| 摘要 |
Wind power station, which comprises a vertical tower (1), a rotor that comprises a hub part (18) and blades (16) that is fitted to the top end of the tower and that is aligned into the wind and rotated by the wind, a rotor shaft (11), which transmits rotating motion to a generator (12, 13, 14) connected to the aforementioned shaft in a direct-drive power station and to a gear box in a geared power station, and also a revolving frame (10) that is fitted to the top end of the tower (1) on bearings so as to rotate around the vertical axis (17), in which frame the rotor shaft (11) is also mounted on bearings. For mounting the revolving frame (10) on bearings onto the top part of the tower, the top part of the tower (1) comprises a first bearing (5) or (20) that mainly bears at least the vertical load coming from the revolving frame (10), as well as a second bearing (9) or (19) disposed at a distance H from the aforementioned bearing, in which case one of the bearings (9), (19) bears mainly the radial load coming from the revolving frame and in which case the support of the upper one of the aforementioned bearings (9), (19, 20) is arranged by means of a support piece leaving the tower and fitted inside the revolving frame.
|
