EP4015340A1 - Châssis d'un véhicule ferroviaire - Google Patents

Châssis d'un véhicule ferroviaire Download PDF

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Publication number
EP4015340A1
EP4015340A1 EP21211627.1A EP21211627A EP4015340A1 EP 4015340 A1 EP4015340 A1 EP 4015340A1 EP 21211627 A EP21211627 A EP 21211627A EP 4015340 A1 EP4015340 A1 EP 4015340A1
Authority
EP
European Patent Office
Prior art keywords
segment
central
underframe
support
central support
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.)
Withdrawn
Application number
EP21211627.1A
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German (de)
English (en)
Inventor
Dr. Holger Schmidt
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.)
Deutsche Bahn AG
Original Assignee
Deutsche Bahn AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deutsche Bahn AG filed Critical Deutsche Bahn AG
Publication of EP4015340A1 publication Critical patent/EP4015340A1/fr
Withdrawn legal-status Critical Current

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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
    • B61F1/00—Underframes
    • B61F1/02—Underframes with a single central sill

Definitions

  • the invention relates to an underframe of a rail vehicle, comprising two head pieces that can be supported on wheels and a central support connecting the two head pieces, the longitudinal axis of which forms the longitudinal axis of the underframe, the central support having at least one central support segment, the boundary of which is formed in the manner of a frame an upper chord segment extending in the longitudinal direction of the central girder, a lower chord segment extending in the longitudinal direction of the central girder and two frame web plates connecting the upper and lower chord segments and extending in the longitudinal direction of the central girder, as well as a rail vehicle with such an underframe.
  • Rail vehicles with generic underframes are already known from the prior art. As a rule, these are carrier wagons on which containers or other superstructures for transporting payloads that cannot be loaded in containers (e.g. round wood) can be placed.
  • the DE 69 30 111 U , DE 44 40 425 A1 , DD 104 053 A1 and the WO 2018/219955 A1 in each case a subframe composed of three prefabricated assemblies, with two identical head pieces each having a central element of different lengths being connectable. In this way, subframes of different lengths should be easy and inexpensive to produce.
  • DE 42 29 481 C1 discloses an underframe for rail freight wagons, the basic concept of which provides for a combination of different modules or subassemblies, including, among other things, the combination of two end pieces with a central element made up of transverse and longitudinal beams. Due to the largely autonomous prefabrication of each individual assembly, in particular the head pieces and the running gear frame, in independent devices, the effort for adjustment and alignment work when assembling the various assemblies should be reduced.
  • top chord connecting the side outriggers can be a hindrance when placing a load-carrying unit on the underframe. Since the top chord overlaps the center beam, the upper side of the center beam, which is oriented upwards (i.e. facing away from the wheels) cannot be used as a bearing surface for a load-carrying unit with a flat underside. Instead, the load handling unit only rests on the significantly smaller upper side of the upper straps. As an alternative to this, sinking the upper flanges of the cross member into corresponding depressions in the center member would have a negative effect on the flow of forces and load transfer in the center member due to the resulting notch effects.
  • the invention is therefore based on the object of providing an underframe for a rail vehicle, comprising two head pieces that can be supported on wheels and a center support connecting the two head pieces, the longitudinal axis of which forms the longitudinal axis of the underframe, the center support having at least one center support segment whose boundary is of the type of frame is formed from an upper chord segment extending in the longitudinal direction of the central girder, a lower chord segment extending in the longitudinal direction of the central girder and two frame web plates connecting the upper and lower chord segments and extending in the longitudinal direction of the central girder, which overcomes the aforementioned problem and maintains high stability at the same time easier and cheaper to manufacture and with low life cycle costs.
  • this object is achieved in connection with the preamble of patent claim 1 in that the frame web plates of the central support segment have on their respective outer side a contact surface for a side arm of the underframe with through-holes for receiving fastening bolts that secure the side arm against the central support segment , and the central support segment has at least one stiffening element that reinforces the central support segment against torsion about the longitudinal axis.
  • the side arms of the central support segment can be connected in a particularly simple manner to the central central girder, without the need for top flanges that overlap the central girder for the mutual bracing of two side arms arranged on both sides of the central girder to form a common cross member.
  • the side arms can be arranged in an asymmetrical manner on both long sides of the center beam; i.e. the side arms do not have to be arranged in pairs on the center beam. This increases the flexibility in the configuration of the underframe, since the side extensions can be customized or adapted to a large extent to different types and types of load receiving units.
  • the side extensions can still be connected to the central support in a uniform manner, despite their freely customizable design.
  • the particular advantage of the concept according to the invention is that reference constructions of center supports defined only by the number and spatial positioning of the central support segments according to the invention have to be designed and approved.
  • the side outriggers are independent components that are not relevant for the approval of the central support, since they can be attributed to the payload of the rail vehicle in the inventive design of the underframe and are not a structural component of the load-bearing one Represent the underframe of the rail vehicle.
  • the constructive characteristic of the reference constructions of center girders is determined by the possible combinations of the two parameters "load to be carried” and "length of the center girder" and can be limited to a comparatively small number of types. In this way, many variants of underframes and thus also very many different types of rail freight wagons can be designed using fewer types of center girders.
  • the center support and side arms can be designed and produced independently of one another and, according to a modular system, can be connected to the contact surfaces of the center support provided for this purpose as required. In this way, the effort required for the design, approval and production of the subframes is significantly reduced.
  • underframes for rail freight cars can be done in a smaller variety of types and independent of the number, design and configuration of the side arms, which enables a higher degree of automation in their manufacture.
