Degree of soil grinding by rotary roller

Abstract

High-quality preparation of the soil for sowing various crops is very important for obtaining optimal seedlings and creating the best conditions for plant development. For this purpose it is necessary to have in the top layer of soil not less than 50...60 percent of structural units with the size of particles of 0,25 ... 10 millimeters.

To reduce the energy consumption of the process and improve the quality of tillage based on knowledge of the physical and mechanical properties of the soil, it is necessary to use such methods of deformation so that cutting resistance is minimal, and working bodies create multidirectional deformations due to several methods of soil monolith destruction.

Today, tillage implements with active working bodies are widely used for surface tillage. The most common rotary soil looseners. Therefore, when designing these tools and their working bodies should be borne in mind that they must primarily provide high quality tillage, the ability to change the mode of cutting the soil in a wide range.

The analysis of structural and technological schemes of rotary soil looseners and the process of their work showed that the greatest influence on the technological process of loosening have the following parameters: width, working speed, rotor shaft speed, number of working knives, pitch of knives its geometric characteristics. It is from these parameters primarily depends on the deformation of the soil and the reduction of cutting resistance.

If we compare tillage tools for surface tillage, the best quality of soil preparation for sowing cereals is provided by active working bodies, but they also have certain disadvantages: insufficient earning of stubble and crop residues in the soil, high energy consumption, complex design. Therefore, the study of structural parameters of the leavening agent and their dependence on the physical and mechanical properties of the soil is a topical issue today.

The aim of our research is to analyze and optimize the design and technological parameters of the rotary soil loosener and their impact on the degree of grinding of the soil during its surface cultivation for sowing of different crops. The study is based on the methods of mathematics and theoretical mechanics

The result of the research is the optimization of the parameters of the rotary ripper and their influence on the degree of soil grinding.