Rotor blade or rotor blade segment for a wind turbine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F03D-001/06
B23P-011/00
출원번호
US-0223438
(2011-09-01)
등록번호
US-8888462
(2014-11-18)
우선권정보
DE-10 2010 046 518 (2010-09-22)
발명자
/ 주소
Klein, Hendrik
출원인 / 주소
Nordex Energy GmbH
대리인 / 주소
Walter Ottesen P.A.
인용정보
피인용 횟수 :
1인용 특허 :
6
초록
Rotor blade or rotor blade segment for a wind turbine, having at least one cable for fixing the rotor blade or rotor blade segment to a rotor hub or to a further rotor blade segment, wherein the at least one cable is redirected in a U-shaped manner within the rotor blade or rotor blade segment.
대표청구항▼
1. A rotor blade unit for a wind turbine having a rotor hub, the rotor blade unit comprising: a rotor blade;a cable configured to fix said rotor blade on the rotor hub; and,said cable having a section redirected in a U-shaped manner within said rotor blade. 2. The rotor blade unit of claim 1, wherei
1. A rotor blade unit for a wind turbine having a rotor hub, the rotor blade unit comprising: a rotor blade;a cable configured to fix said rotor blade on the rotor hub; and,said cable having a section redirected in a U-shaped manner within said rotor blade. 2. The rotor blade unit of claim 1, wherein said rotor blade defines an outer surface; and, said U-shaped section of said cable runs in said rotor blade at a uniform distance from said surface. 3. The rotor blade unit of claim 1, wherein said rotor blade includes a U-shaped cable duct through which said cable runs. 4. The rotor blade unit of claim 3, wherein said rotor blade has a wall; and, said U-shaped cable duct is embedded in said wall. 5. The rotor blade unit of claim 1, wherein: said rotor blade is made of a plastic material having a yield point;said cable is configured to apply a predetermined pre-tensioning in the mounted state of said rotor blade on said rotor hub;said plastic material of said rotor blade has contact surfaces in the area in which said cable is redirected in a U-shaped manner; and,said contact surfaces are so dimensioned that the surface pressure applied by said cable does not cause said yield point of said plastic material to be exceeded. 6. The rotor blade unit of claim 1, wherein said cable has ends and at least one of said ends of said cable has a cable end sleeve. 7. A rotor blade unit for a wind turbine having a rotor hub, the rotor blade unit comprising: a first rotor blade segment;a second rotor blade segment;said first and second rotor blade segments conjointly defining an interface;a first cable configured to attach said rotor blade segments to each other at said interface;said first cable having a section redirected in a U-shaped manner within at least one of said rotor blade segments;a second cable configured to attach said first rotor blade segment to the rotor hub; and,said second cable being redirected in a U-shaped manner within said first rotor blade segment. 8. The rotor blade unit of claim 7, wherein each of said rotor blade segments defines an outer surface; and, each of said U-shaped sections of said cables runs in the rotor blade segment corresponding thereto at a uniform distance from said surface. 9. The rotor blade unit of claim 7, wherein said first and second rotor blade segments include first and second U-shaped cable ducts, respectively, through which corresponding ones of said first and second cables run. 10. The rotor blade unit of claim 9, wherein said rotor blade segments have respective walls; and, said U-shaped cable ducts are embedded in corresponding ones of said walls. 11. The rotor blade unit of claim 7, wherein: said rotor blade segments are made of a plastic material having a yield point;said first cable is configured to apply a predetermined pre-tensioning to hold said first and second rotor blade segments together at said interface;said second cable is configured to apply a predetermined pre-tensioning in the mounted state of said first rotor blade segment on said rotor hub;said plastic material of said first and second rotor blade segments defines respective contact surfaces in the areas in which corresponding ones of said first and second cables are redirected in a U-shaped manner; and,said contact surfaces are so dimensioned that the surface pressure applied by said first and second cables does not exceed said yield point of said plastic material. 12. The rotor blade unit of claim 7, wherein each of said first and second cables has ends and at least one of said ends of each of said cables has a cable end sleeve. 13. A rotor blade for a wind turbine, the rotor blade comprising: a first rotor blade segment;a second rotor blade segment;said first and second rotor blade segments conjointly defining an interface;a cable configured to attach said rotor blade segments to each other at said interface;said cable having a first end, a second end and a middle section arranged between said first end and said second end;said middle section being redirected in a U-shaped manner within a first one of said rotor blade segments; and,said first and said second ends being anchored in the second one of said rotor blade segments. 14. The rotor blade of claim 13, wherein each of said rotor blade segments defines an outer surface; and, said U-shaped section of said cable runs in the rotor blade segment corresponding thereto at a uniform distance from said surface. 15. The rotor blade of claim 13, wherein said first one of said rotor blade segments includes a U-shaped cable duct through which said cable runs. 16. The rotor blade of claim 15, wherein said first one of said rotor blade segments has a wall; and, said U-shaped cable duct is embedded in said wall. 17. The rotor blade of claim 13, wherein: said rotor blade segments are made of a plastic material having a yield point;said cable is configured to apply a predetermined pre-tensioning to hold said first and second rotor blade segments together at said interface;said plastic material of at least one of said first and second rotor blade segments defines a contact surface in the area in which said cable is redirected in a U-shaped manner; and,said contact surface is so dimensioned that the surface pressure applied by said cable does not exceed said yield point of said plastic material. 18. The rotor blade of claim 13, wherein at least one of said first end and said second end of said cable has a cable end sleeve. 