CALCULATION AND SELECTION OF STRUCTURAL AND TECHNOLOGICAL PARAMETERS OF ROTARY RIPPER

Tillage equipment with active working bodies are widely used for surface tillage. Rotary ripper is the most common equipment for soil surface tillage. When designing tillage equipment and working bodies, it is necessary to take into account that equipment must ensure high quality tillage, the ability to change the regime of cutting the soil in a wide range. Comparison of tillage equipment for soil surface tillage shows that the best quality of soil preparation for sowing cereals is provided by active working bodies. But active working bodies also have disadvantages: insufficient earning of stubble and crop residues in the soil, high energy consumption, complex design. Therefore, the study of design parameters of the rotary ripper and parameter dependence on the physical and mechanical properties of the soil is an urgent task today. The aim of the research is to establish the dependence of the quality of the technological process on the design parameters of the rotary ripper and the physical and mechanical properties of the soil. The main design and technological parameters of the rotary ripper are rotor radius, length and width of the knife, angle of shear of the knife, cutting angle, drum diameter, kinematic regime, speed of rotor rotation, pitch of knives, distance between knives, power consumption, the degree of grinding of the soil. The structure and degree of soil grinding depend on the speed of the tillage equipment and the indicator of the kinematic regime. The result of the proposed method of calculating the kinematic regime and optimization of related parameters is to improve agronomic performance and quality of soil tillage. The use of this technique in the design of rotary tillage equipment and substantiation of technological regimes of the rotary ripper will reduce energy consumption for technological operations of tillage and significantly improve the quality of prepared soil for sowing.