Design and Application of High Power Full Hydraulic Drive Underground Drill

摘要

In order to solve the problem that lower hole-making rate of gas drainage in soft outbursting coalbeds, the ZDY12000 drill is designed. The drill is composed of drilling system and dynamic system. The drilling system including spinner, gripper, feeding body and frame, dynamic system including electromotor-pump, oil tank, control console and crawler. The test and application show that ZDY12000 drill has the features of large torque output, higher hole-making rate, high drilling speed, moving convenience, which has good application prospects.