Smooth continuous repeatable telescoping and bending multi-dimensional morphing wing and working method

Abstract

The present application relates to the technical field of aerospace equipment, in particular to a smooth continuous repeatable telescopic variable-camber multi-dimensional deformation wing and a working method thereof, the deformation wing comprising: a fixed wing and a telescopic wing, the telescopic wing being arranged inside the fixed wing and being provided with a driving assembly on the fixed wing, the driving assembly being connected with the telescopic wing; a variable-camber wing, the root of the variable-camber wing being connected with the telescopic wing, the variable-camber wing comprising a variable-camber wing skin, a crank slider mechanism, a knuckle bionic mechanism, a variable-camber transmission mechanism and a passive slider; the variable-camber wing skin is connected with the telescopic wing, the variable-camber transmission mechanism is arranged in the telescopic wing and is connected with the driving assembly, and the crank slider mechanism is arranged in the variable-camber wing skin. The rigidity and load-carrying capacity of the deformation wing are improved; compared with another form of folding wing of out-of-plane deformation, the problem that the folding wing surface cannot be smoothly and continuously variable-cambered is avoided.

Description

Technical Field

[0001] This invention relates to the field of aerospace equipment technology, specifically to a smooth, continuous, repeatable, telescopic, and bending multidimensional deformable wing and its working method. Background Technology

[0002] With the continuous development of aerospace technology, the requirements for airspace and speed range of military combat aircraft are increasing, and fixed-wing aircraft can no longer meet the comprehensive performance requirements in complex and ever-changing environments. Therefore, there is an urgent need for aircraft that can adaptively adapt to flight environments and combat missions.

[0003] Multidimensional morphing technology for airfoils is key to achieving large airspace and wide speed range for aircraft. Research on highly controllable, highly adaptable, and multidimensional morphing wings based on combinations of single-dimensional morphing forms is an inevitable trend in future aircraft development. Therefore, research on multidimensional morphing wings is crucial. In the research on multidimensional morphing wings that combine telescoping, variable camber in-plane deformation, and out-of-plane deformation, telescoping, as a traditional mechanism, is basically mature, while variable camber wings are still in the research stage, especially for spanwise variable camber wings. Traditional engineering projects mostly use folding wings as the morphing scheme, but the aerodynamic shape of morphing wings can be greatly affected under high-speed flight conditions. Smooth, continuous variable camber replacing folding deformation forms has the advantage of better improving lift-to-drag ratio, reducing wake vortices, and improving stability. Therefore, it is necessary to study it.

[0004] Currently, high-stiffness smooth continuous variable bending technology is not yet mature, and the limitations of large deformation and high load-bearing skin materials still exist. Flexible skin is the preferred option among current variable bending schemes. However, this scheme has problems such as low stiffness, poor load-bearing capacity and temperature difference resistance. Therefore, it is crucial to break through the research bottleneck of rigid variable bending. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problems of low stiffness, poor load-bearing capacity and temperature difference resistance of the high stiffness smooth continuous variable camber wings in the prior art, thereby providing a smooth continuous repeatable telescopic variable camber multidimensional deformable wing and its working method.

[0006] To address the aforementioned technical problems, this invention provides a smooth, continuous, repeatable, telescopic, and bendable multidimensional deformable wing, comprising: a fixed wing and a telescopic wing, wherein the telescopic wing is disposed inside the fixed wing and a drive assembly is provided on the fixed wing, the drive assembly being connected to the telescopic wing; and a bendable wing, the root of which is connected to the telescopic wing, the bendable wing including a bendable wing skin, a crank-slider mechanism, a knuckle-inspired bionic mechanism, a bendable transmission mechanism, and a passive slider; the bendable wing skin is connected to the telescopic wing, the bendable transmission mechanism is disposed within the telescopic wing and is connected to the drive assembly, the crank-slider mechanism is disposed within the bendable wing skin and is connected to the bendable transmission mechanism, the knuckle-inspired bionic mechanism is connected to the crank-slider mechanism, and the passive slider is connected to the knuckle-inspired bionic mechanism and the bendable wing skin.

