JP6791706B2 - Rail vehicle structure - Google Patents

Description

The present invention relates to a rail vehicle structure, and is suitable for application to, for example, a railroad vehicle or a monorail vehicle.

The rail vehicle structure, which is the structure of the rail vehicle, generally includes a roof structure that constitutes the upper surface, a side structure that constitutes the side surface, an underframe that constitutes the lower surface, and a wife structure that constitutes the end face in the longitudinal direction. In recent years, for the purpose of improving manufacturability and sound insulation, roof structures, side structures and pedestals have been made of hollow profiles made of aluminum alloy consisting of two opposing face plates and a plurality of ribs connecting the face plates. The method of constructing a frame and assembling it into a rail vehicle structure is becoming widespread.

Generally, the rail vehicle structure is coupled to the bogie, which is a traveling device, via a pillow beam joined to the lower surface of the underframe near the end in the longitudinal direction. A central pin extending in the vertical direction of the rail vehicle structure is connected to the lower surface of the pillow beam, and a bogie traction device is connected near the downward end of the central pin. When the bogie travels, a traction force acts toward the downward end of the center pin via a traction device, and the rail vehicle structure connected to the center pin is moved in the traveling direction of the trolley by being pulled by this traction force.

Here, Patent Document 1 shows an example of a conventional underframe structure. Patent Document 1 discloses a structure in which an underframe is formed of a hollow shape material made of an aluminum alloy, and a corbel beam having an eye-shaped cross section on the lower surface thereof and extending in the width direction of a rail vehicle structure is joined. ing.

Pillow beams are joined to the lower surface of the underframe near the end in the longitudinal direction of the railcar structure. The corbel beam is a hollow shape member made of an aluminum alloy having an eye-shaped cross section assembled by joining a plurality of members, and extends in the width direction of the railway vehicle structure.

The corbel beam is joined to the lower surface of the underframe by the welded portion at the end of the corbel beam at the longitudinal end of the railway vehicle structure of the upper surface plate at the end of the corbel beam. A central pin extending in the vertical direction of the railway vehicle structure is connected to the lower surface of the lower plate of the pillow beam by a bolt. A bogie traction device is coupled near the downward end of the center pin, and a traction force acts in the longitudinal direction of the railcar structure as the bogie travels.

Here, for example, when a traction force acts on one side in the longitudinal direction, an upward force that pushes one end of the corbel beam toward the underframe acts on the pillow beam, and the pillow beam acts in the longitudinal direction. A downward force acts that pulls the other end away from the underframe. In this way, when the traction force acts, the force in the vertical direction acts on the railway vehicle structure.

In such a configuration, the vertical force of the railroad vehicle structure acting on the longitudinal end of the corbel end railroad vehicle structure is transmitted to the underframe only through the corbel end welded portion.

Therefore, for the purpose of ensuring the strength of the welded portion at the end of the corbel beam, an opening for joining is provided in the upper surface plate of the corbel beam, an opening for work is provided in the lower surface plate of the corbel beam, and the upper surface plate of the corbel beam is provided for joining. Complex additional construction such as joining the top plate of the corbel beam and the underframe inside the corbel beam using the opening is required, and the manufacturing cost of the railway vehicle structure tends to increase.

JP-A-2002-145060

In the conventional underframe structure, the pillow beam is joined to the lower surface of the underframe only at the end portion of the upper plate in the longitudinal direction of the rail vehicle structure. However, in such a configuration, since the part where the traction force is transmitted from the corbel beam to the underframe is only the joint portion, the corbel beam and the underframe are joined inside the corbel beam for the purpose of ensuring the strength against the traction force. There is a problem that complicated additional construction such as is required. Further, there is a problem that the manufacturing cost of the rail vehicle structure tends to increase due to this.

The present invention has been made in consideration of the above points, and an object of the present invention is to propose a rail vehicle structure in which the manufacturing cost is reduced by ensuring the strength against traction force with a simple structure.

