A wind tunnel support tool for a vehicle bench test

Abstract

The utility model discloses a kind of automobile test bench air duct support tool, it includes air duct and support frame, the support frame is set in air duct outside, the support frame includes bottom plate, height adjusting structure and angle adjusting assembly, the height adjusting structure includes the lifting rod being set in the top of bottom plate, the lifting rod is sleeve pipe type structure, including inner tube and outer tube, inner tube can be freely moved up and down in outer tube, the angle adjusting assembly includes the connecting column in the bottom of air duct outlet, angle adjusting block is set on the connecting column, angle adjusting block middle is set for inserting the round hole of guide rod, after the round hole inserts guide rod, the angle of certain air duct can be adjusted using lever principle.The utility model uses support frame to match height and angle adjusting structure, reaches the effect that flexibly adjusting air duct position and angle, improves test adaptability.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive bench testing equipment, and in particular to a support fixture for an automotive bench testing air duct. Background Technology

[0002] In the field of automotive bench testing equipment technology, the air duct system plays a crucial role. Automotive bench testing is an indispensable part of the automotive R&D process, simulating various environments during actual vehicle operation to provide vital data support for performance evaluation and improvement. As a key component simulating the air convection environment of a vehicle during actual operation, the stability and positional accuracy of the air duct system directly affect the accuracy of the test data, thus significantly impacting vehicle R&D and performance enhancement. With the continuous development of the automotive industry, the requirements for bench testing are becoming increasingly stringent, and the demands on the stability and positional accuracy of the air duct system are becoming increasingly rigorous.

[0003] Prior to this technical solution, various methods were conventionally employed to address the support and fixation issues of duct systems. Traditional duct support fixtures were mostly fixed structures, rigidly connecting the duct to the frame using bolts or similar methods. Adjusting the position and angle of the duct typically required disassembling and reinstalling the bolts to achieve a certain degree of adjustment.

[0004] However, these existing technologies have obvious drawbacks. Traditional tooling lacks flexibility in adjustment, is mostly a fixed structure, and cannot be quickly adjusted according to different test requirements such as duct angle and height, resulting in poor adaptability. Utility Model Content

[0005] This application provides a support fixture for the air duct of an automotive bench test, which adopts a support frame with height and angle adjustment structure to achieve flexible adjustment of the air duct position and angle, thereby improving the test adaptability.

[0006] This application provides a support fixture for an automotive bench test air duct, which adopts the following technical solution: A support fixture for an automotive test bench air duct includes an air duct and a support frame. The support frame is located outside the air duct and includes a base plate, a height adjustment structure, and an angle adjustment assembly. The height adjustment structure includes a lifting rod located on the top of the base plate. The lifting rod is a sleeve-type structure, including an inner tube and an outer tube. The inner tube can move freely up and down inside the outer tube. The angle adjustment assembly includes a connecting column located at the bottom of the air duct outlet. An angle adjustment block is provided on the connecting column. The angle adjustment block has a circular hole in the middle for inserting a guide rod. After the guide rod is inserted into the circular hole, the air duct can be adjusted to a certain angle using the lever principle.

[0007] By adopting the above technical solution, the present invention provides an automotive bench test air duct support fixture. In use, the sleeve-type lifting rod of the height adjustment structure can adjust the height of the air duct, and the angle adjustment component can adjust the air duct to a certain angle by inserting the guide rod into the round hole of the angle adjustment block and through the lever principle. This achieves the adjustment of the air duct height and angle, improves the flexibility of the fixture adjustment, and can be adapted to the needs of different vehicle suspensions or calipers in bench simulation tests, with strong versatility.

[0008] Preferably, the support frame is made entirely of aluminum alloy.

[0009] By adopting the above technical solution, the use of aluminum alloy material in the support frame structure makes it lightweight, reducing the weight by 30% compared to traditional steel tooling, and making it easier to handle and maintain.

[0010] Preferably, the inner tube and the outer tube are provided with the same threaded holes, and when the inner tube is moved to a suitable position, the inner tube and the outer tube can be connected and fixed by at least two bolts.

[0011] By adopting the above technical solution, the inner and outer tubes can be fixed with bolts during use, which can achieve stable fixation of the height adjustment structure and ensure that the air duct remains stable after being adjusted to the appropriate height.

[0012] Preferably, the outer tube is fixedly welded to the base plate, and an arc-shaped plate is provided on the top of the inner tube, which is connected to the inner tube.

[0013] By adopting the above technical solution, the welding of the outer tube to the base plate makes the height adjustment structure more stable during use, and the combination of the arc plate and the inner tube can provide flexible adjustment of the air duct in different directions, improving the flexibility of tooling adjustment.

[0014] Preferably, the angle adjustment block is provided with a locking bolt, which is used to fix the guide rod inserted into the round hole.

[0015] By adopting the above technical solution, after adjusting the air duct angle, the guide rod can be fixed with locking bolts to keep the air duct angle stable, avoid accidental changes in the air duct angle, and ensure the accuracy of the air duct angle during the test.

