The results of experimental studies the power load of the diesel unit

Summary. The article presents the results of experimental studies of the working bodies of chisel tools with improved geometric characteristics. The results of experimental studies have shown that the use of working bodies with improved geometric characteristics of the working surface can reduce the total traction resistance of the tractor by 6-9%. It is noted that the effectiveness of the use of experimental working bodies decreases with an increase in the speed of movement of the unit.

Introduction. Among the effective agrotechnical methods of soil destruction, from the point of view of environmental factors (the development of wind and water erosion), it is possible to distinguish non-dumping loosening with chisel plows. This agrotechnical technique is used, as a rule, on "heavy" soils: the value of the resistivity coefficient is 6.5 – 11 kg / cm2; the humus content is less than 2%; the reduced value of soil moisture at the time of chisel treatment (up to 12%). Of the main disadvantages of chisel processing, it should be highlighted: the significant energy intensity of the process; the complexity of using chisel tools on clogged soils and soils with low humidity due to the occurrence of the process of block formation and "porosity" of the arable layer; the appearance of the effect of cutting the soil background without crumbling it (on soils with high humidity). The desire of scientists to reduce the total cost of continuous tillage forces them to pay attention to the physical processes of interaction of the tillage tool with the soil, the study of which makes it possible to improve the geometry of the working bodies of existing tools according to energy efficiency criteria. Therefore, a comprehensive study of the energy intensity of the chiseling process by working bodies of various geometric shapes is an urgent task.

Object. The object of the study is the energy parameters of the chisel tillage process with the OCHO-5 plow, equipped with working bodies with improved geometric characteristics of the working surface.

Materials and methods. Theoretical research methods were based on the analysis and modeling of the physical features of the destruction and movement of the soil layer on the surface of the working organ. Experimental studies were carried out on real objects of tillage implements equipped with working bodies with different geometric characteristics of the working surface, using standard techniques.

Results and conclusions. An analysis of the results of field studies of the energy intensity of the technological process of chiseling soil showed that the use of working bodies with improved geometric characteristics of the working surface reduces the overall traction resistance of the chisel plow: by 11% when working at speeds up to 4 km/h and by 8% when working at speeds of 4-7 km/h.

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