PLANETARY ACTUATING TOOL OF HEADING MACHINE Russian patent published in 1994 - IPC

FIELD: mining industry. SUBSTANCE: cutting drums are mounted on frame of carrier on shafts for rotation about own axes and are connected to carrier of supplementary planetary gear by means of spacers with inclined surfaces. Axes of shafts of cutting drums are inclined to opposite sides from axis of central shaft. Tool of cutting drums having one relative and two transportation motions breaks all surface of face with chipping. Inclination of cutting noses to opposite sides from central shaft excludes jamming which leads to increased productivity. EFFECT: increased productivity of heading machine. 3 dwg