Telescopic deformable wing and aircraft

By designing telescopic deformation wings, the telescopic deformation of the wings is achieved using scissors telescopic mechanisms and drive mechanisms, the problem of insufficient aerodynamic characteristics of traditional aircraft at different flight speeds is solved, and the flight performance and endurance are improved.

CN117262201BActive Publication Date: 2025-08-19HARBIN INST OF TECH
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Patent Information

Application Number
CN202311256804.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-26
Publication Date
2025-08-19
Estimated Expiration
2043-09-26

AI Technical Summary

Technical Problem

The wing geometry of traditional aircraft remains unchanged, and the shape cannot be freely changed at different flight speeds to obtain the best aerodynamic characteristics.

Method used

A telescopic deformation wing is designed, and the telescopic deformation of the wing is realized through the scissor telescopic mechanism and the driving mechanism, including the alternating arrangement of the first wing rib and the second wing rib. The extension or contraction of the scissor telescopic mechanism drives the movement of the wing rib in the direction of the wingspan chord length to achieve the expansion and contraction of the wing.

Benefits of technology

It realizes that the wings can freely change their forms to obtain the best aerodynamic characteristics at different flight speeds, improve flight performance and endurance, and ensure flight stability and safety.

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Abstract

The present invention provides a telescopic deformable wing and an aircraft, relating to the field of aircraft technology. The telescopic deformable wing includes a wingtip, a wing root, a deformable wing section, a drive mechanism, and a scissor-type telescopic mechanism. The wingtip and wing root are respectively hinged to the two ends of the scissor-type telescopic mechanism. The drive mechanism is disposed on the wing root. The deformable wing section includes a first wing rib and a second wing rib. In the span direction, a plurality of first wing ribs and a plurality of second wing ribs are alternately disposed on the scissor-type telescopic mechanism. The first wing rib includes a leading edge structure and a trailing edge structure. The leading edge structure and the trailing edge structure are driven away from or toward each other in the chord length direction by the extension or contraction of the scissor-type telescopic mechanism. When the drive mechanism drives the scissor-type telescopic mechanism to extend, the distance between any adjacent first wing ribs and second wing ribs is increased along the span direction. Compared to the prior art, the telescopic deformable wing of the present invention can obtain optimal aerodynamic characteristics by freely changing its own shape.
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Description

Technical Field

[0001] The present invention relates to the technical field of aircraft, and in particular to a telescopic and deformable wing and an aircraft. Background Art

[0002] Due to the different aerodynamic requirements of aircraft in the subsonic, transonic, and supersonic regimes, straight wings with high aspect ratios are often used to achieve a higher lift coefficient at low speeds. However, at transonic and supersonic speeds, straight wings generate significant wave drag, severely impacting flight performance. On the other hand, a short wing configuration can save space for takeoff and landing and improve stealth, while a long wing configuration can increase the aircraft's endurance. However, traditional aircraft maintain a fixed geometric shape and cannot freely adapt their form to achieve optimal aerodynamic characteristics. Summary of the Invention

[0003] The problem to be solved by the present invention is: how to provide a deformable wing that can be freely extended and retracted according to different needs.

[0004] The present invention provides a telescopic deformable wing, comprising: a wingtip, a wing root, a deformable wing section, a driving mechanism, and a scissor-type telescopic mechanism, wherein the wingtip and the wing root are respectively hinged to the two ends of the scissor-type telescopic mechanism, and the deformable wing section is connected to the scissor-type telescopic mechanism; the driving mechanism is arranged on the wing root, and the driving mechanism is used to drive the scissor-type telescopic mechanism to telescope and deform; the deformable wing section comprises a first wing rib and a second wing rib, and in the wingspan direction, a plurality of the first wing ribs and a plurality of the second wing ribs are alternately arranged on the scissor-type telescopic mechanism; the first wing rib comprises a leading edge structure and a trailing edge structure, and the scissor-type telescopic ... first wing rib comprises a leading edge structure and a trailing edge structure, and the scissor-type telescopic mechanism is used to drive the scissor-type telescopic mechanism to telescope and deform; the first wing rib comprises a leading edge structure and a trailing edge structure, and the scissor-type telescopic mechanism is used to drive the scissor-type telescopic mechanism to telescope and deform; the first wing rib comprises a leading edge structure and a trailing edge structure, and the s The extension or contraction is used to drive the leading edge structure and the trailing edge structure to move away from or closer to each other in the chord length direction; when the driving mechanism drives the scissors-type telescopic mechanism to extend, it is used to increase the distance between any adjacent first ribs and second ribs along the span direction; when the driving mechanism drives the scissors-type telescopic mechanism to contract, it is used to move any adjacent two second ribs toward each other along the span direction until they abut against each other, and make the leading edge structure and trailing edge structure of the first rib located between the two second ribs approach each other so that the first rib is accommodated between the two second ribs.

