EP3643577A1 - Structure d'enveloppe pour une caisse de véhicule et procédé de fabrication d'une structure d'enveloppe - Google Patents

Structure d'enveloppe pour une caisse de véhicule et procédé de fabrication d'une structure d'enveloppe Download PDF

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Publication number
EP3643577A1
EP3643577A1 EP19204383.4A EP19204383A EP3643577A1 EP 3643577 A1 EP3643577 A1 EP 3643577A1 EP 19204383 A EP19204383 A EP 19204383A EP 3643577 A1 EP3643577 A1 EP 3643577A1
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EP
European Patent Office
Prior art keywords
envelope structure
structure element
receptacle
wall
envelope
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.)
Granted
Application number
EP19204383.4A
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German (de)
English (en)
Other versions
EP3643577B1 (fr
Inventor
Hendrik Seidler
Sven Uschmann
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.)
Alstom Transportation Germany GmbH
Original Assignee
Bombardier Transportation GmbH
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Filing date
Publication date
Application filed by Bombardier Transportation GmbH filed Critical Bombardier Transportation GmbH
Publication of EP3643577A1 publication Critical patent/EP3643577A1/fr
Application granted granted Critical
Publication of EP3643577B1 publication Critical patent/EP3643577B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/041—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures with bodies characterised by use of light metal, e.g. aluminium

