Attack angle mechanism experiment device
By introducing the X-axis, Y-axis, A-axis and γ-axis moving components and sensor encoder into the angle of attack experimental device, the problem of insufficient adjustment range and accuracy is solved, precise control of the angle of attack is achieved, and the accuracy of the experimental data is improved.
Patent Information
- Application Number
- CN202422131729.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing angle of attack experimental device has limited adjustment range and low adjustment accuracy, which affects the accuracy of experimental data.
The X-axis moving component, Y-axis moving component, A-axis moving component and gamma-axis moving component are adopted, and the displacement sensor, angle encoder and PLC controller are combined to achieve accurate adjustment of all directions and angles of the test workpiece in wind tunnel test.
The adjustment range and experimental accuracy of the angle of attack are improved, the accuracy of the angle of attack is ensured, and the accuracy of the experimental data is improved.
Smart Images
Figure CN223077849U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of angle of attack mechanisms, and particularly relates to an experimental device for an angle of attack mechanism. Background Technique
[0002] In wind tunnel tests, the angle of attack mechanism is used to simulate flight conditions at different angles of attack to evaluate the performance of aircraft. The angle of attack mechanism usually includes components such as a controller, a servo motor, a transmission shaft, and an angle sensor. The controller drives the servo motor to rotate, drives the model support to rotate through the transmission shaft, and the angle sensor feeds back the angle signal to the controller to form a closed-loop feedback, thereby precisely controlling the rotation angle of the model. This mechanism can adjust the angle of attack according to test requirements, facilitating the change of the angle of attack at any time during the test.
[0003] However, the existing angle of attack experimental device has a limited adjustment range for the angle of attack and a low adjustment accuracy, which affects the accuracy of experimental data. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide an experimental device for an angle of attack mechanism, which can improve the adjustment range of the angle of attack and the experimental accuracy of the angle of attack mechanism.
[0005] To solve the above technical problems, the following technical solutions are adopted in the utility model.
[0006] An experimental device for an angle of attack mechanism includes an X-axis moving component, a Y-axis moving component, an A-axis moving component, a γ-axis moving component, and a PLC controller arranged in sequence from bottom to top; the Y-axis moving component is slidably installed on the X-axis moving component and is vertically arranged with the X-axis moving component, the A-axis moving component is installed at the top of the Y-axis moving component, and the γ-axis moving component is installed at the top of the A-axis moving component and is connected to the test workpiece; displacement sensors for detecting the moving distance are respectively arranged on the X-axis moving component and the Y-axis moving component, and the output ends of the displacement sensors are connected to the input end of the PLC controller; angle encoders are respectively arranged on the A-axis moving component and the γ-axis moving component, and the output ends of the angle encoders are connected to the input end of the PLC controller.
[0007] In the above experimental device for an angle of attack mechanism, the X-axis moving component includes an X-axis base, a first lead screw is installed on the X-axis base, and the first lead screw is thread-fitted with the Y-axis moving component; the first lead screw is connected to a first servo motor, and the controlled end of the first servo motor is connected to the output end of the PLC controller; first guide rails for slidably fitting with the Y-axis moving component are arranged on the X-axis base on both sides of the first lead screw.
[0008] The above-mentioned angle of attack mechanism experimental device, the Y-axis moving component includes a Y-axis base threadedly fitted with a first lead screw. A second lead screw is installed on the Y-axis base, and a support base is threadedly fitted on the second lead screw; the second lead screw is connected to a second servo motor, and the controlled end of the second servo motor is connected to the output end of the PLC controller; a second guide rail slidably fitted with both sides of the support base is also provided on the Y-axis base.
[0009] The above-mentioned angle of attack mechanism experimental device, the A-axis moving component includes an A-axis base installed on the support base. An A-axis box body is installed on the A-axis base. A curved knife plate is slidably installed inside the A-axis box body. A driving mechanism for driving the curved knife plate to move along the arc-shaped guide rail on the side wall of the box body is also provided on the A-axis base.
[0010] The above-mentioned angle of attack mechanism experimental device, the driving mechanism includes a rotating motor installed on the A-axis base. A driving gear is installed on the motor shaft of the rotating motor. An arc-shaped rack meshed with the driving gear is provided at the bottom of the curved knife plate. The controlled end of the rotating motor is connected to the output end of the PLC controller.
[0011] The above-mentioned angle of attack mechanism experimental device, the curved knife plate is arc-shaped, and slideways slidably fitted with the arc-shaped guide rail are respectively provided on both sides of the curved knife plate.
[0012] The above-mentioned angle of attack mechanism experimental device, the γ-axis moving component includes a bracket installed at the top end of the curved knife plate. A γ rotating shaft is installed on the bracket. The γ rotating shaft is connected to a motor. A speed reducer is also installed between the γ rotating shaft and the motor. The controlled ends of the motor and the speed reducer are respectively connected to the output end of the PLC controller.
