CN112357056A - Wing folding mechanism, wing device and unmanned aerial vehicle - Google Patents
Wing folding mechanism, wing device and unmanned aerial vehicle Download PDFInfo
- Publication number
- CN112357056A CN112357056A CN202011302979.XA CN202011302979A CN112357056A CN 112357056 A CN112357056 A CN 112357056A CN 202011302979 A CN202011302979 A CN 202011302979A CN 112357056 A CN112357056 A CN 112357056A
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- gear
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- transmission
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- aerial vehicle
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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
Abstract
The invention discloses a wing folding mechanism, a wing device and an unmanned aerial vehicle, which comprise: the fixed shaft is rotatably provided with a first gear and a second gear, the first gear and the second gear are respectively used for connecting the wings, and the first gear and the second gear are in transmission connection through a transmission gear; the transmission assembly is used for driving the first gear to rotate; when the transmission assembly drives the first gear to rotate, the first gear drives the second gear to rotate in the opposite direction through the transmission gear, and then the wings are driven to fold or unfold. The wing folding device can lead the wings to repeatedly carry out unfolding and folding actions, and the unfolding and folding processes are smooth, more stable and more reliable.
Description
Technical Field
The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a wing folding mechanism, a wing device and an unmanned aerial vehicle.
Background
Some small unmanned aerial vehicles are launched after the main aircraft ascends to the air through the mounting, wings are folded and attached to the aircraft body before launching, and the front wings and the rear wings are unfolded through a folding mechanism after launching to complete a flight task. The front wing and the rear wing are tightly attached to the machine body, so that the occupied space and the air resistance can be reduced as much as possible during mounting, and the number of the mounting sub-machines can be increased as much as possible.
In a conventional folding mechanism, a torsion spring is generally used for unfolding the wing. When the airplane is installed, the wings are folded in advance, the torque springs are compressed to be tightened, and then the wings are locked by the locking mechanism. After the unmanned aerial vehicle is thrown in the air, the locking mechanism is controlled to be opened, the torque spring drives the wings to be unfolded while bouncing off, and the wings are stopped at preset positions through the limiting blocks. Although the mechanism is light in weight, the reliability is poor, phenomena such as clamping stagnation and unstable unfolding process are easy to occur, the mechanism cannot complete the action of re-folding after being unfolded, and the function is relatively single.
Therefore, the wing folding mechanism, the wing device and the unmanned aerial vehicle are expected to be developed, so that the wings can be repeatedly unfolded and folded, and the unfolding and folding processes are smooth, stable and reliable.
Disclosure of Invention
The invention aims to provide a wing folding mechanism, a wing device and an unmanned aerial vehicle, so that wings can be unfolded and folded repeatedly, and the process is stable and reliable.
In order to achieve the above object, the present invention provides a wing folding mechanism including:
the wing aircraft comprises a fixed shaft, a wing, a first wing, a second wing, a first gear, a second gear, a third gear and a fourth gear, wherein the first gear and the second gear are rotatably arranged on the fixed shaft and are respectively used for being connected with one wing, and the first gear and the second gear are in transmission connection through a transmission gear;
the transmission assembly is used for driving the first gear to rotate;
when the transmission assembly drives the first gear to rotate, the first gear drives the second gear to rotate in the opposite direction through the transmission gear, and then the first gear and the second gear drive one wing to fold or unfold respectively.
Optionally, the transmission assembly comprises a worm wheel and a worm, the worm wheel is rotatably arranged on the fixed shaft and fixedly connected with the first gear, and the worm is in meshing transmission with the worm wheel, and one end of the worm is used for connecting a transmission rod.
Optionally, the worm wheel is directly connected with the first gear, or the worm wheel is fixedly connected with the first gear through a connecting sleeve sleeved on the fixed shaft.
Optionally, the first gear and the second gear are both half gears.
Optionally, still include strutting arrangement, strutting arrangement includes supporting part and U type portion, the middle part of the blind end of U type portion connect in the one end of fixed axle, the supporting part is the bar, locates the open end of U type portion, and connect in the other end of fixed axle.
