Low-noise vacuumizing pump machine for wind tunnel test

Abstract

The utility model discloses a low-noise vacuumizing pump machine for a wind tunnel test, which belongs to the technical field of the low-noise vacuumizing pump machine for the wind tunnel test and comprises a bottom plate, a vacuumizing pump machine body is fixedly connected to the top of the bottom plate, and a sound insulation shell is movably installed outside the vacuumizing pump machine body. Extension plates are fixedly connected to the bottoms of the two sides of the sound insulation shell, vertical grooves are formed in the two sides of the top of the bottom plate, the two extension plates movably abut against the interiors of the corresponding vertical grooves, clamping plates are slidably connected to the two sides of the interior of the bottom plate, and the sides, away from each other, of the two clamping plates are movably clamped into the corresponding extension plates. The vacuumizing pump machine is reasonable in structural design, lifting adjustment of the lifting plate is achieved through cooperation of the lifting plate, the threaded hole and the lead screw, the function of mounting and dismounting of the sound insulation shell is achieved through cooperation of the inclined plate, the sliding plate, the clamping plate and the extension plate, and noise pollution generated when the vacuumizing pump machine body works is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of low-noise vacuum pumps for wind tunnel tests, in particular to a low-noise vacuum pump for wind tunnel tests. Background Art

[0002] A vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum. Existing vacuum pumps can basically meet daily usage needs, but there are still some shortcomings that need to be improved.

[0003] When the vacuum pump is operating, gas will be sucked into the pump and accelerated. The accelerated gas will not only rub and collide with each other, but also with the inner wall of the pump body, thereby generating a lot of noise. Some vacuum pumps do not have a good noise reduction function. In addition, the friction and collision triggered by the accelerated gas flow will cause the vacuum pump to vibrate, which on the one hand generates noise and on the other hand affects its normal operation. Therefore, we propose a low-noise vacuum pump for wind tunnel testing to solve this problem. Utility Model Content

[0004] The utility model aims to provide a low-noise vacuum pump for wind tunnel testing to solve the problems raised in the above-mentioned background technology.

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

[0006] A low-noise vacuum pump for wind tunnel testing comprises: a base plate, a vacuum pump body is fixedly connected to the top of the base plate, a soundproof shell is movably installed on the outside of the vacuum pump body, extension plates are fixedly connected to the bottoms of both sides of the soundproof shell, vertical grooves are provided on both sides of the top of the base plate, two extension plates are movably abutted in the corresponding vertical grooves, clamping plates are slidably connected to the inside of the base plate on both sides, and the sides of the two clamping plates away from each other are movably clamped in the corresponding extension plates.

[0007] Preferably, the interior of the bottom plate is slidably connected to a lifting plate, and both sides of the interior of the bottom plate are fixed

[0008] A vertical plate is connected, the lifting plate is slidably connected to the outside of the two vertical plates, the two clamping plates are fixedly connected to the sliding plate on one side close to each other, the bottoms of the two sliding plates are fixedly connected to the inclined plates, and the two inclined plates are slidably connected to the inside of the same lifting plate.

[0009] Preferably, a threaded hole is provided inside the vacuum pump body, a screw rod is rotatably connected inside the base plate, and the threaded hole is threadedly sleeved on the outside of the screw rod.

[0010] Preferably, the two vertical plates are fixedly connected to the sides away from each other with guide columns, and the two sliding plates are provided with transverse holes inside, and the two transverse holes are slidably connected to the outside of the corresponding guide columns.

[0011] Preferably, an external connection hole is provided on the right side of the sound insulation shell, and dampers are fixedly connected to the four bottom corners of the bottom plate.

[0012] Preferably, an observation window is fixedly connected to the front side of the sound insulation shell.

[0013] Preferably, a knob is fixedly connected to the bottom of the screw rod, a limiting ring is fixedly connected to the top of the inner wall of the bottom plate, and the screw rod is rotatably connected to the inside of the limiting ring.

