CN204821731U - Wheel casing stiffening beam before automobile - Google Patents

Abstract

The utility model relates to an automobile front wheel house reinforcement beam, which is characterized in that: the reinforcement beam main body (11) of the automobile front wheel house reinforcement beam (1) is in the shape of an elephant trunk, and the front section bends downward and is assembled with the front longitudinal beam ( 2) Connection, the rear section is straight and connected with the side wall outer panel (5); the cross-sectional shape and size of the curved part of the front section and the straight section of the rear section of the reinforcement beam main body (11) are consistent. The upper part of the reinforcing beam main body (11) is provided with a groove (12), and the groove (12) is located at the front of the straight part of the rear section of the reinforcing beam main body (11) and is 100 mm away from the curved part of the front section. A longitudinal guide rib (13) is also provided on the side of the straight part of the rear section of the reinforcing beam main body (11). The reinforcing beam main body (11) is also provided with a positioning hole (14) to play the role of welding positioning. The utility model improves the energy absorption rate of the front wheel house reinforcing beam and the bearing capacity of the cross section of the front wheel house reinforcing beam, thereby greatly improving the safety of the passenger compartment.

Description

Reinforcing beam for front wheel cover of automobile

technical field

The utility model belongs to the technical field of automobile body design and manufacture, in particular to an automobile front wheel house reinforcing beam.

Background technique

With the rapid development of the automobile industry, domestic and foreign laws and regulations, new car evaluation standards and consumers' requirements for automobile safety are also getting higher and higher. Collision performance is an important indicator of automobile safety factors, so the structure related to collision has become one of the important parts worth studying in the design of body structure. For the collision structure, we focus on rigid and flexible parts in the design. The rigid part is in the structural design, which must have sufficient strength to ensure the minimum deformation of the passenger compartment; the soft part is in the structural design, which has a certain deformation The energy-absorbing space reduces the impact energy directly transmitted to the passenger compartment.

The front wheelhouse reinforcement beam (SHOTGUN), as a component connecting the longitudinal beam and the passenger compartment, is one of the important force-transmitting and load-bearing components in collisions (especially frontal and offset collisions). The structural design of the front wheelhouse reinforcement beam, It largely affects the deformation of the A-pillar in the collision, and is directly related to the deformation of the member compartment. At present, the common front wheel house reinforcement beam design is mainly in the shape of a trumpet with a small front section and a large rear section. Its energy absorption ratio is about 2~2.5%, and the section force is about 30KN. Large deformation will adversely affect the collision effect of the passenger compartment.

Contents of the invention

In order to solve the above-mentioned existing technical problems, the utility model designs an automobile front wheel house reinforcing beam.

In order to solve the above-mentioned technical problems, the utility model adopts the following scheme:

An automobile front wheel house reinforcement beam, characterized in that: the reinforcement beam main body (11) of the automobile front wheel house reinforcement beam (1) is in the shape of an elephant trunk, and the front section is bent downward and connected with the front longitudinal beam assembly (2), The rear section is straight and connected with the side wall outer panel (5); the cross-sectional shape and size of the front curved part and the rear straight part of the reinforcing beam main body (11) are consistent.

Further, the upper part of the reinforcing beam main body (11) is provided with a groove (12), and the groove (12) is located at the front of the straight part of the rear section of the reinforcing beam main body (11) and is 100mm away from the curved part of the front section.

Further, longitudinal guide ribs (13) are also provided on the side of the straight part of the rear section of the reinforcing beam main body (11).

Further, positioning holes (14) are also provided on the reinforcing beam main body (11) to play the role of welding positioning.

Further, it also includes the front wheel cover (3) and the front windshield lower beam (4), the front wheel cover (3) and the front longitudinal beam assembly (2) are welded into the front longitudinal beam wheel cover assembly, and then the front windshield lower beam assembly (4) Welded to form the front cabin assembly, and then welded with the side panel (5) to form the body frame assembly; the front wheel house reinforcement beam (1) is connected to the body frame assembly, and the front wheel house reinforcement beam (1) is reinforced The curved part of the front section of the beam main body (11) is welded to the front longitudinal beam assembly (2) and the front wheel house (3), and the straight part of the rear section of the reinforcing beam main body (11) is connected to the front windshield lower beam (4), side The surrounding outer plate (5) is welded and connected.

The automobile front wheel house reinforcing beam has the following beneficial effects:

(1) In this utility model, the front and rear sections of the reinforcing beam main body of the front wheel house reinforcing beam of the automobile are basically consistent, in the shape of an elephant trunk, and the front section is bent downward. The effect of deformation and energy absorption, the rear section is straight, and the rear section that is straight and consistent in cross-section can bear greater cross-sectional force.

(2) In this utility model, a groove is provided on the upper part of the front wheel house reinforcement beam, and the distance between the groove and the curved section is 100mm at the front of the straight section, which has the effect of secondary deformation and energy absorption in the collision. The rear part of the reinforced beam is provided with guide ribs, which can be lifted to bear the section force and induce the transmission of force.

