CN106370387A - Arc-shaped large attack angle mechanism - Google Patents
Arc-shaped large attack angle mechanism Download PDFInfo
- Publication number
- CN106370387A CN106370387A CN201610974509.5A CN201610974509A CN106370387A CN 106370387 A CN106370387 A CN 106370387A CN 201610974509 A CN201610974509 A CN 201610974509A CN 106370387 A CN106370387 A CN 106370387A
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- Prior art keywords
- arc
- shaped
- slide block
- attack
- guide rail
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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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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a wind tunnel test arc-shaped large attack angle mechanism which comprises a motor, an upper fixation plate, an arc-shaped rack, an arc-shaped guide rail, a false strut, a lower fixation plate, a reducer, a large gear, a potentiometer, a small gear, a connector, an arc-shaped bracket and a slide block. The motor, the reducer, the large gear, the potentiometer, the small gear and the connector are arranged on the upper fixation plate. The upper fixation plate is fixed on the wall of a wind tunnel. The slide block is arranged on the connector. The arc-shaped rack and the arc-shaped guide rail are arranged on the arc-shaped bracket. The slide block matches the arc-shaped guide rail. One end of the lower fixation plate is fixed on the lower wall of the wind tunnel, and the other end is connected with the arc-shaped guide rail on the arc-shaped bracket through the slide block. The motor can drive the small gear to rotate through the reducer. The small gear is engaged with the large gear. The large gear is engaged with the arc-shaped rack. The false strut is arranged on the arc-shaped bracket. The wind tunnel test arc-shaped large attack angle mechanism provided by the invention has the advantages of simple structure, convenient installation and high precision, and can meet the needs of a wind tunnel large attack angle test.
Description
Technical field
The present invention relates to the big attack angle mechanism of arc, belong to wind tunnel test field, mainly arc is made by gear and tooth bar
Shape holder pivots, obtain the different angle of attack of model on support, feed back angle of attack angle by potentiometer, and this mechanism is obtained in that big model
The range of angles of attack enclosing, and can Real-time Collection.
Background technology
The angle of attack is also referred to as the angle of attack, is important aerodynamic parameter in wind tunnel test, required measurement in present aircraft wind tunnel test
Range of angles of attack big, data accuracy has high demands, the range of angles of attack that the traditional attack angle mechanism of wind-tunnel is walked little (- 15 ° to 15 °),
It is difficult to adjust, degree of accuracy is not high, in the urgent need to a kind of mechanism enabling the angle of attack on a large scale.
This attack angle mechanism enables -5 ° to 37 ° of range of angles of attack, easily dimmable, and degree of accuracy is high, can meet present aircraft
The needs of the wind tunnel test angle of attack on a large scale.
Content of the invention
The invention provides a kind of big attack angle mechanism of arc, the range of angles of attack that before solving, traditional attack angle mechanism is walked
Little it is difficult to adjust, the not high problem of degree of accuracy.
The big attack angle mechanism of arc of the present invention includes motor, upper mounted plate, arc-shaped rack, arc-shaped guide rail, false pole, lower solid
Fixed board, decelerator, gear wheel, potentiometer, little gear, connector, arc support and slide block；Motor, decelerator, little gear, big
Gear, connector and potentiometer are arranged on upper mounted plate, and upper mounted plate is fixed on hole wall on wind-tunnel, and connector is provided with
Slide block, arc support is configured with arc-shaped guide rail and arc-shaped rack, and slide block is matched with arc-shaped guide rail, and bottom plate one end is fixed
On hole wall under wind-tunnel, the other end is connected with the arc-shaped guide rail on arc support by slide block, and motor can pass through decelerator band
Dynamic pinion rotation, little gear is engaged with gear wheel, and gear wheel is engaged with arc-shaped rack, and false pole is arranged on arc support.
Preferably the different angles of attack are walked by mechanism, just can obtain the angle of attack number of degrees using false pole and potentiometer and potentiometer is anti-
The fit correlation formula of feedthrough voltage, thus during wind tunnel test, obtain angle of attack angle by different feedback voltages.
The invention has the advantage that
1st, the big attack angle mechanism of a kind of arc of the present invention, the range of angles of attack realized is big.
