Semi trailer is a common type of vehicle in long-distance cargo transportation. It has no driving force and needs to be connected with the tractor through the traction pin to drive by the driving force of the tractor. The semi-trailer has large transportation volume and many types of goods. Compared with the "single" vehicle, it can better improve the comprehensive economic benefits of highway transportation.

Semi trailer axle refers to the axle assembly specially used on the semi-trailer. It is a key component of the vehicle chassis. It usually includes axle, brake, suspension and other accessories. It is connected with the trailer body through the suspension. Wheels are installed at both ends of the axle. Its main function is to carry the load of the trailer and maintain the normal driving of the vehicle.

What is the axle of a semi-trailer? Old drivers pay more attention to these when choosing axles

The axle is directly related to the load-bearing, braking and driving of the semi-trailer. In order to fully ensure the attendance, safety performance and economic benefits of the semi-trailer during the long journey, it is very important to choose a high-quality axle. Especially in Southwest China and other places, there are many mountain roads in long-distance transportation, the terrain is rugged, long and curved ramps are common, and the driving conditions of vehicles are severe, which puts forward higher requirements for the quality and performance of trailer axle.

So, what aspects do car owners pay more attention to when purchasing axles? According to the relevant market research results, Xiaobian summarized as follows:

Pursue lightweight design of axle, reduce dead weight and load more goods

Especially after the implementation of the new national standard gb1589, the self weight of vehicles has become a sensitive issue for car owners. The new national standard gb1589 gives a clear standard for the weight limit of trailers with different axle numbers, which has also become the basis for the traffic management department to control overload. How to reduce the weight of the vehicle on the premise of meeting the load demand has become a concern in the industry.

Relevant data show that the axle weight of three axle trailer accounts for almost more than 20% of the total weight of trailer. Therefore, axle weight reduction is a crucial factor to realize trailer weight reduction. However, compared with other components, the weight reduction of the axle is more difficult, because one of the main functions of the axle is load-bearing. If the blindly pursuit of the weight reduction of the axle affects the load-bearing performance, the gain is not worth the loss. How to realize the lightweight design of the axle while ensuring the constant or even stronger bearing capacity of the axle has become the key research object of axle enterprises at home and abroad.

What is the axle of a semi-trailer? Old drivers pay more attention to these when choosing axles

In this regard, Darong axle has made good achievements. Starting from the design and R & D link, it focuses on the goal of strong performance + lightweight. The raw material is 20Mn2 high-strength alloy seamless steel pipe, and the one-piece heat treatment molding technology and powder spraying + electrophoresis process are adopted. After repeated tests and tests, the weight of 13T axle with large demand in the market is successfully reduced by 15% - 25%. While reducing the self weight, the high-strength bearing performance remains unchanged, and the problems such as bending deformation are eliminated.

Extend maintenance cycle and improve operation efficiency

In recent years, with the continuous development of logistics and transportation industry, the mileage of vehicles is also increasing. According to relevant research data, the annual driving mileage of semi-trailer for long-distance transportation is generally about 200000-300000 km, and the vehicle mileage of some logistics enterprises with sufficient supply of goods is even more. Under such high-intensity transportation pressure, vehicle maintenance can not be ignored.

However, the axle is different from other accessories. The maintenance workload is relatively large, and it also needs some relevant knowledge and technology. Even if it is sent to a special network, the average maintenance takes about 2-3 hours, which has a great impact on the daily use of car owners.

On this basis, it has gradually become an industry trend to extend the maintenance cycle and reduce the operation difficulty.

In response to this phenomenon, Darong group has launched an axle with a longer maintenance cycle, which effectively reduces the shutdown time of car owners. At the same time, it simplifies the maintenance process, makes the operation steps simpler and improves the operation efficiency.

What is the axle of a semi-trailer? Old drivers pay more attention to these when choosing axles

Reliable quality + reasonable price, good Hukou monument

Nowadays, there are more and more axle manufacturers, and the axle products on the market are dazzling, from high-end to low-cost, and then to the small workshop products of "three noes".

With more products, the purchase concept of many car owners has also changed, from the original single demand, such as quality and price, to paying more attention to the comparison of the comprehensive quality of products, not only high quality, but also appropriate price, good service and high product guarantee. This puts forward higher requirements for axle enterprises.

As the representative of senior axle enterprises in China, Darong group has more than 20 years of axle R & D and manufacturing experience, integrating R & D, design, production, sales and service. As a popular product in the market, Darong axle is strong and durable, with long service life and excellent strength and toughness performance. It has successfully passed the ISO9001:2008 quality management system certification. Compared with other brands of the same quality, the price of Darong axle is more reasonable and cost-effective, which has won wide praise from users.

What is the axle of a semi-trailer? Old drivers pay more attention to these when choosing axles

Axle is a key component of semi-trailer, which is not only related to economic benefits, but also related to vehicle safety. Darong axle has made good achievements in lightweight design, quality reliability, cost performance and maintenance cycle. In the future, Darong group will continue to spare no effort in R & D, production and improvement of products to meet the more needs of car owners.