The invention also provides an unmanned aerial vehicle wing device, comprising: the transmission rod, a pair of wing folding mechanisms and two pairs of wings;
two ends of the transmission rod are respectively connected with a transmission component of the wing folding mechanism;
each pair of said wings being mounted on one of said wing folding mechanisms;
the transmission rod is used for being connected with a driving motor so as to drive the first gear and the second gear to rotate through the transmission components of the pair of wing folding mechanisms, and further drive the two pairs of wings to fold or unfold.
Optionally, the transmission assembly comprises a worm wheel and a worm, the worm wheel is rotatably arranged on the fixed shaft and fixedly connected with the first gear, the worm is in meshed transmission with the worm wheel, and one end of the worm is connected to the transmission rod and coaxial with the transmission rod.
Optionally, the fixed axes of the pair of wing folding mechanisms are parallel to each other.
Optionally, when the wing is unfolded, the length direction of the wing is perpendicular to the axis of the transmission rod; when the wing is folded, the length direction of the wing is parallel to the axis of the transmission rod.
The invention also provides an unmanned aerial vehicle which comprises an unmanned aerial vehicle body and the unmanned aerial vehicle wing device, wherein the unmanned aerial vehicle body is provided with a driving motor, and the driving motor is connected with a transmission rod of the unmanned aerial vehicle wing device.
The invention has the beneficial effects that:
1. the wing folding mechanism of this scheme drives the wing through first gear, second gear cooperation transmission gear and folds or expand, can guarantee that the wing on first gear, the second gear can fold or expand in step, and can drive the wing and expand and folding action repeatedly, and the angle is controllable and the process is smooth and easy and more steady reliable.
2. When the unmanned aerial vehicle flies in a cruising way, the wings can be unfolded to 90 degrees, so that the lift-drag ratio is improved, and the oil consumption is reduced; when the unmanned aerial vehicle reaches a task area and needs to dive and accelerate, the wings can be folded back to a certain angle, so that the flying speed is improved; the unmanned aerial vehicle wing of this scheme can expand repeatedly and folding action, and it is controllable and the process is smooth and easy and more steady reliable with folding angle to expand.
3. When the unmanned aerial vehicle is mounted on the mother aircraft, the wings can be folded and tightly attached to the aircraft body, and the occupied space and the air resistance are small, so that the number of the sub aircraft can be increased; when cruising and flying, the wings can be unfolded to 90 degrees, so that the lift-drag ratio is improved, and the oil consumption is reduced; when the unmanned aerial vehicle reaches a task area and needs to dive and accelerate, the wings can be folded back to a certain angle, so that the flying speed is improved; comprehensive functions, excellent performance and stable flight.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
FIG. 1 shows a schematic view of a wing-folding mechanism according to one embodiment of the invention.
Fig. 2 shows a schematic view of wing deployment when the drone is cruising, according to one embodiment of the invention.
Figure 3 shows a schematic view of a drone recovery opportunity wing folded 45 ° according to one embodiment of the invention.
Fig. 4 shows a schematic block diagram of a drone according to one embodiment of the invention.
Description of the reference numerals
1. A transmission rod; 2. a worm; 3. a worm gear; 4. a first gear; 5. a transfer gear; 6. a second gear; 7. a right front wing; 8. a right rear wing; 9. a left front wing; 10. a left rear wing; 11. a fixed shaft; 12. a support device; 13. unmanned aerial vehicle body.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
The invention discloses a wing folding mechanism, comprising:
the fixed shaft is rotatably provided with a first gear and a second gear, the first gear and the second gear are respectively used for connecting one wing, and the first gear and the second gear are in transmission connection through a transmission gear;
the transmission assembly is used for driving the first gear to rotate;
when the transmission assembly drives the first gear to rotate, the first gear drives the second gear to rotate in the opposite direction through the transmission gear, and then the first gear and the second gear respectively drive one wing to fold or unfold.
Specifically, the wing folding mechanism of this scheme drives the wing through first gear, second gear cooperation transmission gear and folds or expand, can guarantee that the wing on first gear, the second gear can fold or expand in step, and can drive the wing and expand and folding action repeatedly, and the angle is controllable and the process is smooth and easy and more steady reliable.
