Speed-varying device and wind turbine generator system

Details Speed-varying device and wind turbine generator system Speed-varying device and wind turbine generator system

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 1/20 (2006.01) F03D 1/06 (2006.01) F03D 7/04 (2006.01) F16H 1/08 (2006.01) F16H 57/02 (2006.01)

Patent

CA 2669030

A speed-varying device (10A) that can give a high gear ratio with a small number of stages and that can be reduced in weight is provided. The speed-varying device (10A) is configured by combining parallel gears, and an input gear (11) provided on an input shaft (Si) and an output gears (12A, 12B) provided on an output shaft (So) are coupled to each other via a plurality of pinion shafts (Sv) that are arranged in the circumferential direction. The pinion shafts (Sv) are each provided with gears (13, 14A to 14B) having teeth different in number at both ends thereof. The gears (14A to 14D) disposed on the output shaft (So) side of the plurality of pinion shafts (Sv) are engaged with the plurality of output gears (12A, 12B) alternately in the circumferential direction. The output gears being arranged so as to be shifted from one another in the axial direction of the output shaft (So).

L'invention porte sur une unité de transmission (10A) qui fournit un rapport de transmission élevé malgré un nombre réduit d'étages de transmission et dont le poids est minime. L'unité de transmission (10A) est composée d'une combinaison d'engrenages parallèles et présente un engrenage d'entrée (11) engagé sur un arbre d'entrée (Si) et couplé à des engrenages de sortie (12A, 12B) engagés sur un arbre de sortie (So) par l'intermédiaire de multiples arbres de pignon (Sv). Les deux extrémités des multiples arbres de pignons (Sv) sont munies d'engrenages (13, 14A-14B) dont le nombre de dents diffère. Les arbres de pignon sont disposés dans une direction circonférentielle. Les engrenages (14A-14D) disposés sur le côté arbre de sortie (So) des multiples arbres de pignon (Sv) se verrouillent mutuellement et de façon alternée dans la direction circonférentielle avec les multiples engrenages de sortie (12A, 12B) auxquels est communiqué un déplacement le long de la direction axiale de l'arbre de sortie (So).

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