Patent ID: 8191878
Filing Date: 2012-06-05
Classification: B66C,F03D,Y02E

Abstract:
1. A mounting device for mounting or demounting a wind turbine blade to or from a hub which is located at a top end of a wind turbine tower, the mounting device comprising a sledge, the sledge comprising a support structure and a gripping structure, the support structure being adapted to releasably grip the wind turbine tower and to guide the sledge along an outer surface of the wind turbine tower between a bottom end position and a top end position of the tower, the gripping structure being adapted to provide a releasable fixation of the wind turbine blade in a fixed orientation relative to the gripping structure, wherein the sledge is adapted to be moved along the tower by a combination of the support structure and a cable connection to the top end, wherein the sledge is formed to enable reorientation of the turbine blade by transfer of torque from the sledge to the wind turbine tower, and wherein the support structure comprises rollers adapted to roll on the outer surface of the wind turbine tower.