WO2020075264A1 - Rail vehicle underframe structure and rail vehicle - Google Patents

Rail vehicle underframe structure and rail vehicle Download PDF

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Publication number
WO2020075264A1
WO2020075264A1 PCT/JP2018/037904 JP2018037904W WO2020075264A1 WO 2020075264 A1 WO2020075264 A1 WO 2020075264A1 JP 2018037904 W JP2018037904 W JP 2018037904W WO 2020075264 A1 WO2020075264 A1 WO 2020075264A1
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Prior art keywords
underframe
vehicle
underframe structure
bolster
adapter
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PCT/JP2018/037904
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French (fr)
Japanese (ja)
Inventor
宗太 木村
一任 是石
敏彦 用田
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株式会社日立製作所
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Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP2020509547A priority Critical patent/JP6837182B2/en
Priority to PCT/JP2018/037904 priority patent/WO2020075264A1/en
Priority to EP18933737.1A priority patent/EP3865368B1/en
Publication of WO2020075264A1 publication Critical patent/WO2020075264A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/14—Side bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F1/00—Underframes

Definitions

  • the present invention relates to an underframe structure of a railway vehicle and a railway vehicle.
  • a vehicle structure (hereinafter referred to as a structure) includes an underframe that forms a floor surface, side structures that are arranged at both ends in the width direction of the underframe, and a wife structure that is arranged at both ends in the longitudinal direction of the underframe. And a side structure and a roof structure arranged above the gable structure.
  • the underframe (hereinafter, also referred to as underframe structure) includes side beams provided at both ends in the width direction of the underframe along the longitudinal direction thereof, and end beams connecting the both ends in the longitudinal direction of the side beams, From a pillow beam provided along the end beam at a position at a predetermined distance from the longitudinal end of the structure, and a middle beam arranged along the longitudinal direction of the structure for connecting the end beam and the cross beam to the structure. Composed.
  • the center pin provided on the underside of the pillow beam along the vertical direction of the structure is connected to the bogie frame that constitutes the bogie. During acceleration and deceleration of the vehicle, the load in the vehicle front-rear direction is transmitted from the bogie to the bolster via the center pin.
  • Patent Documents 1 and 2 propose a bogie including a pillow beam that is bolted only to the side beams.
  • the load transmitted from the bogie to the bolster is transmitted only to the side beams, so the load applied to the connection between the bolster and the side beams increases.
  • the load applied to the connection portion between the pillow beam and the side beam increases as in the above case.
  • the object of the present invention is made in view of the problems of the prior art, and it is to provide an underframe structure of a railway vehicle and a railway vehicle that contribute to the improvement of the assemblability of the vehicle body and have high reliability.
  • an underframe structure for a railway vehicle that has side beams and bolsters and is connected to a bogie via the bolsters.
  • the pillow beam is provided with a key, the key is between the convex portions of the adapter. It is achieved by arranging and the key and the convex portion are fastened using a bolt extending in the vehicle longitudinal direction.
  • FIG. 1 is a side view of a railway vehicle having an underframe structure according to the first embodiment.
  • FIG. 2 is a bottom perspective view of a vehicle body structure including the underframe structure according to the first embodiment.
  • FIG. 3 is an external view of a bolster and an adapter in the underframe structure according to the first embodiment.
  • FIG. 4 is an external view of the adapter according to the first embodiment.
  • FIG. 5 is a cross-sectional view of the adapter according to the first embodiment.
  • FIG. 6 is a cross-sectional view of an underframe structure and a bogie according to the second embodiment.
  • FIG. 7 is a cross-sectional view of an underframe structure and a bogie according to the third embodiment.
  • FIG. 8 is an external view of a connection portion between an end beam and a side beam according to the fourth embodiment.
  • the embodiment disclosed in the present invention relates to a structure in which a pillow beam is bolted to a side beam.
  • the directions used in the following description are defined as follows.
  • the vehicle longitudinal direction front-rear direction, rail direction
  • the vehicle width direction is the Y direction
  • the height direction is the Z direction.
  • it may be simply referred to as an X direction, a Y direction, and a Z direction.
  • Railway vehicles are vehicles that run along the laid track, and include railway vehicles, monorail vehicles, trams, and new transportation vehicles.
  • An embodiment of the present invention will be described by taking a railway vehicle as a typical example of a railroad vehicle.
  • a railcar structure 1 including an underframe 10 shown as a first embodiment in FIGS. 1 to 5 includes an underframe 10 that forms a floor surface and both end portions in the width direction of the underframe 10.
  • the side structure 30 is arranged, the end structures 40 are arranged at both ends of the underframe 10 in the longitudinal direction, and the side structure 30 and the roof structure 50 are arranged above the end structures 40.
  • the underframe 10 includes a pair of side beams 11 extending along the longitudinal direction at both ends in the width direction of the underframe 10, and both end portions of the side beam 11 in the vehicle longitudinal direction.
  • the underframe 10 is provided with portions projecting in the Y direction from both ends of the cross beam 13 in the vehicle width direction.
  • this protruding portion is referred to as a “key”.
  • the key 18 has a rectangular cross section in the XY plane, a rectangular cross section in the XY plane, and a rectangular cross section in the YZ plane. However, at least one of the cross sections may have a shape other than a rectangle.
