Intelligent morphing drive device for an aeronautical wing trailing edge

Abstract

The application relates to the field of aviation intelligent structures, in particular to an intelligent deformation driving device for the trailing edge of an aviation wing, which is mainly composed of a fixed module assembly, a movable module assembly, a power device and a connecting assembly, wherein the first connecting rod mechanism 7 is driven to operate by the first-stage power device, so as to drive the second movable module 3 to rotate around the shaft, and meanwhile, the second connecting rod mechanism 8 is driven to operate by the second-stage power device 6, so as to drive the tail movable module 4 to rotate around the shaft. By setting the two-stage connecting rod deflection angles and controlling the rotating speed of the motor, the synchronous / asynchronous starting and stopping target is realized, and after the two-stage power devices are driven, the trailing edge wing generates greater deformation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aviation intelligent structure, and particularly relates to an intelligent deformation driving device for an aviation wing trailing edge. BACKGROUND

[0002] The aviation wing is a main component for providing lift for an airplane, and its external structure has a huge influence on flight performance. With the continuous improvement of flight speed and carrying capacity, the aviation wing trailing edge which can be continuously and smoothly changed in geometry according to specific flight conditions has become a research hotspot.

[0003] In recent years, there are mainly two ways for the continuous and smooth deformation of the wing trailing edge. One is to use intelligent materials for the wing trailing edge to realize the deformation of the trailing edge by using the characteristics of the materials. The wing structure designed by using this method is simple and light in weight, but the intelligent material has a slow deformation response and cannot bear a large aerodynamic load, which is difficult to match the flight requirements. The other is to use a single-stage driving mechanism to drive the wing trailing edge to deform. This way has a fast deformation response, but the deformation amplitude is small, which is difficult to meet the flight requirements.

[0004] In view of the shortcomings of the above methods, an intelligent deformation driving device for the wing trailing edge is designed, which amplifies the output torque of the motor through a two-stage multi-link mechanism to drive the wing trailing edge to deform. This driving method not only can output a large deformation, but also effectively improves the real-time performance and stability of the trailing edge deformation. SUMMARY

[0005] The purpose of the present application is to design an intelligent deformation driving device for the wing trailing edge of an airplane. The device uses a motor to drive a two-stage multi-link mechanism to drive the wing trailing edge to deform. This driving method not only outputs a large deformation, but also ensures the real-time performance and stability of the deformation.

[0006] The intelligent deformation driving device for the wing trailing edge of an airplane according to the present application comprises at least two driving units fixed at the trailing end of the wing and distributed along the span direction. Each driving unit comprises a plurality of stages of modules hingedly connected in sequence along the heading direction. The height of each stage of modules gradually decreases along the heading direction. The modules comprise a fixed module assembly installed at the trailing end of the wing truss, a tail swing module located at the tail end, and at least one movable module located between the fixed module assembly and the tail swing module.

[0007] A plurality of links are connected between each movable module and the next movable module to form a link mechanism for swinging the next movable module. A mounting space is formed in the middle of each movable module, and a power device for driving the link mechanism is installed in the mounting space. The power device comprises a power supply.

[0008] Preferably, the movable module comprises a first movable module assembly and a second movable module assembly hingedly connected in sequence at the rear end of the fixed module assembly, wherein the power device comprises a first stage power device installed in the installation space of the first movable module assembly and a second stage power device installed in the installation space of the second movable module assembly.

[0009] The connecting rods comprise first stage connecting rods and second stage connecting rods.

[0010] The first stage connecting rods are hingedly connected at the side of the first movable module assembly and the second movable module assembly, and the first movable module assembly, the second movable module assembly and the first stage connecting rods form a first connecting rod mechanism, and the first stage power device drives the first connecting rod mechanism to swing the second movable module assembly relative to the first movable module assembly.

[0011] The second stage connecting rods are hingedly connected at the side of the second movable module assembly and the tail swing module, and the second movable module assembly, the tail swing module and the second stage connecting rods form a second connecting rod mechanism, and the second stage power device drives the second connecting rod mechanism to swing the tail swing module relative to the second movable module assembly.

