Wind tunnel probe test coordinate frame device

Abstract

The utility model provides a wind tunnel probe test coordinate frame device, which belongs to the field of wind tunnel tests and comprises two fixing plates, an adjusting block is provided with a coordinate displacement assembly capable of flexibly changing the coordinate position of a wind tunnel probe, and the adjusting block is provided with an adjusting block. The coordinate displacement assembly is provided with a rotating assembly which is used for rotating the wind tunnel probe so that the wind tunnel probe can adapt to the measurement requirement of the non-direct wind direction. According to the utility model, through the coordinate displacement assembly and the rotating assembly, during use, the position of the probe adjusting block is adjusted through rotation of the second screw rod, so that the probe adjusting block slides and displaces in the second sliding adjusting block, thereby enlarging the detectable range of the wind tunnel probe; the probe can be flexibly positioned to any position of the wind tunnel by adjusting the probe, and the angle of the probe clamp can be adjusted through the hinge design, so that the angle of the wind tunnel probe is changed.

Description

Technical Field

[0001] This utility model relates to the field of wind tunnel testing, and more specifically, to a wind tunnel probe test coordinate frame device. Background Technology

[0002] Wind tunnel probe testing originated from the aerospace industry's need for precise flow field measurement. Since the 1970s, with the maturity of aerodynamic probe technology, it has been widely used in wind tunnel experiments. This technology collects parameters such as airflow pressure, velocity, and direction through the porous structure of the probe surface, providing key data for the aerodynamic performance analysis of models such as aircraft and automobiles. Its advantage lies in simulating real airflow environments under complex working conditions, helping engineers optimize designs, reduce wind resistance, and improve fuel efficiency and stability. In the automotive industry, probe testing has become a core means of evaluating the aerodynamic performance of vehicle bodies.

[0003] In traditional wind tunnel probe testing, coordinate frames are mostly fixed or finely adjustable structures, with weak multi-directional adjustment capabilities, incomplete data, and difficulty in accurately reproducing complex flow fields. At the same time, the fixed probe shape (facing forward or tilted) makes it impossible to quickly switch to adapt to different operating conditions. The single structure limits efficiency and adaptability, making it difficult to meet the requirements of multiple scenarios and high precision. To address this, a wind tunnel probe testing coordinate frame device is proposed. Utility Model Content

[0004] The purpose of this invention is to address the problems in traditional wind tunnel probe testing, where coordinate frames are mostly fixed or fine-tuning structures, resulting in weak multi-directional adjustment capabilities, incomplete data, and difficulty in accurately reproducing complex flow fields. At the same time, the probe shape is fixed (facing or tilted), making it impossible to quickly switch to adapt to different working conditions. The single structure limits efficiency and adaptability, making it difficult to meet the requirements of multiple scenarios and high precision.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] The present invention is as follows: a wind tunnel probe test coordinate frame device, comprising two fixed plates, wherein the fixed plates are provided with coordinate displacement components for flexibly changing the coordinate position of the wind tunnel probe, and the coordinate displacement components are provided with rotation components for rotating the wind tunnel probe so that the wind tunnel probe can adapt to the measurement requirements of non-direct wind direction.

[0007] The coordinate displacement assembly includes two first sliding adjustment blocks fixedly installed on opposite sides of two fixed plates. A first screw is rotatably connected inside the first sliding adjustment block. A second sliding adjustment block is threadedly connected to the periphery of the two first screws. A second screw is rotatably connected inside the second sliding adjustment block. A probe adjustment block is threadedly connected to the periphery of the second screw. A probe clamp is provided on one side of the probe adjustment block. A fastening threaded post is threadedly connected to the probe clamp. A fixed clamping plate is threadedly connected to the periphery of the fastening threaded post. Four sliding posts are welded to the top of the probe clamp.

[0008] As a preferred technical solution of this utility model, the rotating assembly includes two fixed blocks welded to both sides of the probe adjusting block, the probe clamp is hinged to one side of the two fixed blocks, and a clamping threaded post is threadedly connected to the fixed block. A clamping block is rotatably connected to the side of the clamping threaded post near the probe clamp.

