Release device for wind tunnel test

Abstract

The invention discloses a releasing device for a wind tunnel test. The releasing device comprises a length driving assembly and an angle driving assembly, the length driving assembly comprises a length driving motor, an extension rod and a telescopic rod axially connected with the length driving motor. The end, away from the length driving motor, of the telescopic rod is connected with the extension rod. The angle driving assembly comprises an angle driving motor, a switching disc and a driving block, the angle driving motor is rotationally connected with the switching disc, the switching disc and the angle driving motor are arranged on the telescopic rod in a sleeving mode, the switching disc is arranged between the angle driving motor and the length driving motor, and the driving block is arranged between the switching disc and the length driving motor. And the driving block is detachably connected with the extension rod. The wind tunnel test release device solves the problem that an existing wind tunnel test release device cannot rotate and move a tested object.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind tunnel test devices, and particularly relates to a wind tunnel test release device. Background Art

[0002] A wind tunnel test refers to a test method in which an aircraft or other object model is placed in a wind tunnel to study the interaction between the airflow and the model in order to understand the aerodynamic characteristics of the actual aircraft or other object. A wind tunnel test laboratory mainly consists of a wind tunnel, a drive system, and a measurement and control system. The wind tunnel is the main part of the test, used to simulate the airflow environment; the drive system provides a stable airflow; the measurement and control system is used to collect and analyze test data. Among them, the test article is installed in the test section of the wind tunnel. The test section is a square tube structure, and its side walls are provided with observation ports and test article installation positions. The upper and lower walls are flat structures with long strip-shaped gaps evenly distributed axially. Generally, in a wind tunnel test, it is not necessary for individual components of the test article to move, rotate, or be fixed in a certain position. Only the overall rotation of the test article is required, and this rotation function can be achieved through the rotatable installation positions on the side walls of the test section. However, with the continuous development of aviation technology, some wind tunnel tests require individual components of the test article to move, rotate, or be fixed in a certain position, which is difficult to achieve only by the rotatable installation positions on the side walls of the test section. The existing wind tunnel test equipment lacks a device that can perform various actions inside the wind tunnel and cannot meet the requirements of current wind tunnel tests. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to provide a wind tunnel test release device, which solves the problem that the existing wind tunnel test release device cannot rotate and move the test article.

[0004] The technical solution of the present invention is: The present invention provides a wind tunnel test release device, including: a length drive assembly and an angle drive assembly;

[0005] The length drive assembly includes a length drive motor, an extension rod, and a telescopic rod axially connected to the length drive motor. One end of the telescopic rod away from the length drive motor is connected to the extension rod;

[0006] The angle drive assembly includes an angle drive motor, a transfer disk, and a drive block. The angle drive motor is rotationally connected to the transfer disk. The transfer disk and the angle drive motor are both sleeved on the telescopic rod. The transfer disk is arranged between the angle drive motor and the length drive motor, and the drive block is detachably connected to the extension rod.

[0007] Further, an angle adjustment knob and a power socket are provided on the angle driving motor. Both the angle adjustment knob and the power socket are provided on the side wall of the angle driving motor, and the angle adjustment knob is rotationally connected to the gear of the angle driving motor.

[0008] Further, a first through hole is provided on the central axis of the adapter plate, and a second through hole is provided on the central axis of the angle driving motor. The telescopic rod passes through the first through hole and the second through hole. The adapter plate is rotationally connected to the angle driving motor through the gear inside the angle driving motor, and the adapter plate is rotationally connected to the telescopic rod.

[0009] Further, the adapter plate includes a first adapter plate and a second adapter plate, and the first adapter plate and the second adapter plate are locked tightly by bolts.

[0010] Further, the wind tunnel test release device further includes an installation assembly. The installation assembly includes an installation bracket and a fixing plate. The installation bracket is provided at one end of the angle driving motor away from the adapter plate. The installation bracket is detachably connected to the angle driving motor. The fixing plate is provided at one end of the installation bracket away from the angle driving motor. The fixing plate is detachably connected to the installation bracket.

[0011] Further, the installation assembly further includes a connecting block, and the connecting block is detachably connected to the extension rod and the driving block respectively.

[0012] Further, the installation bracket includes a bottom plate, a top plate, a first side plate and a second side plate. The bottom plate is provided at one end close to the angle driving motor. The top plate is provided on the opposite side of the bottom plate. The first side plate and the second side plate are symmetrically arranged on both sides of the telescopic rod. Both the first side plate and the second side plate are perpendicular to the bottom plate, and the top plate is parallel to the bottom plate.

