Vertical limiting structure
By designing a vertical limit structure including a limit pin and a bushing, the problem of scissor difference in aircraft components under aerodynamic action in the prior art is solved, and the effect of effectively limiting the vertical scissor difference and releasing the spread deformation in a small gap position is achieved.
Patent Information
- Application Number
- CN202420906133.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-04-28
AI Technical Summary
In the existing aircraft structural design, components at the docking surface of the aircraft are prone to scissor differences under aerodynamic action. The existing vertical limit structure of the pull rod requires a wide expansion gap, which cannot effectively limit the vertical scissor differences of the components.
A vertical limiting structure is designed, including a first rib, a second rib, a limit pin and a bushing, which is sleeved through the gap of the bushing to limit the parallel displacement between the first rib and the second rib.
This structure can effectively limit the vertical scissor difference in positions where the gap between the aircraft docking surface components is small, release the aircraft's expansion extrusion or tensile deformation, and the required installation space is small.
Smart Images
Figure CN222876264U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of aircraft structure design, and in particular relates to a vertical limiting structure. Background Art
[0002] In the existing field of aircraft structure design technology, at the aircraft joint surface, the components on both sides are deformed and extruded in the spanwise direction, and the direction of the vertical rib web surface is the spanwise direction, which needs to be disconnected at the joint surface. At this time, the components on both sides will have a scissors difference under the action of aerodynamic force, and a structure is needed to limit the scissors difference of the components on both sides.
[0003] At present, the pull rod vertical limit structure is widely used, but this vertical limit structure requires a wider span gap to be used. When the span gap is too small, a new vertical limit structure is needed. Utility Model Content
[0004] In order to solve the above problems, the present application provides a vertical limiting structure, including:
[0005] A first rib, a second rib parallel to the first rib and having a gap therebetween, a limit pin with an axis perpendicular to the first rib and mounted on the first rib, and a bushing mounted on the second rib, wherein the limit pin has a gap and is sleeved in the bushing, and is used to limit the displacement between the first rib and the second rib in a direction parallel to both directions.
[0006] Preferably, the second rib plate has a mounting hole for bushing assembly, the mounting hole has threaded holes around it, one end of the bushing has a mounting edge, and the bolt assembly passes through the through hole of the mounting edge to connect with the threaded hole.
[0007] Preferably, one end of the limit pin has a mounting plate, the mounting plate has a plurality of bolt holes, the first rib has a mounting table surface corresponding to the mounting plate, the mounting table surface has a plurality of threaded holes corresponding to the bolt holes, and the bolt assembly passes through the bolt holes to fix the mounting plate on the mounting table surface.
[0008] Preferably, the first rib plate has reinforcing ribs, and the mounting table surface has radial ribs connected to the reinforcing ribs.
[0009] Preferably, the hole through which the bushing and the limit pin cooperate is in the shape of a racetrack, and the long axis direction thereof is the direction in which the limit pin releases its displacement.
[0010] Preferably, the first rib plate and the second rib plate are in a triangular plate shape, and the plate surface has a plurality of staggered reinforcing ribs.
[0011] Preferably, the bushing includes an outer tube and an inner ring, the outer wall surface of the outer tube is sleeved within the mounting hole of the second rib, the inner ring is sleeved within the inner wall surface of the outer tube, and the outer edge of the inner ring is U-shaped bent, so that there is a certain elasticity between the inner ring and the outer tube.
[0012] Preferably, the outer cylinder is provided with an anti-rotation groove, and the inner ring is provided with an anti-rotation protrusion, so as to limit the relative rotation between the outer cylinder and the inner ring.
[0013] The advantages of the present application include: the present application is installed at a position where the space gap between the components on both sides of the aircraft joint surface is small, which can limit the vertical scissor difference between the first rib and the second rib, release the aircraft spanwise compression or tensile deformation, and the required installation space is small. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a cross-sectional view of the vertical limiting structure of a preferred embodiment of the present application.
[0015] Figure 2 This is an axial partial view of a vertical limiting structure of a preferred embodiment of the present application.
[0016] Figure 3 This is an installation diagram of a vertical limiting structure of a preferred embodiment of the present application.
[0017] Figure 4 This is a split view of the vertical limiting structure of a preferred embodiment of the present application. DETAILED DESCRIPTION
[0018] 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.
[0019] In order to solve the above problems, the present application provides a vertical limit structure, such as Figure 1-Figure 4 As shown, including:
[0020] A first rib 1, a second rib 2 parallel to the first rib 1 and with a gap therebetween, a limit pin 3 with an axis perpendicular to the first rib 1 and mounted on the first rib 1, and a bushing 5 mounted on the second rib 2, wherein the limit pin 3 has a gap and is sleeved in the bushing 5, and is used to limit the displacement between the first rib 1 and the second rib 2 in a direction parallel to both directions.