  • a subframe according to the invention can be converted more easily and adapted to changed needs during its service life, since different side boom constructions can be easily exchanged for one another, attached to other positions along the central beam or their number can be changed. In this way, the subframe can be converted quickly and easily to accommodate other load handling units.
  • each side arm preferably has an upper and a lower support on the central support. While the upper support is designed to rest on the vertical contact surface of the frame web plate of the center girder segment, the lower support is also set up for horizontal support on its lower chord segment. It is of particular advantage here that a uniform interface is formed between the side boom and the center support segment, which enables the side boom to be fastened to the central center support with detachable means.
  • the central support preferably has a plurality of central support segments according to the invention, which form a grid of possible contact surfaces with respect to the entire central support, to which side arms can be fastened quickly and easily in a wide variety of configurations (in terms of number and attachment location on the central support).
  • the at least one stiffening element is designed as a stiffening web plate supported against the two frame web plates.
  • the at least one stiffening element is designed as a gusset plate supporting the frame web plate against the lower chord segment. This enables the subframe to be constructed with external stiffening elements that are easier to access, for example for repair purposes.
  • the invention also relates to a rail vehicle with an underframe which is designed in accordance with at least one of the aforementioned patent claims.
  • Rail vehicles according to the invention can also be easily adapted to changed transport requirements during their service life with little effort by replacing and/or changing the arrangement of the cross members.
  • FIG 1 a perspective view of the underframe of a rail freight wagon, formed from a central support (3) and two head pieces (1, 2) at the ends, is shown.
  • the couplings and bogies of the rail freight car are arranged in a known manner in the area of the head pieces.
  • the central support (3) forms the central component of the underframe and has two end sections at the two distal ends in the area of the head pieces of the underframe and a central section arranged between the two end sections.
  • the cross-sectional profile of the central section is larger than the cross-sectional profile of the two end sections.
  • the longitudinal axis (A) of the subframe also forms the longitudinal direction of the central beam (3). While the two end sections and the central section form a substantially continuously flat support surface for one or more load receiving units ("FLU" or “Freight Loading Unit") on their upper side opposite from the wheels, the end sections form on the opposite underside leave enough space for the placement of the bogies.
  • the center support (3) has a number of center support segments (4) in the central section, which are set up for attaching side arms by means of detachable bolt connections and are therefore designed as additional force introduction elements (in addition to the force introduction at the two distal ends of the center support).
  • the center girder segments (4) are in turn separated by intermediate segments (7), the frame web plates of which have cutouts to reduce the dead weight of the center girder.
  • the specific design of the central support ie the number and relative spacing of the central support segments (4) to one another, takes place during the design of the central support by depending on the requirements of a specific load-carrying unit intended for transport
  • FIG. 2 Further details of the structural design of a central support segment (4) according to the invention are given in figure 2 shown. Its boundary is formed like a frame from an upper chord segment (41) extending in the longitudinal direction of the central girder, a lower chord segment (42) extending in the longitudinal direction of the central girder and two connecting the upper and lower chord segments and being in Frame web plates (43, 44) extending in the longitudinal direction of the central beam. Furthermore, the frame web plates (43, 44) of the central support segment (4) have on their respective outsides a contact surface (45) for a side arm (5), which is provided with a large number of through-holes (46).
  • the center support segment (4) also has a stiffening web plate (47) which is supported against the two frame web plates (43, 44) and stiffens the center support segment (4) against torsion about the longitudinal axis (A) of the underframe.
  • FIG 3 is it off figure 1 already known perspective view of the underframe according to the invention formed from a central support (3) and two end-side head pieces (1, 2) with an additional cross member.
  • the crossbeam is formed from two side brackets (5) arranged axially symmetrically to one another with respect to the longitudinal axis (A) of the underframe or the center beam on both sides of a center beam segment (4).
  • the number and positioning of the side outriggers are in figure 3 only by way of example.
  • An underframe according to the invention can have a plurality of such lateral extensions at different positions in the area of the central section of the central support (3) between the two head pieces (1, 2), which also do not necessarily have to be arranged in pairs on both sides of the central support.
  • the specific number and positioning of the crossbeams depends on the structural requirements of the load handling unit to be placed on the subframe. It is easy for a person skilled in the art to understand that, in extreme cases, an underframe according to the invention can even be designed without any side arms, provided that the load-carrying unit is in a specific special case without additional load application points on the central beam.
  • each side arm has an upper support (51), a lower support (53) and stabilizing straps (52). While the upper support (51) is designed to rest against the vertical contact surface of a frame web plate (43, 44) of the central support segment (4) and to be fastened to it by means of knurled bolts, the lower support (53) is in addition to the horizontal support set up on its lower chord segment (42).
  • each side arm has a flange for attaching an external push-pull strap (63). Above this flange, ie as an extension of the upper chord (7), there is a hinge which protrudes laterally outwards, ie beyond the outer longitudinal member, for receiving a folding bolt (54).
  • the folding latch (54) is used to secure the load handling unit against slipping and/or lifting off.
  • FIG 5 a perspective view of an underframe according to the invention is shown with several crossbeams formed from side arms arranged symmetrically to one another, with all side arms at their ends lying on the outside in relation to the central beam segment (4) by means of a push-pull band (60, 62) each Vehicle side are connected.
  • the tension-compression straps (60, 63) fix the side arms against the longitudinal beams (61, 62) of the head pieces of the underframe.
EP21211627.1A 2020-12-18 2021-12-01 Châssis d'un véhicule ferroviaire Withdrawn EP4015340A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020134258.6A DE102020134258A1 (de) 2020-12-18 2020-12-18 Untergestell eines schienenfahrzeuges

