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DE19634059C1 - Rotor blade for wind power plant - Google Patents

Rotor blade for wind power plant

Info

Publication number
DE19634059C1
DE19634059C1 DE19634059A DE19634059A DE19634059C1 DE 19634059 C1 DE19634059 C1 DE 19634059C1 DE 19634059 A DE19634059 A DE 19634059A DE 19634059 A DE19634059 A DE 19634059A DE 19634059 C1 DE19634059 C1 DE 19634059C1
Authority
DE
Germany
Prior art keywords
rotor
blade
rotor blade
blade connection
power plant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE19634059A
Other languages
German (de)
Inventor
Soenke Dipl Ing Siegfriedsen
Matthias Dipl Ing Schubert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerodyn Engineering GmbH
Original Assignee
AERODYN ENERGIESYSTEME GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AERODYN ENERGIESYSTEME GmbH filed Critical AERODYN ENERGIESYSTEME GmbH
Priority to DE19634059A priority Critical patent/DE19634059C1/en
Application granted granted Critical
Publication of DE19634059C1 publication Critical patent/DE19634059C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

Positioned on the blade connection (12) and acting on the rotor nave (10) is an adjustment drive (20). The rotary bearing point (14) may be fitted on the blade connection (12) is provided with an inner gearing (16). An adjustment motor (20) can be fitted on the blade connection and may be provided with a rotatably seated pinion (18) acting on the inner gearing of the rotary bearing point. The inner gearing may be a tooth part ring segment.

Description

Die Erfindung betrifft ein Rotorblatt für Windkraftanla­ gen mit einem zu dessen Befestigung an einer Rotornabe der Windkraftanlage dienenden Blattanschluß und einer Drehlagerung, deren einer Lagerring an die Rotornabe und deren anderer Lagerring an den Blattanschluß angesetzt ist.The invention relates to a rotor blade for wind turbines with one to attach it to a rotor hub the blade connection serving the wind turbine and one Rotary bearing, one of which has a bearing ring on the rotor hub and whose other bearing ring is attached to the blade connection is.

Die Rotorblätter insbesondere von für höhere Leistungen ausgelegten Windkraftanlagen sind um ihre Längsachse drehbar an der Nabe der Anlage gelagert, daher werden für die Blattverstellung die unterschiedlichsten Prinzi­ pien genutzt. The rotor blades especially from for higher performances designed wind turbines are about their longitudinal axis rotatably mounted on the hub of the system, therefore for the blade adjustment the most varied of princes pien used.  

Aus der DE 44 32 986 A1 ist eine Wälzlagerung für die Nabe eines Rotorblattes einer Windkraftanlage bekannt, die zweifach ausgebildet ist. Aus der DE 34 15 428 C2 ist ein Antrieb zum Verstellen des Einstellwinkels der Rotorblätter einer Windenergieanlage bekannt.DE 44 32 986 A1 describes a roller bearing for the Hub of a rotor blade of a wind turbine known which is dual. From DE 34 15 428 C2 is a drive for adjusting the setting angle the rotor blades of a wind turbine known.

Die Möglichkeit der Verstellung erlaubt die Verwendung von Rotorblättern, bei denen die Windausbeute höher ist als bei Anlagen mit nicht verstellbaren Rotorblättern. Zusätzlich können dadurch die Belastungen auf die Wind­ kraftanlage vermindert werden.The possibility of adjustment allows use of rotor blades where the wind yield is higher than in systems with non-adjustable rotor blades. In addition, this can reduce the loads on the wind power plant can be reduced.

In vielen Fällen ist es erwünscht, Anlagen, deren Blät­ ter nicht verstellbar sind, mit verstellbaren Rotorblät­ tern umzurüsten, um diese Vorteile zu nutzen.In many cases it is desirable to have plants whose leaves are not adjustable, with adjustable rotor blades retrofit to take advantage of these benefits.

Der Erfindung liegt die Aufgabe zugrunde, ein Rotorblatt zu schaffen, durch dessen Verwendung Windkraftanlagen ohne Umbau der Nabe umgerüstet werden können.The invention has for its object a rotor blade to create by using wind turbines can be converted without changing the hub.

