Composite Air Suspension for Semi-Trailer

Technical Field

This utility model belongs to the field of vehicle technology, and more particularly relates to a composite air suspension for use in semi-trailers.

Background Art

In the existing technology, semi-trailer suspensions typically adopt leaf spring suspensions or air suspensions.

During operation, leaf spring suspensions exhibit poor ride comfort, especially when traveling for long periods at low speeds on uneven road surfaces. Their performance is difficult to adjust, and improving these characteristics requires complex modification, limited available space, significant workload, and high cost.

On the other hand, conventional air suspension systems have relatively complex structures and high maintenance costs.

Summary of the Utility Model

To address the above problems, the present utility model provides a composite air suspension for semi-trailers.

The working principle of the composite air suspension is as follows: compressed air is generated by an air compressor and delivered into the air chambers of the spring and air shock absorber, thereby adjusting the vehicle height. A height sensor detects changes in the vehicle body height and outputs signals to control the compressor and exhaust valve, enabling the spring to compress or extend, thus achieving a shock-absorbing effect.

The composite air suspension for the semi-trailer comprises:

axle bracket

composite link rod

locking ring

composite spring plate

air shock absorber

axle

axle clamp

Characterized in that:
The axle is arranged beneath the middle portion of the composite spring plate; axle clamps are arranged on both the upper and lower sides of the axle, and the axle is connected to the composite spring plate through locking rings. One end of the composite spring plate is provided with the axle bracket, while the other end is provided with the air shock absorber. A composite link rod is arranged between the axle and the axle bracket.

Beneficial Effects

The utility model has the advantages of:

simple structure

convenient maintenance

low operating cost

The composite air suspension improves vehicle stability and enhances ride comfort, particularly when the semi-trailer operates for extended periods at low speeds on uneven road surfaces.

Description of Drawings

The accompanying drawing is a schematic structural diagram of the utility model, in which:

Axle bracket

Composite link rod

Locking ring

Composite spring plate

Air shock absorber

Axle

Axle clamp

Detailed Description

With reference to the accompanying drawing, the utility model is further described in detail to facilitate better understanding of its implementation.

The composite air suspension for a semi-trailer comprises an axle bracket (1), composite link rod (2), locking ring (3), composite spring plate (4), air shock absorber (5), axle (6), and axle clamp (7).

The axle (6) is arranged beneath the central portion of the composite spring plate (4). Axle clamps (7) are arranged on both the upper and lower sides of the axle (6), and the axle (6) is connected to the composite spring plate (4) via locking rings (3).

One end of the composite spring plate (4) is connected to the axle bracket (1), while the other end is connected to the air shock absorber (5). A composite link rod (2) is arranged between the axle (6) and the axle bracket (1).

The utility model features a simple structure, convenient maintenance, and low cost, while effectively improving vehicle stability and ride comfort, especially during prolonged operation on uneven roads at low speeds.