Wind tunnel test model wake flow pressure measuring equipment installation device

Abstract

The utility model relates to the technical field of wind tunnel tests, and provides a wind tunnel test model wake flow pressure measuring equipment installation device which comprises a supporting seat and a support arranged on the top of the supporting seat, wake flow rake equipment is installed on the top of the support, and the top of the supporting seat is connected with a movable installation plate assembly through a first fastener. The bottom of the support is connected to the top of the movable mounting plate assembly through a second fastener. According to the utility model, the movable mounting plate assemblies can be replaced, and the height of the device can be adjusted by replacing different movable mounting plate assemblies, so that the device is suitable for different test models in the same wind tunnel, and the universality is high.

Description

Technical Field

[0001] This utility model relates to the field of wind tunnel testing technology, and more specifically, to an installation device for a wake pressure measurement device of a wind tunnel test model. Background Technology

[0002] The wake rake is used to collect airflow data at the trailing edge of the airfoil during wind tunnel tests. Therefore, not only does the wake rake require high installation accuracy to ensure the relative positional relationship between the wake rake and the test airfoil, but the installation must also be safe and reliable to ensure the safe and smooth conduct of the wind tunnel test.

[0003] Currently, in the design and manufacturing of this type of wind tunnel test model, a wake rake device installation device adapted to the wind tunnel test model is designed and manufactured separately according to the model structure and size. However, the structures of various wake rake device installation devices are different, and the degree of wind tunnel blockage is also inconsistent. Each time a model is produced, a wake rake device installation device needs to be designed and manufactured separately. Different wind tunnel test models cannot share the same wake rake device installation device. Utility Model Content

[0004] The purpose of this invention is to provide an installation device for a wake pressure measurement device for a wind tunnel test model, so as to solve the above-mentioned defects of the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A wind tunnel test model wake pressure measurement device installation device includes a support base and a bracket on top of the support base. The wake rake device is installed on top of the bracket. The top of the support base is connected to a movable mounting plate assembly by a first fastener. The bottom of the bracket is connected to the top of the movable mounting plate assembly by a second fastener, so as to adapt to different wind tunnel test models by replacing movable mounting plate assemblies of different thicknesses.

[0007] Optionally, the bracket includes a mounting part and three legs connected to the mounting part, the three legs being arranged in a triangular pattern;

[0008] The movable mounting plate assembly includes a front movable mounting plate and a rear movable mounting plate, wherein one leg is connected to the front movable mounting plate by the second fastener, and the other two legs are connected to the rear movable mounting plate by the second fastener.

[0009] Optionally, both the front movable mounting plate and the rear movable mounting plate are provided with positioning grooves that mate with the lower end of the outrigger.

[0010] Optionally, the legs have a sheet-like structure.

[0011] Optionally, the support base includes:

[0012] The base has a rectangular frame structure;

[0013] The uprights are welded to both ends of any one side of the base;

[0014] The crossbeam is welded to the top of the rectangular tube of the column; and

[0015] The diagonal brace is welded to the crossbeam at one end and to the base at the other end.

[0016] Optionally, the column, the beam, the diagonal brace, and each side constituting the base are rectangular tubes.

[0017] Optionally, the first fastener is a screw, and a rectangular nut is provided inside the rectangular tube at the connection point of the support base to the movable mounting plate assembly for connecting the first fastener.

[0018] The technical solution of this utility model has at least the following advantages and beneficial effects: In this utility model, the movable mounting plate assembly can be replaced, and the height of the device can be adjusted by replacing different movable mounting plate assemblies, so that the device is suitable for different test models in the same wind tunnel, and has high versatility. Attached Figure Description

[0019] Figure 1 A schematic diagram of the installation device for a wake pressure measuring equipment of a wind tunnel test model provided by this utility model (rectangular nut removed);

[0020] Figure 2 Exploded view of an installation device for a wake pressure measurement equipment of a wind tunnel test model provided by this utility model;

[0021] Figure 3 Exploded view of the support base;

[0022] Reference numerals: 1-Support base, 101-Base, 102-Column, 103-Beam, 104-Diagonal brace, 2-Front movable mounting plate, 3-Rear movable mounting plate, 4-Rectangular nut, 5-Bracket, 6-First fastener, 7-Wake rake device. Detailed Implementation

[0023] refer to Figure 1 and Figure 2 A wake pressure measurement device for a wind tunnel test model includes a support base 1 and a bracket 5 located on top of the support base 1. A wake rake device 7 is installed on top of the bracket 5. A movable mounting plate assembly is connected to the top of the support base 1 via a first fastener 6. The bottom of the bracket 5 is connected to the top of the movable mounting plate via a second fastener. That is, the movable mounting plate assembly can be replaced, and the height of the device can be adjusted by replacing different movable mounting plate assemblies, so that the device is suitable for different test models in the same wind tunnel and has high versatility.