[0013] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model is as follows.
[0014] The present utility model provides an angle of attack mechanism experimental device. By setting an X-axis moving component, a Y-axis moving component, an A-axis moving component, and a γ-axis moving component, the adjustment of various directions and angles of the test workpiece in the wind tunnel test is realized. The use of a displacement sensor, an angle encoder, and a PLC controller improves the accuracy of the angle of attack adjustment and the accuracy of the experimental data. Brief Description of the Drawings
[0015] Figure 1 It is a schematic structural diagram of the present utility model;
[0016] Figure 2 It is a side view of the present utility model;
[0017] Figure 3 It is a schematic structural diagram of the X-axis moving component and the Y-axis moving component of the present utility model;
[0018] Figure 4 Schematic diagram of the specific structure of the A-axis box body of the present utility model;
[0019] Figure 5 Schematic diagram of the specific structure of the A-axis bending tool plate of the present utility model;
[0020] Figure 6 Top view of the A-axis base of the present utility model;
[0021] Figure 7 Cross-sectional view of the γ-axis moving component of the present utility model.
[0022] Wherein: 1. X-axis moving component, 11. X-axis base, 12. First servo motor, 13. First lead screw, 14. First guide rail, 2. Y-axis moving component, 21. Y-axis base, 22. Second lead screw, 23. Second guide rail, 24. Second servo motor, 25. Support seat, 3. A-axis moving component, 31. A-axis box body, 32. Arc guide rail, 33. Bending tool plate, 34. Slideway, 35. Arc rack, 36. A-axis base, 37. Rotary motor, 38. Driving gear, 4. γ-axis moving component, 41. Bracket, 42. Motor, 43. Reducer, 44. γ-axis rotating shaft. Specific implementation manner
[0023] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.
[0024] An angle of attack mechanism experimental device, as Figures 1 to 7 shown, includes an X-axis moving component 1, a Y-axis moving component 2, an A-axis moving component 3, a γ-axis moving component 4, and a PLC controller arranged in sequence from bottom to top. The Y-axis moving component 2 is slidably installed on the X-axis moving component 1 and is perpendicularly arranged to the X-axis moving component 1. The A-axis moving component 3 is installed at the top of the Y-axis moving component 2, and the γ-axis moving component 4 is installed at the top of the A-axis moving component 3 and is connected to the test workpiece. Displacement sensors for detecting the moving distance are respectively arranged on the X-axis moving component 1 and the Y-axis moving component (2). The output end of the displacement sensor is connected to the input end of the PLC controller. Angle encoders are respectively arranged on the A-axis moving component 3 and the γ-axis moving component 4. The output end of the angle encoder is connected to the input end of the PLC controller.
[0025] The X-axis moving component 1 includes an X-axis base 11, as Figure 3 shown. A first lead screw 13 is installed on the X-axis base 11, and the first lead screw 13 is threadedly fitted with the Y-axis moving component 2.
[0026] The first lead screw 13 is connected to a first servo motor 12, and the controlled end of the first servo motor 12 is connected to the output end of the PLC controller.
[0027] The X-axis bases 11 on both sides of the first lead screw 13 are provided with first guide rails 14 that are slidably fitted with the Y-axis moving assembly 2.
[0028] The Y-axis moving assembly 2 includes a Y-axis base 21 that is threadedly fitted with the first lead screw 13. A second lead screw 22 is installed on the Y-axis base 21, and a support base 25 is threadedly fitted on the second lead screw 22.
[0029] The second lead screw 22 is connected to a second servo motor 24, and the controlled end of the second servo motor 24 is connected to the output end of the PLC controller.
[0030] The Y-axis base 21 is also provided with second guide rails 23 that are slidably fitted on both sides of the support base 25.
[0031] The A-axis moving assembly 3 includes an A-axis base 36 installed on the support base 25. An A-axis box body 31 is installed on the A-axis base 36. A cutter plate 33 is slidably installed inside the A-axis box body 31. The A-axis base 36 is also provided with a driving mechanism for driving the cutter plate 33 to move along the arc guide rail 32 on the side wall of the box body 31.
[0032] As Figure 5 shown, the cutter plate 33 is arc-shaped, and slideways 34 that are slidably fitted with the arc guide rail 32 are respectively provided on both sides of the cutter plate 33. An arc rack 35 is provided at the bottom of the cutter plate 33.
[0033] The driving mechanism includes a rotary motor 37 installed on the A-axis base 36. A driving gear 38 that meshes with the arc rack 35 is installed on the motor shaft of the rotary motor 37. The controlled end of the rotary motor 37 is connected to the output end of the PLC controller.
[0034] The γ-axis moving assembly 4 includes a bracket 41 installed at the top end of the cutter plate 33. A γ rotating shaft 44 is installed on the bracket 41. The γ rotating shaft 44 is connected to a motor 42, and a speed reducer 43 is also installed between the γ rotating shaft 44 and the motor 42. The controlled ends of the motor 42 and the speed reducer 43 are respectively connected to the output end of the PLC controller.
