CN206772549U - A kind of wind-tunnel back support mechanism of achievable yaw angle consecutive variations - Google Patents
A kind of wind-tunnel back support mechanism of achievable yaw angle consecutive variations Download PDFInfo
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- CN206772549U CN206772549U CN201720182493.4U CN201720182493U CN206772549U CN 206772549 U CN206772549 U CN 206772549U CN 201720182493 U CN201720182493 U CN 201720182493U CN 206772549 U CN206772549 U CN 206772549U
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Abstract
A kind of wind-tunnel back support mechanism of achievable yaw angle consecutive variations, the mechanism one end is connected with the support (9) of the variable angle of attack, the other end can realize yaw angle consecutive variations by pin back support model by the angle voussoir (4) of different angle.Chief component has support arm (1), extension (2), pressing plate (3), angle voussoir (4), rotating shaft (5), rotor (6) and pull bar (7).It realizes that the principle of yaw angle consecutive variations is that respectively have a groove (61) and breach (51) in rotor (6) and rotating shaft (5), between which wedges the angle voussoir (4) of different angle, rotor (6) is rotated a certain angle with respect to rotating shaft (5) and realize yaw angle, the angle voussoir (4) for the yaw angle processing different angle realized as needed, so as to which yaw angle consecutive variations can be realized.
Description
Technical field
The utility model is to belong to experimental aerodynamics field, is related to and transformation model yaw angle is realized in high-speed wind tunnel
A kind of mechanism.
Background technology
The lateral aerodynamic characteristics experiment of aircraft is an important wind tunnel test, and yaw angle mechanism is implementation model posture
The mechanism that angle laterally converts, conventional side-slipping mechanism are the forms of a covering of the fan, are provided with different column pin holes on covering of the fan, bearing with not
Same column pin hole, which coordinates, realizes different yaw angles, therefore its side-slip angle realized is designed after machining and can not changed, if
There is new yaw angle experiment demand then to redesign processing, increase cost and test period, it is impossible to adapt to side-slip angle demand
Diversity.
Utility model content
The technical problems to be solved in the utility model is：Overcome the deficiencies in the prior art, the utility model provide one kind
The wind-tunnel back support mechanism of yaw angle consecutive variations can be achieved, overcome existing side-slipping mechanism not adapt to side-slip angle demand various
The deficiency of property, the utility model realize that back support yaw angle continuously becomes by the angle voussoir of rotor and rotating shaft and different angle
Change.
The utility model technical scheme to be taken is：A kind of wind-tunnel back support machine of achievable yaw angle consecutive variations
Structure, including：Support arm, pressing plate, angle voussoir, rotating shaft, rotor；Rotor includes cylinder and linking arm, is structure as a whole, cylinder
End face is provided with groove, is provided with through hole in the middle part of cylinder, and linking arm is located at column side face and vertical with through-bore axis, and linking arm end has
Adpting flange；Rotating shaft is structure as a whole, including axle body, sleeve, and axle body is located at sleeve lateral wall, the axis of axle body and the axis of sleeve
Vertically；Support arm one end is connected with adpting flange；Rotor is enclosed on axle body by through hole, and the breach bottom surface of axle body end is with rotating
Groove floor on body is concordant；The angle voussoir of different angle be arranged on groove in, both sides respectively with recess sidewall, breach side wall
It is adjacent to, makes to form different angle β between the axis of rotor linking arm and the axis of sleeve；Pressing plate compression angle voussoir, two
End is separately fixed on rotor and rotating shaft；Sleeve is enclosed on connecting pole prominent on support, fixed between sleeve and support to connect
Connect.
Also include pull bar, key；Pull bar includes head circular cone and cylindrical bar, is structure as a whole, and cylindrical bar is located at head circular cone
In the middle part of bottom surface, keyway is carried on cylindrical bar, head circular cone edge is provided with recess vertically；Support connecting pole is inserted from one end of sleeve
Enter, end is stuck at the back-up ring in sleeve other end port, and the cylindrical bar of pull bar inserts from the other end of sleeve, by installed in
Key and support assorted in keyway, the bulge-structure that sleeve ends stretch out along wall are inserted in recess so that sleeve, support connection
Do not rotated between post.
The angle voussoir is wedge structure, angle α=α between two sides of each angle voussoir0+ β, wherein, α0For
Angle during β=0 ° between two sides of angle voussoir, 0.2 °≤α0≤ 1 °, 0 °≤β≤30 °.
The extension of different length is connected between the support arm and rotor.
