EP4079593A1 - Véhicule ferroviaire pourvu de mise à la terre sans fil - Google Patents

Véhicule ferroviaire pourvu de mise à la terre sans fil Download PDF

Info

Publication number
EP4079593A1
EP4079593A1 EP22169782.4A EP22169782A EP4079593A1 EP 4079593 A1 EP4079593 A1 EP 4079593A1 EP 22169782 A EP22169782 A EP 22169782A EP 4079593 A1 EP4079593 A1 EP 4079593A1
Authority
EP
European Patent Office
Prior art keywords
frame
rail vehicle
electrically conductive
sleeve
contact
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
EP22169782.4A
Other languages
German (de)
English (en)
Other versions
EP4079593B1 (fr
EP4079593A8 (fr
Inventor
Klaus Stegemann
Gerrit Koopmann
Jens Lörrakker
Arnold Belting
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.)
Windhoff Bahn und Anlagentechnik GmbH
Original Assignee
Windhoff Bahn und Anlagentechnik GmbH
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 Windhoff Bahn und Anlagentechnik GmbH filed Critical Windhoff Bahn und Anlagentechnik GmbH
Publication of EP4079593A1 publication Critical patent/EP4079593A1/fr
Publication of EP4079593A8 publication Critical patent/EP4079593A8/fr
Application granted granted Critical
Publication of EP4079593B1 publication Critical patent/EP4079593B1/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
    • 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
    • B61F5/50—Other details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail

