CN207292369U - A kind of aircraft conversion deckle board - Google Patents

Abstract

The utility model provides an aircraft refitting frame plate, comprising a wall plate (1) and a frame plate attached to the inner side of the wall plate (1), the frame plate is composed of an upper half reinforcing frame (2), a lower half reinforcing frame (4 and a connecting piece (3) between the two, wherein the two end faces of the lower half of the reinforcement frame (4) are arranged parallel to each other, and one end end face is attached to the aircraft floor, and the position of the other end end face is determined according to the stress of the frame plate. And the parts are convenient to enter and exit the cabin door, which is convenient for assembly and selection. The lower half of the reinforcement frame (4) is pushed in laterally from the inside of the fuselage along the floor of the aircraft and is connected to the upper half of the reinforcement frame (2) through the connecting piece (3). The aircraft refitting frame plate provided by the utility model uses the horizontal separation surface to push the reinforcement frame sideways without adding auxiliary or secondary cutting surfaces, does not affect the original structure of long trusses and accessories, and does not need to destroy the wall plate to change Pneumatic shape and additional tooling, low cost, simple and easy to implement, and not easy to damage.

Description

An aircraft modification frame plate

technical field

The utility model belongs to the field of aircraft structure design, in particular to an aircraft modification frame plate.

Background technique

One kind of aircraft modification is to modify the old aircraft that has been flying for many years, and the other is to modify and design a new aircraft on the aircraft that has been finalized or obtained the airworthiness certificate, that is, the basic aircraft. Special aircraft are generally refitted on mature platforms, which can reduce risks and shorten the development cycle. For the modification of the fuselage structure, it is not necessary to disassemble the original wall plate, so as to avoid the increase of the resistance of the aerodynamic shape, the decrease of performance and the need for a large number of molds, which will increase the cost. How to assemble the reinforced frame in the near-circular fuselage, such as the whole machine The added frame plate, if the decomposition surface is not obtained well, it will cause the newly processed frame to fail to assemble.

Utility model content

The purpose of this utility model is to provide an aircraft refitting frame plate, which overcomes or alleviates at least one of the above-mentioned defects of the prior art.

The purpose of the utility model is achieved through the following technical solutions: an aircraft refitting frame plate, including a wall plate and a frame plate attached to the inner side of the wall plate, the frame plate consists of an upper half reinforcement frame, a lower half reinforcement frame and a The two end faces of the lower half of the reinforcement frame are arranged parallel to each other, and one end end face is arranged in close contact with the aircraft floor, and the position of the other end end face is selected according to the stress of the frame plate and the convenience of parts entering and leaving the cabin door, which is convenient for assembly. The lower half of the reinforcement frame is pushed in laterally from the inside of the fuselage along the floor of the aircraft and connected to the upper half of the reinforcement frame through the connecting piece.

Preferably, the plane of contact between the upper half of the reinforcing frame and the connecting piece is parallel to the floor of the aircraft.

The beneficial effect of the aircraft refitting frame plate provided by the utility model is that, on the premise of satisfying the structural integrity, the structure is simple, and the separation surface division of the frame plate is easy to realize, so that the reinforced frame plate can enter the frame plane assembly without Affecting the original structure of long trusses and accessories, there is no need to destroy the wall panels to change the aerodynamic shape and add tooling, low cost, simple and easy to implement, and not easy to damage.

Description of drawings

Fig. 1 is the structural representation of the modified frame plate of the utility model aircraft;

Reference signs:

1-wall panel, 2-upper half reinforcement frame, 3-connection plate, 4-lower half reinforcement frame.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model more clear, the technical solution in the utility model embodiment will be described in more detail below in conjunction with the accompanying drawings in the utility model embodiment. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some embodiments of the present utility model, but not all embodiments. The embodiments described below with reference to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Below in conjunction with accompanying drawing, the aircraft modification frame plate of the present utility model is described in further detail.

As shown in Figure 1, a frame panel for aircraft modification includes a panel 1 and a panel attached to the inside of the panel 1, the frame panel consists of an upper half reinforcement frame 2, a lower half reinforcement frame 4 and a frame for docking the two. The connector 3 constitutes. For the assembly of aircraft modified reinforcement frames, if the traditional normal direction is used for docking, the frame cannot be pushed into the plane from the front and rear due to the obstruction of long girders and accessories in the fuselage cabin. The highest point where the line separates cannot be entered. Furthermore, a horizontal separation surface is used, and the end faces of the two ends of the lower half of the reinforcement frame 4 are arranged parallel to each other, and one end end face is arranged to be attached to the aircraft floor, and the position of the other end end face is selected according to the stress condition of the frame plate and the convenience of the parts entering and leaving the cabin door. The half-reinforcement frame 4 is pushed in laterally from the inside of the fuselage along the aircraft floor and connected to the upper half-reinforcement frame 2 through the connecting piece 3, wherein the contact plane between the upper half-reinforcing frame 2 and the connecting piece 3 is also arranged parallel to the aircraft floor .

Introduce below the assembling steps of the utility model aircraft modification frame plate.

Firstly, the plane where the frame plate is in contact with the floor is taken as the lower separation surface, and the place where the stress level of the frame plate is low and easy to assemble and parts enter and exit the hatch is taken as the upper separation surface, and the upper separation surface is set parallel to the axis of the floor. Keep the assembly gap well, and then go to CNC for respective processing, surface treatment, non-destructive testing, etc., and clean up the girders and accessories where the frame plate enters. Next, push in each segment of the reinforcing frame laterally from the inside of the fuselage along the floor, position and fix it. Finally, the connecting piece 3 is used to connect the upper and lower reinforcement frames together to ensure the connection strength and make it a complete frame plate.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Any skilled person familiar with the technical field can easily think of changes within the technical scope disclosed by the utility model Or replacement, all should be covered within the scope of protection of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (2)

1. a kind of aircraft conversion deckle board, it is characterised in that including siding (1) and fit in deckle board on the inside of siding (1), the frame Plate is formed by upper half reinforcing frame (2), lower half reinforcing frame (4) and positioned at connector (3) between the two, wherein the lower half adds Strong frame (4) both ends end face is arranged in parallel, and one end end face is bonded setting with airplane floor, the other end face position according to Deckle board stress situation and part disengaging hatch door is convenient is beneficial to assembling and chooses, the lower half reinforcing frame (4) is along airplane floor from fuselage Medial side is pushed into and is connected to each other by connector (3) and the upper half reinforcing frame (2).

2. aircraft conversion deckle board according to claim 1, it is characterised in that the upper half reinforcing frame (1) and the connection Part (3) contact plane is parallel with airplane floor.