Definitions

  • the invention relates to an envelope structure for a car body for a vehicle, and to a method for producing an envelope structure.
  • Envelope structures of car bodies are often formed from double-layer structures such as double-walled extruded aluminum profiles.
  • double-walled structure is used to produce sufficient strength while at the same time being lightweight.
  • the outer and inner walls of the extruded aluminum profiles are usually connected to one another via struts which transmit forces introduced into the shell structure or distribute them to the outer and inner walls.
  • the extruded profiles are produced to the required length using the extrusion process and then placed on top of one another and welded together to produce the shell structure, that is to say car body floors, walls and ceilings. Due to the double-walled design of the extruded aluminum profiles, it is necessary that both the outer and the inner walls of the extruded profiles placed on top of each other are connected to each other in a force-conducting manner. This is usually done by means of weld seams which have to be applied both from the outside and from the inside of the car body during the manufacture of the car body.
  • a problem in the manufacture of car bodies using weld seams on both sides is the limited space available in the interior of the car body, which makes the automated production of weld seams by welding robots difficult.
  • the welding process that takes place from the inside makes it difficult or impossible to preassemble components on the shell structure elements, on the one hand because of the space required for welding, and on the other hand because of the heat input resulting from the welding, which can damage these components.
  • the DE 10 2007 048 759 A1 and the US 2003/0042293 A1 disclose a method for producing a car body, in which two envelope structure elements positioned relative to one another in an assembly position together form an access opening through which the inner walls of the envelope structure elements can be welded to one another from outside the car body. After this Welding the inner walls, this access opening is closed with a metallic cover. The cover is then welded to the two shell structure elements and forms part of the structure of the shell of the car body.
  • a similar process is shown in the EP 3 272 616 A1 .
  • a metallic structural element is first inserted into the access opening, which is welded to the adjacent envelope structural elements and produces the structural strength.
  • the weld seams are spaced from the actual edge of the access opening so that the heat input at the edge of the access opening remains low.
  • the shell structure elements can consequently be painted before the welding process without the paint layer being damaged during the subsequent welding process.
  • the access opening is then closed by a cover which is adhesively connected to the envelope structure elements.
  • a disadvantage of the known solutions for producing an envelope structure is the effort required. Additional components must be provided and welded to the envelope structure in order to create the space required for welding the inner wall.
  • the invention is therefore based on the object of providing a casing structure for a car body which is simple and inexpensive to produce.
  • the solution to the problem for an envelope structure is that the first envelope structure element is provided with an extension that extends between the outer wall and the inner wall in an insertion direction, and the second envelope structure element is provided with a receptacle that opens between the outer wall and the inner wall against the insertion direction Insert the extension.
  • the extension comprises a form-locking means and the receptacle is filled with a filling material.
  • the extension accommodated in the receptacle and the filler material at least in sections surrounding the form-fit means thus produce a form-fit.
  • the first envelope structure element and the second envelope structure element are connected to one another by a weld seam.
  • the weld seam and the positive connection are preferably arranged far apart and / or on opposite sides of a center plane of the envelope structure.
  • the positive connection is preferably arranged close to an edge region of the envelope structure, in particular on an outside of the envelope structure, which points outwards when the car body is mounted.
  • the extension of the first envelope structure element is first introduced into the receptacle of the second envelope structure element.
  • the receptacle of the second envelope structure element is then filled with a filler material, in particular at low temperatures or cold-curing.
  • the first envelope structure element with the second envelope structure element is one-sided, i.e. welded from one side. Preferably only one weld is created.
  • the envelope structure elements can be welded before or after the receptacle is filled, wherein the envelope structure elements are preferably welded after the receptacle has been filled and the filler material has hardened because the envelope structure elements are thus already fixed in their final position during the welding process.
  • the hardened filling material finally forms a positive connection with the positive-locking means located on the extension.
  • the envelope structure according to the invention can be suitable for a car body of a rail vehicle or for other vehicles such as e.g. Buses.
  • the extension can have an indentation which extends essentially perpendicular to the direction of insertion and which forms the form-fitting means.
  • the form-locking means can be formed by an elevation or a through opening.
  • the extension can have an undercut into which the filler material can flow. After the extension has been introduced into the receptacle, the filling material can be conveyed into the receptacle under pressure in order to ensure that the filling material completely surrounds or adjoins the form-locking means.
  • the filling material can also form-fit with the receptacle.
  • the receptacle can have a receptacle opening for inserting the extension.
  • the receptacle preferably widens in the insertion direction from the receptacle opening or the receptacle tapers against the insertion direction.
  • a filler material filled and hardened in the receptacle can therefore not be pressed out through the receptacle opening and forms a positive connection with the receptacle.
