The main components of the full trailer

A full trailer is generally composed of a frame, a body, a traction device, a steering device, a suspension, a walking system, a braking system, and a signal system. The upper wing surfaces of the straight beam frame rails are all straight. The advantages are that the bottom plate of the trailer bed is flat, the manufacturing process is simple, the ground clearance is generally high, and the longitudinal passability is good. Heavy-duty flatbed trailers are designed to meet their structural and usage requirements. The frame is mainly composed of main beam, cross beam, support beam and side beam. The load of the whole vehicle is transmitted to the ground through the support beams, suspensions, wheel axles and wheels between the beams. The main beam, support beam and side beam of the frame are welded parts with box-shaped section and have large torsional rigidity. The beam connecting the main beam extends to both sides and is an I-shaped welded structure with variable cross-section, which has high transverse bending strength. The height of the main beam of the frame is relatively large and extends downward, so that the longitudinal bending strength of the frame is improved without increasing the height of the cargo bed. A turntable mechanism for installing a balance suspension is arranged under each support beam to realize all-wheel steering.