Back to results
US 4,381,588 AGranted
Controlled deflection roll
AssigneeEscher Wyss Limited
InventorMario Biondetti
Life of this patent
Estimating the term…
Abstract
A controlled deflection roll contains a stationary roll support and a roll shell which is rotatable about the stationary roll support. The roll shell consists of two parts or elements which are coaxially interconnected by friction, and specifically, an inner base body and an outer sleeve. The outer surface of the base body and the inner surface of the sleeve can contain substantially cylindrical stepped surfaces facilitating the mounting or insertion of the sleeve upon the base body and the withdrawal of the sleeve from the base body with the aid of a pressurized fluid medium.
Claims10
A controlled deflection roll comprising:
- a stationary roll support;
- a roll shell mounted to be rotatable about the stationary roll support;
- said roll shell having an inner surface;
- at least one support element for supporting the roll shell upon the stationary roll support;
- said support element acting with a pressure force against the inner surface of the roll shell;
- said roll shell comprising at least two coaxial elements which can be releasably interconnected with one another;
- said at least two coaxial releasably interconnectable elements comprising an inner base body and an outer sleeve member;
- respective sealing means provided for at least one end of the base body and at least one end of the sleeve member;
- said base body of the roll shell being provided with a channel;
- said channel opening into an outer surface of the base body which coacts with an inner surface of the sleeve member of the roll shell;
- a source of a pressurized fluid medium connectable with said channel;
- said outer surface of the base body containing at least two cylindrical portions having stepped diameters;
- said inner surface of the sleeve member being provided with at least two correspondingly configured cylindrical portions possessing stepped diameters and cooperating with related ones of said two cylindrical portions of the base body;
- in the undeformed condition of the interconnectable elements of the roll shell the outer diameter of each cylindrical portion of the base body is larger in size by a given overdimension than the inner diameter of each related cylindrical portion of the sleeve member, but the diameter of one portion of the sleeve member containing the larger diameter of such sleeve member being greater than the diameter of a neighboring portion of the base body containing the smaller diameter of the outer surface of such base body;
- said sealing means being provided for the base body at its end having the smaller diameter and at the sleeve member at its end having the larger diameter;
- and
- said channel extending behind the related sealing means at said base body.
14 more elements
Dependencies are inferred from the claim text.