Installation structure of blade grid wind tunnel

Abstract

The utility model relates to the technical field of cascade wind tunnels, and discloses a cascade wind tunnel installation structure comprising a wind tunnel body, the front end of the wind tunnel body is provided with a sealing gasket, the upper and lower sides of the front end of the wind tunnel body are fixedly connected with first fixing plates, and the left and right sides of the front end of the wind tunnel body are fixedly connected with second fixing plates. The left side and the right side of the rear end of the wind tunnel body are connected with pulling plates through fixing assemblies, first bolts are arranged on the left side and the right side of the rear end of the wind tunnel body, second bolts are arranged on the upper side and the lower side of the rear end of the wind tunnel body, a connecting column is fixedly connected to the bottom end of the wind tunnel body, and a supporting column is arranged at the bottom end of the connecting column. According to the utility model, the two wind tunnel main bodies are firstly pre-fixed, and then are completely fixed through the first bolt and the second bolt, so that the supporting process during installation is reduced, the installation efficiency is improved, and the installation stability is ensured at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of cascade wind tunnels, in particular to an installation structure of a cascade wind tunnel. Background Art

[0002] A cascade wind tunnel is an experimental device used to study and test gas dynamics, particularly blade aerodynamics. It typically consists of an enclosed test space (the wind tunnel itself), a drive system for generating airflow, a measurement system for measuring airflow parameters, and a cascade device to simulate actual operating conditions.

[0003] After searching, the announcement number CN218180249U is a cascade wind tunnel installation structure, which includes a wind tunnel body, a protective mechanism, which is arranged inside the wind tunnel body. The protective mechanism includes two fixing frames, a protective frame, and a plurality of shock-absorbing strips. The sides of the two fixing frames that are close to each other are fixed on the protective frame. The outer walls of the two fixing frames are fixedly embedded in the wind tunnel body. The outer wall of the protective frame is provided with a plurality of oblique air holes. A plurality of shock-absorbing strips are embedded between the protective frame and the wind tunnel body at equal distances along the circumferential surface. The wind tunnel body, fixing frames, protective frame, and shock-absorbing strips can reduce the impact of vibrations generated by internal tests on the wind tunnel, thereby improving the quality of the wind tunnel itself and enabling the wind tunnel to be used for a long time. The connection between the wind tunnels can be improved by connecting the main body, connecting plates, and bolts. Installing them together can ensure the stability of internal tests and the firmness of the installation between the wind tunnels.

[0004] Based on the above patent, through the installation structure of the cascade wind tunnel, through the wind tunnel body, fixing frame, protective frame and shock-absorbing strips, the impact of the vibration generated by the internal test on the wind tunnel can be reduced, thereby improving the quality of the wind tunnel itself and enabling the wind tunnel to be used for a long time. The installation structure of the cascade wind tunnel can improve the stability of the connection between wind tunnels by connecting the main body, connecting plate and bolts. Installing them together can ensure the stability of internal testing and the firmness of the installation between wind tunnels. However, during installation, the above solution requires workers to support between the two wind tunnel bodies and then fix them with bolts. The installation process is relatively cumbersome and the installation efficiency is not high.

[0005] In this regard, in response to this technical problem, the present application proposes an installation structure for a cascade wind tunnel. Utility Model Content

[0006] The purpose of the present invention is to solve the shortcomings of the existing technology and propose a blade wind tunnel installation structure, which can first pre-fix the two blades and then completely fix them, thereby reducing the support process during installation, improving the installation efficiency, and ensuring the stability of the installation.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A mounting structure for a blade wind tunnel comprises a wind tunnel body, a sealing gasket is provided at the front end of the wind tunnel body, a first fixing plate is fixedly connected to the upper and lower sides of the front end of the wind tunnel body, a second fixing plate is fixedly connected to the left and right sides of the front end of the wind tunnel body, the left and right sides of the rear end of the wind tunnel body are connected to the pull plate through a fixing assembly, a first bolt is provided on the left and right sides of the rear end of the wind tunnel body, a second bolt is provided on the upper and lower sides of the rear end of the wind tunnel body, a connecting column is fixedly connected to the bottom end of the wind tunnel body, a support column is provided at the bottom end of the connecting column, the right inner wall of the bottom end of the support column is connected to the threaded rod through an adjusting assembly, and the outer wall of the threaded rod is threadedly connected to the inner wall of the bottom end of the connecting column.

[0009] Furthermore, the fixing assembly includes fixing blocks that are slidably connected on both the left and right sides of the rear end of the wind tunnel main body, the outer ends of the fixing blocks are fixedly connected to connecting rods, the fixing blocks are connected to the inner wall of the wind tunnel main body through springs, and the inner ends of the pull plates are fixedly connected to the outer ends of the connecting rods.

[0010] Furthermore, the adjustment assembly includes a rotating rod rotatably connected to the right inner wall of the bottom end of the support column, the right end of the rotating rod is fixedly connected to a knob, and the left end of the rotating rod is connected to the threaded rod through a gear assembly.

