SUBSTANTIATION OF THE DESIGN OF THE WORKING BODY OF THE SCREW SECTION OF THE COMBINED TILLAGE TOOL

Abstract

The article analyzes the working organs of combined soil-cultivating machines and gives recommendations on the construction of the layout scheme. The design of the helical working body for surface tillage of the soil is substantiated, the surface of which will differ from another well-known helical ruled surface - the helical conoid. Parametric equations of an unfolded helicoid with a horizontal axis of rotation are given. Differential equations of motion of a particle by the surface of the helicoid are compiled, and on their basis the trajectories of motion of soil particles by the surface of the helicoid are obtained. Regardless of the point of entry of the particle onto the surface, it slides along it, while approaching the inner periphery of the surface, that is, to the cylindrical shaft. With an increase in the speed of the unit, the approximation increases. The design of a working body with a lattice shaft is proposed, which will additionally perform the function of a roller.