Erfindungsgemäß wird diese Aufgabe durch eine Ausbildung des Rotorblatts mit einem über eine Drehlagerung an den Blattanschluß angesetzten, mit einer Innenverzahnung versehenen Lagerring und einem an den Blattanschluß in­ nen angesetzten und mit einem auf die Innenverzahnung der Lagerung wirkenden Ritzel versehenen Verstellmotor gelöst.According to the invention, this task is achieved through training of the rotor blade with a rotary bearing on the Blade connection attached, with an internal toothing provided bearing ring and one to the blade connection in attached and with one on the internal toothing the adjusting pinion provided with the bearing solved.

Weitere Vorteile der Erfindung ergeben sich aus folgen­ der Beschreibung eines bevorzugten Ausführungsbeispiels anhand der beigefügten Zeichnung. Further advantages of the invention result from the following the description of a preferred embodiment based on the attached drawing.  

Dabei zeigt die einzige Figur einen Schnitt durch eine Blattwurzel eines erfindungsgemäß ausgebildeten Rotors in einem an eine Rotornabe befestigten Zustand.The only figure shows a section through a Blade root of a rotor designed according to the invention in a state attached to a rotor hub.

Das nur zu einem kleinen Teil dargestellte Rotorblatt ist mit einem zu dessen Befestigung an der Rotornabe 10 der Windkraftanlage dienenden Blattanschluß 12 versehen, der über einen Drehkranz 14 mit einer Innenverzahnung 16 getragen wird, der an der Rotornabe mit Bolzen 22 befe­ stigt wird.The rotor blade shown only to a small extent is provided with a for its attachment to the rotor hub 10 of the wind turbine blade connection 12 , which is carried via a rotating ring 14 with an internal toothing 16, which is BEFE Stigt on the rotor hub with bolts 22 .

Ein an den Blattanschluß 12 in einer Lagerung 24 ange­ setzter Verstellmotor 20 ist mit einem Ritzel 18 verse­ hen, das auf die Innenverzahnung 16 wirkt.A to the blade terminal 12 in a bearing 24 is set actuator 20 is hen with a pinion 18 verses, which acts on the internal teeth 16 .

Durch die Anordnung des Verstellmotors im Inneren des Rotorblatts und der das Verstellen der Blätter erlauben­ den Lagerung als Teil des Rotorblatts ist eine Umrüstung einer Windkraftanlage ohne einen Umbau der Rotornabe 10 problemlos möglich.The arrangement of the adjusting motor in the interior of the rotor blade and the adjustment of the blades allow storage as part of the rotor blade, so that a wind turbine can be retrofitted without having to convert the rotor hub 10 .

Durch die erfindungsgemäßen Rotorblätter kann eine Fein­ justierung an die örtlichen Gegebenheiten des Aufstell­ ortes noch bei bereits montierter Windkraftanlage vorge­ nommen werden.Due to the rotor blades according to the invention, a fine adjustment to the local conditions of the installation Locations still pre-installed with the wind turbine already installed be taken.

Durch die von den Windverhältnissen abhängige Feinju­ stierung der Rotorblätter kann eine optimale Einstellung für verschiedene Windgeschwindigkeiten erreicht werden. Optimalerweise kann dadurch ein ca. 5% größerer Jahres­ energieertrag erreicht werden.Due to the Feinju depending on the wind conditions The rotor blades can be optimally adjusted can be achieved for different wind speeds. Optimally this can result in an approx. 5% larger year energy yield can be achieved.

