Investigation of the regularity of movement of furrow slice at tillage with a plough with ripping moldboard

The theory of the analysis of kinematic behaviour of the movement of furrow slice ripped by plough hulls on the example of ripping mouldboard has been developed. Working out the equation of surface of the mouldboard and using the analytical dependencies of the relative and absolute motion trajectories of the blade movement the mathematical models are received describing the patterns of motion of soil particles, at tillage with hulls with mouldboards of ripping type.The received equations of absolute trajectory of the movement of the furrow slice allows to make the technological assessment of tillage and the equation of relative trajectory establishes the necessary conditions of the movement of furrow slice along the mouldboard with sliding and gives opportunity to reduce largely the traction resistance of plough frame. The practical significance of the developed theory is that given the substantiated function of the change of angle γ(z) and the shape of the directing curve it is possible to create a perfect, from the viewpoint of the least tractive effort, croplands equipment in the design stage. Keywords: Plough, Mouldboard, Kinematics, Furrow slice sliding, Reduction of tractive forc