[0024] refer to Figure 3 The support base 1 includes a base 101, a column 102, a crossbeam 103, and a diagonal brace 104. The base 101 is a rectangular frame structure formed by welding rectangular tubes. In practical applications, the base 101 is placed on a workbench (not shown in the figure). Reinforcing tubes can also be welded to the diagonals of the rectangular frame structure to ensure the strength of the base 101. The column 102, crossbeam 103, and diagonal brace 104 are also rectangular tubes, which ensures the overall structural strength while making the support base 1 lightweight. Specifically, the column 102 is welded to both ends of any side of the base 101, the crossbeam 103 is welded to the top of the rectangular tube of the column 102, and one end of the diagonal brace 104 is welded to the crossbeam 103, and the other end is welded to the base 101. The diagonal brace 104 strengthens the structure of the support base 1.

[0025] The support frame 5 includes a mounting section and three legs connected to the mounting section. It should be understood that the top of the mounting section is used to mount the wake rake device 7. The three legs can be welded to the mounting section or connected with screws. The three legs are arranged in a triangular pattern, forming a tripod support structure to ensure structural stability. Furthermore, the legs have a plate-like structure, giving them a smaller windward area and lower wind resistance, effectively reducing wind tunnel blockage and improving wind tunnel test results.

[0026] This example of a movable mounting plate assembly includes a front movable mounting plate 2 and a rear movable mounting plate 3. The front movable mounting plate 2 is connected to the crossbeam 103 via the aforementioned first fastener 6, and the rear movable mounting plate 3 is connected to the base 101 on one side opposite to the crossbeam 103 via the aforementioned first fastener 6. In this embodiment, the first fastener 6 is a screw. Based on this, at the location where the support base 1 connects to the movable mounting plate assembly (i.e., at the crossbeam 103 and on one side opposite to the crossbeam 103), a rectangular nut 4 is provided inside the rectangular tube for connecting the first fastener 6. It should be understood that the rectangular nut 4 matches the internal dimensions of the rectangular tube to prevent rotation caused by tightening the first fastener 6, which would prevent the first fastener 6 from being tightened.

[0027] Based on the above, one leg of the bracket 5 is connected to the front movable mounting plate 2 via a second fastener, and the other two legs are connected to the rear movable mounting plate 3 via second fasteners. In this embodiment, screws are also selected as the second fasteners. Furthermore, both the front movable mounting plate 2 and the rear movable mounting plate 3 are provided with positioning grooves that mate with the lower ends of the legs, which helps to ensure the installation accuracy of the bracket 5, thereby ensuring the installation accuracy of the wake rake device 7 and ensuring reusability.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wind tunnel test model wake pressure measurement device installation device, comprising a support base and a bracket disposed on top of the support base, wherein a wake rake device is installed on top of the bracket, characterized in that, The top of the support is connected to a movable mounting plate assembly via a first fastener, and the bottom of the bracket is connected to the top of the movable mounting plate assembly via a second fastener, so as to adapt to different wind tunnel test models by replacing movable mounting plate assemblies of different thicknesses.

2. The installation device for the wake pressure measurement equipment of the wind tunnel test model according to claim 1, characterized in that, The bracket includes a mounting part and three legs connected to the mounting part, the three legs being arranged in a triangular pattern; The movable mounting plate assembly includes a front movable mounting plate and a rear movable mounting plate, wherein one leg is connected to the front movable mounting plate by the second fastener, and the other two legs are connected to the rear movable mounting plate by the second fastener.

3. The installation device for the wake pressure measurement equipment of the wind tunnel test model according to claim 2, characterized in that, Both the front movable mounting plate and the rear movable mounting plate are provided with positioning grooves that mate with the lower end of the outrigger.

4. The installation device for the wake pressure measurement equipment of the wind tunnel test model according to claim 2, characterized in that, The legs have a sheet-like structure.

5. The installation device for the wake pressure measurement equipment of the wind tunnel test model according to any one of claims 1-4, characterized in that, The support base includes: The base has a rectangular frame structure; The uprights are welded to both ends of any one side of the base; The crossbeam is welded to the top of the rectangular tube of the column; and The diagonal brace is welded to the crossbeam at one end and to the base at the other end.

6. The installation device for the wake pressure measurement equipment of the wind tunnel test model according to claim 5, characterized in that, The columns, beams, braces, and all sides forming the base are rectangular tubes.

7. The wind tunnel test model wake pressure measurement device installation device according to claim 6, wherein the first fastener is a screw, and a rectangular nut is provided inside the rectangular tube at the connection point of the support base to the movable mounting plate assembly for connecting the first fastener.

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