This article presents the design of a working body for removing the damaged soil layer inside a crater, which allows for field studies of the process of removing the damaged soil layer from inside a crater formed as a result of explosions. A methodology has been developed for conducting experimental studies of the working body for removing the damaged soil layer from inside a crater.
The article presents a general view of the working body for cleaning the damaged soil layer inside the crater. In order to select an excavator to which the developed working body is attached, and to determine the requirements for the engine, transmission and fuel consumption, a calculation of the energy intensity of cleaning one cubic meter of contaminated damaged soil layer was carried out.
The article presents the construction of a flexible sectional screw working body, the use of which allows to improve the performance of flexible screw conveyors with low material consumption of the working body, which reduces energy costs for the transportation process. Based on the results of static experimental studies, the nature of the change in the dependence of torque on the angle of twist of individual sections has been established.
An experimental model of a safety clutch has been developed and manufactured, which will improve the efficiency of screw conveyors by increasing the axial displacement of the driven half-clutch with a jammed working body, while reducing dynamic loads during overload. When conducting a multifactorial experiment to determine the moment of operation T of the safety clutch of a screw conveyor, the variable factors were the angle of inclination of the working body to the horizon α, the rotation frequency of the screw working body n, and the time of increase in the resistance moment То. Based on the results of experimental studies, corresponding regression equations, response surfaces, and their two-dimensional cross-sections were constructed to establish the influence of controlled factors on the moment of operation of the safety clutch under extreme operating conditions. The obtained regression equation can be used to determine the moment of clutch engagement during the transportation of bulk and lump agricultural materials by a screw conveyor.