High-strength aluminum alloy cross beam
By installing reinforcement plates and fixed components in the aluminum alloy beam of the automobile bumper, combined with the energy absorption device, the problem of insufficient strength of the existing automobile bumper reinforcement beam is solved, and more efficient collision absorption and personnel safety protection are achieved.
Patent Information
- Application Number
- CN202421046827.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The reinforced beam materials of existing automobile bumpers are mostly plastic or rubber, with low strength and prone to aging, or are hollow tubular structures of aluminum alloy, which are prone to deform during collisions and cannot protect the people and vehicles in the vehicle to the maximum extent.
The beam main body made of aluminum alloy material is equipped with reinforcement plates inside it, and the fixed components and energy-absorbing devices are combined to improve the strength and impact resistance of the beam to ensure that the impact force can be effectively absorbed during collision.
It improves the anti-collision and impact resistance of the car bumper, reduces the damage to the car body by collision, enhances the safety of the personnel in the car, and extends the service life.
Smart Images
Figure CN222329650U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile bumpers, in particular to a high-strength aluminum alloy crossbeam. Background Art
[0002] The automobile bumper is a safety device that absorbs and mitigates external impact and protects the front and rear of the vehicle body. It is the first component to be contacted in a front or rear collision accident, and plays an important role in reducing the damage to pedestrians caused by collision accidents and reducing the damage to vehicles caused by low-speed collision accidents. Existing automobile bumpers are generally composed of a plastic decorative shell, a shock-absorbing and buffering device, and a reinforcing beam. The reinforcing beam that constitutes the bumper is made of plastic, rubber or metal. Although the structure of plastic or rubber is light, the strength is low. When the car is hit, it cannot achieve the maximum protection effect, which can easily cause injuries to the occupants of the car. In addition, plastic or rubber has high environmental requirements, is easy to age, and has a short service life. The reinforcing beam made of metal is generally a hollow tubular structure made of aluminum alloy or steel. Although it has good strength, when the car is hit, the external force can easily deform and bend the reinforcing beam of the hollow tube, and it cannot achieve the maximum protection effect. Based on this, it is necessary to provide a reinforcing beam with high strength and not easy to deform. Utility Model Content
[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a high-strength aluminum alloy crossbeam. By arranging a reinforcing plate inside the main beam, the strength of the main beam is improved. The reinforcing plate can withstand impacts on its width surface and can effectively protect people in the car in conjunction with an energy absorption device.
[0004] The above technical purpose of the utility model is achieved through the following technical solutions: a high-strength aluminum alloy crossbeam, including an aluminum alloy crossbeam, the aluminum alloy crossbeam is installed on a car bumper, the car bumper also includes a plastic protective shell and an energy absorption device, the aluminum alloy crossbeam includes a crossbeam body, the crossbeam body includes a main beam made of aluminum alloy material and a fixing component, the fixing component is used to fix the main beam on the car body, the contour surface of the main beam is arc-shaped, the main beam has a hollow cavity inside, at least one reinforcing plate is arranged in the cavity, the reinforcing plate extends along the length direction of the main beam, the width of the reinforcing plate is 1-3cm, the thickness of the main beam is 3-5cm, and the width direction of the reinforcing plate is consistent with the thickness direction of the main beam.
[0005] The utility model is further configured as follows: there are two fixing components, the two fixing components are respectively arranged at both ends of the main beam, each fixing component includes a base body and a fixing plate, the base body includes a connecting column and a connecting plate, one end of the connecting column is fixed on the main beam, the connecting plate is installed at the end of the connecting column away from the main beam, the connecting column is an aluminum alloy hexagonal tube, a connecting pipe is provided in the middle of the connecting column, reinforcing ribs extend from four sides of the connecting pipe, and the reinforcing ribs are connected to the inner wall of the connecting column.
