Integrated aluminum alloy gooseneck cross beam and assembly

Abstract

The utility model relates to an integrated aluminum alloy gooseneck beam and assembly, which belongs to the technical field of automobiles, and comprises a polygonal large cavity structure formed by sequentially connecting a first characteristic surface, a second characteristic surface, a fourth characteristic surface, a fifth characteristic surface and a third characteristic surface, the fifth characteristic surface is positioned at the top of the large cavity, and the first characteristic surface is positioned at the bottom of the large cavity; a first reinforcing strip and a second reinforcing strip are arranged between the fourth feature face and the third feature face. The eighth feature face extends towards the outside of the large cavity in the direction of the third feature face to the ninth feature face, and the ninth feature face and the eighth feature face are perpendicular to each other, so that the first feature face, the seventh feature face, the eighth feature face and the ninth feature face form an I-shaped structure. The integrated aluminum alloy gooseneck cross beam is in lap joint with the front bottom plate assembly, and the rear bottom plate assembly and the longitudinal beam are connected to form an assembly. The aluminum alloy material is adopted, the weight is light, and the service life is long; by integrating the multi-cavity structure and the I-shaped structure, the overall strength and rigidity are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and in particular relates to an integrated aluminum alloy gooseneck beam and a component, which are mainly used in special-purpose vehicles. Background Art

[0002] The gooseneck beam mainly connects the front floor assembly and the rear floor, and its structure is required to be easy to assemble and have a strong load-bearing capacity. At present, most gooseneck beams are made of steel, which has the disadvantages of heavy weight, poor corrosion resistance and poor overall load-bearing capacity. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an integrated aluminum alloy gooseneck beam and components, which are made of aluminum alloy material, are corrosion-resistant and have a long service life; at the same time, an aluminum alloy multi-cavity structure and an "I" beam integrated design are adopted to improve its load-bearing level.

[0004] An integrated aluminum alloy gooseneck beam comprises a polygonal large cavity structure formed by sequentially connecting characteristic surface 1, characteristic surface 2, characteristic surface 4, characteristic surface 5 and characteristic surface 3, wherein characteristic surface 5 is located at the top of the large cavity and characteristic surface 1 is located at the bottom of the large cavity; reinforcing strips 1 and 2 are arranged between characteristic surface 4 and characteristic surface 3;

[0005] Feature surface eight extends along the direction of feature surface three to feature surface nine outside the large cavity, and feature surface nine and feature surface eight are arranged perpendicular to each other, so that feature surface one, feature surface seven, feature surface eight and feature surface nine form an "I" shaped structure.

[0006] The characteristic surface 2 is a slope structure, and the included angles with the characteristic surface 1 and the characteristic surface 4 are obtuse angles, so that the transition between the characteristic surface 1 and the characteristic surface 4 is smooth.

[0007] The characteristic surface four is located outside the large cavity, and a characteristic surface six is ​​provided. The characteristic surface six is ​​perpendicular to the characteristic surface four and extends to the outside of the large cavity for overlapping with the front floor assembly of the automobile.

[0008] The distance between the upper surface of the characteristic surface 6 and the top surface of the characteristic surface 5 at the top is the thickness of the front bottom plate assembly.

[0009] The characteristic surface seven is perpendicular to the characteristic surface three and extends toward the outside of the large cavity along the direction of the characteristic surface one, and is overlapped with the rear floor assembly of the automobile.

[0010] The characteristic surface 8 is provided with a plurality of weight-reducing holes.

[0011] All feature surfaces are formed in one step through the extrusion process.

[0012] It comprises the above-mentioned integrated aluminum alloy gooseneck beam, the front end of the integrated aluminum alloy gooseneck beam is overlapped with the front floor assembly, the rear end of the integrated aluminum alloy gooseneck beam is overlapped with the rear floor assembly, and the bottom "I"-shaped structure of the integrated aluminum alloy gooseneck beam is connected to the longitudinal beam.

[0013] The lower part of the front floor assembly is overlapped on the characteristic surface six of the integrated aluminum alloy gooseneck beam, and the characteristic surface five is welded to the upper part of the front floor assembly; the rear floor assembly is overlapped on the characteristic surface seven of the aluminum alloy gooseneck beam, and the characteristic surface three is welded to the upper part of the rear floor assembly.

[0014] The characteristic surface nine on the aluminum alloy gooseneck cross beam is connected with the longitudinal beam through a rubber pad.