[0014] In the utility model, the low-noise vacuum pump for wind tunnel test, when the soundproof shell needs to be installed, the knob is turned clockwise to drive the screw to rotate clockwise, so that the lifting plate starts to move downward, and the inclined plates on both sides start to move away from each other, and the training sliding plate and the card plate start to move away from each other, so that the soundproof shell is placed on the top of the bottom plate;

[0015] In the utility model, the low-noise vacuum pump for wind tunnel test drives the knob to rotate counterclockwise by further rotating the knob counterclockwise, so that the lifting plate starts to move upward, the inclined plates on both sides move closer to each other, the sliding plates and the clamping plates on both sides move closer to each other, and the clamping plates on both sides establish a clamping relationship with the inside of the corresponding extension plates;

[0016] The utility model has a reasonable structural design. The lifting and lowering adjustment of the lifting plate is realized through the cooperation of the lifting plate, the threaded hole and the screw rod. The installation and disassembly functions of the sound insulation shell are realized through the cooperation of the inclined plate, the sliding plate, the clamping plate and the extension plate, thereby effectively reducing the noise pollution of the vacuum pump body during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a low-noise vacuum pump for wind tunnel testing proposed by the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of a low-noise vacuum pump for wind tunnel testing proposed by the utility model;

[0019] Figure 3 The utility model is a three-dimensional structural schematic diagram of a lifting plate, a screw rod, a clamping plate, etc. of a low-noise vacuum pump for wind tunnel testing.

[0020] In the figure: 1. Soundproof shell; 2. Vacuum pump body; 3. External hole; 4. Bottom plate; 5. Damper; 6. Lifting plate; 7. Vertical plate; 8. Extension plate; 9. Limiting ring; 10. Screw rod; 11. Knob; 12. Clamp plate; 13. Sliding plate; 14. Inclined plate; 15. Guide column; 16. Threaded hole; 17. Observation window. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1-3 A low-noise vacuum pump for wind tunnel testing comprises: a bottom plate 4, a vacuum pump body 2 is fixedly connected to the top of the bottom plate 4, a soundproof shell 1 is movably installed outside the vacuum pump body 2, extension plates 8 are fixedly connected to the bottoms of both sides of the soundproof shell 1, vertical grooves are arranged on both sides of the top of the bottom plate 4, two extension plates 8 are movably abutted in the corresponding vertical grooves, clamping plates 12 are slidably connected to the inside of the bottom plate 4 on both sides, and the sides of the two clamping plates 12 away from each other are movably clamped in the inside of the corresponding extension plates 8.

[0023] In this embodiment, the bottom plate 4 is slidably connected to the inside of a lifting plate 6, vertical plates 7 are fixedly connected to the two sides of the bottom plate 4, the lifting plate 6 is slidably connected to the outside of the two vertical plates 7, the two clamping plates 12 are fixedly connected to the sliding plates 13 on the sides close to each other, the bottoms of the two sliding plates 13 are fixedly connected to the inclined plates 14, and the two inclined plates 14 are slidably connected to the inside of the same lifting plate 6, thereby realizing the installation and disassembly functions of the sound insulation shell 1, and greatly reducing the noise pollution emitted by the vacuum pump body 2 during operation.

[0024] In this embodiment, a threaded hole 16 is provided inside the vacuum pump body 2, and a screw rod 10 is rotatably connected inside the base plate 4. The threaded hole 16 is threadedly sleeved on the outside of the screw rod 10, and a knob 11 is fixedly connected to the bottom of the screw rod 10. A limiting ring 9 is fixedly connected to the top of the inner wall of the base plate 4, and the screw rod 10 is rotatably connected to the inside of the limiting ring 9, thereby realizing the positioning function of the vertical rotation of the screw rod 10.

[0025] In this embodiment, the two vertical plates 7 are fixedly connected to the sides away from each other with guide columns 15, and the two sliding plates 13 are provided with transverse holes inside. The two transverse holes are slidably connected to the outside of the corresponding guide columns 15, thereby realizing the guiding function of the lateral movement of the two sliding plates 13.