[0005] The telescopic wing provided by the present invention has, but is not limited to, the following beneficial effects compared to the prior art:

[0006] The telescopic deformable wing described in the present invention can drive the scissor-type telescopic mechanism to telescope and deform through a driving mechanism. On the one hand, the scissor-type telescopic mechanism can drive the wingtip to move away from the wing root along the span direction. On the other hand, when the driving mechanism drives the scissor-type telescopic mechanism to extend, it is used to increase the distance between any adjacent first ribs and second ribs along the span direction, and at the same time, the leading edge structure and the trailing edge structure of the first wing rib are away from each other in the chord direction (perpendicular to the span direction). When the driving mechanism drives the scissor-type telescopic mechanism to contract, it is used to move any adjacent two second ribs toward each other along the span direction until they abut each other, and at the same time, the leading edge structure and the trailing edge structure of the first wing rib are close to each other in the chord direction. In this way, the first wing rib cover located between the two second ribs can be arranged between the two second ribs, thereby realizing the telescopic function of the wing in the span direction, and the first wing rib in the chord direction can be telescoped and extended accordingly. In this way, the telescopic deformable wing can obtain the best aerodynamic characteristics by freely changing its own shape.

[0007] Optionally, the scissors-type telescopic mechanism includes a plurality of mutually hinged scissors-type structures, the scissors-type structures including a first scissors-type rod and a second scissors-type rod, the middle portion of the first scissors-type rod and the middle portion of the second scissors-type rod being hinged to each other through a first pin shaft, and each first pin shaft being correspondingly connected to a second wing rib, and the extension or contraction of the scissors-type telescopic mechanism is used to drive any two adjacent first pin shafts to move away from or closer to each other along the wingspan direction.

[0008] Optionally, any two adjacent scissor structures are hinged to each other via a second pin and a third pin, respectively, and the extension or contraction of the scissor telescopic mechanism is used to drive the second pin and the third pin to move toward or away from each other along the chord length direction, the leading edge structure comprises a first wing plate, a first rod and a second rod, the first rod and the second rod are spaced apart and connected to the side of the first wing plate facing the trailing edge structure, and the extension direction of the first rod and the second rod are both in the chord length direction, a first long slot is provided on the first rod along the chord length direction, and a first through hole is provided on the end of the second rod away from the first wing plate; the trailing edge structure comprises a second wing plate, a third rod and a fourth rod, the third The rod and the fourth rod are connected at intervals to the side of the second wing plate facing the leading edge structure, and the extension directions of the third rod and the fourth rod are both in the chord length direction, the third rod is provided with a second long slot hole along the chord length direction, and the end of the fourth rod away from the second wing plate is provided with a second through hole; the fourth rod is overlapped on the top of the first rod, and the third rod is overlapped on the top of the second rod, the second pin shaft passes through the first long slot hole and is connected to the second through hole, the third pin shaft passes through the second long slot hole and is connected to the first through hole, the second pin shaft is used to move in the first long slot hole along the chord length direction, and the third pin shaft is used to move in the second long slot hole along the chord length direction.

[0009] Optionally, a window is provided in the middle portion of the second wing rib, the middle portions of the first scissor rod and the second scissor rod are located at the window, and the first pin is connected to the window.

[0010] Optionally, the telescopic deformable wing also includes guide rods, two of which pass through the plurality of second wing ribs respectively, one of which is located between the first rod and the second rod, and the other is located between the third rod and the fourth rod, one end of the two guide rods is respectively connected to the wing tip, and the other end extends into the wing root respectively.

