Wind tunnel test bench

Abstract

The utility model is suitable for the field of detection equipment, and provides a wind tunnel test bench, which comprises an annular support frame vertical to an airflow channel and a rotating frame rotatably arranged on the inner circle of the support frame. A spray head bracket for supporting the spray head and moving in the radial direction of the rotating frame is mounted on the rotating frame; and the spray head bracket is connected with the smoke flow supply unit, so that the position of the smoke flow spray head can be adjusted through the rotary frame for rotary adjustment and the spray head bracket for longitudinal movement adjustment, and the accurate adjustment process of the spray head is realized.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to a wind tunnel test bench. Background Art

[0002] Wind tunnel testing is an aerodynamic experiment method that places aircraft or other object models in a wind tunnel to study gas flow and its interaction with the model in order to understand the aerodynamic characteristics of actual aircraft or other objects. Through the above mechanism, during the current development of radiators, wind tunnel fluid experiments are also used to further test their structures and obtain data.

[0003] At present, wind tunnel experiments are used to obtain the turbulence (also called airflow diffusion) and cooling effect of the tested radiator. The turbulence refers to the dispersion effect of the radiator on the windward airflow using its own structure, which will further affect the heat dissipation efficiency of the radiator. The detection of turbulence in wind tunnel experiments is usually carried out by observing the smoke flow. At this stage, the smoke flow is either released manually by a handheld nozzle. This release process is very inaccurate and difficult to achieve fixed-point release, resulting in inaccurate results.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a wind tunnel test bench, which can adjust the position of the smoke nozzle by a rotating frame that can be adjusted by rotation and a nozzle bracket that can be adjusted by longitudinal movement, thereby realizing a precise adjustment process of the nozzle.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a wind tunnel test bench, including a ring-shaped support frame with a vertical airflow channel and a rotating frame rotatably installed on the inner circle of the support frame; a nozzle bracket supporting a nozzle and moving radially along the rotating frame is installed on the rotating frame; the nozzle bracket is connected to a smoke supply unit.

[0007] According to the wind tunnel test bench of the utility model, the nozzle bracket is a long rod-shaped structure.

[0008] According to the wind tunnel test bench of the utility model, the nozzle bracket is driven to rotate by a second driving mechanism; the second driving mechanism includes a rack arranged on the nozzle bracket and distributed along the extension direction of the nozzle bracket and a gear meshing with the rack; the gear is driven to move by a driver fixedly installed on the support frame.

[0009] According to the wind tunnel test bench of the utility model, the rotating frame is driven by a first driving mechanism to rotate.

[0010] According to the wind tunnel test bench of the utility model, an annular channel for smoke flow to pass through is arranged between the support frame and the rotating frame; and a first conducting port communicating with the interior of the channel is arranged on the support frame.

[0011] According to the wind tunnel test bench of the utility model, a second conducting port is arranged at the end of the nozzle bracket; the first conducting port and the second conducting port are connected by a hose.

[0012] The utility model provides a wind tunnel test bench, including an air source and an airflow recovery component, and a windward airflow channel is formed between the two; the wind tunnel test bench also includes a support frame that is vertical to the airflow channel and is annular, and a rotating frame that is rotatably installed on the inner circle of the support frame, and the rotating frame is driven by a first driving mechanism to rotate. A nozzle bracket that supports the nozzle and moves radially along the rotating frame is installed on the rotating frame, wherein the number of the nozzle brackets can be set according to needs, for example, in this embodiment, the nozzle brackets have two groups and are symmetrically distributed; the nozzle bracket is connected to a smoke supply unit, and the smoke supply unit releases the smoke supply to the nozzle, and is released by it, and the smoke receives the windward airflow and blows toward the device to be tested. During the detection process, the radial position of the nozzle is adjusted by adjusting the position of the nozzle bracket, and the circumferential position of the nozzle is adjusted by rotating the rotating frame. The utility model can adjust the position of the smoke nozzle through the rotating frame that is adjusted by rotation and the nozzle bracket that is adjusted by longitudinal movement, thereby realizing the precise adjustment process of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a distribution diagram of the wind tunnel test bench of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the smoke flow regulating structure of the utility model;

[0015] Figure 3 yes Figure 2 Schematic diagram from another angle;

[0016] Figure 4 This is a schematic diagram of the structure of the internal channel of the smoke flow regulating structure of the utility model;

[0017] In the figure, 100-air source, 101-air flow recovery component, 102-input port, 1-support frame, 11-first conduction port, 12-second conduction port, 2-rotating frame, 3-nozzle bracket, 30-rack, 31-nozzle, 32-gear, 33-driver, 10-channel. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] See also Figure 1 , Figure 2 The utility model provides a wind tunnel test bench, including an air source 100 and an airflow recovery component 101, wherein a windward airflow channel is formed between the two; the wind tunnel test bench also includes a smoke flow regulating structure arranged between the air source 100 and the airflow recovery component 101, wherein the smoke flow regulating structure includes a support frame 1 which is vertical to the airflow channel and is in a ring shape, and a rotating frame 2 which is rotatably installed on the inner circle of the support frame 1, and the rotating frame 2 is driven by a first driving mechanism to rotate.

