CN215155593U - Symmetrical wing surface folding and unfolding mechanism of morphing aircraft - Google Patents
Symmetrical wing surface folding and unfolding mechanism of morphing aircraft Download PDFInfo
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- CN215155593U CN215155593U CN202121353526.XU CN202121353526U CN215155593U CN 215155593 U CN215155593 U CN 215155593U CN 202121353526 U CN202121353526 U CN 202121353526U CN 215155593 U CN215155593 U CN 215155593U
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Abstract
The utility model discloses a symmetrical wing surface folding and unfolding mechanism of a morphing aircraft, which comprises a fixed wing, a link mechanism, a wing tip, a worm wheel, a rotating shaft, a worm, a transmission shaft, a driven gear, a driving gear and a motor; the power of the motor is transmitted to the link mechanism through the gear pair and the worm-gear pair, so that the wing tips are folded and unfolded relative to the fixed wings, and the gear pair plays a role in transmission and deceleration, so that the movement process of the wing tips is more stable; the worm and gear mechanism has the characteristic of reverse self-locking, and can ensure that the wings of the aircraft keep a relatively safe and stable unfolding state. When the aircraft flies, the utility model is completely unfolded, so that the aircraft obtains a larger lift-drag ratio; after the aircraft landed to ground, the utility model discloses fold completely, reduced the transverse dimension of aircraft, alleviate the aircraft to the reliance in some specific place.
Description
Technical Field
The utility model belongs to the technical field of the aircraft, concretely relates to mechanism is rolled over to variant aircraft symmetry formula airfoil.
Background
The foldable mechanism completes specific flight tasks by changing the shape of the wings under different working environments of the aircraft: the wings are completely unfolded to obtain a large lift-drag ratio and a long dead time, so that the aircraft is favorable for cruising; after the aircraft lands on the ground, the wings are folded to reduce the transverse size of the aircraft, so that the aircraft is prevented from being limited by ground conditions. Foldable variant aircrafts studied at home and abroad are all with wings folded upwards. The traditional aircraft design usually adopts a method for changing the wing appearance, such as a method for adopting a leading edge slat, a trailing edge flap, a variable sweep angle, a variable wing profile camber, a variable span length and the like, so as to adapt to different real-time states of take-off and landing, cruising, high-speed flight and the like, and obtain more ideal performance. However, this method is complicated in mechanism, limited in function, low in efficiency, and difficult to adapt to changes in flying conditions in a wide range.
Disclosure of Invention
The utility model aims at providing a mechanism is rolled over to variant aircraft symmetry formula airfoil just lies in to prior art not enough, enables the aircraft under specific operational environment, realizes the folding or the expansion of wing, prolongs the dead time of aircraft, avoids the aircraft to fall the restriction that receives ground condition again simultaneously, promotes the suitability of aircraft to the place.
In order to solve the above problem, the utility model discloses a technical scheme as follows:
the utility model comprises a fixed wing, a rear wing beam, a connecting rod mechanism, a wing tip, a front wing beam, a worm wheel, a rotating shaft, a worm, a transmission shaft, a driven gear, a driving gear and a motor; the base of the motor is fixed on the fixed wing, and the output shaft of the motor is connected with the transmission shaft through a coupler; the transmission shaft and a supporting hole formed on the transmission shaft supporting frame form a revolute pair, and the transmission shaft supporting frame is fixed on the fixed wing; the driving gear is fixed on the transmission shaft; the worm support frame is fixed on the fixed wing; the worm is supported in a supporting hole formed in the worm supporting frame through a radial bearing; the driven gear is fixed on the worm and is meshed with the driving gear; the two rear wing beams are fixed on the fixed wing at intervals, and two ends of the rotating shaft are supported in supporting holes formed in the two rear wing beams through radial bearings; the worm wheel is fixed on the rotating shaft and is meshed with the worm; two ends of the rotating shaft are respectively connected with the two front wing beams through a connecting rod mechanism; the distance between the two front wing beams is fixed on the wing tip; the connecting rod mechanism comprises a crank, a connecting rod, a rotating shaft and a V-shaped oscillating rod; one end of the crank is fixed with the end part of the rotating shaft, and one end of the connecting rod is hinged with the other end of the crank; the joint of the two arms of the V-shaped swing rod is hinged with the other end of the connecting rod; one arm free end of the V-shaped swing rod is hinged with a front end opening of the rear wing beam on the corresponding side and a rear end opening of the front wing beam through a rotating shaft; the free end of the other arm of the V-shaped swing rod is hinged with the middle opening of the front wing beam on the corresponding side.
Preferably, the motor is a servo motor or a variable frequency motor and is controlled by a controller.
