Coupling toothing in a gearbox

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

Patent

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Details

F16D 11/14 (2006.01) F16D 11/10 (2006.01) F16D 21/04 (2006.01)

Patent

CA 2258769

The invention relates to a coupling toothing in a gearbox between two rotationally symmetrical coupling structures (5,6) which can be coupled with each other. Said toothing comprises the following features to increase the strength thereof (a) both coupling structures (5, 6) have claws on opposing sides which project axially from a base surface (10); (b) in a first of the two coupling structures (6), the claws (14, 15, 16) are arranged on the inner peripheral surface (17) of an outer collar (18) delimiting the base surface (10); (c) in the second of the two coupling structures (5), the claws (7, 8) are arranged on the external periphery surface (9) of an inner collar (13) delimiting the base surface (10); and (d) the coupling surfaces of the two claws each have an undercut profile.

L'invention concerne une denture d'accouplement, dans une boîte de vitesses, entre deux corps d'accouplement (5, 6) à symétrie de rotation qui peuvent être accouplés l'un à l'autre. Cette denture comporte les caractéristiques suivantes pour accroître sa résistance: (a) deux corps d'accouplement (5, 6) présentent, sur leurs côtés opposés, des crabots qui sont en saillie axiale par rapport à une surface de base (10); (b) dans un premier corps d'accouplement (6), les crabots (14, 15, 16) sont disposés sur la surface périphérique intérieure (17) d'un épaulement extérieur (18) délimitant la surface de base (10); (c) dans le deuxième corps d'accouplement (5), les crabots (7, 8) sont disposés sur la surface périphérique extérieure (9) d'un épaulement intérieur (13) délimitant la surface de base (10); et (d) les surfaces d'accouplement des deux crabots présentent respectivement une configuration contre-dépouillée.

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