Study on automatic control system of borehole positioning parameters for mine roadway drilling rig

In order to realize an accurate attitude alignment of an exploration drilling rig in a coal mine roadway, and to meet the designed azimuth, height, angle a nd other positioning parameters and to ensure the strike accuracy of the borehole, an intelligent control technology and electro-hydraulic proportional control technology were applied to design the automatic control system of the borehole positioning parameters for the drilling rig in the coal mine roadway. Based on the kinematics model of the luffing mechanism in the drilling rig, a study was conducted on the positioning adjustment control principle and control strategy of the borehole drilling. Based on he control requirements, a system software was designed. The test showed that the designed the automatic control system of the borehole positioning parameters for th e dilling rig in the coal mine roadway, according to the input parameters by the operation personnel, could automatially complete the adjustment of the borehole positi oning parameters for the drilling rig. The parameter error could be controlled within the construction allowed scope of the borehole. Compared to the manual adjustmen t, the operation of the system would be safety and convenient and could improve the working efficiency.