As an alternative scheme, the transmission assembly comprises a worm wheel and a worm, the worm wheel is rotatably arranged on the fixed shaft and fixedly connected with the first gear, the worm and the worm wheel are in meshed transmission, and one end of the worm is used for being connected with the transmission rod.
Particularly, the worm wheel and the worm are adopted for transmission, so that the transmission is stable; the worm is fixedly connected with the transmission rod only through the end part, and the weight of the structure can be reduced.
As an alternative, the worm wheel is directly connected with the first gear, or the worm wheel is fixedly connected with the first gear through a connecting sleeve sleeved on the fixed shaft.
Alternatively, the first gear and the second gear are both half gears.
Specifically, half gear is the gear that has the tooth on only half rim promptly, because unmanned aerial vehicle is when using, the wing rotates 90 at most, consequently adopts half gear can enough realize the function, and then lightens structure weight.
As the alternative, still include strutting arrangement, strutting arrangement includes supporting part and U type portion, and the middle part of the blind end of U type portion is connected in the one end of fixed axle, and the supporting part is the bar, locates the open end of U type portion, and connects in the other end of fixed axle.
Particularly, the supporting device is arranged to support and protect the wing.
The invention also discloses an unmanned aerial vehicle wing device, which comprises: the transmission rod, a pair of wing folding mechanisms and two pairs of wings;
two ends of the transmission rod are respectively connected with a transmission component of the wing folding mechanism;
each pair of wings is arranged on one wing folding mechanism;
the transmission rod is used for connecting a driving motor to drive the first gear and the second gear to rotate through the transmission components of the pair of wing folding mechanisms, and further drives the two pairs of wings to fold or unfold.
Specifically, the wings of the unmanned aerial vehicle can improve the performance of the unmanned aerial vehicle, when the unmanned aerial vehicle flies in a cruising manner, the wings can be unfolded to 90 degrees, the lift-drag ratio is improved, and the oil consumption is reduced; when the unmanned aerial vehicle reaches a task area and needs to dive and accelerate, the wings can be folded back to a certain angle, so that the flying speed is improved; the unmanned aerial vehicle wing of this scheme can expand repeatedly and folding action, and it is controllable and the process is smooth and easy and more steady reliable with folding angle to expand.
As an alternative scheme, the transmission assembly comprises a worm wheel and a worm, the worm wheel is rotatably arranged on the fixed shaft and fixedly connected with the first gear, the worm and the worm wheel are in meshed transmission, and one end of the worm is connected to the transmission rod and is coaxial with the transmission rod.
In particular, the worm is fixedly connected with the transmission rod only through the end part, so that the structural weight can be reduced.
Alternatively, the fixed axes of a pair of wing folding mechanisms are parallel to each other.
Specifically, the top end of the fixed shaft of one wing folding mechanism is aligned with the bottom end of the fixed shaft of the other wing folding mechanism, so that interference generated when two pairs of wings are folded is avoided.
Alternatively, when the wing is unfolded, the length direction of the wing is perpendicular to the axis of the transmission rod; when the wing is folded, the length direction of the wing is parallel to the axis of the transmission rod.
The invention also discloses an unmanned aerial vehicle, which comprises an unmanned aerial vehicle body and the wing device of the unmanned aerial vehicle, wherein the unmanned aerial vehicle body is provided with a driving motor, and the driving motor is connected with a transmission rod of the wing device of the unmanned aerial vehicle.
Specifically, when the unmanned aerial vehicle is mounted on the mother aircraft, the wings can be folded and tightly attached to the aircraft body, and the occupied space and the air resistance are small, so that the number of the sub aircraft can be increased; when cruising and flying, the wings can be unfolded to 90 degrees, so that the lift-drag ratio is improved, and the oil consumption is reduced; when the unmanned aerial vehicle reaches a task area and needs to dive and accelerate, the wings can be folded back to a certain angle, so that the flying speed is improved; comprehensive functions, excellent performance and stable flight.
Further, the transfer line sets up inside the unmanned aerial vehicle body along the length direction of unmanned aerial vehicle body, and the length direction's of unmanned aerial vehicle body both ends are most advanced to reduce air resistance.