[0011] Optionally, the driving mechanism includes a motor and a transmission connecting rod, the motor is arranged in the wing root, one end of the transmission connecting rod is connected to the motor driving, and the other end is connected to the second wing rib close to the wing root direction, and the motor is used to drive the scissors telescopic mechanism to telescope and deform through the transmission connecting rod.

[0012] Optionally, the transmission connecting rod includes a first connecting rod, a second connecting rod, a third connecting rod and a shaft rod, one end of the first connecting rod is drivingly connected to the output shaft of the motor, the other end of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod is rotatably connected to the shaft rod, one end of the third connecting rod is connected to the shaft rod, and the other end of the third connecting rod is connected to the second rib.

[0013] Optionally, the telescopic deformable wing also includes a guide structure, which includes a square block and a connecting rod connected to the square block. The guide structure is connected to the inner side wall of the wing root toward the deformable wing section through the connecting rod. A third through hole is provided on the side wall of the wing root toward the deformable wing section. A through cavity structure is provided on the square block. The third connecting rod passes through the third through hole and is slidably connected to the cavity structure.

[0014] Optionally, the second rib includes a rib body, and the two side walls of the rib body facing the two adjacent first ribs are respectively formed with continuous edge structures, and the edge structures of any two adjacent rib bodies are used to abut against each other to form a closed cavity, and the cavity is used to accommodate the first rib.

[0015] In addition, the present invention also provides an aircraft, comprising the telescopic and deformable wings as described above.

[0016] Since the technical improvements and technical effects of the aircraft are the same as those of the telescopic deformable wing, the technical effects of the aircraft will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of a telescopic morphing wing according to an embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram of a second rib according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic structural diagram of a scissor-type telescopic mechanism according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic structural diagram of a first rib according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic structural diagram of a first wing rib assembled on a scissor-type telescopic mechanism according to an embodiment of the present invention;

[0022] Figure 6 Schematic diagram of the structure of the driving mechanism of an embodiment of the present invention;

[0023] Figure 7This is a schematic structural diagram of a wingtip according to an embodiment of the present invention;

[0024] Figure 8 This is a schematic structural diagram of a wing root according to an embodiment of the present invention;

[0025] Figure 9 Schematic diagram of the guide structure of an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Wing tip; 2. Wing root; 21. Third through hole; 3. First wing rib; 31. Leading edge structure; 311. First wing panel; 312. First rod; 313. Second rod; 32. Trailing edge structure; 321. Second wing panel; 322. Third rod; 323. Fourth rod; 4. Second wing rib; 41. Window; 42. Wing rib body; 43. Edge structure; 5. Scissors structure; 51. First scissors rod; 52. Second scissors rod; 53. Second pin; 54. Third pin; 6. Guide rod; 7. Motor; 8. Transmission connecting rod; 81. First connecting rod; 82. Second connecting rod; 83. Third connecting rod; 84. Shaft rod; 9. Guide structure; 91. Square block; 92. Cavity structure; 93. Connecting rod. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the description of the present invention, the directions or positional relationships indicated by “up”, “down”, “left”, “right”, “top”, “bottom”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections via an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] Throughout this specification, references to terms such as "an embodiment," "one embodiment," and "an implementation" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

[0032] Moreover, the X-axis in the accompanying drawings represents the horizontal direction, that is, the left and right position, and the positive direction of the X-axis (that is, the direction of the arrow of the X-axis) represents the left, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the right; the Y-axis in the accompanying drawings represents the longitudinal direction, that is, the front and back position, and the positive direction of the Y-axis (that is, the direction of the arrow of the Y-axis) represents the back, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the front.

