Исследование процесса скольжения кольцевых рабочих органов борон и почвообрабатывающих агрегатов в почве | Study of the sliding process of harrow ring working bodies and soil-tillage units in soil

5 ill.

英语. Summary (Ru, En)

俄语. Presented are the results of theoretical and field study of the ring of a ring roller when it slides across the field at the angle of attack. By calculation, the sliding speed of the roller ring is determined depending on the technical and kinematic parameters of the ring. The analysis of the roller ring depends on the angular velocity of the roller, the diameter of the ring, the angle of attack of the ring and the depth of soil tillage. The sliding speed is also influenced by changes in soil moisture and hardness, its mechanical composition, speed of movement and the shape of the working bodies. Field studies were performed on medium loamy leached chernozem soil of the Novosibirsk Region. The experiment was carried out with rings that are used on the Leader tillage units and ring harrows Leader BKM-3.6 and Leader BKS-8. The study was carried out in 2 periods. The first period was characterized by relative soil moisture of 19.4% and soil density of 1 g/cm3, the second – by moisture content of 14.0% and density – of 1.35 g/cm3. The slip coefficient was determined for rings with a diameter of 500, 600 and 700 mm at operating speeds of 2, 2.8 and 3.3 m/s, the angle of attack of the ring was set to 20, 25 and 30 degrees. The most rational parameters of rings for harrows were established: ring diameter – at 600 mm; angle of attack – at 25 degrees; working speed in soil with density of 1 and 1.35 g/cm3 – 3.3 m/s. For tillage machines with rollers with a diameter of 500 mm, it is recommended to set the angle of attack of 20 degrees. The working speed in the soil with density of 1 g/cm3 should be 3.3 m/s, with density of 1.35 g/cm3 – 2.8 m/s.

10 ref.