Influence of vibratory conveyor design parameters on the trough motion and the self-synchronization of inertial vibrators

Abstract

A spatial model of a vibratory conveyor supported on steel-elastomer vibration isolators and vibrated by two inertial vibrators is presented in this article. The results of analyses of the effect of the layout of vibrators on the operation of the conveyor are presented. Displacement of the line of action of vibrators resultant force beyond the machine mass center causes the drift of the trough movement from the desirable rectilinear motion and problems associated with the unevenness of material movement. Three main cases were analyzed in the article: the displacement of the center of mass of the machine body from the straight line of action of the resultant for the vibrators, rotation of the main axes of inertia of the conveyor body in the working plane of the conveyor, and the oblique-angular resonance. The model presented in this article is used to consider coupling between vibrators and the body of the machine, which is responsible for the process of self-synchronization of the vibrators and the correctness of machine operation. The results of the theoretical analyses presented in this article were verified by laboratory tests and references to observations based on the authors’ industrial experience.