CN114802709A - Wing surface unfolding mechanism and folding wing flying device - Google Patents
Wing surface unfolding mechanism and folding wing flying device Download PDFInfo
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- CN114802709A CN114802709A CN202210744790.9A CN202210744790A CN114802709A CN 114802709 A CN114802709 A CN 114802709A CN 202210744790 A CN202210744790 A CN 202210744790A CN 114802709 A CN114802709 A CN 114802709A
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- wing
- angle
- boss
- airfoil
- unfolding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/38—Adjustment of complete wings or parts thereof
- B64C3/56—Folding or collapsing to reduce overall dimensions of aircraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/25—Fixed-wing aircraft
Abstract
The invention discloses a wing surface unfolding mechanism and a folding wing flying device, which comprise a wing rotating shaft, wherein a first wing and a second wing are sequentially sleeved on the wing rotating shaft, an unfolding mechanism mounting seat is arranged on one side of the wing rotating shaft, and the first wing and the second wing are respectively connected with the unfolding mechanism mounting seat through elastic sheets; the expansion mechanism mounting base is also provided with a boss, the elastic sheet can effectively prevent the second wing and the first wing from reversing after being expanded, and the boss can prevent the second wing and the first wing from being excessively expanded, namely prevent the second wing and the first wing from continuously rotating after being expanded to the position; the wing surface unfolding mechanism is mounted on the aircraft body by the unfolding mechanism mounting seat.
Description
Technical Field
The invention belongs to the technical field of unmanned aerial vehicle folding wing unfolding mechanisms, and relates to a wing surface unfolding mechanism.
The invention also relates to a flight device with the folding wings.
Background
In the prior art, a folding wing unfolding mechanism is mostly driven by a spring, a motor, a steering engine and the like to unfold and is synchronous by means of gears and the like. The defects of long unfolding time, asynchronous unfolding process, incomplete unfolding, unreliable locking after unfolding, easy failure in long-term storage, complex structure and the like are not widely applied in practical application.
When the folding wing unfolding mechanism adopts the gas actuating cylinder as the driving source, the unfolding time can reach below 0.5s, and the folding wing unfolding mechanism is unfolded quickly; during storage and transportation, the wings are fixed and limited by the gas actuating cylinders, the connecting rods and the rocker arms to be in a folded state; the ejection cylinder is instantly started by the gas actuating cylinder, the connecting rod is driven to pull the rocker arm, and the rocker arm pulls the wing rotating shaft to rotate around the rotating axis of the wing rotating shaft, so that the first left wing is driven to rotate and then rapidly unfolded.
The wings need to be limited and locked after being unfolded, so a mechanism capable of ensuring that the wings are firmly locked after being unfolded in place needs to be designed.
Disclosure of Invention
The invention aims to provide a wing surface unfolding mechanism, which solves the problems that the existing wing unfolding mechanism is long in unfolding time and unreliable in locking after unfolding.
Another object of the present invention is to provide a folding wing flying device.
The invention adopts the technical scheme that the wing surface unfolding mechanism comprises a wing rotating shaft, a first wing and a second wing, wherein the first wing and the second wing are sequentially sleeved on the wing rotating shaft through rotating parts respectively;
the folding wing unfolding mechanism comprises a wing rotating shaft, a folding wing, a wing unfolding mechanism mounting seat, two elastic pieces, a first contact surface and a second contact surface, wherein the folding wing is arranged on the wing rotating shaft, the folding wing is provided with the unfolding mechanism mounting seat, the unfolding mechanism mounting seat is fixedly connected with a machine body, the two elastic pieces are mounted on the unfolding mechanism mounting seat, the first ends of the two elastic pieces are respectively abutted against the toothed bosses of a first wing rotating part and a second wing rotating part, the elastic pieces rotate from the first contact surface of the toothed bosses to be abutted against the second contact surface in the wing unfolding process, and the first contact surface and the second contact surface form a first boss.
