MANIPULATOR OF RIG FOR DRILLING OF HARD ROCKS Russian patent published in 2000 - IPC

FIELD: mining industry. SUBSTANCE: invention refers to rigs drilling hard rocks while driving workings. Manipulator of rig for drilling of hard rocks has frame, boom hinged by means of vertical and horizontal axles to frame, hoisting cylinder anchored between frame and boom, rotary cylinder installed between frame and boom, support for feeding beam hinged to another end of boom with the use of horizontal and vertical axles, tilting cylinder anchored between support and boom and cross-piece rotary cylinder fixed between support and boom. Rotary cylinder is mounted at some angle with regard to longitudinal axis of boom and deviates from frame towards end of boom along vertical downwards so that when boom is center of upper and lower angles of elevation rotary cylinder is in horizontal position. EFFECT: increased drilling efficiency thanks to more accurate guidance of boom on to drilling point and avoidance of unproductive time losses for manipulation of boom. 5 cl, 3 dwg