1. Characteristics of XYX-3 wheeled hydraulic core drilling rig ·The drilling rig is equipped with wheeled walking mechanism and hydraulic cylinder support, which is convenient for the whole machine to be relocated and easy to adjust the level of the drilling rig. ·Using the ball card holding mechanism to replace chuck,can implement non-stop down rod,convenient operation,safe and reliable. ·With oil pressure feeding mechanism to improve drilling efficiency ·The pressure gauge is provided with the pressure gauge of the bottom of the hole, so it is easy to master the hole in the hole. ·The lifting and falling tower is hydraulic operation, which is convenient and reliable. ·The diesel engine uses electric start to reduce the labor intensity of the worker. 2. Parameters of XYX-3 wheeled hydraulic core drilling rig Drilling depth 100/ 250 / 300/ 600 m Maximum opening diameter 300 / 200 /150 / 75mm Max open hole caliber 300mm Final hole diameter 75mm Drill pipe 60mm Borehole inclination 90°-65° A vertical scroll of painting Vertical rotation speed of vertical axis 30-1050r/min Vertical reversal speed 29-137r/min Vertical axis stroke 560mm Diameter of shaft inner hole 96mm Vertical axis lifting capacity 60kn Main hoist (hydraulic drive) Single rope lifting speed 0-45m/min Wire rope diameter 14mm Band width 90mm Drum diameter 300mm Reel capacity 30m Maximum lifting capacity of single rope 40kn Auxiliary hoist (hydraulic drive) Drum diameter 140mm Diameter of steel wire 6mm Reel capacity 450m Mud pump Mud pump BW-250 Horizontal three cylinder Flow 250 l/min Working pressure 7mpa Inlet diameter 75mm Outlet diameter 50mm Gear oil pump Double oil pump CBF-F63/25 Front-end flow pressure 63 l/min 20mpa Backend flow pressure 25 l/min 20mpa Rig power Diesel engine FAW Xichai 4 cylinder Electric machinery Y180L-4 22KW Wheeled chassis Bearing capacity of wheel chassis 3.5t Wheel chassis length 2.6m Wheel chassis width 2m Wheel chassis height 0.6m