[0021] Preferably, the second rib plate 2 has a mounting hole for assembling the bushing 5, the mounting hole has threaded holes around it, one end of the bushing 5 has a mounting edge, and the bolt assembly 4 passes through the through hole of the mounting edge and is connected to the threaded hole.
[0022] Preferably, one end of the limit pin 3 has a mounting plate, the mounting plate has a plurality of bolt holes, the first rib 1 has a mounting table surface corresponding to the mounting plate, the mounting table surface has a plurality of threaded holes corresponding to the bolt holes, and the bolt assembly 4 passes through the bolt holes to fix the mounting plate on the mounting table surface.
[0023] Preferably, the first rib plate 1 has reinforcing ribs, and the mounting table surface has radial ribs connected to the reinforcing ribs.
[0024] Preferably, the hole of the bushing 5 that cooperates with the limiting pin 3 is in a racetrack shape, and the long axis direction thereof is the direction in which the limiting pin 3 releases its displacement.
[0025] Preferably, the first rib plate 1 and the second rib plate 2 are in a triangular plate shape, and the plate surface has a plurality of staggered reinforcing ribs.
[0026] Preferably, the bushing 5 includes an outer tube and an inner ring, the outer wall surface of the outer tube is sleeved within the mounting hole of the second rib 2, the inner ring is sleeved within the inner wall surface of the outer tube, and the outer edge of the inner ring is U-shaped, so that there is a certain elasticity between the inner ring and the outer tube.
[0027] Preferably, the outer cylinder is provided with an anti-rotation groove, and the inner ring is provided with an anti-rotation protrusion, so as to limit the relative rotation between the outer cylinder and the inner ring.
[0028] The advantages of the present application include: the present application is installed at a position where the space gap between the components on both sides of the aircraft joint surface is small, which can limit the vertical scissor difference between the first rib and the second rib, release the aircraft spanwise compression or tensile deformation, and the required installation space is small.
[0029] The advantages of the present application include: the present application is installed at a position where the space gap between the components on both sides of the aircraft joint surface is small, which can limit the vertical scissor difference between the first rib and the second rib, release the aircraft spanwise compression or tensile deformation, and the required installation space is small.
[0030] 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 vertical limiting structure, characterized in that: include: A first rib (1), a second rib (2) parallel to the first rib (1) and having a gap therebetween, a limit pin (3) with an axis perpendicular to the first rib (1) and mounted on the first rib (1), and a bushing (5) mounted on the second rib (2), wherein the limit pin (3) has a gap and is sleeved in the bushing (5), and is used to limit the displacement between the first rib (1) and the second rib (2) in a direction parallel to both directions.
2. The limiting structure according to claim 1, characterized in that: The second rib plate (2) has a mounting hole for assembling the bushing (5), the periphery of the mounting hole has threaded holes, one end of the bushing (5) has a mounting edge, and the bolt assembly (4) passes through the through hole of the mounting edge and is connected to the threaded hole.
3. The limiting structure according to claim 1, characterized in that: One end of the limit pin (3) has a mounting plate, the mounting plate has a plurality of bolt holes, the first rib plate (1) has a mounting table surface corresponding to the mounting plate, the mounting table surface has a plurality of threaded holes corresponding to the bolt holes, and a bolt assembly (4) passes through the bolt holes to fix the mounting plate on the mounting table surface.
4. The limiting structure according to claim 3, characterized in that: The first rib plate (1) is provided with reinforcing ribs, and the mounting table surface is provided with radial ribs connected to the reinforcing ribs.
5. The limiting structure according to claim 2, characterized in that: The hole in which the bushing (5) and the limiting pin (3) cooperate is in a racetrack shape, and the long axis direction is the direction in which the limiting pin (3) releases its displacement.
6. The limiting structure according to claim 1, characterized in that: The first rib plate (1) and the second rib plate (2) are in the shape of a triangular plate, and the plate surface is provided with a plurality of interlaced reinforcing ribs.
7. The limiting structure according to claim 2, characterized in that: The bushing (5) comprises an outer tube and an inner ring. The outer wall of the outer tube is sleeved within the mounting hole of the second rib (2), and the inner ring is sleeved within the inner wall of the outer tube. The outer edge of the inner ring is U-shaped bent, so that there is a certain elasticity between the inner ring and the outer tube.
8. The limiting structure according to claim 1, characterized in that: The outer cylinder is provided with an anti-rotation groove, and the inner ring is provided with an anti-rotation protrusion, which limits the relative rotation between the outer cylinder and the inner ring.