DETERMINATION OF THE OPTIMAL DISTANCE BETWEEN THE ROWS OF FLAT HOES AND DISK SECTIONS IN THE TILLAGE UNIT
The development of tillage and sowing equipment in the mounted version, equipped with several types of working bodies, imposes increased requirements on the compactness of the design, which makes it necessary to correctly calculate the distance between the rows of working bodies at the design stage. Analysis of works devoted to the study of the influence of geometrical parameters of the ploughshare of a flat hoe on the distance of the drop coming down with it soil, identified studies in which the trajectory is determined for the incoherent layer of the soil. The mathematical dependence, which allows determining the minimum allowable distance between the rows of flat hoes and disk sections at the given parameters of the flat hoe and the technological process of tillage, is proposed. Analysis of the influence of geometric (the angle of crumbling, the angle of solution, the width of the ploughshare) and technological parameters of the flat hoe operation (the depth of the working bodies and the speed of the unit) on the trajectory of the soil stratum along the ploughshare and after the descent from it made it possible to establish that when designing a multifunctional tillage unit equipped with flat hoes with a solution angle of the paw 100-110º, a crumbling angle of 20-22º, a ploughshare width of 0.12-0.14 m, the optimal value of the distance between the rows of flat hoes and disk sections is 0.50-0.55 m. These parameters of the flat hoe, when the medium-loamy sod-podzolic soil is processed with low tillage to a depth of 0.18-0.20 m with an MTA movement speed of at least 2.5-3.0 m/s allows you to avoid disrupting the tillage technological process loading the soil and blocking the next row of working bodies with soil and plant residues.