| 摘要 |
PROBLEM TO BE SOLVED: To provide a wind power generation device capable of effectively suppressing generation of smearing on a rolling bearing supporting an output shaft of a speed-increasing gear.SOLUTION: A wind power generation device 1 includes: an input rotary body 5 integrally rotatably disposed on an output shaft 35 of a speed-increasing gear 3; an output rotary body 6 integrally rotatably disposed on an input shaft 41 of a power generator 4; and a one-way clutch 7 disposed between the input rotary body 5 and the output rotary body 6. The one-way clutch 7 integrally rotatably connects the input rotary body 5 and the output rotary body 6 in a state that a rotating speed of the input rotary body 5 is higher than a rotating speed of the output rotary body 6, and disconnects the input rotary body 5 and the output rotary body 6 in a state that the rotating speed of the input rotary body 5 is lower than the rotating speed of the output rotary body 6. Axial relative movement of the input rotary body 5 and the output rotary body 6 is permitted, and its maximum allowance is determined to be larger than a fluctuation amount of an axial interval between the input shaft 41 and the output shaft 35 due to state change. |
