DE10330733A1 - Rotor blade for wind turbines - Google Patents
Rotor blade for wind turbines Download PDFInfo
- Publication number
- DE10330733A1 DE10330733A1 DE10330733A DE10330733A DE10330733A1 DE 10330733 A1 DE10330733 A1 DE 10330733A1 DE 10330733 A DE10330733 A DE 10330733A DE 10330733 A DE10330733 A DE 10330733A DE 10330733 A1 DE10330733 A1 DE 10330733A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor blade
- shells
- blade according
- edge
- spring
- 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.)
- Withdrawn
Links
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000003292 glue Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001012 protector Effects 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
-
- 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
-
- 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
- F05B2230/00—Manufacture
- F05B2230/20—Manufacture essentially without removing material
- F05B2230/24—Manufacture essentially without removing material by extrusion
-
- 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
- F05B2230/00—Manufacture
- F05B2230/60—Assembly methods
- F05B2230/604—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins
- F05B2230/608—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins for adjusting the position or the alignment, e.g. wedges or excenters
-
- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- 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
- F05B2250/00—Geometry
- F05B2250/10—Geometry two-dimensional
- F05B2250/13—Geometry two-dimensional trapezial
- F05B2250/132—Geometry two-dimensional trapezial hexagonal
-
- 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
- F05B2260/30—Retaining components in desired mutual position
-
- 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
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the 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
Abstract
Rotorblatt für Windenergieanlagen aus miteinander verbundenen Halbschalen (10, 12), bei dem wenigstens eine der Halbschalen (10; 12) Ausnehmungen (14) zur Aufnahme von Einpaßabschnitten (18) aufweist.Rotor blade for wind turbines of interconnected half shells (10, 12), wherein at least one of the half shells (10, 12) has recesses (14) for receiving Einpaßabschnitten (18).
Description
Die Erfindung betrifft ein Rotorblatt für Windenergieanlagen nach dem Oberbegriff des Hauptanspruches.The The invention relates to a rotor blade for wind turbines after Generic term of the main claim.
Rotorblätter werden üblicherweise aus GFK-Verbundwerkstoffen hergestellt, wobei zwei Halbschalen in Formen aus glasfaserverstärktem Kunststoff geformt werden und die beiden Halbschalen anschließend verklebt werden. Dabei stellt sich das Problem, dass während der Jahre, in denen die Rotorblätter an den Windkraftanlagen in Betrieb sind, durch die auf sie ausgeübten mechanischen Belastungen die Klebverbindungen nach längerer Standzeit in kleinen Bereichen Spannungsrisse bekommen, in die Wasser eindringen kann. Dies ist unerwünscht, da glasfaserverstärkter Kunststoff Wasser aufnehmen kann und dabei quillt.Rotor blades are usually made of FRP composites, with two half shells in Molds made of glass fiber reinforced plastic be shaped and then glued the two shells become. This raises the problem that during the years in which the rotor blades on wind turbines are in operation due to the mechanical forces exerted on them Load the adhesive bonds after a long service life in small Get into areas of stress cracks, into which water can penetrate. This is undesirable because glass fiber reinforced Plastic can absorb water and swells it.
Die Erfindung hat sich daher zur Aufgabe gestellt, ein Rotorblatt zu schaffen, das weniger zur Spaltbildung neigt.The Invention has therefore set itself the task of a rotor blade create less prone to cracking.
Erfindungsgemäß wird dieses Problem durch mit einem Rotorblatt mit den Merkmalen des Hauptanspruches gelöst. Die Unteransprüche geben bevorzugte Ausführungsformen der Erfindung wieder.According to the invention this Problem by having a rotor blade with the features of the main claim solved. The dependent claims give preferred embodiments the invention again.
Insbesondere wird vorgeschlagen, an den Halbschalen Ausnehmungen zur Aufnahme von Einpaßabschnitten, Kantenbereichen der anderen Halbschale oder separaten Profilen, vorzusehen. Diese Kantenbereiche können an einer gegenüberliegenden Halbschale realisiert werden, durch sogenannte Federkanten, oder durch Formschlusselemente an beiden Halbschalen, die ineinander passen, oder zur Aufnahme von separaten Federstrangprofilen dienen.Especially It is proposed to recesses for receiving the half-shells of fitting sections, Edge regions of the other half shell or separate profiles, provided. These edge areas can be at an opposite Half shell can be realized by so-called spring edges, or by positive-locking elements on both half-shells, the one inside the other fit, or serve to accommodate separate spring strand profiles.
Insbesondere wird vorgeschlagen, die Ausnehmungen mit trapezförmigem Querschnitt zu versehen, so dass in zwei einander gegenüberliegenden trapezförmigen Ausnehmungen ein sechseckiges Federstrangprofil einlegbar ist. Dabei werden rechtwinklige Ecken vermieden (also die unerwünschter punktueller Übertragung von Lasten an den Kanten). Dennoch wird durch gerade Seitenbereiche der definierten Kleberauftrag ermöglicht.Especially it is proposed to provide the recesses with trapezoidal cross section, so that in two opposite trapezoidal recesses a hexagonal spring strand profile can be inserted. This will be right-angled Corners avoided (ie the unwanted selective transmission loads on the edges). Nevertheless, it is through even side areas the defined adhesive application allows.
Weiter wird vorgeschlagen, „T"-förmige Feder- oder Strangprofile auf die Außenkanten aufzusetzen, bzw. bündig mit diesen in die Endbereiche des Klebespaltes der beiden Halbschalen einzulassen, um so den Klebspalt selbst vor den Witterungseinflüssen zu schützen.Further it is proposed to use 'T' shaped spring or extruded profiles on the outer edges set up, or flush with these in the end regions of the adhesive gap of the two half-shells so as to adhere the adhesive gap even against the weather protect.