[0009] As a preferred technical solution of this utility model, a U-shaped placement plate is snapped onto the top of the second sliding adjustment block. A temperature sensor is fixedly installed on one side of the U-shaped placement plate, a humidity sensor is fixedly installed on the side of the U-shaped placement plate near the temperature sensor, a pressure sensor is fixedly installed on the side of the U-shaped placement plate near the temperature sensor, and a display screen is fixedly installed on the side of the U-shaped placement plate near the temperature sensor.

[0010] As a preferred technical solution of this utility model, the probe clamp and the fixing clamp are both fixedly connected to the opposite side of an elastic buffer pad, and the two elastic buffer pads are arranged in a linear array with four wedge-shaped grooves on the opposite side.

[0011] As a preferred technical solution of this utility model, a first scale is fixedly installed on the top of the first sliding adjustment block, a second scale is fixedly installed on the top of the second sliding adjustment block, and an angle scale is fixedly installed on the fixed block.

[0012] As a preferred technical solution of this utility model, the top of the second sliding adjustment block is provided with a plurality of first positioning holes in a linear array, the interval between the first positioning holes is an integer, and the first positioning holes penetrate the probe adjustment block.

[0013] As a preferred technical solution of this utility model, the second sliding adjustment block has several windward blocks inside it, and the top of the second sliding adjustment block has several threaded holes in a linear array, the threaded holes penetrating the windward blocks.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By setting up a coordinate displacement component, during use, the wind tunnel probe is fixed between the probe clamp and the fixed clamp plate. The shape and specifications of the fixed plate are not fixed to match wind tunnels of different shapes. The two fixed plates can be extended and retracted by the first screw to adapt to wind tunnels of different sizes. The position of the probe adjustment block is adjusted by rotating the second screw, so that the probe adjustment block slides inside the second sliding adjustment block, thereby expanding the detectable range of the wind tunnel probe. By installing the fixed plate at different angles on the inner wall of the wind tunnel, combined with the second sliding adjustment block to dynamically adjust the probe in three-dimensional space, the probe can be flexibly positioned to any position in the wind tunnel, realizing accurate measurement in multiple angles and multiple areas, ensuring data integrity and spatial resolution, and providing reliable basis for experiments.

[0016] 2. By setting up a rotating component, the angle of the probe clip can be adjusted through the hinge design during use, thereby changing the angle of the wind tunnel probe. By adjusting the probe pointing in real time, dynamic characteristics such as deflection, separation and vortex trajectory of airflow after passing through the model can be efficiently captured. By adjusting the clamping threaded column, the clamping block can clamp and limit the probe clip to prevent displacement that would lead to inaccurate data. Attached Figure Description

[0017] Figure 1 A schematic diagram of the wind tunnel probe test coordinate frame device provided by this utility model;

[0018] Figure 2 Front view of the wind tunnel probe test coordinate frame device provided by this utility model;

[0019] Figure 3 The wind tunnel probe test coordinate frame device provided by this utility model Figure 2 A schematic diagram of the three-dimensional cross-sectional structure at point AA;

[0020] Figure 4 A schematic diagram of the temperature sensor of the wind tunnel probe test coordinate frame device provided by this utility model;

[0021] Figure 5 A schematic diagram of the structure of the first scale of the wind tunnel probe test coordinate frame device provided by this utility model;

[0022] Figure 6 The wind tunnel probe test coordinate frame device provided by this utility model Figure 5 Enlarged view of point A in the middle.

[0023] The diagram shows: 1. Fixed plate; 2. Coordinate displacement component; 3. Rotation component; 201. First sliding adjustment block; 202. First screw; 203. Second sliding adjustment block; 204. Second screw; 205. Probe adjustment block; 206. Probe clamp; 207. Fastening threaded post; 208. Fixed clamping plate; 209. Sliding post; 301. Fixed block; 302. Clamping threaded post; 303. Clamping block; 4. U-shaped placement plate; 5. Temperature sensor; 6. Humidity sensor; 7. Barometric pressure sensor; 8. Display screen; 9. Elastic buffer pad; 10. Wedge groove; 11. First scale; 12. Second scale; 13. Angle scale; 14. First positioning hole; 15. Windward block; 16. Threaded hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] like Figure 1 As shown, this embodiment proposes a wind tunnel probe test coordinate frame device, including two fixed plates 1. The fixed plates 1 are provided with a coordinate displacement component 2 for flexibly changing the coordinate position of the wind tunnel probe. The coordinate displacement component 2 is provided with a rotation component 3 for rotating the wind tunnel probe so that the wind tunnel probe can adapt to the measurement requirements of non-direct wind direction.

