After January 21, 2021, dump semi-trailer
A dump truck is a vehicle equipped with an automatic dumping device in its compartment. Also known as a dump truck or engineering vehicle, it consists of a car chassis, hydraulic lifting mechanism, power take-off device, and cargo compartment. In civil engineering, it is common to work together with excavators, loaders, belt conveyors, etc. to form a loading, transportation, and unloading production line for the loading, unloading, and transportation of earthworks, sand and gravel, and loose materials. Due to the automatic tilting of the loading carriage at a certain angle for unloading, it greatly saves unloading time and labor, shortens transportation cycle, improves production efficiency, reduces transportation costs, and indicates the loading capacity. It is a commonly used transportation machinery. Introduction: The structure of the engine, chassis, and cab is the same as that of a typical heavy-duty truck. The carriage can tilt backwards or sideways, and the piston rod movement is controlled by the control system. Backward tilting is more common, and pushing the piston rod causes the carriage to tilt. A small number of bidirectional tilting. The high-pressure oil enters the lifting hydraulic cylinder through the distribution valve and oil pipe, and there is a driver's cab safety protection plate at the front end of the carriage. The hydraulic tilting mechanism of the carriage is composed of an oil tank, a hydraulic pump, a distribution valve, a lifting hydraulic cylinder, a control valve, and oil pipes. The engine drives the hydraulic pump through the transmission and power take-off device, and high-pressure oil enters the lifting hydraulic cylinder through the distribution valve and oil pipe, pushing the piston rod to tilt the carriage.
