Shaft coupling device

F - Mech Eng,Light,Heat,Weapons – 16 – D

Patent

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Details

F16D 59/00 (2006.01) F16D 13/24 (2006.01) F16D 67/00 (2006.01)

Patent

CA 2505730

The present invention discloses a coupling device for a shaft which includes a coupling disk (1), a disk (2), a force generating source member (3), a first and second concave-convex assemblies (4,5), and a pull rod (14). The first and second concave-convex assemblies (4,5) are configured to be press engagement arrangement in which rotational angular displacement and axial displacement relative to each other is operable. The first concave-convex assembly (4) and said disk (2) are configured to be a press engagement arrangementin which rotational and sliding angular displacement between said first concave-convex assembly (4) and said disk (2) relative to each other is operable. An external force association member (6) is provided between the first concave-convex assembly (4) and an external force member (7). The external force association member (6) and the concave-convex assembly (4) are configured to be press engagement arrangement in which axial sliding displacement relative to each other is operable. The concave-convex assembly (5) is mounted on the coupling disk (1), and two ends of the force generating source member (3) are coupled with the coupling disk (1) and the disk (2). Upon operation of the force generating source member (3), the disk (2) is associated with the out-extending shaft (8) through the coupling disk (1). With this construction, the external force member (7) is associated with the out-extending shaft (8) by the coupling device for a shaft.

L'invention concerne une unité de couplage d'arbre comprenant un disque de couplage (1), un disque (2), un ressort (3), un élément concave (4), un élément convexe (5) et un levier de serrage (14). L'élément concave (4) est ajusté par pression contre l'élément convexe (5), les deux éléments tournant de manière circonférentielle et se déplaçant axialement l'un par rapport à l'autre. Cet élément (4) est également ajusté par pression contre le disque (2) afin de tourner de manière circonférentielle par rapport à celui-ci. Un élément de couplage (6) extérieur est disposé entre l'élément concave (4) et un élément de transmission (7). L'élément de couplage (6) extérieur est ajusté par pression radiale contre l'élément concave (4) afin de coulisser axialement par rapport audit élément concave. L'élément convexe (5) est monté sur le disque de couplage (1). Le ressort (3) est fixé au disque (2) au niveau d'une extrémité et au levier de serrage (14) au niveau de l'autre extrémité. Le levier de serrage (14) forme une jonction avec l'élément de couplage (1) par l'intermédiaire du disque (2). Le disque de couplage (1) est monté sur un arbre de transmission (8) extérieur ou fixé à ce dernier par l'intermédiaire d'un élément de fixation (9) d'arbre afin de former l'unité de couplage d'arbre de l'invention destinée à coupler l'élément de transmission (7) avec l'arbre de transmission (8) extérieur.

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