  • a screw hole 19 is provided on the side surface of the key 18 in the X direction.
  • the adapters 15 are arranged at the positions facing the keys 18 at the bottoms of the side beams 11 (not shown in FIG. 3).
  • the adapter 15 has three convex portions 16 arranged side by side along the vehicle longitudinal direction on the lower surface of a beam-shaped main body 15a extending along the vehicle longitudinal direction.
  • the convex portions 16 on both longitudinal sides of the vehicle have a trapezoidal cross section, and the central convex portion 16 has a rectangular cross section.
  • the convex portions 16 at both ends in the X direction are provided with hole portions 17 having a stepped shape for holding the head of the bolt BT so as to penetrate in the X direction. .
  • the adapter 15 is pre-fastened to the lower surface of the side beam 11 by using bolts (not shown) inserted into a plurality of holes 20 (FIG. 3) penetrating in the Z direction near both ends of the beam-shaped main body 15a.
  • the pillow beam 13 connected to the bogie 2 and the adapter 15 attached to the side beam 11 are combined so as to cross each other while disposing the key 18 between the convex portions 16, and two bolts are combined.
  • BTs (FIG. 5) are inserted through the holes 17 on both sides and screwed into the screw holes 19, respectively.
  • the underframe 10 shown as the second embodiment is, in the underframe structure of the first embodiment, as shown in FIG. 6 which is a sectional view of the bogie 2 and the underframe 10, as shown in FIG. Is an embodiment in which the height is higher than both ends.
  • the central portion of the bolster 13 in the vehicle width direction is supported by the trolley 2 via the air spring 4, and the center pin 14 provided on the lower surface of the central portion of the bolster 13 in the vehicle width direction is connected to the trolley 2. Has been done.
  • the joint position between the adapter 15 and both ends of the cross beam 13 in the vehicle width direction can be made lower. Therefore, even when the adapter 15 is provided between the side beam 11 and the cross beam 13, the structure It is possible to minimize or eliminate the change in the height position of 1. Further, since the bending rigidity of the bolster 13 in the X direction can be improved, it becomes possible to reduce the bending deformation of the bolster 13 due to the vibration in the vehicle vertical direction.
  • FIG. 7 which is a cross-sectional view of the bogie 2 and the underframe 10
  • the underframe 10 shown as the third embodiment is located at the height position of the vehicle width direction central portion of the floor structure 5. Is an embodiment in which the height is higher than both ends.
  • a side beam 11 (FIG. 2) attached to the lower surface of the floor structure 5 is connected to the adapter 15.
  • the offset amount of the height position of the coupler receiver 21 used for vehicle connection and the floor structure 5 is reduced, and the load at the time of connection is efficiently applied to the floor structure 5 even when the center beam is omitted. Can be transmitted to. Further, it becomes possible to dispose the wiring / duct 6 in the space between the floor plate 7 and the floor structure 5 and to dispose a vibration isolator or the like for noise countermeasures. Furthermore, since the bending rigidity of the floor structure 5 in the X direction can be improved, it is possible to reduce the deformation of the vehicle body due to the airtight load and the weight of the passenger.
  • the configuration of the third embodiment may be combined with the configuration of the first embodiment.
  • the structure 1 including the underframe structure shown as the fourth embodiment applies a coupling load to the connection portion of the end beam 12 and the side beam 11 as shown in FIG. 8 which is a schematic view of the connection portion of the end beam and the side beam.
  • FIG. 8 is a schematic view of the connection portion of the end beam and the side beam.
  • plate members 22A and 22B are provided as reinforcing members for increasing the strength when transmitting to the side beam 11 and the floor structure 5, and can be applied to any of the underframe structures of the first to third embodiments.
  • the plate member 22A has a vertical plate 22a and a horizontal plate 22b.
  • the vertical plate 22a bent at the center has a trapezoidal shape that becomes narrower as it is separated from the end beam 12 on the far end side, the near end is welded to the end beam 12, and the bottom edge is the floor structure 5. Is welded to.
  • the horizontal plate 22b arranged apart from the floor structure 5 has a trapezoidal shape which becomes narrower as it is separated from the end beam 12 on the far end side, and the near end is welded to the end beam 12.
  • the one side edge is welded to the vertical plate 22 a, and the other side edge is welded to the side surface of the side beam 11. That is, the plate member 22 ⁇ / b> A on the far end side has a smaller cross-sectional shape as the plate member 22 ⁇ / b> A is separated from the end beam 12.
  • the plate member 22B has a vertical plate 22c and a horizontal plate 22d.
  • the vertical plate 22c has a trapezoidal shape that becomes narrower as it is separated from the end beam 12 on the far end side, the near end portion is welded to the end beam 12, and the bottom edge is welded to the upper surface of the side beam 11. The upper edge is welded to the center of the lower surface of the horizontal plate 22d. Further, the rectangular horizontal plate 22d is bent at the center, and the near end portion is welded to the end beam 12. That is, the plate member 22 ⁇ / b> B on the far end side becomes lower in height as it is separated from the end beam 12.
