Model support system for low altitude vehicle wind tunnel testing
By combining the support frame, turntable, drive mechanism and angle of attack adjustment mechanism, the problem of needing to disassemble the turntable in the existing technology for angle of attack adjustment mechanism is solved, realizing convenient maintenance and replacement of angle of attack adjustment mechanism, and improving the efficiency and accuracy of wind tunnel test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG AEROSPACE SCI & TECH RES INST (NANSHA)
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-14
AI Technical Summary
In existing wind tunnel tests, the maintenance and replacement of the angle of attack adjustment mechanism requires disassembling the turntable, which makes maintenance difficult.
Design a model support system for wind tunnel testing of low-altitude aircraft. Through the combination of support frame, turntable, drive mechanism and angle of attack adjustment mechanism, the turntable and angle of attack adjustment mechanism can be detachably connected, so that the angle of attack adjustment mechanism can be quickly maintained and replaced without disassembling the turntable.
It simplifies the maintenance and replacement process of the angle of attack adjustment mechanism, improves the efficiency and accuracy of wind tunnel testing, and reduces maintenance difficulty.
Smart Images
Figure CN224499887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind tunnel equipment technology, specifically to a model support system for wind tunnel testing of low-altitude aircraft. Background Technology
[0002] Wind tunnel experiments refer to an aerodynamic experimental method in which aircraft or other object models are placed in a wind tunnel to study gas flow and its interaction with the models in order to understand the aerodynamic characteristics of actual aircraft or other objects.
[0003] During wind tunnel testing, the low-altitude aircraft model to be tested is usually placed on the angle-of-attack adjustment mechanism of the model support system in the test section. The angle-of-attack adjustment mechanism can support the model and change the model's angle of attack, and then data is tested and recorded.
[0004] However, in relevant wind tunnel testing technologies, one end of the angle of attack adjustment mechanism is embedded in the turntable of the model support system, which requires the turntable to be disassembled when maintaining and replacing the angle of attack adjustment mechanism, making it difficult to maintain the angle of attack adjustment mechanism. Utility Model Content
[0005] To address the aforementioned deficiencies in the prior art, this utility model provides a model support system for wind tunnel testing of low-altitude aircraft, thereby resolving at least one of the aforementioned technical deficiencies in the prior art, enabling the maintenance and replacement of the angle-of-attack adjustment mechanism without disassembling the turntable, thus facilitating the maintenance of the angle-of-attack adjustment mechanism.
[0006] To achieve the objectives of this utility model, this utility model provides a model support system for wind tunnel testing of low-altitude aircraft, comprising:
[0007] Support frame;
[0008] The turntable is rotatably connected to the support frame;
[0009] A drive mechanism is provided on the support frame and drivenly connected to the turntable, and is adapted to drive the turntable to rotate;
[0010] An angle-of-attack adjustment mechanism is installed on the turntable and detachably connected to the turntable.
[0011] Preferably, the angle of attack adjustment mechanism is connected to the turntable by bolts.
[0012] Preferably, the support frame includes a vertical support frame, a horizontal support frame, and support ribs.
[0013] The horizontal support frame is mounted on top of the vertical support frame.
[0014] The first end of the support rib is fixed to the horizontal support frame, and the second end of the support rib is fixed to the vertical support frame.
[0015] The turntable is rotatably connected to the supporting crossbeam.
[0016] Preferably, the turntable includes a circular slide rail and a turntable body.
[0017] The circular slide rail is mounted on the supporting crossbeam, and the turntable body is rotatably connected to the circular slide rail.
[0018] The drive mechanism is connected to the turntable body.
[0019] Preferably, the turntable body is equipped with a worm gear.
[0020] The drive mechanism includes a drive motor and a worm gear.
[0021] The worm gear is matched with the worm wheel, and the drive motor drives the worm gear to rotate.
[0022] Preferably, it also includes a speed reducer.
[0023] The drive motor is connected to the reducer, and the reducer is connected to the worm gear.
[0024] Preferably, the drive motor, the reducer, and the worm gear are all mounted on the support frame.
[0025] Preferably, the turntable body is further provided with a circular steel plate.
[0026] The circular steel plate is placed over the worm gear, and the circular steel plate is coaxially arranged with the worm gear.
[0027] Preferably, the angle of attack adjustment mechanism includes a support rod and an arc-shaped guide rail.
[0028] The first end of the support rod is slidably connected to the arc-shaped guide rail, and the second end of the support rod is a free end.
[0029] The support rod passes through the turntable, with the second end of the support rod located above the turntable and the first end of the support rod located below the turntable. The arc-shaped guide rail is located below the turntable.
[0030] Preferably, the arc-shaped guide rail is detachably connected to the turntable.
