JPH0680079A - Bogie frame for superconductive, magnetic levitation - Google Patents

Abstract

PURPOSE:To improve the strength of a bracket for supporting air spring to a side beam, light the weight, and simply the attachment in a bogie frame for superconductive, magnetic levitation. CONSTITUTION:A box girder which is formed by assembled aluminum alloy honeycomb panels into a box shape in its section is defined to a side beam 1. Similarly a bracket 6 whose base material is aluminum alloy honeycomb panel is attached to a side beam side face via a dolly block or corner hardwares 14 so as to constitute a bogie frame Therefore the bogie frame has high strength and is light-weighted because of being constituted of aluminum alloy honeycomb panels.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bogie frame for both railroad passengers, and more particularly to a bobbin frame for magnetic levitation in which honeycomb panels made of aluminum alloy are assembled to reduce the weight.

[0002]

2. Description of the Related Art A bogie frame for a railway vehicle is shown in FIG. 5, which is a hollow square tube made of cast steel or a box girder of a square tube in which two materials obtained by press-forming a steel plate into a U shape are welded in a box shape. It is assembled and configured like an Izutsu.

Recently, however, a magnetic levitation railway has been put into practical use, and a bogie frame used for the magnetic levitation railway is being made of an aluminum alloy in order to reduce its weight.

As shown in FIG. 6, a bogie used for a magnetic levitation railway is composed of an upper bogie frame as a device frame for supporting on-vehicle equipment and a lower bogie frame for supporting a superconducting magnet (hereinafter referred to as SCM). The lower bogie frame and the upper bogie frame are supported by air springs, and the side beams are integrally provided with the bracket side beams that support the air springs as shown in FIG. Then, these bogie frames are about to be made of an aluminum alloy material in order to reduce the weight.

[0005]

That is, even if the bogie frame used in the magnetically levitated linear motor car, which is currently being put into practical use, is made of an aluminum alloy, it still has a weight problem and is further lightweight. Consideration is being made.

Therefore, a honeycomb structure used in aircraft, that is, an aluminum honeycomb material has been nominated as a candidate. However, since the conventional aluminum honeycomb is a bonded honeycomb in which corrugated plate materials are bonded with an adhesive, even when formed into a panel. It has the drawback that it cannot be welded and cannot be used for members requiring strength.

Therefore, the present invention has been made in view of such drawbacks of the prior art, and it is an object of the present invention to provide a bogie frame having a structure which is lightweight and has a good workability (weldability, etc.). It is a thing.

[0008]

Means for Solving the Problems As a result of extensive studies to achieve the above object, a bracket support member for supporting an air spring provided on a side beam is laminated with an aluminum alloy brazed honeycomb panel (hereinafter simply referred to as a honeycomb panel). The present invention has been completed based on the finding that the use of a body facilitates welding and bonding, realizes weight reduction, and can use a honeycomb panel as a strength member.

That is, the gist of the present invention is to provide a cross section of a honeycomb panel in a bogie frame of a magnetic levitation bogie constituted by connecting a pair of left and right side beams and transverse beams orthogonal to the opposite side surfaces of the side beams. A box girder assembled in a box shape is used as a side beam, and a plurality of aluminum alloy hollow members are attached orthogonally to the side beams on the opposite side surfaces of the pair of left and right side beams corresponding to the superconducting magnet mounting positions. Further, a bogie frame for superconducting magnetic levitation, in which a bracket support member for supporting an air spring in which honeycomb panels are laminated is provided on a side surface of the side beam is defined as a first invention, and a honeycomb panel is used as a base material, A bracket support member composed of aluminum alloy reinforcement plates, honeycomb panel sub-base materials, and reinforcement plates laminated on both sides is attached to the side beam side face via a metal fitting and triangular corner metal fittings. The conductive magnetic levitation bogie frame in which the second invention.