[0006] The utility model is further configured as follows: the main beam is integrally formed, and connecting holes and fixing holes are respectively opened at both ends of the main beam, each connecting hole is provided with a connecting screw, and each fixing hole is provided with a fixing bolt, the connecting hole passes through the main beam, and the connecting screw extends into the connecting pipe after passing through the connecting hole, the fixing plate is fastened to the main beam by the fixing bolt, and the upper end of the fixing plate has a bending portion.
[0007] The utility model is further configured as follows: the fixing plate is made of spring steel, the bent portion is provided with a plurality of penetrating mounting holes, the connecting pipe is a hexagonal pipe, the connecting pipe is made of aluminum alloy, a connecting cavity is provided in the middle of one end of the connecting pipe facing the main beam, an internal thread is provided on the inner wall of the connecting cavity, one end of the connecting screw extends into the connecting cavity and is threadedly connected to the internal thread.
[0008] The utility model is further configured as follows: the energy absorbing device is fixedly mounted on a side of the main beam facing the plastic protective shell, the energy absorbing device has a shell, a plurality of energy absorbing sheets are evenly arranged in the shell, the shell is made of hard polyurethane foam plastic material, the energy absorbing sheets are made of foam aluminum material, the energy absorbing sheets are rectangular, and the energy absorbing sheets are vertically arranged in the shell.
[0009] The utility model is further configured as follows: a groove body is also provided on the side of the main beam, and the groove body is respectively arranged on the upper end surface and the lower end surface of the main beam, and each of the groove bodies is filled with a foam aluminum plate, and the foam aluminum plate is adhered to the groove body.
[0010] In summary, the utility model has the following beneficial effects: the main beam made of aluminum alloy has high strength, and the hollow cavity therein is provided with a reinforcing plate, which further improves the strength of the main beam and improves the anti-collision and impact resistance effects; the fixing assembly is used for convenient installation of the main beam and the vehicle body; the hexagonal tubular shape improves the structural strength and stability; the fixing plate is elastic and improves the buffering effect of the main beam; the energy absorption device cooperates with the main beam to improve the shock absorption, buffering and energy absorption effects of the bumper, effectively reduces the damage to the vehicle body caused by the collision, and improves the safety of the people in the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0012] Figure 2 This is a schematic diagram of the main structure of the beam of the utility model;
[0013] Figure 3 It is a schematic diagram of the exploded structure of the main body of the crossbeam of the utility model.
[0014] In the figure: 1. plastic protective shell; 2. energy absorbing device; 3. crossbeam body; 4. main beam; 41. cavity; 5. reinforcement plate; 6. seat body; 61. connecting column; 62. connecting plate; 63. connecting pipe; 7. fixing plate; 71. bending part; 8. connecting hole; 9. fixing hole; 10. connecting screw; 11. fixing bolt. DETAILED DESCRIPTION
[0015] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.
[0016] like Figure 1 , Figure 2 As shown, the utility model is a high-strength aluminum alloy crossbeam. The automobile bumper is composed of a plastic protective shell 1, an aluminum alloy crossbeam and an energy absorbing device 2 arranged on the aluminum alloy crossbeam. The aluminum alloy crossbeam is a part of the automobile bumper. The aluminum alloy crossbeam includes a crossbeam body 3. The crossbeam body 3 is fixedly installed at the front and rear of the automobile body. When in use, the crossbeam body 3 is composed of a main beam 4 made of aluminum alloy material and a fixing component. The main beam 4 is curved as a whole. There is a certain curvature between one end of the main beam 4 and the other end. The interior of the main beam 4 has a hollow cavity 41. A reinforcing plate 5 is arranged in the cavity 41. The main beam 4 The reinforcing plate 5 is formed by one-time stamping of aluminum profiles, and extends along the length direction of the main beam 4. The overall thickness of the main beam 4 is 3-5 cm, and the width of the reinforcing plate 5 is 1-3 cm. The width direction of the reinforcing plate 5 is consistent with the thickness direction of the main beam 4. The reinforcing plate 5 can improve the strength of the main beam 4. The reinforcing plate 5 is a strip-shaped plate, and the force-bearing surface in the main beam 4 is the back side of the spine, which can withstand a large impact force; the upper end face and the lower end face of the main beam 4 respectively have a groove body, and each groove body is filled with a foam aluminum plate, which is cut into a shape corresponding to the internal structure of the groove body and is adhered to the groove body by adhesive, thereby improving the energy absorption effect of the main beam 4.
