Energy assessment of intensive protective tillage

Abstract

The study analyzes the traction resistance of chisel ploughs when working on light clayey chernozems, widespread in the arid southern part of Russia. This study allows concluding that in the theoretical description of the process of deep loosening of the soil, the influence of the square of the working speed of the machine-tractor unit could be neglected. The use of linear dependence not only provided an increase in the convergence of experimental and theoretical studies but also simplified the analysis of the results. So, for example, the use of a linear trim based on the results of experimental studies made it possible to derive the average values of the empirical coefficients for classic arrow-shaped plows: fp=0.4; k p=15.15 κN/m and εp=6.15 κN·s/m2, and for plows with a pair-block arrangement of working bodies: fp=0.4; kp=21.45 κN/m and εp = 1.61 κN·s/m2. The study found that the use of a pair-block arrangement of working bodies on subsoiler ploughs, in comparison with their arrow-shaped arrangement, helps to reduce the resistivity during chiselling by about 14%. At the same time, the share of energy consumption for useful soil deformation increases to values of more than 80%, while for classic subsoiler ploughs this figure is about 50%.