RATIONALE OF THE OPTIMAL SHAPE AND PLACEMENT ANGLE VARIATION PATTERN OF THE TILLAGE ROTARY BLADE
ՀՈՂԱՄՇԱԿ ՖՐԵԶԻ ԴԱՆԱԿԻ ՕՊՏԻՄԱԼ ՁԵՒԻ ԵՒ ՏԵՂԱԿԱՅՄԱՆ ԱՆԿՅԱՆ ՓՈՓՈԽՄԱՆ ՕՐԻՆԱՉԱՓՈՒԹՅԱՆ ՀԻՄՆԱՎՈՐՈՒՄ
DOI : https://doi.org/10.35633/inmateh-74-88
Authors
Abstract
The article addresses the issue of reducing the energy consumption and minimizing the ejection of loosened soil mass from the cultivated zone in gardening tillage rotary machines with a vertical rotation axis. Generally, rotary tilling machines with a horizontal rotation plane are characterized by high energy consumption. Additionally, during the rotary tilling process, there is an undesirable phenomenon of soil mass ejection caused by the blade, resulting in exposed areas and furrows in the already cultivated zone. This results in a disruption of the technological quality of soil cultivation. Considering that both the resistance moment of the rotor and the intensity of soil mass ejection are significantly influenced by several structural-technological and soil physico-mechanical factors, the comprehensive and simultaneous identification of these influences remains a relevant challenge. The solution to the problem is based on the theory of adjusting the angular positioning of rotary tiller blades and the results obtained. The theoretical solution to the issue of soil mass ejection from the cultivated area relies on the model of oblique impact between two bodies under viscous friction conditions. As a result, expressions were derived that allow determining an optimal angular positioning pattern for the tiller blades and an optimal shape of the blade body. These ensure that the technological process is carried out with minimal energy consumption and the least possible soil mass ejection.
Abstract in Armenian