LARGE WIND POWER GENERATION SET FOR ULTRA-LOW TEMPERATURE ENVIRONMENT

摘要

A large wind power generation set for ultra-low temperature environment comprises a tower (1) and a host machine (2) mounted at the top end of the tower, wherein an input end of the host machine is connected with a hub (4) to which an impeller (3) is connected. A pitch reducer (5) is arranged in the hub. The host machine comprises a base (21) on which a gear box (22) and a yaw reducer (6) are provided. A shaft of the gearbox, which is connected with the hub, is provided with a bearing seat (23). The tower and the base are made of a high-strength low-alloy material, and the hub, the bearing seat, the pitch reducer shell and the yaw reducer shell are made of a ductile cast iron material.