Mechanization in agriculture & Conserving of the resources
Vol. 65 (2019), Issue 4, pg(s) 120-125

MECHANIZATION IN AGRICULTURE

Soil and water resources as important objects and prerequisites for the design of agricultural machines and the formation of professional competencies of an agricultural engineer

  • 1 Ukraine, Vinnytsia National Agricultural University

Abstract

The scientific, technical and pedagogical bases of studying issues of soil and water protection by future specialists in agro-engineering in of higher education institutions are presented. Some concepts and categories that are used in the educational process for students to study agricultural land reclamation machinery and equipment are analyzed. Depending on the purpose, tasks, techniques of technological processes, the types of land reclamation measures are distinguished. The example of calculation of working bodies of earthmoving reclamation machines is given. According to the developed innovative studying technologies, students first study and analyze the state of agricultural production, identify the disadvantages of technological processes, the level of technical support, and then, using mathematical apparatus, methods of engineering calculations design and construct a reclamation machine. The methodological features of calculating the power balance of the earth-moving reclamation machine, which includes the power required to: isolate the material to be processed, taking into account its deformation, are theoretically described; the movement of the material being treated, that is, providing it with kinetic energy; lifting of the processed material; overcoming the friction resistance of the treated material against the surface of the working body and guide surfaces; overcoming the full resistance of the movement of the machine, taking into account the slope of the surface of the movement to the horizon; overcoming the propulsion of the propulsion; acceleration of the machine to the calculated speed of movement (overcoming the forces of inertia); drive conveyors and accessories. The developed procedure of laboratory and practical work includes the study of the methods and features of the calculation of balance capacity components of reclamation machines, taking into account such indicators as the type of soil, its density, thickness of layer, productivity, kinematics of the working body, the required lifting height, etc. The lecturer must draw up a general report on the theoretical and practical part of the laboratory and practical work in accordance with his task and protect it from the faculty of the department. The developed pedagogical technology of cross training emphasizes that soil and water resources are important objects and prerequisites for the development of agricultural machines and the formation of design competencies of agricultural engineers.

Keywords

References

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