Diaphragm preload air bearing

Details Diaphragm preload air bearing Diaphragm preload air bearing

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 32/06 (2006.01) F16C 29/02 (2006.01)

Patent

CA 2322828

A preload hydrostatic bearing (12) includes a pad (28), a diaphragm (28) and an adjustable member (32). The pad has a bearing structure (38), an inlet manifold (34), and a plurality of orifices (36). The orifices direct a fluid, such as air, from the inlet manifold toward the bearing surface. The diaphragm is mounted on the pad, and the adjustable member, which extends in an axial direction, is coupled proximate one end to a center portion of the diaphragm. The diaphragm transfers a preload in the axial direction to the adjustable member. This preload hydrostatic bearing has a high repeatability of performance, without any source of friction and hysteresis.

L'invention concerne un palier hydrostatique à rattrapage de jeu (12) qui comporte un patin (28), un diaphragme (28) et un organe ajustable (32). Le patin comprend une structure de palier (38), une tubulure d'admission (34) et plusieurs orifices (36). Les orifices dirigent un fluide, tel que de l'air, de la tubulure d'admission vers la surface de palier. Le diaphragme est monté sur le patin et l'organe ajustable, qui s'étend dans le sens axial, est accouplé à proximité d'une extrémité à une partie centrale du diaphragme. Le diaphragme transfère une précharge à l'organe ajustable, dans le sens axial. Le palier hydrostatique à rattrapage de jeu selon l'invention présente une répétabilité de performance élevée, sans sources de friction et d'hystérésis.

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