In order to solve such a problem, in the present invention, a roof structure constituting the upper surface, a side structure forming the side surface, an underframe forming the lower surface, and a wife structure forming the end face are provided, and a carriage is provided on the lower surface of the underframe. In the rail vehicle structure in which the connecting pillow beams are joined, the pillow beams are the pillow beam upper surface plate constituting the upper surface, the pillow beam lower surface plate constituting the lower surface, the pillow beam upper surface plate, and the pillow beam ribs connecting the pillow beam lower surface plates. And either or both of the rail vehicle structure of the pillow beam near the longitudinal end or the center, the end of the rail vehicle structure of the pillow beam lower plate is the rail vehicle of the pillow beam upper plate. It protrudes from the longitudinal end of the structure toward the opposite side of the pillow beam, and the longitudinal end of the rail vehicle structure of the pillow beam upper plate is joined to the lower surface of the underframe, and the rail vehicle structure of the pillow beam lower plate is in the longitudinal direction. A part of the end portion is joined to the lower surface of the underframe via a vertical plate extending in the vertical direction and the width direction of the rail vehicle structure.

According to this rail vehicle structure, the traction force can be shared between the joint portion of the longitudinal end of the rail vehicle structure of the upper surface plate of the pillow beam and the joint portion of the vertical plate, and the strength against the traction force can be secured with a simple structure.

According to the present invention, the production of the rail vehicle structure can be simplified and the production cost can be reduced.

It is a perspective view of a railroad vehicle structure. It is a vertical sectional view in the longitudinal direction about AA in the vicinity of the corbel beam of the railroad vehicle structure shown in FIG. 1 in one embodiment of the present invention. It is a vertical sectional view in the width direction about BB in the vicinity of the corbel beam of the railroad vehicle structure shown in FIG. 1 in one embodiment of the present invention.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

(1) Configuration of a Railway Vehicle Structure According to the Present Embodiment FIG. 1 is a perspective view schematically showing an example of a railway vehicle structure. As shown in FIG. 1, the vertical direction of the railroad vehicle structure is 101, and the width direction and the longitudinal direction orthogonal to the vertical direction are 102 and 103, respectively.

The railroad vehicle structure 1 includes side structures 20 (only one is shown) erected at both ends of the underframe 10 in the width direction 102, and wife structures 40 (only one of them is shown) erected at both ends of the underframe 10 in the longitudinal direction 103. It is composed of a side structure 20 (only one is shown) and a roof structure 30 mounted on the upper end of the wife structure 40 in the vertical direction 101.

The side structure 20 is provided with an entrance / exit 22 for passengers to get on and off and a window 21 for passengers to see the scenery outside the vehicle. The wife structure 40 is provided with a gangway 41 for passengers to move between vehicles.

The end of the underframe 10 in the width direction 102 is provided with a side beam 11 extending in the longitudinal direction 103, and the end of the underframe 10 in the longitudinal direction 103 is provided with an end beam 12 extending in the width direction 102.

Hereinafter, the configuration of the underframe 10 near the end in the longitudinal direction 103 will be described. A pillow beam 14 for connecting the railroad vehicle structure 1 to a bogie (not shown), which is a traveling device, is joined to the lower surface of the underframe 10.

In front of the corbel 14 (the end side of the railway vehicle structure 1 in the longitudinal direction 103) and behind (the center side of the railway vehicle structure 1 in the longitudinal direction 103), two are parallel and extend in the longitudinal direction 103. 13 are joined.

The opposite end of the pillow beam 14 of the middle beam 13 joined to the front of the pillow beam 14 is joined to the end beam 12. The opposite end of the pillow beam 14 of the middle beam 13 joined behind the pillow beam 14 is joined to the cross beam 15 extending in the width direction 102.

An air spring receiver 16 is provided near the end of the lower surface of the pillow beam 14 in the width direction 102, and the air spring receiver 16 is coupled to an air spring (not shown) of the carriage. A central pin 17 extending in the vertical direction 101 is provided at the center of the lower surface of the pillow beam 14 in the width direction 102, and the upper portion of the center pin 17 is connected to the lower surface of the pillow beam 14 with a bolt 18 to form the center pin 17. The lower part is coupled to a traction device (not shown) that transmits the traction force of the bogie.

