Is the benefit of airbag suspension just comfortable?

Airbag suspension

There are two common types of airbag suspensions on trucks: Continental suspension and American suspension. The difference between the two is mainly in the structure of the airbag guide arm (bearing beam, suspension arm). The European style guide arm is generally made of cast and the American type is made of stamped and welded steel plates. Airbag suspension can also exist in the form of single-blanket 4 airbags and single-bike 2 airbags.

Careful card friends can find that the European truck will use a 4 airbag structure on a rear axle. This design can provide better shock absorption and load capacity for the vehicle. The single-bridge 4 airbag can transmit vibrations to the wheels. Maximum filtration.

Single-bridge 4 airbag suspension basically adopts such a structure: the axle and the airbag guide arm link are fixed in the center, and the guide arm has one airbag before and after, and one end of the airbag is linked with the frame, and the other end is linked with the guide arm. At present, most domestic trucks use this single-bridge 4 airbag suspension design.

Single-bridge 2 airbag suspension, as the name suggests, uses two airbags on a single axle, and the American truck axle will use a single-bridge 2 airbag structure. The current trailer is a common 2 airbag suspension structure, but according to the different structure of the guide arm, it can be divided into two kinds of American suspension and European suspension.

Single-bridge 2 airbags will adopt such a structure: the front end of the airbag guide arm is linked with the frame, the rear end is linked with the airbag, and the upper end of the airbag is linked with the frame. The single-blanket 2 airbag suspension is somewhat similar to a torsion beam suspension of a car. It can be understood as a non-independent airbag suspension. Theoretically speaking, there are no 4 airbag suspension effects, and 2 airbags are less expensive. .

Many people only know that the airbag suspension is shock-absorbing and the vehicle is more comfortable. Today, I would like to tell you that the advantages of airbag suspension are not only comfortable. Here we will talk about the hidden advantages of airbag suspension.

Advantage one: good damping effect

The reason why the airbag suspension can provide a good shock absorption effect for the vehicle is to use the compressibility of the air. The airbag suspension can achieve “soft connection” compared to the steel plate suspension, and the deformation of the airbag is faster and better than the steel plate. Airbag suspension can bring good shock absorption to the vehicle.

The airbag vehicle has a good shock absorption effect, and it is often used on vehicles that carry some goods such as transportation glass and precision instruments. In recent years, as domestic truck drivers have increased their comfort requirements for vehicles, many vehicles that transport ordinary goods have begun to use airbag suspensions, and airbag suspension brings more comfort to the vehicle owners.

Advantage two: more fuel-efficient

Say that the airbag suspension vehicle will be more fuel-efficient, it is estimated that many people will not understand why. Here's to talk about how airbag suspension can also save fuel.

For example, when the vehicle is walking on a bumpy road, should it slow down slowly? If the vehicle is airbag suspension, it can pass through the bumpy road section without deceleration or slight deceleration.

After the vehicle decelerates, it needs to accelerate again to the normal speed. This process needs to consume more fuel. The good damping capacity of the airbag suspension allows the vehicle to pass quickly, and the impact of the bumpy road section on the vehicle speed is minimized, so the airbag suspension vehicle is relatively It will save fuel.

Advantage three: protection chassis components

Thanks to the good damping effect of the airbag, the vibration of the vehicle from the road surface can be minimized, the damage to the chassis components due to the vibration can be minimized, and the loosening of the screws on the components of the chassis can also be avoided. For the simplest example, airbag suspension will greatly reduce the chance of the trailer opening. The reason why imported trucks are very durable is partly because they use airbag suspension.

Advantage four: convenient suspension of transport

The airbag-suspended tractor allows for quicker suspension and transportation. The ECAS system can be used to quickly adjust the height of the airbag to achieve the fastest connection and disengagement, which can effectively reduce the number of shaking the legs of the trailer. It is because of the convenience of drop-and-hook transport that more and more logistics companies are now using airbag suspension.

Advantage 5: convenient loading and unloading of goods at different heights

Nowadays, vehicles need to stop at docks for loading and unloading goods. There will be gaps in the height of platforms at different freight yards, which will cause inconvenience for forklifts or land bulls to enter and unload cargoes in vehicles. If the vehicle uses airbag suspension, the height of the airbag can be adjusted so that the height of the vehicle container is consistent with the height of the platform to facilitate loading and unloading of cargo.

Advantage six: Save tire protection road surface

Because the airbag suspension is a “soft link”, when the vehicle is driving on a road with bad road conditions, the tire fits better on the road surface, and it does not make the tires and the road surface as hard as the leaf spring to accelerate the wear of the tire. Airbag suspension can therefore reduce tire wear. At the same time, thanks to the suspension of the "soft link" of the airbag, the tire will have much less damage to the road surface, and it will also have a protective effect on the road surface.

Since the air suspension is so good, why is it not popular in the country? The reason why it is difficult to popularize is largely due to price. Take domestic 6X4 tractors as an example. If you use 8 airbag suspensions, you need to increase the cost of car purchase by more than 20,000, so domestic Many owners will not choose air suspension for price reasons.

In addition to price factors, the durability of airbags is also a concern of the majority of owners, can not be used to live, damaged bad maintenance, high maintenance costs later became their biggest concern, compared to airbag suspension, the current suspension stability of the leaf spring Better, so airbag suspension in the country did not get popular.

In addition to price and durability, the large load capacity of domestic vehicles is also one of the reasons why airbags are difficult to spread. With the development of the state super-rule, the maximum limit value of the current total cargo weight is 49 tons. Airbag suspension has been able to meet the needs of use.

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