Publications (1)

Publication Number Publication Date
EP4015340A1 true EP4015340A1 (fr) 2022-06-22

Family

ID=78820729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21211627.1A Withdrawn EP4015340A1 (fr) 2020-12-18 2021-12-01 Châssis d'un véhicule ferroviaire

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EP (1) EP4015340A1 (fr)
DE (1) DE102020134258A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6930111U (de) 1969-04-16 1972-11-23 Rheinstahl Ag Transporttechnik Untergestell fuer schienenfahrzeuge.
DD104053A1 (fr) 1973-05-10 1974-02-20
DE3911138A1 (de) * 1989-04-06 1990-10-11 Talbot Waggonfab Untergestell fuer zweiachsige eisenbahngueterwagen
DE4229481C1 (de) 1992-09-03 1994-01-05 Inst Schienenfahrzeuge Untergestell für Schienenfahrzeuge
DE4440425A1 (de) 1994-11-07 1996-05-09 Goerlitz Waggonbau Gmbh Untergestell für Schienenfahrzeuge
CN107600097A (zh) * 2017-10-20 2018-01-19 中车山东机车车辆有限公司 一种轻量化铁路漏斗货车底架及方法
WO2018219955A1 (fr) 2017-05-31 2018-12-06 Rail Cargo Wagon - Austria Gmbh Châssis pour un chariot à plate-forme
CN110065516A (zh) * 2019-04-16 2019-07-30 中车山东机车车辆有限公司 一种铁路模块化拼装底架及包括该底架的整车结构
DE102019105689B3 (de) 2019-03-06 2020-06-04 Deutsche Bahn Ag Untergestell eines Schienenfahrzeuges
CN111559402A (zh) * 2020-05-25 2020-08-21 中车山东机车车辆有限公司 一种全铆接模块化中梁结构、平车底架及铁路平车

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1420352A (en) 1921-10-17 1922-06-20 Gen American Tank Car Corp Underframe for cars
US2242727A (en) 1939-12-22 1941-05-20 Pennsylvania Railroad Co Welded bolster and cross-bearer construction
CN106828516B (zh) 2017-03-24 2020-01-31 中车眉山车辆有限公司 一种铁路非标集装箱运输平车

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6930111U (de) 1969-04-16 1972-11-23 Rheinstahl Ag Transporttechnik Untergestell fuer schienenfahrzeuge.
DD104053A1 (fr) 1973-05-10 1974-02-20
DE3911138A1 (de) * 1989-04-06 1990-10-11 Talbot Waggonfab Untergestell fuer zweiachsige eisenbahngueterwagen
DE4229481C1 (de) 1992-09-03 1994-01-05 Inst Schienenfahrzeuge Untergestell für Schienenfahrzeuge
DE4440425A1 (de) 1994-11-07 1996-05-09 Goerlitz Waggonbau Gmbh Untergestell für Schienenfahrzeuge
WO2018219955A1 (fr) 2017-05-31 2018-12-06 Rail Cargo Wagon - Austria Gmbh Châssis pour un chariot à plate-forme
CN107600097A (zh) * 2017-10-20 2018-01-19 中车山东机车车辆有限公司 一种轻量化铁路漏斗货车底架及方法
DE102019105689B3 (de) 2019-03-06 2020-06-04 Deutsche Bahn Ag Untergestell eines Schienenfahrzeuges
CN110065516A (zh) * 2019-04-16 2019-07-30 中车山东机车车辆有限公司 一种铁路模块化拼装底架及包括该底架的整车结构
CN111559402A (zh) * 2020-05-25 2020-08-21 中车山东机车车辆有限公司 一种全铆接模块化中梁结构、平车底架及铁路平车

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