Wind turbine blade lowering apparatus

摘要

The present invention relates to a wind turbine enabling a cost effective and easy attachment/replacement of rotor blades and to a method of attaching a rotor blade to a hub of a wind turbine. The wind turbine in accordance with the invention comprises a tower resting on a base, at least one rotor blade having a blade connector portion, a nacelle housing a shaft to which a hub is attached, the nacelle being mounted atop the tower. Said hub of the wind turbine comprises a plurality of hub connection flanges, each hub connection flange being adapted to be detachably connected to a blade connector portion of a rotor blade.

主权项

1. A wind turbine comprising:
a tower resting on a base, at least one rotor blade having a blade connector portion, a nacelle housing a shaft to which a hub is attached, the nacelle being mounted atop the tower, said hub comprising a plurality of hub connection flanges, each hub connection flange being adapted to be detachably connected to a blade connector portion of a rotor blade, a blade pulley system including at least one pulley and being detachably connected to the blade connector portion of a rotor blade, and a truss system, said truss system comprising a pulley beam including at least one pulley and two mounting beams, each mounting beam being detachably connected to a hub connection flange, thereby positioning the pulley beam above a further hub connection flange.