Due to the disconnectedness of production processes, prevention of soil degradation and plant diseases, as well as the difficult establishment of functional dependencies between the parameters of the working bodies and the physicomechanical properties of the soil, the richness of foreign technology, there is the problem of creating innovative structural and technological solutions for basic soil tillage including for the purpose of import substitution. To solve it, KubGAU has developed: “Multifunctional plow” (patent of the Russian Federation No. 2618342); “Plow with rotary bar” (utility model RF patent No. 184196); “Multifunctional plow with a rotary bruce” (positive decision on the patent application of the Russian Federation). Formal models, schemes and descriptions are given
The article considers the problem of insufficient charging voltage during the joint operation of the battery and alternator. A comparative analysis of the proposed ways of increasing the charging voltage of the generator
We have made calculations using the values of dung delivered after the analysis of laboratory research of the soil and irrigation water delivered with organic fertilizers. Based on the data on values of hydraulic resistance coefficients of mixer elements, mixing chamber and diffuser, we found diameters of pressure pipelines, reduced head of NGPR mixer, velocity of flow discharge from mixing nozzles and the mixing chamber. According to the design data of the pump head values, those of the mixer head, the head on inlet into the mixer and head in a reservoir of constant pressure a possibility was received to specify values of factors under studies on location of irrigation system and to test the design data with the help of the experimental value received. A low head system with hydraulic and geometric parameters of mixing is recommended for small farms
Sulphitation of semiproducts of sugar production has a
significant influence on the course of processes in the
refining of both sugar beet and cane sugar. The
insufficient degree of adsorption of sulfurous
anhydride has a negative impact on the environment as
well as on the technical staff, if it gets into production
premises, caused not so much by contingencies, but by
shortcomings in the equipment used. In the article, we
describe the main types of constructions of sulphitation
devices used in the sugar industry, their drafts are
shown, their advantages and disadvantages are
considered
The objective of the research was to study the patterns of deformation with the different internal structure in a tire envelope with the standard size of 30.5-32 in propulsion units for modern mobile farm vehicles. The research method is experimental with the use of «a tire tester» and specially developed devices for determining the deformations of the tire envelope concerning the rim in circular and radial directions. Output indicators of a wheel with the pneumatic tire are determined by the ability of the tire to be deformed so that at small hysteresis losses in the rubber-cord envelope the largest area of the contact with a substructure have been created. This circumstance has special significance when developing the tires for mobile farm vehicles with the high power saturation, the patterns of deformation of which are poorly studied now. The analysis of the carried out experimental researches has shown the expediency of application of the experimental tires with the same standard size, offered in the work, on the propulsion units of the mobile farm vehicles instead of diagonal and radial tires. The rolling resistance of the experimental tires 30.5E-32 is lower than the rolling resistance of serially produced tires, and the developed area of contact is higher and that provides the decrease in the condensing impact on the soil
The considerable share in prime cost of products of agricultural production is made, now, by power expenses. It promotes that the considerable attention is given power - both resource-saving to the equipment and technologies. Thus, the modern science is faced by a global task – creation of cars and tools of new generation, high-economic, highly productive, less power-intensive and metal-consuming. One of the most power-intensive processes of production of agricultural production is processing of the soil. In this article on the basis of numerous researches use of rotary motion of the soil-cultivating working body allowing to improve a design of tillage machines, to reduce metal consumption, power consumption, to increase quality of work is offered. In this article, we offer the device for preseeding processing of the soil on a frame of which the working bodies in the form of flat disks with sharpening working in the horizontal plane, but with the accounting of an angle of deepening of working body are in chessboard order established. Rotary motion which promotes fuller cutting of rhizomes of weed plants and to improvement of quality of preseeding processing of the soil is forcibly transferred to working bodies. Justification of the offered device, constructive and technological schemes of the tool, conclusions and offers are given in the article
The article dwells on the features of the transition process in the transformer windings under non-zero conditions typical for the modes of drying the trans-former with low frequency currents. The article also shows the effect of non-zero conditions on the cur-rents in the windings and the heating of the windings
New ways of solving reducing soil compaction problem are substantiated. Soil compaction destroys its structure, violates its water-air regime, and leads to erosion and reduced yield. The effectiveness of the presented directions, based on the analysis of the issue and the results of own research is confirmed by practical use in the crop production processes mechanization of intellectual engineering authors' developments, based on their inventions and well-known serial technology selected from Automated reference system "agricultural machinery". It was the synthesis of own research results and modern agricultural machinery best samples analysis that allowed us to form an effective system of machines that reduce the harmful soil compaction. This ensures soil fertility preservation and crop yield increase. The set of machines proposed in the system for soil processing, sowing, fertilizing, spraying and harvesting not only reduces soil compaction but also improves work quality, labor productivity and complexity of the work performed, harvest and reduces costs of all types (energy, money, labor). The basis of the problem solution consists of a combination of technological operations for one pass of the unit across the field, multifunctional units application in the system that performs tillage and seeding, fertilization and tillage, additional fertilizing of spike crops with simultaneous harrowing, harvesting with simultaneous stubbling or straw pressing etc., refusal to use heavy machinery in the fields, trucks, conversion tracked system on tractors, front and rear hydraulics for making multi-functional units, the use of fundamentally new machines and adaptations to them according to the inventions of the authors
The article considers manufacturing techniques and assembling screw propellers of transport vehicles for rice and fish farms. The increase in technological capabilities, reliability and carrying capacity of transport vehicles is achieved by making the propeller screw, with the possibility of its rotation. We called such propellers screw propellers, since along their perimeter along the entire length, multiple-curved curved surfaces are formed in the form of helical grooves of various configurations, sizes and shapes. The spatial form of the screw propellers is made with screw surfaces in the form of helical grooves, which ensures that the transport machines for rice and fish farms are conveyed on land, on water, through swampy and difficult terrain at a sufficiently high speed. As a result of the work performed, not only the designs of screw propellers and their classification were proposed, in which there is a general principle that allows the development of still unknown structures of propellers, but also their manufacturing techniques. The design of screw propellers was performed using the KOMPAS-3D software package using descriptive geometry and engineering graphics
The article reveals the main empirical factors that
increase the efficiency of technological systems of
grain harvesting. The work shows interrelation and
subordination of empirical factors in the practice of
operational reliability of grain harvesters, which
underlies scientific research. We have defined the basic
(key empirical factors) that allowed to develop a
conceptual model (paradigm) research. The article
reveals a technique, establishing the rules of
application of the method of expert assessments to
identify organizational and technical factors that have
the most significant impact on improving the reliability
of grain harvesters