[0013] Further, a plurality of groups of installation holes are provided on the bottom plate, and the first side plate and the second side plate are detachably connected to the bottom plate through the installation holes.

[0014] Further, a plurality of groups of adjustment holes are further provided on the fixing plate. The fixing plate is detachably connected to the top plate through the adjustment holes. The fixing plate is provided on the side edge of the top plate and is perpendicular to the top plate.

[0015] Further, the telescopic rod includes an outer tube and an inner tube. The extension rod is fixedly connected to the inner tube, and the length driving motor is rotationally connected to the inner tube to adjust the length of the telescopic rod.

[0016] The beneficial effects of the present invention are as follows: By providing a length driving component and an angle driving component, the length driving component can achieve the linear movement of the parts of the test piece through the axial movement of the telescopic rod, meeting the adjustment requirements for different positions. The angle driving component can achieve the rotational adjustment of the test piece through the cooperation of the angle driving motor and the adapter plate, thus meeting the requirements for complex attitude adjustment. The device combines linear motion and rotational motion, providing the adjustment ability of multiple degrees of freedom, and can adapt to the requirements for multi-directional adjustment of parts in the wind tunnel test. The detachable connection between the extension rod and the driving block facilitates quick installation, replacement, and maintenance, improving the flexibility and usage efficiency of the device. By sleeving the angle driving motor and the adapter plate on the telescopic rod, the spatial layout is optimized, making it suitable for use in the limited space of the wind tunnel test. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 Structural schematic diagram of a wind tunnel test release device provided by an embodiment of the present application;

[0019] Figure 2 is Figure 1 structural schematic diagram of the angle driving component in;

[0020] Figure 3 is Figure 1 structural schematic diagram of the mounting component in.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1 - length driving motor, 2 - angle driving motor, 3 - adapter plate, 4 - mounting bracket, 5 - telescopic rod, 6 - extension rod, 7 - connecting block, 8 - driving block;

[0023] 21 - adjustment knob, 22 - power socket, 31 - first adapter plate, 32 - second adapter plate, 41 - mounting plate, 42 - top plate, 43 - first side plate, 44 - second side plate, 45 - bottom plate, 411 - adjustment hole, 451 - mounting hole. Detailed Embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0025] In the present invention, terms such as "first" and "second" are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0026] The implementation of the present invention will be described in detail below in conjunction with specific drawings:

[0027] Figure 1Schematic structural diagram of a wind tunnel test release device provided by an embodiment of the present application; the wind tunnel test release device includes a length driving component and an angle driving component. The length driving component includes a length driving motor 1, a telescopic rod 5, and an extension rod 6. The length driving motor 1 controls the length of the telescopic rod 5. One end of the telescopic rod is axially connected to the length driving motor 1, and the other end is connected to the extension rod 5. The telescopic rod 5 includes an outer tube and an inner tube. The length driving motor 1 is rotationally connected to the inner tube to adjust the length of the telescopic rod 5. After the length driving motor 1 is started, its output shaft rotates to drive the screw to rotate, and transmits the driving force to the inner tube of the telescopic rod 5 connected thereto. The other end of the inner tube is connected to the extension rod 6. The outer tube of the telescopic rod 5 is connected to the housing of the length driving motor 1. The telescopic rod 5 is composed of an inner tube and an outer tube sleeved together. The inner tube can slide axially inside the outer tube. When the motor drives the inner tube to move axially, the inner tube produces an elongation or shortening action relative to the outer tube, thereby changing the length of the entire telescopic rod 5. The length driving motor 1 is usually used in combination with a sensor and a feedback system, and can precisely control the displacement of the inner tube, realizing precise adjustment of the length of the telescopic rod 5. After reaching the required length, the motor stops driving, and at the same time, the current length of the telescopic rod is fixed through a built-in mechanical locking device or the motor braking function to ensure the stability of the device. The length driving component realizes precise control. In combination with the sensor and the feedback system, the length driving motor 1 can precisely control the displacement of the inner tube of the telescopic rod, ensuring high-precision adjustment of the length of the telescopic rod and meeting the strict requirements of the wind tunnel test for position adjustment. Flexible adjustment, the sleeved design of the inner tube and the outer tube enables the telescopic rod 5 to freely expand and contract within a large range, adapting to the needs of different experimental scenarios and the sizes of test objects, and improving the applicability of the device. Efficient locking and stability, through a built-in mechanical locking device or the motor braking function, after reaching the required length, the current length of the telescopic rod can be reliably fixed, ensuring the operating stability in the high-airflow environment of the wind tunnel and avoiding length changes caused by vibration or external force. At the same time, the structure is compact and suitable for limited space. The telescopic rod consists of an axial sliding mechanism of an inner tube and an outer tube, occupying a small space but having a large movement range, which is very suitable for the limited experimental space conditions in the wind tunnel test. Automatic operation, the automatic adjustment function of the length driving motor 1 greatly reduces the need for manual intervention and improves the operation efficiency, especially in tests that require frequent length adjustment. Smooth power transmission, the motor transmits the driving force to the inner tube smoothly through the screw, ensuring the smoothness of the length adjustment process and avoiding vibration or errors caused by uneven power. Adapt to a variety of test requirements, this component can support a variety of test scenarios, including displacement adjustment and attitude optimization of parts, enabling the wind tunnel test release device to more widely adapt to complex experimental needs.

