FOUNDATION OF MECHANIZED TIMBERING SECTION Russian patent published in 1994 - IPC

FIELD: mining. SUBSTANCE: foundation of mechanized timbering section has longitudinal beams, tied by a traverse. A guide is placed between the beams. The guide is connected with conveyor section. U-shaped in plan turning lever is hinged to the longitudinal beams lower side. A stopper, capable to be engaged with the guide is rigidly fixed on the turning lever tamping side. A hydrocylinder is set between the cantilever and upper side of the turning lever. To lift the foundation they switch on the hydrocylinder to expand. During the process the turning lever is turning counter clockwise and the stopper engages with the guide, providing for extraction of the foundation. Then transfer of the timbering section foundation is exercised. If during the transfer there is a sign of conveyor sections possible overturning, then they periodically make the hydrocylinder thrust, ensuring the stopper pressing the guide, that prevents its overturning. EFFECT: foundation is effective in weak loose grounds mining. 3 dwg