CN211543861U - Load diffusion piece connected with wing spar - Google Patents

Abstract

The utility model belongs to the field of aircraft structure design, and in particular relates to a load diffuser connected with a wing spar; the utility model comprises a diffuser a (3), a diffuser b (4); the right side of the diffuser a (3), the wing The rib (5) and the left side of the diffuser b (4) are fixedly connected by bolts, the left side of the diffuser a (3) is fixedly connected to the rear beam (2), and the right side of the diffuser b (4) is connected to the rear beam ( 2) Fixed connection, the cross section of the formed component is triangular. In the case of limited structural space, size and position constraints, the load diffuser is designed as a triangular assembly, two ends of the triangle are connected with beams and suspension arms, and the other end is connected with ribs; in order to reduce the weight, the web of the diffuser is designed Holes and reinforcements. This form of diffuser connects the suspension arm, the beam, the wall plate and the rib, which ensures the effective transmission of the load to the wall plate and the rib. The design has high force transmission efficiency, light weight, and meets assembly requirements.

Description

A load spreader connected with a wing spar

technical field

The utility model belongs to the field of aircraft structure design, in particular to a load diffusion member connected with a wing spar.

Background technique

The aircraft is equipped with flaperon suspension arms, which are generally connected to the rear beam of the wing. For the rear beam, in order to diffuse this concentrated load, it is necessary to strengthen the beam locally, such as adding a diffusion angle box on the inner side of the beam or connecting it with the inner rib of the box section. However, some suspension arms are larger in size and larger in span, which requires a corresponding increase in the size of the diffuser of the beam, increasing the number of parts, and increasing the weight.

SUMMARY OF THE INVENTION

The purpose of the utility model is to optimize the structure form and reduce the weight of the structure under the premise of satisfying the requirements of the diffusion concentrated load.

The technical solution of the present utility model: a load diffusing member connected to the wing spar, which is characterized in that it includes a diffusing member a3, a diffusing member b4; the right side of the diffusing member a3, the wing rib 5, and the left side of the diffusing member b4 The surfaces are fixedly connected by bolts, the left side of the diffuser a3 is fixedly connected to the rear beam 2, and the right side of the diffuser b4 is fixedly connected to the rear beam 2, forming a triangular cross-section of the assembly.

The diffuser a3 and the diffuser b4 are plate-like structures with rectangular holes in the middle.

The upper and lower ends of the rectangular holes of the diffuser a3 and the diffuser b (4) are respectively provided with a rectangular groove.

A corner of the right side of the diffuser a3 and the right side of the diffuser b4 is a trapezoidal surface.

Reinforcing ribs are added to the vertical direction of the sides of the rectangular holes in the middle of the diffuser a3 and the diffuser b4.

The reinforcing rib is close to one end of the diffuser a3, the diffuser b4 and the rib 5 connected.

The beneficial effects of the utility model are as follows: under the circumstance of limited structural space and constraints of size and position, the load diffuser is designed as a triangular assembly, the two ends of the triangle are connected with the beam and the suspension arm, and the other end is connected with the rib; The weights are perforated and reinforced in the diffuser web. This form of diffuser connects the suspension arm, the beam, the wall plate and the rib, which ensures the effective transmission of the load to the wall plate and the rib. The design has high force transmission efficiency, light weight, and meets assembly requirements.

Description of drawings

Fig. 1 is the structural representation of the utility model

Figure 2 is a schematic diagram of the assembled state of the utility model

Detailed ways

Below in conjunction with accompanying drawing, the present invention is further described:

As shown in Figures 1 and 2, a load diffuser connected to a wing spar includes a diffuser a3 and a diffuser b4; the right side of the diffuser a3, the rib 5, and the left side of the diffuser b4 pass through Bolt fixed connection, the left side of the diffuser a3 is fixedly connected to the rear beam 2, the right side of the diffuser b4 is fixedly connected to the rear beam 2, and the cross-section of the formed component is a triangle. The diffuser a3 and the diffuser b4 are plate-like structures, with a rectangular hole in the middle, four walls are formed on the four sides, and a rectangular slot is set at the upper and lower ends of the middle rectangular hole to transmit the load of the suspension arm 1; The corners of the right side of the diffuser a3 and the right side of the diffuser b4 are trapezoidal surfaces, so that the connection between the right side of the diffuser a3, the rib 5 and the diffuser b4 is more suitable; the middle of the diffuser a3 and the diffuser b4 is rectangular A reinforcing rib is added in the vertical direction of the hole edge, and the reinforcing rib is close to the end where the diffuser a3, the diffuser b4 and the rib 5 are connected.

Claims (6)

1. A load diffuser connected with a wing spar, characterized in that it comprises diffuser a (3), diffuser b (4); the right side of diffuser a (3), a wing rib (5), The left side of the diffuser b (4) is fixedly connected by bolts, the left side of the diffuser a (3) is fixedly connected to the rear beam (2), and the right side of the diffuser b (4) is fixedly connected to the rear beam (2), The cross-section of the resulting assembly is triangular. 2 . The load diffuser connected to the wing spar according to claim 1 , wherein the diffuser a ( 3 ) and the diffuser b ( 4 ) are plate-like structures with rectangular holes in the middle. 3 . 3 . The load diffuser connected to the wing spar according to claim 1 , wherein the upper and lower ends of the rectangular holes of the diffuser a ( 3 ) and the diffuser b ( 4 ) are each provided with a rectangular slot. 4 . 4 . The load diffuser connected to the wing spar according to claim 1 , wherein the corners of the right side of the diffuser a ( 3 ) and the right side of the diffuser b ( 4 ) are trapezoidal surfaces. 5 . 5 . The load diffuser connected to the wing spar according to claim 1 , characterized in that reinforcing ribs are added in the vertical direction of the sides of the rectangular holes in the diffuser a ( 3 ) and the diffuser b ( 4 ). 6 . 6 . The load diffuser connected to the wing spar according to claim 5 , wherein the reinforcing rib is close to one end of the diffuser a ( 3 ), the diffuser b ( 4 ) and the rib ( 5 ). 7 .

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