The utility model compared with prior art the advantages of be：
(1) the utility model is rotated to an angle around the shaft by rotor, and by wedging the angle wedge of respective angles
Block, so as to realize corresponding side-slip angle, due to the fixed pin holes of no conventional covering of the fan form side-slipping mechanism, therefore it can realize
The consecutive variations of yaw angle, meet experiment to the multifarious demand of yaw angle；
(2) rotor can be rotated continuously around the shaft in the utility model, therefore can meet that special test fine setting is breakked away
The demand of angle, and conventional covering of the fan side-slipping mechanism can not be realized；
(3) angle voussoir is a wedge-shaped stick in the utility model, easy to process simple, with to process in the prior art
Conventional covering of the fan side-slipping mechanism is compared, and processing covering of the fan side-slipping mechanism is wasted time and energy, and influences the test period；
(4) support arm can realize back support in the utility model, and different length can be installed between support arm and rotor
Extension so as to meet various sizes of model and adjustment be in test chamber correct position the needs of.
Brief description of the drawings
Fig. 1 is the side view of the utility model mechanism.
Fig. 2 is the top view that the utility model mechanism realizes 0 ° of yaw angle.
Fig. 3 is the top view that the utility model mechanism realizes 10 ° of yaw angles.
Fig. 4 (a) is the side view of rotor in the utility model mechanism.
Fig. 4 (b) is the top view of rotor in the utility model mechanism.
Fig. 5 (a) is the side view of rotating shaft in the utility model mechanism.
Fig. 5 (b) is the rearview of rotating shaft in the utility model mechanism.
Fig. 6 (a) is the side view of pull bar in the utility model mechanism.
Fig. 6 (b) is the rearview of pull bar in the utility model mechanism.
Embodiment
The utility model is described in further details below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, a kind of wind-tunnel back support mechanism of achievable yaw angle consecutive variations includes：Support arm 1, extend
Section 2, pressing plate 3, angle voussoir 4, rotating shaft 5, rotor 6 and pull bar 7.As shown in Fig. 4 (a), Fig. 4 (b), rotor 6 includes cylinder
And linking arm, it is structure as a whole, cylinder end face is provided with groove 61, is provided with through hole 63 in the middle part of cylinder, linking arm is located at column side face
And it is vertical with the axis of through hole 63, there is adpting flange 62 linking arm end；As shown in Fig. 5 (a), Fig. 5 (b), rotating shaft 5 is integrated knot
Structure, including axle body 52, sleeve 54, axle body 52 are located at the side wall of sleeve 54, and the axis of axle body 52 is vertical with the axis of sleeve 54；Such as figure
Shown in 6 (a), Fig. 6 (b), pull bar 7 includes head circular cone and cylindrical bar, is structure as a whole, and cylindrical bar is located in the circular cone bottom surface of head
Portion, keyway 71 is carried on cylindrical bar, head circular cone edge is provided with recess 72 vertically；The one end of support arm 1 passes through pin and outside mould
Type is connected, and the other end is connected with the one end of extension 2, and the other end of extension 2 is connected with rotor 6, and rotor 6 is enclosed in rotating shaft 5,
The groove 61 of the end of rotor 6, breach 51 and the angle voussoir 4 of the end of axle body 52 coordinate, and wedge enters difference between two planes
The angle voussoir 4 of angle makes 5 one-tenth different yaw angles of rotor 6 and rotating shaft, then compresses angle voussoir 4, pressing plate 3 with pressing plate 3
On there are two screw holes to be separately fixed on rotor 6 and rotating shaft 5, the bottom of rotating shaft 5 is divided into sleeve 54, be enclosed on support 9 protrusion
On connecting pole, then load onto pull bar 7 and rotating shaft 5 is fixed on support 9, for the rotation that limiting mechanism is overall, pull bar 7 and support
9 have keyway 71, are coordinated by key 8, have recess 72 to coordinate with the bulge-structure 53 on rotor 6 on the conehead of pull bar 7, pass through
Key 8 and fixed plush copper 9 limit rolling of the mechanism around axial direction.The connecting pole of support 9 inserts from one end of sleeve 54, and end is stuck in set
At back-up ring in 54 other end ports of cylinder, the cylindrical bar of pull bar 7 inserts from the other end of sleeve 54, by keyway 71
Key 8 coordinate with support 9, the bulge-structure 53 that the end of sleeve 54 is stretched out along wall is inserted in recess 72 so that sleeve 54, support
Do not rotated between 9 connecting poles.
