THE EQUATION OF MOTION TRAJECTORIES OF A TWO-DISC COULTER WITH CONICAL FURROW-FORMING RIDGES

Abstract

When cultivating agricultural crops, pre-sowing tillage and sowing are of the utmost importance. For narrow-row sowing of agricultural crops, it is promising to use the design of a combined single-disc coulter with symmetrically arranged ridges-furrowers operating at zero attack angle. (Research purpose) The research purpose is in determining the equation of the trajectories of a two-disc coulter with conical ridges-furrowers. (Materials and methods) The yield of agricultural crops depends on the quality of sowing by 25-30 percent. At present, when designing sowing machines, the advantage is given to disk combined coulters that work well on all types of soils. (Results and discussion) The combined disk coulters perform several operations. They form grooves to accommodate the seed, seal the bottom of the groove, roll (align) the seeds in the groove bed and close the groove with loose soil. Disc coulters work well in difficult conditions on heavy and moist soils. The article presents the methodology for calculating the trajectories of a two-disc coulter with conical ridges-furrowers. The development of two-disc coulters without attack angle and tilt of the discs is a promising direction. (Conclusions) The proposed method of calculating a two-disc coulter with ridges-furrows for seeding allows us to connect the design parameters of the proposed coulter and the technological parameters of the process under study, algorithmize calculations to assess the shape, size and deepening of the elements of the coulter and the soil gap formed by it.