[0015] The utility model has the following beneficial effects: the utility model adopts aluminum alloy material, which is light in weight, corrosion-resistant and has a long service life. At the same time, by integrating the multi-cavity structure and the "I"-shaped structure into a large-section profile with strong bearing capacity, and integrating the overlap structure of the front floor assembly and the rear floor assembly, the overall strength and rigidity are improved. At the same time, all characteristic surfaces are formed at one time through an extrusion process, with high production efficiency, stable quality and reliable assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the integrated aluminum alloy gooseneck beam provided by the utility model;

[0017] Figure 2 A schematic cross-sectional view of the integrated aluminum alloy gooseneck beam provided by the utility model;

[0018] Figure 3 A schematic diagram of an integrated aluminum alloy gooseneck beam assembly provided by the utility model;

[0019] Figure 4 for Figure 3 A magnified view of part A in FIG.

[0020] Figure 5 It is a schematic diagram of the working state of the utility model;

[0021] Figure 6 The stress cloud diagram of bending condition is the result of finite element analysis;

[0022] Figure 7 The stress cloud diagram of the braking condition is the result of finite element analysis;

[0023] Figure 8 The stress cloud diagram of the turning condition is the result of finite element analysis;

[0024] Fig. 9 The stress cloud diagram of torsion condition is the result of finite element analysis;

[0025] in,

[0026] 1-Front floor assembly, 2-Integrated aluminum alloy gooseneck beam, 201-Feature surface one, 202-Feature surface two, 203-Feature surface three, 204-Feature surface four, 205-Feature surface five, 206-Feature surface six, 207-Cavity one, 208-Reinforcement strip one, 209-Cavity two, 210-Reinforcement strip two, 211-Cavity three, 212-Feature surface seven, 213-Feature surface eight, 214-Feature surface nine, 215-Weight reduction hole, 3-Rear floor assembly, 4-Longitudinal beam, 5-Rubber pad. DETAILED DESCRIPTION

[0027] In order to better explain the present invention and facilitate understanding, the technical scheme and effects of the present invention are described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0028] Example 1

[0029] like Figure 1-2 As shown, an integrated aluminum alloy gooseneck beam 2 includes a polygonal large cavity structure formed by connecting a characteristic surface 1 201, a characteristic surface 202, a characteristic surface 4 204, a characteristic surface 5 205, and a characteristic surface 3 203 in sequence, wherein the characteristic surface 5 205 is located at the top of the large cavity, and the characteristic surface 1 201 is located at the bottom of the large cavity. Among them, the characteristic surface 202 is a slope structure, and the angle between the characteristic surface 1 201 and the characteristic surface 4 204 is an obtuse angle, so that the transition between the characteristic surface 1 201 and the characteristic surface 4 204 is smooth, reducing stress concentration. A reinforcing strip 1 208 and a reinforcing strip 210 are arranged between the characteristic surface 4 204 and the characteristic surface 3 203, and the large cavity structure is divided into a closed cavity structure with three cavities, namely, cavity 1 207, cavity 209, and cavity 3 211, by reinforcing strip 1 208 and reinforcing strip 210.

[0030] The characteristic surface 204 is located outside the large cavity and is provided with a characteristic surface 206. The characteristic surface 206 is perpendicular to the characteristic surface 204 and extends to the outside of the large cavity, and is used to overlap with the front floor assembly 1 of the automobile. The distance between the upper surface of the characteristic surface 206 and the top surface of the characteristic surface 5 205 at the top is the thickness of the front floor assembly 1. The characteristic surface 212 is perpendicular to the characteristic surface 3 203 and extends to the outside of the large cavity along the direction of the characteristic surface 1 201, and overlaps with the rear floor assembly 3 of the automobile.

[0031] The characteristic surface eight 213 extends to the characteristic surface nine 214 outside the large cavity along the direction of the characteristic surface three 203, and the characteristic surface nine 214 and the characteristic surface eight 213 are arranged perpendicular to each other, so that the characteristic surface one 201, the characteristic surface seven 212, the characteristic surface eight 213, and the characteristic surface nine 214 form an "I"-shaped structure. Among them, the characteristic surface eight 213 can open a number of weight-reducing holes 215 according to the load-bearing size requirements of the vehicle, so as to achieve the goal of lightweighting under the premise of ensuring the load-bearing capacity. The gooseneck crossbeam is made of aluminum alloy.

[0032] By integrating the multi-cavity structure and the "I"-shaped structure into a large-section profile with strong load-bearing capacity, and integrating the overlapping structure of the front bottom plate and the rear bottom plate into it, all characteristic surfaces are formed in one step through the extrusion process, with high production efficiency, stable quality and reliable assembly.

