Global Journal of Science Frontier Research, D: Agriculture and Veterinary, Volume 23 Issue 4

It can be seen from formula (21) and Figure 4 that the resource of the working body (at constant angles of installation of the working body to the bottom and walls of the furrow) is directly proportional to the maximum permissible wear and inversely proportional to the density and hardness of the soil, the angle of sharpening of the blade, the square of the speed of the unit and the parameters of the formation and the occipital chamfer. Figure 4: Graphs of the plowshare resource change. a – from the maximum permissible wear (1, 2, 3,) width (4, 5, 6) and angle (7, 8, 9) of the occipital chamfer and at a soil hardness of 3.5 MPa (1, 4, 7): 5.3 MPa (2, 5, 8) and 7.1 MPa (3, 6, 9); b – from the speed of movement of the unit (1, 2, 3) and the depth of treatment (4, 5, 6) with a soil hardness of 3.5 MPa (1, 4); 5.3 MPa (2, 5) and 7.1 MPa (3, 6).\ As can be seen from Figure 4, the parameters of the occipital chamfer have the main influence on the resource of the ploughshare. The volume of the removed soil and, accordingly, the pushing force R depend on these parameters. However, these parameters change during operation (wear) arbitrarily and are considered unmanageable and. In this regard, a scientific hypothesis has been put forward about the possibility of developing such technical solutions for the ploughshare, which contributed to reducing the volume of crushed soil and, accordingly, the pushing force, which will eventually improve the self-sharpening of the blade and prolong the service life of the ploughshare [13, 14]. V. C onclusion The main criterion for the rejection of ploughshares is their failure to provide a given processing depth (quality of work) during operation, a deviation from which occurs, as a rule, due to an arbitrary increase in the parameters of the occipital chamfer of the ploughshare during operation. The resource of the ploughshare decreases with increasing width and angle of the occipital chamfer, and at the same time, with increasing width, especially in hard soils, the resource decrease is observed at a more intensive rate. It was found that an increase in the width of the rear chamfer by 1 mm and the angle by 1 0 reduces the life of the plowshare by 33% and 12%, respectively, and an increase in the plowing depth by 1 cm reduces the life of the plowshare by 16%. It has been proved that the reason for the plough surfacing due to an increase in the soil reaction is an increase in the parameters of the rear chamfer and the depth of plowing. In order to minimize the influence of the parameters of the rear chamfer on the stability of the plow, it is necessary to develop such technical solutions for the plowshare, which contributed to a decrease in the volume of crushed soil and, accordingly, the pushing force during operation, which will eventually improve the self-sharpening of the blade and extend the life of the plowshare. R eferences R éférences R eferencias 1. Mironov D.A. Substantiation of structural and material science parameters that ensure an increase in the resource and efficiency of ploughshare working bodies. Diss. for the degree of Candidate of Technical Sciences, Moscow, 2017 –p. 13 2. Liskin, I.V. Substantiation and development of a new plowshare of the VIM design / I.V. Liskin, D.A. Mironov, S.A. Sidorov, etc./ Innovative development of the agroindustrial complex of Russia on the basis of intelligent machine technologies: Collection of scientific documents. International Scientific and Technical conf. – M.: VIM, 2014. – pp. 101-104. 3. Sidorov, S.A. Justification of increasing the operational and resource characteristics of plowshares/Agricultural machines and technologies. 2013. – No. 6. – pp.14-17. 4. The influence of the ploughshare design and surfacing reinforcement on the hardness of its nose / V.A. Denisov, N.Yu. Kozhukhova, G.V. Orekhova, M.A. Mikhalchenkova // Tractors and agricultural machines. 2016. -No. 7. -pp. 36-40. Global Journal of Science Frontier Research ( D ) XXIII Issue IV Version I Year 2023 10 © 2023 Global Journals Evaluation of the Effectiveness of using the Plowshare