Study in dependence of operating mode on completeness of haulm removal

Abstract

Row and industrial crops in the overall structure of crop production occupy a significant share. A special role is assigned to the production of root and tuber crops. A distinctive feature of the technology of cultivation of root and tuber crops is that before or during harvesting the tops are removed. The article presents the results of experimental studies to substantiate and assess the effect of the kinematic operating mode of a rotary topper chopper on the completeness of removing the tops of root and tuber crops. As the factors determining the percentage of completeness of haulm removal, the rotor speed and the speed of the haulm chopper were chosen. These factors, along with the diameter of the cross-section of the working element, have the greatest influence on the quality of the implementation of the technological process of grinding the tops of potatoes with the simultaneous destruction of the larvae of the Colorado potato beetle. During the experiments, the methodology of the mathematical theory of planning experiments was used. To process the experimental results, we used the software developed by the authors in the Visual Basic for Aplications language in the MS Excel environment. With the help of the constructed mathematical model, the optimization problem was solved and the values of the operating parameters of the topper chopper were determined, which ensure the maximum percentage of the completeness of the haulm removal. The values of the operating parameters of the topper chopper, at which the highest percentage of haulm removal is achieved, turned out to be as follows: rotor speed -1750.340 min -1 ; speed of movement of the unit -2.922 m•s -1 .

Theoretical aspects of root crop grinder development

“…According to the research [9][10], when selecting the number of unloading blades, it is advisable to approximate their calculated value to the nearest even number.…”