Integrated Aluminum Alloy Front Bracket — Leaf Spring Front Hanger for Semi-Trailer

Technical Field

The utility model relates to the technical field of automotive components, and more particularly to an integrated aluminum alloy front hanger for a vehicle leaf spring.

Background Art

Influenced by national policies and transportation cost pressures, market demand for lightweight commercial vehicles has increased rapidly. The energy-saving advantages of lightweight vehicles are increasingly recognized and have become an important factor in purchasing decisions.

Automotive lightweighting refers to reducing the curb weight of a vehicle as much as possible while ensuring its strength and safety performance, thereby improving power performance, reducing fuel consumption, and lowering emissions.

In existing heavy-duty trucks, leaf spring hangers are designed with high structural strength requirements, resulting in large mass and bulky structures. This increases the vehicle's overall weight, wastes high-quality steel materials, and leads to higher costs. Additionally, thicker hanger structures reduce the internal space of the frame-type configuration, making assembly and installation less convenient.

Summary of the Invention

To overcome the deficiencies of the prior art, the utility model provides an integrated aluminum alloy leaf spring front hanger featuring light weight, high strength, convenient assembly and installation, and the capability for height adjustment.

To achieve the above objective, the utility model provides an integrated aluminum alloy leaf spring front hanger comprising:

Bracket housing

Wear plate

Wear-resistant vertical wall

Bushing

Curved support

Bolt holes

Heightening housing

Reinforcing ribs

Connecting plates

Support bars

Key structural features include:

The bracket housing is of an integrated structure, with a vertical front face and a vertical rear face forming two support surfaces. A cavity between these faces contains a curved support, wear plate, and wear-resistant vertical wall.

The curved support is integrally formed with both vertical faces and connects them. The wear plate and wear-resistant wall are integrally formed and bolted to the bracket housing.

The upper and lower ends of the bracket housing are provided with horizontal connecting surfaces, which are integrally connected to the inner surfaces of the vertical faces.

A support bar is arranged on the outer upper surface of the bracket housing.

Two symmetrical connecting plates are provided at the lower end, each with through-holes containing bushings.

The heightening housing matches the internal dimensions of the bracket housing and is also an integrated structure. Its upper portion is a rectangular cavity with vertical reinforcing ribs, while its lower portion is a downward-opening U-shaped slot. The two sides of the U-shaped slot form connecting plates welded to the bracket housing.

Beneficial Effects

Made of high-strength aluminum alloy, significantly reducing weight and improving fuel efficiency

Integrated extrusion forming enables mass production and lowers manufacturing costs

Modular combination of bracket housing and heightening housing allows adaptability to different vehicle models

Description of Drawings

Fig. 1: Longitudinal half-sectional view

Fig. 2: Transverse half-sectional view

Fig. 3: Structure of the heightening housing

Fig. 4: Assembly structure of bracket housing and heightening housing

Reference numerals:

Bracket housing

Wear plate

Wear-resistant vertical wall

Bushing

Curved support

Bolt hole

Heightening housing

Reinforcing rib

Connecting plate

Support bar

Detailed Description

To further clarify the objectives, technical solutions, and advantages of the utility model, the following detailed description is provided in conjunction with the accompanying drawings.

Positional terms are based on the orientations shown in the drawings and are used solely for descriptive convenience; they do not limit the scope of protection.

As shown in Figures 1–4, the integrated aluminum alloy leaf spring front hanger includes the bracket housing (1), wear plate (2), wear-resistant vertical wall (3), bushing (4), curved support (5), bolt holes (6), heightening housing (7), reinforcing ribs (8), connecting plates (9), and support bar (10).

The bracket housing (1) is an integrated structure with vertical front and rear faces forming support surfaces. The internal cavity houses the curved support (5), wear plate (2), and wear-resistant wall (3). The curved support (5) is integrally formed with both vertical faces, while the wear plate (2) and wear-resistant wall (3) are integrally formed and bolted to the housing.

Horizontal connecting surfaces are provided at both the upper and lower ends of the bracket housing, enhancing structural strength.

A support bar (10), made of elongated aluminum alloy, is welded to the upper outer surface of the bracket housing.

Two symmetrical connecting plates (9) are arranged at the lower end, each provided with a through-hole containing a bushing (4).

The heightening housing (7) matches the bracket housing in size and is also integrally formed. Its upper portion is a rectangular cavity with vertical reinforcing ribs (8), while the lower portion is a U-shaped slot opening downward. The side walls of the U-shaped slot serve as connecting plates (9) welded to the bracket housing.

When assembled, the U-shaped slot of the heightening housing (7) fits over the upper part of the bracket housing (1). The lower ends of the connecting plates (9) contact the support bar (10), which provides structural support.

Both the bracket housing (1) and heightening housing (7) are formed through one-step extrusion, enabling efficient mass production and cost reduction. Combined with high-strength aluminum alloy material, the design reduces vehicle weight, improves fuel efficiency, and lowers operational costs. The modular configuration also broadens dimensional adaptability for different vehicle models.