[0007] Furthermore, the variable curvature transmission mechanism includes a spline shaft and an internal spline screw. The spline shaft is connected to the drive assembly, the internal spline screw is sleeved on the spline shaft, one end of the spline shaft is mounted on a spline shaft fixing member, and the spline shaft fixing member is connected to a fixed wing. The other end of the spline shaft is connected to a crank-slider mechanism.

[0008] Furthermore, the crank-slider mechanism includes a crank, a connecting rod, a transmission block, and a transmission block mounting base; the transmission block mounting base is disposed on the telescopic wing, the transmission block is located inside the transmission block mounting base and sleeved on the internal spline screw, one end of the connecting rod is connected to the transmission block, and the other end is connected to the crank, and the crank is connected to the knuckle bionic mechanism.

[0009] Furthermore, the side wall of the transmission block mounting base is provided with an elongated through hole, and the connecting rod is provided with a connecting block, which is inserted into the elongated through hole.

[0010] Furthermore, the knuckle bionic mechanism includes a first main rod, a second main rod, a third main rod, a fixed base, a first auxiliary rod, and a second auxiliary rod; one end of the fixed base is connected to the transmission block mounting base, and the other end is connected to the first main rod and the crank; the first main rod, the second main rod, and the third main rod are connected in series; the first auxiliary rod and the second auxiliary rod are respectively cross-installed between the first main rod, the second main rod, and the third main rod; a rotating shaft is provided at the connection of the first main rod, the second main rod, and the third main rod, and the passive slider is sleeved on the rotating shaft.

[0011] Furthermore, the variable camber wing skin includes a double-layer carbon fiber skin with notches and three annular beams, the annular beams being spaced apart on the double-layer carbon fiber skin, and the annular beams being provided with passive sliding grooves for mounting the passive sliders.

[0012] Furthermore, the fixed wing includes a fixed wing skin and a guide rail fixing flange; the drive assembly and the guide rail fixing flange are disposed on the fixed wing skin, and the guide rail fixing flange is connected to the fuselage.

[0013] Furthermore, the drive assembly includes a telescopic wing drive motor, a variable camber wing drive motor, and a motor mounting base. The motor mounting base is located at the root of the fixed wing. The telescopic wing drive motor and the variable camber wing drive motor are connected to the motor mounting base, and the variable camber wing drive motor is connected to a spline shaft.

[0014] Further, the telescopic wing includes: a telescopic wing skin, a telescopic transmission mechanism, a ball bearing slider, a dovetail groove guide rail, and a guide rail support frame; the guide rail fixing flange is located on one side of the fixed wing skin, the guide rail support frame is connected to the guide rail fixing flange, the dovetail groove guide rail is located on both sides of the guide rail support frame, the ball bearing slider is mounted on the dovetail groove guide rail, and the telescopic wing skin is connected to the ball bearing slider; the telescopic transmission mechanism is located in the middle of the telescopic wing skin and is connected to the telescopic wing drive motor; the telescopic transmission mechanism includes a lead screw and a lead screw nut; one end of the lead screw is mounted on a lead screw fixing member via a bearing, the lead screw fixing member is located on one side of the fixed wing skin, the other end of the lead screw cooperates with the lead screw nut, the lead screw nut is mounted on a lead screw nut mounting seat, and the lead screw nut mounting seat is located in the middle of the telescopic wing skin.

[0015] The present invention also provides a working method for the aforementioned smooth, continuous, repeatable, telescopic, and bendable multidimensional deformable wing, comprising: a telescopic wing arranged inside a fixed wing, the telescopic wing having a 30° sweep angle and being able to extend and retract along the sweep direction without gaps during deformation; the root of the bendable wing being fixedly connected to the telescopic wing; after the telescopic wing is fully extended, the bendable wing can extend smoothly and continuously in the long normal direction with varying bend; in the fully retracted state, the bendable wing is in a horizontal state; the telescopic wing and the bendable wing are driven separately to achieve different airfoil changes;

[0016] The telescopic wing is arranged inside the fixed wing. The telescopic wing has a 30° sweep angle and can extend and retract along the sweep direction without gaps during deformation. The root of the variable camber wing is fixed to the telescopic wing. After the telescopic wing is fully extended, the drive assembly drives the variable camber transmission mechanism, crank-slider mechanism, and finger-knuckle bionic mechanism to move, so that the skin of the variable camber wing can extend smoothly and continuously in the long normal direction. In the fully retracted state, the variable camber wing is in a horizontal state. The telescopic wing and the variable camber wing are driven separately to achieve different airfoil changes.

