Dynamic response analysis of hydraulic-mechanical composite drive system of anchor drill truck

In order to meet the unique adaptability of the anchor drilling truck driving on complex underground road surfaces and overcome the problem of slow transfer of tracked vehicles, a hydraulic-mechanical composite transmission wheel driving system is designed. The hydraulic, mechanical and ground models of the driving part are constructed and the model is verified. Finally, the driving power response of the vehicle's hydraulic-mechanical transmission on complex road surfaces such as plane roads, passing obstacles, climbing hills, and braking, turning conditions is simulated. The results show that the vehicle can drive on complex road surfaces, with a maximum speed of 5.76 km/h, a maximum long-distance climbing angle of 10.8°, and a small hydraulic system pulsation; when the vehicle brakes, the tyre rolling resistance, driving force, motor speed, pump output power, etc. are minimised at 1.7 s; the turning radius on the side offset to the centre of mass is small.