Integrated aluminum alloy casting main frame

Abstract

The utility model relates to the field of motorcycle frames, in particular to an integrated aluminum alloy casting main frame which comprises a steering vertical pipe and a frame main plate, one end of the frame main plate is fixedly connected to the outer wall of the steering vertical pipe, the other end of the frame main plate is used for being connected with an auxiliary frame, and the steering vertical pipe and the frame main plate are integrally formed through gravity casting. The high strength of the main frame and the simplicity of the production process of the main frame are guaranteed through gravity casting integral forming, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of motorcycle frames, and in particular to an integrated aluminum alloy cast main frame. Background Art

[0002] The main frame is the foundation for installing various assemblies and special working devices on the vehicle chassis. It is the matrix of the vehicle, supporting various components of the vehicle and bearing various dynamic loads generated from the engine, passengers, cargo, and during driving.

[0003] With the continuous maturity of the automotive market and the diversification of consumer demands, vehicle lightweighting, improved fuel economy, and enhanced safety have become important considerations for consumers when purchasing vehicles.

[0004] However, the existing main frames are welded by multiple frame tubes, with a large number of parts, complex manufacturing processes, low production efficiency, and the welded parts are prone to damage, affecting the rigidity and collision safety of the vehicle body. Utility Model Content

[0005] In order to improve production efficiency, this application provides an integrated aluminum alloy cast main frame.

[0006] The integrated aluminum alloy cast main frame provided by this application adopts the following technical solutions:

[0007] The integrated aluminum alloy cast main frame includes a steering head tube and a frame main board. One end of the frame main board is fixedly connected to the outer wall of the steering head tube, and the other end of the frame main board is used to connect to the sub-frame. The steering head tube and the frame main board are integrally formed by gravity casting.

[0008] By adopting the above technical solution, the high strength of the main frame and the simplicity of the main frame production process are ensured by integral forming through gravity casting, and the production efficiency is improved.

[0009] Preferably, the frame main board includes a first main beam, a second main beam, and a connecting beam. One end of the first main beam and one end of the second main beam are both fixedly connected to the outer wall of the steering head tube. The other end of the first main beam is fixedly connected to the other end of the second main beam. The connecting beam is arranged between the first main beam and the second main beam, and both ends of the connecting beam are respectively fixedly connected to the first main beam and the second main beam. The first main beam, the second main beam, and the connecting beam are integrally formed.

[0010] By adopting the above technical solution, the frame main board is connected and composed of the first main beam, the second main beam, and the connecting beam, reducing the overall weight of the frame main board. The connecting beam improves the overall structural strength of the frame main board and enhances the vehicle body rigidity.

[0011] Preferably, the main frame board further includes reinforcing ribs, which are fixedly connected to the outer wall of the steering column and the outer wall of the first main beam, and the first main beam, the second main beam, the connecting beam and the reinforcing ribs are integrally formed.

[0012] By adopting the above technical solution, the reinforcing ribs improve the connection strength between the steering column and the first main beam, enhance the overall structural strength of the main frame, improve the body rigidity, and the integral forming of the main frame board improves the production efficiency.

[0013] Preferably, there are multiple reinforcing ribs, and the multiple reinforcing ribs are arranged at intervals along the axial direction of the steering column.

[0014] By adopting the above technical solution, the multiple reinforcing ribs further improve the connection strength between the steering column and the first main beam, and enhance the overall structural strength of the main frame.

[0015] Preferably, the first main beam includes a fixed beam, a frame beam and a fixing plate. One end of the fixed beam is fixedly connected to the outer wall of the steering column, the other end of the fixed beam is fixedly connected to one end of the frame beam, the other end of the frame beam is fixedly connected to the end of the second main beam far from the steering column, the included angle between the fixed beam and the frame beam is set as an obtuse angle, and the fixing plate is fixedly connected to the end of the frame beam far from the fixed beam, and the fixing plate is used to connect the stand.

[0016] By adopting the above technical solution, the fixing plate is used to fix the stand, and the frame beam is not easily damaged under force, thus prolonging the service life of the frame.

[0017] Preferably, there are two main frame boards, the included angle between the two main frame boards is set as an acute angle, and the area between the two main frame boards is set as an installation cavity for placing the engine.

[0018] By adopting the above technical solution, the two main frame boards facilitate the installation and protection of the engine.