[0017] The technical solution of this invention has the following advantages:

[0018] The smooth, continuous, repeatable, telescopic, and bendable multidimensional deformable wing provided by this invention, compared with other multidimensional deformable wing schemes, employs a mature deformation strategy in the telescopic part, ensuring the reliability of deformation. The bend portion provides a scheme for out-of-plane deformation along the extended normal direction. In contrast, most existing deformation schemes primarily rely on flexible deformation of the leading edge, trailing edge, and flaps, with unclosed leading and trailing edge skins, making them unable to withstand aerodynamic and thermal loads. Furthermore, research on rigid deformation along the wingspan normal direction is limited. This smooth, continuous, repeatable, telescopic, and bendable multidimensional deformable wing is entirely a rigid structure, improving the stiffness and load-bearing capacity of the deformable wing. Compared to another form of out-of-plane deformation, the folding wing, it avoids the problem of the folding wing surface not being able to smoothly and continuously change its bend.

[0019] The transmission mechanism of the variable curvature wing adopts an external drive motor, which reduces the impact of temperature effects. The use of a passive slider introduces local degrees of freedom and solves the extrusion misalignment problem caused by the variable curvature of the rigid skin.

[0020] This smooth, continuous, repeatable, retractable, flexural, multidimensional deformable wing possesses both in-plane and out-of-plane deformability capabilities. Through its retractable function, the wing area and aspect ratio can be altered, changing the aircraft's aerodynamic layout and characteristics. The wing span can be changed at any time according to mission and environmental requirements, selectively improving endurance and agility, thus enhancing the ability of a single aircraft to perform missions. The flexural function can control aerodynamic span, reduce induced drag, improve stall characteristics, and replace traditional control surfaces, thereby improving the aircraft's agility and flight characteristics.

[0021] The summary section is provided to present the chosen concepts in a simplified form, which will be further described in the detailed description below. The summary section is not intended to identify essential or necessary features of this disclosure, nor is it intended to limit the scope of this disclosure. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the deformable wing in the extended state described in this invention;

[0024] Figure 2 This is a schematic diagram of the telescopic wing described in this invention;

[0025] Figure 3This is a schematic diagram of the dovetail groove guide rail described in this invention;

[0026] Figure 4 This is a schematic diagram of the variable camber airfoil described in this invention;

[0027] Figure 5 This is a schematic diagram of the structure of the knuckle bionic mechanism described in this invention;

[0028] Figure 6 This is a perspective view of the variable camber airfoil described in this invention;

[0029] Figure 7 This is a schematic diagram of the retracted state of the variable camber wing described in this invention;

[0030] Figure 8 This is a schematic diagram of the structure of the passive slider and the passive groove as described in this invention;

[0031] Figure 9 This is a perspective view of the knuckle bionic mechanism described in this invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Fixed wing; 11. Fixed wing skin; 12. Drive assembly; 121. Telescopic wing drive motor; 122. Variable camber wing drive motor; 123. Motor mounting base; 13. Guide rail fixing flange;

[0034] 2. Telescopic wing; 21. Telescopic wing skin; 22. Telescopic transmission mechanism; 221. Lead screw; 222. Lead screw nut; 23. Ball bearing slider; 24. Dovetail groove guide rail; 25. Lead screw nut mounting base; 26. Lead screw fixing component; 27. Guide rail bearing frame;

[0035] 3. Variable camber wing; 31. Variable camber wing skin; 311. Double-layer carbon fiber skin; 312. Three ring beams; 313. Passive slide groove; 32. Crank-slider mechanism; 321. Crank; 322. Connecting rod; 323. Transmission block; 324. Transmission block mounting base; 3241. Long through hole; 3242. Connecting block; 33. Finger-knuckle bionic mechanism; 331. First main rod; 332. Second main rod; 333. Third main rod; 334. Fixed base; 335. First auxiliary rod; 336. Second auxiliary rod; 34. Variable camber transmission mechanism; 341. Splined shaft; 342. Internal splined lead screw; 35. Splined shaft fixing component; 36. Passive slider; 361. Upper passive slider; 362. Lower passive slider; 37. Rotating shaft. Detailed Implementation

[0036] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure. Therefore, the drawings and description are to be considered exemplary in nature and not restrictive.

