Device for adjusting angle of closed section of wind tunnel

Abstract

The utility model relates to the field of wind tunnel equipment, and discloses wind tunnel closed section angle adjusting equipment which comprises a backflow section, a motor is fixedly connected to the left end of the backflow section, a rotating shaft is fixedly connected to the driving end of the motor, a fan is fixedly connected to the right end of the rotating shaft, and one end of the backflow section is connected with an experiment section through a flow guide assembly. A control assembly is arranged at the front end of the experiment section, an adjuster is fixedly connected to the inner wall of the backflow section, a clamping ring is fixedly connected to the inner wall of the adjuster, a plurality of drivers are fixedly connected to the inner wall of the clamping ring, grid nets are arranged on the inner walls of the drivers, and a diffusion section is fixedly connected to the other end of the backflow section. According to the utility model, the roller in the driver can drive the grid net to rotate in the clamping ring by controlling the driver, and the opening and closing degrees of the fences on the grid net are changed in a matched manner, so that the angle of wind power can be changed, and various different environments can be simulated for testing.

Description

Technical Field

[0001] The utility model relates to the field of wind tunnel equipment, in particular to an angle adjustment device for realizing the closed section of a wind tunnel. Background Technique

[0002] A wind tunnel, namely a wind tunnel laboratory, is a tubular experimental device that generates and controls air flow artificially to simulate the air flow around an aircraft or an entity, and can measure the effect of the air flow on the entity and observe physical phenomena. It is one of the most commonly used and effective tools for conducting aerodynamic experiments.

[0003] During the experiment, in order to simulate the aerodynamic conditions of an aircraft in different flight states, it is necessary to adjust the angle in the closed section of the wind tunnel, that is, the test section of the wind tunnel, to change the direction and magnitude of the air flow inside the wind tunnel and simulate different environments. Therefore, an angle adjustment device for realizing the closed section of the wind tunnel is needed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to provide an angle adjustment device for realizing the closed section of a wind tunnel, which can adjust the angle between the fences on the grid and the grid according to requirements to simulate different test environments for testing.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An angle adjustment device for realizing the closed section of a wind tunnel includes a return section. A motor is fixedly connected to the left end of the return section. A rotating shaft is fixedly connected to the driving end of the motor. A fan is fixedly connected to the right end of the rotating shaft. One end of the return section is connected to an experimental section through a flow guiding component. A control component is arranged at the front end of the experimental section. A regulator is fixedly connected to the inner wall of the return section. A snap ring is fixedly connected to the inner wall of the regulator. A plurality of drivers are fixedly connected to the inner wall of the snap ring. A grid is arranged inside the driver. The other end of the return section is fixedly connected to a diffuser section.

[0007] Further, the flow guiding component includes a contraction section fixedly connected to one end of the return section. The right end of the experimental section is fixedly connected to the left end of the contraction section. A plurality of flow guiding vanes are fixedly connected to the inner wall corners of the return section. A honeycomb device is fixedly connected to the inner wall of the return section corresponding to the right side of the regulator.

[0008] Further, the control component includes a sealing ring fixedly connected to the front end of the experimental section. An electromagnetic block is fixedly connected to the left end of the sealing ring. An iron block is arranged in front of the electromagnetic block. A box door is fixedly connected to the right end of the iron block.

[0009] Further, the outer wall of the rotating shaft is rotatably connected to the inner wall of the return section. The right end of the diffuser section is fixedly connected to the left end of the experimental section.

[0010] Furthermore, a roller is provided inside the driver, and the roller is driven by an external power supply to drive the grid to rotate.

[0011] Furthermore, a rotating seat is rotatably connected to the inner wall of the experimental section, and two fixing frames are provided at the top of the rotating seat.

[0012] Furthermore, the size of the box door fits the size of the sealing ring, and the right end of the box door is connected to the front end of the experimental section by a hinge.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, through the cooperation of the grid, the regulator, the clamping ring, the driver and the honeycomb device, the device can adjust the angle between the fences on the grid and the grid according to requirements to simulate different test environments for testing. Description of the Drawings

[0015] Figure 1 is a three-dimensional view of an angle adjustment device for the closed section of a wind tunnel proposed by the utility model;

[0016] Figure 2 is a cross-sectional view of the return section in an angle adjustment device for the closed section of a wind tunnel proposed by the utility model;

[0017] Figure 3 is a structural schematic diagram of the experimental section in an angle adjustment device for the closed section of a wind tunnel proposed by the utility model;

[0018] Figure 4 is an exploded view of the regulator of an angle adjustment device for the closed section of a wind tunnel proposed by the utility model.

[0019] Legend Explanation:

[0020] 1. Return section; 2. Motor; 3. Diffuser section; 4. Experimental section; 5. Contraction section; 6. Box door; 7. Rotating shaft; 8. Fan; 9. Guide vane; 10. Honeycomb device; 11. Regulator; 12. Iron block; 13. Electromagnetic block; 14. Sealing ring; 15. Rotating seat; 16. Fixing frame; 17. Clamping ring; 18. Driver; 19. Grid. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Reference Figures 1-3 As an embodiment provided by the utility model, an angle adjustment device for the closed section of a wind tunnel includes a return section 1. A motor 2 is fixedly connected to the left end of the return section 1. A rotating shaft 7 is fixedly connected to the driving end of the motor 2. The outer wall of the rotating shaft 7 is rotatably connected to the inner wall of the return section 1. A fan 8 is fixedly connected to the right end of the rotating shaft 7. A contraction section 5 is fixedly connected to one end of the return section 1. An experimental section 4 is fixedly connected to the left end of the contraction section 5. A plurality of guide vanes 9 are fixedly connected to the inner wall corners of the return section 1. A honeycomb device 10 is fixedly connected to the inner wall of the return section 1 corresponding to the right side of the regulator 11. A sealing ring 14 is fixedly connected to the front end of the experimental section 4. An electromagnet 13 is fixedly connected to the left end of the sealing ring 14. An iron block 12 is arranged in front of the electromagnet 13. A box door 6 is fixedly connected to the right end of the iron block 12. The size of the box door 6 fits the size of the sealing ring 14. The right end of the box door 6 is connected to the front end of the experimental section 4 through a hinge;

