Scientific Journal of KubSAU

Improvement trends of methodical approaches in complex cereals harvesting in optimal terms with technical support substantiation are considered. Structure and technical equipment are considered as well

In the article, the question of the value and location of disk tillage tools in the system of machines and the most common crop rotation tillage technologies has been reviewed. We have also identified the problems of disk tillage tools using and the ways to solve them

The article describes the performance analysis of disc harrows and harrows. The basic types and their purpose have been presented. Particular attention is paid to the peculiarities of optimization of geometrical and operational parameters of spherical disks, depending on soil conditions

In the article the question of the importance of the location of the disk of the workers in the combined aggregates. We have also identified the challenges of technological bundling combined aggregates disk working bodies, depending on destination and condi-tions of work

The results of tribological researches on influence of friction on contact interaction of tobacco leaves with working bodies of the machines for their harvesting and further green leaf processing are presented. Coefficients of static and sliding friction are measured

The article deals with the question of economic efficiency of moldboard tillage using the developed combined ploughshare plow as a result of experimental studies, determining the degree of traction resistance of the reversible plow tillage combined with reversible plow. We have also found main economic indicators of the manufacturing operation and calculation of efficiency of investments for the implementation of the combined plow

The article deals with the question of experimental studies determining the degree of traction resistance of reversible ploughs, when processing a combined plow. We have determined the optimal geometric dimensions of the developed additional working bodies experimentally

The article deals with the question of tillage with a turnover of reservoir devices for its implementation. We have also identified problems that exist in this process step. The ways of their solutions and their implementation have been proposed as well

Tillage plays an important role in the production of cereal and grains. The issues of improving the methods applied for soil treatment aimed at improving its quality significantly influencing crop yield have been considered. Reducing of all types of costs: energy, labor, money was also taken into consideration. In this article, based on numerous studies we have proposed to use the effect of oscillatory motion in the working body of tillage, improving the design of tillage machines, reducing the metal consumption of the machine, the intensity of the process while increasing quality of work. The article reveals issues related to embedding of the new tillage of the working body running in a horizontal plane and having special tabs (blade), allowing it to make a reciprocating rotational motion. This working body provides the undercutting of a soil layer and root system of weeds, the crumbling of the soil layer and its interaction with the working surfaces of the blades. The conditions of the sliding soil layer on the surface of the working body and reducing the pressure of the reservoir to the working body are proposed. It decreases the compression of the reservoir and the tractive resistance. We have substantiated the conditions for reciprocating rotational motion of the proposed disk of the working body in the working plane close to the horizontal, when interacting with a layer of the soil

The creation of machines and tools of new generation, which represent high-efficiency, highperformance and take less energy and metal is a global challenge for the modern science. In this article, based on numerous studies, it is proposed to use the effect of oscillatory motion in the working body of tillage, improving the design of tillage machines that aims to reduce metal consumption, energy intensity and improve quality of work. A new tillage working body, running in a horizontal plane and having special tabs (blades) allowing it to make a reciprocating rotational motion has been presented. The application of this working body provides agronomic, environmental, energetic and economic efficiency by trimming the layer of the soil and root system of weeds, crumbling soil layer during its interaction with the working surfaces of the blades. Due to the reciprocating rotational motion, the cleaning of the working body is observed. The constructive and technological scheme of the working body and the scheme of forces acting on the proposed working body at the moment of penetration and the rotation of the working body at a certain angle are offered. The conditions for the reciprocating rotational motion of the working body are obtained as well as differential equations allowing considering the process of movement of the working body. The article also reveals expressions for the elementary forces acting on the surface of the blade from the moving layer of soil