CN108253219A - A kind of adjustable hatchcover testing stand air inlet section of airflow direction - Google Patents
A kind of adjustable hatchcover testing stand air inlet section of airflow direction Download PDFInfo
- Publication number
- CN108253219A CN108253219A CN201711349048.3A CN201711349048A CN108253219A CN 108253219 A CN108253219 A CN 108253219A CN 201711349048 A CN201711349048 A CN 201711349048A CN 108253219 A CN108253219 A CN 108253219A
- Authority
- CN
- China
- Prior art keywords
- adjustable
- bulkhead
- snorkel
- air inlet
- hatchcover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Air-Flow Control Members (AREA)
Abstract
The present invention relates to a kind of adjustable hatchcover testing stand air inlet section of airflow direction, including preceding bulkhead, middle bulkhead, rear bulkhead, snorkel, flow distribution plate and regulating device；Preceding bulkhead, middle bulkhead, rear bulkhead are installed on the outside of snorkel, and flow distribution plate is fixedly mounted on inside snorkel, and flow distribution plate in-plane is consistent with ventilation tube axis direction, and snorkel is divided into two parts up and down.The present invention realizes the accurate adjusting for adjusting Board position by using the regulating device of threaded adjusting and fixes, and solves the problems, such as that existing scheme degree of regulation is not high；By using two sets of regulating device independent controls, two adjustable plates, the independent control of different temperatures air-flow is realized, solves the problems, such as existing scheme temperature field degree of regulation.
Description
Technical field
The present invention relates to a kind of experimental rig, especially a kind of adjustable hatchcover testing stand air inlet section of airflow direction.
Background technology
Design experiment platform is needed to carry out high/low temperature fatigue test to hatchcover during aircraft development, testing stand is mainly by air inlet
Section, test section and exhaust section composition.Air inlet section needs to adjust gas flow to reach regulation and control test section temperature as gas input
Spend the effect of field.
General method be inside the extension and contraction control air inlet section by external adjusting rod adjustable plate deflection different angle come
Air-flow is adjusted, since the stroke of adjusting rod cannot be precisely controlled and cannot preferably be fixed, internal regulation plate only has one in addition
Block, the effect for causing to adjust temperature field is not fine.The sealing effect of air inlet section and test section is bad simultaneously also influences experiment knot
Fruit.
With the raising of test requirements document, need more to be stablized fine adjusting, while improve sealing to input air-flow
It is required that.
Invention content
There are problems that fine-tune for the prior art, the present invention, which provides, can carry out inlet air flow more to stablize
Fine adjusting, while the adjustable hatchcover testing stand air inlet section of airflow direction for improving sealing performance.
The technical solution that the present invention takes is：A kind of adjustable hatchcover testing stand air inlet section of airflow direction, including preceding bulkhead
1st, middle bulkhead 3, rear bulkhead 4, snorkel 2, flow distribution plate 5 and regulating device 6；Preceding bulkhead 1, middle bulkhead 3, rear bulkhead 4 are installed in
2 outside of snorkel, flow distribution plate 5 are fixedly mounted on inside snorkel 2,5 in-plane of flow distribution plate and 2 axis direction one of snorkel
It causes, snorkel 2 is divided into two parts up and down, regulating device 6 includes handle 7, taper sheath 8, threaded adjusting bar 9, lower rotary shaft branch
Seat 10, adjustable plate 11, ball hinged support 12, upper shaft seating 13, lower rotary shaft bearing 10 are mounted on flow distribution plate 5, upper shaft seating
13 are mounted on middle bulkhead 3, and adjustable plate 11 is fixedly mounted on upper and lower shaft seating, and 2 outside of snorkel is equipped with taper sheath
8, with taper sheath 8 by thread fitting, one end is connect threaded adjusting bar 9 with handle 7, and the other end is by ball hinged support 12 with adjusting
Section plate 11 connects.
Above-mentioned regulating device 6 has two sets, respectively positioned at 5 both sides of flow distribution plate.
Above-mentioned snorkel is divide into upper part and lower part by flow distribution plate 5, is controlled respectively using individual a set of regulating device 6
System.
4 rear end of bulkhead is equipped with seal groove after above-mentioned, is sealed with extraneous 14 lap-joint of kuppe by sealing strip 15.
Above-mentioned seal groove is dovetail groove.
Above-mentioned sealing strip is Ω types.
