The LQ-300 crawler drilling rig is an impact rotary drilling rig with a low center of gravity, smoother and safer climbing, and strong adaptability. It adopts a new hydraulic technology with high turning torque, smooth and fast propulsion and lifting. The control panel and operating handle are centrally controlled, making the operation simple. The operator can stand on the side of the main engine to perform drilling operations, improving the safety factor of the operation Its internal structure is different from that of a general rock drill, and its air distribution and piston reciprocating mechanism are independent, namely the impactor Its front end is directly connected to the drill bit, and its rear end is connected to the drill rod The main technical parameters of this product (LQ-300 crawler drilling rig) are as follows: maximum drilling depth of 100m-300m, maximum drilling diameter of 300mm, drill rod length of 2000mm-3000mm, maximum stroke of power head of 4600mm, drill rod diameter of 89mm/108mm, lifting force of 25T, turning torque of 10000NM, bearing method: hydraulic crawler type, walking speed of 3000km/h, climbing ability of 30 °, external dimensions of 3000mm * 1700mm * 230mm, and total weight of 7000kg