[0037] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or connections that allow for communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0039] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The following disclosure provides numerous different embodiments or examples for implementing various structures of this disclosure. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this disclosure. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this disclosure, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0041] The preferred embodiments of this disclosure are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0042] Please see Figures 1 to 9 As shown, the present invention provides a smooth, continuous, repeatable, telescopic, and bendable multidimensional deformable wing, comprising: a fixed wing 1 and a telescopic wing 2, wherein the telescopic wing 2 is disposed inside the fixed wing 1, and a drive assembly 12 is provided on the fixed wing 1, the drive assembly 12 being connected to the telescopic wing 2; and a bendable wing 3, the root of which is connected to the telescopic wing 2, the bendable wing 3 comprising a bendable wing skin 31, a crank-slider mechanism 32, a knuckle bionic mechanism 33, and a bendable transmission mechanism 34. Passive slider 36; the variable camber wing skin 31 is connected to the telescopic wing 2, the variable camber transmission mechanism 34 is disposed inside the telescopic wing 2 and is connected to the drive assembly 12, the crank slider mechanism 32 is disposed inside the variable camber wing skin 31 and is connected to the variable camber transmission mechanism 34, the knuckle bionic mechanism 33 is connected to the crank slider mechanism 32, and the passive slider 36 is connected to the knuckle bionic mechanism 33 and the variable camber wing skin 31.

[0043] The telescopic wing 2 is installed inside the fixed wing 1, that is, the fixed wing 1 provides an installation position for the telescopic wing 2; at the same time, a drive assembly 12 is provided on the fixed wing 1, which can be connected to the telescopic wing 2 and the variable curvature wing 3, that is, it drives the telescopic wing 2 to telescopically move relative to the fixed wing 1, and the variable curvature wing 3 to move with a variable curvature relative to the fixed wing 1.

[0044] The variable camber wing skin 31 is connected to the telescopic wing 2, thereby connecting the variable camber wing 3 and the telescopic wing 2. The variable camber transmission mechanism 34 is located inside the telescopic wing 2. The power output from the drive assembly 12 can be transmitted to the crank-slider mechanism 32 via the variable camber transmission mechanism 34, and then transmitted to the knuckle bionic mechanism 33 via the crank-slider mechanism 32, so that the variable camber wing skin 31 undergoes surface curvature change, that is, it realizes both in-plane and out-of-plane deformation.

[0045] Specifically, the telescopic wing 2 has a 30° sweep angle and can extend and retract along the sweep direction without gaps during deformation; the root of the variable camber wing 3 is fixed to the telescopic wing 2. After the telescopic wing 2 is fully extended, the variable camber wing 3 can extend smoothly and continuously with variable camber in the long normal direction. In the fully retracted state, the variable camber wing 3 is in a horizontal state. The telescopic wing 2 and the variable camber wing 3 are driven separately to achieve different airfoil changes.

[0046] In some optional embodiments, the variable curvature transmission mechanism 34 includes a spline shaft 341 and an internal spline screw 342. The spline shaft 341 is connected to the drive assembly 12, the internal spline screw 342 is sleeved on the spline shaft 341, one end of the spline shaft 341 is mounted on a spline shaft fixing member 35, and the spline shaft fixing member 35 is connected to the fixed wing 1. The other end of the spline shaft 341 is connected to the crank-slider mechanism 32.

[0047] The spline shaft 341 is mounted on the spline shaft fixing member 35, which provides the mounting position for the spline shaft 341. Since the internal spline screw 342 is sleeved on the spline shaft 341, when the drive assembly 12 drives the spline shaft 341 to rotate, it also drives the internal spline screw 342 to rotate, thereby driving the crank-slider mechanism 32 to perform corresponding movements.