[0023] Specifically, cut off the power supply of the electromagnet 13 so that it no longer generates suction force on the iron block 12 to open the box door 6. Place the model to be tested on the top of the fixing frame 16 and place the model by cooperating with the rotating seat 15. Then close the box door 6 to ensure the airtightness of the device through the sealing ring 14. Start the motor 2 to drive the rotating shaft 7 to rotate, so that the fan 8 rotates to generate gas flow inside the return section 1. The flowing gas is guided by the guide vanes 9 and the stability is improved through the honeycomb device 10, and then accelerated by the contraction section 5 and enters the experimental section 4 to test the model.

[0024] Reference Figures 2-4 As shown, a regulator 11 is fixedly connected to the inner wall of the return section 1. A snap ring 17 is fixedly connected to the inner wall of the regulator 11. A plurality of drivers 18 are fixedly connected to the inner wall of the snap ring 17. A roller is arranged inside the driver 18 and is driven by an external power supply to drive the grid 19 to rotate. A grid 19 is arranged on the inner wall of the driver 18. An expansion section 3 is fixedly connected to the other end of the return section 1. The right end of the expansion section 3 is fixedly connected to the left end of the experimental section 4. A rotating seat 15 is rotatably connected to the inner wall of the experimental section 4. Two fixing frames 16 are arranged at the top of the rotating seat 15;

[0025] Specifically, during the test, the driver 18 can be controlled to make the roller inside the driver 18 drive the grid 19 to rotate inside the snap ring 17, and by cooperating with changing the opening and closing degree of the fences on the grid 19, the angle of the wind force can be changed to simulate various different environments for testing. The control method of the opening and closing degree of the fences on the grid 19 is the same as the control method of the air conditioner deflector.

[0026] Working principle: Cut off the power supply of the electromagnetic block 13 so that it no longer generates suction force on the iron block 12 to open the box door 6. Place the model to be tested on the top of the fixing frame 16 and arrange the model in cooperation with the rotating base 15. Then close the box door 6 and ensure the tightness of the device through the sealing ring 14. Start the motor 2 to drive the rotation of the rotating shaft 7, so that the fan 8 rotates to generate gas flow inside the return section 1. The flowing gas is guided by the guide vane 9 and passes through the honeycomb device 10 to improve stability, and then is accelerated by the contraction section 5 and enters the experimental section 4 to test the model. During the test, the roller inside the driver 18 can be controlled by the driver 18 to drive the grid 19 to rotate inside the snap ring 17, and in cooperation with changing the opening and closing degree of the fences on the grid 19, the angle of the wind force can be changed to simulate various different environments for testing. The control method of the opening and closing degree of the fences on the grid 19 is the same as the control method of the air-conditioning deflector.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An angle adjustment device for realizing the closed section of a wind tunnel, including a return section (1), characterized in that: The left end of the return section (1) is fixedly connected to a motor (2). The driving end of the motor (2) is fixedly connected to a rotating shaft (7). The right end of the rotating shaft (7) is fixedly connected to a fan (8). One end of the return section (1) is connected to an experimental section (4) through a flow guiding assembly. A control assembly is arranged at the front end of the experimental section (4). A regulator (11) is fixedly connected to the inner wall of the return section (1). A snap ring (17) is fixedly connected to the inner wall of the regulator (11). A plurality of drivers (18) are fixedly connected to the inner wall of the snap ring (17). A grid mesh (19) is arranged on the inner wall of the driver (18). The other end of the return section (1) is fixedly connected to a diffuser section (3).

2. The angle adjustment device for the closed section of a wind tunnel according to claim 1, wherein: The flow guiding assembly includes a contraction section (5) fixedly connected to one end of the return section (1). The right end of the experimental section (4) is fixedly connected to the left end of the contraction section (5). A plurality of flow guiding vanes (9) are fixedly connected to the inner wall corners of the return section (1). A honeycomb device (10) is fixedly connected to the inner wall of the return section (1) corresponding to the right side of the regulator (11).

3. The angle adjustment device for the closed section of the wind tunnel according to claim 1, characterized in that: The control assembly includes a sealing ring (14) fixedly connected to the front end of the experimental section (4). An electromagnet block (13) is fixedly connected to the left end of the sealing ring (14). An iron block (12) is arranged at the front end of the electromagnet block (13). A box door (6) is fixedly connected to the right end of the iron block (12).

4. A device for adjusting the angle of the closed section of a wind tunnel according to claim 1, characterized in that: The outer wall of the rotating shaft (7) is rotatably connected to the inner wall of the return section (1). The right end of the diffuser section (3) is fixedly connected to the left end of the experimental section (4).

5. The angle adjustment device for the closed section of the wind tunnel according to claim 1, characterized in that: A roller is arranged inside the driver (18), and the roller is driven by an external power source to drive the grid mesh (19) to rotate.

6. The angle adjustment device for the closed section of a wind tunnel according to claim 1, characterized in that: A rotating seat (15) is rotatably connected to the inner wall of the experimental section (4). Two fixing frames (16) are arranged at the top of the rotating seat (15).

7. The angle adjustment device for the closed section of a wind tunnel according to claim 3, characterized in that: The size of the box door (6) fits the size of the sealing ring (14). The right end of the box door (6) is connected to the front end of the experimental section (4) through a hinge.

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