  • the strength of the connection portion between the end beam 12 and the side beam 11 is increased, and even when the middle beam is omitted, the load at the time of connection is transmitted to the side beam 11 and the floor structure 5 while achieving stress relaxation. It becomes possible to do. It is sufficient to provide at least one of the plate members 22A and 22B.
  • the adapter 15 is attached to the structure 1 by bolt fastening, but it may be attached to the structure by welding. It is also possible to adopt a configuration in which a member that receives a load from the yaw damper attached to the truck 2 is attached to the bolster 13.
  • the present invention is not limited to the above-described embodiment, but includes various modifications.
  • the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described.
  • a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Connection Of Plates (AREA)

Abstract

Provided are: an underframe structure that is for a rail vehicle and that is highly reliable and easy to assemble ; and a rail vehicle. This rail vehicle underframe structure, having side beams 11 coupled to a vehicle structure 1 and having a cap beam 13 coupled to a truck, is provided with adapters 15 which are mounted to the side beams 11 and which each have a plurality of protrusions 16 arranged along the longitudinal direction of the vehicle. The cap beam 13 is provided with keys 18 that protrude in the vehicle longitudinal direction. The keys 18 and the protrusions 16 are fastened using bolts BT that extend in the vehicle longitudinal direction in a state where the respective keys 18 are disposed between the protrusions 16 of the adapters 15.

Description

軌条車両の台枠構造及び軌条車両Undercarriage structure of railway vehicle and railway vehicle
　本発明は、軌条車両の台枠構造及び軌条車両に関するものである。 The present invention relates to an underframe structure of a railway vehicle and a railway vehicle.
　一般に、車両構体（以下、構体という）は、床面をなす台枠と、台枠の幅方向の両端部に配置される側構体と、台枠の長手方向の両端部に配置される妻構体と、側構体と妻構体の上部に配置される屋根構体とから構成される６面体の構造物である。 Generally, a vehicle structure (hereinafter referred to as a structure) includes an underframe that forms a floor surface, side structures that are arranged at both ends in the width direction of the underframe, and a wife structure that is arranged at both ends in the longitudinal direction of the underframe. And a side structure and a roof structure arranged above the gable structure.
　台枠（以下、台枠構造ともいう）は、台枠の幅方向の両端部にその長手方向に沿って備えられる側梁と、側梁の長手方向の両端部同士を接続する端梁と、構体の長手方向端部から所定距離の位置に端梁に沿って備えられる枕梁と、端梁と枕梁とを構体に接続するための構体長手方向に沿って配置される中梁とから構成される。 The underframe (hereinafter, also referred to as underframe structure) includes side beams provided at both ends in the width direction of the underframe along the longitudinal direction thereof, and end beams connecting the both ends in the longitudinal direction of the side beams, From a pillow beam provided along the end beam at a position at a predetermined distance from the longitudinal end of the structure, and a middle beam arranged along the longitudinal direction of the structure for connecting the end beam and the cross beam to the structure. Composed.
　枕梁の下面に構体上下方向に沿って備えられる中心ピンは、台車を構成する台車枠に接続される。車両の加速および減速の際、中心ピンを介して台車から枕梁に車両前後方向の荷重が伝達される。 The center pin provided on the underside of the pillow beam along the vertical direction of the structure is connected to the bogie frame that constitutes the bogie. During acceleration and deceleration of the vehicle, the load in the vehicle front-rear direction is transmitted from the bogie to the bolster via the center pin.
　一方、鉄道車両の組立性向上の観点から、床下に取り付けられる配線やダクトの取付を容易化することが求められる。取付を容易化する上では、中梁を省略した構造とし、台車に枕梁を取り付けた状態で構体に組み付けることが有効である。このような中梁を省略した構体に対応する台車構造として、特許文献１、２では、側梁とのみボルト締結される枕梁を備えた台車が提案されている。 On the other hand, from the viewpoint of improving the ease of assembly of railway vehicles, it is required to facilitate the installation of wiring and ducts that are installed under the floor. In order to facilitate the attachment, it is effective to adopt a structure in which the center girder is omitted and assemble the body with the pillow beam attached to the bogie. As a bogie structure corresponding to such a structure in which the center beam is omitted, Patent Documents 1 and 2 propose a bogie including a pillow beam that is bolted only to the side beams.
欧州特許出願公開第２ ５００ ２３１号明細書European Patent Application Publication No. 2500231 Specification 欧州特許出願公開第２ ５４０ ５９２号明細書European Patent Application Publication No. 2540592
　鉄道車両の台枠構造において、中梁を省略した場合、台車から枕梁に伝達される荷重は側梁のみに伝達されるため、枕梁と側梁の接続部に負荷される荷重が増加する。また、連結時においても、荷重は端梁から側梁のみに伝達されるため、上記と同様に枕梁と側梁の接続部に負荷される荷重が増加する。 In the underframe structure of a railway vehicle, if the center beam is omitted, the load transmitted from the bogie to the bolster is transmitted only to the side beams, so the load applied to the connection between the bolster and the side beams increases. . In addition, since the load is transmitted from the end beam to only the side beam even at the time of connection, the load applied to the connection portion between the pillow beam and the side beam increases as in the above case.
