ROBOMOLE Russian patent published in 1995 - IPC

FIELD: mining; drilling of curved inclined holes. SUBSTANCE: robomole has drilling head with working member. Drilling head consists of front section 1 and rear section 2 interconnected by controlled deflecting tool. Rear section 2 has shaped body 9 on which front supporting member 7 and rear supporting member 8 are mounted. Robomole is additionally provided with path-control transducers 10. Each transducer 10 has measuring rollers 12 and 13 and reading device. The latter are installed in body 17 which is installed longitudinally on rear section 2 of drilling head between supporting members 7 and 8. Transducer 10 is secured to body 9 and connected with it by means of bracket which is hinged with body 17 of transducer. Mechanism for pressing measuring rollers 12 and 13 is secured to body 17 os transducer and has traction member located longitudinally along body 17 and hinged to bracket center with its end. In this case, axes of hinges are parallel to one another and square to radial axis of robomole. Roller squeezing mechanism serves to press out the rollers during withdrawal from hole. When measuring rollers move along hole wall, covered path information is received. EFFECT: higher efficiency of operation due to increased information capabilities. 4 cl, 11 dwg