[0048] Specifically, the crank-slider mechanism 32 includes a crank 321, a connecting rod 322, a transmission block 323, and a transmission block mounting base 324; the transmission block mounting base 324 is disposed on the telescopic wing 2, the transmission block 323 is located inside the transmission block mounting base 324 and is sleeved on the internal spline screw 342, one end of the connecting rod 322 is connected to the transmission block 323, and the other end is connected to the crank 321, and the crank 321 is connected to the knuckle bionic mechanism 33.

[0049] The transmission block mounting seat 324 is installed on the telescopic wing 2, which provides an installation position for the transmission block mounting seat 324. The transmission block 323 can be placed inside the transmission block mounting seat 324 and sleeved on the inner spline screw 342, so that the transmission block 323 can move relative to each other, thereby driving the connecting rod 322 and the crank 321 to move.

[0050] Since the transmission block mounting base 324 has an elongated through hole 3241 on its side wall, and the connecting rod 322 has a connecting block 3242, the connecting block 3242 is inserted into the elongated through hole 3241, that is, the connection with the connecting rod 322 is achieved through the connecting block 3242. Furthermore, the connecting block 3242 can slide inside the elongated through hole 3241, and the length of the elongated through hole 3241 is greater than or equal to the moving length of the connecting rod 322.

[0051] In this embodiment, the knuckle bionic mechanism 33 includes a first main rod 331, a second main rod 332, a third main rod 333, a fixed base 334, a first auxiliary rod 335, and a second auxiliary rod 336. One end of the fixed base 334 is connected to the transmission block mounting base 324, and the other end is connected to the first main rod 331 and the crank 321. The first main rod 331, the second main rod 332, and the third main rod 333 are connected in series. The first auxiliary rod 335 and the second auxiliary rod 336 are respectively cross-installed between the first main rod 331, the second main rod 332, and the third main rod 333. A rotating shaft 37 is provided at the connection of the first main rod 331, the second main rod 332, and the third main rod 333, and the passive slider 36 is sleeved on the rotating shaft 37.

[0052] The knuckle bionic mechanism 33 is connected to the transmission block mounting base 324 via the fixed base 334, thereby connecting the knuckle bionic mechanism 33 and the crank-slider mechanism 32. The fixed base 334 is connected to the first main rod 331, and the crank 321 is fixedly connected to the first main rod 331 to introduce the driving torque of the knuckle bionic mechanism 33. The first main rod 331, the second main rod 332, and the third main rod 333 are connected in series, thereby connecting the first main rod 331, the second main rod 332, and the third main rod 333. Furthermore, the first auxiliary rod 335 and the second auxiliary rod 336 are crosswise arranged on the first main rod 331 and the second main rod 332, so that the fixed base 334, the first main rod 331, the second main rod 332, the third main rod 333, the first auxiliary rod 335, and the second auxiliary rod 336 form a linkage mechanism to sequentially transmit the force from the drive assembly 12. Meanwhile, the rotating shafts 37 provided on the first main rod 331, the second main rod 332, and the third main rod 333 facilitate the installation of the passive slider 36 on the rotating shafts 37, thereby realizing the connection between the passive slider 36 and the variable camber wing skin 31.

[0053] Specifically, the variable camber wing skin 31 includes a double-layer carbon fiber skin 311 with a notch and three annular beams 312. The annular beams 312 are spaced apart on the double-layer carbon fiber skin 311, and the annular beams 312 are provided with passive sliding grooves 313 for installing the passive slider 36.

[0054] Among them, there are two variable camber wing skins 31, which are symmetrically arranged. The double-layer carbon fiber skin 311 is composed of inner and outer skins. Both inner and outer skins have notches at the front and rear edges. By interlacing the skin positions, the defects are compensated while retaining the bendable feature of the variable camber wing skin 31. The double-layer carbon fiber skin 311 is connected to the annular beam 312 by rivets.

[0055] Three annular beams 312 are spaced apart on the inner wall of the double-layer carbon fiber skin 311, and the notches on the double-layer carbon fiber skin 311 facilitate bending of the double-layer carbon fiber skin 311, thereby adjusting the curvature of the double-layer carbon fiber skin 311; by installing the passive slider 36 in the passive groove 313 of the annular beam 312, the variable curvature wing skin 31 can be deformed by the knuckle bionic mechanism 33.

