Development of a frontal plow for smooth, furless plowing with cutoffs

Abstract

The existing plows of smooth furless plowing do not provide a full turnover of layers within their own furrow and the incorporation of weeds, they have a high energy consumption. The aim of the study is to substantiate the parameters of the frontal plow cut-off, which ensures a high-quality performance of the technological process according to agrotechnical requirements with the lowest energy consumption during smooth furless plowing. An improved technology of smooth furrowless plowing has been developed, in which at first the seam is given a polygonal shape, then turned 180° within its own furrow. A frontal plow with offsets has been developed to implement the proposed technology. In the research, the laws and rules of theoretical mechanics, mathematical statistics, mathematical planning of experiments and methods of strain gauge were applied. It has been established by theoretical and experimental studies that when the frontal plow is cut off in the form of a triangular wedge, its height is 22 cm, the wing opening angle is 32°, the side edge angle is 36°, the required quality of smooth plowing is provided with the lowest energy consumption. With longitudinal distances between the plowshares of the body and the cut-off of at least 27 cm and between the disc coulter and the cut-off of 16 cm, the required quality of soil cultivation of the front plow is ensured in accordance with the established agro technical requirements.