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

Figure 1: Life Cycles of the Serial and Proposed Plowshare Considering the wear rate stable for the blades of a serial plowshare, its resource can be determined by the following dependence: (1) (2) where Т 1 1 - the period of operation of the proposed plowshare; Т 1 2 - the period of stable operation of the proposed plowshare. The best way to increase the efficiency of the proposed ploughshare can be considered to increase only the normal period of operation to the service life of three serial ploughshares. This can be expressed by curve 2 in Figure 1. As noted above, the service life of a serial plowshare is set by the average wear rate of the blade of the plowshare. In this regard, in order to implement the recommended method of improving the efficiency of the proposed plowshare, it is necessary to ensure 3 times less wear intensity of the blade of the plowshare than that of a serial plowshare or to increase the resource reserve (reserve - structural wear resistance) by the same number of times. Having studied and analyzed the studies conducted by many scientists [1-10], it is possible to determine the flooding of the ploughshare blade by adding up four generalized factors: (3) And so the intensity of wear is determined by the physical and mechanical properties of the soil ( А 1 ), physical and mechanical properties of the material and the solid (cutting) layer (( А 2 ) and loading conditions (A3) as well as structural (A4) and technological (A5) parameters of the working body. All of the above factors can be quantified using several indicators. If we imagine the dependence of the wear intensity on certain components in the form of functions, we get: (4) Where В ,h,L -width, thickness and length of the ploughshare, m; h 0 - the thickness of the blade edge, m; α - angle of sharpening of the ploughshare blade; β - the angle of the ploughshare installation to the bottom of the furrow; υ - the speed of the ploughshare, m/s; Е - modulus of elasticity, MPa; k t - the coefficient of friction of the soil on the blade; σ p - destructive contact stress on the edge of the ploughshare blade; a - plowing depth, m; Н t - soil hardness; w t , - soil moisture; с t - soil composition; Н о - hardness of the main material of the ploughshare blade, HRC; Н э - hardness of the deposited material of the ploughshare blade HRC ; Р ,R - accordingly, the pressure on the blade of the ploughshare from the back and front sides, kg / m 2 . Based on numerous studies, it has been established that the total number of factors influencing the wear rate of the ploughshare is about twenty (Figure 2). If we consider in detail, it can be noted that when the ploughshare is worn out, not all factors have a decisive influence on its bluntness. Based on the research data Т л = Т 1 + Т 2 + Т 3 Т 1 л = Т 1 1 + Т 1 2 I=f ( А1+А2 + А3+ А4+ А5) I =f(А1)= f (Н t ,w t ,с t, ); I =f(А2)= f (Н о ,Н э );I =f(А3)= f (Р,R) I =f(А4)= f (В,h,L,h 0 ,α,β); I =f(А5)= f (υ,E, k t ,σ p, a) or I =f (Н t ,w t ,с t, Н о ,Н э, Р,R, В,h,L,h 0 ,α,β, υ,E, k t ,σ p, a) Global Journal of Science Frontier Research ( D ) XXIII Issue IV Version I Year 2023 6 © 2023 Global Journals Evaluation of the Effectiveness of using the Plowshare where, Т 1 - the run-in period of the serial plowshare; Т 2 - the period of stable operation of the serial plowshare; Т 3 - the period of work with the worn blade of the serial plowshare. Analyzing the life cycle of a serial plowshare, it can be noted that the second period is the defining period of the components Т 2 . Therefore, it can be assumed that an increase in the service life of a serial plowshare is possible due to the lengthening of this period, and at the same time the third period of T3 can be excluded from the life cycle. Then the resource of the proposed plowshare can be determined by the following dependence: