Selection of parameters of the disc working bodies of the ripping-separating machine for soil treatment

Abstract

Mechanical tillage with the help of a soil-cultivating ripping-separating machine is based on the combination of the operation of crushing and separating the soil along the depth of the cultivated layer. When moving the plowshare at a depth of 0.03–0.1 m, the movement of soil along the plowshare is complicated by the formation of an additional soil layer in front of it. To avoid this phenomenon, it is proposed to install passive freely rotating disks on both sides of the plowshare. The purpose of this study was to determine the most rational design parameters and modes of movement of disk working bodies. As a result of a theoretical study of the interaction of soil particles with the surface of rotating disks, the dependences of the thickness of the soil layer in front of the plowshare on the radius of the disk and the ratio of their rotation speed to the forward speed of the machine were obtained. As a result of experimental studies, the influence of the limiting distance between the disks and the angles of inclination on the thickness of the soil layer in front of the plowshare was determined.