JPH04237667A - Joint structure of structure body using blazed aluminum honeycomb panel - Google Patents

Abstract

PURPOSE:To improve the welding workability and strength reliability by welding an edge member having a welded joint part to a contiguous member, to the surface plate part of a panel peripheral edge part and a frame member and welding the contiguous member through the edge member, in the welded joint of a cylindrical structure body such as structure body for rolling stock. CONSTITUTION:A honeycomb core 8 is nipped between two aluminium surface plates 4 and 6, and a frame member 10 is arranged in a peripheral edge part, and blazing-applied to form a standard panel 2. A plurality of standard panels 2 are butt-joined to form a large plate shaped honeycomb panel 12. A rectangular shaped closed sectional surface structure is formed between the frame member 10 and the surface plate parts 4 and 6 at the peripheral edge part of the large plate shaped honeycomb plate 12. An edge member 14 is welding-fixed. At the arm part 18 of the edge member 14, the contiguous member, e.g. the honeycomb panel 12 is welded.

Description

[Detailed description of the invention]

0001

[Technical Field] The present invention relates to a joint structure for a structure using brazed aluminum honeycomb panels, and particularly relates to a welded joint for a cylindrical structure formed by welding brazed aluminum honeycomb panels. .

0002

[Background Art] In recent years, an aluminum honeycomb panel with a sandwich structure, in which a honeycomb-shaped core is sandwiched between two face plates and joined together by brazing, has been developed. Focusing on its lightweight and high strength characteristics, Application to various structures is being considered.

In particular, it is considered desirable to construct a cylindrical structure such as a railway vehicle structure, which is desired to be light in weight to enable higher speeds, using the brazed aluminum honeycomb panel as described above. In order to reduce the weight of the railway vehicle structure, it has traditionally been made of aluminum, but since it has traditionally been made of aluminum extrusions or rolled plate assemblies, there is a limit to reducing the thickness of the extrusions. In addition, when using ultrathin plates obtained by rolling, it is necessary to arrange the aggregate densely, and in any case, there is a limit to the reduction in weight.

[0004] By the way, in order to reduce the weight of such aluminum honeycomb panels, the face plate is made of a plate material as thin as possible. Even if the face plate portions were directly connected by welding, the strength of the welded portions was unreliable, and welding workability was also significantly difficult.

[0005] On the other hand, one of the applicants of the present application previously proposed in Japanese Utility Model Application Publication No. 1-102318, a joint shape material was fitted to the end of an aluminum honeycomb panel, fixed by brazing, and then the joint shape material was inserted through the joint shape material. They revealed a structure in which the honeycomb panels are connected to adjacent honeycomb panels. However, nothing is disclosed therein regarding such aluminum honeycomb panels, especially the structure that enables the installation of reinforcing materials at the joints. Regarding the structure that enables connection to adjacent members of the
There is also an idea disclosed in Publication No. 11837,
Nothing was revealed regarding butt joints.

[0006]

[Problem to be solved] The present invention has been made against the background of the above, and its object is to weld the honeycomb panels in a structure using brazed aluminum honeycomb panels. An effective joint that improves strength and strength reliability, allows for easy placement of reinforcing materials at connection parts, and also allows connection to adjacent members having a height greater than the panel height. It's about providing structure.

[0007]

[Solution] In order to solve this problem, in the present invention, an aluminum honeycomb core is sandwiched between two aluminum face plates, an aluminum frame material is arranged at the peripheral edge, and the face plates are , aluminum honeycomb panels that form a large-area plate-like body are used by butting and joining multiple reference panels in which a honeycomb core and a frame material are brazed together at their opposing ends. In the joint structure of the structure where the aluminum honeycomb panel
The gist of the present invention is a joint structure for a structure using a brazed aluminum honeycomb panel, characterized in that the honeycomb panel is joined to an adjacent member by welding through the weld joint. Furthermore, the present invention provides a joint structure for a structure using the brazed aluminum honeycomb panel, wherein the edge material is shaped to form a closed cross-sectional structure with the frame material.・It also covers the joint structure of structures using honeycomb panels.

[0008]

[Embodiments/Operations] In order to clarify the present invention more specifically, embodiments of the present invention will be described in detail below with reference to the drawings.