Advantageous effect：The present invention realizes the accurate adjusting for adjusting Board position by using the regulating device of threaded adjusting bar
And fixation, solve the problems, such as that existing scheme degree of regulation is not high.By designing seal groove in faying surface and being sealed using Ω types
Item meets the airtight requirement of air inlet section and test section, solves traditional adhering and sealing band and easily comes off under high temperature environment and loses
The problem of effect.By using two sets of regulating device independent controls, two adjustable plates, the independent control of different temperatures air-flow is realized
System, solves the problems, such as existing scheme temperature field degree of regulation.Present invention accomplishes adjusting of the hatchcover testing stand air inlet section to air-flow
It is required that and seal request, the hatchcover testing stand air inlet section for Multiple Type aircraft provide a kind of general scheme.
Description of the drawings
Fig. 1 is air inlet section topology layout schematic diagram；
Fig. 2 gas distribution regulating device schematic diagrames；
Fig. 3 Principles of Regulation schematic diagrames；
Fig. 4 is kuppe sealing schematic diagram；
Wherein, 1：Preceding bulkhead；2：Snorkel；3：Middle bulkhead；4：Bulkhead afterwards；5：Flow distribution plate；6：Regulating device；7：Handle；
8：Taper sheath；9：Threaded adjusting bar；10：Lower rotary shaft bearing；11：Adjustable plate；12：Ball hinged support；13：Upper shaft seating；14：
Kuppe；15：Sealing strip.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings of the specification.
A kind of adjustable hatchcover testing stand air inlet section of airflow direction, including preceding bulkhead 1, middle bulkhead 3, rear bulkhead 4, snorkel
2nd, flow distribution plate 5 and regulating device 6；Preceding bulkhead 1, middle bulkhead 3, rear bulkhead 4 are installed in 2 outside of snorkel, and flow distribution plate 5 fixes peace
Inside snorkel 2,5 in-plane of flow distribution plate is consistent with 2 axis direction of snorkel, and snorkel 2 is divided into two parts up and down,
Regulating device 6 include handle 7, taper sheath 8, threaded adjusting bar 9, lower rotary shaft bearing 10, adjustable plate 11, ball hinged support 12, on
Shaft seating 13, lower rotary shaft bearing 10 are mounted on flow distribution plate 5, and upper shaft seating 13 is mounted on middle bulkhead 3, and adjustable plate 11 is solid
Dingan County is on upper and lower shaft seating, and 2 outside of snorkel is equipped with taper sheath 8, and threaded adjusting bar 9 passes through with taper sheath 8
Thread fitting, one end are connect with handle 7, and the other end is connect by ball hinged support 12 with adjustable plate 11, and air-flow passes through external feed stream
Pipe flows through snorkel 2 and enters kuppe 14, as shown in figures 1-4.
Regulating device 6 has two sets, and respectively positioned at 5 both sides of flow distribution plate, flow distribution plate 5 is arranged on the centre position of snorkel 2, will
The space of snorkel 2 is divided into two parts up and down, and two sets of independent regulating devices 6 make the air-flow point of upper and lower two parts different temperatures
It is not controlled, it does not interfere with each other, as shown in Figure 2.
During adjusting, handle 7 is rotated clockwise, threaded adjusting bar 9 exists to 2 medial motion of snorkel, 9 end of threaded adjusting bar
It is slided in ball hinged support 12, therefore adjustable plate 11 will be to diagram left side deflection certain angle.Handle 7 is similarly rotated counterclockwise, is adjusted
Section plate 11 deflects negative direction.Pass through the rotating cycle of handle 7, the design pitch of screw thread, 11 turns of ball hinged support 12 and adjustable plate
The data such as the distance of axis can accurately calculate the deflection angle of adjustable plate 11, realize and precisely adjust.Taper sheath 8 and spiral shell simultaneously
Line adjusting rod 9 can be such that adjustable plate is not shaken back and forth when aerodynamic force is born by screw thread, realize that position is fixed.Pass through
Upper and lower two sets of regulating devices 6 can realize the independent control of different temperatures air-flow, as shown in Figure 3.
Bulkhead 4 is equipped with seal groove afterwards, is sealed with extraneous 14 lap-joint of kuppe by sealing strip 15.Kuppe 14 closes
Sealing strip can be oppressed during conjunction, sealing strip meets airtight requirement by deformation, as shown in Figure 4.
Dovetail groove is designed as in order to preferably be sealed above-mentioned seal groove, above-mentioned sealing strip is designed as Ω type sealing strips.
