Influence of the distance between the working tools of the flat cutter-slitter on the traction resistance of the agricultural implement

The article discusses the issues of choosing the distance between the racks of a combined agricultural implement, namely between a flatcutting share and a slitter, as well as the influence of the choice on the final value of traction resistance, which is also reflected in the economic and technical state of tillage. The growing interest in the issue is the result of intensification of erosion processes on the territory of the Russian Federation, in particular the Stavropol Territory. Both water and wind erosions as well as their joint manifestations in the field are not uncommon. To counter these processes, it is recommended to use combined tools for subsurface loosening of soils with leaving crop residues, one of the examples of which being a flat cutterslitter. The theoretical substantiation of the arrangement of the working bodies on the frame of the combined tool and the calculation of the distance L between the racks of the working bodies are given, its changes L are shown in the calculation depending on the slotting depth a2, the setting angle of length ld and width Bd of the straight bit of the slitter to the bottom of the furrow α0. A field experiment was carried out on the territory of the peasant farm Rus-1, Budyonnovsky district, Stavropol Territory, from November 21 to 24, 2022, which confirmed the theoretical calculations and showed the relationship of the length L between the racks of the flat cutter and the chisel, as well as the change in the traction distance. The processed data indicate that there is Lmin at which there is a decrease in traction resistance by 15 percent or more. Moreover, if an agricultural implement is long enough, the load capacity of the unit and agrotechnical indicators deteriorate, which significantly affects the technical and economic indicators of subsurface loosening.