[0056] The passive slider 36 includes an upper passive slider 361 and a lower passive slider 362, which are respectively connected to two variable camber wing skins 31.

[0057] In this embodiment, the fixed wing 1 includes a fixed wing skin 11 and a guide rail fixing flange 13; the drive assembly 12 and the guide rail fixing flange 13 are disposed on the fixed wing skin 11, and the guide rail fixing flange 13 is connected to the fuselage.

[0058] There are two guide rail fixing flanges 13, which are symmetrically arranged at both ends of the fixed wing skin 11. The guide rail fixing flanges 13 are used to connect the deformable wing to the fuselage. The drive assembly 12 is arranged between the two guide rail fixing flanges 13.

[0059] Specifically, the drive assembly 12 includes a telescopic wing drive motor 121, a variable camber wing drive motor 122, and a motor mounting base 123. The motor mounting base 123 is located at the root of the fixed wing 1. The telescopic wing drive motor 121 and the variable camber wing drive motor 122 are connected to the motor mounting base 123. The variable camber wing drive motor 122 is connected to the spline shaft 341.

[0060] The device includes one telescopic wing drive motor 121 and two variable camber wing drive motors 122, which are located on both sides of the telescopic wing drive motor 121. The motor mounting base 123 provides mounting positions for the telescopic wing drive motor 121 and the variable camber wing drive motor 122, ensuring the stability of their installation.

[0061] In this embodiment, the telescopic wing 2 includes: a telescopic wing skin 21, a telescopic transmission mechanism 22, a ball block slider 23, a dovetail groove guide rail 24, and a guide rail support frame 27;

[0062] The guide rail fixing flange 13 is located on one side of the fixed wing skin 11. The guide rail bearing frame 27 is connected to the guide rail fixing flange 13. The dovetail groove guide rail 24 is located on both sides of the guide rail bearing frame 27. The ball block slider 23 is installed on the dovetail groove guide rail 24. The telescopic wing skin 21 is connected to the ball block slider 23.

[0063] The telescopic transmission mechanism 22 is located in the middle of the telescopic wing skin 21, and the telescopic transmission mechanism 22 is connected to the telescopic wing drive motor 121.

[0064] The fixed wing skin 11 is divided into upper and lower parts and connected by screws. The guide rail fixing flange 13 is embedded in the root of the fixed wing 1 and is used to connect the deformable wing to the fuselage. Since the guide rail support frame 27 is I-shaped, the dovetail groove guide rail 24 is provided on the upper and lower sides of the guide rail support frame 27. The ball slider 23 is then installed on the dovetail groove guide rail 24, thereby realizing the sliding connection between the upper and lower telescopic wing skin 21 and the ball slider 23. With the cooperation of the telescopic transmission mechanism 22, it is convenient for the telescopic wing skin 21 to perform telescopic movement relative to the fixed wing 1.

[0065] The telescopic transmission mechanism 22 includes a lead screw 221 and a lead screw nut 222. One end of the lead screw 221 is mounted on a lead screw fixing member 26 via a bearing. The lead screw fixing member 26 is located on one side of the fixed wing skin 11. The other end of the lead screw 221 cooperates with the lead screw nut 222. The lead screw nut 222 is mounted on the lead screw nut mounting seat 25. The lead screw nut mounting seat 25 is located in the middle of the telescopic wing skin 21.

[0066] The variable camber wing drive motor 122 is connected to the motor mounting base 123, the spline shaft fixing part 35, the variable camber transmission mechanism 34, the crank slider mechanism 32, and the knuckle bionic mechanism 33.

[0067] The telescopic wing drive motor 121 is connected to the motor mounting base 123, the lead screw fixing part 26, and the telescopic transmission mechanism 22.

[0068] This invention also provides a working method for the smooth, continuous, repeatable, telescopic, and bendable multidimensional deformable wing described above, comprising: a telescopic wing 2 arranged inside a fixed wing 1, the telescopic wing 2 having a 30° sweep angle, extending and retracting along the sweep direction without gaps during deformation; a bendable wing 3 fixedly connected at its root to the telescopic wing 2; after the telescopic wing 2 is fully extended, the drive assembly 12 drives the bendable transmission mechanism 34, the crank-slider mechanism 32, and the knuckle-inspired mechanism 33 to move, so that the bendable wing skin 31 can extend smoothly and continuously in the long normal direction; in the fully retracted state, the bendable wing 3 is in a horizontal state, and the telescopic wing 2 and the bendable wing 3 are driven separately to achieve different airfoil changes.

