Effect of surface hardening with plasma arc using the УДГЗ-200 device on properties of different steels was under study. Results of the investigation are given. Prospects of the new technique application are examined.
Construction of a shrubbery topper intended for the regenerative pruning is examined. Its specification and information about laboratory and field tests are given.
Procedure of simulation testings of a felling-skidding-processing machine in the actual natural conditions is presented and this process is stated.
Mathematical modeling of leakages in drainage cavity depending on the degree of depreciation of pumping unit is presented.
Tractors manufactured by Polish companies Pronar and Ursus SA, their constructive features and key indicators of technical level are examined.
Construction and principle of operation of benches for laboratory explorations of cabbage harvesters as well as results of their examination are presented.
Results of comparative testings of an experimental block-module cultivator and its analogues КПС-4 and Sunflower-5 are given.
An improved cultivator’s working organ for weeds elimination is described.
Calculation method of resistance and moment of resistance to soil cutting in dependence on rotation angle of working organ is developed. This method can be transferred mainly to other rotation working organs.
A block diagram of professional and production risks of diseases and injuries from hazardous and dangerous factors of production on-site is presented. Modern methods and means of protection from principal risks sources are described.
Issues of imported tractors for rural areas deliveries for Russian market over 2011 year are considered.
Results of fatigue tests of steel 45 samples in the air and in corrosive mediums simulating the atmospheric exposure on shafts and their joints are examined. Functions of corrosion coefficients are suggested and nomograms for the application of these coefficients’ probabilistic values in improved calculations of corrosive fatigue resistance of constructive elements are drawn.
A new method of hydromechanical transmission friction clutches diagnostics is suggested. Results of theoretical research were confirmed experimentally. Algorithm of technical state estimation of hydromechanical transmission friction clutches in bench tests conditions is given.
A method of sectionally-continuous tractor speed variation is examined, based on the rational choice of sufficiently short diapason of diesel compensative parameter. In these conditions power doesn’t decrease below nominal one and fuel economy improves by decrease of diesel rotation rate.
Load-carrying capacity of an adaptive friction clutch of 2nd generation with separate force-closure is estimated. Relationship between the force of friction clusters closure and the accuracy of operation is revealed.
Parameters calculation technique of tractor operating in overload mode with diesel air charge enrichment with various hydrocarbonaceous activators (mineral diesel fuel, А-76, АИ-92 and АИ-95 petrols, ТС-1 kerosene, mixed rape-mineral and safflower-mineral fuels) is produced.
Results of investigations in the field of propulsion engineering are given, aiming the obtainment of improved multispan units performance, their operating life, reliability factor, accuracy.
Components of calculation of a two-rolling grain mill as more effective replacement assembly for mobile compound feeds aggregates instead of grain crushers are examined.
Structure, operating principle and results of parameter optimization of a combined system for the reduction of diesels exhaust gases’ toxicity are described.