In recent years, disc axles and air suspension can be said to be "booming" in the freight market, whether it is the strong promotion of regulations and policies or the general trend of vehicle technology development at home and abroad, it has provided a solid foundation for the installation and use of the two.
In some promotional materials, disc axles and air suspension are directly referred to as the existence of "** combination", which is mainly derived from the unique advantages of both:
1. Disc axle
The brake disc replaces the traditional sealed brake drum, and its own weight has been greatly reduced, and the cargo weight has been expanded and improved to a certain extent
The components of the braking system have been simplified, the system structure is simpler, and the braking response speed is faster
The bare structure has high ventilation efficiency, faster heat dissipation, is not easy to have thermal attenuation, and the open wheel end is not easy to accumulate water, and has good water attenuation resistance.
In a word, it is light weight, fast heat dissipation, sensitive response, and strong resistance to thermal and water attenuation.
2. Air suspension
The use of compressed gas as an elastic medium has obvious advantages in terms of weight, which can get more loading space, and at the same time, it can also improve fuel economy and reduce the cost of comprehensive vehicles
The compressed air has a better seismic isolation effect, which can greatly absorb the bumps and impacts from the road surface, ensure the constant height of the cargo compartment as much as possible, improve the driving comfort, protect the goods, and reduce the damage of the goods
The air suspension can realize the lifting of a single bridge or the whole vehicle, which can reduce tire wear and save fuel when the vehicle is idling, and in addition, it can also make the vehicle better adapt to the cargo platform of different heights, and it is more convenient to load and unload goods
The air suspension can also protect the chassis parts, the impact and bumps are reduced, the fasteners on the chassis are loosened and the service life of the chassis parts can be extended to a certain extent.
To put it simply, it is light in weight, excellent in shock absorption, strong in cargo protection, and can also realize single or multi-bridge lifting, saving comprehensive vehicle costs.
When the disc axle is used with air suspension, the advantages of both parties can be combined to achieve the effect of "1+1 2", which is also the reason why many owners who transport green passes, flowers, electronic instruments, hazardous chemicals, fragile goods and other goods choose to use disc axles and air suspension.
Although the advantages are obvious, but this group of "** combination" is not without shortcomings, first of all, the use of working conditions, the strength and rigidity of vehicle accessories are often proportional, if the owner transports the weight of the goods, I am afraid it is not very suitable for the use of this pair, even if it is barely used, the subsequent failure rate and maintenance frequency will add a lot of trouble to the owner.
Secondly, there are many contents that need to be paid attention to by car owners in use. For example, the braking response speed of the main hanging should be matched, water can not be cooled, overload transportation can not be overloaded, bad driving Xi habits need to be changed, and the self-inspection frequency needs to be increased under poor working conditions, which is more cumbersome than the traditional steel plate bridge. In addition, if the car owner usually runs on the road conditions are relatively complex, it is also necessary to use the hydraulic retarder, ABS or EBS system on the basis of the disc axle and air suspension to improve driving safety.