No 3 (2012)

New design approaches of machines working bodies for mineral fertilizers subsurface application are discussed with the account of crops biology-parameters root system according to their distribution depth.

The main regime and design parameters of drum potatoes sorting are revealed for small farms.

The article is devoted to the decision problems of fitomeliorant sow hard-running seed-grasses sowing and lawn grasses for areas, having difficult surface and outlines.

In article the results of bench tests of diesel engine SMD-62 fuel equipment are presented. Researches of fuel temperature influence in nozzle for injection maximum pressure and cyclic giving are carried out.

It presents data of chromatographic analysis of oils obtained from oilseed radish and mixed radish-mineral fuels, as well as the results of diesel engine D-243 motor studies with mixed fuel, consisting of the trade mineral diesel fuel and radish oil in percentage the ratio of 25:75, 50:50,75:25, 90:10 and mixture of 90:10 treated with ultrasound.

The results of chromatographic analysis of camelina oil and diesel-based mixed fuel camelina oil and mineral fuel as a percentage of 25:75, 50:50, 75:25 and 90:10 are shown. The elemental composition and combustion lower heat of camelina oil and mixed diesel fuel are determined.

In article the results of theoretical substantiation of lethal traumatism long-term forecasting models and ways of its preventive maintenance (on example of agriculture) are resulted. It is proved that within last thirteen years the specified kind of traumas submits to distribution with the parametres. Results of theoretical researches of problem are confirmed by practice that allows to use them as base for development of effective control system by labour safety and increase of manufacture profitability.

At the device of various protections and barriers the ropes are used. Their calculation is made as flexible threads. The size of threads deflection for rope length with any loading is analytically defined. At influence of difficult kinds of loading analytical calculation essentially becomes complicated. The algorithm of calculation and its computer model realized in mathematical package MathCAD is offered. The example of calculation of flexible thread rope balance position is presented.

The technique of complex indicator definition forage quality which allows to state full assessment of received product quality is given, and the analysis of experimental data is provided.

In article deals with the foundation of the power and power-hungryness for material mixing and dosage depending on the structural-regime parameters of mixer-device.

In the work the relevance of concentrated fodders feeders application with devices alignment of feed flow for the preparation of dry combined feed mixes is justified . The studies results of spiral-bladed rotation frequency impact of the working body, quantity of blades and the distance between fodder grid feeder rods for the size and uniformity of the outflowing stream, material supply, the dosing energy intensity are presented. It is substantiated the frequency of rotation of 190-200 min-1, number of blades thrower - 6 PCs., the distance between the rods of the grid - 25 mm.

New software, algorithms and program «CAD HAC» to simulate the construction of the automated complex with the variant of parametric calculations of transport and storage equipment on the basis of the developed techniques of its visualization are proposed.

In article deals analysis with the lift-transport machines use safety and way of accident rate and traumatism warning in building by organizing-technique and engineer-technique measures.