The invention is also characterized in that:
the central angle corresponding to the first contact surface is greater than or equal to the angle to be unfolded of the wing;
the middle part of the elastic sheet is fixed on the unfolding mechanism mounting seat through a wing stop block, a second boss is arranged on the wing stop block, the second boss is abutted against the wing when the wing unfolding angle reaches a first preset angle, and the first preset angle is not smaller than the to-be-unfolded angle of the wing; the first preset angle is an angle unfolded when the wing rotates to the second boss;
the elastic sheet is a strip-shaped curved surface elastic sheet, the second end of the elastic sheet is in contact with the wing when the wing is unfolded to reach a second preset angle, and the second preset angle is not smaller than the angle to be unfolded of the wing and not larger than the first preset angle; the second preset angle is a rotating angle when the wing is unfolded to abut against the second end of the elastic sheet;
the rotary part of the second wing is provided with a third boss at one side facing the first wing, one end of the buffer block is fixed, and the other end of the buffer block is abutted against the third boss in the wing unfolding process;
one side of the first wing rotating part facing the second wing is provided with an arc-shaped groove with one end sealed, and the buffer block is arranged in the arc-shaped groove;
in the wing surface unfolding process, the buffer block is in contact with the third boss before the wing is unfolded in place;
wherein the buffer block is arc foamed aluminum.
According to a second technical scheme, the folding wing flying device comprises a machine body and the wing surface unfolding mechanism, wherein the wing surface unfolding mechanism is fixed on the machine body through the unfolding mechanism mounting seat.
The invention has the beneficial effects that:
the wing surface unfolding mechanism realizes locking after unfolding in place through the design of the elastic sheet and the wing rotating part, has the advantages of ingenious structural design, few parts, light weight, simple processing technology of the elastic sheet, high material utilization rate and capability of greatly saving the production period and cost.
Drawings
FIG. 1 is a schematic illustration of an airfoil deployment mechanism of the present invention after airfoil deployment;
FIG. 2 is a schematic structural view of an airfoil deployment mechanism of the present invention;
FIG. 3 is a schematic view of a damping device in an airfoil deployment mechanism according to the present invention;
FIG. 4 is a schematic structural view of an airfoil deployment mechanism of the present invention with the airfoil in a folded condition;
FIG. 5 is a schematic view of the configuration of the arcuate slot and snubber block of an airfoil deployment mechanism in accordance with the present invention.
In the drawing, 1 is a mounting base of a spreading mechanism, 2 is a first wing, 3 is a second wing, 4 is an elastic sheet, 5 is a wing stop, 6 is a wing rotating shaft, 7 is a buffer block, 8 is a third boss, 9 is a first contact surface, 10 is a second contact surface, and 11 is an arc-shaped groove.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention provides an airfoil surface unfolding mechanism:
as shown in fig. 1, the airfoil surface unfolding mechanism comprises an unfolding mechanism mounting seat 1 fixedly connected with a machine body and two elastic sheets 4, wherein the two elastic sheets 4 are strip-shaped arc-shaped elastic sheets, and curved surfaces of the two elastic sheets 4 are intersected; the two elastic pieces 4 are fixedly connected with the unfolding mechanism mounting seat 1, one end of each elastic piece 4 is an elastic limiting end, as shown in fig. 4, the second wing 3 and the first wing 2 are provided with a tooth-shaped boss on the rotating portion, the tooth-shaped bosses are arranged along the rotating direction of the wings, wherein the elastic limit end of one elastic sheet is propped against the toothed boss in the rotating direction of the first wing 2, the elastic limit end of the other elastic sheet is propped against the toothed boss in the rotating direction of the second wing 3, namely, the first end of the elastic sheet 4 rotates from the first contact surface 9 of the toothed boss to abut against the second contact surface 10 in the wing unfolding process, the first contact surface 9 and the second contact surface 10 form a first boss, the central angle corresponding to the first contact surface 9 is more than or equal to the angle to be unfolded of the wing, if the unfolding angle of the wing is 90 degrees, the central angle corresponding to the first contact surface 9 is more than or equal to 90 degrees; the second end of flexure strip 4, the one end that the wing was kept away from to flexure strip 4 promptly contacts the wing earlier than the second boss in the wing expansion in-process, can further play the effect of buffering, and the buffering contacts the second boss earlier and carries on spacingly, and the second end of flexure strip 4 and one side of wing contact are the arc design, can prevent to cause the fish tail to the wing.
