Patent ID: 6344019
Filing Date: 2002-02-05
Classification: B30B,D21G,F16C

Abstract:
A rolling contact cylinder device for subjecting webs to a pressure treatment, comprising:a deflection-controllable cylinder; a hollow cylinder having an inner peripheral surface, the hollow cylinder located within the deflection-controllable cylinder, the hollow cylinder rotating around an axis and forming a working cylinder circumference; a non-rotatable crosshead having ends and a length, the crosshead traverses the hollow cylinder, clearance being maintained between the crosshead around an inner peripheral surface of the hollow cylinder; an inner support device which is mounted on the crosshead and which acts on the inner peripheral surface of the hollow cylinder, the inner support device having outer bearings which support the ends of the crosshead at outer sidewalls, each of the outer bearings have cooperating spherical surfaces for absorbing a deflection of the crosshead, one of the spherical surfaces is attached to the crosshead and another of the spherical surfaces is attached to one of the sidewall cooperating spherical surfaces are combined within a ring-shaped bearing element arranged in a plane that is perpendicular to an axis of the crosshead and the bearing element is arranged in an opening in one of the sidewalls, wherein one of the ends crosshead extends through the ring-shaped bearing element, the crosshead has a shoulder in the area of the bearing element that supports as a single constructional unit components of bearing; and an arrangement of flat slide surfaces that are hydrostatically relieved of load to compensate for thermal-related changes in the length of the crosshead, one of the flat slide surfaces is joined to the crosshead and another of the flat slide surfaces is joined to one of the sidewalls, wherein the spherical surfaces and the flat slide surfaces are at least to some extent hydraulically relieved of load.