Preferably, the included angle between the two arms of the V-shaped swing rod is 135 degrees.
Preferably, the transmission shaft support frame and the two rear wing beams are fixedly connected through reinforcing rods.
The utility model discloses beneficial effect who has:
1. the utility model transmits the power of the motor to the link mechanism through the gear pair and the worm-and-gear pair, so as to realize the folding and unfolding of the wing tip relative to the fixed wing; a gear pair consisting of a pair of large and small gears plays a role in transmission and speed reduction, and the stability of the movement process of the wingtip is kept; the worm gear mechanism has the characteristic of reverse self-locking, can keep the wings of the aircraft in a stable unfolded state, and is favorable for prolonging the dead time of the aircraft.
2. When the aircraft flies, the utility model is completely unfolded, so that the aircraft obtains a larger lift-drag ratio; after the aircraft lands on the ground, the utility model is completely folded, the transverse size of the aircraft is reduced, the aircraft is not limited by the ground conditions, and the dependence of the aircraft on certain specific fields is reduced; therefore, the utility model discloses can enough prolong the dead time of aircraft, can promote the suitability of aircraft to the place again.
Drawings
Fig. 1 is a development state diagram of the present invention;
fig. 2 is a folded state view of the present invention;
FIG. 3 is a partial enlarged view of the assembly relationship among the motor, the shaft coupling, the transmission shaft and the driving gear of the present invention;
fig. 4 is a partial enlarged view of the assembly relationship of the middle transmission shaft, the driving gear, the driven gear and the worm according to the present invention.
In the figure: 1. the wing comprises a fixed wing, 2, a transmission shaft support frame, 3, a rear wing beam, 4, a radial bearing, 5, a crank, 6, a connecting rod, 7, a rotating shaft, 8, a pin, 9, a wing tip, 10, a V-shaped swing rod, 11, a front wing beam, 12, a worm wheel, 13, a rotating shaft, 14, a worm, 15, a worm support frame, 16, a transmission shaft, 17, a driven gear, 18, a driving gear, 19, a coupler, 20 and a motor.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
As shown in fig. 1 and 3, a symmetrical wing surface folding and unfolding mechanism of a variant aircraft comprises a fixed wing 1, a rear wing beam 3, a link mechanism, a wing tip 9, a front wing beam 11, a worm wheel 12, a rotating shaft 13, a worm 14, a transmission shaft 16, a driven gear 17, a driving gear 18 and a motor 20; the base of the motor 20 is fixed on the fixed wing 1, and the output shaft of the motor 20 is connected with the transmission shaft 16 through a coupling 19; the transmission shaft 16 and a bearing hole formed on the transmission shaft support frame 2 form a revolute pair, and the transmission shaft support frame 2 is fixed on the fixed wing 1; the driving gear 18 is fixed on the transmission shaft 16; the worm support frame 15 is fixed on the fixed wing 1; the worm 14 is supported in a supporting hole formed in a worm supporting frame 15 through a radial bearing 4; the driven gear 17 is fixed on the worm 14 and meshed with the driving gear 18; the two rear wing beams 3 are fixed on the fixed wing 1 at intervals, and two ends of the rotating shaft 13 are supported in supporting holes formed in the two rear wing beams 3 through radial bearings 4; the worm wheel 12 is fixed on the rotating shaft 13 and meshed with the worm 14; two ends of the rotating shaft 13 are respectively connected with the two front wing beams 11 through a connecting rod mechanism; two front wing beams 11 are fixed on the wing tip 9 at intervals; the connecting rod mechanism comprises a crank 5, a connecting rod 6, a rotating shaft 7, a pin 8 and a V-shaped oscillating rod 10; one end of the crank 5 is fixed with the end part of the rotating shaft 13, and one end of the connecting rod 6 is hinged with the other end of the crank 5; the joint of the two arms of the V-shaped swing rod 10 is hinged with the other end of the connecting rod 6 through a pin 8; one arm free end of the V-shaped swing rod 10 is hinged with a front end opening of the rear wing beam 3 on the corresponding side and a rear end opening of the front wing beam 11 through a rotating shaft 7; the free end of the other arm of the V-shaped swing rod 10 is hinged with the middle opening of the front wing beam 11 on the corresponding side.
As a preferred embodiment, the motor 20 is a servo motor or a variable frequency motor, and is controlled by a controller.
As a preferred embodiment, the angle between the two arms of the V-shaped swing link 10 is 135 °.
As a preferred embodiment, as shown in fig. 4, the transmission shaft support frame 2 and the two rear spars 3 are fixedly connected through reinforcing rods.
