EP3865368B1 - Structure de caisse de véhicule ferroviaire et véhicule ferroviaire - Google Patents

Structure de caisse de véhicule ferroviaire et véhicule ferroviaire Download PDF

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Publication number
EP3865368B1
EP3865368B1 EP18933737.1A EP18933737A EP3865368B1 EP 3865368 B1 EP3865368 B1 EP 3865368B1 EP 18933737 A EP18933737 A EP 18933737A EP 3865368 B1 EP3865368 B1 EP 3865368B1
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EP
European Patent Office
Prior art keywords
underframe
bolster
vehicle
adapter
truck
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18933737.1A
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German (de)
English (en)
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EP3865368A1 (fr
EP3865368A4 (fr
Inventor
Sota KIMURA
Kazuto KOREISHI
Toshihiko Mochida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
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Hitachi Ltd
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Publication date
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Publication of EP3865368A1 publication Critical patent/EP3865368A1/fr
Publication of EP3865368A4 publication Critical patent/EP3865368A4/fr
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Publication of EP3865368B1 publication Critical patent/EP3865368B1/fr
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Classifications

    • 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 rail vehicle and a rail vehicle.
  • a vehicle structure (hereinafter, referred to as a structure) is a hexahedral structure composed of an underframe forming a floor surface, side structures disposed at both end portions of the underframe in a width direction thereof, end structures disposed at both end portions of the underframe in a longitudinal direction thereof, and a roof structure disposed on the side structures and the end structures.
  • the underframe (hereinafter, also referred to as a underframe structure) includes: side beams provided at both end portions of the underframe in the width direction along the longitudinal direction thereof; end beams each connecting both end portions of the side beams in the longitudinal direction; bolster beams each being provided, along the end beam, at a position away from a longitudinal end portion of the structure by a predetermined distance; a middle beam disposed along the longitudinal direction of the structure to connect the end beams and the bolster beams with the structure.
  • a center pin provided along a structure vertical direction on a lower surface of the bolster beam is connected to a truck frame constituting the truck. During acceleration and deceleration of the vehicle, a load in a vehicle front-rear direction is transmitted from the truck to the bolster beam via the center pin.
  • PTLs 1 and 2 propose a truck including a bolster beam that is fastened only to the side beam using a bolt.
  • Patent WO 2017/104052 A1 discloses an underframe structure of a rail vehicle, including a side beam and a bolster beam, wherein the underframe structure is connected to a truck via the bolster beam.
  • the load transmitted from the truck to the bolster beam is transmitted only to the side beam, so that the load applied to a connecting portion between the bolster beam and the side beam increases. Further, a load is also transmitted from the end beam to the side beam only at the time of coupling, so that the load applied to the connecting portion between the bolster beam and the side beam increases similarly as described above.
  • a shear load applied to a bolt for attaching the bolster beam to the structure increases when a vehicle body receives a load at the time of pulling or coupling, and thus reliability of a bolt fastening portion may be reduced.
  • the invention is made in view of the problems in the related art, and an object thereof is to provide a rail vehicle and an underframe structure of a rail vehicle that contributes to improving the assemblability of a vehicle body and has high reliability.
  • the underframe structure of a rail vehicle includes a side beam and a bolster beam, and connectable to a truck via the bolster beam, wherein the underframe structure cpmprises an adapter attached to the side beam and having a plurality of projection portions arranged along a vehicle longitudinal direction, the bolster beam includes a key, the key is disposed between the projection portions of the adapter, and the key and the projection portions are fastened using a bolt extending in the vehicle longitudinal direction.
