What are all hung and semi-trailer?
Semi trailers are generally three axle semi trailers, and their types are divided into eleven meters, warehouses, semi trailers, thirteen meters hurdles, low flat, semi trailers and many other species. The utility model relates to a heavy transportation vehicle which is connected with a semi-trailer head through a traction pin.
A semi-trailer is a trailer that is placed behind the center of gravity of the vehicle (when the vehicle is uniformly loaded) and equipped with a coupling device that can transfer horizontal and vertical forces to the tractor.
Full trailer load by all its own, and the locomotive is only linked with the hook. The locomotive does not need to bear the load of the trailer, but only provides power to help the trailer overcome the friction resistance of the road surface. All trailers are mainly used in the transportation of docks, factories, ports and other fields. (as shown in Figure 1)
