Wind tunnel helicopter lifting comprehensive experiment table
Through the comprehensive experimental bench of the wind tunnel helicopter lifting, the servo motor is used to drive the ball threaded screw and the rotating block to achieve the yaw and pitch action of the model. Combined with the spoiler to adjust the airflow, the simulation problems of model action and air flow field in the wind tunnel test bench are solved, and the flexibility and accuracy of wind tunnel tests are improved.
Patent Information
- Application Number
- CN202510497950.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2025-07-18
AI Technical Summary
The existing wind tunnel test bench is difficult to simulate the left and right yaw, pitching action when the helicopter model is performing forward flight in the wind tunnel, and the slight position adjustment during hovering, and the wind flow direction is difficult to simulate different air flow fields.
The wind tunnel helicopter lifting comprehensive experimental bench is used to drive the ball threaded screw and rotating block through a servo motor to achieve left and right yaw and pitch movement of the model, and the air flow direction is adjusted through the spoiler to simulate different air flow fields.
The helicopter model simulates left and right yaw, pitching action during forward flight and slight position adjustment during hovering in the wind tunnel, and can simulate a variety of air flow fields, enhancing the flexibility and accuracy of wind tunnel testing.
Smart Images
Figure CN120333757A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of wind tunnel test benches, and particularly to a wind tunnel helicopter lifting comprehensive test bench. Background Art
[0002] A wind tunnel test bench is an experimental device used to simulate an airflow environment for research in aerodynamics, fluid mechanics, and related fields. It artificially generates and controls the airflow to test the performance of models or physical objects under different conditions such as speed, pressure, and temperature. When detecting the gearbox of a helicopter, the helicopter model needs to be placed on the inner wall of the test chamber of the test bench for gearbox testing.
[0003] In the prior art, it is difficult for the helicopter model inside the wind tunnel test bench to translate and rotate after stabilization, making it difficult for the helicopter model to simulate the left - right yaw and pitch movements during forward flight, as well as the minute position adjustment during hovering in the wind tunnel. Secondly, in the traditional wind tunnel test bench, the airflow blows from bottom to top, making it difficult to simulate different airflow fields. Summary of the Invention
[0004] The purpose of the present invention is to provide a wind tunnel helicopter lifting comprehensive test bench to solve the problems proposed in the above - mentioned background art that it is difficult for the helicopter model inside the wind tunnel test bench to translate and rotate after stabilization, making it difficult for the helicopter model to simulate the left - right yaw and pitch movements during forward flight, as well as the minute position adjustment during hovering, and secondly, in the traditional wind tunnel test bench, the airflow blows from bottom to top, making it difficult to simulate different airflow fields.
[0005] To achieve the above purpose, the present invention adopts the following technical solutions: including a wind tunnel fan frame, an experimental mechanism is arranged at the top of the wind tunnel fan frame. The experimental mechanism includes an experimental chamber, a wind tunnel air outlet frame is arranged at the top of the experimental mechanism, a flow - disturbing component is arranged inside the experimental mechanism, the flow - disturbing component includes a fixed frame, and an adjusting mechanism is arranged inside the experimental mechanism, and the adjusting mechanism includes an adjusting frame.
[0006] As a preferred implementation manner, the top of the wind tunnel fan frame is fixedly connected to the bottom of the experimental chamber, and first fixing grooves are opened on both sides of the inner wall of the experimental chamber. A second fixing groove is opened on one side of the experimental chamber, and the top of the experimental chamber is fixedly connected to the bottom of the wind tunnel air outlet frame.
[0007] As a preferred implementation manner, the inner wall of the first fixing groove is fixedly connected to the outer wall of the fixed frame, and both sides of the fixed frame are rotatably connected to both sides of the flow - disturbing plate through a rotating shaft.
[0008] As a preferred implementation manner, one side of the fixed frame is fixedly connected to one side of the housing of the driving motor, and the output end of the driving motor is rotatably connected to one side of the flow - disturbing plate through a coupling.
[0009] As a preferred embodiment, the inner wall of the second fixing groove is fixedly connected to the outer wall of the adjusting frame, and an adjusting groove is formed inside the adjusting frame, and the inner wall of the adjusting groove is rotatably connected to the outer wall of one end of the ball screw through a bearing.
