| 摘要 |
The present invention provides a parallel gear unit (20) for a gearbox (30) for a wind turbine. The parallel gear unit (20) comprises at least a low speed shaft (21) and a high speed shaft (22), each shaft (21, 22) comprising a gear (23, 25) with helical teeth, the gears (23, 25) of each shaft (21, 22) being adapted for meshing with each other. The low speed shaft (21) is rotatably supported by roller bearings (24a) and the high speed shaft (22) is rotatably supported by sliding bearings (24b). The present invention also provides a gearbox (30) comprising a parallel gear unit (20) according to embodiments of the invention and a wind turbine comprising such a gearbox (30). |
