Recently, a large-scale Han Dynasty tomb burial group was discovered at a construction site in Wen County, Henan Province, and more than 100 ancient tombs were discovered. More than 20 ancient tombs have been excavated under protection and more than 200 pieces of cultural relics such as pottery, bronze ware, ironware and ancient coins have been unearthed. It is reported that the entire archaeological discovery is of great significance to the study of social conditions, geographical characteristics, and funeral customs at that time. At present, archaeological work is still in progress.
Full trailer generally adopts pneumatic solid tire, with low plate height and large loading capacity. There is no risk of tire breakage and burst. Safe, simple and durable. He has no power and needs a tractor or forklift to tow. Usually, one or more flat cars and a forklift or tractor form a train of vehicles to carry out the plane transportation of goods or the handling of large equipment. It is widely used in airports, ports, railway stations, factories and large warehouses. The efficiency of goods transfer and translation is greatly improved. Reduce the consumption cost of forklift and manpower.
There are many kinds of full trailers, and their basic frame, body and walking system are basically the same as those of trucks. The rail type carriage is generally made of thin steel plate. The longitudinal concave edge plate is stamped on the carriage rail, and the convex rib is welded horizontally to increase the rigidity of the carriage and reduce the quality of the carriage; The bottom plate of the carriage is generally made of wood and covered with thin steel plate, or the bottom plate of iron wood mixed structure is adopted; The frame is usually made of 16Mn steel plate, pressed molding material, welded or willow connected. The longitudinal and transverse beams of the frame mostly adopt groove interface structure, and the two longitudinal beams are arranged in equal width in front and back, so that the frame has good bending resistance.
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