Smooth, continuous and repeatable telescopic bending multi-dimensional deformation wing and working method

Abstract

The invention relates to the technical field of aerospace equipment, in particular to a smooth, continuous and repeatable telescopic bending multi-dimensional deformation wing and a working method. The deformable wing comprises a fixed wing and a telescopic wing, the telescopic wing is arranged in the fixed wing, a driving part assembly is arranged on the fixed wing, and the driving part assembly is connected with the telescopic wing; the root of the variable-camber wing is connected with the telescopic wing, and the variable-camber wing comprises a variable-camber wing skin, a crank sliding block mechanism, a knuckle bionic mechanism, a variable-camber transmission mechanism and a driven sliding block; the variable-camber wing skin is connected with the telescopic wing, the variable-camber transmission mechanism is arranged in the telescopic wing and connected with the driving part assembly, and the crank sliding block mechanism is arranged in the variable-camber wing skin. The rigidity and the bearing capacity of the deformation wing are improved; and compared with the other form of folding wing with out-of-plane deformation, the problem that the folding wing surface cannot smoothly and continuously change the camber is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of aerospace equipment, and in particular to a smooth, continuously and repeatedly retractable and bendable multi-dimensional deformation wing and a working method thereof. Background Art

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

[0003] The multi-dimensional deformation technology of wings is the key to achieving large airspace and wide speed range of aircraft. The research on highly controllable, highly adaptable and multi-dimensional deformation wings based on the combination of single-dimensional deformation forms is an inevitable trend in the development of future aircraft. Therefore, the research on multi-dimensional deformation wings is crucial. In the research on multi-dimensional deformation wings that combine telescopic, variable camber in-plane deformation and out-of-plane deformation, telescopic as a traditional mechanism has been basically mature, while variable camber wings are still in the research stage, especially for span-wise variable camber wings. There are few studies. The deformation schemes adopted in traditional engineering projects are mostly folding wings, but the aerodynamic shape of the deformation wing will be greatly affected under high-speed flight conditions. The advantage of smooth continuous variable camber replacing the folding deformation form is that it can better improve the lift-to-drag ratio, reduce wake vortices, and improve stability. Therefore, it is necessary to study it.

[0004] At present, the technology of high-rigidity smooth continuous variable curvature is not yet mature, and the limitations of large deformation and high-load-bearing skin materials still exist. Flexible skin is the preferred solution among the current variable curvature schemes. However, this solution has problems of low stiffness, poor load-bearing and temperature resistance. Therefore, it is crucial to break through the research bottleneck of rigid variable curvature. 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 resistance of high-rigidity, smooth and continuously variable-curvature wings in the prior art, thereby providing a smooth, continuously, repeatable, retractable and variable-curvature multi-dimensional deformable wing and a working method.

[0006] In order to solve the above technical problems, the present invention provides a smooth, continuous and repeatable retractable and bendable multi-dimensional deformable wing, comprising: a fixed wing and a telescopic wing, the telescopic wing is arranged inside the fixed wing, and a driving unit assembly is provided on the fixed wing, and the driving unit assembly is connected to the telescopic wing; a variable curvature wing, the root of the variable curvature wing is connected to the telescopic wing, and the variable curvature wing comprises a variable curvature wing skin, a crank slider mechanism, a finger joint bionic mechanism, a variable curvature transmission mechanism, and a passive slider; the variable curvature wing skin is connected to the telescopic wing, the variable curvature transmission mechanism is arranged in the telescopic wing, and the variable curvature transmission mechanism is connected to the driving unit assembly, the crank slider mechanism is arranged in the variable curvature wing skin, and the crank slider mechanism is connected to the variable curvature transmission mechanism, the finger joint bionic mechanism is connected to the crank slider mechanism, and the passive slider is connected to the finger joint bionic mechanism and the variable curvature 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 driving part assembly, the internal spline screw is sleeved on the spline shaft, one end of the spline shaft is installed on the spline shaft fixing part, and the spline shaft fixing part is connected to the fixed wing, and the other end of the spline shaft is connected to the crank slider mechanism.

