SECTION OF HYDRAULIC POWERED SUPPORT Russian patent published in 2004 - IPC

FIELD: mining industry, mechanization of robbing in coalmines, lining of breakage faces. SUBSTANCE: technical objective of invention consists in improved adaptability of support used on soft ground, in simplified design of mechanism lifting base, in its enhanced reliability and prolonged service life due to enlarged area of contact between pad and tie-rod and in prevention of action of lateral forces on rod of hydraulic jack lifting base. Section of hydraulic powered support has base made of two parallel skis with side guides linked by portal, resting with lower planes against ground, columns supporting capping installed between skis on portal of moving hydraulic jack acting from side of rock burst on tie-rod placed under moving hydraulic jack and linked on side of face to conveyer, mechanism hoisting skis with hydraulic jack mounted on tie-rod in vertical position. Hydraulic jack includes cylinder and rod with flat contact surface that can be moved in guides by height. Column has reciprocal surface on line of contact with side guides of base skis. Rod of hydraulic jack carries spherical end part anchored in column for turn in horizontal and vertical planes. EFFECT: improved adaptability for operation on soft ground. 2 cl, 4 dwg