The article presents the developed dynamic design diagram, mathematical model and software for the simulation modeling of braking of tractor train composed of a wheel tractor and a semitrailer.
The relationship of design, production, use and reliability control of tractors and motor vehicles is reviewed.
Main principles of creation of a computer separator for the grain cleaning, its components, application field and characteristics of grain for separation are described.
The need for caterpillar tractors in russian agro-industrial complex is 675,9 thousand units. However, the tendency to reduce their number in the fleet remains the same, in spite of the fact that they often have no alternative in field, especially when soil condition doesn't allow to use wheeled machines.
Description and specifications of foreign tractors equipped with selective catalytic reduction (SCR) of exhaust gases are presented.
The paper presents the research of dependence of micro- and macrogeometry of work surface on the geometrical perfection parameters with the help of mathematical model of broaching process.
The design of an electromechanical instrument for soil hardness measuring is given. The advantage of new device consists in the automation of measurement processes and the information supply of resource-saving technologies.
Results of research of diesel engine 4F 11,0/12,5 effective indices by work on the methanol fuel emulsion are presented.
Features of combine harvesters' work in conditions of large commodity grain production (up to 45-50 thousand tons for a season) are stated. It is drawn a conclusion that if there are well adjusted engineering, technical repair and dispatching services in a farm, irrespective of a year of combines' release, it is possible for each of them to provide the average daily output of grain up to 120 tons, at the average fuel consumption 2,16-2,49 kg/tons. Combines «Don-1500» of the first years of release supposed more losses of grain than modern ones. Domestic combines «Don-1500M» and its advanced model «Acros-530» have greater potential opportunities, and at their correct service they are quite competitive with foreign ones of a similar class.
Prolonged exposure (several hours) of studied batteries after their charge and discharge at the control stand (for the removal of residual polarization) allowed to apply the Gauss's law to identify the parameters of experiment.
By the example of Udmurt Republic, the article reveales the problems associated with continuous improvement of technological processes and technical equipment in agricultural industry. It gives some recommendations how to solve these problems.
The technological process of developed rotary pneumatic screen separator is described. The results of theoretical and experimental studies which allowed to determine its constructional and kinematic parameters, as well as qualitative indicators of its work, are given.
The design and principle of operation of a new small-sized cabbage combine harvester are described. Its advantages and results of use tests are presented.
The estimation of potentiality of an invention, which adequately reflects its content and corresponds to the specific nature of inventive act, is suggested.