Claims (4)

1. Rotorblatt für Windkraftanlagen, mit einem zu des­ sen Befestigung an die Rotornabe (10) der Windkraft­ anlage dienenden Blattanschluß (12), und einer Dreh­ lagerung (14), deren einer Lagerring an die Rotornabe (10) und deren anderer Lagerring an den Blattanschluß (12) angesetzt ist, gekennzeichnet durch einen an den Blattanschluß (12) angesetzten, auf die Rotornabe (10) wirkenden Verstellantrieb (20).1. rotor blade for wind turbines, with a to the sen attachment to the rotor hub ( 10 ) of the wind power plant serving blade connection ( 12 ), and a rotary bearing ( 14 ), one bearing ring on the rotor hub ( 10 ) and the other bearing ring on the Blade connection ( 12 ) is attached, characterized by an adjustment drive ( 20 ) attached to the blade connection ( 12 ) and acting on the rotor hub ( 10 ). 2. Rotorblatt nach Anspruch 1, gekennzeichnet durch eine Drehlagerung (14), die an den Blattanschluß (12) angesetzt und mit einer Innenverzahnung (16) versehen ist.2. Rotor blade according to claim 1, characterized by a rotary bearing ( 14 ) which is attached to the blade connection ( 12 ) and is provided with an internal toothing ( 16 ). 3. Rotorblatt nach Anspruch 1 oder 2, gekennzeichnet durch einem an den Blattanschluß (12) angesetzten und mit einem auf die Innenverzahnung (16) der Drehlagerung wirkenden Ritzel (18) versehenen Verstellmotor (20).3. Rotor blade according to claim 1 or 2, characterized by a to the blade connection ( 12 ) and provided with a on the internal toothing ( 16 ) of the rotary bearing pinion ( 18 ) provided adjusting motor ( 20 ). 4. Rotorblatt nach einem der Ansprüche 2 oder 3, da­ durch gekennzeichnet, daß die Innenverzahnung ein Zahn­ teilringsegment ist.4. Rotor blade according to one of claims 2 or 3, there characterized in that the internal toothing is a tooth is partial ring segment.
DE19634059A 1996-08-23 1996-08-23 Rotor blade for wind power plant Expired - Fee Related DE19634059C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19634059A DE19634059C1 (en) 1996-08-23 1996-08-23 Rotor blade for wind power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19634059A DE19634059C1 (en) 1996-08-23 1996-08-23 Rotor blade for wind power plant

Publications (1)

Publication Number Publication Date
DE19634059C1 true DE19634059C1 (en) 1997-10-23

Family

ID=7803474

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19634059A Expired - Fee Related DE19634059C1 (en) 1996-08-23 1996-08-23 Rotor blade for wind power plant

Country Status (1)

Country Link
DE (1) DE19634059C1 (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999023384A1 (en) * 1997-11-04 1999-05-14 Gerald Hehenberger Drive mechanism for adjusting the rotor blades of wind power installations
WO2000009885A1 (en) * 1998-08-13 2000-02-24 Neg Micon A/S A method and a device for adjusting the pitch and stopping the rotation of the blades of a wind turbine
WO2000061942A1 (en) * 1999-04-14 2000-10-19 Neg Micon A/S Device for adjusting the pitch of the blades of a wind turbine and a method for stopping the rotation of the main shaft
DE10011464C1 (en) * 2000-03-10 2001-08-16 Aloys Wobben Storage of an adjustable rotor blade of a wind turbine
EP1286048A1 (en) * 2001-08-20 2003-02-26 GE- Wind- Energy GmbH Device for adjustment of rotor blades of the rotor in a wind power system
WO2003019004A1 (en) 2001-08-25 2003-03-06 Aloys Wobben Lubrication of a pitch angle adjusting device of a rotor blade of a windmill
EP1596064A2 (en) * 2004-05-11 2005-11-16 REpower Systems AG Blade pitch adjustment system for wind turbine
WO2006032438A1 (en) * 2004-09-23 2006-03-30 Nordex Energy Gmbh Method for operating a device for adjusting a blade setting angle, and adjusting device
EP1647708A1 (en) * 2004-10-14 2006-04-19 General Electric Company Pitch drive system for a wind turbine
DE202005015774U1 (en) * 2005-10-07 2007-02-15 Liebherr-Werk Biberach Gmbh Actuator for adjusting the angle of attack of a rotor blade
WO2007098759A3 (en) * 2006-02-28 2007-11-08 Vestas Wind Sys As A wind turbine rotor, a rotation controlling mechanism and a method for controlling at least one blade of a wind turbine rotor
DE102008013926A1 (en) * 2008-03-12 2009-09-17 Vensys Energy Ag Device for adjusting the angle of attack of a rotor blade of a wind turbine
WO2011110453A2 (en) 2010-03-09 2011-09-15 Schaeffler Technologies Gmbh & Co. Kg Rotary connection of a rotor blade to the rotor hub of a wind energy plant
WO2011064070A3 (en) * 2009-11-26 2011-11-17 Ssb Wind Systems Gmbh & Co. Kg Rotor for a wind power plant
EP2458200A1 (en) * 2010-11-30 2012-05-30 Alstom Wind, S.L.U. Wind turbine rotor comprising a pitch bearing mechanism and a method of repair therefore
DE102014205689A1 (en) 2014-03-27 2015-10-01 Schaeffler Technologies AG & Co. KG Four point contact bearings
EP1596063B1 (en) 2004-05-11 2016-09-28 Senvion GmbH Wind turbine with bent rotor blades
DE102016208051A1 (en) * 2016-05-10 2017-11-16 Wobben Properties Gmbh Wind turbine rotor blade, and wind turbine with selbigem

