CN113607374A - Guiding line concentration device applied to low-speed flutter wind tunnel test protection system - Google Patents
Guiding line concentration device applied to low-speed flutter wind tunnel test protection system Download PDFInfo
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- CN113607374A CN113607374A CN202110905174.2A CN202110905174A CN113607374A CN 113607374 A CN113607374 A CN 113607374A CN 202110905174 A CN202110905174 A CN 202110905174A CN 113607374 A CN113607374 A CN 113607374A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The application provides a direction line concentration device for experimental protection system of low-speed flutter wind tunnel, includes: the guide concentrator is arranged in the wind tunnel wall preformed hole, the guide concentrator is provided with a conduit penetrating through the wind tunnel wall preformed hole, a horn mouth extends from one end of the conduit, the horn mouth rotates around the axis of the conduit, and the outer surface of the conduit is provided with external threads; the side wall of the locking guide device is provided with a plurality of through hole holes which extend radially and are communicated to the through hole in the middle, and the guide hub is locked on the wall of the wind tunnel through the locking guide device. The application provides a direction collection device can make the cable in the wind-tunnel turn to and the dead phenomenon of cable card can not appear in the set department, and direction collection device's horn mouth curved surface is smooth, can not wearing and tearing the cable, and the curved surface radius of horn mouth department is big, and the cable is difficult to be played and is rolled up, makes to receive and release the cable more smooth and easy.
Description
Technical Field
The application belongs to the technical field of wind tunnel tests, and particularly relates to a guiding line concentration device applied to a low-speed flutter wind tunnel test protection system.
Background
In the existing low-speed flutter wind tunnel test protection system, a guide line concentration device for performing a guide line concentration function on a control cable or a cable is arranged on a pulley support by adopting two pulleys, and the cable passes through the pulley and enters a hole communicated with the outside of a tunnel through the pulley support.
However, when the wind tunnel test is performed, the control cable or the cable may be blown by wind in the wind tunnel to deviate from the middle plane of the pulley, and the control cable or the cable is locked at the gap between the pulley and the pulley support, so that the wind tunnel test cannot be performed smoothly.
Disclosure of Invention
The application aims to provide a guide line concentration device applied to a low-speed flutter wind tunnel test protection system, so as to solve or alleviate at least one problem in the background technology.
The technical scheme of the application is as follows: the utility model provides a be applied to direction concentrator of experimental protection system of low-speed flutter wind-tunnel, direction concentrator includes:
the guide concentrator is arranged in the wind tunnel wall preformed hole, the guide concentrator is provided with a conduit penetrating through the wind tunnel wall preformed hole, a horn mouth extends from one end of the conduit, the horn mouth rotates around the axis of the conduit, and the outer surface of the conduit is provided with external threads; and
the side wall of the locking guide device is provided with a plurality of through hole holes which extend radially and are communicated with the through hole in the middle part, and the guide concentrator is locked on the wall of the wind tunnel through the locking guide device;
and the cable for the wind tunnel test protection system is communicated to the bell mouth through the through hole and the through hole, so that cable guide line concentration in the wind tunnel test is realized.
Furthermore, the outer diameter of the guide pipe is consistent with the aperture of the wind tunnel wall preformed hole.
Furthermore, the radian of the bell mouth is semicircular.
Furthermore, the bell mouth and the conduit are integrally formed.
Further, the outer contour of the locking guide device is a polygon with edges and corners.
Further, the polygons include, but are not limited to, regular triangles, squares, and regular hexagons.
Furthermore, the inner surface of the locking guide device is provided with an arc-shaped part tangent to the bottom of the bell mouth.
Further, the axis of the through hole is axially located in the middle of the locking guide device.
Further, the axes of the through hole holes are coplanar and perpendicular to the axis of the conduit.
Further, the distance between the axis of the through hole and the end part of the conducting wire pipe is not less than the radius of the through hole.
The utility model provides a direction concentrator compares in former concentrator, and the dead phenomenon of cable card can not appear in turning to and the aggregate department in the cable in the wind-tunnel, and direction concentrator's horn mouth curved surface is smooth, can not wear and tear the cable, has saved the time of frequent change impaired cable in the wind-tunnel test process, and the curved surface radius of horn mouth department is big in addition, and the cable is difficult to be curled up, makes to receive and release the cable more smooth and easy.