[0008] Furthermore, the crank slider mechanism includes a crank, a connecting rod, a transmission block and a transmission block mounting seat; the transmission block mounting seat is arranged on the telescopic wing, the transmission block is located in the transmission block mounting seat and is 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, a long through hole is provided on the side wall of the transmission block mounting seat, and a connecting block is provided on the connecting rod, and the connecting block is inserted into the long through hole.

[0010] Furthermore, the finger joint bionic mechanism includes a first main rod, a second main rod, a third main rod, a fixed seat, a first secondary rod and a second secondary rod; one end of the fixed seat is connected to the transmission block mounting seat, 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 in sequence, and the first secondary rod and the second secondary rod are cross-installed between the first main rod, the second main rod and the third main rod respectively; 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 comprises a double-layer carbon fiber skin with a notch and three annular beams, the annular beams are arranged at intervals on the double-layer carbon fiber skin, and a passive slide groove is provided on the annular beam, and the passive slide groove is used to install the passive slider.

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

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

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

[0015] The present invention also provides a working method using the smooth, continuous, repeatable, retractable, variable-bend multi-dimensional deformation wing, comprising: the telescopic wing is arranged inside the fixed wing, the telescopic wing has a sweep angle of 30°, can be extended and retracted in the sweep direction, and has no gap during the deformation process; the root of the variable-bend wing is fixedly connected to the telescopic wing, and after the telescopic wing is fully extended, the variable-bend wing can be extended to a smoothly and continuously variable curvature in the long normal direction, and in the fully retracted state, the variable-bend wing is in a horizontal state, and the telescopic wing and the variable-bend wing are driven separately to achieve different wing shape changes;

[0016] The telescopic wing is arranged inside the fixed wing. The telescopic wing has a sweep angle of 30° and can be extended and retracted in the sweep direction without any gap during the deformation process. The root of the variable-camber wing is fixedly connected to the telescopic wing. After the telescopic wing is fully extended, the drive unit drives the variable-camber transmission mechanism, the crank slider mechanism, and the knuckle bionic mechanism to enable the variable-camber wing skin to extend in the long normal direction and change the curvature smoothly and continuously. In the fully retracted state, the variable-camber wing is in a horizontal state, and the telescopic wing and the variable-camber wing are driven separately to achieve different wing shape changes.

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

[0018] The smooth, continuously, repeatedly, retractable, and bendable multi-dimensional deformable wing provided by the present invention is, compared with other multi-dimensional deformation mechanism wing solutions, in which the telescopic part adopts a mature deformation strategy to ensure the reliability of deformation, and the camber part provides a solution for out-of-plane deformation in the direction of the extended normal line. Compared with the existing deformation solutions, most of which are mainly based on the flexible deformation of the leading edge, the trailing edge and the wing flap, and the leading and trailing edge skins are not closed and cannot withstand aerodynamic thermal loads, and there are fewer studies on rigid deformation in the normal direction of the wingspan, the smooth, continuously, repeatedly, retractable, and bendable multi-dimensional deformable wing is a rigid structure, which improves the rigidity and load-bearing capacity of the deformable wing; compared with another form of out-of-plane deformation, the folding wing, the problem that the folding wing surface cannot smoothly and continuously change its camber is avoided.

[0019] The transmission mechanism of the variable-curvature wing adopts an external drive motor to reduce the impact of temperature effects. The use of passive sliders introduces local degrees of freedom to solve the extrusion and dislocation problems caused by the variable curvature of the rigid skin.

[0020] This smooth, continuously and repeatedly retractable and bendable multi-dimensional deformable wing has both in-plane and out-of-plane deformation capabilities. Through the telescopic function of the device, the wing area and aspect ratio are changed, the aerodynamic layout and aerodynamic characteristics of the aircraft are changed, and the span of the wing can be changed at any time according to the mission and environmental requirements. The endurance and excitation performance can be improved according to the selection, which is beneficial to improving the ability of a single aircraft to perform tasks; the variable camber function can control the aerodynamic span, reduce induced drag, improve stall characteristics, and replace traditional control surfaces, thereby improving the agility and flight characteristics of the aircraft.

