Abstract
The study aims to justify the design scheme and main parameters of the combined aggregate for soil preparation for cotton sowing on ridges. The authors have developed the technology of soil preparation for cotton sowing on ridges and the aggregate for its implementation. The technology and design scheme of the developed aggregate are presented. The unit consists of a mouldboard deep loosener with a sloping rack and a ridge maker. The basic principles and methods of classical mechanics, mathematical analysis, and statistics were used in this study. The optimum constructive scheme of combined aggregate is grounded. It was established that to provide formation of new ridges instead of existing ones on fields without stems of cotton with the required degree with minimum power consumption working surfaces of inclined deep looseners equipped with mouldboards and rippers should be turned to each other and shifted relative to each other in a longitudinal plane. The formation of ridges to the required degree with minimal energy input is ensured at a width and length of the subsoiler's chisel, respectively 5 and 20 cm, the width of the wing width 21 cm, wing length between 47 and 49 cm, minimum longitudinal spacing between subsoilers 35 cm.
Highlights
The existing technology has a high material and energy intensity, as it consists of several agro-technical activities carried out by separate units. All this leads to lower productivity, excessive compaction of soil, intensive drying, and delayed soil preparation for sowing
It was established that to ensure the formation of new ridges instead of existing ones on fields without cotton stalks of required degree with minimum energy consumption working surfaces of inclined subsoilers equipped with mouldboards and rippers should face each other and shift relatively from each other in the longitudinal plane
3. The formation of ridges to the required degree with minimum energy input is ensured when the width and length of the chisel respectively 5 and cm, width of the wing share cm, wing length between 47-49 cm, the minimum longitudinal distance between subsoilers 35 cm
Summary
Research on creation and application of machines for tillage and preparation of soil for seeding on ridges, study of their performance and justification of parameters, as well as study of processes of interaction of working bodies with soil were carried out by F.Mamatov [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16], [18,19,20,21,22,23], [28,29], B.Mirzaev [5,6,7,8,9,10,11,12], [14,15,16,17,18,19,20,21], [23], 28-29] U.Umurzakov [4, 19], N.Aldoshin [3, 10, 11, 19, 20, 24], D.Chuyanov [5, 27], U.Kodirov [6, 24], H.Ravshanov [4,5,6], [20], [25,26], H.Fayzullaev [25], I.Kurdyumov [31], E.S.Zykin [31-38] and others.The technologies of preparation of fields without cotton stems for sowing on ridges, currently used in agricultural production of the Republic, have several drawbacks. The existing technology has a high material and energy intensity, as it consists of several agro-technical activities carried out by separate units. All this leads to lower productivity, excessive compaction of soil, intensive drying, and delayed soil preparation for sowing. The study aims to justify the design scheme and main parameters of the combined aggregate for soil preparation for sowing cotton on ridges
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