Abstract
The article presents the methods and results of bionic modeling in agricultural mechanics, which made it possible to substantiate the arrangement and parameters of the working bodies of the loosening compacting discs of tillage rollers adapted to the soil environment using the regularities of the arrangement of thorns on wide rings of the tail in the biological prototype of the girdle tail (Cordylidae). Based on the principle of multi-contact action of the teeth and toothed plates of the roller discs on the soil layer, the coefficient of the arrangement of the discs on the roller is equal to 0.22 ... 0.24, as well as the number of toothed plates and teeth on the working surface of the loosening compacting disc of the roller, which is in the range of 6 ... 12, which is consistent with the arrangement of spines along the circumference of the wide rings on the tail of the girdle. The results of experimental studies, confirming the decrease in the traction resistance of the proposed working bodies of the loosening compacting discs of tillage rollers for surface tillage are presented.
Highlights
To increase yields with resource-saving technologies for cultivating grain crops, it is important to improve the quality of soil preparation
As the analysis of existing designs of serial tillage rollers shows, the available theoretical developments for determining their parameters were mainly aimed at studying the deformation of the compacted soil layer without substantiating the shape of the working bodies of the teeth and toothed plates, taking into account their spacing, affecting the closure of deformation zones cultivated soil layer
The solution of the tasks posed to substantiate the shapes of the working bodies of the loosening compacting discs of tillage rollers is proposed on the basis of the application of the mechanical-bionic approach, which
Summary
To increase yields with resource-saving technologies for cultivating grain crops, it is important to improve the quality of soil preparation. As the analysis of existing designs of serial tillage rollers shows, the available theoretical developments for determining their parameters were mainly aimed at studying the deformation of the compacted soil layer without substantiating the shape of the working bodies of the teeth and toothed plates, taking into account their spacing, affecting the closure of deformation zones cultivated soil layer. The purpose of the research is the development of theoretical prerequisites for the bionic substantiation of the parameters of the working bodies of the loosening compacting discs of tillage rollers for surface tillage
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