[0021] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the disclosure, nor is it intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0024] Figure 2 It is a structural schematic diagram of the telescopic wing of the present invention;

[0025] Figure 3It is a schematic diagram of the structure of the dovetail groove guide rail of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the variable camber wing of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the finger joint bionic mechanism of the present invention;

[0028] Figure 6 is a three-dimensional diagram of the variable camber wing of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the variable camber wing of the present invention in a retracted state;

[0030] Figure 8 It is a schematic diagram of the structure of the passive sliding block and the passive sliding groove according to the present invention;

[0031] Fig. 9 It is a stereoscopic diagram of the finger joint bionic mechanism described in the present invention.

[0032] Description of reference numerals:

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

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

[0035] 3. Variable-camber wing; 31. Variable-camber wing skin; 311. Double-layer carbon fiber skin; 312. Three annular beams; 313. Passive slide; 32. Crank slider mechanism; 321. Crank; 322. Connecting rod; 323. Transmission block; 324. Transmission block mounting seat; 3241. Long through hole; 3242. Connecting block; 33. Finger joint bionic mechanism; 331. First main rod; 332. Second main rod; 333. Third main rod; 334. Fixed seat; 335. First secondary rod; 336. Second secondary rod; 34. Variable-camber transmission mechanism; 341. Spline shaft; 342. Internal spline screw; 35. Spline shaft fixing piece; 36. Passive slider; 361. Upper passive slider; 362. Lower passive slider; 37. Rotating shaft. DETAILED DESCRIPTION

[0036] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0037] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present disclosure 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 operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0038] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0039] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0041] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0042] See also Figures 1 to 9 As shown, the present invention provides a smooth, continuous and repeatable telescopic variable-bend multi-dimensional deformation wing, comprising: a fixed wing 1 and a telescopic wing 2, wherein the telescopic wing 2 is arranged inside the fixed wing 1, and a driving component 12 is arranged on the fixed wing 1, and the driving component 12 is connected to the telescopic wing 2; a variable-bend wing 3, wherein the root of the variable-bend wing 3 is connected to the telescopic wing 2, and the variable-bend wing 3 comprises a variable-bend wing skin 31, a crank slider mechanism 32, a finger joint bionic mechanism 33, a variable-bend 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 arranged in the telescopic wing 2, and the variable camber transmission mechanism 34 is connected to the driving part assembly 12, the crank slider mechanism 32 is arranged in 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.

[0043] The telescopic wing 2 is arranged 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 driving component 12 is arranged on the fixed wing 1, and the driving component 12 can be connected with the telescopic wing 2 and the variable curvature wing 3, that is, drive the telescopic wing 2 to perform telescopic movement relative to the fixed wing 1, and the variable curvature wing 3 to perform variable curvature movement relative to the fixed wing 1.

[0044] Among them, the variable curvature wing skin 31 is connected to the telescopic wing 2, so as to realize the connection between the variable curvature wing 3 and the telescopic wing 2, and the variable curvature transmission mechanism 34 is arranged inside the telescopic wing 2. The variable curvature transmission mechanism 34 can be used to transmit the power output by the driving component 12 to the crank slider mechanism 32, and then transmit it to the finger joint bionic mechanism 33 through the crank slider mechanism 32, so that the variable curvature wing skin 31 undergoes a curved surface change, that is, both in-plane and out-of-plane deformations are realized.

[0045] Specifically, the telescopic wing 2 has a sweep angle of 30° and can be extended and retracted in the sweep direction without any gap during the deformation process. The root of the variable curvature wing 3 is fixedly connected to the telescopic wing 2. After the telescopic wing 2 is fully extended, the variable curvature wing 3 can extend in the long normal direction with a smooth and continuous variable curvature. In the fully retracted state, the variable curvature wing 3 is in a horizontal state. The telescopic wing 2 and the variable curvature wing 3 are driven separately to achieve changes in different wing shapes.

[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 driving unit assembly 12, the internal spline screw 342 is sleeved on the spline shaft 341, one end of the spline shaft 341 is installed on the spline shaft fixing member 35, and the spline shaft fixing member 35 is connected to the fixed wing 1, and 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, that is, the spline shaft fixing member 35 provides a mounting position for the spline shaft 341. Since the internal spline screw 342 is sleeved on the spline shaft 341, when the driving unit assembly 12 drives the spline shaft 341 to rotate, the internal spline screw 342 is also driven to rotate, thereby driving the crank slider mechanism 32 to perform corresponding movement.