[0019] Preferably, one end of the main frame board facing the other main frame board is fixedly connected with a connecting plate, the connecting plate is provided with a connection port, and the connecting plate is used to fix the front support.

[0020] By adopting the above technical solution, it is convenient to fix the front support, improve the installation efficiency, the connecting plate is not easily damaged under force, and the service life of the main frame board is prolonged.

[0021] Preferably, the main frame board is provided with a through hole, the through hole penetrates through the main frame board, and the through hole communicates with the installation cavity.

[0022] By adopting the above technical solution, the through hole reduces the gravity of the main frame board, and at the same time, improves the heat dissipation efficiency and prolongs the service life of the motorcycle.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By using gravity casting for one-piece forming, the high strength of the main frame and the simplicity of the main frame production process are ensured, and the production efficiency is improved;

[0025] 2. The frame main board is composed of a first main beam, a second main beam and a connecting beam, reducing the overall weight of the frame main board. The connecting beam improves the overall structural strength of the frame main board and enhances the body rigidity;

[0026] 3. The reinforcing rib improves the connection strength between the steering column and the first main beam, enhances the overall structural strength of the main frame and the body rigidity. The one-piece forming of the frame main board improves the production efficiency. Description of the Drawings

[0027] Figure 1 is a schematic diagram of the overall structure of an integral aluminum alloy cast main frame.

[0028] Figure 2 is a schematic diagram of the overall structure of an integral aluminum alloy cast main frame, mainly used to show the through hole.

[0029] Description of the reference numerals: 1, steering column; 2, frame main board; 21, first main beam; 211, fixed beam; 212, frame beam; 2121, through hole; 213, fixing plate; 22, second main beam; 23, connecting beam; 231, connecting plate; 2311, connection port; 24, reinforcing rib; 25, mounting hole; 3, mounting cavity. Detailed Description of the Embodiment

[0030] The following is a further detailed description of the present application in conjunction with the attached Figure 1-2 drawings.

[0031] The embodiment of the present application discloses an integral aluminum alloy cast main frame. Referring to Figure 1 , the integral aluminum alloy cast main frame includes a steering column 1 and a frame main board 2. One end of the frame main board 2 is fixedly connected to the outer wall of the steering column 1, and the other end of the frame main board 2 is used to connect to the sub-frame. The steering column 1 and the frame main board 2 are integrally formed by gravity casting.

[0032] There are two frame main boards 2, and the two frame main boards 2 are arranged at intervals around the axis of the steering column 1. The included angle between the two frame main boards 2 is set as an acute angle, and the area between the two frame main boards 2 is set as a mounting cavity 3 for placing the engine. The frame main board 2 includes a first main beam 21, a second main beam 22, a connecting beam 23 and a reinforcing rib 24. The first main beam 21 includes a fixed beam 211, a frame beam 212 and a fixing plate 213.

[0033] Referring to Figure 1, one end of the fixed beam 211 and one end of the second main beam 22 are both fixedly connected to the outer wall of the steering riser 1. One end of the fixed beam 211 is fixedly connected to one end of the second main beam 22. The other end of the fixed beam 211 is fixedly connected to one end of the frame beam 212. The other end of the frame beam 212 is fixedly connected to the other end of the second main beam 22. The first main beam 21 and the second main beam 22 enclose an installation opening 25, and the installation opening 25 communicates with the installation cavity 3. The included angle between the fixed beam 211 and the frame beam 212 is set as an obtuse angle. The fixed plate 213 is fixedly connected to the end of the frame beam 212 away from the fixed beam 211, and the fixed plate 213 is used to connect the stand.

[0034] The connecting beam 23 is arranged in the installation opening 25. One end of the connecting beam 23 is fixedly connected to the outer wall of the fixed beam 211, and the other end of the connecting beam 23 is fixedly connected to one end of the second main beam 22. The reinforcing rib 24 is arranged on the side of the first main beam 21 away from the installation cavity 3. The reinforcing rib 24 is fixedly connected to the outer wall of the steering riser 1 and the outer wall of the first main beam 21. There are multiple reinforcing ribs 24, and the multiple reinforcing ribs 24 are arranged at intervals along the axial direction of the steering riser 1. The first main beam 21, the second main beam 22, the connecting beam 23 and the reinforcing rib 24 are integrally formed by gravity casting.