Example 1
FIG. 1 shows a schematic view of a wing-folding mechanism of the present embodiment; FIG. 2 shows a schematic view of the wing deployment of the present embodiment; fig. 3 shows a schematic view of the wing of the present embodiment folded at an angle.
As shown in fig. 1 to 3, the wing device of the unmanned aerial vehicle includes a transmission rod 1, a pair of wing folding mechanisms, a right front wing 7, a left front wing 9, a right rear wing 8, and a left rear wing 10;
each wing folding mechanism comprises a fixed shaft 11 and a transmission assembly, a first gear 4 and a second gear 6 are rotatably arranged on the fixed shaft 11, the first gear 4 and the second gear 6 are in transmission connection through a transmission gear 5, and the two fixed shafts 11 are parallel to each other;
the top end of a fixed shaft 11 of the front wing folding mechanism is provided with a supporting device 12, the supporting device 12 comprises a supporting part and a U-shaped part, the middle part of the closed end of the U-shaped part is connected to the top end of the fixed shaft 11, the supporting part is strip-shaped, is arranged at the open end of the U-shaped part and is connected to the bottom end of the fixed shaft, a first gear 4 on the supporting part is connected with a right front wing 7, and a second gear 6 is connected with a left front wing 9;
the top end of a fixed shaft 11 of the rear wing folding mechanism is also provided with a supporting device 12, the structure of the supporting device is the same, a first gear 4 on the supporting device is connected with a right rear wing 8, and a second gear 6 is connected with a left rear wing 10.
The transmission assembly comprises a worm wheel 3 and a worm 2, the worm wheel 3 is rotatably arranged on the fixed shaft 11 and is fixedly connected with a first gear 4 on the corresponding fixed shaft 11, the worm 2 is in meshing transmission with the worm wheel 3, and the first gear 4 and the second gear 6 are both half gears;
wherein, on the fixed shaft 11 of the wing folding mechanism at the front part, the worm wheel 3 is directly connected with the first gear 4; on a fixed shaft 11 of the wing folding mechanism at the rear part, a worm wheel 3 is fixedly connected with a first gear 4 through a connecting sleeve sleeved on the fixed shaft 11.
The transmission rod 1 is used for connecting a driving motor, two ends of the transmission rod 1 are respectively connected to the end part of a worm 2 of a wing folding mechanism and are coaxial with the worm 2, the transmission rod 1 drives the worms 3 at two ends to rotate, then the respective worm wheels 3 drive respective first gears 4 to rotate, the first gears 4 drive corresponding second gears 6 to rotate in opposite directions through corresponding transmission gears 5, and then the first gears and the second gears respectively drive a wing to fold or unfold; when the wing is unfolded, the length direction of the wing is vertical to the axis of the transmission rod 1; when the wing is folded, the length direction of the wing is parallel to the axis of the transmission rod 1.
When the unmanned aerial vehicle is mounted on the mother aircraft, the wings can be folded and tightly attached to the aircraft body (as shown in figure 1), and the occupied space and air resistance are small, so that the number of sub aircraft can be increased; when the unmanned aerial vehicle flies in a cruising mode, the wings can be unfolded to 90 degrees (as shown in figure 2), so that the lift-drag ratio is improved, and the oil consumption is reduced; when the unmanned aerial vehicle reaches a task area and needs to dive and accelerate, the wings can be folded back to a certain angle (as shown in fig. 3), so that the flying speed is increased; the unmanned aerial vehicle wing of this scheme can expand repeatedly and folding action, and it is controllable and the process is smooth and easy and more steady reliable with folding angle to expand.
Example 2
Fig. 4 shows a schematic structural diagram of the unmanned aerial vehicle of the present embodiment.
As shown in fig. 4, the both ends of the length direction of unmanned aerial vehicle body 13 are most advanced, be equipped with the unmanned aerial vehicle wing device among embodiment 1 on the unmanned aerial vehicle body 13, the fixed axle and the fuselage deckle board fixed connection of unmanned aerial vehicle wing device, the transfer line sets up inside the unmanned aerial vehicle body along the length direction of unmanned aerial vehicle body 13, be equipped with driving motor on the unmanned aerial vehicle body, driving motor connects the transfer line, drive transfer line corotation or reversal.
