Bearing control system for a roll with hydrostatic bearings

Details Bearing control system for a roll with hydrostatic bearings Bearing control system for a roll with hydrostatic bearings

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 32/06 (2006.01) D21G 1/02 (2006.01) F16C 13/04 (2006.01) F16C 23/00 (2006.01)

Patent

CA 2249380

The invention concerns a bearing control system for a roll with hydrostatic bearings, which roll is mounted from its axle (3) on a bearing block or on an equivalent frame member by means of a number of hydraulically loaded hydrostatic bearing elements (10, 20, 30). At least one bearing element is a so-called principal bearing element (10), which acts in the principal loading direction, and one bearing element is a so-called backup bearing element (20), which acts in the direction opposite to the principal loading direction. The bearing elements are provided with bearing shoes positioned freely around the neck of the roll axle (3) in order to support said axle (3) and, thus, the roll revolvingly in relation to the frame member, such as a bearing block. The control system has been arranged preferably to feed the pressures of the hydraulic pressure medium passing to the hydrostatic bearing elements (10, 20, 30) so that the roll can be displaced in the principal loading direction (A- A), for example in the direction of the nip plane, by displacing the axle (3) by means of said bearing elements (10, 20, 30).

La présente invention concerne un système de commande de palier destiné à un cylindre à paliers hydrostatiques, cylindre dont l'axe (3) est monté sur un corps de palier ou sur un élément cadre équivalent au moyen de plusieurs éléments (10, 20, 30) de palier hydrostatiques hydrauliquement chargés. Au moins un élément de palier est constitué par un élément de palier principal (10) qui agit dans la direction principale de chargement, et un élément de palier est constitué par un élément de palier auxiliaire (20) qui agit dans la direction opposée à la direction principale de chargement. Les éléments de palier comprennent des coussinets de palier disposés librement autour du tourillon de l'axe (3) du cylindre afin de soutenir rotatifs ledit axe (3) et, par conséquent, le cylindre par rapport à un élément cadre tel qu'un corps de palier. Le système de commande est de préférence agencé de manière qu'il alimente les pressions du liquide hydraulique circulant vers les éléments de palier hydrostatiques (10, 20, 30) pour que l'on puisse déplacer le cylindre dans la direction principale de chargement (A-A), par exemple dans la direction du plan de la pince, en déplaçant l'axe (3) au moyen desdits éléments de palier (10, 20, 30).

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