Three-Axle Reverse-Mounted Axle Suspension Device

The utility model belongs to the technical field of vehicles, and more particularly relates to a three-axle reverse-mounted axle suspension device used for heavy-duty semi-trailers.

Background Technology

In the existing technology, semi-trailer suspensions generally adopt single-axle forward-mounted axle suspensions or two-axle forward-mounted axle suspensions. Vehicles using these suspension structures have limited load capacity and relatively high overall vehicle height.

Such configurations not only make loading and unloading of goods inconvenient, but also increase transportation costs, resulting in considerable economic losses for transportation enterprises.

Summary of the Utility Model

To solve the above problems, the utility model provides a three-axle reverse-mounted axle suspension device.

The device consists of:

Front bracket

Front connecting rod

Front axle

Vehicle frame

Front inner bracket

Middle connecting rod

Middle axle

Rear inner bracket

Rear connecting rod

Rear axle

Rear bracket

Leaf spring

Front equalizer

Rear equalizer

Structural characteristics:

A front bracket is arranged at the front end of the vehicle frame, and a rear bracket is arranged at the rear end of the vehicle frame.

A front inner bracket is arranged inside the front bracket, with a front equalizer positioned in its middle section.

A rear inner bracket is arranged inside the rear bracket, with a rear equalizer positioned in its middle section.

Leaf springs are installed between:

the front bracket and the front inner bracket,

the front inner bracket and the rear inner bracket,

the rear inner bracket and the rear bracket.

The front axle is mounted above the leaf spring between the front bracket and the front inner bracket.

The middle axle is mounted above the leaf spring between the front inner bracket and the rear inner bracket.

The rear axle is mounted above the leaf spring between the rear inner bracket and the rear bracket.

A front connecting rod connects the front bracket and the front axle.

A middle connecting rod connects the front inner bracket and the middle axle.

A rear connecting rod connects the rear inner bracket and the rear axle.

Beneficial Effects

The three-axle reverse-mounted axle suspension device provides several advantages:

Higher load capacity

Lower overall vehicle height

More convenient cargo loading and unloading

Reduced transportation costs

Structural Diagram Description

Front bracket

Front connecting rod

Front axle

Vehicle frame

Front inner bracket

Middle connecting rod

Middle axle

Rear inner bracket

Rear connecting rod

Rear axle

Rear bracket

Leaf spring

Front equalizer

Rear equalizer

Detailed Description of the Embodiment

With reference to the accompanying drawings, the utility model is further described in detail to enable the public to better understand its implementation.

The three-axle reverse-mounted axle suspension device comprises the following components: front bracket (1), front connecting rod (2), front axle (3), vehicle frame (4), front inner bracket (5), middle connecting rod (6), middle axle (7), rear inner bracket (8), rear connecting rod (9), rear axle (10), rear bracket (11), leaf spring (12), front equalizer (13), and rear equalizer (14).

The front bracket (1) is arranged at the front end of the vehicle frame (4), while the rear bracket (11) is arranged at the rear end of the vehicle frame (4). A front inner bracket (5) is located inside the front bracket (1), and a front equalizer (13) is installed in the middle section of the front inner bracket (5).

A rear inner bracket (8) is located inside the rear bracket (11), and a rear equalizer (14) is installed in the middle section of the rear inner bracket (8).

Leaf springs (12) are arranged between:

the front bracket (1) and the front inner bracket (5),

the front inner bracket (5) and the rear inner bracket (8),

the rear inner bracket (8) and the rear bracket (11).

The front axle (3) is mounted above the leaf spring (12) between the front bracket (1) and the front inner bracket (5).
The middle axle (7) is mounted above the leaf spring (12) between the front inner bracket (5) and the rear inner bracket (8).
The rear axle (10) is mounted above the leaf spring (12) between the rear inner bracket (8) and the rear bracket (11).

The front connecting rod (2) connects the front bracket (1) and the front axle (3); the middle connecting rod (6) connects the front inner bracket (5) and the middle axle (7); and the rear connecting rod (9) connects the rear inner bracket (8) and the rear axle (10).

The beneficial effects of the utility model are that the three-axle reverse-mounted axle suspension device provides high load capacity, reduces the overall height of the vehicle, facilitates cargo loading and unloading, and lowers transportation costs.