Investigation of String Vibrations of a Transporting Device

Abstract

AbstractString and belt conveyors are widely used in the light industry and agriculture to transport products and flat goods, in particular, leather products, to the processing area of the technological machines. For these conveyors to work effectively and efficiently for a long time, it is necessary to correctly select the geometrical and kinematic parameters at the process of their design. The technological processing of leather semi-finished products affects the quality of leather products. Therefore, it is necessary to analyze the conditions of the processed material after each technological operation. Experimental research in the leather industry is aimed at solving complex many-sided problems, revealing rational solutions to technological processes in leather raw materials processing. The motion of the conveyor strings, stretched on cylindrical shafts with the grooves, is determined by the Mathieu equation. The parameters of the Mathieu equation depend on the speed of the conveyor strings and geometrical parameters of the system. To limit the amplitude of the transverse vibrational motion of the conveyor strings, it is necessary to select the kinematic and geometrical parameters so that they fall into the stability zone. These parameters are determined depending on the geometrical and kinematic parameters of the device.KeywordsConveying deviceStringsFlat materialVariable massLateral vibrationsUniform feed