　従って特許文献１、２に記載の台車構造では、車体が牽引時や連結時の荷重を受けた場合において、枕梁を構体に取り付けるためのボルトに対して負荷されるせん断荷重が増大するため、ボルト締結部における信頼性が低下する虞れがある。 Therefore, in the bogie structure described in Patent Documents 1 and 2, when the vehicle body receives a load during towing or connection, the shear load applied to the bolt for attaching the bolster to the structure increases, There is a possibility that the reliability of the bolt fastening portion may decrease.
　本発明の目的は、かかる従来技術の課題に鑑みてなされたものであり、車体の組立性向上に寄与するとともに信頼性の高い軌条車両の台枠構造及び軌条車両を提供することである。 The object of the present invention is made in view of the problems of the prior art, and it is to provide an underframe structure of a railway vehicle and a railway vehicle that contribute to the improvement of the assemblability of the vehicle body and have high reliability.
　上記の課題を解決するために、代表的な本発明の台枠構造の一つでは、側梁と枕梁とを有し、前記枕梁を介して台車に連結される軌条車両の台枠構造において、前記側梁に取り付けられ、車両長手方向に沿って並んだ複数の凸部を備えたアダプターを有し、前記枕梁がキーを備えており、前記キーが前記アダプターの凸部の間に配置され、前記キーと前記凸部とが車両長手方向に延在するボルトを用いて締結されていることにより達成される。 In order to solve the above-mentioned problem, in one of the typical underframe structures of the present invention, an underframe structure for a railway vehicle that has side beams and bolsters and is connected to a bogie via the bolsters. In, having an adapter that is attached to the side beam and has a plurality of convex portions arranged along the vehicle longitudinal direction, the pillow beam is provided with a key, the key is between the convex portions of the adapter. It is achieved by arranging and the key and the convex portion are fastened using a bolt extending in the vehicle longitudinal direction.
　本発明によれば、車体の組立性向上に寄与するとともに信頼性の高い軌条車両の台枠構造及び軌条車両を提供することが可能となる。
　上記した以外の課題、構成及び効果は、以下の実施形態の説明により明らかにされる。 ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to contribute to the improvement in the assembling property of a vehicle body, and to provide a highly reliable rail vehicle underframe structure and rail vehicle.
Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.
図１は、実施形態１に関する台枠構造を備えた鉄道車両の側面視図である。FIG. 1 is a side view of a railway vehicle having an underframe structure according to the first embodiment. 図２は、実施形態１に関する台枠構造を備えた車両構体の下面斜視図である。FIG. 2 is a bottom perspective view of a vehicle body structure including the underframe structure according to the first embodiment. 図３は、実施形態１に関する台枠構造における枕梁とアダプターの外観図である。FIG. 3 is an external view of a bolster and an adapter in the underframe structure according to the first embodiment. 図４は、実施形態１に関するアダプターの外観図である。FIG. 4 is an external view of the adapter according to the first embodiment. 図５は、実施形態１に関するアダプターの断面視図である。FIG. 5 is a cross-sectional view of the adapter according to the first embodiment. 図６は、実施形態２に関する台枠構造および台車の断面視図である。FIG. 6 is a cross-sectional view of an underframe structure and a bogie according to the second embodiment. 図７は、実施形態３に関する台枠構造および台車の断面視図である。FIG. 7 is a cross-sectional view of an underframe structure and a bogie according to the third embodiment. 図８は、実施形態４に関する端梁と側梁の接続部の外観図である。FIG. 8 is an external view of a connection portion between an end beam and a side beam according to the fourth embodiment.
　本発明において開示する実施形態は、側梁に枕梁をボルト締結した構体に関するものである。以下の説明に用いる方向を、次のように定義する。図に示す構体１において、車両長手方向（前後方向、レール方向）をＸ方向、車両幅方向（枕木方向）をＹ方向、および高さ方向をＺ方向とする。なお単に、Ｘ方向、Ｙ方向およびＺ方向と記す場合がある。 The embodiment disclosed in the present invention relates to a structure in which a pillow beam is bolted to a side beam. The directions used in the following description are defined as follows. In the structure 1 shown in the drawing, the vehicle longitudinal direction (front-rear direction, rail direction) is the X direction, the vehicle width direction (sleeper direction) is the Y direction, and the height direction is the Z direction. In addition, it may be simply referred to as an X direction, a Y direction, and a Z direction.
　軌条車両は、敷設される軌道に沿って運行される車両であり、鉄道車両、モノレール車両、路面電車、新交通車両等を含む。軌条車両の代表例として、鉄道車両を取り上げて本発明の実施の形態を説明する。 ㆍ Railway vehicles are vehicles that run along the laid track, and include railway vehicles, monorail vehicles, trams, and new transportation vehicles. An embodiment of the present invention will be described by taking a railway vehicle as a typical example of a railroad vehicle.
