Results of determination of minimal mass of a mechanical tester of an automatic driver system of self-powered beet and potato combines are presented.
Results of experimental researches of operating conditions alterations of combustion engine crankshaft bearings are given. They can be exploited for engine lubricating system perfection and for development of engine diagnosis system.
Results of investigation of the problem of practice and experimental farms as well as changes of economic activity and normative and legal basis are given. Basic trends of practice and experimental farms system perfection are suggested.
Results of experimental determination of rolling angles and coefficients of rolling friction for potato tubers, carrot edible roots and soil balls along the elevator surface are presented.
Results of theoretical researches concerning the assessment of bearing and coupling passability of light power units are given. Diapason of load range and air pressure in extra-low pressure tires is revealed, which secures the passability on grounds of low bearing value.
An apparatus is suggested equipped with a reticulated half-cylinder which oscillates reciprocally in transversal plane and ensures more frequent contacts between internal rotating cylinder brush and tuberous roots.
Results of quality assessment of cereals seeds distribution with a two-band ploughshare are given as well as the relationships of seed distribution uniformity and the convergence curves of theoretical and experimental researches.
Results of comparative corrosion fatigue tests are examined. The steel shafts of transmission gears under single and combined action of some factors (loading conditions, stress concentration, pH of the environment, polymer coating) were under study. Equations and nomograms of relative strength and durability coefficients for the probabilistic assessment of bearing capacity of mentioned parts in the field of high-cycle fatigue are given.
Basic trends of rising the technological level of agro-industrial complex enterprises and increasing the agricultural machinery exploitation efficiency on the base of its concentration and specialization of enterprises are examined.
Issues of efficiency promotion of production and technological activity organization and exploitation of machine and tractor fleet of rural commodity producers and machine-technological stations are considered, taking into account the decrease of agro-industrial complex technical equipment level and the disparity of agricultural and industrial production prices.
Features of operating conditions of crawler timber overloaders were considered with the view of substantiation of calculated diagram and determination of calculated loads acting on the technological equipment and springing media of a tractor case.
Findings of investigations are presented, allowing to predict the pressure characteristics of developed grain crushers with rotors and fans under certain characteristics of the analog.
Means of increasing the methane yield from biogas machinery, namely substrate preparation, enzymes application etc. are given.
Results of comparative estimation of suggested grain crops integrated harvest technology with the use of multifunctional aggregates are given. Power expenditures, labour costs, specific quantity of metal and fuel consumption were used as efficiency indicators.
The gearing diagram of an attached gear box with preselectoric shift of three gears under load is suggested.
Main characteristics of oscillating drying in mobile grain dryers with vertical screw are determined. Economic inspection of fodder grain drying was carried out and ~15% reduction of specific heat expenditures was revealed.
Problems of rotor parameters optimization by single and two-step B-shaped blades arrangement were considered. Formulas for soil cultivation depth determination having regard to the action of vertical and horizontal forces were obtained.
Methods and means of diagnostics of axial-piston hydraulic machines are briefly analyzed. Assumptions of decreasing the driving power of failure-detecting stands are stated.
A method of timber machines’ hydraulic drives diagnostics by the parameters of hydro-percussion actions is presented.
An integrated perfection method of ecological and fuel-economic indicators of tractor diesel on the basis of two-component biodiesel fuel and chemical activation means application was suggested.
Materials concerning the development of promising design of S-shaped spring cultivator suspension and the determination of its geometric parameters are presented.