2nd, the big attack angle mechanism of a kind of arc of the present invention, whole mechanism accuracy is higher than original mechanism, and result is reliable and stable.
3rd, the big attack angle mechanism of a kind of arc of the present invention, more convenient and swift than Conventional mechanisms adjust.
Brief description
Fig. 1 is the structural representation of the big attack angle mechanism of arc.
Specific embodiment
With reference to embodiment, the invention will be further described, but embodiment is not limitation of the invention.
As shown in figure 1, a kind of big attack angle mechanism of arc, including motor 1, upper mounted plate 2, arc-shaped rack 3, arc-shaped guide rail 4,
False pole 5, bottom plate 6, decelerator 7, gear wheel 8, potentiometer 9, little gear 10, connector 11, arc support 12 and slide block；
Motor 1, decelerator 7, little gear 10, gear wheel 8, connector 11, potentiometer 9 are installed on upper mounted plate 2, on
Fixed plate 2 is fixed on hole wall on wind-tunnel, and connector 11 is provided with slide block 13 and arc-shaped rack 3, and connector 11 passes through slide block
It is connected with the arc-shaped guide rail 4 on arc support 12, bottom plate 6 one end is fixed on hole wall under wind-tunnel, the other end passes through slide block
It is connected with the arc-shaped guide rail 4 on arc support 12, motor 1 is engaged with little gear 10 by decelerator 7 and little gear 10 drive
Gear wheel 8 rotates, and gear wheel 8 drives the arc-shaped rack 3 engaging to rotate so that arc support 12 is along arc-shaped guide rail 4
Track is moved, and the model on the false pole 5 on arc support 12 just can be made to have the different angles of attack.
The rotational angle of arc support 12 and false pole 5 can be fed back by potentiometer 9 by the form of voltage, and then
Obtain the fitting formula of voltage and angle.During test at high attack angle, using this fitting formula, different by potentiometer 9
Feedback voltage obtains the angle of attack angle of false pole 5.Mechanism is capable of -5 ° to 37 ° of range of angles of attack, thus meet flying now
The needs of the row device wind tunnel test angle of attack on a large scale.
Claims (2)
1. a kind of big attack angle mechanism of arc it is characterised in that: include motor, upper mounted plate, arc-shaped rack, arc-shaped guide rail, false
Bar, bottom plate, decelerator, gear wheel, potentiometer, little gear, connector, arc support and slide block；
Motor, decelerator, little gear, gear wheel, connector and potentiometer are arranged on upper mounted plate, and upper mounted plate is fixed on wind
On hole wall on hole, connector is provided with slide block, arc support is configured with arc-shaped guide rail and arc-shaped rack, slide block is led with arc
Rail matches.Bottom plate one end is fixed on hole wall under wind-tunnel, and the other end passes through the arc-shaped guide rail on slide block and arc support
Connect, motor can drive pinion rotation by decelerator, and little gear is engaged with gear wheel, and gear wheel is nibbled with arc-shaped rack
Close, false pole is arranged on arc support.