（実施形態１）
　図１から図５に実施形態１として示す台枠１０を備えた鉄道車両の構体１は、図１に示すように、床面をなす台枠１０と、台枠１０の幅方向の両端部に配置される側構体３０と、台枠１０の長手方向の両端部に配置される妻構体４０と、側構体３０と妻構体４０の上部に配置される屋根構体５０とから構成される。
　さらに台枠１０は、図１又は図２に示すように、台枠１０の幅方向両端部において長手方向に沿って延在する一対の側梁１１と、側梁１１の車両長手方向の両端部同士を接続する端梁１２と、台枠１０下面の台車枠３と対向する位置に設けた枕梁１３とを有している。また台枠１０は、図３に示すように、枕梁１３の車両幅方向両端からＹ方向に突出する部分を設けている。本明細書においては、この突出する部分を「キー」と称する。以下の実施形態では、キー１８は、Ｘ－Ｚ面の断面が矩形状であり、Ｘ－Ｙ面の断面が矩形状であり、Ｙ－Ｚ面の断面が矩形状である。ただし、いずれかの断面の少なくとも一つを矩形以外の形状としてもよい。キー１８のＸ方向側面にはねじ穴１９を設けている。 (Embodiment 1)
As shown in FIG. 1, a railcar structure 1 including an underframe 10 shown as a first embodiment in FIGS. 1 to 5 includes an underframe 10 that forms a floor surface and both end portions in the width direction of the underframe 10. The side structure 30 is arranged, the end structures 40 are arranged at both ends of the underframe 10 in the longitudinal direction, and the side structure 30 and the roof structure 50 are arranged above the end structures 40.
Further, as shown in FIG. 1 or 2, the underframe 10 includes a pair of side beams 11 extending along the longitudinal direction at both ends in the width direction of the underframe 10, and both end portions of the side beam 11 in the vehicle longitudinal direction. It has an end beam 12 that connects them to each other, and a pillow beam 13 provided at a position facing the bogie frame 3 on the lower surface of the underframe 10. Further, as shown in FIG. 3, the underframe 10 is provided with portions projecting in the Y direction from both ends of the cross beam 13 in the vehicle width direction. In this specification, this protruding portion is referred to as a “key”. In the following embodiments, the key 18 has a rectangular cross section in the XY plane, a rectangular cross section in the XY plane, and a rectangular cross section in the YZ plane. However, at least one of the cross sections may have a shape other than a rectangle. A screw hole 19 is provided on the side surface of the key 18 in the X direction.
　さらに、側梁１１（図３では不図示）の下部において、キー１８と対向する位置に、アダプター１５をそれぞれ配置している。アダプター１５は、図５に示すように、車両長手方向に沿って延在する梁状本体１５ａの下面に、３つの凸部１６を車両長手方向に沿って並べて設けている。図５に示すように、車両長手方向両端側の凸部１６は台形断面を有し、中央の凸部１６は矩形断面を有する。図４と図５に示すように、Ｘ方向両端の凸部１６には、ボルトＢＴの頭部を保持するような段付き形状を有する穴部１７が、Ｘ方向に貫通して設けられている。 Furthermore, the adapters 15 are arranged at the positions facing the keys 18 at the bottoms of the side beams 11 (not shown in FIG. 3). As shown in FIG. 5, the adapter 15 has three convex portions 16 arranged side by side along the vehicle longitudinal direction on the lower surface of a beam-shaped main body 15a extending along the vehicle longitudinal direction. As shown in FIG. 5, the convex portions 16 on both longitudinal sides of the vehicle have a trapezoidal cross section, and the central convex portion 16 has a rectangular cross section. As shown in FIGS. 4 and 5, the convex portions 16 at both ends in the X direction are provided with hole portions 17 having a stepped shape for holding the head of the bolt BT so as to penetrate in the X direction. .
　アダプター１５は、梁状本体１５ａの両端近傍でＺ方向に貫通した複数の穴部２０（図３）に挿通したボルト（不図示）を用いて、側梁１１の下面に予め締結される。台車組み付け時に、台車２に連結された枕梁１３と、側梁１１に取り付けられたアダプター１５とが、凸部１６間にキー１８を配置しつつ互いに交差するように組み合わされ、２本のボルトＢＴ（図５）が、両側の穴部１７から挿通されてねじ穴１９にそれぞれ螺合する。ボルトＢＴを締め上げることにより、凸部１６とキー１８の対向面が密着し、アダプター１５を介して枕梁１３と側梁１１とを連結できる。 The adapter 15 is pre-fastened to the lower surface of the side beam 11 by using bolts (not shown) inserted into a plurality of holes 20 (FIG. 3) penetrating in the Z direction near both ends of the beam-shaped main body 15a. At the time of assembling the bogie, the pillow beam 13 connected to the bogie 2 and the adapter 15 attached to the side beam 11 are combined so as to cross each other while disposing the key 18 between the convex portions 16, and two bolts are combined. BTs (FIG. 5) are inserted through the holes 17 on both sides and screwed into the screw holes 19, respectively. By tightening the bolt BT, the facing surfaces of the convex portion 16 and the key 18 are brought into close contact with each other, and the pillow beam 13 and the side beam 11 can be connected via the adapter 15.
