Integrated punch forming front lower camber beam of heavy-duty commercial vehicle

Abstract

The utility model discloses an integrated punch forming front lower camber beam of a heavy-duty commercial vehicle, which belongs to the technical field of front lower camber beams of heavy-duty commercial vehicles and comprises an integrated punch forming front lower camber beam body which is integrally bent in a U shape, and the section of the front lower camber beam body is n-shaped. The front lower camber beam body comprises a web and wing plates connected to the two sides of the web, and the sides, away from the web, of the wing plates are turned outwards to form turned edges. The front end large castings are installed at the front ends of the two frame longitudinal beams, the plate spring supports are installed on the lower portions of the front end large castings, the front lower camber beam body which is integrally formed in a punching mode and provided with the n-shaped section is connected with the two plate spring supports, and the torsion resistance and the rollover resistance of the heavy-duty commercial vehicle are effectively improved. The front lower camber beam body is easy to form and free of welding, the problem of stress concentration is avoided, and the overall structural strength of the front lower camber beam body is improved; the overall disassembly and assembly are convenient, and assembly is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of front lower bending beams for heavy commercial vehicles, in particular to an integrated stamping-formed front lower bending beam for heavy commercial vehicles. Background Art

[0002] Heavy commercial vehicles are those designed to transport large amounts of goods, usually with a high load capacity and a long driving range. These vehicles are widely used in logistics, construction, mining and public services.

[0003] The front lower bending beam of heavy-duty commercial vehicles is an important component to improve the frame strength of heavy-duty commercial vehicles and enhance the anti-torsion and anti-rollover capabilities of heavy-duty commercial vehicles. Usually, the front lower bending beam of heavy-duty commercial vehicles is connected and installed between the front ends of the two longitudinal beams, which provides good anti-torsion support for the front part of the frame and improves the anti-rollover capability of heavy-duty commercial vehicles.

[0004] At present, the front lower curved beams of various heavy-duty commercial vehicles mostly use a simple structure of bending tubular parts and welding supports. The tubular parts are mostly round tubes or square tubes. This structure of the front lower curved beam of heavy-duty commercial vehicles requires high processing accuracy of parts (tubular parts and welding supports), and is prone to defects such as stress concentration during the welding process of parts, which will affect the overall structural strength of the front lower curved beam.

[0005] For heavy-duty commercial vehicles used in engineering, due to the complex road conditions and high center of mass of heavy-duty transportation, the requirements for vehicle torsion resistance and rollover resistance are relatively high. The traditional heavy-duty commercial vehicle front lower curved beam (a simple structure of bending a tube and welding a support) is not suitable for heavy-duty commercial vehicles used in engineering. Utility Model Content

[0006] In order to solve the problem of front lower curved beams of various heavy-duty commercial vehicles, a simple structure of bending tubular parts and welding supports is often used. The tubular parts are mostly round tubes or square tubes. This structure of the front lower curved beam of heavy-duty commercial vehicles requires high machining accuracy of parts and is prone to defects such as stress concentration during the welding process of parts, which will affect the overall structural strength of the front lower curved beam.

[0007] To solve the problem, the utility model provides an integrated stamping front lower bending beam for a heavy commercial vehicle.

[0008] The utility model is realized by the following technical solutions:

[0009] A one-piece stamped front lower curved beam for a heavy-duty commercial vehicle comprises an one-piece stamped front lower curved beam body that is bent in a U-shape as a whole, and the cross-section of the front lower curved beam body is in a "J" shape; the front lower curved beam body comprises a web plate and wing plates connected to both sides of the web plate, and the side of the wing plate away from the web plate is folded outwardly with a flange.

[0010] A further improvement of the utility model is that a concave lower curved portion is provided at a bending position on one side of the front lower curved beam body.

[0011] A further improvement of the utility model is that second mounting holes are provided at both ends of the wing plate, and bolts capable of being connected and mounted with the leaf spring support are passed through the second mounting holes.

[0012] A further improvement of the utility model is that a first mounting hole is opened in the middle of one side wing plate; it also includes an intercooler protection plate mounting bracket that can be connected and installed with the first mounting hole, and the intercooler protection plate mounting bracket is used to connect and install the intercooler protection plate.

[0013] A further improvement of the utility model is that a corresponding first mounting hole is opened in the middle of the other side wing plate; and also includes a supporting sleeve that can be supported between the two wing plates and can be installed by bolt connection through the first mounting hole.

[0014] A further improvement of the utility model is that a first transition fillet is provided between the wing plate and the web plate.

