Roll-stand roll with hydraulically changeable contour

US4602408A · kind A · utility

Assignee

• BWG BERGWERK—UND WALZWERK—MASCHINENBAU GMBH

Inventors

• Andreas Noe · Kerken, DE
• Rolf Noe · Mülheim, DE

Key dates

• Filing date: Nov 16, 1984
• Grant date: Jul 29, 1986
• Expiry date: Nov 16, 2004

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B27/05
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A roll for a hot- or cold-rolling stand has a core having an outer surface centered on an axis and a pair of axially opposite ends and respective conduits extending through the core and opening adjacent the ends thereof. A sleeve having an outer surface, axially opposite ends, and an inner surface centered on the axis coaxially surrounds the core. One of the surfaces has a central portion projecting radially toward and engaging the other surface between the ends in all-around annular contact. Respective elastic and annular seals engage radially between the ends of the rolls, that is each seal engages betwen one end of the sleeve and the corresponding end of the core. These seals define respective annular compartments at the ends, between the roll surfaces, and subdivided axially from each other by the central portion of the one surface. Each conduit opens into a respective one of the compartments. The compartments can be pressurized via the respective conduits to change the shape of the outer surface of the sleeve at least at the compartments.