Abstract
Flat cutters of all modifications, which allow loosening of the arable layer while preserving stubble on the field surface and retaining soil moisture, protecting the soil from wind and water erosion, turn out huge "blocks" when processing dry dense soils in the zone of Western Kazakhstan, form a compacted sole at the bottom of the furrow and work in conditions of blocked cutting of the soil. These disadvantages complicate further surface tillage, interfere with the development of the root system of plants and the intensive absorption of water into the lower layers, and increase the traction resistance of the implement. Working hypothesis: the preservation and restoration of soil fertility is possible on the basis of optimizing the parameters of technical support for its processing processes, taking into account zonal features. The aim of the study is to find a design of a loosening paw that ensures maximum accumulation and preservation of soil moisture in the arable horizon and increases the fertility of unproductive soils. Based on computer modeling of the interaction of a plane-cutting paw with the soil, the design of a ripping paw with vertical knives has been developed taking into account the structure of the soil and a mathematical model for determining its traction resistance has been compiled. The effects of individual design parameters, physical and mechanical properties of the soil on the traction resistance of the ripper knives are revealed. To verify the theoretical results, a six-factor experiment was conducted and the results show the correctness of the hypotheses adopted when compiling a mathematical model of traction resistance based on computer modeling of the interaction of the working body with the soil and the reliability of the data obtained.
01 Introduction
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02 References
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