[0033] It should also be noted that the aforementioned X-axis and Y-axis are only for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0034] like Figure 1 As shown, the telescopic deformable wing of the embodiment of the present invention includes: a wing tip 1, a wing root 2, a deformable wing section, a driving mechanism and a scissor-type telescopic mechanism, wherein the wing tip 1 and the wing root 2 are respectively hinged to the two ends of the scissor-type telescopic mechanism, and the deformable wing section is connected to the scissor-type telescopic mechanism; the driving mechanism is arranged on the wing root 2, and the driving mechanism is used to drive the scissor-type telescopic mechanism to telescope and deform; the deformable wing section includes a first wing rib 3 and a second wing rib 4, and in the wingspan direction, a plurality of the first wing ribs 3 and a plurality of the second wing ribs 4 are alternately arranged on the scissor-type telescopic mechanism; the first wing rib 3 includes a leading edge structure 31 and a trailing edge structure 32, which are connected to the scissor-type telescopic mechanism through the scissor-type telescopic mechanism The extension or contraction is used to drive the leading edge structure 31 and the trailing edge structure 32 to move away from or approach each other in the chord length direction; when the driving mechanism drives the scissors-type telescopic mechanism to extend, it is used to increase the distance between any adjacent first rib 3 and second rib 4 along the span direction; when the driving mechanism drives the scissors-type telescopic mechanism to contract, it is used to move any adjacent two second ribs 4 toward each other along the span direction until they abut each other, and make the leading edge structure 31 and the trailing edge structure 32 of the first rib 3 located between the two second ribs 4 approach each other so that the first rib 3 is accommodated between the two second ribs 4.

[0035] In this embodiment, combined with the Figure 1As shown, the scissor-type telescopic mechanism can be driven to stretch and deform by the driving mechanism. On the one hand, the scissor-type telescopic mechanism can be moved along the wingspan direction (attached Figure 1 On the other hand, when the driving mechanism drives the scissor-type telescopic mechanism to extend, it is used to increase the distance between any adjacent first ribs 3 and second ribs 4 along the span direction, and at the same time, the leading edge structure 31 and the trailing edge structure 32 of the first rib 3 are moved in the chord direction (attached Figure 1 When the driving mechanism drives the scissor-type telescopic mechanism to contract, it is used to move any two adjacent second wing ribs 4 toward each other along the span direction until they abut against each other, and at the same time, the leading edge structure 31 and the trailing edge structure 32 of the first wing rib 3 approach each other in the chord direction to realize the contraction of the first wing rib 3, so that the first wing rib 3 located between the two second wing ribs 4 can be accommodated between the two second wing ribs 4, thereby realizing the contraction of the entire wing, thus realizing the telescopic function of the wing in the span direction and the follow-up telescopic function in the chord direction.

[0036] It should be noted that the morphing wing sections are equipped with variable-stiffness skins, which can be riveted or glued onto the wing sections. These variable-stiffness skins are made of shape-memory material. At room temperature, they exhibit high stiffness, capable of withstanding aerodynamic loads during flight. When the temperature rises above the glass transition temperature, they exhibit low modulus, enabling the wing structure to deform and flex. The support provided by the morphing wing sections allows the skin material to continuously deform and bear loads. When the temperature of the shape-memory skin material falls below the glass transition temperature, the skin becomes rigid, achieving long-term load-bearing capacity. As can be seen from the above, the deformable wing segment expands and contracts simultaneously and smoothly in both the span and chord directions during the expansion and contraction process. Therefore, the variable stiffness skin covering it can avoid stacking, enabling both expansion and contraction of the wing in the span direction and the ribs (the leading edge structure 31 and the trailing edge structure 32 of the first rib 3) in the chord direction. This results in a smooth, seamless, and continuously load-bearing variable stiffness telescopic wing structure, enabling smooth and continuous deformation and load-bearing performance during flight, ensuring flight stability and safety. Through continuous and controllable adjustment of the wing structure, the aircraft can maintain its optimal aerodynamic shape under different mission conditions, ensuring it maintains its optimal flight state and improving flight maneuverability.

[0037] In addition, combined with the Figure 7 and attached Figure 8 As shown, the wing tip 1 and the wing root 2 are both hollow structures, and windows are respectively provided on the side walls opposite to the wing tip 1 and the wing root 2. Each window is connected to a corresponding pin shaft for hinged connection with the scissor-type telescopic mechanism.

[0038] Optionally, the scissors-type telescopic mechanism includes a plurality of mutually hinged scissors-type structures 5, the scissors-type structures 5 including a first scissors-type rod 51 and a second scissors-type rod 52, the middle part of the first scissors-type rod 51 and the middle part of the second scissors-type rod 52 being hinged to each other through a first pin, and each first pin is correspondingly connected to a second wing rib 4, and the extension or contraction of the scissors-type telescopic mechanism is used to drive any two adjacent first pins to move away from or closer to each other along the span direction.

