| 摘要 |
PURPOSE:To prevent rotor blades and rotary devices from damage at a strong wind, by further providing a bearing mount, for supporting a nacelle, up-down movably to a tower. CONSTITUTION:A bearing mount 12 for supporting a nacelle 2 is further provided up-down movably to a tower 1. In this way, rotor blades 5 and their rotary device, if fixed by lowering the bearing mount 12 when blowing a strong wind, can be prevented from being damaged. |
