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1. WO1996006224 - POSITION CONTROL FOR SELF-LOADING ROLL

Publication Number WO/1996/006224
Publication Date 29.02.1996
International Application No. PCT/US1995/009994
International Filing Date 25.07.1995
Chapter 2 Demand Filed 23.02.1996
IPC
D21F 3/02 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
3Press section of machines for making continuous webs of paper
02Wet presses
D21G 1/02 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
GCALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
1Calenders; Smoothing apparatus
02Rolls; Their bearings
F16C 13/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
13Rolls, drums, discs, or the like; Bearings or mountings therefor
CPC
D21F 3/0218
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
3Press section of machines for making continuous webs of paper
02Wet presses
0209with extended press nip
0218Shoe presses
D21G 1/0213
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
GCALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
1Calenders
02Rolls; Their bearings
0206Controlled deflection rolls
0213with deflection compensation means acting between the roller shell and its supporting member
F16C 13/028
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
13Rolls, drums, discs, or the like
02Bearings
022supporting a hollow roll mantle rotating with respect to a yoke or axle
024adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle
026by fluid pressure
028with a plurality of supports along the length of the roll mantle, e.g. hydraulic jacks
Applicants
  • BELOIT TECHNOLOGIES, INC. [US/US]; Suite 3001 3513 Concord Pike Wilmington, DE 19803, US
Inventors
  • ROERIG, Arnold, J.; US
Agents
  • ARCHER, David, J.; One St. Lawrence Avenue Beloit, WI 53511, US
Priority Data
08/293,97822.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POSITION CONTROL FOR SELF-LOADING ROLL
(FR) COMMANDE DE POSITION POUR ROULEAU AUTO-CHARGEUR
Abstract
(EN)
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).
(FR)
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.
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