Vacuumizing device for wind tunnel test system

Abstract

The utility model discloses a vacuumizing device for a wind tunnel test system, which belongs to the technical field of wind tunnel tests and comprises a mounting seat, round knobs are arranged at four corners of the top of the mounting seat, and first screw rods are fixedly connected to the bottoms of the round knobs. The bottom of the first lead screw penetrates through the mounting base in a threaded mode and is fixedly provided with a round foot pad, a vacuum pump body and a heat exchanger body are arranged on the left side and the right side of the top of the mounting base correspondingly, the bottom of the right side of the heat exchanger body fixedly communicates with an air inlet pipe, and the right side of the air inlet pipe fixedly communicates with a connecting box. A filter screen is arranged in an inner cavity of the connecting box, and the top of the filter screen penetrates through the connecting box and is fixedly connected with a connecting plate. The mounting base can be leveled, the device can work on different terrains conveniently, the use stability of the device is improved, the filter screen can be detached quickly, workers can clean the filter screen conveniently, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind tunnel testing, in particular to a vacuum pumping device for a wind tunnel testing system. Background Art

[0002] A wind tunnel test is an aerodynamic experimental method in which a model of an aircraft or other object is placed in a wind tunnel to study the flow of gas and its interaction with the model in order to understand the aerodynamic characteristics of the actual aircraft or other objects. In terms of insect chemical ecology, it is an experiment in which the behavioral responses of living insects to odorous substances are observed in a rectangular space with circulating air. A vacuum device is required before the wind tunnel test.

[0003] The existing vacuum device is not convenient for leveling the machine body. When the working location of the device is uneven, the device cannot be placed horizontally, which reduces the stability of the device and easily causes the device to topple over during operation, causing certain economic losses. In addition, it is troublesome to disassemble and clean the filter, which increases the workload of the staff and reduces the practicality of the device. Therefore, we propose a wind tunnel test system with a vacuum device to solve this problem. Utility Model Content

[0004] The utility model aims to provide a vacuum pumping device for a wind tunnel test system to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A vacuum extraction device for a wind tunnel test system comprises a mounting seat, wherein four corners of the top of the mounting seat are provided with circular knobs, the bottom of the circular knob is fixedly connected to a first screw rod, the bottom thread of the first screw rod passes through the mounting seat and is fixedly installed with a circular foot pad, a vacuum pump body and a heat exchanger body are respectively provided on the left and right sides of the top of the mounting seat, the bottom of the right side of the heat exchanger body is fixedly connected to an air intake pipe, the right side of the air intake pipe is fixedly connected to a connecting box, the inner cavity of the connecting box is provided with a filter screen, the top of the filter screen passes through the connecting box and is fixedly connected to a connecting plate, rectangular support blocks are fixedly installed on the left and right sides of the connecting box, the inner cavity of the rectangular support block is rotatably connected to a circular rotating rod, and a positioning pressure plate is fixedly installed on the top of the circular rotating rod.

[0007] Preferably, telescopic rods are fixedly mounted on the left and right sides of the top of the circular foot pad, and the top of the telescopic rods is fixedly connected to the bottom of the mounting seat.

[0008] Preferably, a positioning bolt is provided on the top of the positioning pressure plate, and the bottom thread of the positioning bolt passes through the positioning pressure plate and extends to the inside of the connecting plate.

[0009] Preferably, shock-absorbing pads are fixedly mounted at the four corners of the bottom of the vacuum pump body, and the bottom of the shock-absorbing pad is fixedly connected to the top of the mounting seat.

[0010] Preferably, a connecting pipe is fixedly connected to the top of the right side of the vacuum pump body, and a side of the connecting pipe away from the vacuum pump body is fixedly connected to the left side of the heat exchanger body.

[0011] Preferably, movable wheels are fixedly mounted on the four corners of the bottom of the mounting base.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the circular knob, the first screw rod, the circular foot pad and the telescopic rod are used in coordination. By rotating the circular knob forward, the circular knob drives the first screw rod to rotate forward, the first screw rod rotates forward and drives the circular foot pad to move downward, and the circular foot pad moves downward and drives the telescopic rod to extend, so that the mounting seat can be leveled, which is convenient for the device to work in different terrains and improves the stability of the device.

[0014] 2. In the utility model, the connecting plate, the rectangular support block, the circular rotating rod, the positioning pressure plate and the positioning bolt are used in coordination. The positioning bolt is removed by rotating it forward, and then the positioning pressure plates on the left and right sides are respectively rotated 90 degrees clockwise to make the positioning pressure plates away from the connecting plate. Then, the connecting plate is pulled upward, and the connecting plate drives the filter screen to move upward, so that the filter screen can be quickly disassembled, which is convenient for the staff to clean the filter screen and improves the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a vacuum extraction device for a wind tunnel test system proposed by the utility model;

[0016] Figure 2 It is a rear view structural schematic diagram of a vacuum extraction device for a wind tunnel test system proposed by the utility model;

[0017] Figure 3 for Figure 1 A partial enlarged view of part A.

