| 摘要 |
PURPOSE:To provide wind power generation device provided with a pitch control device maintaining satisfactory lubricating property for a long time by lubricating the pitch control with lubricating oil enclosed in a cover. CONSTITUTION:A pitch control 3a is lubricated with lubricating oil 11 enclosed in a cover 4. The lubricating oil 11 is not necessarily fully filled in the cover 4 so long as a jack shaft 1a is immersed in the lubricating oil. Thus, the lubricating oil 11 in the cover 4 is stirred by the rotaing jack shaft 1a, and until it flows over a spindle 1 through the jack shaft 1a, it lubricates jack shaft 1a as well as a slider 5, spring 6, etc. on the spindle 1. |
