Self-Propelled Hydraulic Module Multiple Axle Trailer

Self-propelled hydraulic module trailer (SPMT) is a special transport vehicle with complex functions, which integrates mechanical, electric and hydraulic systems,composed of multiple axle.

SPMT vehicle adopts electronic control hydrostatic drive system, electronic control hydraulic elevator system suspended, all-wheel independent steering hydraulic leveling, frame and support technologies such as 3/4, can realize carpooling transport load function, and drive, lifting and steering system functions are controlled by bus connection micro processing unit.

Due to its high mobility, flexible steering, good coordination and low requirements for the use of the environment, SPMT is especially suitable for equipment transfer on the engineering site and long and short distance transportation of segmentalized and large total sections. It has been widely used in the shipbuilding process and cannot be replaced by other means of transportation.

SPMT adopts static pressure drive system, the drive system includes a diesel engine and a hydraulic oil pump connected with the drive, steering and lifting systems. Adjustable axial piston pump acts on the piston motor installed on the drive shaft, and has an electronic control system to improve the efficiency and safety of the drive system.

The SPMT drive system works in a closed loop, and its control and regulation function is the same as that of the automatic transmission system, so it is impossible to have diesel engine overload or unexpected shutdown when the vehicle is running. The speed of the diesel engine is adjusted by the accelerator pedal, and the amount of hydraulic oil that drives the pump is automatically adjusted according to the speed of the diesel engine. Accordingly, the gear ratio between the driving pump and different hydraulic motors will also change, thus changing the walking speed.

Self-propelled hydraulic flat trailer(SPMT) is equipped with electronic overspeed safety protection device to prevent the vehicle running on slippery ground or when the drive suspension loses traction hydraulic motor overspeed and out of gear with other hydraulic motors, the device can also act as an independent locking device to prevent the movement of a single drive wheel.

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