CN111426447B - Bottom supporting device for wind tunnel test section - Google Patents
Bottom supporting device for wind tunnel test section Download PDFInfo
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- CN111426447B CN111426447B CN202010380215.6A CN202010380215A CN111426447B CN 111426447 B CN111426447 B CN 111426447B CN 202010380215 A CN202010380215 A CN 202010380215A CN 111426447 B CN111426447 B CN 111426447B
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- flange
- wind tunnel
- test section
- test platform
- tunnel test
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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
Abstract
The invention discloses a bottom supporting device for a wind tunnel test section, and belongs to the technical field of air and power test equipment. The wind tunnel test section bottom support device comprises: the test platform is arranged in the cabin body; the first end of the supporting column is fixedly connected with the supporting base, and the second end of the supporting column is detachably connected with the test platform; the corrugated pipe is sleeved on the supporting column; a first flange is fixedly arranged at the end part of the corrugated pipe close to the test platform, and a second flange is fixedly arranged at the end part of the corrugated pipe far away from the test platform; a conical cylindrical flange is fixedly arranged at the bottom of the cabin body; the first flange is detachably connected with the conical cylinder flange, and the second flange is detachably connected with the supporting base; the size of the first flange is larger than the size of the second flange. The bottom supporting device of the wind tunnel test section is convenient for overhauling the corrugated pipe.
Description
Technical Field
The invention relates to the technical field of air and power test equipment, in particular to a bottom supporting device for a wind tunnel test section.
Background
With the rapid development of aerospace industry in China, the requirements of air and power test equipment are higher and higher, and the test conditions are stricter. In some large-scale test equipment, a test section cabin body is used as main test equipment, a test platform, an experiment model and other equipment are installed in the test section cabin body, and the test platform is used for installing the test model and some detection instruments during wind tunnel tests.
At present, a test platform generally adopts a supporting column support, and a corrugated pipe is sleeved outside the supporting column in a mounting structure form, when the corrugated pipe is overhauled, the supporting column needs to be moved, and the weight of the supporting column is large (the weight of a single supporting column in a certain test section is about 2000kg), so that the overhauling workload is large and the operability is not high.
Disclosure of Invention
The invention provides a bottom supporting device for a wind tunnel test section, which solves or partially solves the technical problems of large workload and poor operability of support columns and corrugated pipes in the prior art.
In order to solve the technical problem, the invention provides a bottom supporting device for a wind tunnel test section, which comprises: the test device comprises a cabin body, a test platform, a support base, a support column and a corrugated pipe; the test platform is arranged in the cabin body; the first end of the supporting column is fixedly connected with the supporting base, and the second end of the supporting column is detachably connected with the test platform; the corrugated pipe is sleeved on the supporting column; a first flange is fixedly arranged at the end part of the corrugated pipe close to the test platform, and a second flange is fixedly arranged at the end part of the corrugated pipe far away from the test platform; a conical cylindrical flange is fixedly arranged at the bottom of the cabin body; the first flange is detachably connected with the conical cylinder flange, and the second flange is detachably connected with the supporting base; the size of the first flange is larger than that of the second flange, and the size of the inner hole of the conical cylinder flange is larger than that of the second flange.
Furthermore, a spigot is arranged on the end face, facing the test platform, of the conical cylindrical flange; the first flange is disposed within the spigot.
Furthermore, a sealing rubber plate is arranged between the end face, facing the support column, of the first flange and the spigot; and an insulating rubber plate is arranged between the side surface of the first flange and the spigot.
Further, the wind tunnel test section bottom support device further comprises: a pressure ring flange cover and a connecting piece; the first flange is arranged between the pressure ring flange cover and the spigot; the pressure ring flange cover is detachably connected with the conical cylinder flange through the connecting piece.
Furthermore, a first flat gasket is arranged between the end part of the connecting piece, which is far away from the supporting column, and the pressure ring flange cover, and a first insulating gasket is arranged between the first flat gasket and the pressure ring flange cover; and a second flat gasket is arranged between the end part of the connecting piece close to the supporting column and the conical cylinder flange, and a second insulating gasket is arranged between the second flat gasket and the conical cylinder flange.
Further, the second flat washer is disposed between the second insulating washer and the spring washer.
Furthermore, an insulating sleeve is sleeved on the connecting piece.
Further, an O-shaped sealing ring is arranged between the second flange and the supporting base.
Furthermore, a plurality of reinforcing ribs are fixedly arranged on the outer wall of the cabin body.