The symmetrical wing surface folding and unfolding mechanism of the morphing aircraft has the following working principle:
the symmetrical wing surface folding and unfolding mechanism of the morphing aircraft is symmetrically used, and the fixed wings 1 of the symmetrical wing surface folding and unfolding mechanism of the two morphing aircrafts are fixed on the two sides of the aircraft. The motor 20 drives the transmission shaft 16 and the driving gear 18 to rotate through the coupler 19, the driving gear 18 is meshed with the driven gear 17 to drive the driven gear 17 and the worm 14 to rotate, and the worm 14 drives the worm wheel 12 and the rotating shaft 13 to rotate; the rotating shaft 13 drives the crank 5 to rotate, and the crank 5 drives the V-shaped swing link 10, the front wing beam 11 and the wing tip 9 to rotate around the rotating shaft 7 through the connecting rod 6, so as to fold (as shown in fig. 2) and unfold (as shown in fig. 1) the wing tip 9 relative to the fixed wing 1. When the aircraft was flying in the air, the utility model discloses a wing tip 9 relatively fixed wing 1 expandes, can receive great lift effect, consequently utilizes worm wheel and worm drive's good auto-lock characteristics to realize locking when wing tip 9 expandes, can make the wing of aircraft keep a comparatively safe and stable's expansion state. The utility model has the advantages of simple structure, convenient installation, etc.
Claims (4)
1. The utility model provides a mechanism is rolled over to symmetrical formula airfoil of variant aircraft, includes stationary vane and wingtip, its characterized in that: the device also comprises a rear wing beam, a connecting rod mechanism, a front wing beam, a worm wheel, a rotating shaft, a worm, a transmission shaft, a driven gear, a driving gear and a motor; the base of the motor is fixed on the fixed wing, and the output shaft of the motor is connected with the transmission shaft through a coupler; the transmission shaft and a supporting hole formed on the transmission shaft supporting frame form a revolute pair, and the transmission shaft supporting frame is fixed on the fixed wing; the driving gear is fixed on the transmission shaft; the worm support frame is fixed on the fixed wing; the worm is supported in a supporting hole formed in the worm supporting frame through a radial bearing; the driven gear is fixed on the worm and is meshed with the driving gear; the two rear wing beams are fixed on the fixed wing at intervals, and two ends of the rotating shaft are supported in supporting holes formed in the two rear wing beams through radial bearings; the worm wheel is fixed on the rotating shaft and is meshed with the worm; two ends of the rotating shaft are respectively connected with the two front wing beams through a connecting rod mechanism; the distance between the two front wing beams is fixed on the wing tip; the connecting rod mechanism comprises a crank, a connecting rod, a rotating shaft and a V-shaped oscillating rod; one end of the crank is fixed with the end part of the rotating shaft, and one end of the connecting rod is hinged with the other end of the crank; the joint of the two arms of the V-shaped swing rod is hinged with the other end of the connecting rod; one arm free end of the V-shaped swing rod is hinged with a front end opening of the rear wing beam on the corresponding side and a rear end opening of the front wing beam through a rotating shaft; the free end of the other arm of the V-shaped swing rod is hinged with the middle opening of the front wing beam on the corresponding side.
2. The symmetrical airfoil folding and unfolding mechanism of the morphing aircraft as claimed in claim 1, wherein: the motor is a servo motor or a variable frequency motor and is controlled by a controller.
3. The symmetrical airfoil folding and unfolding mechanism of the morphing aircraft as claimed in claim 1, wherein: the included angle of the two arms of the V-shaped swing rod is 135 degrees.
4. The symmetrical airfoil folding and unfolding mechanism of the morphing aircraft as claimed in claim 1, wherein: the transmission shaft support frame is fixedly connected with the two rear wing beams through reinforcing rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121353526.XU CN215155593U (en) | 2021-06-17 | 2021-06-17 | Symmetrical wing surface folding and unfolding mechanism of morphing aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121353526.XU CN215155593U (en) | 2021-06-17 | 2021-06-17 | Symmetrical wing surface folding and unfolding mechanism of morphing aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215155593U true CN215155593U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121353526.XU Active CN215155593U (en) | 2021-06-17 | 2021-06-17 | Symmetrical wing surface folding and unfolding mechanism of morphing aircraft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114313217A (en) * | 2022-01-13 | 2022-04-12 | 南京航空航天大学 | Wing capable of folding and unfolding along unfolding direction variant |
-
2021
- 2021-06-17 CN CN202121353526.XU patent/CN215155593U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114313217A (en) * | 2022-01-13 | 2022-04-12 | 南京航空航天大学 | Wing capable of folding and unfolding along unfolding direction variant |
| CN114313217B (en) * | 2022-01-13 | 2023-09-29 | 南京航空航天大学 | Wing capable of being folded and unfolded along unfolding direction variation |
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