[0017] like Figure 2 , Figure 3As shown, the integrally formed main beam 4 is also provided with a plurality of holes, which are divided into two groups. The two groups of holes are respectively arranged at the left and right ends of the main beam 4, each group of holes includes a connecting hole 8 and a fixing hole 9, and a connecting screw 10 is arranged in the connecting hole 8, and a fixing bolt 11 is arranged in the fixing hole 9; there are two fixing components, which are symmetrically arranged, and each fixing component corresponds to a group of holes. When in use, the two fixing components are respectively installed at the left and right ends of the main beam 4, and the fixing components are installed on the back side of the main beam 4, that is, the side of the main beam 4 facing the vehicle body, and the fixing components are used to fix the main beam 4 on the vehicle body.
[0018] Specifically, Figure 2 , Figure 3 As shown, each fixing assembly is composed of a seat body 6 and a fixing plate 7, and the seat body 6 is composed of a connecting column 61 and a connecting plate 62. A connecting pipe 63 is arranged in the connecting column 61. The connecting column 61 and the connecting pipe 63 are both aluminum alloy hexagonal tubes, which improve the stability and strength during installation. The connecting pipe 63 is placed in the middle of the connecting column 61, and reinforcing ribs are extended outward on at least four surfaces of the connecting pipe 63. The reinforcing ribs are connected to the inner wall of the connecting column 61. The reinforcing ribs are used to fix the connecting pipe 63 and improve the strength of the connecting column 61. When in use, a connecting cavity with an internal thread is opened in the middle of the connecting pipe 63, and the end of the connecting pipe 63 is horizontal with the end of the connecting column 61. The connecting column 61 is pressed against the back of the main beam 4 to align the connecting cavity with the connecting hole 8, and then the connecting screw 10 is inserted into the connecting cavity through the connecting hole 8. The connecting screw 10 is rotated clockwise to fix the connecting pipe 63. The connecting column 61 is fixedly connected to the main beam 4, and then the connecting plate 62 is fixedly connected to the other end of the connecting column 61 by bolts, and the two seat bodies 6 are respectively installed on the main beam 4; the fixing plate 7 is made of spring steel, and the upper end of the fixing plate 7 has a bending portion 71, and the bending portion 71 has a mounting hole. When in use, the fixing plate 7 is pressed against the back of the main beam 4, so that the screw hole at the lower end of the fixing plate 7 is aligned with the fixing hole 9, and the fixing plate 7 is fastened to the main beam 4 by the fixing bolts 11, and the main beam 4 equipped with the fixing assembly is installed on the vehicle body. Specifically, the connecting plate 62 is penetrated by bolts and then fixed to the vehicle body, and finally the bolts are passed through the mounting holes of the bending portion 71 to connect it to the vehicle body above the main beam 4. When the main beam 4 is collided, part of the impact force can be dispersed through the elastic fixing plate 7, while the stability and firmness of the main beam 4 during installation are improved.
[0019] like Figure 1As shown, the energy absorbing device 2 is fixedly installed on the side of the main beam 4 facing the plastic protective shell 1, that is, the front side of the main beam 4. The energy absorbing device 2 has a shell, and a plurality of energy absorbing plates are evenly arranged in the shell. The shell is made of hard polyurethane foam plastic material, and the energy absorbing plates are made of foam aluminum material. The energy absorbing plates are rectangular and vertically arranged in the shell. When the main beam 4 is collided, the energy absorbing device 2 can absorb a large amount of impact force through the breakage of the energy absorbing plates, thereby reducing damage to the vehicle body and protecting the people in the vehicle.