First, FIG. 1 shows an exploded example of a reference panel for producing a brazed aluminum honeycomb panel according to the present invention, and FIG. 2 shows a cross-sectional view of such a reference panel. has been done. In those figures, the reference panel 2 has a substantially rectangular flat plate shape, and has a honeycomb-structured core 8 sandwiched between front and back face plates 4 and 6, which are integrally brazed together. A frame member 10 made of extruded material and having a U-shaped cross section is disposed on the (four sides) and are integrally brazed together, so that the end face plate portion to be welded has a It has a structure that is made into meat. The face plates 4, 6, core 8, and frame material 10 are all made of aluminum or an alloy thereof, and are generally made of a band-shaped honeycomb material obtained by corrugating an aluminum brazing sheet. are assembled side by side between the face plates 4 and 6 to give a honeycomb structure, and with frame members 10 arranged around the four peripheries, a plurality of honeycomb forming materials are heated to a temperature higher than the melting temperature of the brazing material. By integrating it with the honeycomb core 8,
The reference panel 2 is completed by integrally brazing the honeycomb core 8, the face plates 4, 6, and the frame members 10 around the four peripheries at the same time.

[0010] A plurality of such reference panels 2 are combined to form a brazed aluminum honeycomb panel as a single large-area plate-like body to construct a target structure. It is.

That is, for example, as shown in FIGS. 3 and 4, a plurality of reference panels 2 (eight in this case) of a predetermined size are butted against each other at their opposing ends, and as shown in FIG. As shown, the end face plate portion (
4, 6) and the U-shaped ends of the frame material (10) are welded together to form a large honeycomb panel 12 with an even larger area.

By the way, in a structure constructed using such a large honeycomb panel 12, for example, in the case of a railway vehicle structure, the honeycomb panel 12 has a large area such as 2 m x 6 m. Since the honeycomb panel 12 is used as a plate-like body, it is necessary to appropriately arrange aggregate as a reinforcing material for supporting the honeycomb panel 12 in such a structure. Therefore, honeycomb panel (12)
In the case where the is simply composed of the reference panel 2,
Placing such aggregates on the panel surface made of thin face plates makes it difficult to ensure strength and welding reliability, and it is difficult to arrange the aggregates on the panel surface made of thin face plates. Even if aggregate is disposed between the honeycomb panels, it is difficult to butt and join the ends of the honeycomb panel directly to the aggregate having a height greater than the height of the panel. Furthermore, simultaneously brazing frame members having a height greater than the height of the panel would complicate the design of the jig and would be industrially impossible.

Therefore, in the present invention, in the honeycomb panel 12 shown in FIGS. 3 and 4, as shown in FIG. and the frame material (10), the frame material (
10), an edge material 14a made of an extruded aluminum material forming a rectangular box-shaped closed cross-sectional structure is welded and fixed. That is, this edge material 14a has a U-shaped cross-section portion 16 that is connected to the honeycomb panel 1.
The face plate portions (4, 6) located at the peripheral edge of 2 and the U-shaped frame member 10 are welded to form a strong box-shaped closed cross-sectional structure. part 1
At the end of the arm 18 extending outwardly from 6, it is welded to an adjacent member (eg, another honeycomb panel) for connection. Therefore, in a joint structure provided with such a rim member 14a, aggregate such as a Z-shaped member is not used in the box-shaped closed section structure formed between the rim member 14a and the frame member 10. It can be arranged advantageously.

Furthermore, as shown in FIG. 7, a border material 14b having a height higher than that of the honeycomb panel 12 corresponding to the height of the aggregate, which is an adjacent member, is used to form a U-shaped portion 16. By welding the end face plate portions (4, 6) of the honeycomb panel 12 and the frame material 10 to form a similar box-shaped closed cross-sectional structure, strength reliability at the joint portion can be sufficiently ensured. At the same time, the desired aggregate is added to the honeycomb panel 12.
It can be advantageously placed at the end of the.

In short, as mentioned above, aluminum
A predetermined edge material 14a or 14b is welded and fixed to the peripheral edge of the honeycomb panel 12, and a closed cross section is created between the face plate portions (4, 6) located at the peripheral edge of the honeycomb panel 12 and the frame material 10. If the honeycomb panel 12 is connected to the adjacent member by welding through the edge material 14a or 14b, using the edge material 14a or 14b,
This allows the reinforcing material to be placed advantageously, and the welding to the adjacent member can be carried out on the edge material 14a or 14b.
Since the honeycomb panel is not directly welded to an adjacent member, it is possible to advantageously improve welding workability and strength reliability.