Claims (6)
1. a kind of adjustable hatchcover testing stand air inlet section of airflow direction, it is characterised in that：Including preceding bulkhead (1), middle bulkhead (3),
Bulkhead (4), snorkel (2), flow distribution plate (5) and regulating device (6) afterwards；Preceding bulkhead (1), middle bulkhead (3), rear bulkhead (4) are pacified
On the outside of snorkel (2), flow distribution plate (5) is fixedly mounted on snorkel (2) inside, flow distribution plate (5) in-plane and snorkel
(2) axis direction is consistent, by snorkel (2) be divided into up and down two parts, regulating device (6) including handle (7), taper sheath (8),
Threaded adjusting bar (9), lower rotary shaft bearing (10), adjustable plate (11), ball hinged support (12), upper shaft seating (13), lower rotary shaft branch
Seat (10) is on flow distribution plate (5), and on middle bulkhead (3), adjustable plate (11) is fixedly mounted on upper shaft seating (13)
On upper and lower shaft seating, taper sheath (8) is installed on the outside of snorkel (2), threaded adjusting bar (9) passes through with taper sheath (8)
Thread fitting, one end are connect with handle (7), and the other end is connect by ball hinged support (12) with adjustable plate (11).
2. the adjustable hatchcover testing stand air inlet section of airflow direction according to claim 1, it is characterised in that：Regulating device has
2 sets, respectively positioned at flow distribution plate (5) both sides.
3. the adjustable hatchcover testing stand air inlet section of airflow direction according to claim 1, it is characterised in that：Regulating device by
Handle, threaded adjusting bar, taper sheath, ball hinged support and adjustable plate composition.Taper sheath is matched with threaded adjusting bar by screw thread
It closes the accurate angle adjusting for realizing adjustable plate and position is fixed.
4. the adjustable hatchcover testing stand air inlet section of airflow direction according to claim 1, it is characterised in that：Bulkhead (4) afterwards
Equipped with seal groove, it is sealed with extraneous kuppe (14) lap-joint by sealing strip (15).
5. the adjustable hatchcover testing stand air inlet section of airflow direction according to claim 3, it is characterised in that：Seal groove is swallow
Stern notch.
6. the adjustable hatchcover testing stand air inlet section of airflow direction according to claim 3, it is characterised in that：Sealing strip is Ω
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711349048.3A CN108253219B (en) | 2017-12-15 | 2017-12-15 | Air inlet section of hatch cover test bed with adjustable airflow direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711349048.3A CN108253219B (en) | 2017-12-15 | 2017-12-15 | Air inlet section of hatch cover test bed with adjustable airflow direction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108253219A true CN108253219A (en) | 2018-07-06 |
| CN108253219B CN108253219B (en) | 2020-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711349048.3A Active CN108253219B (en) | 2017-12-15 | 2017-12-15 | Air inlet section of hatch cover test bed with adjustable airflow direction |
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| CN (1) | CN108253219B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530595A (en) * | 2019-07-19 | 2019-12-03 | 南京航空航天大学 | A kind of plane cascade test platform test section inlet system of the adjustable angle of attack |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3637760A1 (en) * | 1986-11-04 | 1988-05-11 | Rissmann Horst G | Arrangement for checking and measuring threads and their rotationally symmetric, coaxial profile as well as their flatness relative to all other diameters, surfaces, tapers, threads and bores on one and the same turned part in one clamping operation |
| CN102042902A (en) * | 2010-11-18 | 2011-05-04 | 上海工程技术大学 | Test piece fixing device of thermal state wind tunnel erosion test |
| CN106323585A (en) * | 2016-11-10 | 2017-01-11 | 中国航天空气动力技术研究院 | Pore plate capable of adjusting aperture online |
-
2017
- 2017-12-15 CN CN201711349048.3A patent/CN108253219B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3637760A1 (en) * | 1986-11-04 | 1988-05-11 | Rissmann Horst G | Arrangement for checking and measuring threads and their rotationally symmetric, coaxial profile as well as their flatness relative to all other diameters, surfaces, tapers, threads and bores on one and the same turned part in one clamping operation |
| CN102042902A (en) * | 2010-11-18 | 2011-05-04 | 上海工程技术大学 | Test piece fixing device of thermal state wind tunnel erosion test |
| CN106323585A (en) * | 2016-11-10 | 2017-01-11 | 中国航天空气动力技术研究院 | Pore plate capable of adjusting aperture online |
Non-Patent Citations (1)
| Title |
|---|
| 秦远珍: "某机座舱盖加温加载疲劳载荷谱", 《疲劳与断裂2000——第十届全国疲劳与断裂学术会议论文集》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530595A (en) * | 2019-07-19 | 2019-12-03 | 南京航空航天大学 | A kind of plane cascade test platform test section inlet system of the adjustable angle of attack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108253219B (en) | 2020-01-14 |
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