Long nip press roll with internal line couplings at both axial roll ends

US4919761A · kind A · utility

Assignee

• J.M. Voith GmbH · DE

Inventors

• Christian Schiel · Heidenheim, DE
• Hans Flamig · Heidenheim, DE
• Andreas Schutte · Heidenheim, DE

Key dates

• Filing date: Sep 22, 1989
• Grant date: Apr 24, 1990
• Expiry date: Sep 22, 2009

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C13/026
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A long nip press roll includes a stationary support member and a flexible, tubular, inflatable press shell which is supported to rotate around the support member by axially separated support discs rotatable around the support member. A radially displaceable press shoe is supported on the support member for pressing outward against the press shell against a counter roll in the press plane. To enable the press roll to be used in a press where it is disposed either beneath or above the counter roll, all of the internal lines in the support member, e.g. those for the supply and discharge of pressure oil, lubricant and cooling oil and press shell pressurizing air, include two sets of coupling for coupling them to external lines, a respective set of the couplings being located at each axial end of the press roll. During assembly, one of the sets of couplings at one end is connected to external lines, and the other set of couplings is closed.