[0011] Furthermore, the gear assembly includes a driving bevel gear fixedly connected to the left end of the rotating rod and a driven bevel gear fixedly connected to the bottom end of the threaded rod, and the driving bevel gear and the driven bevel gear are meshed with each other.

[0012] Furthermore, a fixing groove is provided at one end of the outer side of the second fixing plate, and an inner end of the fixing block is configured to be arc-shaped.

[0013] Furthermore, one end of the spring is connected to the fixing block, and the other end of the spring is connected to the inner wall of the wind tunnel body.

[0014] Furthermore, sliders are fixedly connected to the left and right sides of the bottom end of the connecting column, and the outer walls of the sliders are slidably connected to the inner walls of the supporting column.

[0015] Furthermore, a protection frame is fixedly connected to the inner wall of the wind tunnel body.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the present invention, by cooperating with the first fixing plate, the second fixing plate, the fixing block, the connecting rod, the pulling plate, the spring, the first bolt and the second bolt, the two wind tunnel bodies can be pre-fixed first and then completely fixed by the first bolt and the second bolt, thereby reducing the support process during installation, improving the installation efficiency and ensuring the stability of the installation.

[0018] 2. In the present invention, the height of the wind tunnel body can be adjusted according to the installation environment through the cooperation of the connecting column, slider, support column, rotating rod, knob, active bevel gear, driven bevel gear and threaded rod, and can adapt to test environments at different heights, further improving the practicality and flexibility of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the installation structure of a cascade wind tunnel proposed in the present invention;

[0020] Figure 2 This is a structural schematic diagram of a fixed block in the installation structure of a cascade wind tunnel proposed by the present invention;

[0021] Figure 3 This is a structural schematic diagram of a threaded rod in a cascade wind tunnel installation structure proposed by the present invention.

[0022] Legend:

[0023] 1. Wind tunnel body; 2. Sealing gasket; 3. First fixing plate; 4. Second fixing plate; 5. Fixing block; 6. Connecting rod; 7. Pull plate; 8. Spring; 9. First bolt; 10. Second bolt; 11. Connecting column; 12. Slider; 13. Support column; 14. Rotating rod; 15. Knob; 16. Driving bevel gear; 17. Driven bevel gear; 18. Threaded rod; 19. Protective frame. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1 and Figure 2The utility model provides an embodiment: a mounting structure of a cascade wind tunnel, comprising a wind tunnel main body 1, a sealing gasket 2 is provided at the front end of the wind tunnel main body 1, a first fixing plate 3 is fixedly connected to the upper and lower sides of the front end of the wind tunnel main body 1, a second fixing plate 4 is fixedly connected to the left and right sides of the front end of the wind tunnel main body 1, a fixing block 5 is slidably connected to the left and right sides of the rear end of the wind tunnel main body 1, a fixing groove is provided at one end of the outer side of the second fixing plate 4, an inner end of the fixing block 5 is set in an arc shape, and an outer end of the fixing block 5 is fixedly connected to a connecting rod 6, the fixing block 5 is connected to the inner wall of the wind tunnel main body 1 through a spring 8, one end of the spring 8 is connected to the fixing block 5, and the other end of the spring 8 is connected to the inner wall of the wind tunnel main body 1, an inner end of the pull plate 7 is fixedly connected to the outer end of the connecting rod 6, a first bolt 9 is provided on the left and right sides of the rear end of the wind tunnel main body 1, a second bolt 10 is provided on the upper and lower sides of the rear end of the wind tunnel main body 1, and a protective frame 19 is fixedly connected to the inner wall of the wind tunnel main body 1;

[0026] Specifically, when the wind tunnel bodies 1 are to be installed, the first fixing plate 3 and the second fixing plate 4 on the wind tunnel body 1 are located at appropriate positions of the other wind tunnel body 1, and the elastic force of the spring 8 drives the fixing block 5 to move inward, thereby pre-fixing the second fixing plate 4. When the wind tunnel bodies 1 are to be disassembled from each other, the pulling plate 7 is pulled outward, thereby driving the connecting rod 6 to move outward, and then driving the fixing block 5 to move outward, releasing the fixation of the second fixing plate 4, so that the wind tunnel bodies 1 can be disassembled. After pre-fixation, the installation between the wind tunnel bodies 1 can be completely fixed by the action of the first bolt 9 and the second bolt 10.

[0027] Reference Figure 3 The bottom end of the wind tunnel body 1 is fixedly connected to a connecting column 11, and sliders 12 are fixedly connected to the left and right sides of the bottom end of the connecting column 11. The outer wall of the slider 12 is slidably connected to the inner wall of the support column 13. A support column 13 is provided at the bottom end of the connecting column 11. A rotating rod 14 is rotatably connected to the inner wall of the right side of the bottom end of the support column 13. A knob 15 is fixedly connected to the right end of the rotating rod 14. A driving bevel gear 16 is fixedly connected to the left end of the rotating rod 14, and a driven bevel gear 17 is fixedly connected to the bottom end of the threaded rod 18. The driving bevel gear 16 and the driven bevel gear 17 are meshed with each other, and the outer wall of the threaded rod 18 is threadedly connected to the inner wall of the bottom end of the connecting column 11;

[0028] Specifically, when the height of the wind tunnel main body 1 is to be adjusted, the knob 15 is rotated to drive the rotating rod 14 to rotate, and then the threaded rod 18 is driven to rotate through the gear assembly. The rotation of the threaded rod 18 drives the connecting column 11 to move up and down, and the slider 12 slides in the support column 13 to limit the movement of the connecting column 11. Through the movement of the connecting column 11, the position of the wind tunnel main body 1 can be adjusted, and the height of the wind tunnel main body 1 can be adjusted.