Definitions

  • the invention relates to a rail vehicle according to the preamble of claim 1.
  • Generic rail vehicles are known from practice.
  • the elements of the supporting structure of the rail vehicle are referred to as the frame, and the components, assemblies or modules that are attached to this supporting structure are referred to as the superstructure.
  • Bolts are used for attachment, for example rivets or typically screws.
  • the elements of the rail vehicle that are arranged between the load-bearing structure and the rails on which the rail vehicle runs are referred to as running gear, which is also held on the load-bearing structure.
  • the superstructures are connected to the frame via grounding cables, which are connected to at least one or screwed at both ends to the respective element of the rail vehicle. Since both the rails, the chassis and the frame are made of steel, i.e. electrically conductive materials, the grounding cable can be used to ensure that the body is grounded, since there is an electrically conductive connection from the body via the frame and the chassis to the Rails, and is given by means of the rails to the ground.
  • the grounding cables have an effective cross-section of 95 mm 2 or more.
  • the problem here is that the grounding cables can be detached from the rail vehicle by metal thieves. Since, apart from the now impaired grounding, the rail vehicle is still fully functional, there is a risk that the removal of the grounding cable will go unnoticed on the one hand, and on the other hand there may be a risk that the rail vehicle will continue to be used despite the fact that the grounding cable has been lost is, so that ultimately the staff of the rail vehicle is exposed to an increased risk.
  • grounding parts each have a grounding holder which is designed in the manner of a console and to which a grounding cable referred to as a grounding cable can be screwed.
  • a fastener which consists of a blind rivet nut and a screwed-in fastening screw. Ground shoes at the ends of ground wires are clamped between the blind rivet nut and the head of the mounting screw.
  • the screw is not used to fasten the components, but the fastening element is used to create an electrical ground point, i.e. for the electrically conductive attachment of the ground shoes in a sheet metal or other component of a motor vehicle, especially in the case of repairs to replace torn-off earth bolts.
  • the invention is based on the object of improving a generic rail vehicle in such a way that it enables reliable and permanently ensured grounding.
  • the invention proposes not to use external, separate grounding cables, but instead to provide contact elements made of an electrically conductive and corrosion-resistant material where there are contact surfaces anyway.
  • corrosion-resistant means that the contact elements are not only protected against corrosion at the time of their installation, but also fundamentally due to their material properties under the conditions occurring during operation of the rail vehicle.
  • protection against corrosion means that the relevant contact element is not destroyed by corrosion.
  • additional components such as the above-mentioned grounding parts and grounding holders known from rail vehicles, which are adapted to the use of grounding cables in a manner known per se, can therefore be omitted.
  • the present proposal does not require an additional grounding bracket. Instead, the supporting surface that is required anyway to attach the body to the vehicle frame is used to ground the components.
  • the specially provided fastening elements which are also mentioned above and are intended to enable the electrically conductive connection of grounding shoes instead of a grounding bolt, i.e. are also adapted to the use of grounding cables, can also be omitted.
  • the attachment points that are required anyway, where the body is attached to the vehicle frame are used to ground the components.
  • No components of the screw connection such as a blind rivet nut and a fastening screw screwed into it, are used for grounding, but rather the already mentioned contact surfaces where the body rests on the vehicle frame. It is advantageous that liquids penetrating the screw connection cannot affect the grounding. It is therefore not necessary to use corrosion-resistant screws, so that - e.g. B.
  • the contact elements are pressed together in an electrically conductive manner in that the connection is made by means of bolts at the connection points, for example where the structure is connected to the frame, so that the result is that the contact surfaces are held in electrically conductive contact by means of the bolts .
  • the contact elements also connect electrically conductively to the part of the rail vehicle to which they are attached, ie are electrically conductively connected either to the structure or to the frame.
  • the inventive design of the rail vehicle firstly simplifies the assembly of the rail vehicle, since when the body is attached to the frame, which is required in any case, grounding is automatically guaranteed at the same time without the need for additional assembly steps such as the assembly of a grounding cable.
  • grounding of the superstructure is guaranteed as long as the superstructure is attached to the rail vehicle frame.
  • the rail vehicle is better protected against vandalism, since no separate grounding cables are used that could be dismantled.
  • the contact elements are well protected in the area of the connection points, where the body is connected to the frame of the rail vehicle by means of bolts. This improved protection against vandalism on the one hand improves the safety for the personnel of the rail vehicle and on the other hand reduces the maintenance effort that would otherwise be required and that would result from the necessary replacement of grounding cables.
  • the rail vehicle can be designed according to the invention in that in the area of fastening points, for example screwing points, stainless steel sheets are provided on the frame on the one hand and on the body on the other hand, which come into contact with one another when the body is attached to the frame at the fastening points is connected.
  • fastening points for example screwing points
  • stainless steel sheets are provided on the frame on the one hand and on the body on the other hand, which come into contact with one another when the body is attached to the frame at the fastening points is connected.