[0016] Preferably, an air duct flange is provided on the outer side of the air duct, and the air duct flange is provided with a snap-fit ​​interface, which is used to connect with a quick connection device in bench testing.

[0017] By adopting the above technical solution, the duct flange can be connected to a quick-connect device via a snap-fit ​​interface, which can significantly shorten the duct assembly and disassembly time and improve the turnaround efficiency of bench testing.

[0018] Preferably, a rubber shock-absorbing pad is provided on the outer surface of the air duct to reduce the impact of airflow vibration on the supporting structure.

[0019] By adopting the above technical solution, rubber shock-absorbing pads are installed on the outer surface of the air duct during use, which can reduce the impact of airflow vibration on the support structure and the wear of the air duct, enhance the stability of the support fixture, and reduce the error rate of test data by more than 15%.

[0020] Preferably, the bottom of the base plate is provided with multiple casters, and each caster is provided with an independent braking device.

[0021] By adopting the above technical solution, multiple casters with independent braking devices are installed at the bottom of the base plate during use, which facilitates the overall movement and fixation of the tooling, improves the flexibility of the tooling, and allows for easy adjustment of its position according to test requirements.

[0022] In summary, this application has the following beneficial effects: 1. The present invention relates to an automotive bench test air duct support fixture, which achieves stepless adjustment of height and angle through a height adjustment structure and an angle adjustment component, and can be adapted to the needs of different vehicle suspensions or calipers in bench simulation tests, with strong versatility; 2. The present invention provides a support fixture for an automotive test bench air duct, which is equipped with a rubber shock-absorbing pad on the outer surface of the air duct, effectively reducing vibration interference and reducing the test data error rate by more than 15%, while also protecting the air duct from wear caused by frequent disassembly and assembly. 3. The automotive test bench air duct support fixture designed in this utility model adopts a support frame with height and angle adjustment structure, which achieves the effect of flexibly adjusting the position and angle of the air duct and improving the test adaptability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 An enlarged schematic diagram of the angle adjustment component is shown for an embodiment. Explanation of reference numerals in the attached drawings: 1. Air duct; 2. Support frame; 21. Base plate; 22. Height adjustment structure; 221. Lifting rod; 2211. Inner tube; 2212. Outer tube; 23. Angle adjustment assembly; 231. Connecting column; 232. Angle adjustment block; 233. Round hole; 3. Arc plate; 4. Locking bolt; 5. Air duct flange; 6. Rubber shock-absorbing pad; 7. Casters. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] This utility model discloses a support fixture for the air duct of an automotive test bench, such as... Figure 1 and Figure 2 As shown, the system includes an air duct 1 and a support frame 2. The support frame 2 is located outside the air duct 1 and provides support and fixation for the air duct 1, ensuring its stability during the test. The support frame 2 includes a base plate 21, a height adjustment structure 22, and an angle adjustment assembly 23. These parts work together to achieve flexible adjustment of the height and angle of the air duct 1 to adapt to different test requirements.

[0026] Specifically, the support frame 2 is made entirely of aluminum alloy. Aluminum alloy is lightweight and high-strength, which effectively reduces the weight of the support frame 2 compared to traditional steel tooling, making it easier to handle and maintain. Of course, in some special cases, other lightweight and high-strength alloy materials, such as magnesium alloy, can be used to replace aluminum alloy.

[0027] The base plate 21 is the foundation of the support frame 2, providing stable support for the entire support fixture. Multiple casters 7 are installed at the bottom of the base plate 21, each with an independent braking device. The casters 7 allow for easy movement of the support fixture as a whole, facilitating adjustments at different test sites or positions. The independent braking devices secure the casters 7 in place after the fixture has been moved to the desired position, ensuring that the fixture does not move during testing. The casters 7 are typically made of polyurethane, which offers good wear resistance and quiet operation; rubber wheels can also be used.

[0028] The height adjustment structure 22 includes a lifting rod 221 mounted on top of the base plate 21. The lifting rod 221 is a sleeve-type structure, comprising an inner tube 2211 and an outer tube 2212. The inner tube 2211 can move freely up and down within the outer tube 2212. This sleeve-type design allows the inner tube 2211 to slide flexibly up and down within the outer tube 2212, thereby adjusting the height of the air duct 1. The inner tube 2211 and outer tube 2212 have identical threaded holes. When the inner tube 2211 moves to the appropriate position, it can be connected and fixed to the outer tube 2212 using at least two bolts. Bolting ensures the stability of the connection between the inner tube 2211 and outer tube 2212, preventing the inner tube 2211 from sliding during testing. The outer tube 2212 is fixedly welded to the base plate 21, ensuring the robust connection between the lifting rod 221 and the base plate 21. An arc-shaped plate 3 is provided at the top of the inner tube 2211. The arc-shaped plate 3 is movably connected to the inner tube 2211. This design facilitates the angle adjustment of the angle adjustment component 23. The arc-shaped plate 3 can provide certain support and guidance for the air duct 1, and can be adjusted according to the shape of the air duct 1.

