COMBINED DYNAMICS OF COPY SYSTEM OF COMBINED COWLER
Introduction: according to the results of previous studies, it was found that in modern conditions of functioning of the working bodies for sowing small-seeded crops, the most promising are combined designs of openers that provide multi-level sowing with simultaneous application of mineral fertilizers. It should be borne in mind that the seed germination is influenced not only by soil characteristics, but also by observing agrotechnical requirements for the operational characteristics of machines and working bodies. One of the main factors affecting the coulter during the technological operation of sowing is the roughness of the field surface. It has a significant impact on the coulter uniformity and unit oscillation in different planes. Under these conditions, the study of the dynamics of the copying system of the combined opener, describing the characteristics of its movement on the surface of the field, taking into account external influences, is an urgent issue. Materials and methods: the justification of the dynamics of the coulter copying system is based on the theoretical assumptions of domestic scientists and researchers, on mathematical and probabilistic-statistical methods, as well as on the basis of the initial and output design parameters during the implementation of the sowing process. Results: as a result of the analysis of theoretical studies, a diagram of the forces acting on the combined coulter and its suspension is compiled, the dynamics of the coulter motion and soil reaction are substantiated, and dependences for the rear and front coulter groups are obtained. Discussion: the analysis of the scheme, the forces acting on the suspension of the combined coulter allows us to justify the dynamics of the copying system of the working body, taking into account the agricultural background. The established dependencies make it possible to ensure high-quality copying of the transverse relief of the field surface with a combined opener, which in turn will increase the quality of sowing and the uniformity of seed placement and the application of mineral fertilizers.