Multifunctional coupling link structure
By designing a multifunctional coupled link structure, the structural weight increase and insufficient support caused by the single-function design of the fixed trailing edge joint of the existing aircraft is solved, and the effects of load balance, structural weight reduction and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202420844272.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-23
AI Technical Summary
Most of the fixed rear edge joints of existing aircraft are single-functional designs, which leads to a decrease in the number of partitions when space is limited, affecting the support effect of the upper and lower wall panels of the trailing edge; and when space is sufficient, increasing the number of joints and partitions increases the weight of the aircraft structure.
A multifunctional coupling link structure is designed, including the rear beam of the wing box section, upper and lower wall panels, coupling joints, actuator cylinders and moving wing joints. The coupling joint connects the upper and lower wall panels through the upper support arm, the lower support arm and the web, and supports suspension and rotational power connection of the moving airfoil and the actuator through the suspension joint ear and the actuator joint ear.
The effective balance between the wing surface suspension and the actuator load is achieved, the pressure on the wing box section is reduced, the number of support partitions is reduced, the weight reduction of the aircraft structure is achieved, the assembly and maintenance process is simplified, and the cost and time of field maintenance is reduced.
Smart Images
Figure CN222713729U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of aviation aircraft structure design, and in particular relates to a multifunctional coupling link structure. Background Art
[0002] The fixed trailing edge suspension joint of an aircraft wing provides fixed support for the moving wing surface, and the actuator joint provides support for the actuator of the moving wing surface. Most of the existing fixed trailing edge joints can only achieve a single function. Due to the limited design space of the fixed trailing edge of some aircraft, when the number of joints is large, the number of baffles will be reduced, which will affect the support of the upper and lower wall panels of the trailing edge. When the fixed trailing edge design space is sufficient, a sufficient number of joints and baffles can be arranged to ensure the performance of the fixed trailing edge box section, but this will increase the number of aircraft structural parts, thereby increasing the aircraft structure weight. Utility Model Content
[0003] In order to solve the above problems, the present application provides a multifunctional coupling link structure, including:
[0004] A wing box section rear beam, an upper wall panel and a lower wall panel respectively mounted on the upper edge and the lower edge of the wing box section rear beam, a coupling joint fixed between the upper wall panel, the lower wall panel and the wing box section rear beam, an actuator and a moving wing surface joint;
[0005] Among them, the coupling joint includes an upper support arm connected to the upper wall plate, a lower support arm connected to the lower wall plate, and a web connecting the upper support arm and the lower support arm; one end of the upper support arm has a suspension joint ear for articulating the moving wing surface joint, the web has an actuator joint ear and a notch for accommodating the actuator, one end of the actuator cylinder is articulated to the actuator joint ear, and the other end is articulated to the moving wing surface joint.
[0006] Preferably, the upper wall panel includes an upper wall panel of the wing box section fixedly connected to the upper edge of the rear beam of the wing box section and an upper honeycomb wall panel with a fixed trailing edge that is butt-jointed with the upper wall panel of the wing box section, the lower wall panel includes a lower wall panel of the wing box section fixedly connected to the lower edge of the rear beam of the wing box section and a lower honeycomb wall panel with a fixed trailing edge that is butt-jointed with the lower wall panel of the wing box section, the rear ends of the upper wall panel of the wing box section and the lower wall panel of the wing box section are overlapped on the coupling joint, and the upper honeycomb wall panel with a fixed trailing edge and the lower honeycomb wall panel with a fixed trailing edge are completely overlapped on the coupling joint.
[0007] Preferably, the upper support arm and the lower support arm of the coupling joint both have a step surface for overlapping the upper wall panel of the wing box section and the lower wall panel of the wing box section.
[0008] Preferably, the actuator joint ear is a box-shaped double-ear structure formed by a web.
[0009] Preferably, the web is provided with a plurality of reinforcing ribs.
[0010] Preferably, the coupling joint is in an 8-shaped shape, and a spherical bearing is arranged in the suspension joint ear. An outer shoulder bushing and an inner shoulder bushing are arranged in one ear hole of the actuator joint ear, and a shoulder bushing and a sliding bushing are arranged in the other ear hole.
