March 22, 2022, High and Low Concave Beam Second Bridge Low Flat Semi trailer
Usually, the concave beam (or well shaped) frame has a goose neck in the front section (the traction pin of the goose neck is connected to the traction saddle on the tractor, and the rear end of the goose neck is connected to the semi-trailer frame), a cargo platform in the middle section (the lower part of the frame), and a wheel frame (including the wheels) at the rear end. The frame is a through beam structure, and the longitudinal beams adopt a straight and movable goose neck type. The web height ranges from 400mm to 550mm, the longitudinal beam is welded by automatic submerged arc welding, the frame is shot blasted, and the crossbeam penetrates the longitudinal beam and is welded as a whole. Composed of a series of dry plate springs and suspension supports, the structure is reasonable, with strong rigidity and strength, used to support loads and mitigate impacts. The frame is welded with steel, and the frame structure composed of longitudinal beams and reinforced crossbeams is sturdy. The walking structure uses high-strength steel material, and the vehicle has a light weight, meeting different road bearing capacities. The strength, stiffness, and toughness of the frame have the characteristics of strong bearing capacity, no deformation, and ensuring its ability to resist torsion, earthquake, and bumps.
