Abstract
The relevance of the research lies in the need to improve, develop new designs and determine the optimal structural and kinematic parameters of the hinged sections of the screw working bodies of the conveyors, in order to obtain better functional and operational characteristics of the process of transporting loose and lumpy materials and granular fertilizers. It is necessary to improve and develop a new designs and determine optimal design and kinematic parameters of hinged sectional operating elements of screw conveyers, which can provide the improvement of functional and operating characteristics of the process of transporting loose materials. Therefore, the purpose of the research was to improve the operational performance of flexible screw conveyors by developing and determining the optimal parameters of hinged flexible screw sectional working bodies for overloading bulk materials along curved transportation branches. The research was carried out using the methods of the theory of mathematical and computer modeling. the method of mathematical planning of the experiment. The article presents new designs of hinged screw working bodies and substantiates their optimal parameters for ensuring the movement of loose materials along curvilinear routes. The relationship between the magnitude of the torque that occurs between the loaded screw sections and their spatial arrangement is determined. Analytical dependences were obtained for the stiffness conditions of a separate section with a hinged connection depending on the load and design parameters of the conveyor. It has been established that the angular displacement of the sections according to the dependence established in the state allows to significantly (up to 4-5 times) reduce the amplitude of the change of the torque of the drive, and also lowers its maximum value. It was proved that in the pushing mode, energy consumption is 1.06...1.4 times higher than in the pulling mode. The practical significance of the results lies in the ability to choose the optimal structural, kinematic and technological parameters of the developed sections of the screw working body for transporting loose or lumpy materials and mineral fertilizers