The study of the process of soil layer body turnover with a disc cutter on ungrubbed clearings

The article aims at substantiation of technological parameters of the disc cutter for the main processing of the soil on forest land. The article presents analytical studies of the process of soil layer turnover by the combined plow body, and the principle of operation of a new disc cutter body. The article considers the reforestation technologies that allow avoiding the uprooting of stumps, causing the least harm to the environment and saving material resources. It is established that the off-road capacity of disc tools on ungrubbed clearings significantly exceed that of plough shares. The distinctive advantage of disc cutters is that they could be individually attached to the unit frame, thus avoiding clogging of the body with soil and plant residues. The design of the disc cutter body is proposed, which ensures the required quality of the soil layer turnover in the cuttings. Experimental studies were carried out, and a formula was obtained that allows determining the optimal parameters of the disc cutter body. The results of the study of the dependence of the unstable equilibrium angle of the soil layer on the structural and technological parameters of the tool are presented. The use of the proposed design minimizes costs by increasing the productivity of tools and by resource and energy saving. The proposed disc cutter body may be used in new designs of multifunctional tools developed for rational resource-saving technologies of reforestation.