Medium-and-large hole type engineering driller

• Main Authors: ZHANG LIANGFU, ZHOU YUEYANG, MAO WEI
• Format: Patent
• Language: Chinese; English
• Published: 07.08.2013
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to a medium-and-large hole type engineering driller. The medium-and-large hole type engineering driller comprises a base. A guide frame is arranged on the base. A fixing frame for fixing the guide frame is arranged between the guide frame and the base. Ladder stands extending to the top of the guide frame are arranged on the outer side faces of two sides of the guide frame in the vertical direction. Guide grooves are arranged in the inner side faces of the two sides of the guide frame in the vertical direction. A cross beam is arranged on the top of the guide frame. A protective fence is arranged on the top of the cross beam. A moving block is arranged on the cross beam and provided with a plurality of pulley blocks. A rope is hung on the pulley blocks and wound on a winch winding drum. Two ends of the rope are connected with the winch winding drum and a pulley hanging clamp respectively. A winch is arranged on a sliding base of the base. The pulley hanging clamp is connected with a