Combined walking hydraulic system

The utility model relates to a hydraulic control technology field specifically discloses a combined walking hydraulic system, including hydraulic tank, traveling pump system, CD -ROM drive motor system, power switching valve, fluid pressure line and two antithetical couplet electromagnetism valvess, the traveling pump system includes variable pump, proportion solenoid valve, slippage pump, the CD -ROM drive motor system includes axial piston motor, left radial plunger piston motor and right radial plunger piston motor, the power switching valve includes that two connect pump hydraulic fluid port, a plurality of actuator port, a pair of pilot operated directional control valve. The utility model has the advantages that, same kind of special vehicle of effectual solution can satisfy two kinds of operational environment on highway and the railway simultaneously, and the hydraulic control system that should walk in addition has high low -speed and switches over, and functions such as infinitely variable speed ado