |
ES2538417B1 (es) | 2013-12-19 | 2016-04-20 | Acciona Windpower, S.A. | Aerogenerador con sistema de cambio de paso de pala |
DE102014205816A1 (de) * | 2014-03-28 | 2015-10-01 | Aktiebolaget Skf | Lageranordnung zur drehbaren Lagerung eines Turbinenblattes an einer Turbinennabe |
EP3141747B1 (de) * | 2015-09-08 | 2020-09-02 | Siemens Gamesa Renewable Energy A/S | Verstärktes lager einer windturbine |
DE102016119958A1 (de) * | 2016-10-20 | 2018-04-26 | Wobben Properties Gmbh | Verstelleinrichtung für ein Rotorblatt einer Windenergieanlage sowie eine Windenergieanlage damit und Verfahren dafür |
ES2874048T3 (es) | 2016-10-24 | 2021-11-04 | Nordex Energy Spain S A | Turbina eólica y cojinete de paso de la turbina eólica |
JP6940238B2 (ja) * | 2016-11-23 | 2021-09-22 | ヴェスタス オフショア ウィンド エー/エス | 風力タービン構造部品を位置合わせする方法及びアセンブリ |
DE102017223614A1 (de) * | 2017-12-21 | 2019-06-27 | Thyssenkrupp Ag | Windkraftanlage, Rotorsystem, Verfahren zur Verwendung einer Windkraftanlage |
DE102018107172A1 (de) | 2018-03-26 | 2019-09-26 | Liebherr-Components Biberach Gmbh | Stellantrieb zum Verstellen des Pitchwinkels eines Rotorblatts einer Windkraftanlage sowie Windkraftanlage mit einem solchen Stellantrieb |
DE102018215961A1 (de) * | 2018-09-19 | 2020-03-19 | Thyssenkrupp Ag | Blattlagersystem für eine Windkraftanlage, Windkraftanlage, Verfahren zur Herstellung eines Blattlagersystems |
CN110242499B (zh) * | 2019-07-17 | 2022-11-11 | 北京金风科创风电设备有限公司 | 变桨驱动模组、叶轮系统、风力发电机组及运输方法 |
CN110744267B (zh) * | 2019-11-14 | 2022-05-24 | 无锡华能热能设备有限公司 | 一种风电设备用圆环及加工工艺 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19634059C1 (de) | 1996-08-23 | 1997-10-23 | Aerodyn Energiesysteme Gmbh | Rotorblatt für eine Windkraftanlage |
WO1999023384A1 (de) | 1997-11-04 | 1999-05-14 | Gerald Hehenberger | Verstellungsantrieb für rotorblätter von windkraftanlagen |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7331761B2 (en) * | 2005-11-10 | 2008-02-19 | Kaydon Corporation | Wind turbine pitch bearing and method |
US7811057B2 (en) * | 2007-01-03 | 2010-10-12 | General Electric Company | Methods and apparatus to facilitate lubrication of components |
DE102007008167C5 (de) * | 2007-02-14 | 2016-07-07 | Nordex Energy Gmbh | Windenergieanlage mit einer Rotornabe |
DE102007008166A1 (de) * | 2007-02-14 | 2008-08-21 | Nordex Energy Gmbh | Windenergieanlage mit einer Pitchdrehverbindung |
US8091199B2 (en) * | 2009-03-19 | 2012-01-10 | General Electric Company | Method to repair pitch control components |
US8092171B2 (en) * | 2009-09-30 | 2012-01-10 | General Electric Company | Systems and methods for assembling a pitch assembly for use in a wind turbine |
-
2010
- 2010-03-09 DE DE102010010639A patent/DE102010010639A1/de not_active Withdrawn
-
2011
- 2011-03-02 BR BR112012022295A patent/BR112012022295A2/pt not_active IP Right Cessation
- 2011-03-02 EP EP11706571A patent/EP2545273A2/de not_active Withdrawn
- 2011-03-02 CN CN201180012857XA patent/CN103403345A/zh active Pending
- 2011-03-02 WO PCT/EP2011/053068 patent/WO2011110453A2/de active Application Filing
- 2011-03-02 US US13/583,280 patent/US20130039768A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19634059C1 (de) | 1996-08-23 | 1997-10-23 | Aerodyn Energiesysteme Gmbh | Rotorblatt für eine Windkraftanlage |
WO1999023384A1 (de) | 1997-11-04 | 1999-05-14 | Gerald Hehenberger | Verstellungsantrieb für rotorblätter von windkraftanlagen |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2474735A3 (de) * | 2010-12-08 | 2014-12-31 | Vestas Wind Systems A/S | Montageanordnung für Verstellgetriebe |
US9261071B2 (en) | 2010-12-08 | 2016-02-16 | Vestas Wind Systems A/S | Mounting arrangement for pitch gear |
CN102581603A (zh) * | 2012-02-01 | 2012-07-18 | 新疆金风科技股份有限公司 | 机械手 |
CN102581603B (zh) * | 2012-02-01 | 2014-05-14 | 新疆金风科技股份有限公司 | 机械手 |
CN103775489A (zh) * | 2012-10-22 | 2014-05-07 | Skf公司 | 用于船舶的螺旋桨或风力涡轮机的滚动轴承 |
Also Published As
Publication number | Publication date |
---|---|
CN103403345A (zh) | 2013-11-20 |
DE102010010639A1 (de) | 2011-09-15 |
WO2011110453A3 (de) | 2015-06-25 |
BR112012022295A2 (pt) | 2017-10-31 |
US20130039768A1 (en) | 2013-02-14 |
EP2545273A2 (de) | 2013-01-16 |
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