[0029] like Figure 3As shown, the coordinate displacement assembly 2 includes two first sliding adjustment blocks 201 fixedly installed on opposite sides of two fixed plates 1. A first screw 202 is rotatably connected inside the first sliding adjustment block 201. A second sliding adjustment block 203 is threadedly connected to the circumference of the two first screws 202. The second sliding adjustment block 203 is slidably connected inside the first sliding adjustment block 201 and is adjusted for extension and retraction by the first screws 202, making the device suitable for wind tunnels of different sizes. A second screw 204 is rotatably connected inside the second sliding adjustment block 203. A probe adjustment block 205 is threadedly connected to the circumference of the second screw 204. The probe adjustment block 205 is slidably connected inside the second sliding adjustment block 203 and is displaced by the second screw 204, thereby displacing the wind tunnel probe and increasing its detection range. A probe clamp 206 is provided on one side of the probe adjustment block 205. A fastening threaded post 207 is threadedly connected to the probe clamp 206. A fixing clamp plate 208 is threadedly connected to the circumference of the fastening threaded post 207. Tightening the fastening threaded post 207... 07 allows the probe clamp 206 to work with the fixing plate 208 to fix the wind tunnel probe placed in the middle. The top of the probe clamp 206 is welded with four sliding posts 209, which are used to enhance the stability when the probe clamp 206 and the fixing plate 208 are clamped. In use, the wind tunnel probe is fixed between the probe clamp 206 and the fixing plate 208. The shape and specifications of the fixing plate 1 are not fixed to match wind tunnels of different shapes. The two fixing plates 1 can be extended and retracted by the first screw 202 to adapt to wind tunnels of different sizes. The position of the probe adjusting block 205 is adjusted by rotating the second screw 204, so that the probe adjusting block 205 slides inside the second sliding adjusting block 203, thereby expanding the detectable range of the wind tunnel probe. By installing the fixing plate 1 at different angles on the inner wall of the wind tunnel, and combining it with the second sliding adjusting block 203 to dynamically adjust the probe in three-dimensional space, the probe can be flexibly positioned to any position in the wind tunnel, realizing accurate measurement in multiple angles and multiple areas, ensuring data integrity and spatial resolution, and providing reliable basis for the experiment.

[0030] like Figure 6As shown, the rotating assembly 3 includes two fixed blocks 301 welded to both sides of the probe adjusting block 205. The probe clamp 206 is hinged to one side of the two fixed blocks 301. A clamping threaded post 302 is threadedly connected to the fixed block 301. A clamping block 303 is rotatably connected to the side of the clamping threaded post 302 near the probe clamp 206. The clamping threaded post 302 and the clamping block 303 adopt a composite design of "rotational connection + snap-fit". The clamping threaded post 302 can rotate freely, while the clamping block 303 restricts its rotational freedom through the snap-fit ​​structure, allowing rotation only along the clamping threaded post. The axial horizontal movement of the 302 ensures that the clamping block 303 only makes linear displacement when the clamping threaded column 302 is tightened, avoiding rotational offset and achieving precise positioning and stable clamping. In use, the angle of the probe clamp 206 can be adjusted through the hinge design, thereby changing the angle of the wind tunnel probe. By adjusting the probe pointing in real time, dynamic characteristics such as deflection, separation and vortex trajectory of airflow after passing through the model can be efficiently captured. By adjusting the clamping threaded column 302, the clamping block 303 can clamp and limit the probe clamp 206 to prevent displacement that would lead to inaccurate data.