(3) The utility model improves the trumpet-shaped structure of the common front wheelhouse reinforcement beam into an elephant trunk-shaped structure, which increases the cross-sectional bearing capacity, optimizes the common single-stage deformation mode into a two-stage deformation mode, and increases the reinforcement of the front wheelhouse. The collision energy that the beam can absorb, that is, the energy absorption rate of the front wheel house reinforcement beam is improved and the section bearing capacity of the front wheel house reinforcement beam is improved, which greatly improves the safety of the passenger compartment.

Description of drawings

Fig. 1: The structure diagram of the reinforcement beam of the front wheel house of the utility model automobile;

Figure 2: Structural schematic diagram (exploded view) of the utility model automobile front wheel house reinforcing beam in use state.

Explanation of reference signs:

1—front wheel house reinforcement beam; 11—reinforcement beam main body; 12—groove; 13—guiding rib; 14—positioning hole; 2—front longitudinal beam assembly; 3—front wheel house; 4—front windshield lower beam; 5—side wall outer panel.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described further:

Fig. 1 to Fig. 2 have shown a kind of automobile front wheel house reinforcing beam, the front and rear sections of the reinforcing beam main body 11 of the automobile front wheel house reinforcing beam 1 are basically consistent, in the shape of an elephant trunk, the front section is bent downward, and is aligned with the front longitudinal beam The assembly 2 is connected, and the rear section is straight and connected with the side wall outer panel 5 . The curved front section is conducive to the smooth transmission of collision force and can play a role in deformation and energy absorption, while the straight and consistent section of the rear section can withstand greater section force. The main body 11 of the automobile reinforcement beam is designed with a groove 12 at the front part of the straight part of the rear section, about 100mm away from the curved part of the front section. The purpose of more energy. A longitudinal guide rib 13 is also provided on the side of the rear straight part of the reinforcing beam main body 11 to enhance the bearing capacity of the section force and induce the transmission of force. The front wheel house reinforcing beam 1 is also provided with a positioning hole 14 on the reinforcing beam main body 11 to play the role of welding positioning.

Fig. 2 is a schematic diagram of the use state of the utility model, which includes a front wheel house reinforcing beam 1, a front longitudinal beam assembly 2, a front wheel house 3, a front windshield lower beam 4 and a side wall outer panel 5 in actual use. The front wheel house 3 is welded with the front longitudinal beam assembly 2 to form the front longitudinal beam wheel housing assembly, and then welded with the front windshield lower beam 4 to form the front cabin assembly, and then welded with the side wall outer panel 5 to form the body frame assembly. The wheel house reinforcement beam 1 is connected with the body frame assembly, the front curved part of the front wheel house reinforcement beam 1 reinforcement beam main body 11 is connected with the front longitudinal beam assembly 2 and the front wheel house 3 by welding, and the rear straight part is connected with the front windshield The lower beam 4 and the side wall outer panel 5 are connected by welding.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the realization of the utility model is not limited by the above-mentioned method, as long as various improvements of the method concept and technical solutions of the utility model are adopted, or the utility model is not improved. Directly applying the conception and technical solutions of the utility model to other occasions is within the protection scope of the utility model.

Claims (6)

1. An automobile front wheel house reinforcement beam, characterized in that: the reinforcement beam main body (11) of the automobile front wheel house reinforcement beam (1) is in the shape of an elephant trunk, and the front section bends downward and is assembled with the front longitudinal beam (2) connection, the rear section is straight and connected with the side wall outer panel (5); the cross-sectional shape and size of the front curved part and the rear straight part of the reinforcing beam main body (11) are consistent. 2. The automobile front wheel house reinforcement beam according to claim 1, characterized in that: the upper part of the reinforcement beam body (11) is provided with a groove (12), and the groove (12) is located at the rear section of the reinforcement beam body (11) The front part of the straight part and the distance from the curved part of the front part is 100mm. 3. The automobile front wheel house reinforcement beam according to claim 1 or 2, characterized in that: longitudinal guide ribs (13) are also provided on the side of the rear straight part of the reinforcement beam main body (11). 4. The automobile front wheel house reinforcement beam according to claim 1 or 2, characterized in that: the main body (11) of the reinforcement beam is also provided with a positioning hole (14) to play the role of welding positioning. 5. The automobile front wheel house reinforcement beam according to claim 3, characterized in that: the main body (11) of the reinforcement beam is also provided with a positioning hole (14) to play the role of welding positioning. 6. The automobile front wheel house reinforcing beam according to claim 1, 2 or 5, characterized in that it also includes the front wheel house (3) and the front windshield lower beam (4), the front wheel house (3) and the front longitudinal The beam assembly (2) is welded into the front longitudinal beam wheel house assembly, then welded with the front windshield lower beam (4) to form the front cabin assembly, and then welded with the side panel (5) to form the body frame assembly; the front wheel The hood reinforcement beam (1) is connected to the body frame assembly, and the front curved part of the front wheel house reinforcement beam (1) reinforcement beam main body (11) is welded to the front longitudinal beam assembly (2) and the front wheel house (3). The straight part of the rear section of the reinforcement beam main body (11) is welded and connected with the front windshield lower beam (4) and the side wall outer plate (5).