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415428C2 (en) * 1984-04-25 1992-02-20 Liebherr-Aero-Technik Gmbh, 8998 Lindenberg, De
DE4432986A1 (en) * 1994-05-18 1995-11-23 Imo Ind Momentenlager Stoll & Vane blade hub for rotor wheel of wind generator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415428C2 (en) * 1984-04-25 1992-02-20 Liebherr-Aero-Technik Gmbh, 8998 Lindenberg, De
DE4432986A1 (en) * 1994-05-18 1995-11-23 Imo Ind Momentenlager Stoll & Vane blade hub for rotor wheel of wind generator

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999023384A1 (en) * 1997-11-04 1999-05-14 Gerald Hehenberger Drive mechanism for adjusting the rotor blades of wind power installations
WO2000009885A1 (en) * 1998-08-13 2000-02-24 Neg Micon A/S A method and a device for adjusting the pitch and stopping the rotation of the blades of a wind turbine
WO2000061942A1 (en) * 1999-04-14 2000-10-19 Neg Micon A/S Device for adjusting the pitch of the blades of a wind turbine and a method for stopping the rotation of the main shaft
AU2001235488B2 (en) * 2000-03-10 2004-07-08 Aloys Wobben Bearing for an adjustable rotor blade on a wind energy plant
DE10011464C1 (en) * 2000-03-10 2001-08-16 Aloys Wobben Storage of an adjustable rotor blade of a wind turbine
WO2001069081A1 (en) 2000-03-10 2001-09-20 Aloys Wobben Bearing for an adjustable rotor blade on a wind energy plant
US6783326B2 (en) 2001-08-20 2004-08-31 General Electric Company Means for adjusting the rotor blade of a wind power plant rotor
DE10140793A1 (en) * 2001-08-20 2003-03-06 Gen Electric Device for adjusting the rotor blade of a rotor of a wind turbine
EP1286048A1 (en) * 2001-08-20 2003-02-26 GE- Wind- Energy GmbH Device for adjustment of rotor blades of the rotor in a wind power system
US7077630B2 (en) 2001-08-25 2006-07-18 Aloys Wobben Lubrication of a pitch angle adjusting device of a rotor blade of a windmill
DE10141667A1 (en) * 2001-08-25 2003-03-13 Aloys Wobben Device for rotating two components against each other
WO2003019004A1 (en) 2001-08-25 2003-03-06 Aloys Wobben Lubrication of a pitch angle adjusting device of a rotor blade of a windmill
AU2002333509B2 (en) * 2001-08-25 2005-04-21 Aloys Wobben Lubrication of a pitch angle adjusting device of a rotor blade of a windmill
EP1596064A3 (en) * 2004-05-11 2011-08-31 REpower Systems AG Blade pitch adjustment system for wind turbine
EP1596064A2 (en) * 2004-05-11 2005-11-16 REpower Systems AG Blade pitch adjustment system for wind turbine
DE102004023773B3 (en) * 2004-05-11 2005-11-17 Repower Systems Ag Wind turbine
EP1596063B1 (en) 2004-05-11 2016-09-28 Senvion GmbH Wind turbine with bent rotor blades
DE102004046260A1 (en) * 2004-09-23 2006-04-06 Nordex Energy Gmbh Method for operating a device for adjusting a blade pitch and an adjustment
DE102004046260B4 (en) * 2004-09-23 2007-05-16 Nordex Energy Gmbh Method for operating a device for adjusting a blade pitch and an adjustment
