Study of the operational and technological indicators of the work of arrow units equipped with pre-pullers

Goal. Determination of the influence plow front plows on its traction resistance and operational technological indicators unit transverse profile surface plowed field. Methods. Theoretical studies were carried out using main provisions theory agricultural machines, theoretical mechanics higher mathematics. The corresponding calculations a PC in Mathcad 15.0 software environment, their graphic interpretation was implemented Grapher 20 editor. physical objects experimental research plowing machine-tractor units based KhTZ-16131 tractor, which aggregated with PLN-5-35, PNB-5-40 PNYA-4-42. first these tools equipped device for measuring resistance. Results. impact use implements plows, angle cutters second-level bodies (two-tier plow) statistical characteristics depth, width unit, longitudinal field studied. Conclusions. or second-tier housings ensures homogeneity variances depth fluctuations. On other hand, without installed it leads to natural significant increase dispersion fluctuations soil cultivation normalized correlation function this process is characterized by presence significantly pronounced periodic component. Under condition it, period component practically corresponds working implement. collapse 25° determines deforming effect environment form detachment, not shear. As result, provides statistically and, moreover, reduction plow. For tool PLN-5-35 conditions studies, 1.1 kN 3.3%.