From this connection, the traction force when the bogie travels is transmitted to the railroad vehicle structure 1, and the railroad vehicle structure 1 travels in the longitudinal direction 103. An opening for arranging a through pipe 19 extending in the longitudinal direction 103 is provided inside the pillow beam 14.

FIG. 2 shows a cross-sectional view taken along the line AA in the vicinity of the corbel beam 14 shown in FIG. 1, and FIG. 3 shows a cross-sectional view taken along the line BB near the corbel beam 14 shown in FIG. The underframe 10 is composed of an underframe upper surface plate 51 constituting the upper surface, an underframe lower surface plate 52 forming the lower surface, and an underframe rib 53 connecting the underframe upper surface plate 51 and the underframe lower surface plate 52 in a truss shape. It is a hollow profile to be constructed.

The pillow beam 14 is composed of a pillow beam upper surface plate 61 forming an upper surface, a pillow beam lower surface plate 62 forming a lower surface, and a corbel beam rib 63 connecting the pillow beam upper surface plate 61 and the pillow beam lower surface plate 62 in a corbel shape. It is a hollow profile composed. At the end of the corbel beam upper surface plate 61 in the longitudinal direction 103, there is a corbel beam end upper surface plate 64 projecting in the longitudinal direction 103 of the corbel beam 14.

At the end of the corbel beam bottom plate 62 in the longitudinal direction 103, there is a corbel beam end bottom plate 65 projecting in the end direction of the corbel beam 14 in the longitudinal direction 103. A central pin 17 is connected to the lower surface of the pillow beam lower surface plate 62 by a bolt 18, and a traction force 90 acts repeatedly on the lower portion of the central pin 17 in the longitudinal direction 103.

The pillow beam end lower surface plate 65 projects from the pillow beam end upper surface plate 64 in the longitudinal direction 103 of the pillow beam 14. A reinforcing portion 70 having a T-shaped cross section when viewed from the width direction 102 is joined to the end portion of the pillow beam end upper surface plate 64 and the pillow beam end lower surface plate 65 in the longitudinal direction 103 of the pillow beam 14. To.

The reinforcing portion 70 extends in the width direction 102 and the longitudinal direction 103, and has a horizontal plate 71 on the corbel side located on the side of the corbel 14 and a horizontal plate 72 on the opposite side of the corbel located on the opposite side of the corbel 14. It is composed of a vertical plate 73 extending in the direction 101 and the width direction 102.

The end of the horizontal plate 71 on the corbel side on the corbel 14 side and the end of the corbel 14 of the top plate 64 in the longitudinal direction 103 are joined to each other by the corbel end weld 66. It is also joined to the lower surface of the underframe lower plate 52.

The end of the horizontal plate 71 on the pillow beam side on the opposite side of the pillow beam 14 and the end of the horizontal plate 72 on the opposite side of the pillow beam on the pillow beam 14 side are joined to each other by the horizontal plate central portion welded portion 74 and under the underframe. It is joined to the lower surface of the face plate 52.

The opposite end of the horizontal plate 72 on the opposite side of the pillow beam 72 is joined to the lower surface of the underframe lower surface plate 52 by the horizontal plate end welded portion 75. The upper end of the vertical plate 73 in the vertical direction 101 is joined to the lower surface of the horizontal plate 72 on the opposite side of the pillow beam by the vertical plate upper welded portion 76, and the lower end of the vertical plate 73 in the vertical direction 101 is pillowed by the vertical plate lower welded portion 77. The beam end lower surface plate 65 is joined to the end portion of the pillow beam 14 in the longitudinal direction 103 in the end direction.

The middle beam 13 has a U-shaped cross section that opens in the width direction 102 of the railway vehicle structure 1 when viewed from the longitudinal direction 103. The reinforcing portion 70 is arranged in the direction of the end of the railroad vehicle structure 1 of the middle beam 13 in the width direction 102 and so as not to interfere with the range in which the through pipe 19 provided in the pillow beam rib 63 is extended in the longitudinal direction 103. Will be done.

