High-strength low-deformation automobile cross beam

Abstract

The utility model discloses a high -strength low deformation's car crossbeam, including crossbeam main part, the positioning splicing insert block both sides edge and end part connecting seat other end both sides edges all are equipped with the welding groove, the crossbeam main part is wrapped with the covering surface layer, and the crossbeam main part other two sides are combined distribution and have the auxiliary support, the auxiliary support and end part connecting seat inner wall are inserted into and are connected with the first fixed bolt, and the auxiliary support inner wall transversely fixedly connected with horizontal reinforcing rib. This one kind high -strength low deformation's car crossbeam can pass through the "G" type aluminum alloy material of crossbeam main part and the carbon fiber composite material of covering surface layer, in the light weight simultaneously, promote the strength, effectively resist the bending, distortion deformation, and can pass through the auxiliary support, strengthen the support, horizontal reinforcing rib, vertical reinforcing rib and further strengthen the support structure, more stable, and can pass through the first fixed bolt and combine the installation of auxiliary support, and the independent dismounting replacement of convenient, the maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of automotive crossbeam technology, specifically a high-strength, low-deformation automotive crossbeam. Background Technology

[0002] An automobile is a non-rail-borne vehicle driven by a power source and having four or more wheels. It is mainly used for transporting people and / or goods, towing vehicles carrying people and / or goods, and for other special purposes. The frame is generally composed of longitudinal beams and crossbeams, and its main forms are side beam type and center beam type. The crossbeams are used to ensure the torsional stiffness of the frame and bear longitudinal loads, and can also support the main components of the automobile. Usually, trucks have 5-6 crossbeams, and sometimes more. The structural feature of the side beam type frame is that it is easy to install the cab, the cargo box and some special equipment, and to arrange other assemblies. It is also conducive to the modification and development of various types of automobiles. Therefore, it is widely used in trucks and most special vehicles.

[0003] A high-strength, deformation-resistant automotive crossbeam (CN202121870459.9) can achieve the effect of preventing deformation. When the device is subjected to external impact, the main body of the automotive crossbeam and the connecting bracket can move relative to each other under the action of the compression spring, which can play a buffering role. However, there are shortcomings. The existing equipment has poor pressure resistance, cannot be independently disassembled and replaced, and is inconvenient to maintain. Moreover, its own weight increases, which is not in line with the development trend of automotive lightweighting. Therefore, a high-strength, low-deformation automotive crossbeam is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a high-strength, low-deformation automotive crossbeam to solve the problems mentioned in the background art, such as the poor compressive strength of high-strength, anti-deformation automotive crossbeams, the inability to be independently disassembled and replaced, the inconvenience of maintenance, and the increased weight, which does not conform to the trend of automotive lightweighting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength, low-deformation automotive crossbeam, comprising a crossbeam body, end connecting seats fixedly connected to both ends of the crossbeam body, and a weight-reducing hole provided at one end of the end connecting seat; reinforcing brackets welded and fixedly connected to the inner walls of the front and rear sides of the crossbeam body; positioning splicing blocks protruding and fixedly connected to the other end of the end connecting seat, and second fixing bolts inserted into the inner wall of the crossbeam body; welding grooves provided on both sides of the positioning splicing block and on both sides of the other end of the end connecting seat; a covering layer covering the crossbeam body, and auxiliary brackets attached to the other two sides of the crossbeam body; first fixing bolts inserted through and connected to the inner wall of the end connecting seat; transverse reinforcing ribs fixedly connected laterally to the inner wall of the auxiliary brackets; and vertical reinforcing ribs fixedly connected vertically to the inner wall of the auxiliary brackets.

[0006] Preferably, the main body of the crossbeam is made of "I" shaped aluminum alloy, the covering layer is hot-pressed and wrapped to the main body of the crossbeam, and the covering layer is made of carbon fiber reinforced composite material.

[0007] Preferably, the end connector is fixedly connected to the main body of the crossbeam by a positioning splicing block and a second fixing bolt in a limiting insertion bolt configuration.

[0008] Preferably, the auxiliary support is bolted to the end connecting seat by the first fixing bolt, and the auxiliary support is symmetrically distributed on both sides of the main body of the crossbeam. The transverse reinforcing ribs and vertical reinforcing ribs are distributed in a cross-mesh pattern on the inner wall of the auxiliary support.

