11. Theoretical Research on a Vertical Rotary Soil Tillage Unit

By the theoretical research on a vertical rotary two-knife soil tillage unit we elaborate on a time- and angle-defining method at the crossing of the vertical knives’ trajectories in the forming of the soil chip.
The coordinates of the vertical knives’ trajectories crosspoints are calculated to define the initial and the final cutting points of the soil chip.
The time needed for cutting the soil chip is determined depending on the constructive parameters and the operating mode of the performing unit. The coefficient of using the time spent on soil chip cutting and the coefficient of using the working width of the vertical rotary soil tillage unit are determined as well.