Roll for use in calenders or the like

Details Roll for use in calenders or the like Roll for use in calenders or the like

1981-06-03

1983-07-26

Desmond, Eugene F.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

B21B 1314, B21B 2900

Patent

active

043947930

ABSTRACT:
A calender roll wherein a stationary shaft is spacedly surrounded by a cylindrical shell and carries a row of bearing elements which are movable by pairs of cylinder and piston units and have convex surfaces formed with pairs of fluid-filled pockets adjacent to the internal surface of the shell. Each pocket receives pressurized hydraulic fluid from the cylinder chamber of a different unit, and the cylinder and piston units for each bearing element are adjacent to each other, as considered in the circumferential direction of the shell. Those portions of the pockets which are remotest from a symmetry plane including the axis of the shell and extending between the pockets of each pair are bounded by arcuate lands. The lands which extend circumferentially of the shell are parallel to each other, and the pockets of each pair are separated from each other by a land which is halved by the symmetry plane. The bearing elements are separated from each other by narrow gaps extending circumferentially of the shell and bounded by parallel side faces of the respective bearing elements. The magnitude of forces acting upon the internal surface of the shell is substantial in the regions of the gaps and increases gradually toward the central portions of the bearing elements, as considered in the axial direction of the shell.

REFERENCES:
patent: 4228571 (1980-10-01), Biondetti
patent: 4241482 (1980-12-01), Biondetti

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