Global Journal of Science Frontier Research, D: Agriculture and Veterinary, Volume 23 Issue 4
[1-5] and the above, it can be concluded that, in relation to plows for basic tillage, the main parameters affecting the wear rate of the working surface of the blade and, accordingly, the resource of the plowshare are: • Properties of the material from which the plowshare is made ( H ); • The degree of change in the speed and pressure of the soil on the blades of the ploughshare ( υ , Р ); • Soilproperties ( с t ). IV. D iscussion of the R esults O btained We will try to link the resource with the bluntness of the plowshare, which is associated with the study of the wear process under the action of resistance forces. Analysis of changes in the geometric dimensions of the ploughshares shows that the blade wears out under the influence of the pressure forces of the soil layer on the wedge Q and the reaction of the bottom of the furrow R (Figure 3). R, wear occurs and during operation, the blade changes its geometric dimensions compared to the initial one, which can be seen by moving the sock from the origin O to the point O 1 . At the same time, the reaction forces of the soil acting on the front and rear parts of the blade increase, the intensity of wear I increases in both directions. It is determined by the formula [8]. (5) Where I Q , I R – the intensity of wear, respectively, of the front and back surfaces of the blade. The intensity of wear of the ploughshare blade with unchanged mechanical composition and soil moisture, as well as unchanged properties of the material of the working body depends mainly on soil pressure and is expressed by formulas and (6) Where К п – the coefficient of proportionality, depending on the physical and mechanical properties, the state of the soil and the geometric dimensions of the blades of the ploughshares, Н га мм ⋅ . According to formulas (5) and (6), you can write (7) Figure 2: Factors Influencing to the Ploughshare Resource , , Global Journal of Science Frontier Research ( D ) XXIII Issue IV Version I Year 2023 7 © 2023 Global Journals operation, it tends to reach a position perpendicular to the ordinate of the op. Under the action of forces Q and Evaluation of the Effectiveness of using the Plowshare As a result, between the directions of these forces, the acute angle α gradually transforms into a blunt angle θ . As the geometric shape of the blade of the ploughshare changes, the direction of action of these forces changes. With prolonged operation under the influence of reservoir pressure Q, the wear of the nose of the blade increases along the axis of the OX , in this regard, the surface of the OK tends to a position perpendicular to the abscissa of the OX . The direction of action of the force R also changes. After some
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