Rotor blade, wind turbine and method for installing and producing a rotor blade

Patent metadata

Field	Value
Publication number	US-11215162-B2
Application number	US-201716304941-A
Country	US
Kind code	B2
Filing date	Jun 9, 2017
Priority date	Jun 10, 2016
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

A rotor blade, a wind turbine and a method for installing and producing a rotor blade. In particular, a rotor blade for a wind turbine having a longitudinal direction, a transverse direction, a thickness, and a pressure side and a suction side opposite the pressure side, comprising a front pressure-side spar cap and/or a rear pressure-side spar cap, a front suction-side spar cap and/or a rear suction-side spar cap, a load introduction device, which is arranged between at least one of the pressure-side spar caps and at least one of the suction-side spar caps, wherein the load introduction device has a load coupling device, which is arranged and designed so as to receive a lifting device passed through a lifting opening, a lifting opening is arranged on the pressure side and/or the suction side, and the lifting opening is arranged between the front pressure-side spar cap and the rear pressure-side spar cap in the transverse direction and/or between the front suction-side spar cap and the rear suction-side spar cap in the transverse direction.

First claim

The invention claimed is:

1. A rotor blade for a wind turbine comprising:
a root region and a blade tip, a longitudinal direction extending from the root region to the blade tip;
a leading edge and a trailing edge, a transverse direction extending from the leading edge to the trailing edge, a thickness that is orthogonal with respect to the longitudinal direction and orthogonally with respect to the transverse direction;
a pressure side and a suction side opposite the pressure side;
a front pressure-side spar cap and a rear pressure-side spar cap;
a front suction-side spar cap and a rear suction-side spar cap; and
first and second load introduction devices arranged between at least one of the front or rear pressure-side spar caps and at least one of the front or rear suction-side spar caps,
wherein each of the first and second load introduction devices has a load coupling device comprising lifting openings, respectively, wherein the lifting openings are arranged about a center of gravity of the rotor blade and configured to receive a lifting device,
wherein one or more of the lifting openings are arranged on at least one of: the pressure side or the suction side, and
wherein one or more of the lifting openings are arranged between one of:
the front pressure-side spar cap and the rear pressure-side spar cap in the transverse direction, or
the front suction-side spar cap and the rear suction-side spar cap in the transverse direction.

2. The rotor blade as claimed in claim 1 , comprising a front spar web and a rear spar web, wherein the first and second load introduction devices are arranged on one of the front spar web or the rear spar web.

3. The rotor blade as claimed in claim 1 , comprising:
a first transverse spacing between the front pressure-side spar cap and the rear pressure-side spar cap, or
a second transverse spacing between the front suction-side spar cap and the rear suction-side spar cap, wherein at least one of the first and second transverse spacings is equal to or greater than a dimension of the lifting openings in the transverse direction.

4. The rotor blade as claimed in claim 2 , wherein at least one of the first and second load introduction devices is arranged between the front spar web and the rear spar web in the transverse direction.

5. The rotor blade as claimed in claim 1 wherein a centroidal axis of the rotor blade is oriented substantially parallel to the longitudinal direction and extends through the first and second load introduction devices.

6. The rotor blade as claimed in claim 1 , wherein the lifting openings of the load coupling devices are arranged substantially orthogonally to the thickness.

7. The rotor blade as claimed in claim 5 , wherein the centroidal axis passes through one of the lifting openings of one of the load coupling devices.

8. The rotor blade as claimed in claim 1 , wherein an interspace between the front pressure-side spar cap, the rear pressure-side spar cap, the front suction-side spar cap, and the rear suction-side spar cap is filled at least partially with a first material.

9. The rotor blade as claimed in claim 1 , wherein each load coupling device comprises a plurality of lifting openings.

10. The rotor blade as claimed in claim 1 , wherein a rotor blade de-icing system is coupled to at least one of the first and second load introduction devices.

11. A wind turbine having at least one rotor blade as claimed in claim 1 .

12. A method for installing a rotor blade, comprising:
providing the rotor blade as claimed in claim 1 ;
passing a lifting device through the lifting openings;
securing the lifting device on the first and second load introduction devices; and
raising the rotor blade into an installation position by the lifting device.

13. A method comprising:
producing the rotor blade as claimed in claim 1 , the producing comprising:
forming a subassembly by:
connecting a first front spar web to the first and second load introduction devices; and
connecting a second rear spar web to the first and second load introduction devices;
wherein the front pressure-side spar cap, the front suction-side spar cap and the first front spar web form a front spar;
wherein the rear pressure-side spar cap, the rear suction-side spar cap and the second rear spar web form a rear spar; and

arranging the subassembly on a rotor blade element of the rotor blade.

14. The method as claimed in claim 13 , wherein the rotor blade element is an outer shell of the rotor blade.

15. The method as claimed in claim 12 , wherein securing the lifting device on the first and second load introduction devices comprises arranging lifting elements in the lifting openings and securing the lifting device on the lifting elements.

16. The rotor blade as claimed in claim 6 , wherein the load coupling devices are arranged substantially orthogonally to the longitudinal direction.

17. The rotor blade as claimed in claim 8 , wherein the first material is at least one of balsa wood, foam, polyethylene terephthalate, or polyvinyl chloride.

18. The rotor blade as claimed in claim 8 , wherein the first material has a lower density than a material of the front or rear pressure-side spar caps and the front or rear suction-side spar caps.

19. The method as claimed in claim 13 , wherein the first and second load introduction devices are arranged between at least one of the front or rear pressure-side spar caps and at least one of the front or rear suction-side spar caps.

Assignees

• Wobben Properties Gmbh

Inventors

• Rubner Florian

Classifications

• B66C1/108 Primary

  for lifting parts of wind turbines · CPC title

• Y02E10/72

  Wind turbines with rotation axis in wind direction · CPC title

• Y02B10/30

  Wind power · CPC title

• F05B2230/61

  using auxiliary equipment for lifting or holding · CPC title

• F03D13/10

  Assembly of wind motors; Arrangements for erecting wind motors · CPC title