[0015] A further improvement of the utility model is that a second transition fillet is provided between the flange and the wing plate.

[0016] A further improvement of the utility model is that the overall thickness of the front lower curved beam body is uniform.

[0017] A further improvement of the utility model is that the thickness of the front lower curved beam body is 2-4 mm.

[0018] A further improvement of the utility model is that the web width is 130 mm, the wing height is 86 mm, and the flange width is 40 mm.

[0019] It can be seen from the above technical solutions that the beneficial effects of the utility model are:

[0020] A front end large casting is installed at the front end of the two frame longitudinal beams, and a leaf spring support is installed at the lower part of the front end large casting. The front lower curved beam body with a "J"-shaped cross-section formed by one-piece stamping is connected and installed with the two leaf spring supports, which effectively improves the torsion resistance and rollover resistance of heavy-duty commercial vehicles; the front lower curved beam body is easy to form and has no welding, which avoids stress concentration problems and improves the overall structural strength of the front lower curved beam body; the overall disassembly and assembly are convenient, which is conducive to assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the first perspective of the specific embodiment of the present utility model.

[0023] Figure 2 This is a schematic diagram of the second perspective of the specific embodiment of the present utility model.

[0024] Figure 3 This is a front view schematic diagram of the specific embodiment of the present utility model.

[0025] Figure 4 This is a schematic diagram of the first perspective of the installation of the front lower bent beam body of the specific embodiment of the present utility model.

[0026] Figure 5 This is a schematic diagram of the second perspective of the installation of the front lower bent beam body of the specific embodiment of the present utility model.

[0027] Figure 6 This is a schematic diagram of the first perspective of the installation of the intercooler protection plate of the specific embodiment of the present utility model.

[0028] Figure 7 This is a schematic diagram of the second perspective of the installation of the intercooler protection plate of the specific embodiment of the present utility model.

[0029] In the drawings: 1. Front lower bent beam body, 11. Web, 12. Flange, 13. Flanging, 14. First mounting hole, 15. Second mounting hole, 16. Lower bent part, 2. Frame longitudinal beam, 3. Front large casting, 4. Leaf spring support, 5. Intercooler protection plate mounting bracket, 6. Intercooler protection plate. Specific embodiment

[0030] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0031] As Figure 1-5 shown, the present utility model discloses a front lower bent beam for a heavy commercial vehicle with integral stamping, including a front lower bent beam body 1 formed by integral stamping and integrally bent in a U shape, and the cross-section of the front lower bent beam body 1 is in a "several" shape; and the front lower bent beam body 1 includes a web 11 and flanges 12 connected to both sides of the web 11, and a flanging 13 is turned outwards on the side of the flange 12 away from the web 11.

[0032] A front end large casting 3 is installed at the front end of the two frame longitudinal beams 2, and a leaf spring support 4 is installed at the lower part of the front end large casting 3. The front lower curved beam body 1 with a "J"-shaped cross-section formed by integral stamping is connected and installed with the two leaf spring supports 4, which effectively improves the anti-torsion and anti-rollover capabilities of heavy-duty commercial vehicles; the front lower curved beam body 1 is easy to form and has no welding, which avoids stress concentration problems and improves the overall structural strength of the front lower curved beam body 1; the overall disassembly and assembly are convenient, which is conducive to assembly.

[0033] Among them, Figure 1-3 As shown, a concave lower curved portion 16 is provided at a bending position on one side of the front lower curved beam body 1. By designing the concave lower curved portion 16, the radiator water outlet pipe can be avoided at the upper part of this position to avoid interference caused by the water pipe jumping during operation.

[0034] Two second mounting holes 15 are respectively provided at both ends of the wing plate 12, and bolts capable of connecting and mounting with the leaf spring support 4 are passed through the second mounting holes 15. The leaf spring support 4 is clamped between the two wing plates 12 and is installed by bolt connection, so that the front lower curved beam body 1 can be reliably and conveniently installed.

[0035] Two first mounting holes 14 are provided in the middle of one side wing plate 12; an intercooler protection plate mounting bracket 5 which can be connected and mounted with the first mounting hole 14 is also included, and the intercooler protection plate mounting bracket 5 is used to connect and mount the intercooler protection plate 6. The intercooler protection plate mounting bracket 5 can be selectively installed. When the intercooler protection plate mounting bracket 5 is installed, Figure 4 , 6 As shown, by connecting and installing the intercooler protection plate mounting bracket 5 in the middle of a wing plate 12, the intercooler protection plate 6 is connected and installed through the intercooler protection plate mounting bracket 5, so as to realize the reliable connection and installation of the intercooler protection plate 6; when the intercooler protection plate mounting bracket 5 is not installed, as shown in FIG. Figure 7 As shown, the front lower curved beam body 1 with a "J"-shaped cross section is connected with the intercooler protection plate 6 (rear front) by integral stamping, so as to achieve effective protection of the upper cold parts, shorten the design length of the intercooler protection plate 6, reduce its own weight, and achieve lightweight design.