[0020] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A high-strength aluminum alloy crossbeam, comprising an aluminum alloy crossbeam, wherein the aluminum alloy crossbeam is mounted on a car bumper, wherein the car bumper further comprises a plastic protective shell (1) and an energy absorbing device (2), wherein: The aluminum alloy cross beam comprises a cross beam body (3), the cross beam body (3) comprises a main beam (4) made of aluminum alloy material and a fixing assembly, the fixing assembly is used to fix the main beam (4) on the vehicle body, the contour surface of the main beam (4) is arc-shaped, the main beam (4) has a hollow cavity (41) inside, at least one reinforcing plate (5) is arranged in the cavity (41), the reinforcing plate (5) extends along the length direction of the main beam (4), the width of the reinforcing plate (5) is 1-3 cm, the thickness of the main beam (4) is 3-5 cm, and the width direction of the reinforcing plate (5) is consistent with the thickness direction of the main beam (4).
2. The high-strength aluminum alloy crossbeam according to claim 1, characterized in that: Two fixing assemblies are provided, and the two fixing assemblies are respectively arranged at two ends of the main beam (4). Each fixing assembly comprises a seat body (6) and a fixing plate (7). The seat body (6) comprises a connecting column (61) and a connecting plate (62). One end of the connecting column (61) is fixed on the main beam (4), and the connecting plate (62) is installed on an end of the connecting column (61) away from the main beam (4). The connecting column (61) is an aluminum alloy hexagonal tube. A connecting pipe (63) is provided in the middle of the connecting column (61). Reinforcing ribs are respectively extended from four sides of the connecting pipe (63), and the reinforcing ribs are connected to the inner wall of the connecting column (61).
3. The high-strength aluminum alloy crossbeam according to claim 2, characterized in that: The main beam (4) is integrally formed, and a connecting hole (8) and a fixing hole (9) are respectively provided at both ends of the main beam (4). A connecting screw (10) is provided in each of the connecting holes (8), and a fixing bolt (11) is provided in each of the fixing holes (9). The connecting hole (8) passes through the main beam (4), and the connecting screw (10) extends into the connecting pipe (63) after passing through the connecting hole (8). The fixing plate (7) is fastened to the main beam (4) by the fixing bolt (11), and the upper end of the fixing plate (7) has a bent portion (71).
4. The high-strength aluminum alloy crossbeam according to claim 3, characterized in that: The fixing plate (7) is made of spring steel, the bent portion (71) is provided with a plurality of through-going mounting holes, the connecting pipe (63) is a hexagonal pipe, the connecting pipe (63) is made of aluminum alloy, a connecting cavity is provided in the middle of one end of the connecting pipe (63) facing the main beam (4), an inner wall of the connecting cavity is provided with an internal thread, one end of the connecting screw (10) extends into the connecting cavity and is threadedly connected to the internal thread.
5. The high-strength aluminum alloy crossbeam according to claim 1, characterized in that: The energy absorbing device (2) is fixedly mounted on a side of the main beam (4) facing the plastic protective shell (1), and the energy absorbing device (2) comprises a shell, in which a plurality of energy absorbing sheets are evenly arranged, the shell is made of hard polyurethane foam plastic material, the energy absorbing sheets are made of foam aluminum material, the energy absorbing sheets are rectangular, and the energy absorbing sheets are vertically arranged in the shell.
6. The high-strength aluminum alloy crossbeam according to claim 5, characterized in that: The side of the main beam (4) is also provided with a groove body, and the groove body is respectively arranged on the upper end surface and the lower end surface of the main beam (4), and each of the groove bodies is filled with a foam aluminum plate, and the foam aluminum plate is adhered to the groove body.