Development and application of ZDY4300LF narrow split drilling rig

Abstract The inconvenient drilling rig relocation, stabilization and azimuth adjustment lead to many problems in the construction of gas drainage drilling in narrow roadway, such as long auxiliary time, labor intensity of workers, low comprehensive drilling efficiency. Through the innovative layout, the power unit and the drilling unit are respectively arranged on two crawlers, and the ZDY4300LF narrow-body split crawler drilling rig is developed. The drilling rig adopts a modular design idea, Arranged the pump station and console on the pump truck. The feed revolving device and the stabilizing device are arranged on the drill carriage. The drilling rig and the pumping station are connected by high-pressure hoses. When drilling for gas drainage, the location of the drilling rig and pump truck can be arranged according to the terrain conditions to obtain the best orientation for the drilling construction. The industrial test of the drilling rig shows that the ZDY4300LF narrow-body split crawler drilling rig has the characteristics of compact structure, convenient operation, and convenient moving and relocation, which can solve the problem of gas drainage in narrow tunnels in underground coal mines. Industrial test of drilling rig shows that ZDY4300LF narrow split crawler drill has the characteristics of compact structure, convenient operation, convenient moving and moving, etc.