Suspension Types And Structural Characteristics

The semi-trailer suspension is an important part of the semi-trailer. It bears the weight and vibration of the entire body and distributes it to the wheels and suspension system, making the vehicle stable and safe while driving. The type and structural characteristics of a semi-trailer's suspension are also important factors in the performance of a semi-trailer. Let's take a look at their related characteristics.

Common suspension types for semi-trailers include leaf spring suspension, air suspension and composite suspension.

1. Leaf spring suspension: Leaf spring suspension is a traditional suspension type with the advantages of simple structure, low cost and easy maintenance. As an elastic element, leaf springs can not only withstand vertical loads but also play a shock-absorbing role. However, the leaf spring suspension has a large dead weight, which has a certain impact on the vehicle's fuel economy and handling.

2. Air suspension: Air suspension is a unique type of suspension, which has the advantages of light weight, good shock absorption effect, and strong adjustability. As an elastic element, air springs adjust the vehicle's ground clearance and shock absorption performance by inflating and deflating. The air suspension is also equipped with a height sensor and control system, which can realize automatic adjustment and remote control.

3.Composite Suspension: Composite suspension is a combination of leaf spring suspension and air suspension, offering the advantages of both. The front part of the composite suspension uses leaf springs as elastic elements, and the rear part uses air springs as elastic elements, which can not only withstand vertical loads, but also achieve shock absorption and height adjustment.

1.Non-independent suspension: Since the cargo box of the semi-trailer is connected to the tractor, its suspension usually adopts non-independent suspension, that is, the wheels on both sides are connected through an axle. This structure is simple and low-cost, but it will affect the comfort and handling of the vehicle.

2.Adopt multi-axle design: Semi-trailers usually adopt multi-axle design to improve load-bearing capacity and stability. Common multi-axis designs include two-axis, three-axis, and four-axis.

3.Equipped with shock absorbers and stabilizer bars: In order to improve the shock absorption performance and stability of the vehicle, semi-trailers are usually equipped with shock absorbers and stabilizer bars. Shock absorbers can reduce vibrations and impacts when the vehicle is driving, and stabilizer bars can enhance the vehicle's ability to resist roll.

In short, semi-trailer suspension types and structural features have their own pros and cons. When purchasing a semi-trailer, you need to comprehensively consider factors such as the actual use of the vehicle, transportation requirements, and road conditions. Choosing the type of semi-trailer suspension that suits you can improve driving stability and safety and ensure the transportation quality and efficiency of the vehicle.