[0012] Preferably, a long connecting rod is hingedly connected between the fixed module assembly and the second movable module assembly, and the long connecting rod, the fixed module assembly, the first movable module assembly and the second movable module assembly form a third connecting rod mechanism.

[0013] Preferably, the connecting rods comprise a rocker arm, a first short rod, a triangular rocker arm, a second short rod, a connecting arm and a third short rod, wherein one end of the rocker arm is connected with the driving device, the other end is hingedly connected with the first short rod, one end of the triangular rocker arm is hingedly connected with the movable module, the other end is hingedly connected with the first short rod and the second short rod respectively, and the rocker arm, the first short rod, the triangular rocker arm and the movable module form a first planar four-bar mechanism.

[0014] The other end of the second short rod is hingedly connected with the connecting arm, the middle of the connecting arm is hingedly connected with the movable module, the other end of the connecting arm is hingedly connected with the third short rod, and the triangular rocker arm, the second short rod, the connecting arm and the movable module form a second planar four-bar mechanism.

[0015] The connecting arm, the movable module, the third short rod and the next movable module of the movable module form a third planar four-bar mechanism.

[0016] Preferably, a skin is installed on the surface of the movable module, and the skins between adjacent movable modules are overlapped with each other.

[0017] Preferably, the movement mode between the driving units comprises synchronous movement or differential.

[0018] The advantages of the present application include:

[0019] a) The application adopts a two-stage power device to drive the wing trailing edge to deform integrally, which has a larger deformation range and higher carrying capacity;

[0020] b) The motor is used as the power source, and the wing trailing edge deforms in real time, which is easier to control and has better stability. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a preferred embodiment of the application for an intelligent deformation driving device for the trailing edge of an aircraft wing;

[0022] Figure 2 is a preferred embodiment of the application for a connecting rod schematic diagram. DETAILED DESCRIPTION

[0023] In order to make the technical solutions of the application and its advantages clearer, the technical solutions of the application will be further clearly and completely described below in combination with the drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the application, and are only used to explain the application, but not to limit the application. It should be noted that, for the purpose of description, only parts related to the application are shown in the drawings, and other related parts can be referred to the general design. In the case of no conflict, the embodiments in the application and the technical features in the embodiments can be combined to obtain new embodiments.

[0024] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the application should be understood as the general meaning understood by the general technical personnel in the field to which the application belongs. The words such as "up", "down", "left", "right", "center", "vertical", "horizontal", "inner", "outer" and the like used in the description of the application only indicate the relative direction or positional relationship, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, the relative positional relationship may also change accordingly, so it cannot be understood as a limitation on the application. The "first", "second", "third" and similar terms used in the description of the application are only for the purpose of description, to distinguish different components, and cannot be understood as indicating or implying relative importance. The "one", "an" or "the" and similar terms used in the description of the application should not be understood as an absolute limitation on the number, but should be understood as the existence of at least one. The "include" or "contain" and similar terms used in the description of the application mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects.

[0025] In addition, it needs to be explained that, unless otherwise explicitly specified and limited, the "installation", "connection", "linkage" and similar words used in the description of the present application should be understood in a broad sense, for example, the connection can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, or internal connection of two elements, and the person skilled in the art can understand the specific meaning of the present application according to the specific circumstances.

[0026] The purpose of the present application is to design an intelligent deformation driving device for the trailing edge of an aircraft wing, which adopts a motor to drive a two-stage multi-link mechanism to drive the trailing edge of the wing to deform. This driving method not only has large deformation output, but also can ensure the real-time and stability of the deformation.

[0027] The intelligent deformation driving device for the trailing edge of an aircraft wing of the present application comprises at least two driving units fixed at the trailing end of the wing and distributed along the span direction, each driving unit comprising a plurality of stages of modules hingedly connected in sequence along the flight direction, the height of each stage of modules gradually decreasing along the flight direction; the modules comprise a fixed module assembly 1 installed at the trailing end of the wing truss, a tail swing module 4 located at the tail end, and at least one movable module between the fixed module assembly 1 and the tail swing module 4.