  • Embodiments disclosed in the invention relate to a structure in which a bolster beam is fastened to a side beam using a bolt.
  • Directions used in the following description are defined as follows .
  • a vehicle longitudinal direction front-rear direction, rail direction
  • a vehicle width direction is set as a Y direction
  • a height direction is set as a Z direction.
  • the directions are simply referred to as the X direction, the Y direction, and the Z direction.
  • a rail vehicle is a vehicle that moves along a laid rail, and includes a railway vehicle, a monorail vehicle, a tram, an automated guideway transit vehicle, and the like.
  • the embodiments of the invention will be described by taking the railway vehicle as a representative example of the rail vehicle.
  • the structure 1 of the railway vehicle including an underframe 10 shown as a first embodiment in FIGS. 1 to 5 includes the underframe 10 forming a floor surface, side structures 30 disposed at both end portions of the underframe 10 in a width direction thereof, end structures 40 disposed at both end portions of the underframe 10 in a longitudinal direction thereof, and a roof structure 50 disposed on the end structures 40 and the side structures 30.
  • the underframe 10 has a pair of side beams 11 provided at both end portions of the underframe 10 in the width direction thereof and extending along the longitudinal direction thereof, end beams 12 each connecting both end portions of the side beams 11 in the vehicle longitudinal direction, and bolster beams 13 each being provided at a position facing a truck frame 3 under the underframe 10.
  • the underframe 10 is provided with portions protruding in the Y direction from both end portions of the bolster beam 13 in the vehicle width direction. In the present specification, this protruding portion is referred to as a "key".
  • a key 18 has a rectangular cross section in an X-Z plane, a rectangular cross section in an X-Y plane, and a rectangular cross section in a Y-Z plane.
  • at least one of the cross sections may have a shape other than a rectangle.
  • a screw hole 19 is provided on a side surface of the key 18 in the X direction.
  • adapters 15 each are disposed at a position facing the key 18.
  • the adapter 15 is provided with three projection portions 16 arranged along the vehicle longitudinal direction at a lower surface of a beam-shaped body 15a extending along the vehicle longitudinal direction.
  • the projection portions 16 on both end sides in the vehicle longitudinal direction each have a trapezoidal cross section, and the projection portion 16 at the center has a rectangular cross section.
  • holes 17 each having a stepped shape for holding a head portion of a bolt BT are provided to penetrate in the X direction in the projection portions 16 which are at both end portions in the X direction.
  • the adapter 15 is fastened to the lower surface of the side beam 11 in advance by using bolts (not shown) inserted into a plurality of holes 20 ( FIG. 3 ) penetrating in the Z direction in the vicinity of both end portions of the beam-shaped body 15a.
  • the bolster beam 13 to be coupled to a truck 2 and the adapter 15 attached to the side beam 11 are combined such that the key 18 is disposed between the projection portions 16 and the projection portion 16 and the key 18 intersect with each other, and two bolts BT ( FIG. 5 ) are inserted through the holes 17 at both sides and screwed into the screw holes 19, respectively.
  • two bolts BT FIG. 5
  • a bolt (not shown) for fastening the adapter 15 and the side beam 11 is applied with a shear load in addition to a load caused by friction of the contact surfaces, but many bolts (for example, 12 bolts per adapter 15) are used, so that the load received by the respective bolts can be distributed.
  • many bolts for example, 12 bolts per adapter 15
  • the bolster beam 13 and the adapter 15 can also be fastened by providing coaxial holes penetrating all the projection portions 16 and the keys 18 in the X direction, inserting a single bolt having a length penetrating these holes, and screwing a nut to a penetrating end of the bolt.
  • a height position of a center portion of the bolster beam 13 in the vehicle width direction is higher than those at both end portions as shown in a cross sectional view of the truck 2 and the underframe 10 in FIG. 6 , with respect to the underframe structure in the first embodiment.