[0028] Figure 2 For Figure 1Schematic structural diagram of the angular drive component. The angular drive component includes an angular drive motor 2, a transfer disk 3, and a drive block 8. Both the transfer disk 3 and the angular drive motor 2 are sleeved on the telescopic rod 5. A first through hole and a second through hole are respectively provided on the central axes of the transfer disk 3 and the angular drive motor 2. The telescopic rod 5 passes through the first through hole and the second through hole and is connected to the length drive motor 1. The transfer disk 3 is respectively arranged between the angular drive motor 2 and the length drive motor 1. The transfer disk 3 includes a first transfer disk 31 and a second transfer disk 32, and the first transfer disk 31 and the second transfer disk 32 are detachably connected by bolts. The drive block 8 is arranged at one end of the extension rod 6 away from the telescopic rod 5, and the drive block 8 is detachably connected to the extension rod 6 through a connecting block 7. The structure of the drive block 8 can be changed according to factors such as the size, type, and structure of the test specimen. The angular drive motor 2 drives the transfer disk 3 to rotate through rotation, thereby driving the telescopic rod 5 to rotate. The telescopic rod 5 is connected to the extension rod to drive the extension rod 6 and the drive block 8 on the extension rod 6 to rotate. An adjustment knob 21 and a power socket 22 are also provided on the angular drive motor 2. The angle adjustment knob 21 is rotationally connected to the gear of the angular drive motor 2, and the adjustment knob 21 manually adjusts the angle of the test object. By adopting the angular adjustment component, high-precision angular adjustment is achieved. The angular drive motor 2 drives the transfer disk 3 to rotate through rotation, so that the telescopic rod 5 and the connected extension rod 6 and drive block 8 complete synchronous rotation, and the angle of the test object can be accurately adjusted to meet the strict requirements of the wind tunnel test for angular accuracy. At the same time, it has diverse adaptability. The structure of the drive block 8 can be changed according to the size, type, and structure of the test specimen, increasing the applicable range of the device and adapting to the requirements of different wind tunnel test scenarios. Convenient manual adjustment. The angle adjustment knob 21 is connected to the gear of the angular drive motor 2, enabling users to manually adjust the angle, providing a fast and flexible adjustment method, which is convenient for fine-tuning in the test preparation stage. The modular design is convenient for maintenance and replacement. The transfer disk 3 is composed of a first transfer disk 31 and a second transfer disk 32 and is detachably connected by bolts, facilitating the disassembly, assembly, maintenance, and component replacement of the equipment, and improving the usability. Stable and reliable power transmission. The central axes of the transfer disk 3 and the telescopic rod 5 are consistent, ensuring smooth power transmission, avoiding mechanical vibration or errors caused by eccentric rotation, and enhancing the system stability and the reliability of test data. Compact structure and space optimization. The transfer disk 3 is sleeved on the telescopic rod 5 and is arranged between the angular drive motor 2 and the length drive motor 1, effectively utilizing the limited space, and at the same time ensuring that the functions of each component are independent and do not interfere with each other, meeting the requirements of the limited space in the wind tunnel test. Electric and manual dual modes. The electric adjustment function is provided through the power socket 22, and at the same time, the manual knob adjustment is taken into account, meeting the operation requirements in different scenarios and enhancing the operation flexibility and reliability of the equipment.

