Gulyayev K. Grounding of Kinematic and Force Parameters of Shield Powered Supports of Supporting and Protecting Type for Stopes

Working process of interaction of chock-shield powered supports with adjoining rocks. Increase of the technological level of shield powered supports for stopes of mines of the Ukraine due to substantiation of their kinematic and force parameters on the basis of the established laws of working process of interaction of the supports with adjoining rocks. The methods of analytical geometry, theory of technical systems and synthesis of mechanisms, theoretical mechanics were used. The dominant influence of the type and parameters of the trajectory of movement of the axis of the hinge connecting caving shield to canopy on efficiency of interaction of the support with adjoining rocks and formation of in-section loadings is established. The rational trajectory of movement of the hinge is determined. The mathematical model describing formation of loadings in the system "shield powered support - adjoining rocks" in view of the type and parameters of the trajectory of movement of the axis of the hinge, structural layout of the section, forces of friction on its external contour is developed. The method of synthesis of quadric-crank mechanisms forming the rational trajectory of movement of the axis of the hinge within the limits of working ranges of support extension is developed. The results of research are used by the Institute Dongiprouglemash at working out of the new two-legged and four-legged chock-shield powered supports; at DonSTU at the performance of research efforts and in training process. Sphere (area) of application - design institutes and factories of mining machinery manufacturing of the Ukraine, in training process.