| 摘要 |
A drive assembly for a wind turbine ( 10 ) comprises a rotor hub ( 14 ), supporting structure such as a turbine nacelle ( 15 ), a planetary type gear transmission unit comprising sun, planet ( 47, 48 ) and ring gears ( 49 ) and a planet carrier ( 41 ), said planet carrier comprising a planet bogie plate ( 43 ) which supports and locates circumferentially spaced gear bearings ( 45, 46 ), said bearings ( 45, 46 ) being able, in use, to self adjust in angular position relative to the plate ( 43 ) whereby the rotational axes of the bearings ( 45, 46 ) may be either perpendicular to the general plane of the bogie plate ( 43 ) or depart therefrom. |