[0069] The specific working method of this smooth, continuous, repeatable, extensible, flexible, and multidimensional deformable wing:

[0070] When the telescopic wing 2 needs to extend, the forward motion of the telescopic wing drive motor 121 drives the lead screw 221 to rotate, thereby moving the lead screw nut 222 and the lead screw nut mounting seat 25. At the same time, the ball block slider 23 cooperates with the dovetail groove guide rail 24 to drive the telescopic wing skin 21 to extend. When the telescopic wing 2 needs to retract, the reverse motion of the telescopic wing drive motor 121 is sufficient.

[0071] When the variable camber wing 3 needs to deform, the variable camber wing drive motor 122 drives the spline shaft 341 to rotate, which in turn drives the inner spline screw 342 to rotate, so that the transmission block mounting seat 324 can move on the spline shaft 341. The transmission block 323 drives the connecting rod 322 to slide in the elongated through hole 3241, which in turn drives the crank 321 to rotate, thereby driving the first main rod 331 to move. The first main rod 331 drives the second main rod 332, the third main rod 333, the first auxiliary rod 335 and the second auxiliary rod 336 in sequence, and transmits the force from the variable camber wing drive motor 122 to the third main rod 333 in sequence. The bending deformation of the variable camber wing skin is achieved by using the passive slider 36 on the rotating shaft 37.

[0072] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A smooth, continuous, repeatable, telescopic, and bendable multidimensional deformable wing, characterized in that, include: A fixed wing (1) and a telescopic wing (2), the telescopic wing (2) being located inside the fixed wing (1), and a drive assembly (12) being provided on the fixed wing (1), the drive assembly (12) being connected to the telescopic wing (2); The variable camber wing (3) is connected to the telescopic wing (2) at its root. The variable camber wing (3) includes a variable camber wing skin (31), a crank-slider mechanism (32), a knuckle bionic mechanism (33), a variable camber transmission mechanism (34), and a passive slider (36). The variable camber wing skin (31) is connected to the telescopic wing (2), the variable camber transmission mechanism (34) is located inside the telescopic wing (2), and the variable camber transmission mechanism (34) is connected to the drive assembly (12), the crank-slider mechanism (32) is located inside the variable camber wing skin (31), and the crank-slider mechanism (32) is connected to the variable camber transmission mechanism (34), the knuckle bionic mechanism (33) is connected to the crank-slider mechanism (32), and the passive slider (36) is connected to the knuckle bionic mechanism (33) and the variable camber wing skin (31); The telescopic wing (2) is arranged inside the fixed wing (1). The telescopic wing (2) moves with a 30° sweep angle and can extend and retract along the sweep direction without gaps during deformation. The root of the variable camber wing (3) is fixed to the telescopic wing (2). After the telescopic wing (2) is fully extended, the drive assembly (12) drives the variable camber transmission mechanism (34), the crank slider mechanism (32), and the knuckle bionic mechanism (33) to move, so that the variable camber wing skin (31) can extend smoothly and continuously in the long normal direction. In the fully retracted state, the variable camber wing (3) is in a horizontal state. The telescopic wing (2) and the variable camber wing (3) are driven separately to achieve different airfoil changes.

2. The smooth, continuous, repeatable, telescopic, and bending multidimensional deformable wing according to claim 1, characterized in that, The variable curvature transmission mechanism (34) includes a spline shaft (341) and an inner spline screw (342). The spline shaft (341) is connected to the drive assembly (12). The inner spline screw (342) is sleeved on the spline shaft (341). One end of the spline shaft (341) is mounted on the spline shaft fixing member (35), and the spline shaft fixing member (35) is connected to the fixed wing (1). The other end of the spline shaft (341) is connected to the crank-slider mechanism (32).

