How many common air springs are there?

With the prevalence of youthful quantification trends in recent years, air suspensions appear more and more frequently on freight vehicles, especially the promotion and blessing of relevant regulations, making air suspensions a major selling point for many car companies. At the same time, compared with traditional leaf springs, air suspension does have incomparable advantages in many aspects. Although there are some flaws in strength and durability, the limelight is still undiminished.

The air suspension is mainly composed of elastic elements, shock absorbers, and guide mechanisms. This is similar to the traditional suspension system. The biggest difference lies in the upgrade of its elastic elements. Air springs are used as elastic elements, and electronic control is added at the same time. Function and air pump and other components, so that the suspension has the ability to actively adjust.

The advantages of air suspension mainly lie in the following points:

1. Excellent shock absorption effect

The air suspension uses compressible air as the elastic medium, and the shock isolation effect is better than that of the leaf spring, which can greatly absorb the bumps and impacts from the road surface, which can not only improve the driving comfort, but also enhance the protection of the cargo, especially When transporting hazardous chemicals or fragile and fragile high-value-added goods, the height of the cargo compartment can be kept as constant as possible to reduce or avoid cargo damage caused by turbulence.

2. Lighter weight

Lightweight is the most obvious advantage of the air suspension, especially compared with the traditional leaf spring suspension, it is more light and buoyant. In the current situation where the traffic control department strictly controls the vehicle load, lighter weight means that it can load more In addition, it can also improve fuel economy and reduce the overall cost of using vehicles.

3. The height can be adjusted freely

The air suspension can realize the lifting of a single bridge or a whole vehicle. When the vehicle returns empty, the single bridge can be lifted to further reduce tire loss and save fuel. On the other hand, freight vehicles often need to park in front of the freight platform to load and unload goods. The height of the cargo platform may not be uniform, and the air suspension can adjust the height of the vehicle body to match different cargo platforms, making it easier to load and unload cargo.

4. Reduce tire loss

The connection between the air suspension and the wheels and the frame is a kind of soft connection. When the vehicle encounters poor road conditions, the fit between the tires and the road surface is softer, not as hard as the leaf spring suspension, so it is more conducive to reducing tire pressure. Wear and save the cost of tire replacement. Conversely speaking, while the air suspension protects the tires, it can also protect the road surface to a certain extent.

5. Protect chassis components

This is also due to the excellent shock absorption effect of the air suspension, the impact and bumps from the road are reduced, the looseness of the fasteners on the vehicle chassis is also greatly reduced, and the loss of chassis components can also be reduced to a certain extent. be improved to prolong its service life.

How should the air suspension be maintained during use?

1. The working air pressure should be strictly controlled

Under normal circumstances, the design pressure of the airbag is about one-third of the burst pressure. It is worth noting that no matter whether the working air pressure is too high or too low, the airbag will be damaged in advance, so it needs to be controlled within a strict range during use.

2. Do not exceed the travel itinerary

In order to ensure the service life of the air suspension, remember not to exceed the use stroke clearly marked in its performance parameter table during use.

3. Pay attention to the use environment

Try to use the air suspension in a dry, cool and ventilated environment, avoid exposure to the sun and contact with acids, alkalis, oils, organic lubricants, etc., do a good job of daily cleaning to reduce damage to the airbag surface. When facing complex road conditions, try to slow down as much as possible to avoid flying sand and gravel from damaging the airbag or damaging the precision components inside the suspension.

4. Pay attention to parking vehicles

When parking a vehicle with air suspension installed, make sure that the vehicle stops before pulling up the handbrake to prevent the airbag from being able to rebound. In addition, try to park the car on a stable road, and do not park the car on the curb or in uneven places, otherwise the force on the airbag will be uneven, and damage will easily occur in the long run.

5. Daily inspection and regular maintenance

It is recommended to regularly check whether there are faults and hidden dangers in the air pump, distribution valve, and pipeline interface. If there is no hidden danger but a fault code prompt is displayed, a dedicated computer should be used to conduct a comprehensive investigation, and the air bag should also be checked for abnormalities. If found, contact a professional maintenance point. Repair or replace.

The air suspension is easy to use, but it must also be used according to the working conditions. If the owner usually pulls a heavy load and often runs on bumpy mountain roads or downroads, then don’t follow the wind to choose the air suspension. Even if it is barely used, follow-up The damage and maintenance frequency are also indispensable, and it is not beneficial to safety. The traditional leaf spring suspension is the first choice:

For green goods, flowers, glass ceramics, electronic instruments, hazardous chemicals, or standard-load transportation on high-speed and national roads, it is more appropriate to choose air suspension, but you must choose a regular brand, and don't be greedy for petty profits. , Only when the quality of the air suspension passes the test can it bring more safety and benefits.