Compared with full trailers, semi-trailers are mainly used for long-distance cargo transport, which can be further subdivided in terms of type, and different types of semi-trailers are suitable for transporting different goods. For example, self-discharging semi-trailer is suitable for the transportation of bulk and scattered goods such as coal, ore and building materials, low-flat semi-trailer is suitable for the transportation of vehicles, machines and other heavy-duty goods, warehouse semi-trailer is mainly used for the transportation of agricultural by-products and other light foam goods, tank semi-trailer is mainly used for the transportation of liquids, bulk materials and bulk cement, etc., and van semi-trailer can be used for the transportation of household appliances, light textile goods, construction materials and the transport of charted goods. What are the parts of a semi-trailer? Generally speaking, semi-trailers can be structurally divided into frame, top load, traction pin, suspension system, travel mechanism, electrical system, support device, protection device and trailer accessories. 1、Frame, the main structure for loading goods, consists of large beam, welded I-beam, support beam, connecting beam, side beam, lock, traction pin connection device, panel, etc. 2、Top load, refers to railings, gantry, etc., auxiliary 3、Traction pin, which is an important component that connects the semi-trailer with the tractor and bears the traction force to drive the trailer forward.
4、Suspension system, used to connect the frame and axle device, mainly used to support the load, to slow down the impact of the vehicle and cargo dynamic load, generally can be divided into steel plate suspension, single point suspension, air suspension, rigid suspension four kinds, performance differences, need to choose according to the use of the vehicle. 5、Walking mechanism, mainly refers to the axle system, steel rims and tyres, the main role is to bear the weight and maintain the vehicle driving, in the frame The LUEN axle, with its reliable quality and inexpensive price, is the most popular among users.
6、Electrical system, consisting of cable, air circuit, lamps, the main role is lighting, braking, safety warning. 7、Supporting device, the role is to support the trailer when the semi-trailer off-hang. 8、Protection device, generally can be divided into side protection and rear protection. 9、Trailer accessories, such as toolbox, spare tire rack, cartridge and other small accessories. Compared with the monocoque transport vehicles, the comprehensive economic benefits of semi-trailer is better, can improve transport efficiency 30-50%, at the same time can reduce 30-40% of transport costs, for the transport industry organization form has played a certain role in promoting.