The end of the horizontal plate 71 on the pillow beam side and the horizontal plate 72 on the opposite side of the pillow beam on the middle beam 13 side and the end of the middle beam 13 in the width direction 102 of the railway vehicle structure 1 are welded on the horizontal plate middle beam side. It is joined to each other by the portion 78 and is joined to the lower surface of the underframe lower plate 52.

The end of the horizontal plate 71 on the pillow beam side and the horizontal plate 72 on the opposite side of the pillow beam on the opposite side of the middle beam 13 is the underframe lower surface plate 52 at a position where it is connected to the underframe rib 53 by the horizontal plate side beam side welded portion 79. It is joined to the lower surface of. The end portion of the vertical plate 73 on the opposite side of the middle beam 13 is joined to the lower surface of the horizontal plate 72 on the opposite side of the pillow beam by the welded portion 80 on the beam side on the vertical plate side. The outer circumference of the vertical plate 73 on the middle beam 13 side is joined to the inner surface of the middle beam 13.

(2) Effect of the present embodiment According to the above configuration, the traction force 90 can disperse the force of pulling the end of the pillow beam 14 in the longitudinal direction 103 in the vertical direction 101 or pressing it. That is, this force can be shared and borne by the pillow beam rib 63 located at the end of the pillow beam 14 in the longitudinal direction 103 and the vertical plate 73 firmly joined to the highly rigid middle beam 13.

The traction force 90 is applied from the horizontal plate 71 on the pillow beam side and the horizontal plate 72 on the opposite side of the pillow beam to the beam beam end welded portion 66, the horizontal plate center welded portion 74, the horizontal plate end welded portion 75, and the horizontal plate middle beam side welded portion. It is transmitted to the underframe 10 via the portion 78 and the horizontal plate side beam side welded portion 79. The horizontal plate 71 on the pillow beam side and the horizontal plate 72 on the opposite side of the pillow beam are firmly joined to the underframe lower surface plate 52 and the middle beam 13 at the position where the underframe rib 53 is joined. Further, the position where the underframe rib 53 is connected has high rigidity. In this way, the force is distributed and transmitted to the horizontal plate center welded portion 74, the horizontal plate end welded portion 75, the horizontal plate middle beam side welded portion 78, and the horizontal plate side beam side welded portion 79, so that the pillow The load on the strength of the beam end welded portion 66 can be reduced.

Therefore, additional construction such as joining inside the corbel beam 14 to secure the strength of the welded portion 66 at the end of the corbel beam can be unnecessary or simplified, and the strength against the traction force can be secured with a simple structure, so that the rail vehicle structure can be manufactured. The cost can be reduced.

Further, since the reinforcing portion 70 is arranged so as not to interfere with the range in which the through pipe 19 is extended in the longitudinal direction 103, interference with the wiring or piping routed in the longitudinal direction 103 by using the through pipe 19 is prevented. Can be avoided.

The technical scope of the present invention is defined based on the description of each claim of the claims or the description of the means for solving the problem, but extends to the extent that a person skilled in the art can easily replace it. Is.

1 ... Railway vehicle structure, 10 ... Underframe, 11 ... Side beam, 12 ... End beam, 13 ... Middle beam, 14 ... Pillow beam, 15 ... Cross beam, 16 ... Air spring receiver, 17 ...... Center pin, 18 ... Bolt, 19 ... Through pipe, 20 ... Side structure, 21 ... Window, 22 ... Doorway, 30 ... Roof structure, 40 ... Wife structure, 41 ... Through path, 51 ... Underframe top plate, 52 ... Underframe bottom plate, 53 ... Underframe rib, 61 ... Pillow beam top plate, 62 ... Pillow beam bottom plate, 63 ... Pillow beam rib, 64 ... Pillow Beam end top plate, 65 ... Pillow beam end bottom plate, 66 ... Pillow beam end welded part, 70 ... Reinforcement part, 71 ... Pillow beam side horizontal plate, 72 ... Pillow beam opposite side horizontal plate, 73 ... Vertical plate, 74 ... Horizontal plate center welded part, 75 ... Horizontal plate end welded part, 76 ... Vertical plate upper welded part, 77 ... Vertical plate lower welded part, 78 ... Horizontal plate inside Beam side welded part, 79 ... Horizontal plate side beam side welded part, 80 ... Vertical plate side beam side welded part, 90 ... Traction force, 101 ... Vertical direction, 102 ... Width direction, 103 ... Longitudinal direction.