[0018] In the figure: 1. mounting base; 2. vacuum pump body; 3. heat exchanger body; 4. connecting pipe; 5. shock-absorbing pad; 6. air inlet pipe; 7. connecting box; 8. filter screen; 9. connecting plate; 10. rectangular support block; 11. circular rotating rod; 12. positioning pressure plate; 13. positioning bolt; 14. circular knob; 15. first screw rod; 16. circular foot pad; 17. telescopic rod; 18. moving wheel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3 A vacuum extraction device for a wind tunnel test system comprises a mounting seat 1, wherein four corners of the top of the mounting seat 1 are provided with circular knobs 14, the bottom of the circular knob 14 is fixedly connected with a first screw rod 15, the bottom thread of the first screw rod 15 penetrates the mounting seat 1 and is fixedly installed with a circular foot pad 16, a vacuum pump body 2 and a heat exchanger body 3 are respectively provided on the left and right sides of the top of the mounting seat 1, the bottom of the right side of the heat exchanger body 3 is fixedly connected with an air intake pipe 6, the right side of the air intake pipe 6 is fixedly connected with a connecting box 7, the inner cavity of the connecting box 7 is provided with a filter screen 8, the top of the filter screen 8 penetrates the connecting box 7 and is fixedly connected with a connecting plate 9, a rectangular support block 10 is fixedly installed on the left and right sides of the connecting box 7, the inner cavity of the rectangular support block 10 is rotatably connected with a circular rotating rod 11, and a positioning pressure plate 12 is fixedly installed on the top of the circular rotating rod 11.

[0021] In this embodiment, telescopic rods 17 are fixedly installed on the left and right sides of the top of the circular foot pad 16, and the top of the telescopic rod 17 is fixedly connected to the bottom of the mounting base 1. A positioning bolt 13 is provided on the top of the positioning pressure plate 12. The bottom thread of the positioning bolt 13 passes through the positioning pressure plate 12 and extends to the interior of the connecting plate 9. The circular foot pad 16 can be limited by the telescopic rod 17, thereby improving the stability of the circular foot pad 16 when moving up and down.

[0022] In this embodiment, shock-absorbing pads 5 are fixedly installed at the four corners of the bottom of the vacuum pump body 2, and the bottom of the shock-absorbing pads 5 is fixedly connected to the top of the mounting base 1. The top of the right side of the vacuum pump body 2 is fixedly connected with a connecting pipe 4, and the side of the connecting pipe 4 away from the vacuum pump body 2 is fixedly connected to the left side of the heat exchanger body 3. Moving wheels 18 are fixedly installed at the four corners of the bottom of the mounting base 1. The moving wheels 18 facilitate the staff to move the device, thereby improving the mobility of the device.

[0023] In this embodiment, when in use, the circular knob 14 is rotated forward, and the circular knob 14 drives the first screw rod 15 to rotate forward. The first screw rod 15 rotates forward and drives the circular foot pad 16 to move downward. The circular foot pad 16 moves downward and drives the telescopic rod 17 to extend, so that the mounting base 1 can be leveled, which is convenient for the device to work in different terrains. The positioning bolt 13 is removed by rotating it forward, and then the positioning pressure plates 12 on the left and right sides are respectively rotated 90 degrees clockwise to move the positioning pressure plates 12 away from the connecting plate 9, and then the connecting plate 9 is pulled upward. The connecting plate 9 drives the filter screen 8 to move upward, and the filter screen 8 can be quickly disassembled, which is convenient for the staff to clean the filter screen 8.

[0024] The above is a detailed introduction to a vacuum pumping device for a wind tunnel test system provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A vacuum pump for a wind tunnel test system, comprising a mounting seat (1), Features: The four corners of the top of the mounting seat (1) are each provided with a circular knob (14); the bottom of the circular knob (14) is fixedly connected to a first screw rod (15); the bottom of the first screw rod (15) is threadedly passed through the mounting seat (1) and is fixedly installed with a circular foot pad (16); the left and right sides of the top of the mounting seat (1) are respectively provided with a vacuum pump body (2) and a heat exchanger body (3); the bottom of the right side of the heat exchanger body (3) is fixedly connected to an air intake pipe (6); the right side of the air intake pipe (6) is fixedly connected to a connecting box (7); the inner cavity of the connecting box (7) is provided with a filter screen (8); the top of the filter screen (8) passes through the connecting box (7) and is fixedly connected to a connecting plate (9); the left and right sides of the connecting box (7) are fixedly installed with rectangular support blocks (10); the inner cavity of the rectangular support block (10) is rotatably connected to a circular rotating rod (11); the top of the circular rotating rod (11) is fixedly installed with a positioning pressure plate (12).

2. A vacuum extraction device for a wind tunnel test system according to claim 1, Features: Telescopic rods (17) are fixedly mounted on the left and right sides of the top of the circular foot pad (16), and the top of the telescopic rod (17) is fixedly connected to the bottom of the mounting seat (1).

3. A vacuum extraction device for a wind tunnel test system according to claim 1, Features: A positioning bolt (13) is arranged on the top of the positioning pressure plate (12), and the bottom thread of the positioning bolt (13) passes through the positioning pressure plate (12) and extends to the inside of the connecting plate (9).

4. A vacuum extraction device for a wind tunnel test system according to claim 1, Features: Shock-absorbing pads (5) are fixedly mounted at the four corners of the bottom of the vacuum pump body (2), and the bottom of the shock-absorbing pad (5) is fixedly connected to the top of the mounting seat (1).

5. A vacuum extraction device for a wind tunnel test system according to claim 1, Features: The top of the right side of the vacuum pump body (2) is fixedly connected with a connecting pipe (4), and the side of the connecting pipe (4) away from the vacuum pump body (2) is fixedly connected with the left side of the heat exchanger body (3).

6. A vacuum extraction device for a wind tunnel test system according to claim 1, Features: Moving wheels (18) are fixedly mounted at the four corners of the bottom of the mounting seat (1).

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