2. the big attack angle mechanism of arc according to claim 1 it is characterised in that: the different angles of attack are walked by mechanism, with regard to energy
Obtain the fit correlation formula of the angle of attack number of degrees and potentiometer feedback voltage using false pole and potentiometer, thus in process of the test,
Angle of attack angle is obtained by different feedback voltages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610974509.5A CN106370387B (en) | 2016-11-04 | 2016-11-04 | The big attack angle mechanism of arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610974509.5A CN106370387B (en) | 2016-11-04 | 2016-11-04 | The big attack angle mechanism of arc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106370387A true CN106370387A (en) | 2017-02-01 |
| CN106370387B CN106370387B (en) | 2019-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610974509.5A Active CN106370387B (en) | 2016-11-04 | 2016-11-04 | The big attack angle mechanism of arc |
Country Status (1)
| Country | Link |
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| CN (1) | CN106370387B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621349A (en) * | 2017-08-29 | 2018-01-23 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of wind-tunnel half model varied angle mechanism |
| CN110207939A (en) * | 2019-06-24 | 2019-09-06 | 中国航天空气动力技术研究院 | A kind of real-time test mechanism for changing model mean angle of attack |
| CN114034463A (en) * | 2022-01-10 | 2022-02-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Single-point abdominal support device of two-stage attack angle mechanism and control method |
| CN116045153A (en) * | 2022-10-31 | 2023-05-02 | 重庆大学 | Gear rack type continuous pitch angle changing mechanism |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04120434A (en) * | 1990-09-11 | 1992-04-21 | Mitsubishi Heavy Ind Ltd | Model supporting mechanism of wind tunnel testing apparatus |
| CN203414254U (en) * | 2013-07-24 | 2014-01-29 | 中国人民解放军空军工程大学 | Single-reflow closed-wind tunnel angle-of-attack mechanism |
| CN104359648A (en) * | 2014-10-17 | 2015-02-18 | 北京航天益森风洞工程技术有限公司 | Three-DOF (degree of freedom) angle-of-attack mechanism for hypersonic wind tunnel |
| CN205067048U (en) * | 2015-10-15 | 2016-03-02 | 中国航天空气动力技术研究院 | Angle of attack safe operation protection device |
| CN105444980A (en) * | 2015-12-29 | 2016-03-30 | 中国航天空气动力技术研究院 | Angle control device for tunnel attack-angle mechanism |
| CN105466662A (en) * | 2015-12-11 | 2016-04-06 | 湖北三江航天红阳机电有限公司 | Wind tunnel angle-of-attack adjusting device |
| CN106017853A (en) * | 2016-06-29 | 2016-10-12 | 湖北三江航天红阳机电有限公司 | Attack angle adjusting device |
| CN206223394U (en) * | 2016-11-04 | 2017-06-06 | 中国航天空气动力技术研究院 | The big attack angle mechanism of arc |
-
2016
- 2016-11-04 CN CN201610974509.5A patent/CN106370387B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04120434A (en) * | 1990-09-11 | 1992-04-21 | Mitsubishi Heavy Ind Ltd | Model supporting mechanism of wind tunnel testing apparatus |
| CN203414254U (en) * | 2013-07-24 | 2014-01-29 | 中国人民解放军空军工程大学 | Single-reflow closed-wind tunnel angle-of-attack mechanism |
| CN104359648A (en) * | 2014-10-17 | 2015-02-18 | 北京航天益森风洞工程技术有限公司 | Three-DOF (degree of freedom) angle-of-attack mechanism for hypersonic wind tunnel |
| CN205067048U (en) * | 2015-10-15 | 2016-03-02 | 中国航天空气动力技术研究院 | Angle of attack safe operation protection device |
| CN105466662A (en) * | 2015-12-11 | 2016-04-06 | 湖北三江航天红阳机电有限公司 | Wind tunnel angle-of-attack adjusting device |
| CN105444980A (en) * | 2015-12-29 | 2016-03-30 | 中国航天空气动力技术研究院 | Angle control device for tunnel attack-angle mechanism |
| CN106017853A (en) * | 2016-06-29 | 2016-10-12 | 湖北三江航天红阳机电有限公司 | Attack angle adjusting device |
| CN206223394U (en) * | 2016-11-04 | 2017-06-06 | 中国航天空气动力技术研究院 | The big attack angle mechanism of arc |
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| Title |
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| 居后鸿 等: "攻角传感器的应用与分析", 《航空计算技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621349A (en) * | 2017-08-29 | 2018-01-23 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of wind-tunnel half model varied angle mechanism |
| CN107621349B (en) * | 2017-08-29 | 2024-04-12 | 中国航空工业集团公司沈阳空气动力研究所 | Wind tunnel half-mode angle-changing mechanism |
| CN110207939A (en) * | 2019-06-24 | 2019-09-06 | 中国航天空气动力技术研究院 | A kind of real-time test mechanism for changing model mean angle of attack |
| CN114034463A (en) * | 2022-01-10 | 2022-02-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Single-point abdominal support device of two-stage attack angle mechanism and control method |
| CN116045153A (en) * | 2022-10-31 | 2023-05-02 | 重庆大学 | Gear rack type continuous pitch angle changing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106370387B (en) | 2019-11-08 |
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