Furthermore, a plurality of T-shaped grooves are formed in the end face, deviating from the supporting column, of the test platform.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
because the test platform is arranged in the cabin body, the first end of the supporting column is fixedly connected with the supporting base, and the second end of the supporting column is detachably connected with the test platform, the test platform can be supported by the supporting column, because the corrugated pipe is sleeved on the supporting column, the end part of the corrugated pipe close to the test platform is fixedly provided with the first flange, the end part of the corrugated pipe far away from the test platform is fixedly provided with the second flange, the bottom of the cabin body is fixedly provided with the conical cylinder flange, the first flange is detachably connected with the conical cylinder flange, and the second flange is detachably connected with the supporting base, when the corrugated pipe needs to be overhauled, the test platform is moved away, the first flange is detached from the conical cylinder flange, the second flange is detached from the supporting base, because the size of the first flange is larger than that of the second flange, the corrugated pipe can be directly hung up, the supporting column does not need to be moved, and the size of the inner hole of the conical cylinder flange is larger than that of the second flange, so that the corrugated pipe can be taken out from the bottom of the cabin body smoothly, the overhauling workload is small, and the operability is high.
Drawings
FIG. 1 is a front view of a wind tunnel test section bottom support apparatus provided in an embodiment of the present invention;
FIG. 2 is a top view of the bottom support apparatus of the wind tunnel test section of FIG. 1;
FIG. 3 is a left side view of the bottom support apparatus of the wind tunnel test section of FIG. 1;
FIG. 4 is an isometric view of the bottom support apparatus of the wind tunnel test section of FIG. 1;
FIG. 5 is a cross-sectional view taken along line A-A of the bottom support apparatus of the wind tunnel test section of FIG. 1;
FIG. 6 is a cross-sectional view taken along line B-B of the bottom support apparatus of the wind tunnel test section of FIG. 1;
FIG. 7 is an enlarged schematic view at I of the bottom support device of the wind tunnel test section in FIG. 6.
Detailed Description
Referring to fig. 1 to 5, an embodiment of the present invention provides a bottom support device for a wind tunnel test section, including: cabin body 1, test platform 2, support base 3, support column 4 and bellows 5.
The test platform 2 is arranged in the cabin 1.
The first end of support column 4 and support base 3 fixed connection, the second end of support column 4 is connected with test platform 2 detachablely.
The corrugated pipe 5 is sleeved on the supporting column 4.
The end part of the corrugated pipe 5 close to the test platform 2 is fixedly provided with a first flange 6, and the end part of the corrugated pipe 5 far away from the test platform 2 is fixedly provided with a second flange 7.
The bottom of the cabin body 1 is fixedly provided with a conical cylinder flange 8.
The first flange 6 is detachably connected with the conical cylinder flange 8, and the second flange 7 is detachably connected with the support base 3.
Wherein the size of the first flange 6 is larger than that of the second flange 7, and the size of the inner hole of the conical cylindrical flange 8 is larger than that of the second flange 7.
In the embodiment of the application, because the test platform 2 is arranged in the cabin body 1, the first end of the support column 4 is fixedly connected with the support base 3, and the second end of the support column 4 is detachably connected with the test platform 2, the test platform 2 can be supported by the support column 4, because the corrugated pipe 5 is sleeved on the support column 4, the end part of the corrugated pipe 5 close to the test platform 2 is fixedly provided with the first flange 6, the end part of the corrugated pipe 5 far away from the test platform 2 is fixedly provided with the second flange 7, the bottom of the cabin body 1 is fixedly provided with the conical cylindrical flange 8, the first flange 6 is detachably connected with the conical cylindrical flange 8, and the second flange 7 is detachably connected with the support base 3, when the corrugated pipe 5 needs to be overhauled, the test platform 2 is moved away, the first flange 6 is detached from the conical cylindrical flange 8, and the second flange 7 is detached from the support base 3, because the size of first flange 6 is greater than the size of second flange 7, so, can directly hoist bellows 5, need not remove support column 4, because the size of the hole of toper drum flange 8 is greater than the size of second flange 7, so, can guarantee that bellows 5 takes out from the bottom of the cabin body smoothly, and the maintenance work load is little, and the operability is high.
Referring to fig. 6-7, specifically, a spigot is provided on the end surface of the conical cylindrical flange 8 facing the test platform 2; the first flange 6 is arranged in the spigot, through which the first flange 6 can be positioned.
After multiple wind tunnel blowing tests, static electricity can be generated on the test section cabin body 1 and conducted to the test platform 2, so that interference is caused on test detection instruments and test models, and the accuracy of test data is affected. Therefore, the sealing rubber plate 9 is arranged between the end face, facing the supporting column 4, of the first flange 6 and the seam allowance, the insulating rubber plate 10 is arranged between the side face of the first flange 6 and the seam allowance, insulation between the first flange 6 and the cabin body 1 is guaranteed, static conduction is avoided, and meanwhile, the sealing rubber plate 9 can guarantee sealing performance of the corrugated pipe 5.