[0048] Specifically, 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 arranged on the telescopic wing 2, the transmission block 323 is located in the transmission block mounting seat 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 finger joint bionic mechanism 33.

[0049] The transmission block mounting seat 324 is installed on the telescopic wing 2, which provides a mounting position for the transmission block mounting seat 324, and the transmission block 323 can be set in the transmission block mounting seat 324 and sleeved on the internal spline screw 342, so that the transmission block 323 can move relatively, thereby driving the connecting rod 322 and the crank 321 to move.

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

[0051] In this embodiment, the finger joint bionic mechanism 33 includes a first main rod 331, a second main rod 332, a third main rod 333, a fixing seat 334, a first sub-rod 335 and a second sub-rod 336; one end of the fixing 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 in sequence, and the first sub-rod 335 and the second sub-rod 336 are cross-installed between the first main rod 331, the second main rod 332 and the third main rod 333 respectively; a rotating shaft 37 is provided at the connection between 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 fixed seat 334 is connected to the transmission block mounting seat 324, so as to realize the connection between the finger joint bionic mechanism 33 and the crank slider mechanism 32, and the fixed seat 334 is connected to the first main rod 331, and the crank 321 is fixedly connected to the first main rod 331, so as to introduce the driving torque of the finger joint bionic mechanism 33, and the first main rod 331, the second main rod 332 and the third main rod 333 are connected in series in sequence, so as to realize the connection between the first main rod 331, the second main rod 332 and the third main rod 333, and the first sub-rod 335 and the second sub-rod 336 are cross-arranged on the first main rod 331 and the second main rod 332, so that the fixed seat 334, the first main rod 331, the second main rod 332, the third main rod 333, the first sub-rod 335 and the second sub-rod 336 form a connecting rod mechanism, which transmits the force from the driving part assembly 12 in sequence. At the same time, the rotating shaft 37 provided on the first main rod 331 , the second main rod 332 , and the third main rod 333 facilitates the installation of the passive slider 36 on the rotating shaft 37 , thereby realizing the connection between the passive slider 36 and the variable curvature 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 arranged at intervals on the double-layer carbon fiber skin 311 , and a passive slide groove 313 is provided on the annular beam 312 . The passive slide groove 313 is used to install the passive slider 36 .

[0054] Among them, the variable-curvature wing skin 31 has two, symmetrically arranged, double-layer carbon fiber skin 311 consists of an inner and outer layer of skin. The inner and outer layer of skin have gaps at the front and rear edges. The skin positions are staggered to make up for the defects while retaining the bendable characteristics of the variable-curvature wing skin 31. The double-layer carbon fiber skin 311 is connected to the annular beam 312 by rivets.

[0055] The three annular beams 312 are arranged at intervals on the inner wall surface of the double-layer carbon fiber skin 311, and the notches on the double-layer carbon fiber skin 311 facilitate the bending of the double-layer carbon fiber skin 311, thereby adjusting the variable curvature of the double-layer carbon fiber skin 311; the passive slider 36 is installed in the passive slide groove 313 of the annular beam 312, and the variable curvature wing skin 31 can be driven to deform through the knuckle bionic mechanism 33.

[0056] The passive slider 36 includes an upper passive slider 361 and a lower passive slider 362 , and the upper passive slider 361 and the lower passive slider 362 are respectively connected to the 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 unit assembly 12 and the guide rail fixing flange 13 are arranged 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 symmetrically arranged at both ends of the fixed wing skin 11 , and the guide rail fixing flanges 13 are used for connecting the deformable wing and the fuselage; the drive unit assembly 12 is arranged between the two guide rail fixing flanges 13 .

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

[0060] There is one telescopic wing drive motor 121 and two variable-curvature wing drive motors 122, which are arranged on both sides of the telescopic wing drive motor 121. The motor mounting seat 123 provides an installation position for the telescopic wing drive motor 121 and the variable-curvature wing drive motor 122, ensuring the stability of the installation of the telescopic wing drive motor 121 and the variable-curvature wing drive motor 122.