Further, FIGS. 8 to 13 show an example of a railway vehicle structure which is a cylindrical structure to which the present invention is suitably applied. That is, in FIG. 8, a vehicle roof portion 20 and vehicle side wall portions 22, 22 are respectively formed by combining various types of brazed aluminum honeycomb panels 12 in order to construct the intended railway vehicle structure. In addition, 2
Reference numeral 4 denotes windows provided at a suitable number of locations on the honeycomb panel 12 constituting the vehicle side wall portion 22. In addition, FIG. 9 shows the components that are combined as shown in FIG. 8 above to form a vehicle structure.
The arrangement structure of aggregate as a reinforcing member that supports the honeycomb panel 12 is shown, in which 26 is an eave girder as a girder material, and 28 is a length corresponding to a lower frame support beam. The eave beams 26 and the long foundations 28 also function as joints. Further, 30 is a reinforcing rib provided at the connection portion between the aluminum honeycomb panels 12, and 32 is an intermediate rib that is appropriately erected and arranged on each honeycomb panel 12. In addition, such eave girders 26, long foundations 28, reinforcing ribs 30
Both of the intermediate ribs 32 and 32 are made of extruded aluminum.

In this way, the combination of aluminum honeycomb panels 12 as shown in FIG. 8 is supported in the aggregate arrangement configuration as shown in FIG.
In the vehicle structure formed by the structure, the honeycomb panel 1
The second joint portion has the form shown in FIGS. 11 and 12. In short, FIG. 11 shows the honeycomb panel 1
This shows the connection structure between the two, which is shown in Figure 10.
It will be completed after passing through the form shown in . That is,
As shown in FIG. 10, the arm portion 18 of the edge material 14a provided at the peripheral edge of the aluminum honeycomb panel 12 is attached to the other aluminum honeycomb panel 1, which is an adjacent member.
After abutting against the arm part 18 of the edge material 14a provided on the peripheral edge of each honeycomb panel 1 and welding it, each honeycomb panel 1
On the box-shaped closed cross-section structure (frame material 10 + U-shaped portion 16) formed at the peripheral edge of parts 2 and 12, a Z-shaped material serving as a reinforcing member is placed.
Welded and fixed using the fillet welding method,
By erecting the aluminum honeycomb panels 12, 34 and welding the abutting portions of the Z-shaped members 34, 34 to form a strong closed cross-section structure, a strong reinforcing rib 30 is formed at the connecting portion of the aluminum honeycomb panels 12, 12. be. Further, the Z-shaped members 34, 34 constituting the reinforcing ribs 30 are welded and fixed to the honeycomb panel 12.
Since the welding is performed on a rectangular closed cross-sectional structure composed of the frame material 10 and the U-shaped portion 16 of the edge material 14a formed on the peripheral edge of the welding material, sufficient welding strength is ensured and Since the welding is performed on a thick part, welding workability is also significantly improved.

[0018] Also, aluminum honeycomb panel 12
When connecting the eaves beams 26 to the eaves beams 26, since the height of the eave beams 26 is generally higher than the honeycomb panel 12, as shown in FIG. The edging material 14b corresponding to the height of the eave girder 26 is fixed by welding, and the edging material 1 with this high height is
4b, the eaves beams 26 are welded, thereby making it possible to effectively connect the honeycomb panel 12 to the eave beams 26 of different heights.

Furthermore, on the surface of the honeycomb panel 12 constituting the vehicle structure, a Z-shaped member 32, which also functions as a reinforcing member, is provided as an intermediate rib so as to extend in the transverse direction of the vehicle. However, such a Z-shaped member 32 is
As shown in FIG. 13, a U-shaped frame member 1 is formed at the connecting portion between the reference panels 2 that constitute the honeycomb panel 12.
If fillet welding is performed on a box-shaped (rectangular) closed cross-sectional structure consisting of 0 and the structure is installed vertically, fillet welding with good workability can be realized, and a structure with a strong cross-section can be realized. You get it.

