CN205291767U - Damaged combined material foamed sandwich structure's mounting - Google Patents

Abstract

The utility model discloses a damaged combined material foamed sandwich structure's mounting belongs to aircraft structural design field for compound material foamed sandwich structure (2) to the damage are fixed, the mounting includes reinforcement piece (2) and connecting piece (3), reinforcement piece (2) cover the damaged department of compound material foamed sandwich structure (1) to it fixes reinforcement piece 2 on compound material foamed sandwich structure (1) to pass through connecting piece (3) at the both ends of damage department. This damaged combined material foamed sandwich structure's mounting has solved the strength reduction problem that sandwich structure brought because of coming unstuck, satisfies the strength requirement of repairing back sandwich structure, reduces and repairs the degree of difficulty, has subtracted the repair time, improves maintenance efficiency. Have great economy and social value, guaranteed the intensity after combined material foamed sandwich structure repairs.

Description

A kind of fixture of damaged Foam Core Sandwich Structure

Technical field

This utility model belongs to field of airplane structure, is specifically related to the fixture of a kind of damaged Foam Core Sandwich Structure.

Background technology

At present, Foam Core Sandwich Structure is a kind of high structure efficiency structure with high rigidity/weight ratio, applies widely in fields such as Aeronautics and Astronautics, automobile, steamers and weight loss effect is obvious. But, Foam Core Sandwich Structure easily produces layering, degumming equivalent damage in manufacture, use procedure, has had a strong impact on the performances such as the intensity of structure, rigidity and fatigue. Additionally, due to damage location in sandwich, the restriction of the conditions such as repairing time, working place and process facility, the material foams sandwich after repairing is unstable.

Utility model content

In order to solve the problems referred to above, the utility model proposes the fixture of a kind of damaged Foam Core Sandwich Structure, damaged multiple material foamed sandwich structure is fixed, including reinforcing chip and connector, described reinforcing chip covers the breakage of described multiple material foamed sandwich structure, and is fixed on multiple material foamed sandwich structure by reinforcing chip by connector at the two ends of breakage.

Preferably, described reinforcing chip is platy structure.

In such scheme preferably, described reinforcing chip is metal material.

In such scheme preferably, described reinforcing chip is aluminium alloy.

In such scheme preferably, the size of described reinforcing chip is not less than the size of described multiple material foamed sandwich structure breakage.

In such scheme preferably, described connector is the one in bolt, rivet.

, described reinforcing chip includes at least two pieces in such scheme preferably, is separately positioned on the both sides of described multiple material foamed sandwich structure.

, between described reinforcing chip and described multiple material foamed sandwich structure, it is marked with alite paste in such scheme preferably, or, the injury region of described multiple material foamed sandwich structure is marked with alite paste.

The fixture of this breakage Foam Core Sandwich Structure, solves the intensity reduction problem that sandwich is brought because of degumming, meets the requirement of strength of sandwich after repairing, reduce and repair difficulty, subtracted repairing time, raising maintenance efficiency. There is bigger economy and social value, it is ensured that the intensity after Foam Core Sandwich Structure repairing.

Accompanying drawing explanation

Fig. 1 is the structural representation of a preferred embodiment of the fixture of this utility model breakage Foam Core Sandwich Structure.

Wherein, 1 is multiple material foamed sandwich structure, and 2 is reinforcing chip, and 3 is connector.

Detailed description of the invention

For the purpose making this utility model implement, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is further described in more detail. In the accompanying drawings, same or similar label represents same or similar element or has the element of same or like function from start to finish. Described embodiment is a part of embodiment of this utility model, rather than whole embodiments. The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model. Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection. Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that restriction to this utility model protection domain.

This utility model provides the fixture of a kind of damaged Foam Core Sandwich Structure, damaged multiple material foamed sandwich structure 1 is fixed, as shown in Figure 1, including reinforcing chip 2 and connector 3, described reinforcing chip 2 covers the breakage of described multiple material foamed sandwich structure 1, and is fixed on multiple material foamed sandwich structure 1 by reinforcing chip 2 by connector 3 at the two ends of breakage.