[0026] In this embodiment, an external connection hole 3 is provided on the right side of the soundproof shell 1, dampers 5 are fixedly connected to the four bottom corners of the bottom plate 4, and an observation window 17 is fixedly connected to the front side of the soundproof shell 1, thereby realizing the shock absorbing function of the device, reducing the loss during operation, and reducing the maintenance cost.

[0027] In this embodiment, when the sound insulation shell 1 needs to be installed, the knob 11 is rotated clockwise to drive the screw rod 10 to rotate clockwise, further causing the lifting plate 6 to start moving downward, further causing the inclined plates 14 on both sides to start moving away from each other, further causing the training sliding plate 13 and the card plate 12 to move away from each other, further placing the sound insulation shell 1 on the top of the bottom plate 4, further rotating the knob 11 counterclockwise to drive the knob 11 to rotate counterclockwise, further causing the lifting plate 6 to start moving upward, further causing the inclined plates 14 on both sides to move closer to each other, further causing the sliding plates 13 and the card plate 12 on both sides to move closer to each other, further causing the card plates 12 on both sides to establish a card connection relationship with the corresponding extension plates 8, and the lifting and lowering adjustment of the lifting plate 6 is realized through the cooperation of the lifting plate 6, the threaded hole 16 and the screw rod 10, and the installation and disassembly functions of the sound insulation shell 1 are realized through the cooperation of the inclined plate 14, the sliding plate 13, the card plate 12 and the extension plate 8, thereby effectively reducing the noise pollution of the vacuum pump body 2 during operation.

[0028] The above is a detailed introduction to a low-noise vacuum pump for wind tunnel testing provided by the utility model. This article uses specific embodiments to explain the principle and implementation 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 low-noise vacuum pump for wind tunnel testing, characterized in that: include: A bottom plate (4), the top of the bottom plate (4) is fixedly connected to a vacuum pump body (2), a soundproof shell (1) is movably installed outside the vacuum pump body (2), extension plates (8) are fixedly connected to the bottom of both sides of the soundproof shell (1), vertical grooves are arranged on both sides of the top of the bottom plate (4), and the two extension plates (8) are movably abutted in the corresponding vertical grooves, and the inside of the bottom plate (4) is slidably connected to clamping plates (12) on both sides, and the sides of the two clamping plates (12) that are away from each other are movably clamped in the inside of the corresponding extension plates (8).

2. A low-noise vacuum pump for wind tunnel testing according to claim 1, characterized in that: The bottom plate (4) is slidably connected to a lifting plate (6), both sides of the bottom plate (4) are fixedly connected to vertical plates (7), the lifting plate (6) is slidably connected to the outside of the two vertical plates (7), the two clamping plates (12) are fixedly connected to a sliding plate (13) on one side close to each other, the bottoms of the two sliding plates (13) are fixedly connected to an inclined plate (14), and the two inclined plates (14) are slidably connected to the inside of the same lifting plate (6).

3. A low-noise vacuum pump for wind tunnel testing according to claim 2, characterized in that: A threaded hole (16) is provided inside the vacuum pump body (2), a screw rod (10) is rotatably connected inside the base plate (4), and the threaded hole (16) is threadedly sleeved on the outside of the screw rod (10).

4. A low-noise vacuum pump for wind tunnel testing according to claim 2, characterized in that: The two vertical plates (7) are fixedly connected to a guide column (15) on one side away from each other, and the two sliding plates (13) are provided with a transverse hole inside, and the two transverse holes are slidably connected to the outside of the corresponding guide column (15).

5. A low-noise vacuum pump for wind tunnel testing according to claim 1, characterized in that: An external connection hole (3) is provided on the right side of the soundproof housing (1), and dampers (5) are fixedly connected to the four bottom corners of the bottom plate (4).

6. A low-noise vacuum pump for wind tunnel testing according to claim 1, characterized in that: An observation window (17) is fixedly connected to the front side of the soundproof housing (1).

7. A low-noise vacuum pump for wind tunnel testing according to claim 3, characterized in that: The bottom of the screw rod (10) is fixedly connected to a knob (11), the top of the inner wall of the base plate (4) is fixedly connected to a limiting ring (9), and the screw rod (10) is rotatably connected to the inside of the limiting ring (9).

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