The wind tunnel test section bottom strutting arrangement still includes: a pressure ring flange cover 11 and a connecting piece 12.
The first flange 6 is arranged between the pressure ring flange cover 11 and the seam allowance; the pressure ring flange cover 11 is detachably connected to the conical cylinder flange 8 by a connecting member 12. In the embodiment, a first through hole is formed in the pressure ring flange cover 11, a second through hole is formed in the conical cylinder flange 8, the first through hole is communicated with the second through hole, the connecting piece 12 can adopt a bolt 12-1 and a nut 12-2, the bolt 12-1 sequentially penetrates through the first through hole and the second through hole to be connected with the nut 12-2, and the first flange 6 is pressed in the rabbet through the pressure ring flange cover 11.
A first flat gasket 13 is arranged between the end of the connecting piece 12 far away from the supporting column 4 and the pressure ring flange cover 11, and a first insulating gasket 14 is arranged between the first flat gasket 13 and the pressure ring flange cover 11. In the present embodiment, a first flat washer 13 is provided between the head of the bolt 12-1 and the pressure ring flange cover 11.
A second flat gasket 15 is arranged between the end part of the connecting piece 12 close to the supporting column 4 and the conical cylinder flange 8, and a second insulating gasket 16 is arranged between the second flat gasket 15 and the conical cylinder flange 8.
The second flat washer 15 is disposed between the second insulating washer 16 and the spring washer 17. In the present embodiment, the spring washer 17 is disposed between the nut 12-2 and the second flat washer 15.
The connecting piece 12 is sleeved with an insulating sleeve 18. In the present embodiment, the bolt 12-1 is fitted with the insulating bush 18, and the insulating bush 18 is disposed in the first through hole and the second through hole.
The first insulating washer 14, the second insulating washer 16 and the insulating sleeve 18 ensure that the connecting piece 12 is insulated from the pressure ring flange cover 11 and the conical cylinder flange 8.
Specifically, an O-ring 19 is disposed between the second flange 7 and the supporting base 3, so as to ensure the sealing performance of the bellows 5 and avoid electrostatic conduction.
Specifically, the outer wall of the cabin 1 is fixedly provided with a plurality of reinforcing ribs 20. The reinforcing ribs 20 form a grid in a shape like a Chinese character 'jing' on the outer wall of the cabin body 1, so that the strength and the rigidity of the cabin body 1 are improved.
Specifically, a plurality of T type grooves 21 have been seted up on the terminal surface that test platform 2 deviates from support column 4, and a plurality of T type grooves 21 are along horizontal, vertical staggered arrangement at test platform 2 for installation testing instrument or experimental model. Meanwhile, in order to take out the mounting screws in the T-shaped groove 21 conveniently, a plurality of round holes 22 are uniformly arranged on the test platform 2, the depth of the round holes is the same as that of the T-shaped groove 21, and the diameter of each round hole is larger than the maximum overall dimension of each mounting screw.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A wind tunnel test section bottom support device, characterized by includes: the test device comprises a cabin body, a test platform, a support base, a support column and a corrugated pipe;
the test platform is arranged in the cabin body;
the first end of the supporting column is fixedly connected with the supporting base, and the second end of the supporting column is detachably connected with the test platform;
the corrugated pipe is sleeved on the supporting column;
a first flange is fixedly arranged at the end part of the corrugated pipe close to the test platform, and a second flange is fixedly arranged at the end part of the corrugated pipe far away from the test platform;
a conical cylindrical flange is fixedly arranged at the bottom of the cabin body;
the first flange is detachably connected with the conical cylinder flange, and the second flange is detachably connected with the supporting base;
the size of the first flange is larger than that of the second flange, and the size of the inner hole of the conical cylinder flange is larger than that of the second flange.
2. The wind tunnel test section bottom support device of claim 1, wherein:
a spigot is arranged on the end face of the conical cylindrical flange facing the test platform;
the first flange is disposed within the spigot.
3. The wind tunnel test section bottom support device of claim 2, wherein:
a sealing rubber plate is arranged between the end face, facing the support column, of the first flange and the spigot;
and an insulating rubber plate is arranged between the side surface of the first flange and the spigot.
4. The wind tunnel test section bottom support device of claim 2, further comprising: a pressure ring flange cover and a connecting piece;
the first flange is arranged between the pressure ring flange cover and the spigot;
the pressure ring flange cover is detachably connected with the conical cylinder flange through the connecting piece.