[0035] During use, the test workpiece is driven to move left and right by the X-axis moving assembly, driven to move back and forth by the Y-axis moving assembly, driven to rotate around the arc slide rail by the A-axis moving assembly to achieve rotation, and driven to rotate around the γ-axis by the γ-axis.
[0036] Specifically, a displacement sensor is used to detect the moving distance of the test workpiece in the X-axis direction and the Y-axis direction to ensure the precision of the movement of the test workpiece in the horizontal direction. At the same time, an angle encoder is set to accurately divide the rotation angle of the test workpiece on the A-axis and the γ-axis, ensuring the accuracy of the adjustment of the attack angle.
[0037] The utility model provides an angle of attack mechanism experimental device, which realizes the adjustment of various directions and angles of a test workpiece in a wind tunnel test by setting an X-axis movement component, a Y-axis movement component, an A-axis movement component, and a γ-axis movement component, and improves the accuracy of angle of attack adjustment and the accuracy of experimental data by cooperating with the use of a displacement sensor, an angle encoder, and a PLC controller.
Claims
1. An angle of attack mechanism experimental device, characterized in that: It includes an X-axis moving component (1), a Y-axis moving component (2), an A-axis moving component (3), a γ-axis moving component (4) and a PLC controller arranged successively from bottom to top; the Y-axis moving component (2) is slidably mounted on the X-axis moving component (1) and is arranged perpendicular to the X-axis moving component (1), the A-axis moving component (3) is mounted on the top of the Y-axis moving component (2), and the γ-axis moving component (4) is mounted on the top of the A-axis moving component (3) and is connected to the test workpiece; displacement sensors for detecting the moving distance are respectively arranged on the X-axis moving component (1) and the Y-axis moving component (2), and the output ends of the displacement sensors are connected to the input end of the PLC controller; angle encoders are respectively arranged on the A-axis moving component (3) and the γ-axis moving component (4), and the output ends of the angle encoders are connected to the input end of the PLC controller.
2. The experimental device for an angle of attack mechanism according to claim 1, characterized in that: The X-axis moving component (1) includes an X-axis base (11), a first lead screw (13) is mounted on the X-axis base (11), and the first lead screw (13) is threadedly fitted with the Y-axis moving component (2); the first lead screw (13) is connected to a first servo motor (12), and the controlled end of the first servo motor (12) is connected to the output end of the PLC controller; first guide rails (14) for slidably fitting with the Y-axis moving component (2) are arranged on the X-axis base (11) on both sides of the first lead screw (13).
3. The experimental device for an angle of attack mechanism according to claim 2, characterized in that: The Y-axis moving component (2) includes a Y-axis base (21) threadedly fitted with the first lead screw (13), a second lead screw (22) is mounted on the Y-axis base (21), and a support base (25) is threadedly fitted on the second lead screw (22); the second lead screw (22) is connected to a second servo motor (24), and the controlled end of the second servo motor (24) is connected to the output end of the PLC controller; second guide rails (23) for slidably fitting with both sides of the support base (25) are further arranged on the Y-axis base (21).
4. An angle of attack mechanism experimental device according to claim 3, characterized in that: The A-axis moving component (3) includes an A-axis base (36) mounted on the support base (25), an A-axis box body (31) is mounted on the A-axis base (36), a curved knife plate (33) is slidably mounted inside the A-axis box body (31), and a driving mechanism for driving the curved knife plate (33) to move along the arc-shaped guide rail (32) on the side wall of the box body (31) is further arranged on the A-axis base (36).
5. The experimental device for angle of attack mechanism according to claim 4, characterized in that: The driving mechanism includes a rotary motor (37) mounted on the A-axis base (36), a driving gear (38) is mounted on the motor shaft of the rotary motor (37), and an arc-shaped rack (35) for meshing and driving with the driving gear (38) is arranged at the bottom of the curved knife plate (33), and the controlled end of the rotary motor (37) is connected to the output end of the PLC controller.
6. The experimental device for an angle of attack mechanism according to claim 4, characterized in that: The curved knife plate (33) is arranged in an arc shape, and slide ways (34) for slidably fitting with the arc-shaped guide rail (32) are respectively arranged on both sides of the curved knife plate (33).
7. An angle of attack mechanism experimental device according to claim 4, characterized in that: The γ-axis moving assembly (4) includes a bracket (41) installed at the top of the bending knife plate (33). A γ-rotating shaft (44) is installed on the bracket (41). The γ-rotating shaft (44) is connected to a motor (42). A speed reducer (43) is also installed between the γ-rotating shaft (44) and the motor (42). The controlled ends of the motor (42) and the speed reducer (43) are respectively connected to the output end of the PLC controller.