Detection device for tunnel detection vehicle

[0015] figure 1 In the illustrated embodiment, the base of the radar cart 1 is fixed on the top of the innermost first-level sleeve of the multi-stage telescopic arm 4, and the bottom of the outermost first-level sleeve of the multi-stage telescopic arm 4 is connected to the No. 1 detection arm base 5 by a pin. , The hydraulic winch and the wire rope 2, the outermost piston rod of the multi-stage plunger hydraulic cylinder 3 is installed on the outermost sleeve of the multi-stage telescopic arm 4 through bolt connection, and the most of the multi-stage plunger hydraulic cylinder 3 The top end of the inner first-stage piston rod is connected with the radar trolley 1, and the two ends of the swing hydraulic cylinder 6 are respectively connected with the outermost first-stage sleeve of the multi-stage telescopic arm 4 and the No. 1 detection arm base 5 through pins. The entire detection arm is installed on the rover platform 7. Before operation, after opening the vehicle guard 8, the cavity of the multi-stage plunger cylinder 3 is filled with hydraulic oil, and the multi-stage plunger cylinder 3 is extended step by step, so that the radar trolley 1 gradually approaches the inner wall of the tunnel lining. Adjust the pressure of hydraulic oil in the large cavity or small cavity of the swing hydraulic cylinder 6, and change the swing angle of the detection arm, so that the radar trolley 1 reaches the position of the inner wall of the tunnel lining that needs to be detected. After the detection operation is completed, remove the oil pressure in the multi-stage plunger hydraulic cylinder 3, drag the radar trolley 1 with a hydraulic winch and wire rope 2, retract the multi-stage telescopic arm 4, and then fill the small cavity of the swing hydraulic cylinder 6 The hydraulic oil makes the multi-stage telescopic arm 4 swing to the retracted position, which completes the retracting of the radar trolley 1.

[0016] in figure 1 , figure 2 , Figure 4 , Figure 5 In, the multi-stage plunger hydraulic cylinder 3 and the multi-stage telescopic boom 4 each have three stages. image 3 Among them, the multi-stage plunger hydraulic cylinder 3 and the multi-stage telescopic arm 4 each have four stages. In each figure, 45° represents the maximum swing range when the probe arm is extended.

[0017] in Image 6 Among them, No. 1 probe arm base 5, No. 2 probe arm base 11, No. 3 probe arm base 9, No. 4 probe arm base 10, No. 5 probe arm base 12, corresponding to five sets of probe arms, respectively installed on the rover platform 7 The five positions are arranged in an X shape. The extension sequence of the five sets of detection arms is three, two, one, four, and five. Adjust the five radar trolleys 1 to the designated position on the inner wall of the tunnel lining in turn, and then perform simultaneous detections on the tunnel lining wall as the probe car moves. operation. After the detection operation is completed, the radar trolley 1 of the fifth, fourth, first, second, and third detection arm is taken back in sequence.