D - Textiles – Paper – 21 – G
Patent
D - Textiles, Paper
21
G
D21G 1/02 (2006.01) D21F 3/02 (2006.01) F16C 13/00 (2006.01)
Patent
CA 2198229
A hydraulic crown support system (28, 31) employs a stationary cross head (30, 42) mounted within a cylinder (22) or beneath an extended nip shoe (24). Individual hydraulic pistons (34, 46) are disposed along the stationary cross head (30, 42), which, under the force of hydraulic pressure, support the inner wall (40) of a roll (22) or an extended nip shoe (24). The displacement of the support cylinders (34, 46) is controlled through one or more adjustable ports (66, 58, 76, 78, 80, 90) formed in the sidewall of the hydraulic cylinder or cylinders which support the roll (22) or extended nip shoe (24). With a piston (34, 46) which extends from one end of the stationary cross head (30, 42) to the other, some tilting from one side to the other of the cross head can be achieved by the adjustment of the pressure ports, thus compensating for misalignment in the vertical direction between an extended nip (24) or crown- controlled roll (22).
L'invention porte sur un système hydraulique (28, 31) de support de couronne comprenant une traverse fixe (30, 42) placée à l'intérieur d'un cylindre (22) ou sous un sabot pinceur allongé (24). Des pistons hydrauliques indépendants (34, 46) sont placés le long de la traverse fixe (30, 42) qui sous l'effet de la pression hydraulique supportent la paroi intérieure (40) d'un rouleau ou d'un sabot pinceur allongé (24). Le déplacement des vérins-supports est commandé par on ou plusieurs orifices réglables (66, 58, 76, 78, 80, 90) percés dans la paroi latérale du ou des vérins portant le rouleau (22) ou le sabot pinceur allongé (24). En utilisant un piston (34, 46) qui s'étend d'une extrémité de la traverse fixe (30, 42) à l'autre, on peut provoquer un certain basculement en agissant sur les orifices réglables, ce qui permet de compenser les défauts d'alignement verticaux entre un sabot pinceur allongé (24) ou un rouleau (22) commandé par couronne.
Roerig Arnold J.
Beloit Technologies Inc.
Ridout & Maybee Llp
LandOfFree
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