Apparat og fremgangsmåde til montering af vindmøllevinger på et vindmølletårn

摘要

An apparatus for mounting wind turbine blades on a tower and hub comprises first and second extendable arms 52 and 54 having a stowed and extended positions are provided on the tower. The arms are operated between the two positions by a load bearing arm actuation mechanism (Fig. 12) or a cable 80 attached to a blade supported on the arms. Fully extended, the arms are attached to the wind turbine blade in its connected position with the hub. A cable may be attached to the blade and the blade detached from the hub. The blade is then lowered on the arms 52 and 54 into a stowed position against the tower, secured and t for attachment. Blade root and hub fastener alignment guides are also disclosed. he cable released. The blades can be reattached by attaching the cable to the blade and lifting the blade in position. The arms pivot to support the blade in a position maintaining a correct orientation