LIFTING UNIT FOR LIFTING A ROTOR OF A WIND ENERGY INSTALLATION

摘要

What is envisaged is a lifting unit for lifting a rotor of a wind energy installation. The lifting unit has at least one first sling (100) for looping around a region of a rotor blade which is close to the rotor blade base on a rotor of the wind energy installation, at least one transverse strut (900), at least one first and second struts or sling elements (300, 400) and at least one first and second articulation units (200, 210). The at least one first and second struts or sling elements (300, 400) extend between the at least one first and second articulation units (200, 210) and the transverse strut (900). In addition, the lifting unit has at least one second sling (500), which has a first and a second sling element (510, 520) and a strut (530). The first ends of the first and second sling elements (510, 520) are fixed to the first and second articulation units (200, 210). The second sling (500) is configured so as to be arranged around a rotor blade tip.