As shown in fig. 2, when the second wing 3 and the first wing 2 are in the unfolded state, both the two elastic pieces 4 are compressed, and the wing stopper 5 is provided with a second boss for abutting against the wing when the wing unfolded angle reaches a first preset angle; the elastic sheet 4 effectively prevents the second wing 3 and the first wing 2 from reversing after being unfolded, and the wing stopper 5 prevents the second wing 3 and the first wing 2 from being excessively unfolded, namely prevents the second wing 3 and the first wing 2 from continuing to rotate after being unfolded in place;
as shown in fig. 3 and 5, the buffer mechanism in the wing surface unfolding mechanism is mainly realized by a buffer block 7, the buffer block 7 is made of an elastic material, the elastic material includes but is not limited to foamed aluminum, the buffer block 7 is installed in an arc-shaped groove 11 at the upper part of the wing root of the first wing 2, the arc-shaped groove 11 is an arc-shaped groove with one end sealed, the opening is used for propping against a third boss 8 for buffering in the unfolding process of the wing, the sealed end of the arc-shaped groove 11 can play a role of fixing one end of the buffer block 7, the third boss 8 is arranged at the lower part of a lining of the second wing 3, the buffer block 7 rotates anticlockwise along with the first wing 2 when the wing is unfolded, the second wing 3 and the lining of the second wing rotate clockwise, the buffer block 7 contacts with the third boss 8 under the lining before the wing is unfolded, the third boss 8 under the lining begins to press the buffer block 7, the buffer block 7 deforms to absorb impact energy when the wing is unfolded, reach the cushioning effect, because the wing deployment time is extremely short, expand to target in place and need cushion the wing in order to reduce the impact damage to wing root department in the twinkling of an eye, so the third boss 8 and the buffer block 7 that this application set up cooperate, can play the cushioning effect.
The wing surface unfolding mechanism mainly adopts a single arc-shaped foamed aluminum block as a buffer block 7 to buffer the impact of the wing when the wing is unfolded; and a front limiting device and a rear limiting device are added to ensure that the front direction and the rear direction of the wing are effectively limited.
The invention also provides a folding wing flying device, which comprises a machine body and the wing surface unfolding mechanism, wherein the wing surface unfolding mechanism is fixed on the machine body through the unfolding mechanism mounting seat 1, so that the folding wing flying device with the buffering and locking mechanism can be formed.
Claims (8)
1. The wing surface unfolding mechanism is characterized by comprising a wing rotating shaft (6), a first wing (2) and a second wing (3), wherein the first wing (2) and the second wing (3) are sequentially sleeved on the wing rotating shaft (6) through rotating parts respectively, a toothed boss is arranged on the outer side of each rotating part in the rotating direction of the rotating part, and the toothed boss comprises a first contact surface (9) and a second contact surface (10) which form the first boss;
an unfolding mechanism mounting seat (1) is arranged on the opposite side of the folding wing of the wing rotating shaft (6), the unfolding mechanism mounting seat (1) is fixedly connected with a fuselage, two elastic pieces (4) are mounted on the unfolding mechanism mounting seat (1) and are respectively contacted with a first wing (2) and a second wing (3), and when the included angle between the first wing (2) and the second wing (3) is 0 degree, first ends of the two elastic pieces (4) are respectively contacted with a first contact surface (9); when the wing is unfolded to the angle to be unfolded, the first end of the elastic sheet (4) is abutted against the second contact surface (10).
2. An airfoil spreading mechanism according to claim 1, wherein the first contact surface (9) corresponds to a central angle which is greater than or equal to a to-be-spread angle of the wing.
3. The airfoil surface unfolding mechanism according to claim 1, characterized in that the middle part of the elastic sheet (4) is fixed on the unfolding mechanism mounting seat (1), a wing stopper (5) is installed in the middle part of the elastic sheet (4), a second boss is arranged on the wing stopper (5), the second boss abuts against the wing when the wing unfolding angle reaches a first preset angle, and the first preset angle is not smaller than the angle to be unfolded of the wing.
4. A wing surface spreading mechanism according to claim 3, wherein the elastic sheet (4) is an elongated curved elastic sheet, and the second end of the elastic sheet (4) contacts with the wing when the wing is spread to a second preset angle, and the second preset angle is not smaller than the to-be-spread angle of the wing and not larger than the first preset angle.
5. The wing surface unfolding mechanism according to claim 1, characterized in that a buffer block (7) is arranged on one side of the rotating part of the first wing (2) facing the second wing (3), a third boss (8) is arranged on one side of the rotating part of the second wing (3) facing the first wing (2), one end of the buffer block (7) is fixed, and when the included angle between the first wing (2) and the second wing (3) is 0 °, the central angle corresponding to the other end of the buffer block (7) and the third boss (8) is smaller than the included angle corresponding to the first wing (2) and the second wing (3) when reaching the angle to be unfolded.
