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RESEARCH PAPERS: Materials Handling Papers

The Design of a Linear “Out of Phase” Vibratory Conveyor

[+] Author and Article Information
R. E. Schofield, M. Yousuf

Department of Mechanical Engineering, The Queen’s University of Belfast, Ashby Institute, Belfast, Ireland

J. Eng. Ind 95(1), 42-47 (Feb 01, 1973) (6 pages) doi:10.1115/1.3438154 History: Received June 23, 1972; Online July 15, 2010

Abstract

This paper describes the development of a linear “out-of-phase” vibratory conveyor. The “out-of-phase” effect is achieved by controlling the components of motion normal to and parallel to the track independently. This is done by mounting the trough on sets of double “U” shear rubber mountings. From Fig. 1(a) it can be seen that these mountings allow motion in any direction in the plane of the rubber while substantially constraining motion perpendicular to that plane. Excitation of the trough is by two hydraulic pumps the phase angle between which is controlled by a positive drive belt. Experimental investigations into the behavior of single parts were carried out and results comparable to the theoretical predictions for “out-of-phase” were obtained. Substantial increases in the mean conveying velocity of single parts can be achieved without erratic part movement because it is possible with this system to use high values of normal track acceleration An /g combined with low vibration angles. Increases in mean conveying velocity of as much as 270 percent are obtained, depending on the coefficient of friction and vibration angles.

Copyright © 1973 by ASME
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