[0031] like Figure 4 As shown, a U-shaped mounting plate 4 is snapped onto the top of the second sliding adjustment block 203. A temperature sensor 5 is fixedly installed on one side of the U-shaped mounting plate 4, a humidity sensor 6 is fixedly installed on the side of the U-shaped mounting plate 4 near the temperature sensor 5, a pressure sensor 7 is fixedly installed on the side of the U-shaped mounting plate 4 near the temperature sensor 5, and a display screen 8 is fixedly installed on the side of the U-shaped mounting plate 4 near the temperature sensor 5. During use, the temperature, humidity, and pressure parameters inside the wind tunnel are monitored in real time by the temperature sensor 5, humidity sensor 6, and pressure sensor 7, and the data is displayed on the display screen 8. Based on the data, the staff can take compensation measures. By monitoring the environmental parameters, the interference of environmental factors on the measurement results can be understood, thereby improving the accuracy and reliability of the measurement. After the monitoring is completed, the snapped U-shaped mounting plate 4 can be removed to prevent damage to the temperature sensor 5, humidity sensor 6, and pressure sensor 7 during the test.

[0032] like Figure 6 As shown, elastic buffer pads 9 are fixedly connected to the opposite sides of the probe clamp 206 and the fixed clamping plate 208. The opposite sides of the two elastic buffer pads 9 are provided with four wedge-shaped grooves 10 in a linear array. In use, the elastic buffer pads 9 can prevent the wind tunnel probe from being damaged by excessive clamping force when clamping it. The wedge-shaped grooves 10 can limit the position of the wind tunnel probe to a certain extent to ensure the accuracy of the test.

[0033] like Figure 5 and Figure 6As shown, a first scale 11 is fixedly installed on the top of the first sliding adjustment block 201, a second scale 12 is fixedly installed on the top of the second sliding adjustment block 203, and an angle scale 13 is fixedly installed on the fixed block 301. In use, the first scale 11 and the second scale 12 can be used to easily understand the position of the probe, and the angle scale 13 can be used to help the staff understand the angle of the wind tunnel probe, making it easier for the staff to change its position and perform other operations.

[0034] like Figure 5 As shown, the top of the second sliding adjustment block 203 has a plurality of first positioning holes 14 arranged in a linear array. The intervals of the first positioning holes 14 are integers. The first positioning holes 14 pass through the probe adjustment block 205. In use, the second sliding adjustment block 203 and the probe adjustment block 205 are fixed by means of parts such as positioning threaded posts through the first positioning holes 14. The first positioning holes 14, which are evenly spaced and distributed in integers, provide a standardized scale for probe adjustment, which makes it easy to quickly determine the adjustment interval. At the same time, the first positioning holes 14 with integer intervals are convenient for recording experimental parameters and reducing human error.

[0035] like Figure 6 As shown, the second sliding adjustment block 203 has several windward blocks 15 inside. The top of the second sliding adjustment block 203 has several threaded holes 16 arranged in a linear array. The threaded holes 16 pass through the windward blocks 15. In use, the windward blocks 15 and the second sliding adjustment block 203 are fixed by using parts such as positioning threaded columns through the threaded holes 16. The surface of the windward block 15 facing the wind direction is inclined, which can reduce wind resistance, reduce the stress on the device, and extend the life of the device.

[0036] Specifically, in use, this wind tunnel probe test coordinate frame device involves fixing the wind tunnel probe between the probe clamp 206 and the fixing plate 208. The shape and specifications of the fixing plate 1 are not fixed to match wind tunnels of different shapes. The first screw 202 can extend and retract the two fixing plates 1 to accommodate wind tunnels of different sizes. The second screw 204 rotates to adjust the position of the probe adjusting block 205, causing it to slide within the second sliding adjusting block 203, thereby expanding the detectable range of the wind tunnel probe. By installing the fixing plate 1 at different angles on the inner wall of the wind tunnel, combined with the second sliding adjusting block 203 to dynamically adjust the probe in three-dimensional space, the probe can be flexibly positioned at any location in the wind tunnel, achieving accurate measurements from multiple angles and in multiple areas, ensuring data integrity and spatial resolution, and providing reliable evidence for experiments (e.g., ...). Figure 3As shown), the hinged design allows for angle adjustment of the probe clamp 206, thereby changing the angle of the wind tunnel probe. By adjusting the probe's direction in real time, dynamic characteristics such as deflection, separation, and vortex trajectory of airflow after passing through the model can be efficiently captured. Adjusting the clamping threaded post 302 allows the clamping block 303 to clamp and limit the probe clamp 206, preventing displacement that could lead to inaccurate data (e.g., ...). Figure 6 As shown in the diagram, temperature sensor 5, humidity sensor 6, and air pressure sensor 7 monitor environmental parameters such as temperature, humidity, and air pressure inside the wind tunnel in real time, and display the data on the display screen 8. Based on the data, staff can implement compensatory measures. By monitoring environmental parameters, the interference of environmental factors on the measurement results can be understood, improving the accuracy and reliability of the measurements (e.g., ...). Figure 4 (As shown).