WO2006032438A1 (en) * 2004-09-23 2006-03-30 Nordex Energy Gmbh Method for operating a device for adjusting a blade setting angle, and adjusting device
US7866946B2 (en) 2004-09-23 2011-01-11 Nordex Energy Gmbh Method for operating a device to vary a blade setting angle, and a varying device
EP1647708A1 (en) * 2004-10-14 2006-04-19 General Electric Company Pitch drive system for a wind turbine
DE202005015774U1 (en) * 2005-10-07 2007-02-15 Liebherr-Werk Biberach Gmbh Actuator for adjusting the angle of attack of a rotor blade
WO2007098759A3 (en) * 2006-02-28 2007-11-08 Vestas Wind Sys As A wind turbine rotor, a rotation controlling mechanism and a method for controlling at least one blade of a wind turbine rotor
CN101395368B (en) * 2006-02-28 2011-05-25 维斯塔斯风力系统有限公司 A wind turbine rotor, a rotation controlling mechanism and a method for controlling at least one blade of a wind turbine rotor
US7854592B2 (en) 2006-02-28 2010-12-21 Vestas Wind Systems A/S Wind turbine rotor, a rotation controlling mechanism and a method for controlling at least one blade of a wind turbine rotor
DE102008013926A1 (en) * 2008-03-12 2009-09-17 Vensys Energy Ag Device for adjusting the angle of attack of a rotor blade of a wind turbine
US8684693B2 (en) 2008-03-12 2014-04-01 Vensys Energy Ag Device for adjusting the angle of attack of a rotor blade of a wind power plant
DE102008013926B4 (en) * 2008-03-12 2019-07-25 Vensys Energy Ag Device for adjusting the angle of attack of a rotor blade of a wind turbine
WO2011064070A3 (en) * 2009-11-26 2011-11-17 Ssb Wind Systems Gmbh & Co. Kg Rotor for a wind power plant
US9255568B2 (en) 2009-11-26 2016-02-09 Ssb Wind Systems Gmbh & Co. Kg Rotor for a wind turbine
WO2011110453A2 (en) 2010-03-09 2011-09-15 Schaeffler Technologies Gmbh & Co. Kg Rotary connection of a rotor blade to the rotor hub of a wind energy plant
CN103403345A (en) * 2010-03-09 2013-11-20 谢夫勒科技股份两合公司 Rotary connection of a rotor blade to the rotor hub of a wind energy plant
WO2011110453A3 (en) * 2010-03-09 2015-06-25 Schaeffler Technologies AG & Co. KG Rotary connection of a rotor blade to the rotor hub of a wind energy plant
DE102010010639A1 (en) 2010-03-09 2011-09-15 Schaeffler Technologies Gmbh & Co. Kg Rotary connection of a rotor blade with the rotor hub of a wind turbine
WO2012072627A1 (en) * 2010-11-30 2012-06-07 Alstom Wind, S.L.U. Wind turbine rotor
US9759197B2 (en) 2010-11-30 2017-09-12 Alstom Renewable Technologies Wind turbine rotor
EP2458200A1 (en) * 2010-11-30 2012-05-30 Alstom Wind, S.L.U. Wind turbine rotor comprising a pitch bearing mechanism and a method of repair therefore
DE102014205689A1 (en) 2014-03-27 2015-10-01 Schaeffler Technologies AG & Co. KG Four point contact bearings
DE102016208051A1 (en) * 2016-05-10 2017-11-16 Wobben Properties Gmbh Wind turbine rotor blade, and wind turbine with selbigem

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AERODYN ENGINEERING GMBH, 24768 RENDSBURG, DE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20130301