  • the center portion of the bolster beam 13 in the vehicle width direction is support with respect to the truck 2 via an air spring 4, and a center pin 14 provided on a lower surface of the center portion of the bolster beam 13 in the vehicle width direction is coupled to the truck 2.
  • joint positions between the adapters 15 and both end portions of the bolster beam 13 in the vehicle width direction can be lowered, so that it is possible to minimize or eliminate a change in a height position of the structure 1 even when the adapter 15 is provided between the side beam 11 and the bolster beam 13.
  • the bending rigidity of the bolster beam 13 in the X direction can be improved, so that it is possible to reduce bending deformation of the bolster beam 13 due to vibration in a vehicle vertical direction.
  • a height position of a center portion of a floor structure 5 in the vehicle width direction is higher than those at both end portions as shown in a cross sectional view of the truck 2 and the underframe 10 in FIG. 7 , with respect to the underframe structure in the second embodiment.
  • a side beam 11 ( FIG. 2 ) attached to a lower surface of the floor structure 5 is coupled to the adapter 15.
  • an offset amount between height positions of a connector receiver 21 used for vehicle coupling and the floor structure 5 is reduced, and even when a middle beam is omitted, a load at the time of coupling can be efficiently transmitted to the floor structure 5. Further, it is possible to dispose a wiring/duct 6 in a space between a floor plate 7 and the floor structure 5, or to dispose a damping material or the like for noise reduction. Further, since the bending rigidity of the floor structure 5 in the X direction can be improved, deformation of the vehicle body due to an airtightness load and weight of passengers can be reduced. Further, the configuration of the third embodiment may be combined with the configuration of the first embodiment.
  • the structure 1 having an underframe structure shown as a fourth embodiment includes plate members 22A and 22B provided on a connecting portion between the end beam 12 and the side beam 11 as reinforcement members that increase the strength when a coupling load is transmitted to the side beam 11 and the floor structure 5, as shown in a schematic view of a connecting portion of the end beam and the side beam in FIG. 8 , and the present embodiment can be applied to any of the underframe structures of the first to third embodiments.
  • the plate member 22A includes a vertical plate 22a and a horizontal plate 22b.
  • the vertical plate 22a bent at the center has a trapezoidal shape, which is narrowed as away from the end beam 12, on a distal end portion side, a proximal end portion is welded to the end beam 12, and a bottom edge is welded to the floor structure 5.
  • the horizontal plate 22b spaced apart from the floor structure 5 has a trapezoidal shape, which is narrowed as away from the end beam 12, on a distal end portion side, a proximal end portion is welded to the end beam 12, one side edge is welded to the vertical plate 22a, and the other side edge is welded to a side surface of the side beam 11. That is, a cross-sectional shape of the plate member 22A on the distal end portion side becomes smaller as away from the end beam 12.
  • the plate member 22B includes a vertical plate 22c and a horizontal plate 22d.
  • the vertical plate 22c has a trapezoidal shape, which is narrowed as away from the end beam 12, on a distal end portion side, a proximal end portion is welded to the end beam 12, a bottom edge is welded to the upper surface of the side beam 11, and an upper edge is welded to the center of a lower surface of the horizontal plate 22d.
  • the rectangular horizontal plate 22d is bent at the center, and a proximal end portion is welded to the end beam 12. That is, a height of the plate member 22B on the distal end portion side reduces as away from the end beam 12.
  • the plate members 22A and 22B increase the strength of the connecting portion between the end beam 12 and the side beam 11, and even when the middle beam is omitted, a load at the time of coupling can be transmitted to the side beam 11 and the floor structure 5 while relaxing the stress. Further, 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 is also possible to attach the adapter 15 to the structure by welding. Further, it is also possible to adopt a configuration in which a member for receiving a load from a yaw damper attached to the truck 2 is attached to the bolster beam 13.

