CN106370387B - The big attack angle mechanism of arc - Google Patents
The big attack angle mechanism of arc Download PDFInfo
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- CN106370387B CN106370387B CN201610974509.5A CN201610974509A CN106370387B CN 106370387 B CN106370387 B CN 106370387B CN 201610974509 A CN201610974509 A CN 201610974509A CN 106370387 B CN106370387 B CN 106370387B
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- Prior art keywords
- arc
- attack
- sliding block
- guide rail
- bracket
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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 kind of big attack angle mechanisms of wind tunnel test arc comprising motor, upper mounted plate, arc-shaped rack, arc-shaped guide rail, false strut, bottom plate, retarder, gear wheel, potentiometer, pinion gear, connector, arc bracket and sliding block；Motor, retarder, pinion gear, gear wheel, connector and potentiometer are mounted on upper mounted plate, upper mounted plate is fixed on wind-tunnel on the wall of hole, sliding block is installed on connector, is configured with arc-shaped guide rail and arc-shaped rack on arc bracket, sliding block is matched with arc-shaped guide rail.Bottom plate one end is fixed under wind-tunnel on the wall of hole, the other end is connect by sliding block with the arc-shaped guide rail on arc bracket, and motor can drive pinion rotation by retarder, and pinion gear is engaged with gear wheel, gear wheel is engaged with arc-shaped rack, and false strut is mounted on arc bracket.Structure of the invention is rationally simple, easy for installation, and precision is high, can satisfy the needs of wind-tunnel test at high attack angle.
Description
Technical field
The present invention relates to the big attack angle mechanisms of arc, belong to wind tunnel test field, mainly make arc by gear and rack gear
Shape holder pivots obtain the different angle of attack of model on bracket, feed back angle of attack angle by potentiometer, this mechanism can obtain big model
The range of angles of attack enclosed, and be capable of real-time acquisition.
Background technique
The angle of attack is also referred to as the angle of attack, is aerodynamic parameter important in wind tunnel test, required measurement in present aircraft wind tunnel test
Range of angles of attack it is big, data accuracy requires high, and the range of angles of attack that the traditional attack angle mechanism of wind-tunnel is walked is small (- 15 ° to 15 °),
It is difficult to adjust, accuracy is not high, and there is an urgent need to a kind of mechanisms for being able to achieve a wide range of angle of attack.
This attack angle mechanism is able to achieve -5 ° to 37 ° of range of angles of attack, is easy to adjust, and accuracy is high, is able to satisfy present aircraft
The needs of a wide range of angle of attack of wind tunnel test.
Summary of the invention
The present invention provides a kind of big attack angle mechanism of arc, solves the range of angles of attack that attack angle mechanism traditional in the past is walked
It is small, it is difficult to adjust, the not high problem of accuracy.
The big attack angle mechanism of arc of the invention includes motor, upper mounted plate, arc-shaped rack, arc-shaped guide rail, false strut, lower solid
Fixed board, retarder, gear wheel, potentiometer, pinion gear, connector, arc bracket and sliding block；It is motor, retarder, pinion gear, big
Gear, connector and potentiometer are mounted on upper mounted plate, and upper mounted plate is fixed on wind-tunnel on the wall of hole, are equipped on connector
Sliding block is configured with arc-shaped guide rail and arc-shaped rack on arc bracket, and sliding block is matched with arc-shaped guide rail, and bottom plate one end is fixed
Under wind-tunnel on the wall of hole, the other end is connect by sliding block with the arc-shaped guide rail on arc bracket, and motor can pass through retarder band
Dynamic pinion rotation, pinion gear are engaged with gear wheel, and gear wheel is engaged with arc-shaped rack, and false strut is mounted on arc bracket.
It is preferred that walking the different angles of attack by mechanism, false strut can be utilized and potentiometer obtains angle of attack degree and potentiometer is anti-
The fit correlation formula of feedthrough voltage, to obtain angle of attack angle by different feedback voltages during wind tunnel test.
The invention has the advantages that
1, a kind of big attack angle mechanism of arc of the present invention, the range of angles of attack realized are big.
