Composite material beam and wing rib connecting structure

Abstract

The utility model belongs to the technical field of aircraft wing design, and particularly relates to a composite material beam and wing rib connecting structure which comprises a beam, a wing rib and a connecting angle box. The beam comprises a beam web, a beam upper edge strip and a beam lower edge strip; the connecting angle box comprises an upper connecting angle box and a lower connecting angle box; the upper connecting angle box is connected with the upper half part of the beam web, the upper edge strip of the beam and the upper half part of the wing rib; and the lower connecting angle box is connected with the lower half part of the beam web, the beam lower edge strip and the lower half part of the wing rib. And the assembling difficulty between the wing rib and the composite beam can be reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aircraft wing design, and particularly relates to a composite beam and rib connecting structure. BACKGROUND

[0002] In the wing box section, the ribs can be connected to the web struts integrally formed with the metal beam. However, the struts cannot be integrally formed with the composite beam, so the beam web struts need to consider the assembly problem with the beam. The integral beam web struts need to meet the cooperation with the upper and lower edge strips of the composite beam at the same time, and the composite beam itself has large forming tolerance and serious slot type port contraction, which leads to the difficulty in assembly of the integral beam web struts. SUMMARY

[0003] In order to solve the above problems, the application provides a composite beam and rib connecting structure, which comprises:

[0004] a beam, a rib, and a connecting corner box.

[0005] The beam comprises a beam web, an upper edge strip of the beam, and a lower edge strip of the beam.

[0006] The connecting corner box comprises an upper connecting corner box and a lower connecting corner box.

[0007] The upper connecting corner box is connected with the upper half of the beam web, the upper edge strip of the beam, and the upper half of the rib.

[0008] The lower connecting corner box is connected with the lower half of the beam web, the lower edge strip of the beam, and the lower half of the rib.

[0009] Preferably, the upper connecting corner box comprises a bottom plate, an upper connecting corner box upper edge strip vertically connected to the upper edge of the bottom plate, and an upper connecting corner box side edge strip vertically connected to the side edge of the bottom plate; the bottom plate is fixedly connected with the upper half of the rib, the upper connecting corner box upper edge strip is fixedly connected with the upper edge strip of the beam, and the upper connecting corner box side edge strip is fixedly connected with the beam web.

[0010] Preferably, the upper connecting corner box upper edge strip and the upper connecting corner box side edge strip are connected through a round corner transition.

[0011] Preferably, the lower connecting corner box lower edge strip and the lower connecting corner box side edge strip are connected through a round corner transition.

[0012] Preferably, the beam web is perpendicular to the rib.

[0013] Preferably, the beam is made of composite material.

[0014] Preferably, there is a gap between the lower connecting corner box and the upper connecting corner box

[0015] The advantages of the present application include: separating the connecting struts of the web plate and the wing rib into upper and lower parts, which can reduce the difficulty of matching between the wing rib struts and the composite beam, and ensure the matching relationship between the wing rib and the composite beam. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of a composite beam and wing rib connecting structure according to a preferred embodiment of the present application. DETAILED DESCRIPTION

[0017] In order to make the technical solutions of the present application and its advantages clearer, the technical solutions of the present application will be further described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present application, and are only used to explain the present application, but not to limit the present application. It should be noted that, for the purpose of description, only parts related to the present 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 present application and the technical features in the embodiments can be combined to obtain new embodiments.

[0018] In addition, it should be noted that, unless otherwise explicitly specified and limited, the terms such as "mounting", "connecting", "connecting" and the like 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 directly connected, or indirectly connected through intermediate medium, or the internal connection of two elements, the person skilled in the art can understand the specific meaning of the present application according to the specific circumstances.

[0019] As shown in Figure 1 The present application provides a composite beam and wing rib connecting structure, comprising:

[0020] Beam 1, wing rib 4, connecting corner box;

[0021] The beam 1 comprises a web plate 12, an upper beam edge strip 11 and a lower beam edge strip 13;

[0022] The connecting corner box comprises an upper connecting corner box 2 and a lower connecting corner box 3, the upper connecting corner box 2 is connected with the upper half of the web plate 12, the upper beam edge strip 11 and the upper half of the wing rib 4;

[0023] The lower connecting corner box 3 is connected with the lower half of the web 12, the lower edge strip 13 of the beam and the lower half of the wing rib 4. The upper and lower sides of the wing rib structure respectively have wing rib struts, and a plurality of cross ribs are arranged between the wing rib struts. The octagonal through port is arranged in the quadrilateral box structure formed by the cross ribs and the wing rib struts. The edges of the through port are provided with a plurality of radial strip-shaped reinforcing ribs.