Landscapes

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

Claims (6)

  1. Structure de châssis (10) d'un véhicule ferroviaire, comprenant une poutre latérale (11) et une poutre transversale (13), et pouvant être connectée à un bogie (2) par l'intermédiaire de la poutre transversale (13), la structure de châssis (10) étant caractérisée en ce qu'elle comprend :
    un adaptateur (15) fixé à la poutre latérale (11) et présentant une pluralité de parties en saillie (16) agencées le long d'une direction longitudinale de véhicule, dans laquelle
    la poutre transversale comprend une clavette (18), et la clavette (18) est disposée entre les parties en saillie (16) de l'adaptateur (15), et la clavette (18) et les parties en saillie (16) sont fixées à l'aide d'un boulon s'étendant dans la direction longitudinale de véhicule.
  2. Structure de châssis (10) selon la revendication 1, dans laquelle
    au moins une des parties en saillie (16) de l'adaptateur (15) a un trou traversant (17) s'étendant le long de la direction longitudinale de véhicule,
    la clavette (18) a un trou de vis (19), et
    le boulon est inséré dans le trou traversant (17) et vissé dans le trou de vis (19).
  3. Structure de châssis (10) selon la revendication 1 ou 2, dans laquelle
    une partie centrale de la poutre transversale (13) dans une direction de largeur de véhicule est supportée par rapport au bogie (2), et l'adaptateur (15) est fixé aux deux parties d'extrémité de la poutre transversale (13) dans la direction de largeur de véhicule, et
    la partie centrale de la poutre transversale (13) est positionnée plus haute que les deux parties d'extrémité de la poutre transversale (13).
  4. Structure de châssis (10) selon l'une quelconque des revendications 1 à 3, dans laquelle
    la structure de châssis (10) : comprend une structure de plancher (5) disposée sur la poutre latérale (11), et
    une partie centrale de la structure de plancher (5) dans la direction de largeur de véhicule est positionnée plus haute que les deux parties d'extrémité de la structure de plancher (5) dans la direction de largeur de véhicule.
  5. Structure de châssis (10) selon l'une quelconque des revendications 1 à 4, comprenant en outre :
    un élément de renforcement qui renforce une partie de connexion de la poutre latérale (11) et d'une poutre d'extrémité (12).
  6. Véhicule ferroviaire, comprenant :
    la structure de châssis (10) selon la revendication 5.
EP18933737.1A 2018-10-11 2018-10-11 Structure de caisse de véhicule ferroviaire et véhicule ferroviaire Active EP3865368B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/037904 WO2020075264A1 (fr) 2018-10-11 2018-10-11 Structure de caisse de véhicule ferroviaire et véhicule ferroviaire

Publications (3)

Publication Number Publication Date
EP3865368A1 EP3865368A1 (fr) 2021-08-18
EP3865368A4 EP3865368A4 (fr) 2022-06-15
EP3865368B1 true EP3865368B1 (fr) 2022-11-23

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ID=70165224

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Application Number Title Priority Date Filing Date
EP18933737.1A Active EP3865368B1 (fr) 2018-10-11 2018-10-11 Structure de caisse de véhicule ferroviaire et véhicule ferroviaire

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EP (1) EP3865368B1 (fr)
JP (1) JP6837182B2 (fr)
WO (1) WO2020075264A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111976769B (zh) * 2020-08-20 2021-11-26 中车大同电力机车有限公司 机车底架结构及具有其的机车
CN113451951B (zh) * 2021-06-24 2022-12-09 中车株洲电力机车有限公司 一种城轨车辆底架布线方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2500231B1 (fr) 2011-03-16 2015-07-22 Bombardier Transportation GmbH Unité de véhicule ferroviaire avec support de roulement
EP2540592B1 (fr) 2011-06-29 2015-07-29 Bombardier Transportation GmbH Train roulant pour véhicule ferroviaire avec dispositif de ressort pneumatique
JPWO2013157464A1 (ja) * 2012-04-17 2015-12-21 株式会社日立製作所 軌条車両構体
JP6535757B2 (ja) * 2015-12-17 2019-06-26 株式会社日立製作所 枕梁およびそれを備える軌条車両構体
JP6791706B2 (ja) * 2016-09-30 2020-11-25 株式会社日立製作所 軌条車両構体

Also Published As

Publication number Publication date
JP6837182B2 (ja) 2021-03-03
EP3865368A1 (fr) 2021-08-18
WO2020075264A1 (fr) 2020-04-16
JPWO2020075264A1 (ja) 2021-02-15
EP3865368A4 (fr) 2022-06-15

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