Although the embodiments of the present invention have been described in detail above, the present invention is not to be construed as being limited to such specific examples, and the present invention shall not depart from the spirit of the present invention. Various modifications, changes, improvements, etc. can be made to the above based on the knowledge of those skilled in the art, and
It should be understood that all such embodiments fall within the scope of the present invention.

For example, in the present invention, the shape of the frame material brazed to the peripheral edge of the reference panel forming the brazed aluminum honeycomb panel (see Utility Model Publication No. 1-102318)
It goes without saying that various shapes may be employed in addition to those shown in the examples as to the shape of the edge material to be welded to the peripheral edge of the honeycomb panel of such a frame material.

[0022]

[Effects of the Invention] As is clear from the above explanation, according to the joint structure of a structure using brazed aluminum honeycomb panels according to the present invention, there is a strong connection between the honeycomb panel and the frame provided at the peripheral edge. Since such honeycomb panels are welded and connected to adjacent members through edge members forming a closed cross-sectional structure, welding workability and strength reliability can be advantageously improved, and such By using the edge material, the reinforcing member can be advantageously arranged, and it can also be advantageously connected to an adjacent member whose height is higher than the honeycomb panel.

[Brief explanation of the drawing]

FIG. 1 is an exploded view showing an example of a reference panel for providing a brazed aluminum honeycomb panel according to the present invention.

FIG. 2 is an explanatory cross-sectional view of the reference panel shown in FIG. 1;

FIG. 3 is a plan view showing an example of a brazed aluminum honeycomb panel used in the present invention.

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is an enlarged explanatory view of the V-V cross section in FIG. 3;

FIG. 6 is an enlarged explanatory view of a VI-VI cross section in FIG. 3;

FIG. 7 is an enlarged cross-sectional explanatory view corresponding to FIG. 6, in which edge members of different shapes are fixed by welding.

FIG. 8 is an explanatory diagram showing a combination of brazed aluminum honeycomb panels in a railway vehicle structure to which the present invention is applied.

9 is an explanatory diagram showing the arrangement of aggregates that support the brazed aluminum honeycomb panels that constitute the railway vehicle structure shown in FIG. 8. FIG.

10 is an explanatory cross-sectional view showing a state in which edge materials at the ends of each honeycomb panel are welded together when the brazed aluminum honeycomb panels in FIG. 8 are connected to each other; FIG.

FIG. 11 shows the structure of the connection between brazed aluminum honeycomb panels;
It is a figure corresponding to the XI cross section.

12 is a view corresponding to the XII-XII cross section in FIG. 8, showing the structure of the connection between the brazed aluminum honeycomb panel and the eave girder that constitute the vehicle roof in FIG. 8; FIG.

FIG. 13 explains the arrangement of the intermediate ribs shown in FIG. 9 on the surface of the brazed aluminum honeycomb panel;
9 is a diagram corresponding to the XIII-XIII cross section in FIG. 8. FIG.

[Explanation of symbols]

2 Reference panel 4,6
Face plate 8 Honeycomb core
10 Frame material 12 Brazed aluminum honeycomb panels 14a, 14b Edge material 16
U-shaped cross section 18 Arm part
20 Vehicle roof portion 22 Vehicle side wall portion
24 Window part 26 Eave girder
28 long base 30
Reinforcement rib 32 Intermediate rib 34 Z-shaped material

Claims (2)

[Claims] Claim 1: A standard in which an aluminum honeycomb core is sandwiched between two aluminum face plates, an aluminum frame is placed around the periphery, and the face plate, honeycomb core, and frame are brazed together. In a joint structure of a structure using an aluminum honeycomb panel that forms a large-area plate-like body by butting and joining a plurality of panels at their opposing ends, the peripheral edge of the aluminum honeycomb panel Weld and fix the edge material with a welded joint to the adjacent member to the face plate portion and frame material located at the aluminum.
A joint structure for a structure using a brazed aluminum honeycomb panel, characterized in that the honeycomb panel is joined to an adjacent member by welding through the weld joint portion. [Claim 2] The brazed aluminum according to claim 1.
A joint structure for a structure using a honeycomb panel, wherein the edge material is shaped to form a closed cross-sectional structure with the frame material.A joint structure for a structure using a brazed aluminum honeycomb panel. .