[0031] The beneficial effects of this utility model are as follows: The model support system for wind tunnel testing of low-altitude aircraft provided by this utility model, by setting up a support frame, a turntable, a drive mechanism and an angle-of-attack adjustment mechanism, rotatably connects the turntable to the support frame, drives the turntable to rotate on the support frame, and passes through the turntable and is detachably connected to the turntable; so that when maintaining or replacing the angle-of-attack adjustment mechanism, the angle-of-attack adjustment mechanism can be pulled out from the turntable without disassembling the turntable, which is convenient for the maintenance of the angle-of-attack adjustment mechanism. Attached Figure Description
[0032] The above and other objects, features, and advantages of this utility model will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this application.
[0033] Figure 1 A schematic diagram of the overall structure of the model support system for wind tunnel testing of low-altitude aircraft provided in this embodiment of the present invention;
[0034] Figure 2 for Figure 1 A schematic diagram of its breakdown.
[0035] 100. Support frame; 110. Vertical support frame; 120. Horizontal support frame; 130. Support rib;
[0036] 200. Turntable; 210. Circular slide rail; 220. Turntable body; 221. Worm gear; 222. Circular steel plate;
[0037] 300. Drive mechanism; 310. Drive motor; 320. Worm gear; 330. Reducer;
[0038] 400. Angle of attack adjustment mechanism; 410. Support rod; 420. Arc-shaped guide rail. Detailed Implementation
[0039] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.
[0040] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.
[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this applies. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0042] The following is combined Figures 1 to 2 The embodiments of this utility model will be described below. It should be understood that the following description is merely an illustrative embodiment of this utility model and does not constitute any limitation on this utility model.
[0043] Combination Figures 1 to 2 The present invention provides a model support system for wind tunnel testing of low-altitude aircraft, which includes a support frame 100, a turntable 200, a drive mechanism 300 and an angle of attack adjustment mechanism 400.
[0044] The turntable 200 is rotatably connected to the support frame 100.
[0045] The drive mechanism 300 is mounted on the support frame 100 and is connected to the turntable 200 to drive the turntable 200 to rotate.
[0046] Angle of attack adjustment mechanism 400 is inserted through turntable 200 and is detachably connected to turntable 200, which facilitates the installation or removal of angle of attack adjustment mechanism 400.
[0047] It is understood that the model support system for low-altitude aircraft wind tunnel testing provided in the embodiments of this utility model, by setting up a support frame 100, a turntable 200, a drive mechanism 300 and an angle-of-attack adjustment mechanism 400, rotatably connects the turntable 200 to the support frame 100, drives the turntable 200 to rotate on the support frame 100 by the drive mechanism 300, and detachably connects the angle-of-attack adjustment mechanism 400 through the turntable 200; so that when maintaining or replacing the angle-of-attack adjustment mechanism 400, the angle-of-attack adjustment mechanism 400 can be pulled out from the turntable 200 without disassembling the turntable 200, which facilitates the maintenance of the angle-of-attack adjustment mechanism 400.
[0048] Combination Figure 1 and Figure 2 To further facilitate the installation and disassembly of the angle-of-attack adjustment mechanism 400 and the turntable 200, in some embodiments of this utility model, the angle-of-attack adjustment mechanism 400 and the turntable 200 are connected by bolts. Only by loosening the bolts connecting the angle-of-attack adjustment mechanism 400 and the turntable 200, the angle-of-attack adjustment mechanism 400 can be quickly repaired or replaced without removing the turntable 200.
[0049] Referring to the figures, in some embodiments of this utility model, the support frame 100 includes a vertical support frame 110, a horizontal support frame 120, and a support rib 130.
[0050] The horizontal support 120 is located at the top of the vertical support 110. Under the action of gravity, the vertical support 110 can more stably fix the horizontal support 120, thereby improving safety.
[0051] The first end of the support rib 130 is fixed to the support crossbeam 120, and the second end of the support rib 130 is fixed to the support vertical frame 110, making the structure of the support frame 100 more stable.
[0052] The turntable 200 is rotatably connected to the support frame 120, and the gravity on the turntable 200 can also be transmitted to the system support frame 100, making it more stable.
[0053] Specifically, in combination Figure 2 In some embodiments of this utility model, the turntable 200 includes a circular slide rail 210 and a turntable body 220.
[0054] The circular slide rail 210 is mounted on the support crossbeam 120, and the turntable body 220 is rotatably connected to the circular slide rail 210.
[0055] The drive mechanism 300 is connected to the turntable body 220. The drive mechanism 300 can drive the turntable body 220 to rotate on the support frame 120, making the rotation of the turntable 200 more stable.
[0056] In addition, combined Figure 1 In some embodiments of this utility model, the turntable body 220 is provided with a worm gear 221.
[0057] The drive mechanism 300 includes a drive motor 310 and a worm gear 320.
[0058] The worm 320 is matched with the worm wheel 221 to form a worm wheel and worm connection. The drive motor 310 drives the worm 320 to rotate, which in turn drives the worm wheel 221 to rotate, causing the turntable body 220 to rotate as well. This makes the transmission of the turntable 200 smoother and more self-locking, improving the accuracy of wind tunnel testing.
