| 摘要 |
The invention relates to an assembly for rotational support of a wind turbine blade (110) relative to a wind turbine hub (120). The assembly comprises an intermediate ring (140), axially positioned between the hub and the blade, whereby the blade is rotatably connected to the intermediate ring via a first bearing arrangement, and the intermediate ring (140) is rotatably connected to the hub via a second bearing arrangement. In a first mode of operation, the blade is rotated relative to the intermediate ring and to the hub via the first bearing arrangement (160, 163, 164, 130). In a second mode of operation, the intermediate ring and the blade are rotated relative to the hub via the second bearing arrangement (150, 130). |