[0029] The angle adjustment assembly 23 includes a connecting column 231 located at the bottom of the outlet of the air duct 1. An angle adjustment block 232 is mounted on the connecting column 231. A circular hole 233 is provided in the center of the angle adjustment block 232 for inserting a guide rod. After the guide rod is inserted into the circular hole 233, the angle of the air duct 1 can be adjusted using the lever principle. A locking bolt 4 is provided on the angle adjustment block 232 to fix the guide rod inserted into the circular hole 233. When it is necessary to adjust the angle of the air duct 1, the guide rod is inserted into the circular hole 233, and by pushing the guide rod, the angle of the air duct 1 can be adjusted using the lever principle.

[0030] A flange is installed on the outer side of the air duct 1, and a snap-fit ​​interface is provided on the air duct 1 flange. The snap-fit ​​interface is used to connect with the quick connection device in the bench test. The cooperation between this snap-fit ​​interface and the quick connection device enables the air duct 1 to be quickly aligned and locked with the bench, which greatly shortens the disassembly and assembly time and improves the test efficiency.

[0031] Rubber damping pads 6 are installed on the outer surface of the air duct 1 to reduce the impact of airflow vibration on the supporting structure. The rubber damping pads 6 have good elasticity and damping performance, which can effectively absorb the vibration generated by the air duct 1 under the action of high-speed airflow, reduce the impact of vibration on the supporting structure, and also reduce wear on the air duct.

[0032] The implementation principle of this embodiment is as follows: The automotive test duct 1 support fixture of this embodiment, through the design of the support frame 2, utilizes the casters 7 on the base plate 21 to achieve flexible movement and fixation of the whole. The sleeve-type lifting rod 221 of the height adjustment structure 22 can easily adjust the height of the duct 1, and the stability after height adjustment is ensured by bolt fixation. The angle adjustment component 23 can flexibly adjust the angle of the duct 1 using the lever principle. The snap-on interface on the outside of the duct 1 enables quick connection with the test bench, shortening the disassembly and assembly time. The rubber shock-absorbing pad 6 effectively reduces the impact of airflow vibration on the support structure. Overall, this fixture solves the problems of inconvenient adjustment, poor stability, and cumbersome disassembly and assembly of existing fixtures, improving the adaptability, stability, and efficiency of the test, and has achieved significant improvement and enhancement compared with the existing technology.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A support fixture for an automotive test bench air duct (1), characterized in that: The system includes an air duct (1) and a support frame (2). The support frame (2) is located outside the air duct (1). The support frame (2) includes a base plate (21), a height adjustment structure (22), and an angle adjustment component (23). The height adjustment structure (22) includes a lifting rod (221) located on the top of the base plate (21). The lifting rod (221) is a sleeve structure, including an inner tube (2211) and an outer tube (2212). The inner tube (2211) can move freely up and down inside the outer tube (2212). The angle adjustment component (23) includes a connecting column (231) located at the bottom of the outlet of the air duct (1). An angle adjustment block (232) is provided on the connecting column (231). A round hole (233) for inserting a guide rod is provided in the middle of the angle adjustment block (232). After the guide rod is inserted into the round hole (233), the air duct (1) can be adjusted to a certain angle by lever principle.

2. The support fixture for an automotive test bench air duct (1) according to claim 1, characterized in that: The support frame (2) is made entirely of aluminum alloy.

3. The support fixture for an automotive test bench air duct (1) according to claim 1, characterized in that: The inner tube (2211) and the outer tube (2212) are provided with the same threaded holes. When the inner tube (2211) is moved to a suitable position, the inner tube (2211) and the outer tube (2212) can be connected and fixed by at least two bolts.

4. The support fixture for an automotive test bench air duct (1) according to claim 1, characterized in that: The outer tube (2212) is fixedly welded to the bottom plate (21), and an arc plate (3) is provided on the top of the inner tube (2211), which is connected to the inner tube (2211).

5. The support fixture for an automotive test bench air duct (1) according to claim 1, characterized in that: The angle adjustment block (232) is provided with a locking bolt (4), which is used to fix the guide rod inserted into the round hole (233).

6. The support fixture for an automotive test bench air duct (1) according to claim 1, characterized in that: The outer side of the air duct (1) is provided with an air duct (1) flange, and the air duct (1) flange is provided with a snap-fit ​​interface, which is used to connect with the quick connection device in the bench test.

7. The support fixture for an automotive test bench air duct (1) according to claim 1, characterized in that: Rubber shock-absorbing pads (6) are installed on the outer surface of the air duct (1) to reduce the impact of airflow vibration on the supporting structure.

8. The support fixture for an automotive test bench air duct (1) according to claim 1, characterized in that: The bottom of the base plate (21) is provided with a plurality of casters (7), and the bottom of the casters (7) is provided with an independent braking device.

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