[0028] A plurality of links are connected between each movable module and the next movable module to form a link mechanism for swinging the next movable module, and a mounting space is formed in the middle of each movable module, in which a power device for driving the link mechanism is installed; the power device comprises a power supply.

[0029] Preferably, the movable module comprises a first movable module assembly 2 and a second movable module assembly 3 hingedly connected in sequence at the rear end of the fixed module assembly 1, wherein the power device comprises a first-stage power device 5 installed in the mounting space of the first movable module assembly 2 and a second-stage power device 6 installed in the mounting space of the second movable module assembly 3.

[0030] The link comprises a first-stage link and a second-stage link,

[0031] A plurality of first-stage links are hingedly connected to the side surfaces of the first movable module assembly 2 and the second movable module assembly 3, and the first movable module assembly 2, the second movable module assembly 3 and the plurality of first-stage links constitute a first link mechanism 7, and the first-stage power device 5 drives the first link mechanism 7 to swing the second movable module assembly 3 relative to the first movable module assembly 2.

[0032] A plurality of second-stage connecting rods are hinged to the side of the second movable module assembly 3 and the tail swing module 4, and the second-stage connecting rods of the second movable module assembly 3 and the tail swing module 4 form a second connecting rod mechanism 8, and the second-stage power device 6 drives the second connecting rod mechanism 8 to swing the tail swing module 4 relative to the second movable module assembly 3.

[0033] As shown in Figure 1 the first movable module assembly 2 is connected to the fixed module assembly 1 at the left end and connected to the tail swing module 4 at the right end through a pin shaft, and is connected to the first power device 5 through a bolt and a rotating shaft, respectively;

[0034] The tail swing module 4 is connected to the first movable module assembly 2 at the left end and connected to the tail swing module 4 at the right end through a pin shaft.

[0035] Preferably, a long connecting rod 9 is hinged between the fixed module assembly 1 and the second movable module assembly 3, and the long connecting rod 9, the fixed module assembly 1, the first movable module assembly 2, and the second movable module assembly 3 form a third connecting rod mechanism, which is used to amplify the output torque of the first power device 5 and transmit power, and reduce the formation of the second movable module assembly 3, and can drive the first movable module assembly 2 to move by means of the movement of the second movable module assembly 3.

[0036] Preferably, the plurality of connecting rods include a rocker arm 101, a first short rod 102, a triangular rocker arm 103, a second short rod 104, a connecting arm 105, and a third short rod 106, wherein one end of the rocker arm 101 is connected to a driving device, the other end is hinged to the first short rod 102, one end of the triangular rocker arm 103 is hinged to a movable module, the other end is hinged to the first short rod 102 and the second short rod 104, respectively, and the rocker arm 101, the first short rod 102, the triangular rocker arm 103, and the movable module form a first planar four-bar mechanism;

[0037] The other end of the second short rod 104 is hinged to the connecting arm 105, the middle of the connecting arm 105 is hinged to the movable module, the other end of the connecting arm 105 is hinged to the third short rod 106, and the triangular rocker arm 103, the second short rod 104, the connecting arm 105, and the movable module form a second planar four-bar mechanism,

[0038] The connecting arm 105, the movable module, the third short rod 106, and the next movable module of the movable module form a third planar four-bar mechanism.

[0039] Preferably, a skin is mounted on the surface of the movable module, and the skins between adjacent movable modules are overlapped with each other.

[0040] Preferably, the movement mode between the driving units includes synchronous movement or differential.

[0041] The specific implementation is as follows:

[0042] The first connecting rod mechanism 7 is driven by the first power device to rotate, thereby driving the second movable module 3 to rotate around the shaft, and the second connecting rod mechanism 8 is driven by the second power device 6 to rotate, thereby driving the tail swing module 4 to rotate around the shaft. By setting the two-stage connecting rod deflection angle and controlling the motor speed, the synchronous / asynchronous start-stop target is achieved, and after the two-stage power device is driven, the rear wing generates greater deformation.

