| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily achieve good workability, high rigidity and high strength of a fixing structure, in the blade pitch angle fixing structure for fixing a pitch angle of a blade connected to a hub of a wind turbine rotor so that the pitch angle may be varied. <P>SOLUTION: In the structure for a wind turbine rotor including a blade into which barrel nuts 6 are fitted at a plurality of parts distributed in a circumferential direction of a base end circumferential wall 1, wherein a hub 3 and an outer race part 2a of a bearing device 2 are fastened by bolts 5a distributed and arranged in a circumferential direction, and an inner race part 2b of the bearing device and the barrel nuts are fastened by the bolts 4a to fix the blade, a female thread 6a is provided at an end of a barrel nut exposed to an outer circumferential surface of a base end circumferential wall, and a fixing plate 8 including one fixing end fixed to the blade by one or the plurality of female threads and the bolt 9 screwed thereto and the other end fixed to the hub by one or the plurality of bolts out of the bolts fixing the hub and the outer race part and the nut 10 screwed thereto is applied. <P>COPYRIGHT: (C)2012,JPO&INPIT |