[0010] As a preferred embodiment, one side of the adjusting frame is fixedly connected to one side of the housing of the first servo motor, and the output end of the first servo motor is fixedly connected to the other end of the ball screw through a coupling, and the inner wall of the adjusting groove is movably connected to the outer wall of the moving plate.
[0011] As a preferred embodiment, a threaded groove is formed inside the moving plate, and the inner wall of the threaded groove is threadedly connected to the outer wall of the ball screw, and one side of the moving plate is fixedly connected to one side of the extension rod.
[0012] As a preferred embodiment, the other side of the extension rod is fixedly connected to one side of the rotating frame, and one side of the rotating frame is fixedly connected to one side of the housing of the second servo motor, and the output end of the second servo motor is fixedly connected to one side of the rotating block through a coupling, and the other side of the rotating block is rotatably connected to the inner wall of the rotating frame through a rotating shaft, and the top of the rotating block is fixedly connected to the bottom of the support frame.
[0013] As a preferred embodiment, the operation method is as follows: Place the helicopter model on the support frame, start the fan in the wind tunnel fan frame, and make the air flow flow towards the experimental mechanism; When different airflow fields need to be simulated, start the drive motor to drive the spoiler to rotate in the fixed frame, and interfere with the air flow by adjusting the angle of the spoiler to achieve the simulation of different airflow fields; To simulate the left and right yaw when the model flies forward, start the first servo motor to drive the ball screw to rotate, so that the moving plate moves along the outer wall of the screw, driving the extension rod and the model to move; To simulate the pitching motion when the model flies forward, start the second servo motor to drive the rotating block to rotate in the rotating frame, driving the model on the support frame to make a pitching motion. Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In the present invention, when it is necessary to simulate the left - right yawing and pitching motions of the model during forward flight, first start the first servo motor to drive the ball screw to rotate. The rotation of the ball screw drives the moving plate to move along the outer wall of the ball screw, thereby driving the extension rod to move, and then driving the model above the support frame to move, so as to simulate the left - right yawing during forward flight. Then start the second servo motor to drive the rotating block to rotate inside the rotating frame, thereby driving the model on the support frame to simulate the pitching motion, which facilitates the simulation of the left - right yawing and pitching motions of the helicopter model during forward flight in the wind tunnel, as well as the fine position adjustment during hovering.
[0014] 2. In the present invention, place the helicopter model above the support frame, start the fan inside the wind tunnel fan frame, and the generated wind flows into the interior of the experimental mechanism. When it is necessary to simulate different airflow fields, start the drive motor to drive the spoiler to rotate inside the fixed frame. By adjusting the angle of the spoiler, the wind flow is disturbed, thereby simulating different airflow fields, which facilitates the simulation of different airflow fields. Brief Description of the Drawings
[0015] Figure 1 It is a schematic structural diagram of a wind tunnel helicopter lifting comprehensive test bench provided by the present invention; Figure 2 It is an internal view of the experimental mechanism of a wind tunnel helicopter lifting comprehensive test bench provided by the present invention; Figure 3 It is an internal view of the experimental chamber of a wind tunnel helicopter lifting comprehensive test bench provided by the present invention; Figure 4 It is a schematic diagram of the spoiler assembly of a wind tunnel helicopter lifting comprehensive test bench provided by the present invention; Figure 5 It is a schematic diagram of the adjustment mechanism of a wind tunnel helicopter lifting comprehensive test bench provided by the present invention; Figure 6 It is a schematic diagram of the rotating frame of a wind tunnel helicopter lifting comprehensive test bench provided by the present invention.
[0016] Legend Explanation: 1. Wind tunnel fan frame; 2. Experimental mechanism; 201. Experimental chamber; 202. First fixed groove; 203. Second fixed groove; 3. Wind tunnel air outlet frame; 4. Spoiler assembly; 401. Fixed frame; 402. Spoiler; 403. Drive motor; 5. Adjustment mechanism; 501. Adjustment frame; 502. Adjustment groove; 503. Ball screw; 504. First servo motor; 505. Moving plate; 506. Thread groove; 507. Extension rod; 508. Rotating frame; 509. Second servo motor; 510. Rotating block; 511. Support frame. Detailed Embodiment
[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0018] Please refer to Figures 1-6 , the present invention provides a technical solution: including: a wind tunnel fan frame 1, an experimental mechanism 2 is provided at the top of the wind tunnel fan frame 1, the experimental mechanism 2 includes an experimental chamber 201, a wind tunnel air outlet frame 3 is provided at the top of the experimental mechanism 2, a flow disturbing component 4 is provided inside the experimental mechanism 2, the flow disturbing component 4 includes a fixed frame 401, an adjusting mechanism 5 is provided inside the experimental mechanism 2, and the adjusting mechanism 5 includes an adjusting frame 501.
