Constant-Deflection Rolls—A New Solution to an Old Problem

[+] Author and Article Information
D. W. Pessen

Dept. of Mechanical Engineering, Technion, Israel Institute of Technology, Haifa, Israel

J. Mech. Des 102(3), 430-436 (Jul 01, 1980) (7 pages) doi:10.1115/1.3254765 History: Received July 01, 1979; Online November 17, 2009


The problem of designing a set of rolls exerting a uniform pressure on material passing between them has elicited many different solutions, none quite satisfactory. A new solution, presented here, uses composite rolls having a cigar-shaped inner core and a cylindrical outer shell, the gap between them being filled with a soft elastomer containing approximately 15 percent air bubbles. The core profile is calculated according to equations derived here. The solution produces even roll pressure for any load, without the need for making adjustments to match changing loads. At the same time, the solution is mechanically very simple and reliable.

Copyright © 1980 by ASME
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