The invention relates to a walking running device for a self-advancing
tail, which mainly comprises a body, running oil cylinders, lifting oil cylinders, oil cylinder holders, a roller frame, guide rails, a floating carrier roller, a movable trolley base and a hydraulic mechanism. Aiming at the actual situation that the self-advancing
tail is 20 meters long, 1.5 meters high and 40 tons heavy and is difficult to move, traction movement is changed into walking running movement, a high-power hydraulic power is adopted, the lifting oil cylinders are symmetrically arranged on the left, right, front, middle and rear of the body, the guide rails and the running oil cylinders are arranged on left and right sides of the body; and when the body is lifted, the guide rails are pulled and pushed by the running oil cylinders synchronously to slide forwards, so that the function of walking and running synchronously is realized, wherein the lifting height of the body is 220 millimeters, the displacement at each
stroke is 1,200 millimeters, and the power of the lifting oil cylinders and the running oil cylinders is 31.5 MPa. The self-advancing
tail can move forwards in a left-to-right or right-to-left manner, and the walking running device is advanced in design, reasonable in arrangement, convenient for operation, safe, stable and reliable.