A, the characteristics of the side beam frame:

1, structural features:

It is convenient to install the cab, carriage, some special equipment and arrange other assemblies, which is conducive to refitting models and developing multi-brand cars.

2. Composition:

It consists of two longitudinal beams and several cross beams on both sides. The longitudinal beam and the cross beam are connected together by riveting or welding to form a solid rigid frame, which is usually called "array frame", which is the earliest frame type (it has been used since the first car in the world).

3, longitudinal beam:

The longitudinal beams are generally stamped from low-carbon alloy steel plates, with a trough-shaped cross section with strong bending resistance, and some adopt an I-shaped or box-shaped cross section. According to the requirements of different vehicle types and assembly structure arrangement, the longitudinal beam can be made into a curved shape in the horizontal or vertical plane. Its cross section can be equal or unequal.

4. Beam:

The cross beam is used to connect the left and right longitudinal beams to ensure the torsional rigidity of the frame and bear a certain longitudinal load, and can also support the main components such as the engine and radiator. Therefore, the number, structural form and layout of the longitudinal beam should meet the needs of the overall layout of the automobile and the requirements of the rigidity and strength of the frame.

Second, the structural characteristics of cross beam and longitudinal beam:

1, beam

A transverse beam is a transverse connecting column or wall, which plays a role in strengthening the stability of the transverse structure and bearing the transverse load. Cross beams are generally placed horizontally, which can enhance the stability of the structure. Beams have strong bearing capacity and are usually made of strong materials.

2. Longitudinal beam

The longitudinal beam is a vertical structural member, usually located between two columns or walls, which plays the role of supporting the beam and can also bear the corresponding longitudinal load. The longitudinal beam is usually perpendicular to the transverse beam and plays a load-bearing role in the building.

Advantages of side frame of commercial vehicle;

1, the side frame is convenient for installing the car body and arranging the assembly.

This makes it more flexible to meet the needs of different models in commercial vehicle manufacturing. Because the commercial vehicle field needs to meet a variety of transportation and operation needs, the side beam frame can be easily modified and modified as needed to meet the needs of different customers.

2. The side beam frame has good bearing capacity.

Because of the combination of cross beam and longitudinal beam, the side beam frame can bear a large load and distribute the load evenly to each cross beam, thus ensuring the safety and stability of the vehicle.

3. The side beam frame also has good rigidity and stability.

Because of the strong connection between the cross beam and the longitudinal beam, the overall stiffness of the frame is improved, which can ensure the stability and handling of the vehicle during driving.