The balance of the diamond-shaped plow in the horizontal plane

Abstract

Diamond-shaped plow, opening the furrow with an inclined wall, reduces the area of the side support, which gives rise to the problem of maintaining a stable course of the plow. At the same time, the wider groove of the diamond-shaped case allows the energy-saturated tractor to move the right wheels on it and thereby shift the line of the plow thrust to the right, which in turn unloads the side support and reduces the traction resistance of the plow. Replacing field boards on all cases with a common field board installed on the last case changes the location of the balancing reaction of the furrow wall and its size and, as a result the plow’s traction resistance also changes. In the vertical plane of the projections, this corresponds to the displacement of the friction force of the field board along the line of action. In a diamond case, due to a different shape of the cut layer, the point of application of the resultant soil pressure on it is shifted in a horizontal plane closer to the toe of the plowshare compared to a conventional case. The studied dia-mond-shaped plow is hung on the tractor in a two-point scheme with the passage of the horizontal projection of the central rod through the point of attachment of the lower rods to the tractor. This point is the in-stantaneous center of rotation of the plow in the horizontal plane. When considering the plow scheme with field boards, identical on all cases (production), we will conditionally present it with one field board on the middle case, which facilitates the theoretical analysis. The continuous change in time of the forces acting on the working and additional bodies is a specific feature of the working conditions of agricultural units. On this basis, these efforts are considered as stationary random functions of time, and for studying dynamic objects under their influence, they use a statistical method based on the concepts of the theory of stationary random processes.