Mathematical expression for determining the shock acceleration of the sunflower seeds when shoulding

Abstract

One of the reasons for the crushing of oilseeds when threshing in the threshing-separating device is substantiated. It has been established that the damage to the integrity of the shell of oilseeds can be influenced by the acceleration of the movement of oilseeds in the threshing chamber. The change in the magnitude of the acceleration is capable of influencing the material of the scourge. Mathematical expressions are given to determine the density of the threshed mass, the probability of crushing oilseeds due to crushing with whips, and the pressure inside the mass flow. They are given an expression for crushing oilseeds from the geometrical parameters of a scourge, an expression for the width of the groove of a scourge with a minimum value of crushing, the energy conservation law for one sunflower seed, the stiffness coefficient of the system, as well as the expression for shock acceleration of oilseeds.