The center of rotor 6 is the cavity face of cylinder, is sleeved in rotating shaft 5, and rotor 6 being capable of 5 continuous rotation around the shaft；Rotate
Body 6 and the upper end of rotating shaft 5 respectively machined a groove 61 and the breach 51 of L-type, being capable of wedge between groove 61 and the breach 51 of L-type
Enter the angle voussoir 4 of different angle, make to form difference between the axis of the axis of the linking arm of rotor 6 and the sleeve 54 of rotating shaft 5
Angle beta, so as to realize different yaw angles；When yaw angle is zero degree, the He of groove 61 of rotor 6 and the upper end of rotating shaft 5
The facade of breach 51 forms an angle as α0, this example α0=0.5 °, α0It is unsuitable excessive, 0.2 °≤α0≤ 1 °, to facilitate 0 ° of sideslip
Voussoir is wedged preferably during angle.
Angle voussoir 4 is wedge structure, and the angle between 4 two sides of angle voussoir corresponds to certain yaw angle, works as side
Angle when sliding angle is 0 ° between required 4 two sides of angle voussoir is α0, this example α0=0.5 °, then needed for the angle of β >=0 °
Angle α=α between 4 two sides of angle voussoir0+β；0°≤β≤30°.
The angle voussoir 4 of different angle also corresponds to the different yaw angle of external model.In terms of depression angle, when rotor 6
Positive yaw angle is realized when 5 rotate counterclockwise around the shaft, if the yaw angle β realized from side wedging angle voussoir 51>=0 °, β1=β,
This example to realize 0 ° of yaw angle, 4 °, 8 °, 10 °, therefore machined 4 angle voussoirs 4, the angle α difference of both sides
For 0.5 °, 4.5 °, 8.5 °, 10.5 °, Fig. 3 is the schematic diagram that 10.5 ° of angle voussoirs 4 realize 10 ° of yaw angle.
When direction difference is wedged in the tip of angle voussoir 4, the angle voussoir 4 of different angle also corresponds to external model difference
Yaw angle.When rotor 6 realizes positive yaw angle when 5 rotate counterclockwise around the shaft, if realized from side wedging angle voussoir 4
Yaw angle is β1>=0 °, then the yaw angle realized from other side wedging angle voussoir 4 is β2=-(β1+2α0)=- (α+α0), this
If four angle voussoirs are wedged from other side in example, the yaw angle realized is followed successively by -1 °, -5 °, -9 °, -11 °；This reality
The length of the extension 2 connected between example support arm 1 and rotor 6 is 400mm, so that certain air intake test model is in wind-tunnel
Test section observes window position；Fixed plush copper is designed with rotating shaft 5, with the mating recesses on pull bar 7, pull bar 7 passes through key with support 9
8 coordinate, so as to limit rolling of the mechanism around axial direction.
A specific embodiment of the present utility model is the foregoing is only, is not limited to model of the present utility model
Enclose.Any those skilled in the art, the equivalent variations made on the premise of design of the present utility model and principle is not departed from,
Modification belongs to the scope of the utility model protection with combining.
What the utility model was not described in detail partly belongs to general knowledge as well known to those skilled in the art.
Claims (4)
- A kind of 1. wind-tunnel back support mechanism of achievable yaw angle consecutive variations, it is characterised in that including：Support arm (1), pressing plate (3), angle voussoir (4), rotating shaft (5), rotor (6)；Rotor (6) includes cylinder and linking arm, is structure as a whole, cylinder end Face is provided with groove (61), and through hole (63) is provided with the middle part of cylinder, and linking arm is located at column side face and, company vertical with through hole (63) axis Connecing arm end has adpting flange (62)；Rotating shaft (5) is structure as a whole, including axle body (52), sleeve (54), and axle body (52) is positioned at set Cylinder (54) side wall, the axis of axle body (52) are vertical with the axis of sleeve (54)；Support arm (1) one end is connected with adpting flange (62)； Rotor (6) is enclosed on axle body (52) by through hole (63), on breach (51) bottom surface of axle body (52) end and rotor (6) Groove (61) bottom surface is concordant；The angle voussoir (4) of different angle be arranged on groove (61) in, both sides respectively with groove (61) side Wall, breach (51) side wall are adjacent to, and make to form different angles between the axis of rotor (6) linking arm and the axis of sleeve (54) β；Pressing plate (3) compresses angle voussoir (4), and both ends are separately fixed on rotor (6) and rotating shaft (5)；Sleeve (54) is enclosed on support (9) on prominent connecting pole, it is fixedly connected between sleeve (54) and support (9).