[0009] Preferably, the reinforcing bracket has an X-shaped structure, and the reinforcing bracket is connected in parallel to the inner walls of the front and rear sides of the main body of the crossbeam.

[0010] Preferably, the positioning splicing block and the end connecting seat are fixedly welded to the main body of the crossbeam through a welding groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the high-strength, low-deformation automotive crossbeam can improve strength while reducing weight by using the "I"-shaped aluminum alloy material of the crossbeam body and the carbon fiber composite material covering the surface, effectively resisting bending and torsional deformation. Moreover, the support structure can be further strengthened by auxiliary brackets, reinforcing brackets, horizontal reinforcing ribs, and vertical reinforcing ribs, making it more stable. Furthermore, the auxiliary brackets can be assembled and installed by the first fixing bolt, which is convenient for independent disassembly and replacement, and easy to maintain. Attached Figure Description

[0012] Figure 1 This is a front view of a high-strength, low-deformation automotive crossbeam according to the present invention. Figure 2 This is a schematic diagram of the internal structure of a high-strength, low-deformation automotive crossbeam according to the present invention. Figure 3 This is a side view of the internal structure of a high-strength, low-deformation automotive crossbeam according to the present invention. Figure 4 This utility model relates to a high-strength, low-deformation automotive crossbeam. Figure 2 Enlarged view of point A in the middle; Figure 5 This utility model relates to a high-strength, low-deformation automotive crossbeam. Figure 2 Enlarged view of section B in the middle.

[0013] In the diagram: 1. Main body of the crossbeam, 2. End connecting seat, 3. Auxiliary support, 4. Weight reduction hole, 5. Reinforcing support, 6. Covering surface, 7. First fixing bolt, 8. Horizontal reinforcing rib, 9. Vertical reinforcing rib, 10. Welding groove, 11. Positioning splicing block, 12. Second fixing bolt. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5This utility model provides a technical solution: a high-strength, low-deformation automotive crossbeam, comprising a crossbeam body 1, end connecting seats 2, auxiliary brackets 3, weight-reducing holes 4, reinforcing brackets 5, a covering surface 6, a first fixing bolt 7, transverse reinforcing ribs 8, vertical reinforcing ribs 9, a welding groove 10, a positioning splicing block 11, and a second fixing bolt 12. The end connecting seats 2 are fixedly connected to both ends of the crossbeam body 1, and a weight-reducing hole 4 is provided at one end of each end connecting seat 2. The crossbeam body 1 is made of I-shaped aluminum alloy. The covering surface 6 is hot-pressed and wrapped around the crossbeam body 1. 6 is made of carbon fiber reinforced composite material, which makes the main body of the crossbeam 1 and the covering layer 6 lighter while strengthening the structure. The end connecting seat 2 is fixedly connected to the main body of the crossbeam 1 by positioning splicing plug 11 and second fixing bolt 12 in a limiting insertion bolt manner. This allows the end connecting seat 2 to be installed with limiting insertion bolts, ensuring stable installation. The front and rear inner walls of the main body of the crossbeam 1 are welded and fixedly connected with reinforcing brackets 5. The reinforcing brackets 5 have an X-shaped structure and are connected parallel to the front and rear inner walls of the main body of the crossbeam 1. This allows the reinforcing brackets 5 to provide auxiliary support and strengthen the structure. The other end of the connector 2 has a positioning splicing block 11 protruding and fixedly connected to the front and rear sides. The positioning splicing block 11 and the inner wall of the crossbeam body 1 are connected by a second fixing bolt 12. The positioning splicing block 11 and the end connector 2 are welded to the crossbeam body 1 through a welding groove 10, which allows the positioning splicing block 11 and the end connector 2 to be welded and fixed, making the connection more stable. Welding grooves 10 are opened on both sides of the positioning splicing block 11 and on both sides of the other end of the end connector 2. The crossbeam body 1 is covered with a covering layer 6, and auxiliary bolts are distributed on the other two sides of the crossbeam body 1. The auxiliary support 3 is bolted to the end connecting seat 2 by the first fixing bolt 7. The auxiliary support 3 is symmetrically distributed on both sides of the main body 1 of the crossbeam. The horizontal reinforcing ribs 8 and vertical reinforcing ribs 9 are distributed in a cross mesh pattern on the inner wall of the auxiliary support 3. This makes it easy to bolt the auxiliary support 3 and strengthen the structure. The auxiliary support 3 and the inner wall of the end connecting seat 2 are connected by the first fixing bolt 7 through insertion. The inner wall of the auxiliary support 3 is horizontally fixed with the horizontal reinforcing ribs 8 and vertically fixed with the vertical reinforcing ribs 9.