[0019] In one embodiment, the top of the wind tunnel fan frame 1 is fixedly connected to the bottom of the experimental chamber 201, and first fixing grooves 202 are provided on both sides of the inner wall of the experimental chamber 201, a second fixing groove 203 is provided on one side of the experimental chamber 201, and the top of the experimental chamber 201 is fixedly connected to the bottom of the wind tunnel air outlet frame 3.
[0020] Specifically: a fan is provided inside the wind tunnel fan frame 1. Place the helicopter model above the support frame 511 and start the fan inside the wind tunnel fan frame 1, and the generated wind flows into the interior of the experimental mechanism 2.
[0021] In one embodiment, the inner wall of the first fixing groove 202 is fixedly connected to the outer wall of the fixed frame 401, and both sides of the spoiler 402 are rotatably connected to the inner side of the fixed frame 401 through a rotating shaft.
[0022] Specifically: when it is necessary to simulate different airflow fields, start the driving motor 403 to drive the spoiler 402 to rotate inside the fixed frame 401.
[0023] In one embodiment, one side of the fixed frame 401 is fixedly connected to one side of the housing of the driving motor 403, and the output end of the driving motor 403 is rotatably connected to one side of the spoiler 402 through a coupling.
[0024] Specifically: by adjusting the angle of the spoiler 402, the wind flow is disturbed, and different airflow fields are simulated, which facilitates the simulation of different airflow fields.
[0025] In one embodiment, the inner wall of the second fixing groove 203 is fixedly connected to the outer wall of the adjusting frame 501, an adjusting groove 502 is provided inside the adjusting frame 501, and the inner wall of the adjusting groove 502 is rotatably connected to one end outer wall of the ball screw 503 through a bearing.
[0026] Specifically, the setting of the adjustment groove 502 facilitates the movement and stability of the moving plate 505.
[0027] In one embodiment, one side of the adjustment frame 501 is fixedly connected to one side of the housing of the first servo motor 504, and the output end of the first servo motor 504 is fixedly connected to the other end of the ball screw 503 through a coupling, and the inner wall of the adjustment groove 502 is movably connected to the outer wall of the moving plate 505.
[0028] Specifically, start the first servo motor 504 to drive the ball screw 503 to rotate, and the rotation of the ball screw 503 drives the moving plate 505 to move along the outer wall of the ball screw 503.
[0029] In one embodiment, a threaded groove 506 is formed inside the moving plate 505, and the inner wall of the threaded groove 506 is threadedly connected to the outer wall of the ball screw 503. One side of the moving plate 505 is fixedly connected to one side of the extension rod 507.
[0030] Specifically, the extension rod 507 moves, thereby driving the model above the support frame 511 to move, so as to simulate the left and right yaw during forward flight.
[0031] In one embodiment, the other side of the extension rod 507 is fixedly connected to one side of the rotating frame 508, and one side of the rotating frame 508 is fixedly connected to one side of the housing of the second servo motor 509. The output end of the second servo motor 509 is fixedly connected to one side of the rotating block 510 through a coupling, and the other side of the rotating block 510 is rotatably connected to the inner wall of the rotating frame 508 through a rotating shaft. The top of the rotating block 510 is fixedly connected to the bottom of the support frame 511.
[0032] Specifically, start the second servo motor 509 to drive the rotating block 510 to rotate inside the rotating frame 508, thereby driving the model on the support frame 511 to simulate the pitching motion, which facilitates the simulation of the left and right yaw and pitching motions of the helicopter model during forward flight in the wind tunnel, as well as the fine position adjustment during hovering.
