Four common types of trailer suspension are briefly introduced

The suspension of semi-trailer is an important part that connects the travelling device of semi-trailer chassis with the frame. The vehicle's support force, braking force, driving force, etc., are transmitted through the suspension system, and can also reduce the impact of the bad road on the vehicle - shock absorption, to ensure the stability of the vehicle, its importance is self-evident. The following is a brief introduction to the four common suspensions on the lower semi-trailer: steel plate suspension, air suspension, single point suspension, rigid suspension.

● Steel plate suspension

Steel plate suspension is our common leaf spring, the full name is a series of steel plate spring balance suspension. It is mainly composed of leaf spring, suspension support (commonly known as lifting lug), connecting rod, U-bolt and other parts. The biggest advantage of this trailer suspension is that it is cheap, reliable and easy to maintain. At present, more than 80% of ordinary semi-trailers in China use steel plate spring balanced suspension.

● Air suspension

Air suspension believe that everyone is not unfamiliar, the most obvious feature is its air bag type air spring, because of its different types of structure is also very different, here will not be detailed. The advantages of air suspension are obvious: light weight and good stability. The disadvantage is that the price is too high, the current domestic trailer with air suspension is precision instrument transportation, tobacco transportation, dangerous transportation and other high-end fields.

● Rigid suspension

The most used rigid suspension is the axis hanging, with two lines and four Bridges, three lines and six Bridges, etc., mainly suitable for low-speed axis low plate semi-trailer and concave beam trailer for carrying goods. Its damping effect is poor at high speed.

● Single point suspension

Single point suspension is to reduce the common leaf spring before and after support into a single support connected to the body, ordinary semi-trailer with less, compared with ordinary leaf spring suspension, single point suspension bearing capacity is larger, mainly used in heavy vehicles.

Of course, the suspension types of semi-trailer can be more than just these, this article is just a simple introduction to several common semi-trailer suspension, so that everyone has an understanding. If there are professionals, you can tell the majority of netizens in detail, and you are welcome to correct what is wrong.