[0010]

In the bogie frame for a magnetically levitated vehicle constructed as described above, a box girder assembled with honeycomb panels in a box-shaped cross section serves as a side beam, and an aluminum alloy cylindrical material or square tubular material serves as a lateral beam. Since a plurality of brackets are attached to the side beams corresponding to the SCM attachment positions so as to be orthogonal to the side beams, and a bracket support member in which a plurality of honeycomb panels are laminated is attached to the side beams, welding work is facilitated. The strength and rigidity are high, and the SCM mounting part can be reinforced with a horizontal beam, and the bogie frame is lightweight.

[0011]

EXAMPLES Examples will be described with reference to the drawings. Embodiment 1 FIG. 1 is a perspective view of a bogie frame for a magnetically levitated vehicle according to the present invention, and FIG.
Reference numerals a and 2b show partial sectional views of a bracket for supporting an air spring interposed between the SCM support frame and the equipment frame. The bracket 6 includes a honeycomb panel 7 as a base material, and a bracket support member 20 formed by laminating an aluminum alloy reinforcing plate 9, a honeycomb panel auxiliary base material 8 and an aluminum alloy reinforcing plate 10 on both sides of the base material, The structure is such that it is attached to the side surface of the side beam through the metal plate 11 and the triangular corner metal fitting 14.

First, a method of manufacturing the honeycomb panel 100 will be described.

A brazing sheet 101 having an aluminum alloy as a core material and a brazing material as a skin material is bent and formed into a trapezoidal corrugation as shown in FIG. The core 110 is manufactured. The honeycomb panel 100 is manufactured by sandwiching the upper and lower surfaces of the honeycomb core 110 between two face plates 120 of an aluminum alloy thin plate material and joining them by brazing.

A honeycomb panel having a desired shape is cut out from the honeycomb panel manufactured as described above to form a base material 7 and a sub-base material 8.

Further, the honeycomb panel formed as described above is attached to the side beam 1 formed of a box girder assembled in a box-shaped cross section,
A method of attaching the bracket 6 will be described. Figure 2b
As shown in FIG. 2, the base material 7 of the bracket is a supporting portion 7a on one side and a receiving portion 7b on the other side. As the base material 8, separately provided honeycomb panels having different thicknesses are stacked. Then, the reinforcing plate 9 is provided on both sides of the supporting portion 7a, and
The sub-base material 8 side of b is also clamped by the reinforcing plate 10. The supporting portion 7a of the bracket 6 penetrates the one side honeycomb panel 1a of the side beam 1 and abuts against the other honeycomb panel 1a which faces the side honeycomb panel 1a, and welds them through the backing plate 11 respectively. To do. Further, a cylindrical metal fitting 12 is fitted into the center portion of the receiving portion side through both the reinforcing plates 10 and 10 and the receiving seats 13 and 13 to receive the receiving portion 7 respectively.
b, the cylindrical metal fitting 12 and the receiving seat 13 are fixed by welding. This is to reduce the deflection of the receiving portion 7b when the receiving portion 7b receives a vertical force. In addition, one cylindrical metal fitting 12a is concentrically formed on the cylindrical metal fitting 12.
By disposing, it is possible to further reduce the deflection. The end portion of the sub-base material 8 is welded to the face plate of the honeycomb panel 1a (inside), the honeycomb panel 1a through which the reinforcing plate 10 penetrates is cut obliquely, and the hollow right-angled corner metal fitting 14 is interposed therebetween to perform welding. Fix it. In addition,
If necessary, a support plate 15 (see FIG. 2a) that is in contact with both end surfaces on the receiving portion side may be attached to the side beam 1 with respect to the vertical bending applied to the receiving portion 7b of the base material 7.

Reference numeral 4 is a horizontal beam, which penetrates the honeycomb panel of the side beam 1 and is attached so as to be orthogonal to the side beam,
A well-shaped bogie frame is configured with the side beams 1.

The method of attaching the bracket 6 to the side beam 1 can be performed as shown in FIGS. 3a and 3b in addition to the above embodiment.

In FIG. 3a, the reinforcing plate 9 is kept only inside the side beam, and the reinforcing plate 10a is arranged on the end face of the sub-base material 8.
3b is the same as FIG. 3a, but the face plate for supporting the honeycomb of the base material and the sub-base material is common and is one.