[0039] In this embodiment, combined with the Figure 3 As shown, the scissor-type telescopic mechanism includes a plurality of mutually hinged scissor-type structures 5, wherein the scissor-type structure 5 includes a first scissor-type rod 51 and a second scissor-type rod 52. The middle portion of the first scissor-type rod 51 and the middle portion of the second scissor-type rod 52 can be hinged to each other through a first pin, that is, the first pin is hinged at the center position of the scissor-type structure 5. The first scissor-type rod 51 and the second scissor-type rod 52 form an X-shaped structure. It can be understood that the scissor-type telescopic mechanism is composed of a plurality of mutually hinged X-shaped structures. Figure 2 As shown, each first pin is connected to a corresponding second rib 4, which can be extended or contracted along the span direction (attached) by the scissor telescopic mechanism. Figure 1 In the X-axis direction, any two adjacent first pins are driven to move away from or toward each other, so that each first pin drives the corresponding second rib 4 to move.

[0040] Optionally, any two adjacent scissor structures 5 are hinged to each other through a second pin shaft 53 and a third pin shaft 54, respectively, and the extension or contraction of the scissor telescopic mechanism is used to drive the second pin shaft 53 and the third pin shaft 54 to move toward or away from each other along the chord length direction. The leading edge structure 31 includes a first wing plate 311, a first rod 312 and a second rod 313, the first rod 312 and the second rod 313 are spaced apart and connected to the side of the first wing plate 311 facing the trailing edge structure 32, and the extension direction of the first rod 312 and the second rod 313 are both in the chord length direction, a first long slot is opened on the first rod 312 along the chord length direction, and a first through hole is opened on the end of the second rod 313 away from the first wing plate 311; the trailing edge structure 32 includes a second wing plate 321, a third rod 322 and a fourth rod 323 The third rod 322 and the fourth rod 323 are connected to the side of the second wing plate 321 facing the leading edge structure 31 at intervals, and the extension directions of the third rod 322 and the fourth rod 323 are both in the chord length direction. The third rod 322 is provided with a second long slot hole along the chord length direction, and the end of the fourth rod 323 away from the second wing plate 321 is provided with a second through hole; the fourth rod 323 is overlapped on the top of the first rod 312, and the third rod 322 is overlapped on the top of the second rod 313. The second pin shaft 53 passes through the first long slot hole and is connected to the second through hole, and the third pin shaft 54 passes through the second long slot hole and is connected to the first through hole. The second pin shaft 53 is used to move in the first long slot hole along the chord length direction, and the third pin shaft 54 is used to move in the second long slot hole along the chord length direction.

[0041] In this embodiment, combined with the Figure 3 As shown, any two adjacent scissor structures 5 (the first scissor rod 51 and the second scissor rod 52) are hinged to each other through the second pin 53 and the third pin 54 respectively, and the scissor telescopic mechanism can be extended or contracted along the chord length direction (attached Figure 1 The Y-axis direction drives the second pin 53 and the third pin 54 to move toward or away from each other. Figure 4 and attached Figure 5 As shown, the fourth rod 323 is overlapped on the top of the first rod 312, the third rod 322 is overlapped on the top of the second rod 313, the second pin 53 passes through the first long slot and is connected to the second through hole, and the third pin 54 passes through the second long slot and is connected to the first through hole. In this way, when the second pin 53 and the third pin 54 move toward each other (that is, the scissors telescopic mechanism extends), the leading edge structure 31 and the trailing edge structure 32 will be driven to move away from each other (see FIG. Figure 1In the middle Y-axis direction), similarly, when the second pin shaft 53 and the third pin shaft 54 move away from each other (that is, the scissors-type telescopic mechanism contracts), the leading edge structure 31 and the trailing edge structure 32 will be driven to move toward each other until they abut against each other, so that the first wing rib 3 is covered between the two second wing ribs 4. After the leading edge structure 31 and the trailing edge structure 32 are docked (the first wing plate 311 contacts the second wing plate 321), the overall planar shape of the first wing rib 3 can be any one of a flat convex shape, a double convex shape, a symmetrical shape and an arc shape.

