Continuous variable speed transmission with flexible link

Details Continuous variable speed transmission with flexible link Continuous variable speed transmission with flexible link

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 29/00 (2006.01) F16H 29/08 (2006.01)

Patent

CA 2364624

Flexible link drive apparatus having a housing (100) rotationally supporting an eccentric input shaft (116) and an output shaft (118). An eccentric roller assembly (216) is coupled to the eccentric input shaft, and the eccentric roller assembly comprising at least one input roller (238, 240). Additionally, a clutch member (260) is coupled to the output shaft (118). The present disclosure further relates to a flexible connection member (282) that has a fixed end coupled to the housing through a flexible connection member anchor, and a free end coupled to the housing through a biasing member (268). The input roller (238, 240) intermittently contacts the flexible connection member and rotates the clutch member and the output shaft. The coupling of the free end of the flexible connection member to the housing by the biasing member causes a greater angle of travel for the clutch member and produces a greater output shaft rotation. Image

L'invention concerne un appareil d'entraînement à liaison souple, présentant un carter (100) supportant rotatif un arbre d'entrée excentrique (100) et un arbre de sortie (118). Un ensemble de rouleaux excentriques (216) est accouplé à l'arbre d'entrée excentrique et comporte au moins un rouleau d'entrée (238, 240). Par ailleurs, un élément d'embrayage (260) est accouplé à l'arbre de sortie (118). L'invention se rapporte à un élément de liaison souple (282) qui présente une extrémité fixe accouplée au carter par un élément d'ancrage de fixation d'accouplement souple, et une extrémité libre accouplée au carter par un élément de sollicitation (268). Le rouleau d'entrée (238, 240) vient en contact de manière intermittente avec l'élément d'accouplement souple et fait tourner l'élément d'embrayage et l'arbre de sortie. L'accouplement de l'extrémité libre de l'élément d'accouplement souple au carter par l'élément de sollicitation induit un angle de déplacement supérieur pour l'élément d'embrayage et une rotation plus importante de l'arbre de sortie.

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