When the unmanned aerial vehicle is mounted on the mother aircraft, the wings can be folded and tightly attached to the aircraft body, and the occupied space and the air resistance are small, so that the number of the sub aircraft can be increased; when cruising and flying, the wings can be unfolded to 90 degrees, so that the lift-drag ratio is improved, and the oil consumption is reduced; when the unmanned aerial vehicle reaches a task area and needs to dive and accelerate, the wings can be folded back to a certain angle, so that the flying speed is improved; comprehensive functions, excellent performance and stable flight.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A wing-folding mechanism, comprising:
the wing aircraft comprises a fixed shaft, a wing, a first wing, a second wing, a first gear, a second gear, a third gear and a fourth gear, wherein the first gear and the second gear are rotatably arranged on the fixed shaft and are respectively used for being connected with one wing, and the first gear and the second gear are in transmission connection through a transmission gear;
the transmission assembly is used for driving the first gear to rotate;
when the transmission assembly drives the first gear to rotate, the first gear drives the second gear to rotate in the opposite direction through the transmission gear, and then the first gear and the second gear drive one wing to fold or unfold respectively.
2. The wing folding mechanism of claim 1, wherein the transmission assembly includes a worm wheel and a worm, the worm wheel is rotatably disposed on the fixed shaft and is fixedly connected with the first gear, the worm is in mesh transmission with the worm wheel, and one end of the worm is used for connecting a transmission rod.
3. The wing folding mechanism of claim 2, wherein the worm gear is directly connected to the first gear, or the worm gear is fixedly connected to the first gear through a connecting sleeve sleeved on the fixed shaft.
4. The wing-fold mechanism of claim 1, wherein the first gear and the second gear are each half-gears.
5. The wing folding mechanism of claim 1, further comprising a support device, the support device including a support portion and a U-shaped portion, a middle portion of a closed end of the U-shaped portion being connected to one end of the fixed shaft, the support portion being strip-shaped and disposed at an open end of the U-shaped portion and connected to the other end of the fixed shaft.
6. An unmanned aerial vehicle wing device, comprising: a transmission rod, a pair of wing folding mechanisms according to any one of claims 1-5 and two pairs of wings;
two ends of the transmission rod are respectively connected with a transmission component of the wing folding mechanism;
each pair of said wings being mounted on one of said wing folding mechanisms;
the transmission rod is used for being connected with a driving motor so as to drive the first gear and the second gear to rotate through the transmission components of the pair of wing folding mechanisms, and further drive the two pairs of wings to fold or unfold.
7. The unmanned aerial vehicle wing device of claim 6, wherein the transmission assembly comprises a worm wheel and a worm, the worm wheel is rotatably disposed on the fixed shaft and fixedly connected with the first gear, the worm is in meshing transmission with the worm wheel, and one end of the worm is connected to the transmission rod and is coaxial with the transmission rod.
8. The drone wing device of claim 6, wherein the fixed axes of the pair of wing fold mechanisms are parallel to each other.
9. The drone wing device of claim 8, wherein the length of the wing is perpendicular to the axis of the drive rod when the wing is deployed; when the wing is folded, the length direction of the wing is parallel to the axis of the transmission rod.
10. An unmanned aerial vehicle, characterized in that, including unmanned aerial vehicle body and according to any one of claims 6-9 the unmanned aerial vehicle wing device, the unmanned aerial vehicle body is equipped with driving motor, driving motor connects in the transfer line of unmanned aerial vehicle wing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302979.XA CN112357056A (en) | 2020-11-19 | 2020-11-19 | Wing folding mechanism, wing device and unmanned aerial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302979.XA CN112357056A (en) | 2020-11-19 | 2020-11-19 | Wing folding mechanism, wing device and unmanned aerial vehicle |
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| CN112357056A true CN112357056A (en) | 2021-02-12 |
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| CN202011302979.XA Pending CN112357056A (en) | 2020-11-19 | 2020-11-19 | Wing folding mechanism, wing device and unmanned aerial vehicle |
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Cited By (1)
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| CN114212237A (en) * | 2021-12-23 | 2022-03-22 | 中国航空工业集团公司西安飞机设计研究所 | Accurate air-drop/airborne power device |
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Application publication date: 20210212 |