  • At least one inner wall of the receptacle can be spaced apart from the extension or the form-fitting means. The distance ensures that the filler material completely surrounds the positive locking means and forms an effective positive locking with it.
  • the positive locking means is spaced over its entire circumference from the inner wall or the inner walls of the receptacle.
  • the receptacle is designed such that the filling material can be conveyed into the receptacle under pressure.
  • the second envelope structure element can be provided with a filling opening which penetrates the outer wall or inner wall of the second envelope structure element and leads into the receptacle.
  • a plurality of filling openings can be provided.
  • the filler openings can preferably be arranged in a transverse direction of the envelope structure element at the same height as the positive locking means.
  • the insertion direction in which the extension is inserted into the receptacle, runs essentially parallel to the outer wall and / or to the inner wall of the first envelope structure element.
  • the extension is ideally accommodated in the receptacle when the outer walls and / or inner walls of the envelope structure elements are aligned.
  • the extension can thus be inserted into the receptacle or positioned in the receptacle via the alignment of the outer and / or inner walls.
  • the receptacle In order to stress the filling material in the hardened state predominantly under pressure and to reduce tensile and shear forces, the receptacle can expand conically or funnel-shaped starting from the receptacle opening.
  • the holder acts as a mold for the filling material.
  • the hardened state of the filling material can thus form a filling body which is at least partially conical.
  • a tensile force acting on the extension or the form-fitting means can thus continue as a compressive force on the conical inner surface of the receptacle via the conical surface of the packing.
  • the filling material can be adhesively connected to the extension and / or the receptacle.
  • the adhesive bond can be made directly over the filler material, e.g. using a hardening adhesive as filler.
  • the envelope structure is preferably welded on the outside.
  • the other side preferably the inside of the envelope structure, is positively connected via the extension in the first envelope structure element, the receptacle in the second envelope structure element and the filler material in the receptacle.
  • the positive connection can be made at least partially via the extension and a receiving opening of the receptacle.
  • the receiving opening into which the extension can be inserted, can have a width that is only slightly larger than the extension, in order to enable power transmission to be as free of play as possible.
  • the weld seam can be arranged on mutually opposite surfaces of the inner wall or the outer wall of the first shell structure element and the second shell structure element. Opposing surfaces of the outer walls of the first and second envelope structure elements are preferably welded to one another, while opposite surfaces of the inner walls have no weld seams.
  • the integral connection of the two shell structure elements can thus be produced from the outside alone.
  • the weld seam can be applied to the envelope structure from the outside in order to be able to provide sufficient space for welding devices or welding robots.
  • the first and / or second envelope structure elements are formed from extruded profiles, in particular aluminum extruded profiles. These can be produced efficiently, and high strength can be achieved with low weight.
  • the first envelope structure element including the extension and / or the second envelope structure element including the receptacle is formed by an extruded profile.
  • the extension and / or receptacle can accordingly extend over the entire length of the respective extruded profile. In order to be able to produce the form-locking means together with the envelope structure element in the extrusion process, this is preferably designed as a full body profile.
  • a weld pool safety device can be provided.
  • the weld pool fuse can preferably be formed by the first or second shell structure element and in particular be part of an extruded aluminum profile.
  • the first or the second envelope structure element can have an extension which engages behind the weld seam from the inside and is suitable for forming a weld pool lock.
  • the extension can preferably overlap the parting line between two walls to be welded by the first and second envelope structure element.
  • filling material is preferably a at low temperatures, e.g. at room temperature or cold curing material.
  • the filling material is liquid in a processing state at relatively low temperatures, in particular at temperatures below 300 ° C., preferably at temperatures below 200 ° C., most preferably at temperatures below 100 ° C.
  • the filler material can be liquid in a processing state at temperatures below 40 ° C.
  • the filling material can be designed to have an adhesive effect in order to adhesively fasten the extension in the receptacle.
  • the extension or the form-locking means can be held in the receptacle in a form-fitting and adhesive manner.
  • the filling material can comprise a cold-curing plastic, such as a thermoset.
  • fibers can be provided in the filler material to form a tensile fiber composite.
  • a pressure-resistant component can be added, such as sand, in particular quartz sand, ceramic or metal, in order to increase the compressive strength of the filling material.
  • the filling material can have a component that expands during curing.
  • a rail vehicle according to the invention has one of the above-described embodiments of an envelope structure according to the invention.
  • Fig. 1 shows the essential components for an envelope structure according to the invention, namely a first envelope structure element 2 and a second envelope structure element 3. Both the first envelope structure element 2 and the second envelope structure element 3 are double-walled.
  • the first shell structure element 2 has an outer wall 4 and an inner wall 5
  • the second shell structure element 3 has an outer wall 6 and an inner wall 7.
  • Outer walls 4, 6 and inner walls 5, 7 are connected to one another via struts 22, 23, which are located between outer walls 4, 6 and internal walls 5, 7 transmit occurring forces.
  • the struts 22, 23 can form a truss structure between the outer and inner walls. They can run horizontally or obliquely in the further course of the envelope structure elements 2, 3.