19. A rotor blade assembly for a wind turbine, the rotor blade assembly comprising: a rotor hub;a rotor blade;a cable having two ends;said cable being configured to fix said rotor blade on said rotor hub;said cable being redirected in a U-shaped manner inside said rotor blade; and,said two ends of said cable being anchored in or on said rotor hub. 20. A rotor blade assembly for a wind turbine, the rotor blade assembly comprising: a rotor hub;a rotor blade;a cable having first and second ends;said cable being configured to fix said rotor blade on said rotor hub;said cable being redirected in a U-shaped manner inside said rotor blade;said cable also being redirected in a U-shaped manner in or on said rotor hub;said first end of said cable being anchored in said rotor blade; and,said second end of said cable being anchored in or on said rotor hub. 21. A rotor blade assembly for a wind turbine, the rotor blade assembly comprising: a rotor hub;a rotor blade;a cable having first and second ends;said cable being configured to fix said rotor blade on said rotor hub;said cable being redirected in a U-shaped manner inside said rotor blade;said cable also being redirected in a U-shaped manner in or on said rotor hub;said cable being redirected in a U-shaped manner twice in one of said rotor blade and said rotor hub; and,said first and second ends of said cable being anchored in or on the other one of said rotor blade and said rotor hub. 22. A rotor blade assembly for a wind turbine, the rotor blade assembly comprising: a rotor hub;a first rotor blade segment;a second rotor blade segment;a cable having first and second ends and a middle section arranged between said first end and said second end;said cable being configured to fix said first rotor blade segment on said second rotor blade segment;said middle section being redirected in a U-shaped manner inside said first rotor blade segment; and,said first and said second ends of said cable being anchored in said second rotor blade segment. 23. A rotor blade assembly for a wind turbine, the rotor blade assembly comprising: a first rotor blade segment;a second rotor blade segment;a cable configured to fix said first rotor blade segment to said second rotor blade segment;said cable having a first end, a second end and a middle section arranged between said first end and said second end;said middle section being redirected in U-shaped manner in each of said first and second rotor blade segments;and,said first end being anchored in said first rotor blade segment and said second end being anchored in said second rotor blade segment. 24. A rotor blade assembly for a wind turbine, the rotor blade assembly comprising: a first rotor blade segment;a second rotor blade segment;a cable configured to fix said first rotor blade segment to said second rotor blade segment;said cable being redirected in U-shaped manner in each of said first and second rotor blade segments;said cable being redirected twice in one of said first and second rotor blade segments; and,said cable having first and second ends anchored in the other one of said first and second rotor blade segments. 25. A method for fixing a rotor blade on a rotor hub of a wind turbine, said method comprising the steps of: providing the rotor blade with a cable with first and second ends with said cable being configured to fix said rotor blade on the rotor hub; and, said cable being redirected in a U-shaped manner within said rotor blade;providing the rotor hub on which said rotor blade is to be fixed;arranging said rotor blade and said rotor hub in a designated mounting position;anchoring said first end of said cable in said rotor blade or in or on said rotor hub; and,anchoring said second end of said cable in the rotor blade or in or on said rotor hub. 26. The method of claim 25, wherein said second end of said cable is anchored with the following steps: generating a defined pretensioning when anchoring said second end of said cable; and,fixing said second end of said cable to one of said rotor blade and said rotor hub. 27. The method of claim 25, wherein said cable is redirected in a U-shaped manner in or on the rotor hub. 28. A method for fixing a rotor blade on a rotor hub of a wind turbine, the rotor blade including first and second rotor blade segments, said method comprising the steps of: providing said first rotor blade segment having a first cable having first and second ends with said first cable being configured to fix said first rotor blade segment on the rotor hub; and, said first cable being redirected in a U-shaped manner within said first rotor blade segment;providing the rotor hub on which said first rotor blade segment is to be fixed;providing said second rotor blade segment having a second cable having first and second ends with said second cable being configured to fix said second rotor blade segment on the first rotor blade segment; and, said second cable being redirected in a U-shaped manner within at least one of said first and second rotor blade segments;arranging said first and second rotor blade segments and said rotor hub in a designated mounting position;anchoring said first end of said first cable in said first rotor blade segment or in or on said rotor hub;anchoring said second end of said first cable in said first rotor blade segment or in or on said rotor hub;anchoring said first end of said second cable in said first rotor blade segment or in said second rotor blade segment; and,anchoring said second end of said second cable in said first rotor blade segment or in said second rotor blade segment. 29. The method of claim 28, wherein said second ends of said first and second cables are anchored with the following steps: generating a defined pretensioning when anchoring said second end of said first cable;fixing said second end of said first cable to one of said first rotor blade segment and said rotor hub;generating a defined pretensioning when anchoring said second end of said second cable; and,fixing said second end of said second cable in one of said first and second rotor blade segments. 30. The method of claim 28, wherein said first cable is redirected in a U-shaped manner in or on the rotor hub. 31. A method for fixing a first rotor blade segment of a wind turbine on a second rotor blade segment, said method comprising the steps of: providing the first rotor blade segment with a cable with first and second ends with said cable being configured to fix the first rotor blade segment on the second rotor blade segment; said cable having a middle section arranged between said first end and said second end; and, said middle section being redirected in a U-shaped manner within one of said rotor blade segments;providing the second rotor blade segment on which said first rotor blade segment is to be fixed;arranging said first rotor blade segment and said second rotor blade segment in a designated mounting position;anchoring said first end of said cable in said first or second rotor blade segment; and,anchoring said second end of said cable in said first or second rotor blade segment. 32. The method of claim 31, wherein said second end of said cable is anchored with the following steps: generating a defined pretensioning when anchoring said second end of said cable; and,fixing said second end of said cable to one of said first rotor blade segment and said second rotor blade segment.
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