Abstract
In the system of measures for pre-sowing tillage, special attention should be given to leveling the soil, ensuring an increase in the uniformity of seeding in depth, which has a significant impact on increasing yields. The main solution to this problem is to improve the design of aligners using a mechanical-bionic approach for the analytical description of the optimal forms and parameters of their working bodies. The design of the working body of the spring soil leveler is proposed, the cutting edges of the undercutting wings of which have ridges and hollows in the form of a logarithmic curve with a positive convexity of curvature inside the depressions, developed by the bionic prototype of the mole cricket (Gryllotalpa). Using the methods of agricultural mechanics, the theoretical dependence of the rational depth of the working bodies and the value of the tractive resistance of spring soil leveler on the travel speed, design parameters and physical-mechanical soil properties, which are proved by the results of experimental research on the south carbonated middle loamy black earth have been established. The experimental spring soil leveler provided the reduction of traction resistance by 7...8% (40...49 N) and had the best stability of motion in depth by an average of 1.5 times (± 0.5 cm) in comparison with the serial model of the working bodies of the leveler VPN-5.6 A.
Highlights
Предлагается конструкция рабочего органа пружинного выравнивателя почвы, режущие кромки подрезающих крыльев которого имеют выступы и впадины по форме логарифмической кривой с положительной выпуклостью кривизны во внутрь впадин, разработанная по бионическому прототипу медведки (Gryllotalpa)
In the system of measures for pre-sowing tillage, special attention should be given to leveling the soil, ensuring an increase in the uniformity of seeding in depth, which has a significant impact on increasing yields
The main solution to this problem is to improve the design of aligners using a mechanical-bionic approach for the analytical description of the optimal forms and parameters of their working bodies
Summary
В процессе разравнивания почвы выравплощадей сечений срезаемого выравнивателем гребня Sгр и впадины Sвп. Рассмотрим вариант, когда гребень в сечении выполнен по форме равнобедренного треугольника А// АА /. Согласно рисунку 3, площадь нивателем при перемещении срезаемых гребней почвы во впадины совершается работа по преодолению сил трения почвы о почву.
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