Drawings
In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.
Fig. 1 is a schematic perspective view (inside) of the guiding line concentrator of the present application installed on the wall of a wind tunnel.
Fig. 2 is a schematic perspective view (outside) of the guiding line concentrator of the present application installed on the wall of the wind tunnel.
Fig. 3 is a schematic cross-sectional view of the guiding line concentrator of the present application installed on the wall of a wind tunnel.
FIG. 4 is a schematic cross-sectional view of a steering hub in a wind tunnel according to the present application.
FIG. 5 is a schematic front view of a steering hub in a wind tunnel according to the present application.
FIG. 6 is a schematic cross-sectional view of a locking guide outside of a wind tunnel according to the present application.
Fig. 7 is a schematic perspective view of a locking guide device outside a wind tunnel according to the present application.
Reference numerals:
10-wind tunnel wall
20-oriented hub
21-horn mouth
22-conduit
30-locking guide
31-through hole
32-arc part
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.
To prior art low-speed flutter wind tunnel test protection system's direction line concentrator department, the cable can be blown by wind in the wind-tunnel and is died in the clearance department card of pulley and pulley support, and then leads to the problem that the wind-tunnel test can't go on smoothly, provides a neotype direction line concentrator in this application.
Be different from the design that direction line concentration device among the prior art used two pulleys to adorn on the pulley support, the design that direction line concentration device in this application becomes two pulleys in the wind-tunnel part and pulley support becomes single part of horn mouth shape to realize simple, quick, practical, reliable purpose.
As shown in fig. 1 to 7, the guiding hub device provided by the present application mainly includes two parts, namely, a guiding hub 20 inside the wind tunnel and a locking guiding device 30 outside the wind tunnel.
The guide hub 20 is arranged in a prepared hole in the wind tunnel wall 10, wherein the guide hub 20 has a conduit 22 extending through the prepared hole in the wind tunnel wall, and the outer surface of the conduit 22 has an external thread. Preferably, the outer diameter of the conduit 22 is consistent with the diameter of the hole reserved in the wall of the wind tunnel. A bell mouth 21 extends from one end of the conduit 22 into the wind tunnel, and the bell mouth 21 is formed by turning around the axis of the conduit 22. In the preferred embodiment of the present application, the curvature of the flare 21 is semicircular, that is, one end of the flare 21 extends from the conduit 22, and the other end is attached to the wind tunnel wall 10, so that a structure with less influence on the airflow field can be formed in the wind tunnel. In a further preferred embodiment, the flare 21 is integrally formed with the conduit 22.
The locking guide 30 has a through hole in the middle, the left side of the through hole has an internal thread matching the external thread of the conduit 22, the right side of the through hole has an arc portion 32 tangent to the bottom of the bell mouth 21, the sidewall of the locking guide 30 has a plurality of through holes 31 extending radially to communicate with the through hole, and the guide hub 20 can be locked and fixed on the wind tunnel wall 10 by the locking guide 30. Preferably, the plurality of through-hole holes 31 are evenly distributed in the circumferential direction, coplanar in the axial direction and perpendicular to the axis of the conduit 22.
In a preferred embodiment of the present application, the internal thread of the left portion of the through-hole is equally divided in the thickness direction (axial direction) with the arc-shaped portion 32 of the right portion, and the axis of the through-hole 31 is also located in the middle of the lock guide 30 in the thickness direction.
In the present application, to ensure that a cable passing through the through hole 31 is not interfered by the conduit 22, the distance between the axis of the through hole 31 and the end of the conduit 22 is not less than the radius of the through hole 31.
In order to ensure that the locking guide 30 is screwed down easily, the outer contour of the locking guide 30 is polygonal with edges and corners. In this application, the polygons include, but are not limited to, regular triangles, squares, and regular hexagons. In the present embodiment, the locking guide 30 is hexagonal.
The wire conduit 22 at the root of the guide concentrator 20 in the wind tunnel extends through a preformed hole on the wind tunnel wall, the locking guide device 30 on the outer side of the wind tunnel wall is connected with the guide concentrator 20 in the wind tunnel through threads outside the wind tunnel, and the locking guide device 30 is screwed by using an open wrench in a preset current situation, so that the guide concentrator 20 is fixed on the wind tunnel wall 10. If the operation space is small, a short rod can be inserted into a light hole reserved on the outer wall of the locking device outside the hole to lock the threads. A cable for wind tunnel test protection system passes through-hole and through-hole 32 and communicates to bellmouth 21, realizes the cable direction line concentration in the wind tunnel test.
