Support bearing for nutating machines

Details Support bearing for nutating machines Support bearing for nutating machines

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 13/02 (2006.01) B02C 17/14 (2006.01) B02C 17/24 (2006.01) F16C 11/00 (2006.01) F16C 11/06 (2006.01)

Patent

CA 2262656

In a nutating machine such as a high intensity comminution machine having a nutating drum (1), a support bearing is provided by pairs of rolling bearing surfaces (6 and 8, and 7 and 9) . In order to reduce power requirements and wear each pair of complementary contact paths traced out by the bearing surface pairs has an equal ratio of path length in the stationary bearing surface (8, 9) to the path length in the nutating bearing surface (6, 7). In one embodiment, irrotational movement of the nutating element is achieved by having equal path lengths as between the stationary bearing surface and the nutating bearing surface in both pairs.

Dans une machine de nutation, telle qu'une machine de fragmentation à intensité élevée, possédant un tambour de nutation (1), un palier de support est constitué par des paires de surfaces de paliers à rouleaux (6 et 8, 7 et 9). Dans le but de limiter les besoins en puissance et l'usure, chaque paire de pistes de contact complémentaires définies par les paires de surfaces de paliers possède un rapport égal entre la longueur de piste dans la surface de palier fixe (8, 9) et la longueur de piste dans la surface du palier de nutation (6, 7). Dans un mode de réalisation, le mouvement irrotationnel de l'élément de nutation est effectué du fait de deux longueurs égales de pistes entre la surface de palier fixe et la surface de palier de nutation dans les deux paires.

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