Hydrostatic shoe for controlled crown rolls

Details Hydrostatic shoe for controlled crown rolls Hydrostatic shoe for controlled crown rolls

1996-10-02

1998-08-25

Cuda, Irene

Roll or roller

With antideflection means

Rotatable relative to supporting shaft

492 20, 1623583, B21B 700

Patent

active

057978263

ABSTRACT:
A controlled crown roll utilizes a crown support piston with a glide shoe with a cavity in the face of the glide shoe centered under the nip loading line. The cavity is surrounded by a land area, the majority of which is located away from the nip load. Use of a low viscosity hydraulic fluid, for example, 15.6 cP, with a hydraulic film thickness of 0.002 inches, results in significantly lower friction between the glide shoe and the interior surface of the rotating mantle. Recesses in the piston sides form hydrostatic thrust bearings which perform the centering function for the piston and the glide shoe.

REFERENCES:
patent: 4404724 (1983-09-01), Christ et al.
patent: 4815183 (1989-03-01), Bondetti
patent: 4825520 (1989-05-01), Alajoutsijarvi et al.
patent: 4852229 (1989-08-01), Crouse
patent: 4858292 (1989-08-01), Buhllmann et al.
patent: 4916748 (1990-04-01), Schrors
patent: 5018258 (1991-05-01), Niskanen
patent: 5033176 (1991-07-01), Schiel
patent: 5146838 (1992-09-01), Olson et al.
patent: 5509883 (1996-04-01), Niskanen
patent: 5534117 (1996-07-01), Roerig
patent: 5650048 (1997-07-01), Swietlik

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