2, a kind of big attack angle mechanism of arc of the present invention, entire mechanism accuracy is higher than original mechanism, as a result reliable and stable.
3, a kind of big attack angle mechanism of arc of the present invention adjusts convenient and efficient than Conventional mechanisms.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the big attack angle mechanism of arc.
Specific embodiment
Below 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 strut 5, bottom plate 6, retarder 7, gear wheel 8, potentiometer 9, pinion gear 10, connector 11, arc bracket 12 and sliding block；
Motor 1, retarder 7, pinion gear 10, gear wheel 8, connector 11, potentiometer 9 are installed on upper mounted plate 2, on
Fixed plate 2 is fixed on wind-tunnel on the wall of hole, and sliding block 13 and arc-shaped rack 3 are equipped on connector 11, and connector 11 passes through sliding block
It is connect with the arc-shaped guide rail 4 on arc bracket 12,6 one end of bottom plate is fixed under wind-tunnel on the wall of hole, and the other end passes through sliding block
It is connect with the arc-shaped guide rail 4 on arc bracket 12, motor 1 is engaged by retarder 7 and the drive of pinion gear 10 with pinion gear 10
Gear wheel 8 rotates, and gear wheel 8 drives the arc-shaped rack 3 engaged to rotate, so that arc bracket 12 is along arc-shaped guide rail 4
Track is mobile, and the model on the false strut 5 on arc bracket 12 can be made to have the different angles of attack.
Potentiometer 9 can be fed back the rotational angle of arc bracket 12 and false strut 5 by way of voltage, in turn
Obtain the fitting formula of voltage and angle.It is different by potentiometer 9 using this fitting formula during test at high attack angle
Feedback voltage obtains the angle of attack angle of false strut 5.Mechanism can be realized -5 ° to 37 ° of range of angles of attack, fly now to meet
The needs of a wide range of angle of attack of row device wind tunnel test.
Claims (2)
1. a kind of big attack angle mechanism of arc, it is characterised in that: including motor, upper mounted plate, arc-shaped rack, arc-shaped guide rail, false branch
Bar, bottom plate, retarder, gear wheel, potentiometer, pinion gear, connector, arc bracket and sliding block；
Motor, retarder, pinion gear, gear wheel, connector and potentiometer are mounted on upper mounted plate, and upper mounted plate is fixed on wind
On hole on the wall of hole, sliding block is installed on connector, is configured with arc-shaped guide rail and arc-shaped rack on arc bracket, sliding block is led with arc
Rail matches, and bottom plate one end is fixed under wind-tunnel on the wall of hole, and the other end passes through the arc-shaped guide rail on sliding block and arc bracket
Connection, motor can drive pinion rotation by retarder, and pinion gear is engaged with gear wheel, and gear wheel is nibbled with arc-shaped rack
Close, false strut is mounted on arc bracket, arc bracket be it is arc-shaped greater than half, pass through the arc configured on arc bracket
The effect of shape guide rail and arc-shaped rack can be realized -5 ° to 37 ° of range of angles of attack.
2. the big attack angle mechanism of arc according to claim 1, it is characterised in that: walk the different angles of attack, energy by mechanism
The fit correlation formula of angle of attack degree and potentiometer feedback voltage is obtained using false strut and potentiometer, thus during 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 CN106370387A (en) | 2017-02-01 |
| CN106370387B true 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 |
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| CN (1) | CN106370387B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110207939B (en) * | 2019-06-24 | 2021-03-26 | 中国航天空气动力技术研究院 | Test mechanism for changing average attack angle of model in real time |
| CN114034463B (en) * | 2022-01-10 | 2022-03-25 | 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 |
| CN116045153B (en) * | 2022-10-31 | 2024-10-18 | 重庆大学 | Gear rack type continuous pitch angle changing mechanism |
Citations (6)
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|---|---|---|---|---|
| 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 |
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| 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 |
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2016
- 2016-11-04 CN CN201610974509.5A patent/CN106370387B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN106370387A (en) | 2017-02-01 |
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