Sachenko V. Substantiation of parameters and operating conditions of work of multioperational till-sowing machines to tractors of 1.4 F drawbar category

Object – multifunction till-sowing machine specialized working organs for soil tillage and sowing agricultural cultures, production process of soil-tillage and sowing cultures in the spring and autumn periods. Objective - to promote mechanized works efficiency on account of complete set application of variable soil-tillage and sowing working organs in the multifunction soil-till-sowing machine on the basis of parameters grounding and work conditions. Methods - classic mechanics and theory of probabilities. The experimental researches conducted on tractor Т-150К with station uses, the quality indexes determinations of soil-till and sowing working organs conducted in the production conditions. The processed experiments results by mathematical statistics methods. Optimum production area of machines complex with the new machine is grounded on the basis of physical descriptions of mechanized preparation soil-tillage and sowing agricultural cultures process, that is get by means of the statistical imitationdesign of soil-till-sowing works, method of iteration, statistical evaluation of experimental datas and graph analysis. Innovation – the machine rational parameters with the variable working organs; module principle of machine aggregate construction with the set of multifunction working organs; naturally conditioned fund of time for soil-till and sowing cultures preparation in the spring and autumn periods; dependence of soil-till-sowing process efficiency indexes on descriptions of the agricultural enterprise production program; optimum production area for the soil-till-sowing machines complex on base tractors of 1.4 F drawbar category in which complement the develop machine enters. The results inculcate of researches in the farmer economies "Lyucerna" and "Plugatar" of Kagarlycki district of the Kiev region. Sphere - machines and facilities of agricultural production mechanization.