[0035] Refer to Figure 1 , a connecting plate 231 is fixedly connected to one end of the connecting beam 23 facing another connecting beam 23. The connecting plate 231 is provided with a connecting port 2311, and the connecting port 2311 penetrates through the connecting plate 231. The connecting plate 231 is used to fix the front support.

[0036] Refer to Figure 2 , the frame beam 212 is provided with a through port 2121, and the through port 2121 penetrates through the frame beam 212. The through port 2121 communicates with the installation cavity 3. There are three through ports 2121, and the three through ports 2121 are arranged at intervals along the length direction of the frame beam 212.

[0037] The implementation principle of the integral aluminum alloy casting main frame in the embodiment of the present application is as follows: The main frame is integrally formed by gravity casting. The connecting beam 23 improves the overall structural strength of the frame main board 2. The installation cavity 3 is used to install the engine. The installation opening 25 and the through port 2121 facilitate the heat dissipation of the engine. The reinforcing rib 24 improves the structural strength of the main frame. The integral forming improves the production efficiency.

[0038] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. One-piece aluminum alloy casting main frame, characterized by: The vehicle frame comprises a steering riser (1) and a main frame (2), wherein one end of the main frame (2) is fixedly connected to the outer wall of the steering riser (1), and the other end of the main frame (2) is used for connecting to a sub-frame, and the steering riser (1) and the main frame (2) are integrally formed by gravity casting.

2. The one-piece aluminum alloy casting main frame according to claim 1 is characterized in that: The vehicle frame mainboard (2) comprises a first main beam (21), a second main beam (22) and a connecting beam (23); one end of the first main beam (21) and one end of the second main beam (22) are both fixedly connected to the outer wall of the steering standpipe (1); the other end of the first main beam (21) is fixedly connected to the other end of the second main beam (22); the connecting beam (23) is arranged between the first main beam (21) and the second main beam (22); two ends of the connecting beam (23) are respectively fixedly connected to the first main beam (21) and the second main beam (22); the first main beam (21), the second main beam (22) and the connecting beam (23) are integrally formed.

3. The one-piece aluminum alloy casting main frame according to claim 2 is characterized in that: The vehicle frame mainboard (2) further comprises a reinforcing rib (24), wherein the reinforcing rib (24) is fixedly connected to an outer wall of the steering standpipe (1) and an outer wall of the first main beam (21), and the first main beam (21), the second main beam (22), the connecting beam (23) and the reinforcing rib (24) are integrally formed.

4. The one-piece aluminum alloy casting main frame according to claim 3 is characterized in that: A plurality of the reinforcing ribs (24) are provided, and the plurality of the reinforcing ribs (24) are arranged at intervals along the axial direction of the steering standpipe (1).

5. The one-piece aluminum alloy casting main frame according to claim 2, characterized in that: The first main beam (21) comprises a fixed beam (211), a frame beam (212) and a fixed plate (213); one end of the fixed beam (211) is fixedly connected to the outer wall of the steering riser (1); the other end of the fixed beam (211) is fixedly connected to one end of the frame beam (212); the other end of the frame beam (212) is fixedly connected to one end of the second main beam (22) away from the steering riser (1); the included angle between the fixed beam (211) and the frame beam (212) is set to be an obtuse angle; the fixed plate (213) is fixedly connected to one end of the frame beam (212) away from the fixed beam (211); and the fixed plate (213) is used to connect to the station frame.

6. The one-piece aluminum alloy casting main frame according to claim 1, characterized in that: Two vehicle frame main boards (2) are provided, the included angle between the two vehicle frame main boards (2) is set as an acute angle, the area between the two vehicle frame main boards (2) is set as a mounting cavity (3), and the mounting cavity (3) is used to place the engine.

7. The one-piece aluminum alloy casting main frame according to claim 6 is characterized in that: A connecting plate (231) is fixedly connected to one end of the vehicle frame main plate (2) facing the other vehicle frame main plate (2), the connecting plate (231) being provided with a connecting port (2311), and the connecting plate (231) being used to fix the front support.

8. The one-piece aluminum alloy casting main frame according to claim 6, characterized in that: The vehicle frame mainboard (2) is provided with a through opening (2121), the through opening (2121) passes through the vehicle frame mainboard (2), and the through opening (2121) is connected to the installation cavity (3).

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