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1. WO1996005367 - HYDROSTATIC SELF-LOADING CONTROLLED DEFLECTION ROLL

Publication Number WO/1996/005367
Publication Date 22.02.1996
International Application No. PCT/US1995/010216
International Filing Date 10.08.1995
Chapter 2 Demand Filed 23.02.1996
IPC
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
D21G 1/022
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
022the means using fluid pressure
F16C 13/026
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
Applicants
  • BELOIT TECHNOLOGIES, INC. [US/US]; Suite 3001 3513 Concord Pike Wilmington, DE 19803, US
Inventors
  • BROWN, Dale, A.; US
  • ROERIG, Arnold, J.; US
Agents
  • MATHEWS, Gerald, A.; One St. Lawrence Avenue Beloit, WI 53511, US
Priority Data
08/291,38216.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HYDROSTATIC SELF-LOADING CONTROLLED DEFLECTION ROLL
(FR) CYLINDRE A DEVIATION CONTROLEE, AUTO-CHARGEUR ET HYDROSTATIQUE
Abstract
(EN)
A hydrostatic self-loading controlled deflection roll has a central, hydraulically operated shoe which extends substantially the entire cross-machine width of the rotating roll shell (1), and two outboard shoes (24, 26, 28, 30) disposed, in the cross-machine direction, outside of the nip loading zone. The use of the outboard shoes (24, 26, 28, 30) permits the use of a single, full-length nip shoe (3) within the nip loading zone, which simplifies control and provides for more uniform temperature distribution. The outboard shoes (24, 26, 28,30) also provide better crown control. The outboard shoes (24, 26, 28, 30) are preferably disposed within a head flange (17, 18) area of the roll, at the location where spherical bearings would normally be present in a conventional roll. A bearing ring is disposed axially outside of the head flange (17, 18) and around a portion of a bearing box at either end of the roll for rotatably supporting the roll shell about bearings in the bearing box. A barrier seal is disposed between the stationary roll shaft and the roll shell (1) intermediate the bearings and outboard shoes (24, 26, 28, 30).
(FR)
Un cylindre auto-chargeur, hydrostatique, à déviation contrôlée, comporte un sabot central à actionnement hydraulique qui s'étend sensiblement sur la totalité de la largeur de la virole (1) du cylindre rotatif, dans le sens transversal de la machine. Il comprend également deux sabots extérieurs (24, 26, 28, 30) disposés dans le sens traversal de la machine, à l'extérieur de la zone de charge de contact. L'utilisation des sabots extérieurs (24, 26, 28, 30) permet d'avoir recours à un seul sabot de contact (3) sur toute la longueur de la zone de charge de contact, ce qui simplifie le contrôle et assure une répartition des températures plus uniforme. Les sabots extérieurs (24, 26, 28, 30) assurent également un meilleur contrôle de la cambrure. Les sabots extérieurs (24, 26, 28, 30) sont, de préférence, placés dans une zone formant bride de tête (17, 18) du cylindre, à l'endroit où se trouveraient normalement des paliers sphériques dans un cylindre traditionnel. Une bague de palier est placée, dans le sens axial, à l'extérieur de la bride de tête (17, 18) et autour d'une partie d'un boîtier de roulement à chaque extrémité du cylindre pour supporter en vue de sa rotation la virole de cylindre autour des paliers dans le boîtier de roulement. Un joint d'étanchéité formant barrière est placé entre l'arbre de cylindre fixe et la virole de cylindre (1) entre les paliers et les sabots extérieurs (24, 26, 28, 30).
Also published as
FI970636
Latest bibliographic data on file with the International Bureau