COMPLEX FOR HOLE REAMING FROM BELOW Russian patent published in 2002 - IPC

FIELD: mining industry. SUBSTANCE: complex includes surface equipment, force member for fastening of equipment carrying hole reaming unit formed by units of vertical and horizontal core cutting- or sawing-out. Surface equipment includes system of formation pressure compensation. Force member of complex designed for fastening of equipment may be made in the form of multipurpose rope. Common body of units of vertical and horizontal cutting- or sawing-out is equipped with unit for pressing to hole walls. Complex surface equipment includes winch of multipurpose rope and winch of rope of mobile part of lift located in container of formation pressure compensation system. Complex may be provided with system for hole protection from filling with stones and ground and capable of moving over multipurpose rope up to ground surface. For guaranteed delivery of sawn-out cores, complex lower part may be provided with lift consisting of stationary and mobile parts whose cabs have levers turning round their horizontal axis. EFFECT: higher productivity and reduced power consumption. 9 cl, 21 dwg