Sinotruk SITRAK：Structural features of a dump truck for dump truck manufacturers in china.
The characteristics of the dump truck cabin can be tilted to a certain angle, so that the goods can be unloaded inside. Carriages tilt.
Based on the power of the engine of the dump truck, dump bodies. The loading compartment automatic tipping certain angle unloading, unloading time and labor-saving greatly shorten the transport cycle, improve production efficiency and reduce transport costs, transport machinery is used. Dump Truck 4 parts of the engine, chassis, cab and compartment. The same engine, chassis and cab structure and general truck. Carriages can roll backwards or sideways tipping, after more common to the tipping minority bi-tipping. The carriages front cab security plate. Compartment the hydraulic tipping agencies by the fuel tank, hydraulic pump, distribution valve lift hydraulic cylinder, push rod to the carriage tipping. By the operating system to control piston rod movement, and allows the carriage to stop in any need to tilt position. Compartment using its own gravity and hydraulic control reset. The advantages and disadvantages of single-cylinder and twin-cylinder: single cylinder straight to the top of the fuel tank cost, cylinder stroke, the lifting mechanism is relatively simple manufacturing process, generally for a multi-section cylinder; single-cylinder compound lifting mechanism is more complex assembly process demanded high, but the cylinder stroke is small, simple structure, low cost. Force of two forms of lifting mechanism is in good condition. Twin-cylinder is the general form of a for straight top as EQ3092, simple structure, low cost, but force poor condition.
Dump truck since the beginning of the 20th century now since the continuous development of maturing and has become one of the main cargo transport vehicles today. With the development of the automotive industry, the dump truck constantly using new materials, new processes, and improve the quality of the utilization factor, with a large speed range and high transmission efficiency, control and manipulation of better, more convenient.
Standards and requirements of the dump truck part
Tipper wagons should lift, steady decline, ran, collision and catching are not permitted; the wagons maximum lifting angle of the theoretical design value of about 2 °; 10% overload conditions, the wagons were lifting 10 ° and 20 °, stay 5min, wagons since lowering the amount shall not exceed 2.5 °. Wagons shall comply with the following requirements: compartment smooth surface, the outer surface does not allow significant irregularities; has sufficient rigidity and strength; the compartment length allowable difference 8mm, straight and parallel in both sides of the beam must be controlled at less than 3mm; two diagonal wire size difference can not be more than 10mm. Should fit in the compartment base with compartment chassis deformation can not fit the distance shall not be greater than 6mm; the cabin rear compartment plates with compartments backend should fit, maximum clearance for the upper end is less than 3 mm, the lower end of the small 1mm; lock Kai institutions to open and flexible, reliable locking. Trunk lift 3 ° can keep locking state, give rise to 5 ° -8 ° ensure that all open, the other should be in line with QCn20951-1999; the goods unloaded manipulation mechanism should be flexible, accurate, and reliable; wagons are not allowed in the process of moving The automatic lifting phenomenon. The trunk lift maintenance, shall be employed to prevent the device from the drop wagons; hydraulic tipping device continuously at rated load lifting (lifted to half of the maximum lifting angle), down (without uninstalling the load does not move) 3000 times dump the reliability test, the test should meet the following requirements: hydraulic dump the parts of the device may not appear damaged in any way (except wearing parts); the trunk since lowering the amount should be consistent with the provisions of the National Institute of Standards; trunk-load lifted to the maximum lift The rise angle does not exceed the 20s; trunk-load from the maximum lifting angle time with the Vice chariotest fit down to no more than 20s.