A.S. Soyunov, V.V. Myalo, E.V. Demchuk
Omsk State Agrarian University after P.A. Stolypin, Institutskaja Sq., 2, Omsk, 646008, Russia
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Summary. Necessary quality of soil cultivation is not always achieved by disk plough-harrows. To solve this problem the improved working body, flat hexagonal disk, was proposed. The aim of the investigation was to determine the dependence of the functional efficiency of the soil tilling implement with flat hexagonal working bodies on its mechanical and technological parameters. The technological process of interaction of the flat hexagonal disk working body with soil and plant residues was a subject of inquiry. To assess the quality of the tillage depending on the approach angle (15, 25, 35 deg), machine speed (6, 8, 10 km/h) and processing depth (60, 80, 100 cm) the laboratory tests in the soil channel and field researches at Siberian zonal machine-testing station were carried out. On the surface of the soil channel the stubble cover with weeds was simulated. The ratio of stubble remaining in the soil after the experiment to the weight of stubble used for imitation of the stubble cover served as a criterion of evaluation of the safety of stubble on the surface of the field. The relation of a difference in the weight of mulch, scattered over the soil surface before the test, and that, gathered after the passage of the machine, to the initial weight of mulch was used as a criterion of embedding of vegetative mass in soil. The prototypes of flat hexagonal disc carried out quality tillage with ridgeness no more than 4 cm, the stubble integrity 86…94 %, the ground straw mass integrity 60 %. Reduction in the presence in soil of erosion-dangerous particles to 1 % allows using flat hexagonal discs in areas exposed to wind erosion.
Keywords: disk, disk tool, tillage, stubble, stubble integrity.
Author Details: A.S. Soyunov, Cand. Sc. (Techn.), Assoc. Prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); V.V. Myalo, Cand. Sc. (Techn.), Assoc. Prof.; E.V. Demchuk, Cand. Sc. (Techn.), Assoc. Prof..
For citation: Soyunov A.S., Myalo V.V., Demchuk E.V. Estimation of the possibility of using the hexagonal disk working units in the disc plough-harrow. Dostizheniya nauki i tekhniki APK. 2015. T.29. №1. pp. 55-57 (In Russ)