Auxiliary steering system for articulated vehicle

The utility model belongs to the field of mechanical mining equipment and in particular relates to an auxiliary steering system for an articulated vehicle. The auxiliary steering system for the articulated vehicle comprises a first hydraulic cylinder and a second hydraulic cylinder, piston rods and cylinder bodies of the first hydraulic cylinder and the second hydraulic cylinder are hinged to a front section of vehicle body and a rear section of vehicle body, hinge shafts are vertically arranged, the first hydraulic cylinder and the second hydraulic cylinder are arranged on the left side and the right side of the connection position between the two sections of vehicle bodies, and oil supplying pipelines of the first hydraulic cylinder and the second hydraulic cylinder are communicated with a system oil channel of the articulated vehicle. An auxiliary oil supplying system is further arranged on the articulated vehicle, and the auxiliary oil supplying system is connected to pipelines among the first hydraulic cylinder, the second hydraulic cylinder and the system oil channel through a three-way connector. The auxiliary oil supplying system can equivalently supply oil for the hydraulic cylinders. When the vehicle is out of order and loses power, the auxiliary oil supplying system can guarantee that the vehicle can be steered smoothly and can be dragged conveniently.