Improved locking differential including resilient disc means

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

Patent

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F16H 48/14 (2006.01)

Patent

CA 2678086

A locking differential includes a pair of clutch members (146,148) that are biased together by a resilient disc and friction pack assembly toward a cross pin (144) that extends diametrically across the central chamber of a cylindrical housing (104) driven by the drive shaft of a vehicle, thereby to drive a pair of side gears (154, 156) and the output shafts splined thereto. The cross-pin extends within operating cam grooves (150) contained in the adjacent faces of the clutch members, such that when the rotational velocity of one output shaft exceeds that of the other by a predetermined amount, the friction pack assembly (164,166) of the faster shaft is operated to a non- compressed condition, thereby to disengage the over-running output shaft from the drive shaft. The resilient disc devices may be annular wave springs, or resilient disc springs.

L'invention concerne un différentiel à blocage comprenant une paire d'éléments d'embrayage sollicités ensemble par un disque souple et un ensemble à friction vers une contre-goupille qui s'étend diamétralement à travers la chambre centrale d'un logement cylindrique entraîné par l'arbre d'entraînement d'un véhicule, entraînant ainsi une paire de planétaires de différentiel et les arbres de sortie cannelés sur ceux-ci. La contre-goupille s'étend dans des rainures de cames d'actionnement formées dans les faces adjacentes des éléments d'embrayage, de sorte que, lorsque la vitesse de rotation d'un arbre de sortie dépasse celle de l'autre arbre selon une valeur prédéterminée, l'ensemble à friction de l'arbre le plus rapide fonctionne dans un état de non-compression, ce qui dégage l'arbre de sortie à dépassement de l'arbre d'entraînement. Les dispositifs à disque souple peuvent être des ressorts ondulés annulaires ou des ressorts à disque souple.

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