[0029] Figure 2 For Figure 1Schematic structural diagram of the installation component. The wind tunnel test release device further includes an installation component 4, which includes a fixing plate 41, a top plate 42, a first side plate 43, a second side plate 44, and a bottom plate 45. The bottom plate 45 is provided at one end close to the angle driving motor 2, the top plate 42 is provided on the opposite side of the bottom plate 45, the first side plate 43 and the second side plate 44 are symmetrically arranged on both sides of the telescopic rod 5, both the first side plate 43 and the second side plate 44 are perpendicular to the bottom plate 45, the top plate 41 is parallel to the bottom plate 45, the fixing plate 41 is detachably connected to the top plate 42. The fixing plate 41 is composed of two groups of symmetrically arranged plates. One end of the fixing plate 41 is connected to the side wall of the top plate 42, and the other end faces the driving block 8. A number of groups of adjustment holes 411 are provided on the fixing plate 41 to adjust the position of the fixing plate 41 according to the height of the test object. A number of groups of mounting holes 451 are provided on the bottom plate 45, and the first side plate 43 and the second side plate 44 are detachably connected to the bottom plate 45 through the mounting holes 451. This installation component has multi-directional stability through modular and adjustable design: The installation component consists of a top plate, a bottom plate, a first side plate, and a second side plate, forming a stable frame structure, providing multi-directional support and fixation for each part of the release device, enhancing the overall stability, especially performing well in the high-airflow environment of the wind tunnel. Height adjustment flexibility: The adjustment holes 411 on the fixing plate 41 allow the position of the fixing plate to be adjusted according to the height of the test object, enabling the release device to adapt to test objects of different sizes or shapes, and improving the applicable range. Modular connection facilitates maintenance: The detachable connection design of the fixing plate 41 and the top plate 42, and the first side plate 43 and the bottom plate 45 facilitates the rapid assembly, disassembly, and maintenance of the equipment, saving test preparation time. Adapt to various installation scenarios: The mounting holes 451 on the bottom plate 45 allow flexible connection with different test platforms, supporting various installation methods, and enhancing the versatility of the equipment. The structure is compact and stable: The symmetrically arranged fixing plate 41 and side plate structures are evenly distributed, effectively balancing the forces in all directions, ensuring that the release device does not shift or vibrate during operation, improving the test accuracy and safety. The design of the fixing plate 41 facing the driving block 8 provides clear support for the installation and operation of the driving block, while further fixing the release device, improving the stability and efficiency during the test.

[0030] Two bracket fixing plates 41 are fixed on the rib plates of the top plate of the wind tunnel test section using bolts. Rotating the bolts can adjust the distance between the two bolt heads, and there is no need to weld, drill, or cut on the wind tunnel test section, enabling this wind tunnel test release device to be applicable to various different wind tunnel test sections. The product angle driving structure for the wind tunnel test release device extends into the wind tunnel to perform corresponding actions. This structure of the wind tunnel test release device has the characteristics of strong adaptability and convenient disassembly and assembly.

[0031] The method for measuring a test object using a wind tunnel test release device mainly includes the following steps:

[0032] 1. Preparation work

[0033] Device Installation: Install the wind tunnel test release device at a fixed position in the wind tunnel test section to ensure the stable connection of the installation components and each drive component. Fixing the Test Object: According to the size, shape, and weight of the test object, select a suitable structure of the drive block 8, and fix the test object on the release device through the fixing block. Initial Adjustment: Use the length drive component and the angle drive component to adjust the position and attitude of the test object to make it reach the initial position and angle of the test.

[0034] 2. Parameter Adjustment and Calibration

[0035] Length Adjustment: Start the length drive motor 1, and move the test object to the predetermined position by adjusting the length of the telescopic rod. Use the built-in sensor and feedback system to verify the accuracy of the position. Angle Adjustment: Start the angle drive motor 2, and adjust the rotation angle of the test object through the adapter plate to ensure that its attitude meets the test requirements. Manual fine-tuning can be performed through the angle adjustment knob if necessary.