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A wind tunnel probe test coordinate frame apparatus comprising two fixed plates (1), characterized in that, The fixed plate (1) is provided with a coordinate displacement component (2) for flexibly changing the coordinate position of the wind tunnel probe. The coordinate displacement component (2) is provided with a rotation component (3) for rotating the wind tunnel probe so that the wind tunnel probe can adapt to the measurement requirements of non-direct wind direction. The coordinate displacement assembly (2) includes two first sliding adjustment blocks (201) fixedly installed on opposite sides of two fixed plates (1). The first sliding adjustment block (201) is rotatably connected to a first screw (202). The two first screws (202) are threadedly connected to a second sliding adjustment block (203) on their periphery. The second sliding adjustment block (203) is rotatably connected to a second screw (204). The second screw (204) is threadedly connected to a probe adjustment block (205) on its periphery. A probe clamp (206) is provided on one side of the probe adjustment block (205). A fastening threaded post (207) is threadedly connected to the probe clamp (206). A fixed clamp plate (208) is threadedly connected to the periphery of the fastening threaded post (207). Four sliding posts (209) are welded to the top of the probe clamp (206).

2. A wind tunnel probe test coordinate frame apparatus as in claim 1, wherein, The rotating assembly (3) includes two fixed blocks (301) welded on both sides of the probe adjusting block (205). The probe clamp (206) is hinged to the opposite side of the two fixed blocks (301). A clamping threaded post (302) is threadedly connected to the fixed block (301). A clamping block (303) is rotatably connected to the side of the clamping threaded post (302) near the probe clamp (206).

3. A wind tunnel probe test coordinate frame apparatus as in claim 1, wherein, The top of the second sliding adjustment block (203) is snapped with a U-shaped placement plate (4). A temperature sensor (5) is fixedly installed on one side of the U-shaped placement plate (4). A humidity sensor (6) is fixedly installed on the side of the U-shaped placement plate (4) near the temperature sensor (5). A barometric pressure sensor (7) is fixedly installed on the side of the U-shaped placement plate (4) near the temperature sensor (5). A display screen (8) is fixedly installed on the side of the U-shaped placement plate (4) near the temperature sensor (5).

4. A wind tunnel probe test coordinate frame apparatus as in claim 1, wherein, The probe clip (206) and the fixing plate (208) are both fixedly connected to elastic buffer pads (9) on opposite sides, and the two elastic buffer pads (9) are arranged in a linear array with four wedge-shaped grooves (10) on opposite sides.

5. A wind tunnel probe test coordinate frame apparatus as defined in claim 2, wherein, A first scale (11) is fixedly installed on the top of the first sliding adjustment block (201), a second scale (12) is fixedly installed on the top of the second sliding adjustment block (203), and an angle scale (13) is fixedly installed on the fixed block (301).

6. A wind tunnel probe test coordinate frame apparatus as in claim 1, wherein, The top of the second sliding adjustment block (203) is provided with a plurality of first positioning holes (14) in a linear array. The interval between the first positioning holes (14) is an integer. The first positioning holes (14) penetrate the probe adjustment block (205).

7. A wind tunnel probe test coordinate frame apparatus as in claim 1, wherein, The second sliding adjusting block (203) is clamped with several windward blocks (15) inside, and the top of the second sliding adjusting block (203) is linearly arrayed with several threaded holes (16) which penetrate the windward blocks (15).

Images