  • the first envelope structure element 2 and the second envelope structure element 3 are designed in such a way that they are placed on one another or inserted into one another in an assembly position and are aligned by guide surfaces.
  • an extension 8 is provided on the first envelope structure element 2 and a receptacle 9 on the second envelope structure element 3.
  • the receptacle 9 has a receptacle opening 16 through which the extension 8 can be inserted into the receptacle 9.
  • the extension 8 is part of the extruded profile from which the first envelope structure element 2 is formed and extends over the entire length of the envelope structure element 2.
  • the receiving opening 16 is part of the extruded aluminum profile, of which the second envelope structure element 3 is formed, and extends over the entire length of the second envelope structure element 3.
  • the width B of the receiving opening 16 is only slightly wider than the width b of the extension 8.
  • the extension 8 thus acts together with the receiving opening 16 as a guide for the first envelope structure element 2 in the second envelope structure element 3, the guidance restricting the movement of the first envelope structure element 2 in a transverse direction Q with respect to the second envelope structure element 3.
  • a clearance fit can be provided between the extension 8 and the receiving opening 16.
  • the movement of the envelope structure elements 2, 3 relative to one another is also limited in the insertion direction E. 8 support surfaces 17 are provided on both sides of the extension on the first envelope structure element 2, 16 support surfaces 18 on the second envelope structure element 3 on both sides of the receiving opening.
  • the first and second envelope structure elements 2, 3 are designed to be welded together.
  • a welding surface 19 for receiving a weld seam is arranged on the outer wall 4 of the first envelope structure element 2
  • a welding surface 20 is arranged on the second envelope structure element 3 an externally accessible recess for receiving the welding material is created.
  • the first envelope structure element 2 also has a weld pool safety device 21, which serves to collect welding material escaping during the welding process.
  • the weld pool fuse 21 is part of the first envelope structure element 2 and is produced with it in one operation in an extrusion process.
  • the weld pool fuse 21 extends in the insertion direction E and overlaps the weld joint between the envelope structure elements when the envelope structure is joined 2, 3.
  • a support surface 12 provided on the weld pool fuse 21 on the first envelope structure element 2 is arranged opposite the support surface 13 on the second envelope structure element 3 when the envelope structure is joined.
  • the support surfaces 12, 13 function like the extension 8 and the receptacle 9 as a guide and, in the case of an assembled envelope structure, produce a partial form-fit which defines the position of the envelope structure elements 2, 3 before manufacture of one that is also form-fitting or materially integral to one another in the direction of insertion.
  • a filling opening 14 is provided in the inner wall 7 of the second envelope structure element 3.
  • the filling opening 14 serves to introduce filling material into the receptacle 9 in order to establish a positive connection with the first envelope structure element 2 via the form-fitting means 10 on the extension 8.
  • the filler material can be supplied under pressure through the opening 14 in order to ensure complete filling of the receptacle 9 and, in the hardened state of the filler material, complete form-fitting engagement with the form-fitting means 10.
  • the filling material is preferably designed to be cold or hardenable at low temperatures in order to avoid additional thermal stress on the second shell structure element 3.
  • Fig. 2 shows a section of an assembled envelope structure, the envelope structure elements 2, 3 of which, according to the invention, are connected to one another in a form-fitting and material-locking manner to form an envelope structure 1.
  • the interlocking between the first cladding structure element 2 and the second cladding structure element 3 is achieved via the extension 8 with the interlocking means 10 and the filling material 24 accommodated in the receptacle 9.
  • the filling material 24 can be conveyed into the receptacle 9 via the filling opening 14. By conveying the filling material 24 under pressure, it is ensured that the form-locking means 10 is finally completely surrounded by the filling material 24.
  • the filling material 24 can in particular penetrate into the indentation 15 of the form-locking means 10. If the filler material 24 then hardens, it is positively connected to the form-locking means 10. At the same time, the filler material 24 in the hardened state is positively connected to the second shell structure element 3 via the receptacle 9.
  • the receptacle 9 tapers towards the top, that is, counter to the direction of insertion E.
  • Hardened filling material 24 located in the receptacle consequently also forms a positive fit with the receptacle 9 and cannot be displaced against the direction of insertion. Furthermore, part of the filling material 24 can remain in the filling opening after the filling process. over The filling material 24 in the filling opening 14 forms a further positive connection when the filling material 24 hardens.
  • the positive connections between the first shell structure element 2 and the filler material 24 and the second shell structure element 3 and the filler material 24 thus form a positive connection 25 between the first shell structure element 2 and the second shell structure element 3.
  • the filler material 24 can have an adhesive effect and the first shell structure element 2 via the extension 8 connect adhesively to the second envelope structure element 3.
  • the two outer walls 4, 6 of the envelope structure elements 2, 3 are connected to one another by a weld seam 11.
  • the weld seam 11 forms a material connection, which acts parallel to the positive connection 25 described above.
  • the weld seam 11 and the form-fitting connection 25 together form a sufficiently rigid connection, which enables the construction of an envelope structure 1 with high rigidity.
EP19204383.4A 2018-10-26 2019-10-21 Structure d'enveloppe pour une caisse de véhicule et procédé de fabrication d'une structure d'enveloppe Active EP3643577B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018126814.9A DE102018126814A1 (de) 2018-10-26 2018-10-26 Hüllstruktur für einen Wagenkasten und Verfahren zur Herstellung einer Hüllstruktur

