The Nature оf Working Surface Wear in the Moldboard

Abstract

The calculation theory for establishing the regularities of the changes in the friction and wear values during the interaction of the working surfaces of plows and furrow slices of different soil types has been developed. The mathematical model of the relative slice movement trajectory along the surface of the recommended trenching plough with semi-digger plough body and obligatory provision of furrow slice slip has been designed. This enables to determine the upper limit of the external friction angle in the soil and the vertical coordinates, where friction and wear reach the maximum point. The exact limits of the optimal values in geometric parameters of the working surface have been established.