Abstract
Many different types of safety mechanisms that are used for mechanical processing machines, such as screw conveyors, to one degree or another provide the requirements set for them regarding the process of functioning during the occurrence of critical loads on the conveyor screws. However, traditional safety ball and cam couplings, when triggered, cause significant shock dynamic loads, and this subsequently causes the destruction of both couplings and conveyor drives. Friction safety clutches have low operating accuracy and do not allow reliable protection of working bodies and drives of machines. Therefore, in order to ensure reliable protection of the working bodies and drives of conveyors, with minor shock loads during the operation of the safety mechanisms, it is advisable to develop new designs of safety ball couplings with closed circular profiles of the engagement elements. The purpose of the work is to increase the operational performance and reliability of the safety clutch by developing a new design of the safety mechanism, which will make it possible to create a wide range of elastic mode of operation before the safety one in the event of an overload of the conveyor screw. 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 developments of the protective mechanism of the conveyor, which will provide protection of the working bodies against overloads in the axial direction. The article presents theoretical equations for determining the change in torque during clutch activation depending on the angle of relative rotation of the half-couplings and the design and technological parameters of the coupling elements. The work presents graphical dependencies and analyzes the intensity of influence of various parameters on the nature and magnitude of the torque, developed appropriate stands and methods for conducting experimental studies to determine the recommended parameters of safety clutches, as well as presented the results of the conducted experiments
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