[0042] Optionally, a window 41 is provided in the middle of the second wing rib 4 , the middle portions of the first scissor rod 51 and the second scissor rod 52 are located at the window 41 , and the first pin is connected to the window 41 .

[0043] In this embodiment, combined with the Figure 2 As shown, a window 41 is provided in the middle of the second rib 4, wherein the first pin is connected to the window 41. The window 41 can ensure that the movement process of the scissor structure 5 (the first scissor rod 51 and the second scissor rod 52) is not interfered with.

[0044] Optionally, the telescopic deformable wing also includes a guide rod 6, two of the guide rods 6 respectively passing through the plurality of second wing ribs 4, one of the guide rods 6 being located between the first rod 312 and the second rod 313, and the other guide rod 6 being located between the third rod 322 and the fourth rod 323, one end of the two guide rods 6 being respectively connected to the wing tip 1, and the other end being respectively extended into the wing root 2.

[0045] In this embodiment, combined with the Figure 4 and attached Figure 6 As shown, the second rib 4 is along the direction of the length (attached Figure 1 There are two circular through holes spaced apart in the middle X-axis direction. The guide rod 6 is a long round rod that matches the shape of the circular through hole. The two guide rods 6 pass through the two circular through holes of each second wing rib 4, that is, each second wing rib 4 can slide along the guide rod 6. Figure 7 and attached Figure 8 As shown, two circular through holes are respectively provided on the wing tip 1 and the wing root 2 at intervals. One end of the two guide rods 6 is connected to the circular through hole of the wing tip 1, and the other end extends into the wing root 2 respectively. Even when the scissor-type telescopic mechanism is extended to the maximum stroke, the guide rod 6 will not fall out of the wing root 2.

[0046] Optionally, the driving mechanism includes a motor 7 and a transmission connecting rod 8, the motor 7 is arranged in the wing root 2, one end of the transmission connecting rod 8 is connected to the motor 7, and the other end is connected to the second wing rib 4 close to the wing root 2, and the motor 7 is used to drive the scissors telescopic mechanism to telescope and deform through the transmission connecting rod 8.

[0047] Optionally, the transmission link 8 includes a first link 81, a second link 82, a third link 83 and a shaft 84, one end of the first link 81 is drive-connected to the output shaft of the motor 7, the other end of the first link 81 is hinged to one end of the second link 82, the other end of the second link 82 is rotatably connected to the shaft 84, one end of the third link 83 is rotatably connected to the shaft 84, the other end of the third link 83 is connected to the second wing rib 4, and the second link 82 and the third link 83 are respectively arranged perpendicular to the shaft 84.

[0048] In this embodiment, combined with the Figure 6 As shown, the motor 7 can be connected to the wing root 2 by bolts, one end of the first connecting rod 81 is drive-connected to the output shaft of the motor 7, the other end of the first connecting rod 81 is hinged to one end of the second connecting rod 82, and the other end of the second connecting rod 82 is rotatably connected to the shaft 84, wherein the shaft 84 is arranged in the vertical direction, the second connecting rod 82 is connected to the middle part of the shaft 84, and the two ends of the shaft 84 are respectively connected to the third connecting rod 83, and the two third connecting rods 83 pass through the side wall of the wing root 2 toward the deformation wing section, and are respectively connected to the second wing rib 4 closest to the wing root 2. In this way, the third connecting rod 83 can be driven to perform reciprocating linear motion by driving the motor 7 to drive the scissors telescopic mechanism to telescope and deform.

[0049] Optionally, the telescopic deformable wing also includes a guide structure 9, which includes a square block 91 and a connecting rod 93 connected to the square block 91. The guide structure 9 is connected to the inner side wall of the wing root 2 toward the deformable wing section through the connecting rod 93. The side wall of the wing root 2 toward the deformable wing section is provided with a third through hole 21. A through cavity structure 92 is provided on the square block 91. The third connecting rod 83 passes through the third through hole 21 and is slidably connected to the cavity structure 92.

