Integrated shaft-self compensating hydrostatic bearings

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

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F16C 32/06 (2006.01)

Patent

CA 2230149

An integrated spindle shaft and the like and self-compensating hydrostatic bearing assembly, obviating the need for external bearing sleeve constructions, in which a cylindrical bearing bore is so provided having circumferential grooves connected to pressure supply (11, 12) and drain systems (14), and in which collection space pressure supply and fluid drain grooves are provided that cooperate with circumferential collector grooves (4a, 4b, 4c, 4d) and pockets (5c, 5d, 5a, 5b), such that when fluid flows axially from the pressure groove (11, 12) areas across the shaft into the collector grooves (4a, 4b, 4c, 4d), in proportion to the radial clearance between the shaft surface and the bore, in conjunction to the pocket opposite to the collector groove, to provide a restoring force in proportion to the radial displacement of the shaft.

Ensemble de paliers hydrostatiques à compensation automatique arbre de broche intégré, ce qui élimine le besoin en coussinets-douille extérieurs, dans lequel est situé un perçage cylindrique, dont la circonférence comporte des rainures reliées à l'alimentation en pression (11, 12), ainsi qu'à des systèmes de purge (14) et dans lequel se trouvent des rainures d'alimentation en pression d'espace collecteur et de purge de liquide, qui coopèrent avec des rainures de collecteur (4a, 4b, 4c, 4d) et des poches (5c, 5d, 5a, 5b) situées sur la circonférence, de sorte que, quand le liquide s'écoule axialement depuis les zones de rainures de pression (11, 12) à travers l'arbre et à l'intérieur des rainures de collecteur (4a, 4b, 4c, 4d), par rapport au jeu radial entre la surface de l'arbre et le perçage, en combinaison avec la poche située en face de la rainure de collecteur, ceci crée une force de rappel par rapport au déplacement radial de l'arbre.

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