Kinematic analysis of conical rotary subsoil loosener for tillage

Abstract

One of the necessary conditions for the creation of effective working bodies that ensure high quality tillage with the lowest possible energy intensity of the process is the search for the optimal geometric and kinematic parameters of the working body of the tillage implement. This problem is successfully solved for working bodies making a simple flat movement. At the same time, a significant proportion of the working bodies of agricultural machines have relatively complex working bodies, which, along with the portable rectilinear movement, rotate around its axis. So, many rotary working bodies rotate around disjoint axes and move progressively in a direction that does not coincide and does not intersect with the instantaneous axis of rotation. One of the promising designs of the working bodies for deep loosening of the soil is a rotary working body conical shape. In the article, the equations of motion of an arbitrary point of the working surface of a subsoiler of a conical shape are obtained. The subsoiler is a screw cone mounted on a bearing, with the possibility of frictional rotational movement. The main research results are obtained on the basis of theoretical study using methods of mechanics, analytical geometry and laws of agricultural mechanics. The rational parameters of the angle at the apex of the cone ψ and the rear cutting angle ε are revealed. Using the obtained equations, it is possible to determine the speed of action on the soil, as well as the acceleration of various points of the working surface of the cone-shaped rotary working bodies, which can be further used to analyze the process of interaction of the tool with the soil and justify its structural and technological parameters.

Substantiation of flat blade parameters for soil loosening

“…To determine the structural and aggregate composition of the soil [17][18] used the method of sifting it on sieves with round holes, and the method described in the studies [19][20]. The distributed soil on sieves was weighed and the relative mass of each fraction was calculated using the formula:…”

Three Dimensional Simulation of Oil Flow Characteristics in Lubrication System of Rotary Tillage Engine

“…A2 is the area at the overcurrent section 2, m 2 . Available: (8) Solving equations: (9) in which, . Cv is the velocity coefficient, and it is determined by experiments that Cv=0.96-0.98.…”

“…At the same time, lubricating oil will deteriorate and fail quickly, which will seriously affect the normal operation of equipment and agricultural production efficiency. Therefore, the rational and effective design of lubrication system is of great significance to improve the power, economy and reliability of crusher (Mukhametshin I. et al, 2020;Shevchenko A.N. et al, 2018).…”

Development and Theoretical Study of the Impact of the Working Body on the Soil

“…When developing combined working bodies, it is necessary to strive not to replace individual operations, but to perform them together based on the use of new principles of influence on the cultivated soil, seeds and fertilizers in accordance with the agrotechnical requirements of a particular crop. At the same time, a new working body or progressive technology should create optimal conditions for the germination of planting material and the intensification of the initial phase of plant development, reliably provide them with moisture, heat, air and nutrients [4][5][6][7].…”