The Semi-trailer is a kind of model which is used more commonly in the modern logistics and transportation industry. It is composed of two parts: tractor and semi-trailer. Normally, tractors and semi-trailers carry their own license plates, with semi-trailers having one additional tag than tractors.
Normally the owners of the "locomotive", in fact, is a popular name, referring to the tractor. The tractor is the source of driving power of the semi-trailer, with driving ability, and through the connection device to drag the semi-trailer driving, can also be separated from the semi-trailer independent driving.
The opposite of the locomotive is the "bucket", which refers to the semi-trailer behind the tractor, which is mainly used for loading goods. Typically, it does not have a driving force itself, so it needs the help of the tractor to realize driving. According to the different bucket and Semi Trailer price, it can be divided into low flat semi-trailer, grille semi-trailer, container semi-trailer and so on, which are used for different cargo transportation.
The locomotive of the semi trailer assumes the driving function of the vehicle and directly determines the forward power of the vehicle. At present, the price of the semi-trailer locomotive on the market is typically between 250,000 and 320,000, depending on the selected brand and model. The domestic semi-trailer tractor industry is also a lot of excellent brands, such as Sinotruk, liberation, Shaanxi Automobile, Dayun, Oman, Sany, Dongfeng, CIMC, Gong ring, owners can refer to when choosing.
Compared with the locomotive, the price of the semi trailer bucket is considerably cheaper, typically about 90 thousand. The main components of the bucket include frame, legs, gantry frame, column, suspension, axle, tire, protection, etc.. The axle is the key component of the relationship between the bucket bearing performance is excellent or bad, brake sensitive or not, and the tire, maintain the vehicle running.
Nowadays, the trend of lightweight is prevailing in the semi-trailer industry, thus is the axle. More and more brands launch lightweight products, aiming to achieve the overall weight reduction of vehicles by reducing their own weight. However, unlike other components, the main function of the axle is load-bearing. How to achieve lightweight without affecting the load-bearing capacity of the axle requires a certain strength and technical foundation.