　これにより、牽引時や連結時に枕梁１３と側梁１１の接続部に伝達される荷重の一部は、進行方向前方側の枕梁１３のキー１８とアダプター１５を締結するボルトＢＴには引張荷重として負荷され、また残りの荷重は、進行方向後方側の凸部１６とキー１８との密着面で負荷される。したがって、ボルトＢＴの負担する引張荷重が過大になることはない。一方、アダプター１５と側梁１１を締結するボルト（不図示）には、密着面の摩擦により負担される荷重を除いて、せん断荷重が負荷されるが、多数（例えば１つのアダプター１５に対し計１２本）のボルトを用いることで、個々のボルトの受ける荷重を分散させることが可能である。以上のことから，本実施形態により、枕梁１３と側梁１１の接続部を締結するボルトに対して、せん断荷重の集中を回避することが可能となる。
　なお、全ての凸部１６とキー１８にＸ方向に貫通する同軸の孔を設け、これらの孔を貫通する長さの単一ボルトを差し込んで、その貫通端にナットを螺合させることで、枕梁１３とアダプター１５とを締結することもできる。 As a result, a part of the load transmitted to the connecting portion between the bolster 13 and the side beam 11 at the time of towing or connecting is pulled by the bolt BT that fastens the key 18 and the adapter 15 of the bolster 13 on the front side in the traveling direction. The remaining load is applied on the contact surface between the convex portion 16 and the key 18 on the rear side in the traveling direction. Therefore, the tensile load that the bolt BT bears does not become excessive. On the other hand, a bolt (not shown) that fastens the adapter 15 and the side beam 11 is subjected to a shear load except for a load that is borne by the friction of the contact surface. By using 12 bolts, it is possible to disperse the load received by each bolt. From the above, according to the present embodiment, it becomes possible to avoid the concentration of the shear load on the bolts that fasten the connection portion between the cross beam 13 and the side beam 11.
In addition, by providing coaxial holes penetrating in the X direction in all the convex portions 16 and the keys 18, by inserting a single bolt having a length penetrating these holes and screwing a nut into the penetrating end, It is also possible to fasten the bolster 13 and the adapter 15.
（実施形態２）
　実施形態２として示す台枠１０は、実施形態１の台枠構造において、台車２と台枠１０の断面視である図６に示すように、枕梁１３の車両幅方向中央部の高さ位置を両端部に対して高くした実施形態である。枕梁１３の車両幅方向中央部は、空気ばね４を介して台車２に対して支持されており、枕梁１３の車両幅方向中央部の下面に備えられた中心ピン１４は台車２に連結されている。 (Embodiment 2)
The underframe 10 shown as the second embodiment is, in the underframe structure of the first embodiment, as shown in FIG. 6 which is a sectional view of the bogie 2 and the underframe 10, as shown in FIG. Is an embodiment in which the height is higher than both ends. The central portion of the bolster 13 in the vehicle width direction is supported by the trolley 2 via the air spring 4, and the center pin 14 provided on the lower surface of the central portion of the bolster 13 in the vehicle width direction is connected to the trolley 2. Has been done.
　本実施形態によれば、アダプター１５と、枕梁１３の車両幅方向両端部との接合位置をより低くできるので、側梁１１と枕梁１３との間にアダプター１５を設けた場合でも、構体１の高さ位置の変化を最小限に抑えるか、もしくは無くすことが可能となる。また、枕梁１３のＸ方向における曲げ剛性を向上できるため、車両上下方向の振動に対する枕梁１３の曲げ変形を低減することが可能となる。 According to the present embodiment, the joint position between the adapter 15 and both ends of the cross beam 13 in the vehicle width direction can be made lower. Therefore, even when the adapter 15 is provided between the side beam 11 and the cross beam 13, the structure It is possible to minimize or eliminate the change in the height position of 1. Further, since the bending rigidity of the bolster 13 in the X direction can be improved, it becomes possible to reduce the bending deformation of the bolster 13 due to the vibration in the vehicle vertical direction.
（実施形態３）
　実施形態３として示す台枠１０は、実施形態２の台枠構造において、台車２と台枠１０の断面視である図７に示すように、床構体５の車両幅方向中央部の高さ位置を両端に対して高くした実施形態である。床構体５の下面に取り付けられた側梁１１（図２）が、アダプター１５に連結されている。 (Embodiment 3)
In the underframe structure of the second embodiment, as shown in FIG. 7 which is a cross-sectional view of the bogie 2 and the underframe 10, the underframe 10 shown as the third embodiment is located at the height position of the vehicle width direction central portion of the floor structure 5. Is an embodiment in which the height is higher than both ends. A side beam 11 (FIG. 2) attached to the lower surface of the floor structure 5 is connected to the adapter 15.
　本実施形態によれば、車両連結に用いる連結器受２１と床構体５との高さ位置のオフセット量を低減し、中梁を省略した場合においても連結時の荷重を床構体５に効率的に伝達することが可能となる。また、床板７と床構体５の間の空間に配線・ダクト６を配置することや、騒音対策用の防振材などを配置することが可能となる。さらに、床構体５のＸ方向の曲げ剛性を向上できるため、気密荷重や乗客の重量による車体の変形を低減することが可能となる。なお、実施形態３の構成を、実施形態１の構成と組み合わせてもよい。 According to the present embodiment, the offset amount of the height position of the coupler receiver 21 used for vehicle connection and the floor structure 5 is reduced, and the load at the time of connection is efficiently applied to the floor structure 5 even when the center beam is omitted. Can be transmitted to. Further, it becomes possible to dispose the wiring / duct 6 in the space between the floor plate 7 and the floor structure 5 and to dispose a vibration isolator or the like for noise countermeasures. Furthermore, since the bending rigidity of the floor structure 5 in the X direction can be improved, it is possible to reduce the deformation of the vehicle body due to the airtight load and the weight of the passenger. The configuration of the third embodiment may be combined with the configuration of the first embodiment.