[0011] The advantages of the present application include: through the multifunctional coupling joint, an effective balanced load is achieved between the intersection load of the moving wing surface suspension and the load on the actuator, thereby reducing the pressure on the wing box section; support is provided for the upper and lower wall panels of the fixed trailing edge, the number of supporting partitions is reduced, and thus the weight of the aircraft structure is reduced; and taking into account the field environmental factors, the combined structure of the ear and the coupling joint is conducive to error compensation during the assembly process, and is convenient for the maintenance and replacement of the joint ear and bearing, which shortens the time for field maintenance and assurance, and also saves costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is an axonometric view of a coupling joint according to a preferred embodiment of the present application;
[0013] Figure 2 This is an axonometric view of a coupling joint according to a preferred embodiment of the present application;
[0014] Figure 3 This is a diagram of a coupling joint and a wall plate connection in a preferred embodiment of the present application;
[0015] Figure 4 This is a schematic diagram of a coupling joint connection according to a preferred embodiment of the present application. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the implementation of this application will be described in more detail in combination with the drawings in the implementation of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described implementation is a part of the implementation of this application, not all of the implementations. The implementation described below with reference to the drawings is exemplary and is intended to be used to explain this application, and cannot be understood as a limitation on this application. Based on the implementation in this application, all other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The implementation of this application is described in detail below in combination with the drawings.
[0017] The present application provides a multifunctional coupling link structure, such as Figure 1-Figure 4 ,include:
[0018] A wing box section rear beam 14, an upper wall plate and a lower wall plate respectively mounted on the upper edge and the lower edge of the wing box section rear beam 14, a coupling joint 1 fixed between the upper wall plate, the lower wall plate and the wing box section rear beam 14, an actuator 11 and a moving wing surface joint 12;
[0019] Among them, the coupling joint 1 includes an upper support arm connected to the upper wall plate, a lower support arm connected to the lower wall plate, and a web connecting the upper support arm and the lower support arm; one end of the upper support arm has a suspension joint ear 2 for articulating the moving wing surface joint 12, the web has an actuator joint ear 8 and a notch for accommodating the actuator, one end of the actuator cylinder 11 is articulated to the actuator joint ear 8, and the other end is articulated to the moving wing surface joint 12.
[0020] Preferably, the upper wall panel includes a wing box section upper wall panel 13 fixedly connected to the upper edge of the wing box section rear beam 14 and a fixed trailing edge upper honeycomb wall panel 9 docked with the wing box section upper wall panel 13, the lower wall panel includes a wing box section lower wall panel 15 fixedly connected to the lower edge of the wing box section rear beam 14 and a fixed trailing edge lower honeycomb wall panel 10 docked with the wing box section lower wall panel 15, the tail ends of the wing box section upper wall panel 13 and the wing box section lower wall panel 15 are overlapped on the coupling joint 1, and the fixed trailing edge upper honeycomb wall panel 9 and the fixed trailing edge lower honeycomb wall panel 10 are completely overlapped on the coupling joint 1.
[0021] Preferably, both the upper support arm and the lower support arm of the coupling joint 1 have a step surface for overlapping the upper wall plate 13 of the wing box section and the lower wall plate 15 of the wing box section.
[0022] Preferably, the actuator joint lug 8 is a box-shaped double-lug structure formed by a web.
[0023] Preferably, the web is provided with a plurality of reinforcing ribs.
[0024] Preferably, the coupling joint 1 is in an 8-shape, and a spherical bearing 3 is arranged in the suspension joint ear piece 2. An outer shoulder bushing 6 and an inner shoulder bushing 7 are arranged in one ear hole of the actuator joint ear piece 8, and a shoulder bushing 4 and a sliding bushing 5 are arranged in the other ear hole.
