Vacuumizing unit for small wind tunnel test

Abstract

The utility model discloses a small-sized vacuumizing unit for a wind tunnel test, and relates to the technical field of vacuumizing. The device comprises a workbench, the top end of the workbench is fixedly provided with a test box, the outer side of the test box is fixedly connected with symmetrically-distributed rectifier bodies, one side of the top end of the workbench is fixedly provided with a mist outlet device body, one end of one rectifier body is fixedly connected with the output end of the mist outlet device body, and the other end of the other rectifier body is fixedly connected with the output end of the mist outlet device body. A vacuum pump body is fixedly installed at the top end of the workbench. A suction pipe is installed at the output end of the vacuum pump body. The clamping ring is fixed through the T-shaped block, the T-shaped groove, the drawing pipe, the clamping ring, the convex plate, the concave plate, the bolt and the connecting plate so that the drawing pipe can be clamped and fixed, the convex plate is pulled out of the concave plate after the dismounting bolt is taken down, then the clamping ring slides to be away from the drawing pipe, the drawing pipe can be dismounted conveniently, and therefore convenient mounting and dismounting of the drawing pipe are achieved. The vacuum-pumping effect is prevented from being reduced due to aging of the suction pipe, replacement is facilitated, and the vacuum-pumping efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuuming, in particular to a small-sized vacuuming unit for wind tunnel testing. Background Art

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

[0003] Before a wind tunnel test, vacuuming is required. However, the structure of traditional vacuum pipes is fixed and not convenient to disassemble, which accelerates aging due to long-term use, thereby reducing the vacuuming effect and efficiency. To address the above problems, the inventors proposed a small-scale vacuuming unit for wind tunnel tests to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a small wind tunnel test vacuum unit, comprising a workbench, a test box is fixedly installed on the top of the workbench, and a symmetrically distributed rectifier body is fixedly connected to the outside of the test box, a mist outlet body is fixedly installed on one side of the top of the workbench, one end of the rectifier body is fixedly connected to the output end of the mist outlet body, a vacuum pump body is fixedly installed on the top of the workbench, and a suction pipe is installed on the output end of the vacuum pump body, and one end of the test box is provided with a uniformly distributed A T-slot, a T-block is slidingly provided on the inner side of the T-slot, one end of the T-block is fixedly connected to a clamping ring, the clamping rings at the top and bottom ends are fixedly installed with a connecting plate, the outer side of the connecting plate is threaded with a bolt, one end of the bolt threadedly penetrates the connecting plate, the clamping ring on the left side is fixedly installed with a convex plate, and the clamping ring on the right side is fixedly installed with a concave plate, one end of the convex plate is movably inserted into the inner side of the concave plate, a connecting port is opened on the outer side of the workbench, the connecting port and the suction tube are communicated with each other, and the inner side of the clamping ring is in contact with the suction tube.

[0005] Preferably, a protective pad distributed in an array is fixedly installed on the bottom surface of the workbench, a slot is opened on the inner side of the protective pad, a damper is fixedly installed on the inner side of the slot, the top of the damper is fixedly connected to the workbench, a spring is fixedly installed on the outer side of the damper, and the top of the spring is fixedly connected to the workbench.

[0006] Preferably, an observation port is provided on the front of the test box, and a transparent plate is fixedly provided inside the observation port.

[0007] Preferably, a placement groove is provided on the front side of the workbench.

[0008] Preferably, a partition plate is fixedly provided on the inner side of the placement groove.

[0009] Preferably, a sealing plate is hingedly mounted on the top end of the test box.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. Fix the clamping ring through the T-shaped block, T-shaped groove, suction tube, clamping ring, convex plate, concave plate, bolts and connecting plate to clamp and fix the suction tube. After removing the bolts, pull out the convex plate from the concave plate and then slide the clamping ring away from the suction tube to facilitate the removal of the suction tube, thereby realizing the convenient installation and removal of the suction tube, preventing the aging of the suction tube from reducing the vacuum effect, facilitating replacement and ensuring the vacuum efficiency;

[0012] 2. The workbench is reinforced by setting a protective pad, and the vibration of the workbench is reduced in the slot through the cooperation of the damper and the spring, which improves the shock absorption effect of the protective pad, improves the stability, prevents the test box from being unstable during the test and causing data errors, and improves the test stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structural disassembly of the utility model.