The utility model provides a novel direction collection line device compares in former collection line device, and the dead phenomenon of cable card can not appear in turning to and the set department in the cable in the wind-tunnel, and direction collection line device's horn mouth curved surface is smooth, can not wear and tear the cable, has saved the time of frequently changing impaired cable in the wind-tunnel test process, and horn mouth curved surface radius is big in addition, and the cable is difficult to be curled up, makes to receive and release the cable more smooth and easy. The wind tunnel test field application obtains better effect.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a be applied to direction concentrator of experimental protection system of low-speed flutter wind tunnel which characterized in that, direction concentrator includes:
the guide concentrator (20) is arranged in a preformed hole of the wind tunnel wall (10), the guide concentrator (20) is provided with a conduit (22) penetrating through the preformed hole of the wind tunnel wall, a horn mouth (21) extends from one end of the conduit (22), the horn mouth (21) rotates around the axis of the conduit (22), and the outer surface of the conduit (22) is provided with external threads; and
a locking guide device (30) with a through hole in the middle, wherein the locking guide device (30) is provided with an internal thread matched with the external thread of the conduit (22), the side wall of the locking guide device (30) is provided with a plurality of through hole holes (31) extending radially and communicated to the through hole, and the guide hub (20) is locked on the wind tunnel wall through the locking guide device (30);
a cable for a wind tunnel test protection system is communicated to a bell mouth (21) through the through hole and the through hole (32), so that cable guiding line concentration in a wind tunnel test is realized.
2. The guiding line concentrator applied to the low-speed flutter wind tunnel test protection system according to claim 1, wherein the outer diameter of the guiding pipe (22) is consistent with the aperture of the reserved hole in the wind tunnel wall.
3. The guiding line concentrator applied to the low-speed flutter wind tunnel test protection system according to claim 1, wherein the radian of the bell mouth (21) is semicircular.
4. The guiding line concentrator applied to the low-speed flutter wind tunnel test protection system according to claim 2 or 3, wherein the bell mouth (21) and the conduit (22) are integrally formed.
5. The guiding line concentrator applied to the low-speed flutter wind tunnel test protection system according to claim 1, wherein the outer contour of the locking guide device (30) is a polygon with edges and corners.
6. The guiding line concentrator applied to the low-speed flutter wind tunnel test protection system according to claim 5, wherein the polygon comprises but is not limited to a regular triangle, a square and a regular hexagon.
7. The guiding line concentrator applied to the low-speed flutter wind tunnel test protection system according to claim 1, wherein the inner surface of the locking guide device (30) is provided with an arc-shaped part (32) tangent to the bottom of the bell mouth (21).
8. The guiding line concentrator applied to the low-speed flutter wind tunnel test protection system according to claim 1, wherein the axis of the through line hole (31) is axially located in the middle of the locking guide device (30).
9. The guiding wire collecting device applied to the low-speed flutter wind tunnel test protection system according to claim 1, wherein the axes of the plurality of through wire holes (31) are coplanar and perpendicular to the axis of the wire conduit (22).
10. The guiding wire collecting device applied to the low-speed flutter wind tunnel test protection system according to claim 1, wherein the distance between the axis of the through wire hole (31) and the end of the wire conduit (22) is not less than the radius of the through wire hole (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110905174.2A CN113607374B (en) | 2021-08-08 | 2021-08-08 | Guide line concentration device applied to low-speed flutter wind tunnel test protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110905174.2A CN113607374B (en) | 2021-08-08 | 2021-08-08 | Guide line concentration device applied to low-speed flutter wind tunnel test protection system |
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| CN113607374A true CN113607374A (en) | 2021-11-05 |
| CN113607374B CN113607374B (en) | 2024-02-23 |
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| CN202110905174.2A Active CN113607374B (en) | 2021-08-08 | 2021-08-08 | Guide line concentration device applied to low-speed flutter wind tunnel test protection system |
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| CN113607374B (en) | 2024-02-23 |
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