[0059] Referring to the figures, in some embodiments of this utility model, the model support system for low-altitude aircraft wind tunnel testing also includes a speed reducer 330.
[0060] The drive motor 310 is connected to the reducer 330, and the reducer 330 is connected to the worm gear 320; this allows the turntable 200 to have higher torque and its rotation speed to be controlled more precisely.
[0061] Of course, combined Figure 2In some embodiments of this utility model, the drive motor 310, the reducer 330 and the worm gear 320 are all mounted on the support frame 100, which improves the stability of the drive motion.
[0062] Referring to the figure, in order to improve the rigidity of the turntable 200 and extend its service life, in some embodiments of this utility model, the turntable body 220 is also provided with a circular steel plate 222.
[0063] A circular steel plate 222 is placed on the worm gear 221, and the circular steel plate 222 and the worm gear 221 are coaxially arranged.
[0064] Combination Figure 1 and Figure 2 In some embodiments of this utility model, the angle of attack adjustment mechanism 400 includes a support rod 410 and an arc-shaped guide rail 420.
[0065] The first end of the support rod 410 is slidably connected to the arc-shaped guide rail 420, and the second end of the support rod 410 is a free end, where the low-altitude aircraft model to be tested can be set.
[0066] The support rod 410 passes through the turntable 200. The second end of the support rod 410 is located above the turntable 200, and the first end of the support rod 410 is located below the turntable 200. The arc-shaped guide rail 420 is located below the turntable 200. The arc-shaped guide rail 420 can be fixed to the bottom of the turntable 200 with bolts. The arc-shaped guide rail 420 is detachably connected to the turntable 200.
[0067] When the angle of attack adjustment mechanism 400 needs maintenance or replacement, simply loosen the bolts connecting the arc guide rail 420 and the turntable 200 to pull the angle of attack adjustment mechanism 400 out of the turntable 200. There is no need to disassemble the turntable 200, which facilitates the maintenance of the angle of attack adjustment mechanism 400.
[0068] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0069] In the description of this specification, the use of terms such as "preferred embodiment," "another embodiment," "some embodiments," "other embodiments," or "specific example," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0070] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A model support system for wind tunnel testing of low-altitude aircraft, characterized in that, include: Support frame; The turntable is rotatably connected to the support frame; A drive mechanism is provided on the support frame and drivenly connected to the turntable, and is adapted to drive the turntable to rotate; An angle-of-attack adjustment mechanism is installed on the turntable and detachably connected to the turntable.
2. The model support system for wind tunnel testing of low-altitude aircraft as described in claim 1, characterized in that, The angle of attack adjustment mechanism is connected to the turntable by bolts.
3. The model support system for wind tunnel testing of low-altitude aircraft as described in claim 1, characterized in that, The support frame includes a vertical support frame, a horizontal support frame, and support ribs. The horizontal support frame is mounted on top of the vertical support frame. The first end of the support rib is fixed to the horizontal support frame, and the second end of the support rib is fixed to the vertical support frame. The turntable is rotatably connected to the supporting crossbeam.
4. The model support system for wind tunnel testing of low-altitude aircraft as described in claim 3, characterized in that, The turntable includes a circular slide rail and a turntable body. The circular slide rail is mounted on the supporting crossbeam, and the turntable body is rotatably connected to the circular slide rail. The drive mechanism is connected to the turntable body.
5. The model support system for wind tunnel testing of low-altitude aircraft as described in claim 4, characterized in that, The turntable body is equipped with a worm gear. The drive mechanism includes a drive motor and a worm gear. The worm gear is matched with the worm wheel, and the drive motor drives the worm gear to rotate.
6. The model support system for wind tunnel testing of low-altitude aircraft as described in claim 5, characterized in that, It also includes a speed reducer. The drive motor is connected to the reducer, and the reducer is connected to the worm gear.
7. The model support system for wind tunnel testing of low-altitude aircraft as described in claim 6, characterized in that, The drive motor, the reducer, and the worm gear are all mounted on the support frame.
8. The model support system for wind tunnel testing of low-altitude aircraft as described in claim 7, characterized in that, The turntable body is also equipped with a circular steel plate. The circular steel plate is placed over the worm gear, and the circular steel plate is coaxially arranged with the worm gear.
9. The model support system for wind tunnel testing of low-altitude aircraft as described in claim 8, characterized in that, The angle of attack adjustment mechanism includes a support rod and an arc-shaped guide rail. The first end of the support rod is slidably connected to the arc-shaped guide rail, and the second end of the support rod is a free end. The support rod passes through the turntable, with the second end of the support rod located above the turntable and the first end of the support rod located below the turntable. The arc-shaped guide rail is located below the turntable.
10. The model support system for wind tunnel testing of low-altitude aircraft as described in claim 9, characterized in that, The arc-shaped guide rail is detachably connected to the turntable.