[0043] The advantages of the present application include:

[0044] a The present application adopts two-stage power devices to drive the overall deformation of the wing rear edge, and the deformation range is larger and the carrying capacity is higher;

[0045] b The motor is used as the power source, and the real-time deformation of the wing rear edge is more easily controlled and has better stability.

[0046] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An intelligent morphing drive device for an aerofoil trailing edge, characterized in that, The application relates to a wing drive unit, which comprises at least two drive units fixed at the rear end of a wing and distributed along the span direction, each drive unit comprising a plurality of modules hinged in sequence along the flight direction, the height of each module gradually decreasing along the flight direction; the modules comprise a fixed module assembly (1) installed at the rear end of a wing truss, a tail swing module (4) located at the tail end, and at least one movable module between the fixed module assembly (1) and the tail swing module (4). A plurality of connecting rods are connected between each movable module and the movable module below it to form a connecting rod mechanism for swinging the movable module below; a middle part of each movable module forms an installation space, and a power device for driving the connecting rod mechanism is installed in the installation space. The movable module comprises a first movable module assembly (2) and a second movable module assembly (3) hinged in sequence at the rear end of the fixed module assembly (1), wherein the power device comprises a first-stage power device (5) installed in the installation space of the first movable module assembly (2) and a second-stage power device (6) installed in the installation space of the second movable module assembly (3). The connecting rod comprises a first-stage connecting rod and a second-stage connecting rod, A plurality of first-stage connecting rods are hinged at the side faces of the first movable module assembly (2) and the second movable module assembly (3), the first movable module assembly (2), the second movable module assembly (3) and the plurality of first-stage connecting rods form a first connecting rod mechanism (7), and the first-stage power device (5) drives the first connecting rod mechanism (7) to swing the second movable module assembly (3) relative to the first movable module assembly (2). A plurality of second-stage connecting rods are hinged at the side faces of the second movable module assembly (3) and the tail swing module (4), the second movable module assembly (3), the tail swing module (4) and the plurality of second-stage connecting rods form a second connecting rod mechanism (8), and the second-stage power device (6) drives the second connecting rod mechanism (8) to swing the tail swing module (4) relative to the second movable module assembly (3). The plurality of connecting rods comprise a rocker arm (101), a first short rod (102), a triangular rocker arm (103), a second short rod (104), a connecting arm (105) and a third short rod (106), wherein one end of the rocker arm (101) is connected with a driving device, the other end is hinged with the first short rod (102), one end of the triangular rocker arm (103) is hinged on a movable module, the other end is hinged with the first short rod (102) and the second short rod (104) respectively, the rocker arm (101), the first short rod (102), the triangular rocker arm (103) and the movable module form a first planar four-bar mechanism; The other end of the second short rod (104) is hinged with the connecting arm (105), the middle part of the connecting arm (105) is hinged on the movable module, the other end of the connecting arm (105) is hinged with the third short rod (106), the triangular rocker arm (103), the second short rod (104), the connecting arm (105) and the movable module form a second planar four-bar mechanism, The connecting arm (105), the movable module, the third short rod (106) and the movable module below form a third planar four-bar mechanism.

2. The intelligent morphing drive apparatus for the trailing edge of an aeronautical wing according to claim 1, characterized in that, A long connecting rod (9) is hinged between the fixed module assembly (1) and the second movable module assembly (3), and the long connecting rod (9), the fixed module assembly (1), the first movable module assembly (2) and the second movable module assembly (3) form a third connecting rod mechanism.

3. The intelligent morphing drive apparatus for the trailing edge of an aeronautical wing according to claim 1, characterized in that, The movable module is provided with a skin, and the skins between adjacent movable modules are overlapped with each other.

4. The intelligent morphing drive apparatus for the trailing edge of an aeronautical wing according to claim 1, characterized in that, The movement mode between the driving units includes synchronous movement or differential.

5. The intelligent morphing drive apparatus for the trailing edge of an aeronautical wing according to claim 1, wherein, The power device comprises a power supply.

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