3. The smooth, continuous, repeatable, telescopic, and bending multidimensional deformable wing according to claim 2, characterized in that, The crank-slider mechanism (32) includes a crank (321), a connecting rod (322), a transmission block (323), and a transmission block mounting seat (324). The transmission block mounting seat (324) is located on the telescopic wing (2). The transmission block (323) is located inside the transmission block mounting seat (324) and is sleeved on the inner spline screw (342). One end of the connecting rod (322) is connected to the transmission block (323), and the other end is connected to the crank (321). The crank (321) is connected to the knuckle bionic mechanism (33).

4. The smooth, continuous, repeatable, telescopic, and bending multidimensional deformable wing according to claim 3, characterized in that, The transmission block mounting base (324) has a long through hole (3241) on its side wall, and a connecting block (3242) is provided on the connecting rod (322). The connecting block (3241) is inserted into the long through hole (3241).

5. The smooth, continuous, repeatable, telescopic, bending, multidimensional deformable wing according to claim 3 or 4, characterized in that, The knuckle bionic mechanism (33) includes a first main rod (331), a second main rod (332), a third main rod (333), a fixed seat (334), a first auxiliary rod (335), and a second auxiliary rod (336). One end of the fixed seat (334) is connected to the transmission block mounting seat (324), and the other end is connected to the first main rod (331) and the crank (321). The first main rod (331), the second main rod (332), and the third main rod (333) are connected in series. The first auxiliary rod (335) and the second auxiliary rod (336) are respectively cross-installed between the first main rod (331), the second main rod (332), and the third main rod (333). A rotating shaft (37) is provided at the connection of the first main rod (331), the second main rod (332), and the third main rod (333). The passive slider (36) is sleeved on the rotating shaft (37).

6. The smooth, continuous, repeatable, telescopic, and bending multidimensional deformable wing according to claim 5, characterized in that, The variable camber wing skin (31) includes a double-layer carbon fiber skin (311) with a notch and three annular beams (312). The annular beams (312) are spaced apart on the double-layer carbon fiber skin (311), and the annular beams (312) are provided with passive grooves (313) for installing passive sliders (36).

7. The smooth, continuous, repeatable, telescopic, and bending multidimensional deformable wing according to claim 6, characterized in that, The fixed wing (1) includes a fixed wing skin (11) and a guide rail fixing flange (13); the drive assembly (12) and the guide rail fixing flange (13) are located on the fixed wing skin (11), and the guide rail fixing flange (13) is connected to the fuselage.

8. The smooth, continuous, repeatable, telescopic, and bending multidimensional deformable wing according to claim 7, characterized in that, The drive assembly (12) includes a telescopic wing drive motor (121), a variable camber wing drive motor (122), and a motor mounting base (123). The motor mounting base (123) is located at the root of the fixed wing (1). The telescopic wing drive motor (121) and the variable camber wing drive motor (122) are connected to the motor mounting base (123), and the variable camber wing drive motor (122) is connected to the spline shaft (341).

9. The smooth, continuous, repeatable, telescopic, and bending multidimensional deformable wing according to claim 8, characterized in that, The telescopic wing (2) includes: telescopic wing skin (21), telescopic transmission mechanism (22), ball block (23), dovetail groove guide rail (24), and guide rail support frame (27). The guide rail fixing flange (13) is located on one side of the fixed wing skin (11), the guide rail bearing frame (27) is connected to the guide rail fixing flange (13), the dovetail groove guide rail (24) is located on both sides of the guide rail bearing frame (27), the ball slider (23) is installed on the dovetail groove guide rail (24), and the telescopic wing skin (21) is connected to the ball slider (23). The telescopic transmission mechanism (22) is located in the middle of the telescopic wing skin (21), and the telescopic transmission mechanism (22) is connected to the telescopic wing drive motor (121); The telescopic transmission mechanism (22) includes a lead screw (221) and a lead nut (222); One end of the lead screw (221) is mounted on the lead screw fixing part (26) via a bearing. The lead screw fixing part (26) is located on one side of the fixed wing skin (11). The other end of the lead screw (221) is engaged with the lead screw nut (222). The lead screw nut (222) is mounted on the lead screw nut mounting seat (25). The lead screw nut mounting seat (25) is located in the middle of the telescopic wing skin (21).

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