[0016] Figure 3 This is a schematic diagram of the sealing plate structure of the utility model.

[0017] Figure 4 It is a cross-section and disassembly schematic diagram of the test box and the pipe extraction structure of the utility model.

[0018] In the figure: 1. workbench; 11. test box; 12. rectifier body; 13. mist outlet body; 14. vacuum pump body; 15. suction tube; 16. T-slot; 17. T-block; 18. clamping ring; 19. connecting plate; 20. bolt; 21. concave plate; 22. convex plate; 23. connecting port; 24. sealing plate; 25. protective pad; 26. slot; 27. damper; 28. spring; 29. ​​observation port; 30. transparent plate; 31. placement slot; 32. partition plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: Figure 1-4 As shown, the utility model provides a technical solution: a small wind tunnel test vacuum unit, including a workbench 1, a test box 11 is fixedly installed on the top of the workbench 1, and a symmetrically distributed rectifier body 12 is fixedly connected to the outside of the test box 11, a mist emitter body 13 is fixedly installed on one side of the top of the workbench 1, one end of the rectifier body 12 is fixedly connected to the output end of the mist emitter body 13, a vacuum pump body 14 is fixedly installed on the top of the workbench 1, and a suction pipe 15 is installed on the output end of the vacuum pump body 14, and one end of the test box 11 is provided with evenly distributed T-shaped slots 16, and the T-shaped slots A T-shaped block 17 is provided on the inner sliding card of 16, one end of the T-shaped block 17 is fixedly connected to a clamping ring 18, and the clamping rings 18 located at the top and bottom ends are fixedly installed with connecting plates 19, and bolts 20 are threadedly installed on the outer side of the connecting plate 19, and one end of the bolt 20 threadedly penetrates the connecting plate 19, and the clamping ring 18 located on the left side is fixedly installed with a convex plate 22, and the clamping ring 18 located on the right side is fixedly installed with a concave plate 21, one end of the convex plate 22 is movably inserted into the inner side of the concave plate 21, and a connecting port 23 is opened on the outer side of the workbench 1, and the connecting port 23 and the suction tube 15 are communicated with each other, and the inner side of the clamping ring 18 is in contact with the suction tube 15.

[0021] The bottom surface of the workbench 1 is fixedly installed with an array-distributed protective pad 25, the inner side of the protective pad 25 is provided with a slot 26, the inner side of the slot 26 is fixedly installed with a damper 27, the top end of the damper 27 is fixedly connected to the workbench 1, the outer side of the damper 27 is fixedly installed with a spring 28, the top end of the spring 28 is fixedly connected to the workbench 1.

[0022] By adopting the above technical solution, the protective pad 25 is provided to reinforce the support of the workbench 1, and the vibration of the workbench 1 is reduced in the slot 26 through the cooperation of the damper 27 and the spring 28, thereby improving the shock absorption effect of the protective pad 25 and improving the stability, thereby preventing the test box 11 from being unstable during the test and causing data errors, thereby improving the test stability.

[0023] An observation port 29 is provided on the front of the test box 11 , and a transparent plate 30 is fixedly mounted inside the observation port 29 .

[0024] By adopting the above technical solution, the transparent plate 30 is provided to facilitate observation of the test process, thereby recording the test data.

[0025] A placement slot 31 is provided on the front side of the workbench 1 .

[0026] By adopting the above technical solution, the placement groove 31 is provided to facilitate the storage of the test mold.

[0027] A partition plate 32 is fixedly disposed inside the placement groove 31 .

[0028] By adopting the above technical solution, the partition plate 32 is provided to facilitate the partitioning of the space of the placement groove 31, thereby facilitating the placement and classification of the types of molds.

[0029] A sealing plate 24 is hingedly mounted on the top end of the test box 11 .

[0030] By adopting the above technical solution and providing the sealing plate 24 , it is convenient to open the test box 11 and put the test model into the test box 11 .