Claims (7)

It has a roof structure that constitutes the upper surface, a side structure that constitutes the side surface, an underframe that constitutes the lower surface, and a corbel structure that constitutes the end face, and a pillow beam that connects the bogie is joined to the lower surface of the underframe. In the rail vehicle structure
The corbel beam has a corbel beam upper surface plate forming an upper surface, a corbel beam lower surface plate forming a lower surface, and a corbel beam rib connecting the corbel beam upper surface plate and the corbel beam lower surface plate.
At one or both of the pillow beams, near the end or near the center of the rail vehicle structure in the longitudinal direction.
The longitudinal end of the rail vehicle structure of the pillow beam lower surface plate protrudes from the longitudinal end of the rail vehicle structure of the pillow beam upper surface plate in the longitudinal direction.
The longitudinal end of the rail vehicle structure of the pillow beam top plate is joined to the lower surface of the underframe.
A part of the longitudinal end of the rail vehicle structure of the corbel beam lower surface plate was joined to the lower surface of the underframe via a vertical plate extending in the vertical direction and the width direction of the rail vehicle structure. A rail vehicle structure characterized by that. The claim is characterized in that the vertical plate is joined to the lower surface of the underframe via a horizontal plate extending in the longitudinal direction and the width direction of the rail vehicle structure joined to the lower surface of the underframe. The rail vehicle structure described in 1. Said horizontal plate, the in the longitudinal direction of the railway car structure, is divided into two parts and the horizontal plate of the horizontal plate and the body bolster opposite side of the bolster closer,
The end of the horizontal plate near the corbel and the end of the horizontal plate opposite to the corbel and the end of the horizontal plate near the corbel and the end of the horizontal plate near the corbel are joined to each other and on the lower surface of the underframe. Joined,
The end of the horizontal plate near the corbel beam near the corbel beam is joined to the longitudinal end of the rail vehicle structure of the corbel beam top plate.
The rail vehicle structure according to claim 2, wherein the end portion of the horizontal plate opposite to the corbel beam is joined to the lower surface of the underframe. The rail vehicle structure according to claim 3, wherein the vertical plate is joined to the lower surface of the horizontal plate opposite to the pillow beam. At one or both of the pillow beams, near the end or near the center of the rail vehicle structure in the longitudinal direction.
A middle beam extending in the longitudinal direction of the rail vehicle structure is joined to the pillow beam.
The underframe located on the upper surface of the pillow beam is an underframe rib that connects the underframe upper surface plate constituting the upper surface, the underframe lower surface plate constituting the lower surface, and the underframe upper surface plate and the underframe lower surface plate. Consists of
The end portion of the horizontal plate near the end in the width direction of the rail vehicle structure is joined to the lower surface of the underframe lower surface plate at the position where the underframe rib is joined.
The rail vehicle according to claim 2, wherein the end of the horizontal plate near the center in the width direction of the rail vehicle structure is joined to the end of the middle beam in the width direction of the rail vehicle structure. Structure. The middle beam has a U-shaped cross section that opens toward the end in the width direction of the rail vehicle structure, and two are arranged side by side in the width direction of the rail vehicle structure.
The end of the vertical plate near the end of the rail vehicle structure in the width direction is joined to the lower surface of the horizontal plate opposite to the pillow beam .
The rail vehicle structure according to claim 5, wherein the outer periphery of the vertical plate near the center in the width direction of the rail vehicle structure is joined to the inner surface of the middle beam. An opening is provided in the corbel rib.
A through pipe extending in the longitudinal direction of the rail vehicle structure is arranged so as to penetrate the inside of the opening provided in the pillow beam rib.
The rail vehicle structure according to claim 1, wherein the vertical plate is arranged so as not to interfere with a range in which the through pipe is extended in the longitudinal direction of the rail vehicle structure.

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