Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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CRITERIA DEPENDING ON DYNAMIC PARAMETERS IN THE CONDITIONS OF MECHANICAL BRAKING MINE HOISTING PLANTS

Dvinin L.A. 1 Dvinina L.B. 1 Lyptsev S.A. 1
1 Urals state mining University
Analyze the movement of mine hoisting plants in the conditions of mechanical braking on the basis of similarity theory. In accordance with theoretical studies have shown that the parameters defining the phenomenon, are fundamental dependence as dimensionless complexes, called criteria of similarity. Built dependence between the criteria of similarity allow to predict the results of the experiment, and conduct research on the basis of modeling of the studied phenomena. Based on the analysis of the equations of motion of mine hoisting plants are defined criteria of similarity for different dynamic regimes. Nomograms similarity allow you to determine not only the heating of the engine and its launcher overload when braking conditions, but also the relative performance of a hoist, as equivalent to the force »equivalent capacity , and efficiency, taking into account the loss of kinetic energy in mechanical braking all the way deceleration statically balanced rise in the conditions of trapezoidal speed graph.