COAL-MINING CUTTER-LOADER Russian patent published in 1997 - IPC

FIELD: coal mining machinery. SUBSTANCE: for mechanized underground coal mining in thin coal seams, continuous coal miner has gantry connected with conveyor frame and cutting part. Turning levers are rigidly connected by their one ends by means of brackets with cutting part, and by other ends they are connected with gantry movably due to compensation clearance. Turning of levers relative to gantry is performed with the help of hydraulic rams which by their one ends are connected with gantry, and by other ends - with levers. Gantry can be made with removable middle part, and extreme parts linked by longitudinal braces. EFFECT: high efficiency. 1 cl, 5 dwg