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

[0062] The guide rail fixing flange 13 is arranged 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 arranged 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;

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

[0064] The fixed wing skin 11 is divided into two parts, the upper and lower parts, and connected by screws. The guide rail fixing flange 13 is embedded in the root of the fixed wing 1 for connecting the deformable wing to the fuselage. Since the guide rail bearing frame 27 is in an I-shape, the dovetail groove guide rail 24 is arranged on the upper and lower sides of the guide rail bearing frame 27, and the ball slider 23 is then installed on the dovetail groove guide rail 24, thereby realizing the sliding connection between the upper and lower parts of the telescopic wing skin 21 and the ball slider 23, and then cooperating with 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] Among them, the telescopic transmission mechanism 22 includes a screw 221 and a nut 222; one end of the screw 221 is installed on the screw fixing part 26 through a bearing, and the screw fixing part 26 is arranged on one side of the fixed wing skin 11, and the other end of the screw 221 cooperates with the nut 222, and the nut 222 is installed on the nut mounting seat 25, and the nut mounting seat 25 is arranged in the middle part of the telescopic wing skin 21.

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

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

[0068] The present invention also provides a working method using the smooth, continuous, repeatable, retractable and bendable multi-dimensional deformable wing, comprising: the telescopic wing 2 is arranged inside the fixed wing 1, the telescopic wing 2 has a sweep angle of 30° when it moves, can be extended and retracted in the sweep direction, and has no gap during the deformation process; the root of the variable curvature wing 3 is fixedly connected to the telescopic wing 2, and after the telescopic wing 2 is fully extended, the drive component 12 drives the variable curvature transmission mechanism 34, the crank slider mechanism 32, and the knuckle bionic mechanism 33 to operate, so that the variable curvature wing skin 31 can be extended in the long normal direction to smoothly and continuously change the curvature; in the fully retracted state, the variable curvature wing 3 is in a horizontal state, and the telescopic wing 2 and the variable curvature wing 3 are driven separately to achieve different wing shape changes.

[0069] The specific working method of the smooth, continuous, reproducible, and bendable multi-dimensional deformation wing is as follows:

[0070] When the telescopic wing 2 needs to extend, the forward action of the telescopic wing drive motor 121 drives the lead screw 221 to rotate, thereby driving the nut 222 and the nut mounting seat 25 to move. At the same time, the ball 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 action of the telescopic wing drive motor 121 is sufficient;

[0071] When the variable curvature wing 3 needs to be deformed, the spline shaft 341 is driven to rotate by the variable curvature wing driving motor 122, and then the internal spline screw 342 is driven to rotate, so that the transmission block mounting seat 324 can move on the spline shaft 341, and the transmission block 323 drives the connecting rod 322 to slide in the long through hole 3241, and then the crank 321 is driven to rotate, thereby driving the first main rod 331 to move, and 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 turn, and the force from the variable curvature wing driving motor 122 is transmitted to the third main rod 333 in turn, and the passive slider 36 on the rotating shaft 37 is used to realize the bending deformation of the variable curvature wing skin.

[0072] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A smooth, continuous, reproducible, and bendable multi-dimensional deformation wing, characterized in that: include: A fixed wing (1) and a telescopic wing (2), wherein the telescopic wing (2) is arranged inside the fixed wing (1), and a driving component (12) is arranged on the fixed wing (1), and the driving component (12) is connected to the telescopic wing (2); A variable camber wing (3), the root of which is connected to the telescopic wing (2), and the variable camber wing (3) comprises a variable camber wing skin (31), a crank slider mechanism (32), a finger joint 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 arranged in the telescopic wing (2), and the variable camber transmission mechanism (34) is connected to the driving unit component (12), the crank slider mechanism (32) is arranged in 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).

2. The smooth, continuous, reproducible, and bendable multi-dimensional deformation wing according to claim 1, characterized in that: The variable curvature transmission mechanism (34) comprises a spline shaft (341) and an internal spline screw (342), wherein the spline shaft (341) is connected to the driving component (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), and the other end of the spline shaft (341) is connected to the crank slider mechanism (32).

3. The smooth, continuous, reproducible, and bendable multi-dimensional deformation wing according to claim 2, characterized in that: The crank slider mechanism (32) comprises 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 arranged on the telescopic wing (2); the transmission block (323) is located in the transmission block mounting seat (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); the crank (321) is connected to the finger joint bionic mechanism (33).

