The problems of quality control of tractor units' repair are considered. Experimental models of control and regulation equipment developed in 2009-2011 for the modernization of repair and service base of agroindustrial complex are presented.
Basic design parameters are grounded. Results of comparative tests of an experimental tiller-seeder are given.
Results of investigation of a mobile wood drum-type chipper driven by a power take-off shaft of agricultural tractor, operating in a timber terminal are given. It is shown that improving the efficiency of wood chips production from large-sized firewood requires more powerful chippers with 200 kW engines.
Modeling of coated seeds seeding on bench equipment with a pneumatic device and a piezocrystal sensor of seed number allowed to obtain the distribution of electronic pulses from the seeds of sugar beet, corn and imitators in a row. It is established that the management of seeds distribution may be accomplished by regulating the rotation frequency of drilling disk with a smaller number of seeding holes.
Loading of control device's links as a function of the fluctuation amplitude in leading parts of mechanical rectifiers depending on the gear ratio of transformer is analyzed.
A promising trend of grain crops harvesting by stripping of standing plants in combination with the use of a thresher that provides an alternating effect on the links between grain and ear is considered.
Dependences of pressure in exhaust pipe on the rotation angle and rotation frequency of crankshaft and the height of valve lift are determined.
Application of independent torsional suspension on agricultural tractors of drawbar class 5(6) with a triangular tracked bypass is grounded.
Mechanization of plowing in farms by using a small-sized tractor is proposed. Plowing units with different types of plow bodies are analyzed. A suggestion to adjust the plow width is considered.
The problem of commercialization of heavy caterpillar class 6-8 tractor having a capacity of 270-320 hp is considered. Results of its technical and economic substantiation based on extensive comparative tests are carried out. Advices on the improvement of heavy machines' leasing are given.
Possibility of joint cooperation between agro-engineering and the «Skolkovo» innovation centre with the view of implementation of the «Regulation on food security of the Russian Federation» requirements is considered. A process of research and development and the adoption of new technologies in agricultural production, aimed at complete realization of the Declaration of 01.02.2010 are proposed.
Results of study of internal cylinder gas pressure change in internal combustion engines are given. An improved method for the measuring of diesel engines' compression is presented.
Problems of completing of machine-tractor unit are considered. Its optimal operation mode in specific working conditions is determined with the use of a portable measurement system.
Problems of environmental safety of agricultural equipment are considered. Main factors of harmful effect of machines on nature and human are given, as well as basic parameters of environmental safety estimation.
A linear dependence of wear on the lifelength is determined. Resistance to abrasive wear of restored shares hardened by wear-resistant surfacing is commensurable to the resistance of proprietary shares, though its dynamics is different for factory and restored parts.
A patented construction of plunger and barrel assembly is proposed. A ball valve is placed in its axial bore to eliminate the fuel flowing into low pressure cavity during the injection process. The design of plunger and barrel assembly and its operation concept are considered.
Influence of different working parts of grain combines on the direct losses and crushing of grain is analyzed. Dependences of grain losses and crushing on the transfer factors characterizing the design and adjustment parameters of working parts are determined.
To reduce energy and labor inputs during the manufacture of hydraulic cylinders it is proposed to use a constructional metal-silica composite. Results of reliability and durability tests of the new material carried out on a specially constructed test bench are given.
The process of continuous flow and stationary (three phase) technology and its comparative agrotechnical parameters, such as performance, grain losses and number of weeds, are considered under the influence of various factors.
Possibility to control the speed of grain cleaner bucket elevator as well as other transporters' speed under technological overload and failures is shown.
A method for determining the rate of airflow allowing to move hay in the air duct of pneumatic-mechanical hay pickup loader is presented.