[0025] When the multifunctional coupling joint is used to connect the fixed trailing edge of the wing with the moving wing surface, the joint arm 1 is connected to the upper honeycomb wall plate 9 and the lower honeycomb wall plate 10 of the fixed trailing edge, replacing the partition, supporting the upper and lower honeycomb wall plates, thereby reducing the number of trailing edge partitions and reducing the structural weight. At the same time, the joint arm 1 is also the arm of the suspension joint ear piece 2 and the actuator joint ear piece 8. The suspension joint ear piece is connected to the moving wing surface suspension joint, supporting and suspending the moving wing surface. The joint bearing 3 is used to ensure the fixed axis rotation of the moving wing surface, and the actuator joint ear piece provides connection support for the actuator cylinder that provides rotational power for the moving wing surface. The loads between the suspension joint and the actuator joint will offset each other partially on the joint arm, thereby reducing the pressure on the wing box section. The shoulder bushing 4, the outer shoulder bushing 6 and the inner shoulder bushing 7 are used to ensure that the coupling joint does not cause damage to the ear piece when it is connected to the actuator cylinder ear piece, and the sliding bushing 5 is used to ensure axial compensation when the ear piece is connected.
[0026] The advantages of the present application include: through the multifunctional coupling joint, an effective balanced load is achieved between the intersection load of the moving wing surface suspension and the load on the actuator, thereby reducing the pressure on the wing box section; support is provided for the upper and lower wall panels of the fixed trailing edge, the number of supporting partitions is reduced, and thus the weight of the aircraft structure is reduced; and taking into account the field environmental factors, the combined structure of the ear and the coupling joint is conducive to error compensation during the assembly process, and is convenient for the maintenance and replacement of the joint ear and bearing, which shortens the time for field maintenance and assurance, and also saves costs.
[0027] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A multifunctional coupling link structure, characterized in that: include: A wing box section rear beam (14), an upper wall plate and a lower wall plate respectively mounted on the upper edge and the lower edge of the wing box section rear beam (14), a coupling joint (1) fixed between the upper wall plate, the lower wall plate and the wing box section rear beam (14), an actuator (11) and a moving wing surface joint (12); The coupling joint (1) comprises an upper support arm connected to an upper wall plate, a lower support arm connected to a lower wall plate, and a web connecting the upper support arm and the lower support arm; one end of the upper support arm is provided with a suspension joint ear (2) for articulating a moving wing surface joint (12); the web is provided with an actuator joint ear (8) and a notch for accommodating an actuator; one end of an actuator cylinder (11) is articulated to the actuator joint ear (8), and the other end is articulated to the moving wing surface joint (12).
2. The multifunctional coupling link structure according to claim 1, characterized in that: The upper wall panel comprises a wing box section upper wall panel (13) fixedly connected to the upper edge of the wing box section rear beam (14) and a fixed trailing edge upper honeycomb wall panel (9) butted against the wing box section upper wall panel (13); the lower wall panel comprises a wing box section lower wall panel (15) fixedly connected to the lower edge of the wing box section rear beam (14) and a fixed trailing edge lower honeycomb wall panel (10) butted against the wing box section lower wall panel (15); the tail ends of the wing box section upper wall panel (13) and the wing box section lower wall panel (15) are overlapped on the coupling joint (1); and the fixed trailing edge upper honeycomb wall panel (9) and the fixed trailing edge lower honeycomb wall panel (10) are completely overlapped on the coupling joint (1).
3. The multifunctional coupling link structure according to claim 1, characterized in that: The upper support arm and the lower support arm of the coupling joint (1) both have step surfaces for overlapping the upper wall plate (13) of the wing box section and the lower wall plate (15) of the wing box section.
4. The multifunctional coupling link structure according to claim 1, characterized in that: The actuator joint ear piece (8) is a box-shaped double-ear structure formed by a web.
5. The multifunctional coupling link structure according to claim 1, characterized in that: The web is provided with a plurality of reinforcing ribs.
6. The multifunctional coupling link structure according to claim 1, characterized in that: The coupling joint (1) is in an 8-shape.
7. The multifunctional coupling link structure according to claim 1, characterized in that: A joint bearing (3) is arranged inside the suspension joint ear piece (2).
8. The multifunctional coupling link structure according to claim 4, characterized in that: An outer boss bushing (6) and an inner boss bushing (7) are arranged at one ear hole of the actuator joint ear piece (8), and a boss bushing (4) and a sliding bushing (5) are arranged at the other ear hole.