Achievement Of Automatic Control Hole Drilling Of CMJ2-27 Rock Drill

The rock drivage plays an important role in coal production and mine construction, have a view of the development history and the current status of rock excavation, the blasting method is still the main form of hard rock tunneling. The hydraulic rock drill is used widely in rock tunneling In recent years, which improved the mechanization level of rock tunneling. In order to perform the rock drill better, a intelligent rock driller is developed, which can realize automatically locate and hole drilling, to further improve work efficiency while saving labor costs.This thesis has an introduction to the development history, current method as well as the features of rock tunneling, and described the characteristic and structure of CMJ2-27 automatic location rock drill. Especially had a research and analysis to the hydraulic drifting mechanism, and made a simulation model of drilling boom and Finite Element Analysis model, make a kinematics analysis to the rock driller at the natural resting state and dynamic analysis to the whole process of the drilling state in the roof, side wall as well as the bottome, also made a strength and rigidity analysis to guarantee the reliability. It also made a analysis to the positive and inverse solution mature, and listed the detailed prodess of positive solution in formula form, and explain the process of inverse solution process in graphic from, and verify the results by programe, presented the scope of individual boom and scope when both boom work simutaneously.CMJ2-27 automatic positioning rock driller is tested by routine hole drilling after it is developed successfully, and the power, strength and rigidity are all proved to be good, can meet the hole drilling requirements. The automatioc positioning hole drilling is also been testing, the accuracy can meet the pre-set requirements.CMJ2-27 automatic positioning Rock Driller can improve the driving efficiency, reduce labor costs and improve operational safety the development filled the gaps of CNC operation of tunneling and drilling equipment.