（実施形態４）
　実施形態４として示す台枠構造を備えた構体１は、端梁と側梁の接続部の概略図である図８に示すように、端梁１２と側梁１１の接続部に、連結荷重を側梁１１と床構体５に伝達する際の強度を高める補強部材として板部材２２Ａ、２２Ｂを設けた実施形態であり、実施形態１から実施形態３のいずれかの台枠構造に適用できる。 (Embodiment 4)
The structure 1 including the underframe structure shown as the fourth embodiment applies a coupling load to the connection portion of the end beam 12 and the side beam 11 as shown in FIG. 8 which is a schematic view of the connection portion of the end beam and the side beam. This is an embodiment in which plate members 22A and 22B are provided as reinforcing members for increasing the strength when transmitting to the side beam 11 and the floor structure 5, and can be applied to any of the underframe structures of the first to third embodiments.
　板材２２Ａは、縦板２２ａと横板２２ｂとを有する。中央で折れ曲がった縦板２２ａは、遠端部側で端梁１２から離間するに従って幅狭となる台形状を有しており、近端部が端梁１２に溶接され、底縁が床構体５に溶接されている。また床構体５から離間して配置された横板２２ｂは、遠端部側で端梁１２から離間するに従って幅狭となる台形状を有しており、近端部が端梁１２に溶接され、一方の側縁が縦板２２ａに溶接され、他方の側縁が側梁１１の側面に溶接されている。つまり、遠端部側の板部材２２Ａは、端梁１２から離間するに従って断面形状が小さくなっている。 The plate member 22A has a vertical plate 22a and a horizontal plate 22b. The vertical plate 22a bent at the center has a trapezoidal shape that becomes narrower as it is separated from the end beam 12 on the far end side, the near end is welded to the end beam 12, and the bottom edge is the floor structure 5. Is welded to. Further, the horizontal plate 22b arranged apart from the floor structure 5 has a trapezoidal shape which becomes narrower as it is separated from the end beam 12 on the far end side, and the near end is welded to the end beam 12. The one side edge is welded to the vertical plate 22 a, and the other side edge is welded to the side surface of the side beam 11. That is, the plate member 22 </ b> A on the far end side has a smaller cross-sectional shape as the plate member 22 </ b> A is separated from the end beam 12.
　板部材２２Ｂは、縦板２２ｃと横板２２ｄとを有する。縦板２２ｃは、遠端部側で端梁１２から離間するに従って幅狭となる台形状を有しており、近端部が端梁１２に溶接され、底縁が側梁１１の上面に溶接され、上縁が横板２２ｄの下面中央に溶接されている。また、矩形状の横板２２ｄは中央で折れ曲がり、近端部が端梁１２に溶接されている。つまり、遠端部側の板部材２２Ｂは、端梁１２から離間するに従って高さが低くなっている。 The plate member 22B has a vertical plate 22c and a horizontal plate 22d. The vertical plate 22c has a trapezoidal shape that becomes narrower as it is separated from the end beam 12 on the far end side, the near end portion is welded to the end beam 12, and the bottom edge is welded to the upper surface of the side beam 11. The upper edge is welded to the center of the lower surface of the horizontal plate 22d. Further, the rectangular horizontal plate 22d is bent at the center, and the near end portion is welded to the end beam 12. That is, the plate member 22 </ b> B on the far end side becomes lower in height as it is separated from the end beam 12.
　板部材２２Ａ、２２Ｂにより、端梁１２と側梁１１の接続部の強度を高め、中梁を省略した場合においても、応力緩和を図りつつ連結時の荷重を側梁１１と床構体５に伝達することが可能となる。なお、板部材２２Ａ、２２Ｂの少なくとも一方を設ければ足りる。 With the plate members 22A and 22B, the strength of the connection portion between the end beam 12 and the side beam 11 is increased, and even when the middle beam is omitted, the load at the time of connection is transmitted to the side beam 11 and the floor structure 5 while achieving stress relaxation. It becomes possible to do. It is sufficient to provide at least one of the plate members 22A and 22B.
　以上に示した実施例においては、アダプター１５はボルト締結によって構体１に取り付けられるものとしたが、溶接によって構体に取り付けて構成することも可能である。また、枕梁１３に、台車２に取り付けられるヨーダンパからの荷重を受ける部材を取り付ける構成とすることも可能である。 In the embodiment described above, the adapter 15 is attached to the structure 1 by bolt fastening, but it may be attached to the structure by welding. It is also possible to adopt a configuration in which a member that receives a load from the yaw damper attached to the truck 2 is attached to the bolster 13.