[0050] In this embodiment, combined with the Figure 9 As shown, the connecting rod 93 can be connected to the inner side wall of the wing root 2 toward the deformed wing section by bolts, wherein the end of the square block 91 can abut against the inner side wall of the wing root 2 toward the deformed wing section, and the third through hole 21 on the side wall of the wing root 2 toward the deformed wing section is coaxially arranged with the cavity structure 92. In this way, the third connecting rod 83 passes through the third through hole 21 and can be slidably connected in the cavity structure 92, and the guide structure 9 can play a guiding role for the third connecting rod 83.

[0051] Optionally, the second rib 4 includes a rib body 42, and the two side walls of the rib body 42 facing the two adjacent first ribs 3 are respectively formed with continuous edge structures 43, and the edge structures 43 of any two adjacent rib bodies 42 are used to abut against each other to form a closed cavity, and the cavity is used to accommodate the first rib 3.

[0052] In this embodiment, combined with the Figure 2 As shown, the two side walls of the rib body 42 facing the adjacent first ribs 3 are each formed with a continuous edge structure 43. The edge structures 43 of any two adjacent rib bodies 42 can abut against each other, forming a closed cavity that can accommodate the first ribs 3. That is, through the contraction of the scissor-type telescopic mechanism, any two adjacent rib bodies 42 can cover the first ribs 3 within this cavity. In addition, when the two second ribs 4 approach each other, the skin can be accommodated in this cavity.

[0053] In addition, the present invention also provides an aircraft, comprising the telescopic and deformable wings as described above.

[0054] Since the technical improvements and technical effects of the aircraft are the same as those of the telescopic deformable wing, the technical effects of the aircraft will not be described in detail.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0056] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A telescopic wing, characterized in that: include: A wingtip (1), a wing root (2), a deformable wing section, a driving mechanism, and a scissor-type telescopic mechanism, wherein the wingtip (1) and the wing root (2) are respectively hinged to the two ends of the scissor-type telescopic mechanism, and the deformable wing section is connected to the scissor-type telescopic mechanism; the driving mechanism is arranged on the wing root (2), and the driving mechanism is used to drive the scissor-type telescopic mechanism to telescope and deform; the deformable wing section includes a first wing rib (3) and a second wing rib (4), and in the wingspan direction, a plurality of the first wing ribs (3) and a plurality of the second wing ribs (4) are alternately arranged on the scissor-type telescopic mechanism; the first wing rib (3) includes a leading edge structure (31) and a trailing edge structure (32), and is used to drive the leading edge structure (31) and the trailing edge structure (32) to move away from or approach each other in the chord length direction through the extension or contraction of the scissor-type telescopic mechanism; when the driving mechanism drives the scissor-type telescopic mechanism to extend, the wing section is used to move away from or approach each other in the wingspan direction The distance between any adjacent first wing ribs (3) and second wing ribs (4) is increased; when the driving mechanism drives the scissor-type telescopic mechanism to contract, it is used to move any two adjacent second wing ribs (4) toward each other along the span direction until they abut against each other, and to make the leading edge structure (31) and the trailing edge structure (32) of the first wing rib (3) located between the two second wing ribs (4) approach each other so that the first wing rib (3) is accommodated between the two second wing ribs (4); the second wing rib (4) includes a wing rib body (42), and the two side walls of the wing rib body (42) facing the two adjacent first wing ribs (3) are respectively formed with continuous edge structures (43), and the edge structures (43) of any two adjacent wing rib bodies (42) are used to abut against each other to form a closed cavity, and the cavity is used to accommodate the first wing rib (3).

2. The telescopic wing according to claim 1, characterized in that: The scissor-type telescopic mechanism comprises a plurality of mutually hinged scissor-type structures (5), wherein the scissor-type structures (5) comprise a first scissor-type rod (51) and a second scissor-type rod (52), wherein the middle portion of the first scissor-type rod (51) and the middle portion of the second scissor-type rod (52) are hinged to each other via a first pin shaft, and each of the first pin shafts is correspondingly connected to a second rib (4), and the scissor-type telescopic mechanism is used to drive any two adjacent first pin shafts to move away from or toward each other along the wingspan direction through the extension or contraction of the scissor-type telescopic mechanism.