[0024] Preferably, the upper connecting corner box 2 comprises an upper bottom plate 23, an upper connecting corner box upper edge strip 22 vertically connected to the upper edge of the upper bottom plate 23, and an upper connecting corner box side edge strip 21 vertically connected to the side edge of the upper bottom plate 23. The upper bottom plate 23 is fixedly connected to the upper half of the wing rib 4, the upper connecting corner box upper edge strip 22 is fixedly connected to the upper edge strip 11 of the beam, and the upper connecting corner box side edge strip 21 is fixedly connected to the web 12 of the beam.

[0025] Preferably, the lower connecting corner box 3 comprises a lower bottom plate 33, a lower connecting corner box lower edge strip 32 vertically connected to the lower edge of the lower bottom plate 33, and a lower connecting corner box side edge strip 31 vertically connected to the side edge of the lower bottom plate 33. The lower bottom plate 33 is fixedly connected to the lower half of the wing rib 4, the lower connecting corner box lower edge strip 32 is fixedly connected to the lower edge strip 13 of the beam, and the lower connecting corner box side edge strip 31 is fixedly connected to the web 12 of the beam.

[0026] Preferably, the upper connecting corner box upper edge strip 22 and the upper connecting corner box side edge strip 21 are connected through a rounded corner transition.

[0027] Preferably, the lower connecting corner box lower edge strip 32 and the lower connecting corner box side edge strip 31 are connected through a rounded corner transition.

[0028] Preferably, the web 12 of the beam is perpendicular to the wing rib 4.

[0029] Preferably, the beam 1 is made of composite material.

[0030] Preferably, there is a gap between the lower connecting corner box 3 and the upper connecting corner box 2.

[0031] The advantages of the present application include that the web is divided into upper and lower parts, which can reduce the matching difficulty between the wing rib struts and the composite beam and ensure the matching relationship between the wing rib and the composite beam.

[0032] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application can be easily thought of by those skilled in the art, which should be covered in 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. A composite beam and rib attachment structure, characterized by, The utility model relates to a kind of wing ribs and connecting angle boxes of composite wing beam, including: Beam (1), wing rib (4), connecting angle box; Beam (1) includes beam web (12), beam upper edge strip (11) and beam lower edge strip (13); Connecting angle box includes upper connecting angle box (2) and lower connecting angle box (3), and upper connecting angle box (2) is connected with the upper half of beam web (12), beam upper edge strip (11) and the upper half of wing rib (4); Lower connecting angle box (3) is connected with the lower half of beam web (12), beam lower edge strip (13) and the lower half of wing rib (4).

2. The composite beam and rib attachment structure of Claim 1, wherein, Upper connecting angle box (2) includes upper bottom plate (23), upper connecting angle box upper edge strip (22) vertically connected in the upper edge of upper bottom plate (23), upper connecting angle box side edge strip (21) vertically connected in the side of upper bottom plate (23);Upper bottom plate (23) is fixedly connected with the upper half of wing rib (4), upper connecting angle box upper edge strip (22) is fixedly connected with beam upper edge strip (11), and upper connecting angle box side edge strip (21) is fixedly connected with beam web (12).

3. The composite beam-to-rib joint structure of Claim 1, wherein, Lower connecting angle box (3) includes lower bottom plate (33), lower connecting angle box lower edge strip (32) vertically connected in the upper edge of lower bottom plate (33), lower connecting angle box side edge strip (31) vertically connected in the side of lower bottom plate (33);Lower bottom plate (33) is fixedly connected with the lower half of wing rib (4), lower connecting angle box lower edge strip (32) is fixedly connected with beam lower edge strip (13), and lower connecting angle box side edge strip (31) is fixedly connected with beam web (12).

4. The composite beam and rib attachment structure of Claim 2, wherein, Upper connecting angle box upper edge strip (22) and upper connecting angle box side edge strip (21) are connected by round corner transition.

5. The composite beam and rib attachment structure of Claim 3 wherein, Lower connecting angle box lower edge strip (32) and lower connecting angle box side edge strip (31) are connected by round corner transition.

6. The composite beam and rib attachment structure of Claim 1, wherein, Beam web (12) and wing rib (4) are perpendicular.

7. The composite beam and rib attachment structure of Claim 1 wherein, Beam (1) is made of composite material.

8. The composite beam and rib attachment structure of Claim 1 wherein, Lower connecting angle box (3) and upper connecting angle box (2) have gap.

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