| 摘要 |
FIELD: mining.SUBSTANCE: invention relates to mining, specifically to a heading set designed for auxiliary mine workings. Heading set for auxiliary mines includes working element, protective cover, mechanism for movement of working element, erector arm tunnel driver, bearing frame, rotary lever. Working element is made in form of strikers with peaks, pivotally connected to movable platform fixed on one end of rotary lever and is equipped with hydraulic cylinder for controlling angle between longitudinal axes of hammers. Each of hammers is equipped with mechanism for rotation of peaks in form of helical pair with ratchet wheel, consisting of segments with springs with possibility of their reciprocal motion.EFFECT: such a solution of system provides clear delineation of bottom-hole zone in mine roof, reduces weight of actuating element, which reduces time spent on mounting-dismantling works, increases productivity and efficiency of treatment of bottom-hole zone, as well as safety of works.1 cl, 7 dwg |
