Combined hydrostatic/hydrodynamic bearing system for grinding ap

Details Combined hydrostatic/hydrodynamic bearing system for grinding ap Combined hydrostatic/hydrodynamic bearing system for grinding ap

1988-10-21

1990-01-02

Gorski, Joseph M.

Solid material comminution or disintegration

Processes

Miscellaneous

B02C 714

Patent

active

048907960

ABSTRACT:
Combined hydrostatic/hydrodynamic bearing system for a grinding apparatus in which the material is ground in a grinding space defined between a pair of relatively rotating grinding members and in which at least one of the grinding members is carried by an axially displaceable rotatable shaft. One or more cylindrical pistons are mounted on the rotatable shaft to rotate therewith within a pressure chamber defined within a stationary cylindrical housing permitting the piston or pistons to be displaced axially therein. Fluctuations in axial thrust forces acting on the displaceable rotatable shaft are counteracted by applying a fluid pressure medium to one or both of the piston ends of the cylindrical piston or pistons in a controlled manner so as to maintain a predetermined clearance range of the grinding space.

REFERENCES:
patent: 2947485 (1960-08-01), Woodruff et al.
patent: 3212721 (1965-10-01), Asplund et al.
patent: 3806208 (1974-04-01), Bruck
patent: 4402463 (1983-09-01), Kahmann et al.

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