In recent years, the competition in the domestic transportation industry has gradually become white hot. Logistics enterprises or vehicle owners have put forward more urgent requirements for vehicle upgrading. Major vehicle enterprises continue to strengthen the development of new products, and the configuration of new products is higher and higher. Correspondingly, the renewal iteration of vehicle parts, especially key parts, such as axle, is faster and faster.

So, what are the main development trends of trailer bridge?

1. Lightweight.

At present, domestic long-distance transport vehicles are basically based on standard load. Facing the strict means of overload control by the state, how to pull more goods without exceeding the nuclear load has become an urgent problem in the hearts of the majority of car owners. As a result, lightweight trailers appeared.

In fact, in Europe, where Trailer technology started earlier, many years ago, through the application of new materials and technologies, the axle lightweight has been realized without changing the load-bearing performance of the axle, which provides a reference for domestic manufacturers to a certain extent. For example, Darong 13T disc axle adopts lightweight raw materials, which reduces the dead weight of the axle by 15-20% compared with traditional materials. At the same time, it adopts locally strengthened square axle beam and integrated heat treatment + one-time cold pushing technology to fully stimulate the strength, toughness, ductility and durability of raw materials, and greatly improve the bending and torsion resistance. For standard load users, it can help them load more goods without overload. For no-load users, it can help them save fuel, save energy and increase efficiency.

2. The maintenance cycle is extended.

Whether it is logistics enterprises or individual transportation owners, the driving mileage of vehicles is increasing, and the average annual driving mileage can reach 200000 km or more, which requires that the maintenance cycle of the axle should be extended accordingly. In this regard, Darong group starts with the hub system and adopts a multi-layer sealing structure, which can ensure that the lubricating grease does not overflow under the high-speed operation of the hub. At the same time, it can also avoid the entry of external dust particles, maintain the internal cleanness of the hub, improve the service life, and the maintenance cycle is 2 years or 500000 km, which is very convenient for users.

3. Intelligent.

This is mainly reflected in the tire pressure monitoring. This technology has been popularized on the trailer axle in Europe. It can monitor and control the tire pressure in real time, keep the tire at an optimal pressure value and prolong the service life of the tire.

With the continuous development of intelligent trend, the new axle can not only realize the real-time monitoring of tire pressure, but also realize the monitoring of braking system, such as monitoring the wear degree of brake pads, monitoring the temperature of brake discs, increasing driving safety and reducing vehicle operation costs.

4. Energy saving and environmental protection.

Energy conservation and environmental protection are the general trend, and the axle industry is no exception. It is understood that European designers have realized the axle with braking power generation function. The wheel hub can be equipped with a generator. When the vehicle brakes downhill, it can generate electricity automatically. Some refrigerated vehicles may generate enough refrigeration power for their own use through braking to save fuel.

The above four trends are not groundless. Some technologies have appeared in the domestic market, and the technologies that are still in the blank stage have also been applied in Europe. At present, there are many domestic axle enterprises. I believe that with the painstaking research and development of major manufacturers, we will be able to overcome these technical difficulties and let car owners use labor-saving and worry-saving axles as soon as possible.

When it comes to domestic axle enterprises, let's talk about another problem. At present, there are more than 200 axle factories in quanpu Town, Liangshan alone. Looking at the number of axle manufacturers in China, it goes without saying. When you open the search engine and search casually, the axle brands come out regardless of the number. The publicity gimmicks are the same. It is difficult to distinguish between true and false, Consumers do not know how to choose.

In fact, although there are many axle manufacturers, the product quality and strength level are different. We only talk about one aspect: production technology. As the key load-bearing unit of the trailer, how to realize the strength and toughness of the axle? The selection of raw materials is on the one hand, and the production process is more important. On the other hand, if the process is properly used, the mechanical properties of raw materials can be better stimulated. If the process and process are properly matched, all mechanical properties can be integrated and produced into a qualified axle. This process needs strength, technology and experience. However, at present, many axle brands do not have factories, so they buy semi-finished products and accessories from other manufacturers and sell them after assembly. On the one hand, the production process of semi-finished products is not controlled by themselves, and the quality is not counted by themselves. On the other hand, whether the assembly technology passes the customs is also a problem. The lack of unified production standards and the lack of final quality inspection links are the key factors affecting the quality of finished products.

Therefore, it is suggested that when choosing to buy the axle, owners should try to choose those businesses that produce one-stop products in their own factory from raw materials to finished products. If conditions permit, it is best to go to the factory for investigation. After all, this is a key component related to safety, and it can't be too cautious.