Investigation and justification of working body parameters of combined soil tillage implement screw section
2025
Bulgakov, Volodymyr | Glazunova, Olena | Trokhaniak, Oleksandra | Rucins, Adolfs | Aboltins, Aivars | Klendii, Mykola | Beloev, Ivan | Vasileva, Valentina
An analysis has been conducted of the working bodies of combined soil tillage machines and recommendations provided in the article regarding the drawing of a layout diagram. There is substantiated the design of a helicoidal working element for surface tillage of the soil, the surface of which differs from another widely known helical ruled surface – a helical conoid. There are given parametric equations of an expanded helicoid with a horizontal axis of rotation. Differential equations of a particle motion on the surface of a helicoid were compiled, and on their basis the trajectories of the motion of the soil particles on the surface of the helicoid were obtained. Regardless of the point of entry of the particle onto the surface, it slides along it, approaching the inner periphery of the surface, and with an increase in the particle arrival speed on the helicoid surface from 1.9 mꞏs-1 to 2.5 mꞏs-1, this approximation increases approximately 2 times. The difference between the angular velocities of the soil particles, moving along the helical surface with friction coefficients f = 0.3 and f = 0, is insignificant and reaches a value of up to 8.5%. A design of a working body with a lattice shaft that will additionally perform the function of a roller is proposed.
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出版者 Latvia University of Life Sciences and Technologies