Publications (2)

Publication Number Publication Date
EP3643577A1 true EP3643577A1 (fr) 2020-04-29
EP3643577B1 EP3643577B1 (fr) 2022-06-15

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EP19204383.4A Active EP3643577B1 (fr) 2018-10-26 2019-10-21 Structure d'enveloppe pour une caisse de véhicule et procédé de fabrication d'une structure d'enveloppe

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EP (1) EP3643577B1 (fr)
DE (1) DE102018126814A1 (fr)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11311218A (ja) * 1998-04-27 1999-11-09 Showa Alum Corp 中空パネルの結合構造
JP2000233285A (ja) * 1999-02-16 2000-08-29 Hitachi Ltd 摩擦撹拌接合方法
JP2001038478A (ja) * 1999-07-30 2001-02-13 Nippon Light Metal Co Ltd 中空パネル構造体とその製造方法及びその製造用中空押出形材
JP2002178169A (ja) * 2000-12-14 2002-06-25 Kobe Steel Ltd 輸送機用構造体及びその製造方法
DE10101362A1 (de) * 2001-01-13 2002-07-18 Siemens Duewag Gmbh Großräumiges Fahrzeug, insbesondere Schienenfahrzeug
US20030042293A1 (en) 2001-09-03 2003-03-06 Masakuni Ezumi Friction stir welding method and panel structure for friction stir welding
DE102007048759A1 (de) 2006-10-13 2008-04-17 Alstom Transport S.A. Verfahren zur Montage einer Struktur, die eine Außenseite und eine Innenseite aufweist und aus einer Anzahl von doppellagigen Elementen gebildet wird, wie etwa ein Gehäuse eines Schienenfahrzeugs, sowie dadurch erzielte Struktur
EP1931494A1 (fr) * 2005-10-06 2008-06-18 Euro-Composites S.A. Element d'assemblage
DE102007035772A1 (de) * 2007-07-27 2009-02-05 Siemens Ag Wagenkasten für ein Schienenfahrzeug
JP2012149427A (ja) * 2011-01-18 2012-08-09 Hitachi Metals Techno Ltd パネル構造
DE102011088509A1 (de) * 2011-12-14 2013-06-20 Siemens Aktiengesellschaft Schienenfahrzeugwagenkasten und Verfahren zu dessen Herstellung
EP3272616A1 (fr) 2016-07-19 2018-01-24 ALSTOM Transport Technologies Procédé d'assemblage de véhicule ferroviaire
US20180022365A1 (en) * 2015-01-30 2018-01-25 Siemens Aktiengesellschaft Wall Arrangement For A Vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937375C2 (de) * 1999-08-07 2003-09-18 Daimler Chrysler Ag Konstruktionsbauteil und Verfahren zu dessen Herstellung

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11311218A (ja) * 1998-04-27 1999-11-09 Showa Alum Corp 中空パネルの結合構造
JP2000233285A (ja) * 1999-02-16 2000-08-29 Hitachi Ltd 摩擦撹拌接合方法
JP2001038478A (ja) * 1999-07-30 2001-02-13 Nippon Light Metal Co Ltd 中空パネル構造体とその製造方法及びその製造用中空押出形材
JP2002178169A (ja) * 2000-12-14 2002-06-25 Kobe Steel Ltd 輸送機用構造体及びその製造方法
DE10101362A1 (de) * 2001-01-13 2002-07-18 Siemens Duewag Gmbh Großräumiges Fahrzeug, insbesondere Schienenfahrzeug
US20030042293A1 (en) 2001-09-03 2003-03-06 Masakuni Ezumi Friction stir welding method and panel structure for friction stir welding
EP1931494A1 (fr) * 2005-10-06 2008-06-18 Euro-Composites S.A. Element d'assemblage
DE102007048759A1 (de) 2006-10-13 2008-04-17 Alstom Transport S.A. Verfahren zur Montage einer Struktur, die eine Außenseite und eine Innenseite aufweist und aus einer Anzahl von doppellagigen Elementen gebildet wird, wie etwa ein Gehäuse eines Schienenfahrzeugs, sowie dadurch erzielte Struktur
DE102007035772A1 (de) * 2007-07-27 2009-02-05 Siemens Ag Wagenkasten für ein Schienenfahrzeug
JP2012149427A (ja) * 2011-01-18 2012-08-09 Hitachi Metals Techno Ltd パネル構造
DE102011088509A1 (de) * 2011-12-14 2013-06-20 Siemens Aktiengesellschaft Schienenfahrzeugwagenkasten und Verfahren zu dessen Herstellung
US20180022365A1 (en) * 2015-01-30 2018-01-25 Siemens Aktiengesellschaft Wall Arrangement For A Vehicle
EP3272616A1 (fr) 2016-07-19 2018-01-24 ALSTOM Transport Technologies Procédé d'assemblage de véhicule ferroviaire

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Publication number Publication date
EP3643577B1 (fr) 2022-06-15
DE102018126814A1 (de) 2020-04-30

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