Why are disc axle and air suspension called the "golden combination"?
In recent years, disc trailer axles and air suspension can be said to be "wind and water" in the freight market, whether it is the strong push of regulations and policies or the general trend of vehicle technology development at home and abroad, all provide a solid foundation for the installation and use of these two.
In some promotional materials, the disc trailer axle and air suspension are directly referred to as a "golden combination", which is mainly due to the unique advantages of the two:
1, disc trailer axle
With the brake disc instead of the traditional sealed brake drum, its own weight has been greatly reduced, the load weight has been extended and increased to a certain extent;
The components of the braking system are simplified, the system structure is simpler, and the braking response speed is faster.
The exposed structure has high ventilation efficiency, faster heat dissipation, and is not prone to thermal attenuation. The open wheel end is not easy to appear water, and the water attenuation resistance is good.
In a word, it is light weight, fast heat dissipation, sensitive response, and strong ability to resist heat attenuation and water attenuation.
2. Air suspension
The use of compressed gas as an elastic medium has obvious advantages in weight, can obtain more loading space, but also can improve fuel economy, reduce comprehensive vehicle costs;
The vibration isolation effect of compressed air is better, which can greatly absorb the bumps and shocks from the road surface, ensure the constant height of the cargo car as much as possible, improve the driving comfort, protect the goods, and reduce the cargo damage;
The air suspension can realize the lifting of a single bridge or a whole vehicle, and the vehicle can reduce tire loss and save fuel when it returns empty. In addition, it can also make the vehicle better adapt to the cargo platform of different heights, and it is easier to load and unload goods.
The air suspension can also protect the chassis parts, the impact and turbulence are small, the fasteners on the chassis are loosened greatly, and the service life of the chassis parts can also be extended to a certain extent.
Simply put, it is light weight, excellent shock absorption, strong cargo protection ability, and can also achieve single bridge or multiple bridge upgrading, saving comprehensive vehicle costs.
When the disc trailer axle is used with the air suspension, the advantages of both sides can be combined to achieve the effect of "1+1 > 2", which is also the reason why many owners who transport green pass, flowers, electronic instruments, dangerous chemicals, fragile goods and other goods choose to use the disc trailer axle and air suspension.
Although the advantages are obvious, but this group of "golden combination" is not without shortcomings, the first is the use of conditions, the strength and rigidity of vehicle parts are often proportional, if the owner of the transport of the cargo weight is larger, I am afraid it is not suitable to use this combination, even if reluctantly used, the subsequent failure rate and maintenance frequency will add a lot of trouble to the owner.
Secondly, there is more content that owners need to pay attention to in use. For example, the brake response speed of the main suspension should be matched, it can not be cooled by water, it can not be overloaded, bad driving habits should be changed, and the self-test frequency needs to be improved under harsh working conditions, which is more complicated than the traditional steel plate bridge. In addition, if the road conditions the owner usually runs are relatively complex, it is also necessary to use the hydraulic retarder, ABS or EBS system on the basis of the axle and air suspension of the disc trailer to improve driving safety.