[0036] 3. Wind Tunnel Test Run

[0037] Start the Wind Tunnel Airflow: Set the air velocity, pressure, and other environmental parameters according to the test requirements to ensure that the test conditions meet the preset requirements. Release or Action Simulation: According to the test requirements, control the movement or rotation of the test object through the release device to simulate specific working states or dynamic behaviors. Data Acquisition: Use the sensor array in the wind tunnel to measure data such as the force, pressure distribution, and vibration characteristics of the test object under the action of the airflow, and record the movement trajectory and attitude changes of the test object at the same time.

[0038] 4. Data Processing and Analysis

[0039] Experimental Data Verification: Combine the sensor feedback of the release device to calibrate the data acquisition equipment to ensure the accuracy of the data. Result Analysis: Analyze the collected data of aerodynamic parameters, mechanical characteristics, and dynamic behaviors to evaluate the performance, stability, and adaptability of the test object.

[0040] 5. Result Adjustment and Test Repeat

[0041] Adjust the Release Device: According to the analysis results, adjust the attitude, position, or test conditions of the test object. Repeat the Test: Conduct the wind tunnel test again to verify the adjusted results and ensure the reliability and integrity of the data.

[0042] Obviously, the above are only the preferred embodiments of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments here, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

[0043] Note that in the description of this specification, the descriptions referring to the terms "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

Claims

1. A wind tunnel test release device, characterized in that, Comprising: A length driving component and an angle driving component; The length driving component includes a length driving motor, an extension rod, and a telescopic rod axially connected to the length driving motor. One end of the telescopic rod away from the length driving motor is connected to the extension rod; The angle driving component includes an angle driving motor, a transfer disk, and a driving block. The angle driving motor is rotatably connected to the transfer disk. The transfer disk and the angle driving motor are both sleeved on the telescopic rod. The transfer disk is arranged between the angle driving motor and the length driving motor. The driving block is detachably connected to the extension rod.

2. The wind tunnel test release device according to claim 1, characterized in that, An angle adjustment knob and a power socket are provided on the angle driving motor. Both the angle adjustment knob and the power socket are arranged on the side wall of the angle driving motor. The angle adjustment knob is rotatably connected to the gear of the angle driving motor.

3. The wind tunnel test release device according to claim 2, characterized in that, A first through hole is provided on the central axis of the transfer disk, and a second through hole is provided on the central axis of the angle driving motor. The telescopic rod passes through the first through hole and the second through hole. The transfer disk is rotatably connected to the angle driving motor through the gear inside the angle driving motor. The transfer disk is rotatably connected to the telescopic rod.

4. The wind tunnel test release device according to claim 3, characterized in that, The transfer disk includes a first transfer disk and a second transfer disk. The first transfer disk and the second transfer disk are locked tightly by bolts.

5. The wind tunnel test release device according to claim 3, characterized in that, The wind tunnel test release device further includes an installation component. The installation component includes an installation bracket and a fixing plate. The installation bracket is arranged at one end of the angle driving motor away from the transfer disk. The installation bracket is detachably connected to the angle driving motor. The fixing plate is arranged at one end of the installation bracket away from the angle driving motor. The fixing plate is detachably connected to the installation bracket.

6. The wind tunnel test release device according to claim 5, characterized in that, The installation component further includes a connecting block. The connecting block is detachably connected to the extension rod and the driving block respectively.

7. The wind tunnel test release device according to claim 5, characterized in that, The installation bracket includes a bottom plate, a top plate, a first side plate, and a second side plate. The bottom plate is arranged at one end close to the angle driving motor. The top plate is arranged on the opposite side of the bottom plate. The first side plate and the second side plate are symmetrically arranged on both sides of the telescopic rod. Both the first side plate and the second side plate are perpendicular to the bottom plate. The top plate is parallel to the bottom plate.

8. The wind tunnel test release device according to claim 7, characterized in that, A number of groups of installation holes are provided on the bottom plate. The first side plate and the second side plate are detachably connected to the bottom plate through the installation holes.

9. The wind tunnel test release device according to claim 8, wherein, A number of groups of adjustment holes are further provided on the fixing plate. The fixing plate is detachably connected to the top plate through the adjustment holes. The fixing plate is arranged on the side edge of the top plate and is perpendicular to the top plate.

10. The wind tunnel test release device according to claim 9, characterized in that, The telescopic rod includes an outer tube and an inner tube. The extension rod is fixedly connected to the inner tube. The length driving motor is rotatably connected to the inner tube to adjust the length of the telescopic rod.

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