5. The wind tunnel test section bottom support device of claim 4, wherein:
a first flat gasket is arranged between the end part of the connecting piece far away from the supporting column and the pressure ring flange cover, and a first insulating gasket is arranged between the first flat gasket and the pressure ring flange cover;
and a second flat gasket is arranged between the end part of the connecting piece close to the supporting column and the conical cylinder flange, and a second insulating gasket is arranged between the second flat gasket and the conical cylinder flange.
6. The wind tunnel test section bottom support device of claim 5, wherein:
the second flat washer is disposed between the second insulating washer and the spring washer.
7. The wind tunnel test section bottom support device of claim 4, wherein:
the connecting piece is sleeved with an insulating sleeve.
8. The wind tunnel test section bottom support device of claim 1, wherein:
an O-shaped sealing ring is arranged between the second flange and the supporting base.
9. The wind tunnel test section bottom support device of claim 1, wherein:
and a plurality of reinforcing ribs are fixedly arranged on the outer wall of the cabin body.
10. The wind tunnel test section bottom support device of claim 1, wherein:
a plurality of T-shaped grooves are formed in the end face, deviating from the supporting column, of the test platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010380215.6A CN111426447B (en) | 2020-05-08 | 2020-05-08 | Bottom supporting device for wind tunnel test section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010380215.6A CN111426447B (en) | 2020-05-08 | 2020-05-08 | Bottom supporting device for wind tunnel test section |
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| Publication Number | Publication Date |
|---|---|
| CN111426447A CN111426447A (en) | 2020-07-17 |
| CN111426447B true CN111426447B (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010380215.6A Active CN111426447B (en) | 2020-05-08 | 2020-05-08 | Bottom supporting device for wind tunnel test section |
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| CN (1) | CN111426447B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113074174A (en) * | 2021-04-21 | 2021-07-06 | 中国科学院力学研究所 | Shock tunnel test cabin and corrugated pipe connecting method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04315024A (en) * | 1991-04-11 | 1992-11-06 | Mitsubishi Heavy Ind Ltd | Model injection/ejection device for avoiding shock load |
| JPH05172691A (en) * | 1991-12-25 | 1993-07-09 | Ishikawajima Harima Heavy Ind Co Ltd | Shock wave wind tunnel tester |
| CN103115746A (en) * | 2013-01-21 | 2013-05-22 | 中国科学院力学研究所 | Shock tunnel module support device |
| CN106153288A (en) * | 2016-08-24 | 2016-11-23 | 湖北三江航天红阳机电有限公司 | A kind of wind tunnel test attack angle mechanism and corrugated tube stagewise supporting mechanism thereof |
| CN106402541A (en) * | 2016-09-23 | 2017-02-15 | 中国航空规划设计研究总院有限公司 | Sealing structure for independent support and pressure bearing shell in wind tunnel |
| CN206038271U (en) * | 2016-08-24 | 2017-03-22 | 湖北三江航天红阳机电有限公司 | Angle of attack mechanism for wind tunnel test and bellows sectional type supporting mechanism thereof |
| CN206361346U (en) * | 2016-12-30 | 2017-07-28 | 中国航天空气动力技术研究院 | A kind of attack angle mechanism supporting upright column structure |
-
2020
- 2020-05-08 CN CN202010380215.6A patent/CN111426447B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04315024A (en) * | 1991-04-11 | 1992-11-06 | Mitsubishi Heavy Ind Ltd | Model injection/ejection device for avoiding shock load |
| JPH05172691A (en) * | 1991-12-25 | 1993-07-09 | Ishikawajima Harima Heavy Ind Co Ltd | Shock wave wind tunnel tester |
| CN103115746A (en) * | 2013-01-21 | 2013-05-22 | 中国科学院力学研究所 | Shock tunnel module support device |
| CN106153288A (en) * | 2016-08-24 | 2016-11-23 | 湖北三江航天红阳机电有限公司 | A kind of wind tunnel test attack angle mechanism and corrugated tube stagewise supporting mechanism thereof |
| CN206038271U (en) * | 2016-08-24 | 2017-03-22 | 湖北三江航天红阳机电有限公司 | Angle of attack mechanism for wind tunnel test and bellows sectional type supporting mechanism thereof |
| CN106402541A (en) * | 2016-09-23 | 2017-02-15 | 中国航空规划设计研究总院有限公司 | Sealing structure for independent support and pressure bearing shell in wind tunnel |
| CN206361346U (en) * | 2016-12-30 | 2017-07-28 | 中国航天空气动力技术研究院 | A kind of attack angle mechanism supporting upright column structure |
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| CN111426447A (en) | 2020-07-17 |
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