[0033] Working principle: Place the helicopter model above the support frame 511, start the fan inside the wind tunnel fan frame 1, and the generated wind flows into the interior of the experimental mechanism 2. When it is necessary to simulate different airflow fields, start the drive motor 403 to drive the spoiler 402 to rotate inside the fixed frame 401. By adjusting the angle of the spoiler 402, the wind flow is disturbed, thereby simulating different airflow fields. When it is necessary to simulate the left and right yawing and pitching motions of the model during forward flight, first start the first servo motor 504 to drive the ball screw 503 to rotate. The rotation of the ball screw 503 drives the moving plate 505 to move along the outer wall of the ball screw 503, thereby driving the extension rod 507 to move, and then driving the model above the support frame 511 to move, so as to simulate the left and right yawing during forward flight. Then start the second servo motor 509 to drive the rotating block 510 to rotate inside the rotating frame 508, thereby driving the model on the support frame 511 to simulate the pitching motion.
[0034] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. A comprehensive wind tunnel helicopter lift experimental platform, characterized in that, Including: A wind tunnel fan frame, at the top of which an experimental mechanism is provided. The experimental mechanism includes an experimental chamber, at the top of the experimental mechanism is provided a wind tunnel air outlet frame, and inside the experimental mechanism is provided a flow disturbance component. The flow disturbance component includes a fixed frame, and inside the experimental mechanism is provided an adjustment mechanism. The adjustment mechanism includes an adjustment frame.
2. The integrated wind tunnel helicopter lift experimental platform according to claim 1, characterized in that: The top of the wind tunnel fan frame is fixedly connected to the bottom of the experimental chamber, and on both sides of the inner wall of the experimental chamber are provided first fixing grooves. On one side of the experimental chamber is provided a second fixing groove, and the top of the experimental chamber is fixedly connected to the bottom of the wind tunnel air outlet frame.
3. The integrated wind tunnel helicopter lift experimental platform according to claim 2, characterized in that: The inner wall of the first fixing groove is fixedly connected to the outer wall of the fixed frame, and both sides of the inner side of the fixed frame are rotatably connected to both sides of the flow disturbance plate through a rotating shaft.
4. The integrated wind tunnel helicopter lift experimental platform according to claim 3, characterized in that: One side of the fixed frame is fixedly connected to one side of the housing of the driving motor, and the output end of the driving motor is rotatably connected to one side of the flow disturbance plate through a coupling.
5. A comprehensive wind tunnel helicopter lift test bench according to claim 4, characterized in that: The inner wall of the second fixing groove is fixedly connected to the outer wall of the adjustment frame, and inside the adjustment frame is provided an adjustment groove. The inner wall of the adjustment groove is rotatably connected to one end outer wall of the ball screw through a bearing.
6. The integrated wind tunnel helicopter lift experimental bench according to claim 5, characterized in that: One side of the adjustment frame is fixedly connected to one side of the housing of the first servo motor, and the output end of the first servo motor is fixedly connected to the other end of the ball screw through a coupling. The inner wall of the adjustment groove is movably connected to the outer wall of the moving plate.
7. The integrated wind tunnel helicopter lift test bench according to claim 6, characterized in that: Inside the moving plate is provided a threaded groove, and the inner wall of the threaded groove is threadedly connected to the outer wall of the ball screw. One side of the moving plate is fixedly connected to one side of the extension rod.
8. A comprehensive wind tunnel helicopter lift experimental platform according to claim 7, characterized in that: The other side of the extension rod is fixedly connected to one side of the rotating frame. One side of the rotating frame is fixedly connected to one side of the housing of the second servo motor, and the output end of the second servo motor is fixedly connected to one side of the rotating block through a coupling.
9. The integrated wind tunnel helicopter lift experimental platform according to claim 8, characterized in that: The other side of the rotating block is rotatably connected to the inner wall of the rotating frame through a rotating shaft. The top of the rotating block is fixedly connected to the bottom of the support frame.
10. The integrated wind tunnel helicopter lift experiment bench according to claim 9, characterized in that: The operation method is as follows: Place the helicopter model on the support frame, start the fan in the wind tunnel fan frame, and make the air flow flow towards the experimental mechanism; When it is necessary to simulate different air flow fields, start the driving motor to drive the flow disturbance plate to rotate in the fixed frame, and interfere with the air flow by adjusting the angle of the flow disturbance plate to achieve the simulation of different air flow fields; To simulate the left and right yaw when the model flies forward, start the first servo motor to drive the ball screw to rotate, so that the moving plate moves along the outer wall of the screw, driving the extension rod and the model to move; To simulate the pitching action when the model flies forward, start the second servo motor to drive the rotating block to rotate in the rotating frame, driving the model on the support frame to make a pitching action.