4. The smooth, continuous, reproducible, and bendable multi-dimensional deformation wing according to claim 3, characterized in that: A long through hole (3241) is provided on the side wall of the transmission block mounting seat (324), a connecting block (3242) is provided on the connecting rod (322), and the connecting block (3241) is inserted into the long through hole (3241).

5. The smooth, continuous, reproducible, and bendable multi-dimensional deformation wing according to claim 3 or 4, characterized in that: The finger joint bionic mechanism (33) comprises a first main rod (331), a second main rod (332), a third main rod (333), a fixing seat (334), a first secondary rod (335) and a second secondary rod (336); one end of the fixing 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 sequentially connected in series; the first secondary rod (335) and the second secondary rod (336) are respectively cross-mounted 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 between 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).

6. The smooth, continuous, reproducible, and bendable multi-dimensional deformation wing according to claim 5, characterized in that: The variable camber wing skin (31) comprises a double-layer carbon fiber skin (311) with a notch and three annular beams (312), wherein the annular beams (312) are arranged at intervals on the double-layer carbon fiber skin (311), and a passive slide groove (313) is provided on the annular beam (312), and the passive slide groove (313) is used to install a passive slider (36).

7. The smooth, continuous, reproducible, and bendable multi-dimensional deformation wing according to claim 6, characterized in that: The fixed wing (1) comprises a fixed wing skin (11) and a guide rail fixing flange (13); a drive unit assembly (12) and a guide rail fixing flange (13) are arranged on the fixed wing skin (11), and the guide rail fixing flange (13) is connected to the fuselage.

8. The smooth, continuous, reproducible, and bendable multi-dimensional deformation wing according to claim 7, characterized in that: The drive unit assembly (12) comprises a telescopic wing drive motor (121), a variable-camber wing drive motor (122), and a motor mounting seat (123); the motor mounting seat (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 seat (123); and the variable-camber wing drive motor (122) is connected to the spline shaft (341).

9. The smooth, continuous, reproducible, and bendable multi-dimensional deformation wing according to claim 8, characterized in that: The telescopic wing (2) comprises: a telescopic wing skin (21), a telescopic transmission mechanism (22), a ball slider (23), a dovetail groove guide rail (24), and a guide rail bearing frame (27); A guide rail fixing flange (13) is arranged on one side of the fixed wing skin (11), a guide rail bearing frame (27) is connected to the guide rail fixing flange (13), a dovetail groove guide rail (24) is arranged on both sides of the guide rail bearing frame (27), a 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 arranged in the middle of the telescopic wing skin (21), and the telescopic transmission mechanism (22) is connected to the telescopic wing driving motor (121); The telescopic transmission mechanism (22) comprises a lead screw (221) and a 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 arranged on one side of the fixed wing skin (11). The other end of the lead screw (221) cooperates with a nut (222). The nut (222) is mounted on a nut mounting seat (25). The nut mounting seat (25) is arranged in the middle of the telescopic wing skin (21).

10. A working method using the smooth, continuous, reproducible, and bendable multi-dimensional deformation wing according to any one of claims 1 to 9, characterized in that: include: The telescopic wing (2) is arranged inside the fixed wing (1), and the telescopic wing (2) moves with a sweep angle of 30°, and can be extended and retracted along the sweep direction, and there is no gap during the deformation process; The root of the variable-camber wing (3) is fixedly connected to the telescopic wing (2). When the telescopic wing (2) is fully extended, the variable-camber wing (3) can be extended in the normal direction to smoothly and continuously change the camber. 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 wing shape changes. The telescopic wing (2) is arranged inside the fixed wing (1), and the telescopic wing (2) moves with a sweep angle of 30°, and can be extended and retracted along the sweep direction, and there is no gap during the deformation process; The root of the variable-camber wing (3) is fixedly connected to the telescopic wing (2). When the telescopic wing (2) is fully extended, the driving unit assembly (12) drives the variable-camber transmission mechanism (34), the crank slider mechanism (32), and the finger joint bionic mechanism (33) to operate, so that the variable-camber wing skin (31) can be extended in the long normal direction to smoothly and continuously change the camber; in the fully retracted state, the variable-camber wing (3) is in a horizontal state, and the telescopic wing (2) and the variable-camber wing (3) are driven separately to achieve different wing shape changes.

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