Arefyev E. Substantiation of parameters of vibrating cleaners of belts of conveyor, transporting rock

Object of study - the process of cleaning the belt from adhering rock vibratory cleaner. The aim is to increase the efficiency of cleaning vibrating conveyor belt cleaning device by study of its design and operational parameters, taking into account the dynamic properties of vibration cleaner, contact deformation belts, variable thickness adhering rock mass and its physical and mechanical properties. Research methods: basic principles of analytical mechanics, computational methods and software to create research and application software modules. Scientific results: the development of knowledge about the process of vibration cleaning belt, communication optimal mechanical parameters with parameters of vibration cleaner and physical and mechanical properties adhering layer of rock, the disclosure impact of design parameters on the quality of cleaning wiper. Bottom line: developed and implemented methodology study of optimal parameters vibrating conveyor belt cleaner by economic efficiency, developed special software modules for the mathematical modeling of the dynamic process of vibration cleaning. The novelty of the results: a mathematical model that adequately describes the formation of acceleration conveyor belt in the transverse direction during vibration cleaning and the thickness of not separating layer of rock, characterized considering the dynamic properties of the electromagnetic excitation of vibration cleaner polyharmonic vibrations, contact deformation belts in the region of its interaction with a working body cleanser and a variable thickness adhering rocks in the area cleaner, and its physical and mechanical properties, which allows an order to reduce the relative error of calculation of the maximum values of vibration acceleration belt, first theoretically and experimentally established pattern, consisting in the fact that the maximum accelerations belt in the transverse direction, which offers the least thickness of not separating layer of rock, occur in provided that the frequency of the perturbation of (0.5 - 1.0) from the natural frequency of cleaner, and (0.8 - 1.0) or (1.7 - 2.3) of the natural frequency of the belt, with the mass of the cleaner should be minimum possible, for the first time developed a mathematical model of optimization of design and power parameters of vibrating conveyor belt cleaner by economic efficiency, allowing to minimize the thickness of not separating from vibration cleaning layer and integrate restrictions in scale fluctuations of the working body, the strength of its contact interaction with the belt, the rational ratio of natural frequencies of belt, of vibration cleaner and frequency of disturbance. The results of the used in the creation and modernization of belt conveyors. Application area: mining engineering.