Motion control apparatus

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

Patent

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Details

F16D 63/00 (2006.01)

Patent

CA 2684279

A motion control apparatus ( 10) in the form of a linear brake includes a camshaft (23) rotatable in a housing (11) moveable along a linear rail (30). The camshaft (23) is rotated by a gear motor (15) causing an eccentric engagement portion of a cam follower (24) to abut with a facing (12) which engages the linear rail (30) to provide a clamping force thereon. A damper (25) is received on a dowel pin (14) secured to the housing (11) and received in a U-shaped groove in the camshaft (23) to inhibit further rotation of the camshaft (23). A shim (20) separates the outer races of the bearings (22) receiving the camshaft (23) to preload the first and second bearings (22).

L'invention concerne un appareil de commande de mouvement (10) ayant la forme d'un frein linéaire qui comprend un arbre à came (23) rotatif dans un boîtier (11) mobile le long d'un rail linéaire (30). L'arbre à came (23) est mis en rotation par un moteur à engrenages (15) amenant une partie de contact excentrée d'un suiveur de came (24) à venir en butée avec une face (12) qui coopère avec le rail linéaire (30) pour fournir une force de serrage sur celui-ci. Un amortisseur (25) est reçu sur une goupille (14) fixée sur le boîtier (11) qui est reçue dans une gorge en forme de U de l'arbre à came (23) pour empêcher une rotation supplémentaire de l'arbre à came (23). Une cale (20) sépare les chemins de roulement extérieurs des paliers (22) recevant l'arbre à came (23) pour précharger les premier et second paliers (22).

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