Analytical Modeling Soil Reaction Forces on Rotary Tiller

Abstract

Rotary tillers with flat tines are widely used in agriculture. In this study, the power requirement of an active tillage tool was investigated using a theoretical procedure. The goal of this work was to determine and analyze the soil resistance forces on the tine of rotary tiller. The laws and rules of theoretical mechanics were applied in the research. Theoretical studies obtained analytical relationships for determining the soil resistance forces acting on the chamfers and side surfaces of the tines of the rotary tiller, as well as the torques associated with these forces. The analysis of the obtained analytical expressions showed that the forces of the tiller tine is mainly influenced by the mode of operation of the tiller, the design parameters of the tine and the physical and mechanical properties of the soil. With an increase in the index of the kinematic mode of operation, λ, which is the ratio of the peripheral speed of the tine to the forward speed of the tiller, the resistance force of the flat tine decreases, and then takes a negative value. At λ > 2, the resistance force of the tine is directed towards direction of movement. In this case, a driving force is formed, the maximum value of which is reached at λ =2-2.2

Physico-mechanical properties of seed pile of fodder crops

“…Seed production is the most important factor in the development of agriculture in Uzbekistan. The production of seeds of high-yielding varieties is very important for obtaining a high yield and improving the quality of agricultural products [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. A seed heap is a material obtained in the process of combing clover plants with a comb of combing drum of the harvesting machine.…”

Placement of working bodies on the frame of the tool plow-ripper

“…As evidenced by domestic and foreign experience, chisel plows for non-moldboard soil are widely used. Promotes the preservation and concentration of humidity, improve processes of aeration infiltration, and avoid the growth of water and breeze erosion of soils [6][7][8][9][10][11][12][13][14][15]. A variety of chisel implements that provide a reduction in the degree of damage to the surface vegetation and a better leveling of the cultivated field are plows-rippers with racks of working bodies inclined in the transverse vertical plane F Maiviatov [1,2], I Ergashev [3], N Rashidov [5,8,21], B Mirzaev [6, 7-9, 12, 13], O Hamroyev [4,7], N Aldoshin [8,22], F Mamatov [3, 7-18, 20, 21, 24] and other songwriters.…”

Roller-combing machine for preparation of combs

“…To date, number investigate had been conducted aimed at creation and formation machines and their working bodies for the forming of rib with concurrent preparation for sowing, justification of technological processes and parameters. Studies on the development and application of ridge-forming rollers and the rationale of options and study the trial of cooperation working parts in the soil conducted by Z. Batirov [1][2][3], R. Norchaev [4], A. Kiyamov [6,7], T. Razzakov [3,7], F. Mamatov [3,8,10,12,13,15,[19][20][21][22][23][24][27][28][29][30], N. Aldoshin [7,12,24,30], B. Mirzaev [20,21,23], H. Ravshanov [24], S. Gapparov [25], on the development and application of ridge-forming rollers. Nevertheless, these explore has not quite studied problems developing comb-forming roller with elastic stems mounted a combmaking machine, which provides good quality preparation ridges to cotton crop.…”