The support Cart is generally driven by hydraulic transmission. Because of its large load, high efficiency and high safety, the support Cart is used more and more widely in underground moving operations.

Its hydraulic system is mainly composed of closed travel system, steering system, control system, braking system, auxiliary system and Plumbing. The working process of the closed travel system of the support Cart: the engine transmits power to the one minute two dividing box, and then the dividing box distributes power to two closed travel pumps of the same specification, and the travel pump transmits hydraulic power to two front motors and four rear motors. By changing the engine speed, i.e. the swashplate swing angle of the variable displacement pump, infinite speed regulation can be achieved and smooth commutation can be achieved.

The lifting and walking pump is equipped with DA function and pressure cutoff function, which can achieve the maximum power of the engine by matching with the motor and prevent the engine from stalling, ensuring strong traction under harsh underground road conditions.