Substantiating the Parameters of a Two-drum Roller for Tillage

Abstract

The article reveals the research urgency. A device for an experimental two-drum roller, a flow-chart of its operation, a design model and an analytical relationship for substantiating its main design parameters are described. The dependence of the horizontal component of the roller on its operating width at different diameters of the inner drum is shown. It is proved that to reduce energy costs and meet the agrotechnical requirements for tillage, the diameters of the inner and the outer drums (Dk2 and Dk1) should be 0.25 and 0.5 m, respectively, with the number of straps on the outer and inner drums being ns1 = 16 pcs and ns2 = 30 pcs. The results of experimental studying the two-drum roller made according to the substantiated parameters are given. The experimental studies proved the ability of the two-drum roller to provide the due structural composition of the seed layer, with soil lumps exceeding 50 mm being totally absent, a better evenness of the soil surface as compared to the one obtained with the traditional type of treatment, earlier and friendly sprouting of spring rape and the yield increase by 21.7%.