[0031] Working principle: First, the sealing plate 24 puts the test mold into the test box 11, and then drives the mist outlet body 13 to emit mist, and then enters the test box 11 for testing after being rectified by the rectifier body 12. Before that, vacuum is drawn through the vacuum pump body 14, and the suction tube 15 is connected with the connecting port 23. Then, the sliding T-shaped block 17 slides in the T-shaped groove 16 to approach the suction tube 15, and then the T-shaped block 17 slides in the T-shaped groove 16 to support the clamping ring 18, and the clamping ring 18 approaches the suction tube 15 and fits it. At the same time, the convex plate 22 is inserted into the concave plate 21 to connect them, and then the bolts 20 are tightened to install the connecting plate 19 to clamp the clamping ring 18. The suction tube 15 is fixed so as to be clamped and fixed. After the disassembly bolt 20 is removed, the convex plate 22 is pulled out of the concave plate 21, and then the clamping ring 18 is slid away from the suction tube 15 to facilitate the removal of the suction tube 15, thereby realizing the convenient installation and removal of the suction tube 15, preventing the suction tube 15 from aging and reducing the vacuum effect, facilitating replacement, and ensuring the vacuum efficiency. The workbench 1 is reinforced and supported by arranging a protective pad 25, and the vibration of the workbench 1 is reduced in the slot 26 through the cooperation of the damper 27 and the spring 28, thereby improving the shock absorbing effect of the protective pad 25, improving the stability, preventing the test box 11 from being unstable during the test and causing data errors, and improving the test stability.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A small-scale wind tunnel test vacuum unit, comprising a workbench (1), characterized in that: A test box (11) is fixedly mounted on the top of the workbench (1), and a symmetrically distributed rectifier body (12) is fixedly connected to the outside of the test box (11). A mist emitter body (13) is fixedly mounted on one side of the top of the workbench (1), and one end of the rectifier body (12) is fixedly connected to the output end of the mist emitter body (13). A vacuum pump body (14) is fixedly mounted on the top of the workbench (1), and a suction pipe (15) is mounted on the output end of the vacuum pump body (14). One end of the test box (11) is provided with uniformly distributed T-shaped grooves (16), and a T-shaped block (17) is slidably mounted on the inner side of the T-shaped groove (16). The T-shaped block (17) is A clamping ring (18) is fixedly connected at one end, and a connecting plate (19) is fixedly installed on the clamping ring (18) located at the top and bottom ends, and a bolt (20) is threadedly installed on the outer side of the connecting plate (19), and one end of the bolt (20) threadedly penetrates the connecting plate (19). The clamping ring (18) located on the left side is fixedly installed with a convex plate (22), and the clamping ring (18) located on the right side is fixedly installed with a concave plate (21), and one end of the convex plate (22) is movably inserted into the inner side of the concave plate (21). A connecting port (23) is opened on the outer side of the workbench (1), and the connecting port (23) and the suction tube (15) are communicated with each other, and the inner side of the clamping ring (18) is in contact with the suction tube (15).

2. A small-sized wind tunnel test vacuum unit as claimed in claim 1, characterized in that: The bottom surface of the workbench (1) is fixedly mounted with protective pads (25) distributed in an array, a slot (26) is provided on the inner side of the protective pads (25), a damper (27) is fixedly mounted on the inner side of the slot (26), the top end of the damper (27) is fixedly connected to the workbench (1), and a spring (28) is fixedly mounted on the outer side of the damper (27), the top end of the spring (28) is fixedly connected to the workbench (1).

3. A small-sized wind tunnel test vacuum unit as claimed in claim 1, characterized in that: An observation port (29) is provided on the front of the test box (11), and a transparent plate (30) is fixedly mounted on the inner side of the observation port (29).

4. A small-sized wind tunnel test vacuum unit as claimed in claim 2, characterized in that: The front side of the workbench (1) is provided with a placement groove (31).

5. A small-sized wind tunnel test vacuum unit as claimed in claim 4, characterized in that: A partition plate (32) is fixedly provided on the inner side of the placement groove (31).

6. A small-sized wind tunnel test vacuum unit as claimed in claim 3, characterized in that: A sealing plate (24) is hingedly mounted on the top end of the test box (11).

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