Modelling and experimental investigation of the vibratory conveyor operating conditions

Abstract

The paper’s objective is to study the dynamic parameters and operating conditions of the vibratory conveyor, which is based on the double-mass oscillatory system and equipped with the pull-type (single-cycle) electromagnetic exciter. The scientific novelty consists in substantiating the conveying capacity of various standard sizes of bolts at different operating conditions defined by the input parameters, particularly supplied voltage. In order to describe the conveying tray vibrations, the simplified mathematical model of the conveyor’s double-mass oscillatory system is developed using the Euler-Lagrange equations and is numerically solved in the Mathematica software with the help of the Runge-Kutta methods. The experimental investigations are carried out at the Vibroengineering Laboratory of Lviv Polytechnic National University and are focused on testing the conveying speed of various bolts at different motion conditions: detachable (bouncing, hopping, jumping over the conveying surface) and non-detachable (sliding along the conveying surface). The obtained results show the basic kinematic parameters of the conveying tray motion at different voltages supplied to the actuating electromagnet and the dependencies of the conveying speeds of various bolts at different motion conditions mentioned above. The paper may be useful for designers and researchers while improving and implementing similar vibratory equipment in various industries.

Review of Linear Electric Motor Hammers—An Energy-Saving and Eco-Friendly Solution in Industry

“…Traditionally, hydraulic crushing hammers are used at the first stage of sieving screens (see Figure 10), to prevent the passing of oversized rocks for further sieving and other technological processes (Bembenek et al [62], Korendiy et al [63]). One more industrial application of linear motors is for actuators of vibration in sieving machines.…”