Auxiliary steering system for hinging vehicle

The invention belongs to the field of mechanical mining equipment, and particularly relates to an auxiliary steering system for a hinging vehicle. The auxiliary steering system for the hinging vehicle comprises a first hydraulic cylinder and a second hydraulic cylinder, wherein piston rods and cylinder bodies of the first and second hydraulic cylinders are respectively hinged onto two (front and back) sections of vehicle bodies, the first and second hydraulic cylinders are respectively arranged at the left and right sides of a connecting part of the two section of vehicle bodies, oil supply pipelines of the first and second hydraulic cylinders are communicated with a system oil path of the hinging type vehicle, and an auxiliary oil supply system is also arranged on the hinging vehicle, and is connected onto a pipeline arranged between the first and second hydraulic cylinders and the system oil path through a three-way joint. The auxiliary steering system provided by the invention has the advantages that the equivalent oil supply can be provided for the hydraulic cylinders, and when the vehicle is damaged and power is lost, the auxiliary oil supply pipeline can ensure the smooth steering of the vehicle, so that the dragging can be conveniently realized.