　なお、本発明は上記した実施の形態に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施の形態は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施の形態における構成の一部を他の実施の形態の構成に置き換えることが可能であり、また、ある実施の形態の構成に他の実施の形態の構成を加えることも可能である。また、各実施の形態における構成の一部について、他の構成の追加・削除・置換をすることも可能である。 The present invention is not limited to the above-described embodiment, but includes various modifications. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. . Further, with respect to a part of the configuration in each embodiment, it is possible to add / delete / replace other configurations.
１・・・構体、２・・・台車、３・・・台車枠、４・・・空気ばね、５・・・床構体、６・・・配線・ダクト、７・・・床板、１０・・・台枠、１１・・・側梁、１２・・・端梁、１３・・・枕梁、１４・・・中心ピン、１５・・・アダプター、１６・・・凸部、１７・・・穴部、１８・・・キー、１９・・・ねじ穴、２０・・・穴部、２１・・・連結器受、２２Ａ，２２Ｂ・・・板部材、３０・・・側構体、４０・・・妻構体、５０・・・屋根構体 1 ... Body, 2 ... Bogie, 3 ... Bogie frame, 4 ... Air spring, 5 ... Floor structure, 6 ... Wiring / duct, 7 ... Floor plate, 10 ...・ Underframe, 11 ... Side beam, 12 ... End beam, 13 ... Pillar beam, 14 ... Center pin, 15 ... Adapter, 16 ... Convex part, 17 ... Hole Part, 18 ... Key, 19 ... Screw hole, 20 ... Hole part, 21 ... Coupler receiver, 22A, 22B ... Plate member, 30 ... Side structure, 40 ... Wife structure, 50 ... Roof structure

Claims (6)

  1. 　側梁と枕梁とを有し、前記枕梁を介して台車に連結される軌条車両の台枠構造において、
    　前記側梁に取り付けられ、車両長手方向に沿って並んだ複数の凸部を備えたアダプターを有し、
    　前記枕梁がキーを備えており、
    　前記キーが前記アダプターの凸部の間に配置され、前記キーと前記凸部とが車両長手方向に延在するボルトを用いて締結されている、
    ことを特徴とする台枠構造。     In the underframe structure of the railway vehicle having side beams and bolsters, which is connected to the trolley via the bolsters,
    Attached to the side beam, having an adapter having a plurality of convex portions arranged along the vehicle longitudinal direction,
    The pillow beam is equipped with a key,
    The key is arranged between the convex portions of the adapter, and the key and the convex portion are fastened using a bolt extending in the vehicle longitudinal direction,
    Underframe structure characterized by that.
  2. 　請求項１に記載の台枠構造において、
    　前記アダプターの凸部の少なくとも一つが、車両長手方向に沿って延在する貫通穴を有し、
    　前記キーがねじ穴を有し、
    　前記ボルトが前記貫通穴に挿通されて、前記ねじ穴に螺合されている、
    ことを特徴とする台枠構造。     The underframe structure according to claim 1,
    At least one of the convex portions of the adapter has a through hole extending along the vehicle longitudinal direction,
    The key has a screw hole,
    The bolt is inserted into the through hole and screwed into the screw hole,
    Underframe structure characterized by that.
  3. 　請求項１又は２に記載の台枠構造において、
    　前記枕梁の車両幅方向における枕梁中央部が、前記台車に対して支持されており、前記枕梁の車両幅方向における枕梁両端部に、前記アダプターが取り付けられており、
    　前記枕梁中央部が、前記枕梁両端部に対して高い位置にある、
    ことを特徴とする台枠構造。     The underframe structure according to claim 1 or 2,
    The central part of the bolster in the vehicle width direction of the bolster is supported with respect to the trolley, and the adapter is attached to both ends of the bolster in the vehicle width direction of the bolster,
    The central portion of the bolster is at a high position with respect to both ends of the bolster,
    Underframe structure characterized by that.
  4. 　請求項１から３のいずれか１項に記載の台枠構造において、
    　前記台枠構造は、前記側梁上に設けられた床構体を含み、
    　前記床構体の車両幅方向における中央部が，前記床構体の車両幅方向における両端部に対して高い位置にある、
    ことを特徴とする台枠構造。     The underframe structure according to any one of claims 1 to 3,
    The underframe structure includes a floor structure provided on the side beams,
    The central portion in the vehicle width direction of the floor structure is at a position higher than both ends of the floor structure in the vehicle width direction,
    Underframe structure characterized by that.
  5. 　請求項１から４のいずれか１項に記載の台枠構造において、
    　前記側梁と端梁の接続部を補強する補強部材が設けられている、
    ことを特徴とする台枠構造。     The underframe structure according to any one of claims 1 to 4,
    A reinforcing member is provided to reinforce the connecting portion between the side beam and the end beam,
    Underframe structure characterized by that.
  6. 　請求項５に記載の台枠構造を備える、
    ことを特徴とする軌条車両。     The underframe structure according to claim 5 is provided,
    A railroad vehicle characterized by the above.
PCT/JP2018/037904 2018-10-11 2018-10-11 Rail vehicle underframe structure and rail vehicle WO2020075264A1 (en)

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JP6837182B2 (en) 2021-03-03
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EP3865368A1 (en) 2021-08-18
EP3865368B1 (en) 2022-11-23

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