[0020] See also Figure 2 and Figure 3 The rotating frame 2 is provided with a nozzle bracket 3 that supports the nozzle 31 and moves radially along the rotating frame 2, wherein the number of the nozzle brackets 3 can be set as needed. For example, in this embodiment, there are two groups of nozzle brackets 3, which are symmetrically distributed; the nozzle brackets 3 are connected to the smoke supply unit, and the smoke supply unit releases the smoke supply to the nozzle 31, and the smoke is released by the smoke supply unit, and the smoke is blown toward the device to be tested by the windward airflow. During the detection process, the radial position of the nozzle 31 is adjusted by adjusting the position of the nozzle bracket 3, and the circumferential position of the nozzle 31 is adjusted by rotating the rotating frame 2.

[0021] Specifically in this embodiment, the nozzle bracket 3 is a long rod-shaped structure, and a chamber for mounting the nozzle bracket 3 is provided on the rotating frame 2. The nozzle bracket 3 is driven by a second driving mechanism to move along the direction of the chamber; the second driving mechanism includes a rack 30 provided on the nozzle bracket 3 and distributed along the extending direction of the nozzle bracket 3 and a gear 32 meshing with the rack 30; the gear 32 is driven to rotate by a driver 33 fixedly installed on the support frame 1, and the driver can be a rotary motor or a servo rotary motor. When adjusting the radial position of the nozzle 31, a control program is manually input to further start the driver, and the driver drives the gear 32 to rotate, and further drives the nozzle bracket 3 to move through the gear transmission structure.

[0022] The rotating frame 2 is driven by a first driving mechanism to rotate, wherein the first driving mechanism has a similar structure to the second driving mechanism. Specifically in this embodiment, a gear ring is provided on the outer edge of the rotating frame 2, and a driver with a gear installed at the output end is installed on the support frame 1, and the gear is meshed with the gear ring.

[0023] See also Figure 3 and Figure 4 Preferably, in order to reduce the restriction of the rotating frame 2 by the external pipe during the rotation process; an annular channel 10 for smoke flow to pass through is arranged between the support frame 1 and the rotating frame 2, and an input port 102 connected to the channel 10 is arranged on the support frame 1, and a stable smoke flow supply can be provided to multiple nozzles 31 through the channel 10 during the rotation of the rotating frame 2; a first conduction port 11 connected to the inside of the channel 10 is arranged on the support frame 1, and a second conduction port 12 is arranged at the end of the nozzle holder 3; the first conduction port 11 and the second conduction port 12 are connected by a hose. The flexibility of the hose can be used to stably and effectively supply smoke flow when the nozzle holder 3 is adjusted radially.

[0024] In summary, the utility model provides a wind tunnel test bench, including an air source and an airflow recovery component, and a windward airflow channel is formed between the two; the wind tunnel test bench also includes a support frame that is vertical to the airflow channel and is annular, and a rotating frame that is rotatably installed on the inner circle of the support frame, and the rotating frame is driven by a first driving mechanism to rotate. The rotating frame is equipped with a nozzle bracket that supports the nozzle and moves radially along the rotating frame, wherein the number of the nozzle brackets can be set as needed, for example, in this embodiment, the nozzle brackets have two groups and are symmetrically distributed; the nozzle bracket is connected to a smoke supply unit, and the smoke supply unit releases the smoke supply to the nozzle, and is released by it, and the smoke takes the windward airflow and blows toward the device to be tested. During the detection process, the radial position of the nozzle is adjusted by adjusting the position of the nozzle bracket, and the circumferential position of the nozzle is adjusted by rotating the rotating frame. The utility model can adjust the position of the smoke nozzle through the rotating frame that is adjusted by rotation and the nozzle bracket that is adjusted by longitudinal movement, thereby realizing the precise adjustment process of the nozzle.

[0025] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A wind tunnel test bench, characterized in that: Including smoke flow regulating structure; The smoke flow regulating structure comprises a support frame which is vertical to the air flow channel and is in an annular shape, and a rotating frame which is rotatably installed on the inner circle of the support frame; A nozzle bracket supporting the nozzle and moving radially along the rotating frame is installed on the rotating frame; the nozzle bracket is connected to the smoke flow supply unit.

2. The wind tunnel test bench according to claim 1, characterized in that: The nozzle support is a long rod-shaped structure.

3. The wind tunnel test bench according to claim 1 or 2, characterized in that: The nozzle support is driven by a second driving mechanism to rotate; the second driving mechanism includes a rack disposed on the nozzle support and distributed along the extending direction of the nozzle support and a gear meshing with the rack; The gear is driven to move by a driver fixedly mounted on the support frame.

4. The wind tunnel test bench according to claim 1, characterized in that: The rotating frame is driven by a first driving mechanism to rotate.

5. The wind tunnel test bench according to any one of claims 1, 2 and 4, characterized in that: An annular passage for smoke flow to pass through is arranged between the support frame and the rotating frame; The support frame is provided with a first conducting port communicating with the interior of the channel.

6. The wind tunnel test bench according to claim 5, characterized in that: A second conducting port is provided at the end of the nozzle bracket; the first conducting port and the second conducting port are connected via a hose.

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