Weitere Merkmale und Vorteile ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispieles anhand der beigefügten Zeichnung. Dabei zeigt:Further Features and advantages will become apparent from the following description a preferred embodiment with the attached Drawing. Showing:
Das
in der
Vorteilhafterweise
wird nicht nur, wie in der
Es ist jedoch auch möglich, einen Rundfederkern zu verwenden, der in Form einer langen Stange mit zylindrischen Dimensionen in entsprechende Rundnuten einpasst. Diese Rundnuten sind jedoch vergleichsweise schwieriger in die Halbschalen der Rotorblätter einzuarbeiten als die Trapeznuten.However, it is also possible to use a round spring core, which fits in the form of a long rod with cylindrical dimensions in corresponding round grooves. These Rundnuten are however comparatively more difficult in the Halbscha len of the rotor blades than the trapezoidal grooves.
Weiter wird vorgeschlagen, zusätzlich zu den vorangehenden Maßnahmen und/oder als ausschließliche an der Vorderseite angeordnete Klebehilfe einen Kantenschutz vorzusehen, der in nicht mehr mittig im Rotorblattmantel angeordnete Nuten, sondern über bis zur Vorderkante offene Nuten einpasst und die Nutdimensionen mit Kantenabschnitten überlappt, um so insbesondere das Eindringen von Wasser in die Klebefuge zu vermeiden, aber auch mechanische Belastungen von der Klebefuge fern zu halten, die beispielsweise beim Auftreffen der Klebefuge auf härte Objekte auftreten können.Further is proposed in addition to the preceding measures and / or as exclusive arranged on the front adhesive aid to provide edge protection, the not centrally located in the rotor blade shell grooves, but over to the Front edge of open grooves fits and overlaps the groove dimensions with edge sections, in particular the penetration of water into the glue joint avoid, but also mechanical loads away from the glue joint to hold, for example, when hitting the glue line hardness objects may occur.
Es muß dabei berücksichtigt werden, dass an den Außenbereichen die Flügel einer Windkraftanlage mit annähernd Schallgeschwindigkeit durch die Luft schneiden können.It must be there considered be that on the outside the wings a wind turbine with approximate Speed of sound through the air.
In
der
Durch dieses „Einsenken" des Kantenschutzes werden die aerodynamischen Verhältnisse in besonders guter Weise gewahrt.By this "sinking" of the edge protection be the aerodynamic conditions maintained in a particularly good manner.
In
den
Ebenso
wie bei den in Bezug auf
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10330733A DE10330733A1 (en) | 2003-07-07 | 2003-07-07 | Rotor blade for wind turbines |
EP04738860A EP1642025A1 (en) | 2003-07-07 | 2004-07-06 | Rotor blade for wind turbines |
PCT/DE2004/001431 WO2005005825A1 (en) | 2003-07-07 | 2004-07-06 | Rotor blade for wind turbines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10330733A DE10330733A1 (en) | 2003-07-07 | 2003-07-07 | Rotor blade for wind turbines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10330733A1 true DE10330733A1 (en) | 2005-02-17 |
Family
ID=34041672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10330733A Withdrawn DE10330733A1 (en) | 2003-07-07 | 2003-07-07 | Rotor blade for wind turbines |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1642025A1 (en) |
DE (1) | DE10330733A1 (en) |
WO (1) | WO2005005825A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2265760B1 (en) * | 2005-03-31 | 2008-01-16 | GAMESA INNOVATION & TECHNOLOGY, S.L. | SHOVEL FOR WIND GENERATORS. |
CN101242922B (en) | 2005-08-10 | 2011-04-06 | 新东工业株式会社 | Method and device for molding upper and lower casting molds |
US7824592B2 (en) * | 2006-09-22 | 2010-11-02 | General Electric Company | Bond line forming method |
US7740453B2 (en) | 2007-12-19 | 2010-06-22 | General Electric Company | Multi-segment wind turbine blade and method for assembling the same |
US8171633B2 (en) | 2007-12-19 | 2012-05-08 | General Electric Company | Method for assembling a multi-segment wind turbine blade |
US7909576B1 (en) * | 2010-06-24 | 2011-03-22 | General Electric Company | Fastening device for rotor blade component |
CN102338044A (en) * | 2010-07-14 | 2012-02-01 | 陈文渊 | Fan blade structure of wind power generation device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2659444A (en) * | 1949-06-21 | 1953-11-17 | Autogiro Co Of America | Molded aircraft sustaining rotor blade |
DE2658876C3 (en) * | 1976-12-24 | 1983-11-10 | Hütter, Ulrich, Prof. Dr.-Ing., 7312 Kirchheim | Shell bodies, for example hydrofoils or rotor blades, in composite construction |
DE3014347C2 (en) * | 1980-04-15 | 1983-05-26 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Process for the production of foam core-supported, fiber-reinforced plastic moldings such as blades, rotor blades, etc., of great length and width |
US4339230A (en) * | 1980-04-22 | 1982-07-13 | Hercules Incorporated | Bifoil blade |
-
2003
- 2003-07-07 DE DE10330733A patent/DE10330733A1/en not_active Withdrawn
-
2004
- 2004-07-06 EP EP04738860A patent/EP1642025A1/en not_active Withdrawn
- 2004-07-06 WO PCT/DE2004/001431 patent/WO2005005825A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP1642025A1 (en) | 2006-04-05 |
WO2005005825A1 (en) | 2005-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8139 | Disposal/non-payment of the annual fee |