3. The telescopic morphing wing according to claim 2, characterized in that: Any two adjacent scissor structures (5) are hinged to each other through a second pin shaft (53) and a third pin shaft (54), respectively. The extension or contraction of the scissor telescopic mechanism is used to drive the second pin shaft (53) and the third pin shaft (54) to move toward or away from each other along the chord length direction. The leading edge structure (31) includes a first wing plate (311), a first rod (312) and a second rod (313). The first rod (312) and the second rod (313) are spaced apart and connected to a side of the first wing plate (311) facing the trailing edge structure (32). The first rod (312) and the second rod (313) extend in the chord length direction. A first long slot is provided on the first rod (312) along the chord length direction. A first through hole is provided on the end of the second rod (313) away from the first wing plate (311). The trailing edge structure (32) includes a second wing plate (321), a third rod (322) and a fourth rod (323). 23), the third rod (322) and the fourth rod (323) are connected at intervals to the side of the second wing plate (321) facing the leading edge structure (31), and the extension directions of the third rod (322) and the fourth rod (323) are both in the chord length direction, the third rod (322) is provided with a second long slot hole along the chord length direction, and the end of the fourth rod (323) away from the second wing plate (321) is provided with a second through hole; the fourth rod (323) is overlapped on the top of the first rod (312), and the third rod (322) is overlapped on the top of the second rod (313), the second pin shaft (53) passes through the first long slot hole and is connected to the second through hole, the third pin shaft (54) passes through the second long slot hole and is connected to the first through hole, the second pin shaft (53) is used to move in the first long slot hole along the chord length direction, and the third pin shaft (54) is used to move in the second long slot hole along the chord length direction.

4. The telescopic morphing wing according to claim 2, characterized in that: A window (41) is provided in the middle of the second wing rib (4), the middle portions of the first scissor rod (51) and the second scissor rod (52) are located at the window (41), and the first pin is connected to the window (41).

5. The telescopic morphing wing according to claim 3, characterized in that: It also includes guide rods (6), two of the guide rods (6) respectively passing through the plurality of second wing ribs (4), one of the guide rods (6) being located between the first rod (312) and the second rod (313), and the other of the guide rods (6) being located between the third rod (322) and the fourth rod (323), one end of the two guide rods (6) being respectively connected to the wing tip (1), and the other end thereof being respectively extended into the wing root (2).

6. The telescopic morphing wing according to claim 1, characterized in that: The driving mechanism comprises a motor (7) and a transmission connecting rod (8), wherein the motor (7) is arranged in the wing root (2), one end of the transmission connecting rod (8) is connected to the motor (7) for driving, and the other end is connected to the second wing rib (4) in the direction close to the wing root (2), and the motor (7) is used to drive the scissors-type telescopic mechanism to telescopic deformation through the transmission connecting rod (8).

7. The telescopic morphing wing according to claim 6, characterized in that: The transmission connecting rod (8) includes a first connecting rod (81), a second connecting rod (82), a third connecting rod (83) and a shaft rod (84), one end of the first connecting rod (81) is drivingly connected to the output shaft of the motor (7), the other end of the first connecting rod (81) is hinged to one end of the second connecting rod (82), the other end of the second connecting rod (82) is rotationally connected to the shaft rod (84), one end of the third connecting rod (83) is rotationally connected to the shaft rod (84), the other end of the third connecting rod (83) is connected to the second wing rib (4), and the second connecting rod (82) and the third connecting rod (83) are respectively arranged perpendicular to the shaft rod (84).

8. The telescopic morphing wing according to claim 7, characterized in that: The invention also includes a guide structure (9), wherein the guide structure (9) includes a square block (91) and a connecting rod (93) connected to the square block (91), and the guide structure (9) is connected to the inner side wall of the wing root (2) in the direction of the deformed wing section through the connecting rod (93), and a third through hole (21) is provided on the side wall of the wing root (2) in the direction of the deformed wing section, and a through cavity structure (92) is provided on the square block (91), and the third connecting rod (83) passes through the third through hole (21) and is slidably connected in the cavity structure (92).

9. An aircraft, characterized in that: The invention comprises the telescopic and deformable wing according to any one of claims 1 to 8.

Citation Information

Patent Citations

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    CA2722229A1

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    CN108482645A