JUSTIFICATION OF MECHANICAL PARAMETERS OF SEED MOVEMENT ALONG THE HELICAL SPIRAL OF THE SOWING APPARATUS

Abstract

The results of the process study of seed movement are presented and the rela-tionships between the parameters that affect the relative velocity of moving particles along the helical spiral of the sowing apparatus are established. To describe the motion of particles along a helical spiral, an inhomogeneous second-order differential equation is compiled. A partial solution of this equation made it possible to estimate the effect of the total seed passage time along the helical spiral on the rotation speed of the screw at different angles of inclination of the screw and the length of the helical spiral. A 3D model of a screw seeding machine has been modeled using the KOMPAS-3D software package. Studies have been carried out and theoretical dependences of the relative speed of movement of seeds (particles) along the helical spiral have been obtained for various parameters of the sowing apparatus. Analytical dependencies for determining the relative speed and seeds movement acceleration on the spiral are established, and their changes are also investigated from the time of its passage and from the radius of the helical spiral at various seed friction coefficients.