ЕКСПЕРИМЕНТАЛЬНІ ДОСЛІДЖЕННЯ НАПРУЖЕНО ДЕФОРМОВАНОГО СТАНУ ПІДШКІВНИХ КОНСТРУКЦІЙ ШАХТНИХ РАМНИХ УКІСНИХ КОПРІВ
The paper is about the theoretical and experimental survey of the mode of deformation of the guide pulley resting joint of the shaft frametype sloping headgears. As a result of the mathematical modeling and statistical analysis of the experimental data we have ascertained the mechanism of local stress distribution; the characteristics of the dynamic stresses for testing the subpulley structure fatigue stress. We have compared the results of the mathematical modeling and physical experiments and have estimated the resource of the subpulley resting joints by fatigue stress. By and large the obtained data provide a basis for the improvement of the engineering procedures of designing steel structures of shaft sloping headgears.