[0033] Example 2

[0034] like Figure 3-4 As shown, an integrated aluminum alloy gooseneck beam assembly includes the integrated aluminum alloy gooseneck beam 2 provided in Example 1, the front end of the integrated aluminum alloy gooseneck beam 2 overlaps the front floor assembly 1, the rear end of the integrated aluminum alloy gooseneck beam 2 overlaps the rear floor assembly 3, and the bottom "I"-shaped structure of the integrated aluminum alloy gooseneck beam 2 is connected to the longitudinal beam 4.

[0035] The lower part of the front floor assembly 1 is overlapped on the characteristic surface 6 206 of the integrated aluminum alloy gooseneck cross beam 2, and the characteristic surface 5 205 is welded to the upper part of the front floor assembly. The rear floor assembly 3 is overlapped on the characteristic surface 7 212 of the aluminum alloy gooseneck cross beam, and the characteristic surface 3 203 is welded to the upper part of the rear floor assembly 3. The characteristic surface 9 214 on the aluminum alloy gooseneck cross beam is connected to the longitudinal beam 4 through the rubber pad 5. Figure 5 Shown is a schematic diagram of the working state of the utility model.

[0036] According to the actual use of the vehicle, finite element analysis of four typical working conditions, bending, braking, turning and twisting, is carried out. The analysis results are as follows: Figure 6-9 As shown, the results show that the integrated aluminum alloy gooseneck beam 2 meets the strength and reliability requirements.

Claims

1. An integrated aluminum alloy gooseneck beam, characterized in that: A polygonal large cavity structure is formed by sequentially connecting characteristic surface 1, characteristic surface 2, characteristic surface 4, characteristic surface 5 and characteristic surface 3, wherein characteristic surface 5 is located at the top of the large cavity and characteristic surface 1 is located at the bottom of the large cavity; reinforcing strips 1 and 2 are arranged between characteristic surface 4 and characteristic surface 3; Feature surface eight extends along the direction of feature surface three to feature surface nine outside the large cavity, and feature surface nine and feature surface eight are arranged perpendicular to each other, so that feature surface one, feature surface seven, feature surface eight and feature surface nine form an "I" shaped structure.

2. The integrated aluminum alloy gooseneck beam according to claim 1, characterized in that: The characteristic surface 2 is a slope structure, and the included angles with the characteristic surface 1 and the characteristic surface 4 are obtuse angles, so that the transition between the characteristic surface 1 and the characteristic surface 4 is smooth.

3. The integrated aluminum alloy gooseneck beam according to claim 1, characterized in that: The characteristic surface four is located outside the large cavity, and a characteristic surface six is ​​provided. The characteristic surface six is ​​perpendicular to the characteristic surface four and extends to the outside of the large cavity for overlapping with the front floor assembly of the automobile.

4. The integrated aluminum alloy gooseneck beam according to claim 3, characterized in that: The distance between the upper surface of the characteristic surface 6 and the top surface of the characteristic surface 5 at the top is the thickness of the front bottom plate assembly.

5. The integrated aluminum alloy gooseneck beam according to claim 1, characterized in that: The characteristic surface seven is perpendicular to the characteristic surface three and extends toward the outside of the large cavity along the direction of the characteristic surface one, and is overlapped with the rear floor assembly of the automobile.

6. The integrated aluminum alloy gooseneck beam according to claim 1, characterized in that: The characteristic surface 8 is provided with a plurality of weight-reducing holes.

7. An integrated aluminum alloy gooseneck beam according to any one of claims 1 to 6, characterized in that: All feature surfaces are formed in one step through the extrusion process.

8. An integrated aluminum alloy gooseneck beam assembly, characterized in that: It comprises an integrated aluminum alloy gooseneck beam as described in claim 7, the front end of the integrated aluminum alloy gooseneck beam overlaps the front floor assembly, the rear end of the integrated aluminum alloy gooseneck beam overlaps the rear floor assembly, and the bottom "I"-shaped structure of the integrated aluminum alloy gooseneck beam is connected to the longitudinal beam.

9. The integrated aluminum alloy gooseneck beam assembly according to claim 8, characterized in that: The lower part of the front floor assembly is overlapped on the characteristic surface six of the integrated aluminum alloy gooseneck beam, and the characteristic surface five is welded to the upper part of the front floor assembly; the rear floor assembly is overlapped on the characteristic surface seven of the aluminum alloy gooseneck beam, and the characteristic surface three is welded to the upper part of the rear floor assembly.

10. The integrated aluminum alloy gooseneck beam assembly according to claim 8, characterized in that: The characteristic surface nine on the aluminum alloy gooseneck cross beam is connected with the longitudinal beam through a rubber pad.

Images