6. An airfoil deployment mechanism according to claim 5, characterised in that the rotary part of the first airfoil (2) is provided with an arcuate slot (11) closed at one end on the side facing the second airfoil (3), the bump stop (7) being provided in the arcuate slot (11).
7. An airfoil spreading mechanism according to claim 5, wherein the bump stop (7) is an arcuate foam aluminum.
8. A folded wing flying device, characterized in that it comprises a fuselage and an airfoil deployment mechanism according to any of claims 1 to 7, said airfoil deployment mechanism being fixed to said fuselage by means of said deployment mechanism mount (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210744790.9A CN114802709B (en) | 2022-06-29 | 2022-06-29 | Wing surface unfolding mechanism and folding wing flying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210744790.9A CN114802709B (en) | 2022-06-29 | 2022-06-29 | Wing surface unfolding mechanism and folding wing flying device |
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| Publication Number | Publication Date |
|---|---|
| CN114802709A true CN114802709A (en) | 2022-07-29 |
| CN114802709B CN114802709B (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210744790.9A Active CN114802709B (en) | 2022-06-29 | 2022-06-29 | Wing surface unfolding mechanism and folding wing flying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116513448A (en) * | 2023-07-04 | 2023-08-01 | 西安羚控电子科技有限公司 | Limiting device of folding wing and folding wing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB490151A (en) * | 1936-05-08 | 1938-08-10 | Bayerische Flugzeugwerke A G H | Improvements relating to folding wings for aeroplanes |
| US7732741B1 (en) * | 2006-08-31 | 2010-06-08 | The United States Of America As Represented By The Secretary Of The Navy | Folding articulating wing mechanism |
| US20170197702A1 (en) * | 2015-11-11 | 2017-07-13 | Area- l Inc. | Foldable propeller blade with locking mechanism |
| CN207060379U (en) * | 2017-06-01 | 2018-03-02 | 湖北凯龙国安防务科技有限公司 | Unmanned plane wing-folding expanding unit |
| CN209479954U (en) * | 2019-01-24 | 2019-10-11 | 西安羚控电子科技有限公司 | A kind of unmanned plane wing rapid unfolding mechanism |
| CN211223838U (en) * | 2019-10-25 | 2020-08-11 | 中国工程物理研究院总体工程研究所 | Folding wing mechanism |
| CN111891335A (en) * | 2020-08-04 | 2020-11-06 | 中国电子科技集团公司第四十一研究所 | Compact folding wing unfolding and locking mechanism |
| CN112389633A (en) * | 2020-12-03 | 2021-02-23 | 南京航空航天大学苏州研究院 | Folding wing unmanned aerial vehicle's folding mechanism |
-
2022
- 2022-06-29 CN CN202210744790.9A patent/CN114802709B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB490151A (en) * | 1936-05-08 | 1938-08-10 | Bayerische Flugzeugwerke A G H | Improvements relating to folding wings for aeroplanes |
| US7732741B1 (en) * | 2006-08-31 | 2010-06-08 | The United States Of America As Represented By The Secretary Of The Navy | Folding articulating wing mechanism |
| US20170197702A1 (en) * | 2015-11-11 | 2017-07-13 | Area- l Inc. | Foldable propeller blade with locking mechanism |
| CN207060379U (en) * | 2017-06-01 | 2018-03-02 | 湖北凯龙国安防务科技有限公司 | Unmanned plane wing-folding expanding unit |
| CN209479954U (en) * | 2019-01-24 | 2019-10-11 | 西安羚控电子科技有限公司 | A kind of unmanned plane wing rapid unfolding mechanism |
| CN211223838U (en) * | 2019-10-25 | 2020-08-11 | 中国工程物理研究院总体工程研究所 | Folding wing mechanism |
| CN111891335A (en) * | 2020-08-04 | 2020-11-06 | 中国电子科技集团公司第四十一研究所 | Compact folding wing unfolding and locking mechanism |
| CN112389633A (en) * | 2020-12-03 | 2021-02-23 | 南京航空航天大学苏州研究院 | Folding wing unmanned aerial vehicle's folding mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116513448A (en) * | 2023-07-04 | 2023-08-01 | 西安羚控电子科技有限公司 | Limiting device of folding wing and folding wing |
| CN116513448B (en) * | 2023-07-04 | 2023-10-13 | 西安羚控电子科技有限公司 | Limiting device of folding wing and folding wing |
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| Publication number | Publication date |
|---|---|
| CN114802709B (en) | 2022-10-21 |
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