[0036] Furthermore, a corresponding first mounting hole 14 is opened in the middle of the other side wing plate 12, and a supporting sleeve that can be supported between the two wing plates 12 and can be installed by bolts passing through the first mounting hole 14 is also included. The supporting sleeve is selectively installed to effectively strengthen the overall structure of the front lower curved beam body 1.

[0037] A first transition fillet is provided between the wing plate 12 and the web 11. A second transition fillet is provided between the flange 13 and the wing plate 12. A smooth transition of the bending position is achieved, the force bearing performance is improved, and the stamping forming is convenient.

[0038] The front lower curved beam body 1 has a uniform overall thickness. The front lower curved beam body 1 has a thickness of 2-4 mm. The web 11 has a width of 130 mm, the wing 12 has a height of 86 mm, and the flange 13 has a width of 40 mm. The overall structural strength is ensured and the molding is easy.

[0039] The heavy-duty commercial vehicle has an integrally stamped front lower curved beam, a front end large casting 3 is installed at the front end of two frame longitudinal beams 2, and a leaf spring support 4 is installed at the lower part of the front end large casting 3. The front lower curved beam body 1 with a "J"-shaped cross-section formed by integral stamping is connected and installed with the two leaf spring supports 4, which effectively improves the anti-torsion and anti-rollover capabilities of the heavy-duty commercial vehicle; the front lower curved beam body 1 is easy to form and has no welding, which avoids stress concentration problems and improves the overall structural strength of the front lower curved beam body 1; the overall disassembly and assembly are convenient, which is conducive to assembly.

[0040] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0041] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A one-piece stamped front lower bending beam for a heavy commercial vehicle, characterized in that: It includes a front lower bent beam body (1) formed by integral stamping and integrally bent in a U shape. The cross-section of the front lower bent beam body (1) is in a "ji" shape. The front lower bent beam body (1) includes a web (11) and wing plates (12) connected to both sides of the web (11). A flanging (13) is turned outward on the side of the wing plate (12) away from the web (11).

2. The integrated stamping front lower bending beam for heavy commercial vehicles according to claim 1 is characterized in that: A concave lower bent part (16) is provided at the bent position on one side of the front lower bent beam body (1).

3. The integrated stamping front lower bending beam for heavy commercial vehicles according to claim 1, characterized in that: Second mounting holes (15) are opened at both ends of the wing plate (12), and bolts capable of being connected and mounted with a leaf spring support (4) are inserted into the second mounting holes (15).

4. The integrated stamping front lower bending beam for heavy commercial vehicles according to claim 1, characterized in that: A first mounting hole (14) is opened in the middle of one side wing plate (12). It also includes an intercooler protection plate mounting bracket (5) capable of being connected and mounted with the first mounting hole (14), and the intercooler protection plate mounting bracket (5) is used for connecting and mounting an intercooler protection plate (6).

5. The integrated stamping front lower bending beam for heavy commercial vehicles according to claim 4 is characterized in that: A corresponding first mounting hole (14) is opened in the middle of the other side wing plate (12). It also includes a support sleeve capable of being supported between the two wing plates (12) and connected and mounted by bolts passing through the first mounting holes (14).

6. The integrated stamping front lower bending beam for heavy commercial vehicles according to claim 1, characterized in that: A first transition fillet is provided between the wing plate (12) and the web (11).

7. The integrated stamping front lower bending beam for heavy commercial vehicles according to claim 1, characterized in that: A second transition fillet is provided between the flanging (13) and the wing plate (12).

8. The integrated stamping front lower bending beam for heavy commercial vehicles according to claim 1, characterized in that: The overall thickness of the front lower bent beam body (1) is uniform.

9. The integrated stamping front lower bending beam for heavy commercial vehicles according to claim 8, characterized in that: The thickness of the front lower bent beam body (1) is 2 - 4 mm.

10. The integrated stamping front lower bending beam for heavy commercial vehicles according to claim 1, characterized in that: The width of the web (11) is 130 mm, the height of the wing plate (12) is 86 mm, and the width of the flanging (13) is 40 mm.

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