In the present embodiment, described reinforcing chip 2 is platy structure, and with reference to Fig. 1, it covers on the upper and lower surfaces of described multiple material foamed sandwich structure 1, and described upper and lower surface can cover the breakage of the multiple material foamed sandwich structure 1 of inside just.

It is understandable that, described reinforcing chip 2 is metal material, and multiple material foamed sandwich structure is had booster action, it is to avoid because integrally-built intensity etc. is produced impact by the breakage of multiple material foamed sandwich structure, in an alternate embodiment, described reinforcing chip 2 is aluminium alloy, and aluminium alloy density is low, but strength ratio is higher, near or above high-quality steel, plasticity is good, can be processed into various section bar, has excellent electric conductivity, heat conductivity and corrosion stability.

In the present embodiment, the size of described reinforcing chip 2 is not less than the size of described multiple material foamed sandwich structure 1 breakage. Described connector 3 is the one in bolt, rivet, with reference to Fig. 1, the reinforcing chip 2 of two tabulars aligns respectively and is arranged on the both sides up and down of multiple material foamed sandwich structure 1, bolt (or from bottom to top) from top to bottom is through a reinforcing chip 2, multiple material foamed sandwich structure 1, another reinforcing chip 2, and tightens. In an alternate embodiment, described fixture includes four bolts, is separately positioned on four angles of multiple material foamed sandwich structure 1, forms tetragon, and the breakage of multiple material foamed sandwich structure 1 is located exactly at the center of tetragon.

In the present embodiment, between described reinforcing chip and described multiple material foamed sandwich structure, it is marked with alite paste, or, the injury region of described multiple material foamed sandwich structure is marked with alite paste. This utility model, is first layered or debonding damage position injecting glue at multiple material foamed sandwich structure 1, secondly, adopts connector 3 that reinforcing chip 2 is fixed on sandwich panel both sides in the outside of multiple material foamed sandwich structure 1 damage location.

The fixture of this breakage Foam Core Sandwich Structure, solves the intensity reduction problem that sandwich is brought because of degumming, meets the requirement of strength of sandwich after repairing, reduce and repair difficulty, subtracted repairing time, raising maintenance efficiency. There is bigger economy and social value, it is ensured that the intensity after Foam Core Sandwich Structure repairing.

Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit. Although this utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of this utility model.

Claims (8)

1. the fixture of a damaged Foam Core Sandwich Structure, damaged multiple material foamed sandwich structure (2) is fixed, it is characterized in that: include reinforcing chip (2) and connector (3), described reinforcing chip (2) covers the breakage of described multiple material foamed sandwich structure (1), and is fixed on multiple material foamed sandwich structure (1) by reinforcing chip 2 by connector (3) at the two ends of breakage.

2. the fixture of damaged Foam Core Sandwich Structure as claimed in claim 1, it is characterised in that: described reinforcing chip (2) is platy structure.

3. the fixture of damaged Foam Core Sandwich Structure as claimed in claim 1, it is characterised in that: described reinforcing chip (2) is metal material.

4. the fixture of damaged Foam Core Sandwich Structure as claimed in claim 3, it is characterised in that: described reinforcing chip (2) is aluminium alloy.

5. the fixture of the damaged Foam Core Sandwich Structure as according to any one of claim 1-4, it is characterised in that: the size of described reinforcing chip (2) is not less than the size of described multiple material foamed sandwich structure (1) breakage.

6. the fixture of Foam Core Sandwich Structure as claimed in claim 1 damaged, it is characterised in that: described connector (3) is bolt, one in rivet.

7. the fixture of damaged Foam Core Sandwich Structure as claimed in claim 1, it is characterised in that: described reinforcing chip (2) includes at least two pieces, is separately positioned on the both sides of described multiple material foamed sandwich structure (1).

8. the fixture of damaged Foam Core Sandwich Structure as claimed in claim 7, it is characterized in that: between described reinforcing chip (2) and described multiple material foamed sandwich structure (1), be marked with alite paste, or, the injury region of described multiple material foamed sandwich structure (1) is marked with alite paste.