Transverse end seal for a flexure-controllable roll

US5119542A · kind A · utility

Assignee

• Eduard Kusters Maschinefabrik GmbH & Co. KG · DE

Inventors

• Karl-Heinz Kusters · Krefeld, DE
• Gunter Schrors · Tönisvorst, DE

Key dates

• Filing date: Jun 7, 1990
• Grant date: Jun 9, 1992
• Expiry date: Jun 7, 2010

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2404/1372
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In a hydraulically supported roll including a rotatable hollow cylinder and a stationary crosshead, transverse end seals are provided to seal the annular clearance space formed between the crosshead and the inner circumference of the hollow cylinder. Each transverse end seal includes a slide ring having a chamber located on the first surface of the slide ring abutting a counter-ring. The chamber provides hydraulic relief. Radially outside of the chamber a narrow groove is provided which communicates with the low-pressure side of the slide ring via a channel. The channel discharges hydraulic fluid flowing to the first surface of the slide ring as a result of the high pressure in the clearance space.