The paper presents a comparative analysis of soil crushing after ploughing with ploughbodies with a classical plowing surface and those with lamellar surface.
Journal section: MECHANIZATION IN AGRICULTURE
TECHNOLOGICAL AND TECHNICAL SOLUTIONS TO THE PROBLEM OF SOIL COMPACTION AND DEPLETION IN THE SYSTEM OF PRECISION FARMING IN THE CONDITIONS OF NORTHERN KAZAKHSTANpg(s) 95-99
In this work have considered the problems of soil compaction and the main nutrition of plant in the system of precision farming in the conditions of the main grain-sowing regions of Northern Kazakhstan. The specific examples show the condition of the soil, the level of their supply with nitrogen and phosphorus. Technological and technical solutions are proposed for the differentiated use of basic doses of mineral fertilizers and soil decompression
There is a method examined for studying propagation of waves in a double-periodic plate, based on the application of the boundary element method. By means of this method “transparency windows” were found for a wave that propagates in a direction perpendicular to the diagonal of the elementary period of the system
There are growing appeals for the tilting chamber (TC) technology equipped with the “PTC-S” device, which is a profound improvement of the technology of mechanized harvesting of cereals, fodder and oilseeds; and other existing technologies in the field of transportation of beveled crop into the threshing and shredding chamber, etc. That is why TC equipped with “PTC-S” refers to the new generation of working tools for transporting the crop from the harvester or pick-up to the threshing and separating device of the harvesting machine. The development has significant advantages, among which the main ones are: a significant increase in energy efficiency, reduction of quantitative and qualitative grain losses during harvesting, etc.
In the paper is described a new computerized test bench for strength testing of roll over protective structures (ROPS) in tractor cabs. The static test procedure complies with international labor safety standards accepted in the Republic of Belarus.
The use of modern methods of conservative farming requires an ever more in-depth study of the design of agricultural machinery, ensuring the high-quality execution of technological operations. The development of seeders for No-till, Mini-till and Strip-till technologies assumes theoretical and experimental studies of the working bodies of the designed seeder. At the same time it is necessary to prepare the feasibility study of its use, which in the conditions of market economy and various forms of land management is very important. This article is devoted to the substantiation of the tractive resistance of the seed drill’s seeding section.
MACHINE RELIABILITY RESEARCH OF LOW MECHANIZATION IN THE MOUNTAIN CONDITIONS OF ADJARA WITH THE AIM OF ITS INCREASINGpg(s) 80-84
The article explored the operational reliability of agricultural machinery of low mechanization operating in the mountain conditions of Ajara, carried out the classification of machine parts on the basis of their structural and technological homogeneity and specific working conditions, highlighted the least reliable components and parts, developed a theoretical basis for calculating the reliability in contrast to mobile machines , the corresponding structural and logical schemes were drawn up.
As a result of statistical studies, integral and differential distribution functions of reliability indicators have been obtained, their general characteristics have been determined and the values of single and complex reliability indicators have been determined, resource-saving technology has been developed to increase the reliability and resource of mini-technology. technology for the region of Adjara, as well as its parameters and rational about service-organization of the pilot plant.
DEVELOPMENT OF INNOVATIONAL TECHNOLOGIES OF AGRICULTURAL MACHINES PROJECTING AND THEIR INFLUENCE ON THE FORMATION OF PROFESSIONAL COMPETENCIES OF AGRICULTURAL ENGINEERpg(s) 66-69
The development of innovative technologies of designing agricultural machines and their influence on the formation of professional competencies of agroengineer is presented. The course designing topics and stages of work implementation are highlighted, which states that during designing a review and analysis of existing structures of this type is performed, the mechanical and technological properties of agricultural materials with which the machine will work (soil, seeds, fertilizers, root crops, etc.) are determined, the agrotechnical requirements and technical requirements for the car are formed, the technological scheme of the design is substantiated and the principle of its work is described, the basic technological, kinematic, hydro or pneumatic mechanical parameters, the forces acting on the working bodies, traction resistance and power consumption are determined, calculations are made for the strength of the changed structural elements, the technical passport of the machine is drawn up, the technical and economic indicators are determined, the technological scheme is drawn up, the description is made and the formula of the invention is compiled according to the requirements of the patent documents. It is noted that the successful completion of the course work on agricultural machines involves interdisciplinary connections with other disciplines, for example, such as the mechanical and technological properties of agricultural materials, the basis of engineering methods for calculation of strength and rigidity, machine parts and design principles, agriculture, the basis intellectual property, the basis of scientific research, etc. An example of an approximate algorithm for calculating and designing an agricultural machine on the example of a grain seed drill is given. The factors emphasizing the quality of preparation of agroengineering specialists, development of capabilities for performing design functions are highlighted.
In the practice of repairing the machines in agriculture, the following strategies are mainly applied: forced repairs; conducting repairs in plan order and a combined strategy with elements of both strategies.
An investigation was carried out and analytical dependencies were obtained to determine the function of the recovery (characteristic of the failure flow) of the machine components in the forced repairs (after failure), to carry out repairs in a planned order and a combined strategy with elements of the first two strategies to calculate the required pool of spare parts to maintain machine performance.
Content of this thesis is to introduce information system and its use to support decision making in the selected farm. In this thesis we looked at using information system AgroCont the company ISAT, Ltd. the holding OVD – orchards association Dvory nad Žitavou. Agricultural enterprises have to keep the required documentation on the activities on land and know it thoroughly in accordance with European Union legislation introduced in regulations of Slovak republic. Using individual modules of the system we created in-house analysis outputs. The subsequent evaluation of the information we have proposed possible solutions and changes that may be helpful for better decision making, more efficient use of labor and machinery, but also for cost savings in normal operation. In conclusion, we evaluated output, which are designed to analyze the machinery and we have proposed measures and possible changes.
ECONOMIC SCHEDULING MODEL FOR MECHANICAL-MANUAL MANUFACTURING OF SEASONAL PRODUCT UNDER UNCERTAIN SUPPLY TIME AND QUANTITY OF THE RAW MATERIALSpg(s) 55-58
The research proposes a newsvendor-like model that enables determining the optimal timing for renting machinery with its operators before the arrival of the raw material, and derives an optimal manufacturing strategy. The research includes a case study with a comprehensive analysis for a blueberry harvester that demonstrates the applicability of the proposed model. The rigorous theoretical analysis of the optimal harvesting strategy is validated by numerical experiments. The presented results may help researchers and agriculture practitioners in planning mechanical-manual integrated manufacturing.
Promising technical solutions for the creation of technological equipment and agricultural machinery equipped with radiation sources and providing for the impact of the magnetic field on the seed (grain) material directly in the field are proposed.