A mobile soil track intended for search tests and laboratory investigations of embedding working organs of planting machines is suggested.
A model of optimization of anti-slipping device holder conicity, based on the criterion of maximal efficiency coefficient of wheeled aggregate chassis is presented. Optimal conicity values for concrete operational conditions of the МТЗ-80 + КПК-2-01 potato harvesting aggregate were obtained.
Construction of a new bench for cabbage harvesters investigation in laboratory conditions is described, results of its usage are estimated.
Mathematical and multivariable graphic models for the index «grain losses after separator» depending on straw rate, crop moisture content and separator characteristics are developed.
Results of development of a new trend in operational control methods based on prognostic information about the dynamics of controlled operational parameters of machine and tractor aggregate are presented.
Coatings formed by microarc oxidation and modified by copper oxide nano-powder, as well as microhardness and thickness of coatings have been investigated. Findings of the investigation and results of comparative wear resistance tests are given.
Results of experimental researches of straw choppers and spreaders are presented. Tests were carried out with the use of a newly developed sampler.
A way of complex variational problems solution by the collocation method is given for the case when Euler’s equation is reduced to differential equations with boundary conditions. The problem of extremal curves search was solved.
Effect of kinematic and geometric parameters of a snapping unit equipped with new plates and lags of chains on the quality indices of maize ears detaching have been studied.
Benefits and disadvantages of organizational and legal forms of higher school’s practice and experimental farms were analyzed. Alternatives of their optimization taking into account special directions of activities are suggested.
Uniformity of plant raw materials treatment during the forage conservation and mechanisms for liquid preservatives dosage were under study; findings of the investigation are presented.
A test specimen preparing the working fluid of mobile crop seed treater is substantiated and developed. It ensures the aggregate operation in continuous mode.
Constraints and consequences of using rape oil as a fuel for internal-combustion engines are briefly elucidated, as well as overcoming measures and temperature effect on viscosity and surface tension. Construction and operation of the heating device are described.
A way of bench trial run of heavy loaded bearing assemblies is proposed. Construction and exploitation technology of the bench allowing to simulate load and speed regimes analogous to actual operating conditions of bearing assemblies inside a machine or a mechanism are given.
A mathematical model of combine harvesters seasonal use is presented. The model employs the elements of operations research theory.
A method of tillage effectiveness increase is described. It is based on the use of pendulum oscillator mounted on machine frame and allows to reduce its tractive resistance by 14-23%.
Problems of trailing tractor transport development are considered. Measures ensuring the rise of ride comfort and passability are suggested.
Results of investigation of the dispersed fluid systems theory and its practical application during the cavitation treatment of hydrofuels are given. Outcomes of biofuel dispersion estimation have been compared from the classic point of view and from the point of view of the dispersed fluid systems theory exemplified as fitting of water droplets diameters distribution function on sizes of water and fuel emulsion.
Procedure and results of field tests of narrow-tires tractors МТЗ-1221 and John Deere 6920 are given. The obtained data on soil density allows to develop recommendations on tractors use in tilled crops cultivation.
Exhibits of the AgroFarm-2013 International Exhibition are analyzed, as well as developments of All-Russian Research Institute of Repair and Maintenance of Machine and Tractor Fleet in the field of safety production control, technical maintenance and equipment repair in animal farming.
Analysis of crops cultivation tractors fleet structure in the Northern Kazakhstan is presented.
A high-speed rotor and screw device for tuberous roots fractioning is suggested. It differs from the analogs by presence of fixed deflector of tuberous roots inside the drum.