- A kind of 2. wind-tunnel back support mechanism of achievable yaw angle consecutive variations according to claim 1, it is characterised in that Also include pull bar (7), key (8)；Pull bar (7) includes head circular cone and cylindrical bar, is structure as a whole, and cylindrical bar is located at head circular cone In the middle part of bottom surface, keyway (71) is carried on cylindrical bar, head circular cone edge is provided with recess (72) vertically；Support (9) connecting pole from One end insertion of sleeve (54), end is stuck at the back-up ring in sleeve (54) other end port, and the cylindrical bar of pull bar (7) is from sleeve (54) other end insertion, is coordinated by the key (8) in keyway (71) and support (9), and sleeve (54) end is along wall In bulge-structure (53) the insertion recess (72) of stretching so that do not rotated between sleeve (54), support (9) connecting pole.
- 3. a kind of wind-tunnel back support mechanism of achievable yaw angle consecutive variations according to claim 1 or 2, its feature exist In：The angle voussoir (4) is wedge structure, angle α=α between two sides of each angle voussoir (4)0+ β, wherein, α0 For β=0 ° when angle voussoir (4) two sides between angle, 0.2 °≤α0≤ 1 °, 0 °≤β≤30 °.
- A kind of 4. wind-tunnel back support mechanism of achievable yaw angle consecutive variations according to claim 3, it is characterised in that： The extension (2) of different length is connected between the support arm (1) and rotor (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182493.4U CN206772549U (en) | 2017-02-28 | 2017-02-28 | A kind of wind-tunnel back support mechanism of achievable yaw angle consecutive variations |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182493.4U CN206772549U (en) | 2017-02-28 | 2017-02-28 | A kind of wind-tunnel back support mechanism of achievable yaw angle consecutive variations |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706257A (en) * | 2017-02-24 | 2017-05-24 | 中国航天空气动力技术研究院 | Wind tunnel back support mechanism capable of achieving continuous change of sideslip angle |
| CN109556865A (en) * | 2018-10-24 | 2019-04-02 | 中航工程集成设备有限公司 | A kind of wing body built-up pattern support for air intake test |
| CN110514385A (en) * | 2019-08-05 | 2019-11-29 | 中国航空工业集团公司哈尔滨空气动力研究所 | A kind of undercarriage aerodynamic noise test support device |
| CN110940483A (en) * | 2019-11-13 | 2020-03-31 | 中国航天空气动力技术研究院 | Pitching yawing free vibration dynamic derivative test device for large slenderness ratio aircraft |
| CN115541175A (en) * | 2022-12-02 | 2022-12-30 | 中国空气动力研究与发展中心超高速空气动力研究所 | Design method of variable attack angle module of small-caliber closed wind tunnel test section |
-
2017
- 2017-02-28 CN CN201720182493.4U patent/CN206772549U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706257A (en) * | 2017-02-24 | 2017-05-24 | 中国航天空气动力技术研究院 | Wind tunnel back support mechanism capable of achieving continuous change of sideslip angle |
| CN106706257B (en) * | 2017-02-24 | 2019-09-06 | 中国航天空气动力技术研究院 | A kind of wind-tunnel back support mechanism of achievable yaw angle consecutive variations |
| CN109556865A (en) * | 2018-10-24 | 2019-04-02 | 中航工程集成设备有限公司 | A kind of wing body built-up pattern support for air intake test |
| CN110514385A (en) * | 2019-08-05 | 2019-11-29 | 中国航空工业集团公司哈尔滨空气动力研究所 | A kind of undercarriage aerodynamic noise test support device |
| CN110514385B (en) * | 2019-08-05 | 2021-01-08 | 中国航空工业集团公司哈尔滨空气动力研究所 | Landing gear pneumatic noise test supporting device |
| CN110940483A (en) * | 2019-11-13 | 2020-03-31 | 中国航天空气动力技术研究院 | Pitching yawing free vibration dynamic derivative test device for large slenderness ratio aircraft |
| CN110940483B (en) * | 2019-11-13 | 2021-12-07 | 中国航天空气动力技术研究院 | Pitching yawing free vibration dynamic derivative test device for large slenderness ratio aircraft |
| CN115541175A (en) * | 2022-12-02 | 2022-12-30 | 中国空气动力研究与发展中心超高速空气动力研究所 | Design method of variable attack angle module of small-caliber closed wind tunnel test section |
| CN115541175B (en) * | 2022-12-02 | 2023-02-03 | 中国空气动力研究与发展中心超高速空气动力研究所 | Design method of small-caliber closed wind tunnel test section variable attack angle module |
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