[0016] Working principle: When using this high-strength, low-deformation automotive crossbeam, the auxiliary bracket 3 of the device is first fixed to the crossbeam body 1 by positioning splicing insert 11 and second fixing bolt 12 in a limiting insertion bolt manner. Then, it is welded and fixed by welding groove 10. Next, the auxiliary bracket 3 is assembled and installed on the side of the crossbeam body 1, and then bolted and fixed by first fixing bolt 7. In use, the aluminum alloy material of the crossbeam body 1 and the carbon fiber reinforced composite material covering the surface layer 6 can be used for lightweight treatment. When subjected to impact, the auxiliary bracket 3, reinforcing bracket 5, transverse reinforcing rib 8 and vertical reinforcing rib 9 can provide double auxiliary support for structural reinforcement. When the auxiliary bracket 3, transverse reinforcing rib 8 and vertical reinforcing rib 9 are damaged, they can be disassembled and replaced independently. This is the usage process of this high-strength, low-deformation automotive crossbeam.

[0017] It should be noted that this utility model is a high-strength, low-deformation automotive crossbeam. All components are standard parts or parts known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Furthermore, all electrical components mentioned above refer to power elements, electrical components, and the matching monitoring computer and power supply connected by wires. The specific connection method should refer to the working principle described above, where the electrical connection between each electrical component is completed in sequence. The detailed connection method is a well-known technology in the field.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-strength, low-deformation automotive crossbeam, comprising a crossbeam body (1), wherein end connecting seats (2) are fixedly connected to both ends of the crossbeam body (1), and one end of the end connecting seat (2) is provided with a weight-reducing hole (4), characterized in that: The main body of the crossbeam (1) has a reinforcing bracket (5) welded and fixedly connected to the inner walls of the front and rear sides. The other end of the end connecting seat (2) has a positioning splicing plug (11) protruding and fixedly connected to the front and rear sides. The positioning splicing plug (11) and the inner wall of the main body of the crossbeam (1) are connected by a second fixing bolt (12). Welding grooves (10) are opened on both sides of the positioning splicing plug (11) and both sides of the other end of the end connecting seat (2). The main body of the crossbeam (1) is covered with a covering layer (6). Auxiliary brackets (3) are attached to the other two sides of the main body of the crossbeam (1). The auxiliary brackets (3) and the inner wall of the end connecting seat (2) are connected by a first fixing bolt (7). The inner wall of the auxiliary brackets (3) is fixedly connected laterally with a transverse reinforcing rib (8). The inner wall of the auxiliary brackets (3) is fixedly connected vertically with a vertical reinforcing rib (9).

2. The high-strength, low-deformation automotive crossbeam according to claim 1, characterized in that: The main body of the crossbeam (1) is made of "I" shaped aluminum alloy, and the covering layer (6) is hot-pressed and wrapped with the main body of the crossbeam (1), and the covering layer (6) is made of carbon fiber reinforced composite material.

3. The high-strength, low-deformation automotive crossbeam according to claim 2, characterized in that: The end connector (2) is fixedly connected to the main body of the crossbeam (1) by a positioning splicing plug (11) and a second fixing bolt (12) in a limiting insertion bolt manner.

4. A high-strength, low-deformation automotive crossbeam according to claim 3, characterized in that: The auxiliary support (3) is bolted to the end connecting seat (2) by the first fixing bolt (7), and the auxiliary support (3) is symmetrically distributed on both sides of the main body of the crossbeam (1). The transverse reinforcing ribs (8) and vertical reinforcing ribs (9) are distributed in a cross mesh pattern on the inner wall of the auxiliary support (3).

5. A high-strength, low-deformation automotive crossbeam according to claim 4, characterized in that: The reinforcing bracket (5) has an X-shaped structure and is connected in parallel to the inner walls of the front and rear sides of the main beam (1).

6. A high-strength, low-deformation automotive crossbeam according to claim 5, characterized in that: The positioning splicing block (11) and the end connecting seat (2) are fixedly connected to the crossbeam body (1) by welding through the welding groove (10).

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