Lifting system and method for lifting rotor blades of wind turbines
First Claim
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1. A lifting system for lifting rotor blades of wind turbines, comprising:
- a plurality of frame structures, wherein each frame structure is configured to support a rotor blade,a lifting structure which is attachable to a lifting device, anda number of lifting connectors being configured to connect a pack of frame structures to the lifting structure.
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Abstract
A lifting system for lifting rotor blades of wind turbines includes a plurality of frame structures each being configured to support a rotor blade. Additionally, the lifting system includes a lifting structure which is attachable to a lifting device, and a number of lifting connectors configured to connect a pack of frame structures to the lifting structure. Furthermore, a method for lifting rotor blades of wind turbines by using a lifting device and a method for installation of rotor blades of wind turbines are provided.
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Citations
16 Claims
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1. A lifting system for lifting rotor blades of wind turbines, comprising:
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a plurality of frame structures, wherein each frame structure is configured to support a rotor blade, a lifting structure which is attachable to a lifting device, and a number of lifting connectors being configured to connect a pack of frame structures to the lifting structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for lifting rotor blades of wind turbines by using a lifting device, wherein a frame structure is attached to each rotor blade such that the frame structure supports the rotor blade, the method comprising:
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packing a plurality of frame structures together to build a pack of frame structures, attaching a lifting structure to the lifting device, connecting the pack of frame structures to the lifting structure with lifting connectors, and lifting the pack of frame structures with the rotor blades by lifting the lifting structure with the lifting device. - View Dependent Claims (14, 15)
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16. A method for installation of rotor blades of wind turbines, wherein, prior to the installation, a frame structure is attached to each rotor blade such that the frame structure supports the rotor blade, the method comprising:
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lifting each rotor blade separately out of a frame structure, installing the rotor blades on a rotor hub of the wind turbine, and placing each empty frame structure on a handling frame, preferably a handling frame of a nacelle of a wind turbine.
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Specification