Lifter and method for handling a rotor blade, rotor blade for a wind generator and method for marking a rotor blade, system comprising a lifter and a rotor blade

摘要

A lifter and a method for handling of a rotor blade of a wind turbine are provided. Furthermore, a rotor blade for a wind generator and a method for marking the rotor blade and a system comprising a rotor blade and a lifter are provided. The lifter comprises at least one grabbing jaw having a pair of arms carrying pads for contacting an outer surface of the rotor blade in predetermined grabbing areas. Furthermore, the lifter comprises a detector for visual inspection of an invisible mark on a surface of the rotor blade. The at least one mark indicates a position of the at least one grabbing area.

主权项

1. A method of handling a rotor blade of a wind turbine, the method comprising the steps of:
a) generating an invisible mark on the surface of the rotor blade by applying a long term resistant invisible paint or label directly on the surface of the rotor blade that is invisible to the naked eye in daylight and indicative of a position and a contour of a grabbing area, b) detecting a displacement between a grabbing device and the grabbing area and the invisible mark which is indicative of the position and the contour of the grabbing area, wherein detection is performed using a detector for visual inspection, c) positioning the pad of a lifter in a grabbing area, d) grabbing the rotor blade by establishing a contact between the pad of the lifter and the grabbing area.