Research on the Hydraulic System of Double Power Heads in Anchor Drilling Rig

Abstract

In order to solve the problem of mutual interference between the double power heads in anchor drilling rig and improve the efficiency and reliability of the whole machine, a hydraulic system principle diagram of the anchor drilling rig is set up. According to the working principle of the anchor drilling rig, a simplified model is built and studied by AMESim software. Furthermore, the hydraulic system is tested on the simulation test bench. The result shows that when the double power heads operate under no load condition and rated condition, the output flow and pressure are independent and have no influence each other. The field test shows that the rotary and feeding action of the double power heads can meet the design requirements, the stable rotational speed of the power head 1 and the power head 2 are 354.1 r/min and 361.3 r/min respectively, and the stable output torque are 310.2 N·m and 308.5 N·m respectively. The results provide a theoretical basis for the optimization design of the double power heads in anchor drilling rig at the same time.