Design and Dynamic Analysis of Drill Pipe Car Lifting Mechanism

Abstract

The paper designed a simple and neoteric lifting mechanism and calculated its dynamic analysis in order to meet the design requirements of the transferring vehicle in drill pipe car. And equivalent moment of inertia and equivalent of the torque are worked out by using MATLAB. Finally, it is a feasible mechanism showed by the computational results and provides a basis for the subsequent structural design and optimal design. The paper designed a simple and neoteric lifting mechanism for coal mine tunnel drilling rig, including manipulator and drill pipe box. The role of manipulator is delivering the rods in drill pipe box to centerline of power head chuck and the automatic twist drill pipe was realized. The role of drill pipe box is stored the rods in accordance with the reservation number and arrangement. In order to realize the t requirement of different level drilling process, the drill pipe box has elevator function itself. Automatic lifting mechanism tunnel drilling rig was designed by the hydraulic cylinder driving fork scissors mechanism, having a large lifting force and the advantages of higher range. The fork scissors mechanism was link gear, the hinge pivot for horizontal movement was drive by the hydraulic cylinder, the drill pipe box was done exercise for vertical direction under the role of the linkage force transferring between the articulated points. The lowest position for drill pipe box movement was 0.3 meters, the highest position requirement was 0.7 meters. The four connecting rod length are same m