[0029] Working principle: First, when the height of the wind tunnel body 1 is to be adjusted, the knob 15 is turned to drive the rotating rod 14 to rotate, and then the gear assembly drives the threaded rod 18 to rotate. The rotation of the threaded rod 18 drives the connecting column 11 to move up and down, and the slider 12 slides in the support column 13 to limit the movement of the connecting column 11. The position of the wind tunnel body 1 can be adjusted by moving the connecting column 11, and the height of the wind tunnel body 1 can be adjusted. When the wind tunnel body 1 is to be installed, the first fixed part on the wind tunnel body 1 is moved upward and downward. When the fixed plate 3 and the second fixing plate 4 are located at the appropriate positions of the other wind tunnel main body 1, the elastic force of the spring 8 drives the fixing block 5 to move inward, thereby pre-fixing the second fixing plate 4. When the wind tunnel main bodies 1 are to be disassembled from each other, the pulling plate 7 is pulled outward to drive the connecting rod 6 to move outward, thereby driving the fixing block 5 to move outward, releasing the fixation of the second fixing plate 4, so that the wind tunnel main bodies 1 can be disassembled. After pre-fixation, the installation between the wind tunnel main bodies 1 can be completely fixed by the action of the first bolt 9 and the second bolt 10.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cascade wind tunnel installation structure, comprising a wind tunnel body (1), characterized in that: The front end of the wind tunnel body (1) is provided with a sealing gasket (2), the upper and lower sides of the front end of the wind tunnel body (1) are fixedly connected to the first fixing plate (3), the left and right sides of the front end of the wind tunnel body (1) are fixedly connected to the second fixing plate (4), the left and right sides of the rear end of the wind tunnel body (1) are connected to the pull plate (7) through a fixing assembly, the left and right sides of the rear end of the wind tunnel body (1) are provided with a first bolt (9), the upper and lower sides of the rear end of the wind tunnel body (1) are provided with a second bolt (10), the bottom end of the wind tunnel body (1) is fixedly connected to a connecting column (11), the bottom end of the connecting column (11) is provided with a supporting column (13), the inner wall of the right side of the bottom end of the supporting column (13) is connected to the threaded rod (18) through an adjusting assembly, and the outer wall of the threaded rod (18) is threadedly connected to the inner wall of the bottom end of the connecting column (11).

2. The installation structure of a cascade wind tunnel according to claim 1, characterized in that: The fixing assembly comprises fixing blocks (5) slidably connected to both left and right sides of the rear end of the wind tunnel body (1), the outer ends of the fixing blocks (5) are fixedly connected to connecting rods (6), the fixing blocks (5) are connected to the inner wall of the wind tunnel body (1) via springs (8), and the inner ends of the pull plates (7) are fixedly connected to the outer ends of the connecting rods (6).

3. The installation structure of a cascade wind tunnel according to claim 1, characterized in that: The adjustment assembly comprises a rotating rod (14) rotatably connected to the inner wall on the right side of the bottom end of the support column (13); a knob (15) is fixedly connected to the right end of the rotating rod (14); and the left end of the rotating rod (14) is connected to the threaded rod (18) via a gear assembly.

4. The installation structure of a cascade wind tunnel according to claim 3, characterized in that: The gear assembly comprises a driving bevel gear (16) fixedly connected to the left end of the rotating rod (14) and a driven bevel gear (17) fixedly connected to the bottom end of the threaded rod (18), wherein the driving bevel gear (16) and the driven bevel gear (17) are meshed with each other.

5. The installation structure of a cascade wind tunnel according to claim 2, characterized in that: A fixing groove is provided at one outer end of each of the second fixing plates (4), and an inner end of each of the fixing blocks (5) is arranged in an arc shape.

6. The installation structure of a cascade wind tunnel according to claim 2, characterized in that: One end of the spring (8) is connected to the fixed block (5), and the other end of the spring (8) is connected to the inner wall of the wind tunnel body (1).

7. The installation structure of a cascade wind tunnel according to claim 1, characterized in that: Slide blocks (12) are fixedly connected to the left and right sides of the bottom end of the connecting column (11), and the outer wall of the slide block (12) is slidably connected to the inner wall of the supporting column (13).

8. The installation structure of a cascade wind tunnel according to claim 1, characterized in that: A protective frame (19) is fixedly connected to the inner wall of the wind tunnel body (1).

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