With the above structure, the honeycomb panel can be easily welded to each other, the strength and the rigidity of the structure are high, and a bogie frame which is lighter than the case where only the aluminum alloy plate is used can be obtained. .

That is, when the strength and the rigidity of the structure are made equal (that is, the deflection of the central portion of the air spring supporting portion when the cantilever bending test is performed is made equal), the weight of the bracket is the aluminum alloy plate material. Whereas the weight of the case where the honeycomb panel of the present invention is composed of only 80 kg, the weight of the case of using the honeycomb panel of the present invention is 40 kg, which can be reduced by approximately 40 kg (50%).

[0021]

According to the present invention, the following effects can be obtained.

Since the honeycomb panel of the side beam used for the SCM support frame is completely integrated by brazing the aluminum honeycomb core and the face plate, it has high strength and stability, and moreover, the four corners have corner fittings and It is held by a backing metal, and both front and back sides are joined by welding, so it has high strength as a beam, excellent weather resistance and durability,
Can be lightened.

Further, since the bracket for supporting the air spring for supporting the vehicle body and equipment is formed of a laminated body of honeycomb panels, a bogie frame having high strength and rigidity and being lightweight can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a bogie frame for a magnetically levitated vehicle according to the present invention.

FIG. 2a is a view showing a method of attaching the air spring support bracket to the side beam of the bogie frame.

2b is a cross-sectional view taken along the line I-I of FIG. 2a.

FIG. 3a is a cross-sectional view showing another example of a method of attaching the support bracket.

FIG. 3b is a sectional view showing still another example of a method of attaching the support bracket.

FIG. 4a is a diagram showing a first step of a method for manufacturing an aluminum alloy honeycomb panel.

FIG. 4b is a diagram showing a second step.

FIG. 4c is a diagram showing a third step.

FIG. 5 is a diagram showing an outline of a conventional bogie frame.

FIG. 6 is a diagram showing an outline of a magnetic levitation vehicle.

FIG. 7 is a perspective view showing a conventional bracket.

[Explanation of symbols]

 1 Side Beam 1a, 1b, 1c Panel 4 Horizontal Beam 6 Bracket 7 Base Material 8 Sub Base Material 9, 10 Reinforcement Plate 14 Corner Metal Fitting

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[Procedure amendment]

[Submission date] October 15, 1993

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Figure 5]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 6]

[Figure 7]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiro Oda 2-8, Hikarimachi, Kokubunji, Tokyo 38 Inside the Railway Technical Research Institute (72) Inventor Masayoshi Azaue 2-8, Hikarimachi, Kokubunji, Tokyo 38 Inside the Railway Technical Research Institute (72) Inventor Kenichi Kato 2-8 Mitsumachi, Kokubunji, Tokyo 38 Inside the Railway Technical Research Institute

Claims (2)

[Claims] 1. In a bogie frame of a magnetic levitation bogie composed of a pair of left and right side beams and a plurality of lateral beams orthogonal to opposite side surfaces of the side beams, an aluminum alloy honeycomb panel is assembled in a box-shaped cross section. The box girder is used as a side beam, and a plurality of horizontal beams made of an aluminum alloy hollow material are attached orthogonally to the side beams on opposite side surfaces of the pair of left and right side beams corresponding to the mounting positions of the superconducting magnets. A bracket for air spring support that is made by stacking alloy honeycomb panels
A bogie frame for superconducting magnetic levitation, which is provided on a side surface of the side beam. 2. An aluminum alloy honeycomb panel (7)
As a base material, and aluminum alloy reinforcing plates on both sides of the base material
(9), a bracket (6) constructed by laminating an aluminum alloy honeycomb panel sub-base material (8) and a reinforcing plate (10) with a metal
The bogie frame for superconducting magnetic levitation according to claim 1, characterized in that the bogie frame for superconducting magnetic levitation has a structure in which it is attached to a side surface of a side beam through (11) and a triangular corner metal fitting (14).