  • a particularly reliable contact is made possible by inserting an electrically conductive sleeve, which forms the contact element of the frame, into a hole in the frame that is provided for receiving the bolts.
  • an electrically conductive sleeve which forms the contact element of the frame
  • Such sleeves can be provided as contact elements.
  • the sleeve has an inner diameter such that the bolt can be inserted into the sleeve and can pass through the sleeve.
  • the sleeve is in turn electrically conductively connected to the frame. The contact pressure when making the screw connection ensures excellent electrical contact between the screw and the sleeve for grounding.
  • the frame is preferably free of a surface coating in the area in which it contacts the sleeve.
  • the sleeve advantageously connects to the frame at both of its ends in a watertight manner.
  • the sleeve can be welded into the frame of the rail vehicle, for example, so that it connects to the frame at both ends in a watertight and electrically conductive manner.
  • separate sealing elements can be used, such as e.g. O-rings or the like, but in particular also electrically conductive sealing elements such as e.g. copper rings.
  • the corrosion-resistant contact elements can consist, for example, of an aluminum or copper alloy, which can have excellent electrical conductivity due to their aluminum or copper components.
  • Such materials such as aluminum or copper oxidize, like steel, so they are ultimately not corrosion-free, but they form an oxide layer on their surface, which protects the rest of the material from further oxidation, so that these materials are corrosion-resistant in the sense of the present proposal .
  • the oxide layer known as rust does not form such a protection on most types of steel, so that the rusting component in most steel alloys is destroyed by rust and is therefore neither corrosion-free nor corrosion-resistant.
  • an embodiment of the contact elements containing aluminum and copper can consist in that a basic component made of aluminum - e.g. a plate - is galvanically provided with a surface layer containing copper, which can have a layer thickness of about 1 mm, for example.
  • a basic component made of aluminum - e.g. a plate - is galvanically provided with a surface layer containing copper, which can have a layer thickness of about 1 mm, for example.
  • a basic component made of aluminum - e.g. a plate - is galvanically provided with a surface layer containing copper, which can have a layer thickness of about 1 mm, for example.
  • Such an aluminum component can be used, for example, if it is to be welded as a contact element to a vehicle component that is also made of aluminum, as can be provided for components of the body, for example, for weight reasons, e.g. for a platform.
  • the copper coating can be removed mechanically where the contact element is to be welded to the vehicle component
  • the contact elements can preferably consist of a rustproof high-grade steel alloy, so that the contact element is both corrosion-resistant and corrosion-free. This ensures good electrical conductivity, which is also maintained over the entire service life, since no oxide layer is formed on the surface of the stainless steel contact element, which has different electrical properties than the base material below the surface.
  • a good electrical contact between the sleeve and the frame can be made possible by the sleeve making electrically conductive contact with the frame along its circumference.
  • the sleeve can be pressed into the bore of the frame.
  • the sleeve can have a peripheral collar on the side facing the structure, so that on the frame of the Rail vehicle as large a contact surface as possible is provided, which can be applied to a corresponding contact surface of the structure when the structure is connected to the frame.
  • the sleeves mentioned above can be dispensed with and the number of components required can be reduced if a plate forms the frame-side contact element.
  • the plate is placed on the frame and thus replaces the collar of one of the sleeves mentioned, which otherwise rests on the frame.
  • the plate can be dimensioned so large that it extends over two or more bores which are arranged in the frame for receiving the bolts, so that accordingly several sleeves can be replaced by one plate. If a suitable material is selected, the plate can be welded to the frame all the way around, so that moisture cannot penetrate it and the inner surfaces of the bores provided for receiving the bolts are protected from corrosion.
  • the drawing shows a section of a rail vehicle 1 in the form of a vertical section through the area of two screw connections at which a superstructure 2 is connected to a frame 3 of the rail vehicle 1 .
  • the structure 2 can be, for example, a housing of a specific unit, but the structure 2 shown can also be a fastening tab which is part of a larger component.
  • This fastening strap is designed as a welded construction and has a cross section similar to a double T-beam.
  • the region of the frame 3 shown can be designed, for example, as the upper chord of a vehicle frame.
  • the frame 3 has a bore 4 at each of the two screwing points.
  • the diameter of the bore 4 is dimensioned so large that a free space around a bolt 5 remains.
  • the bolts 5 are designed as screws.
  • Spacers 6 and 8 made of different materials are arranged between a nut 7 and the frame 3 and between the screw head of the bolt 5 and the adjacent section of the structure 2 located under the screw head, which are used for load distribution and also for sealing, so that For example, the surface of the frame 3 in the area of the bore 4 can be sealed downwards by the intermediate disks 6 .
  • a plate 10 is located on the upper side of the frame 3, ie towards the structure 2, so that a large-area contact area is provided.
  • the plate 10 can be welded to the frame 3 along the outer circumference in order to ensure a watertight connection of the plate 10 to the frame 3, so that the inner surfaces of the bores 4 are protected against corrosion.
  • the plate 10 represents a contact element of the frame 3, against which a contact element of the structure 2, which is designed as a plate 9, bears in an electrically conductive manner.
  • the two plates 9 and 10 are made of stainless steel and are therefore resistant to corrosion.
  • the plate 9 has holes through which the two bolts 5 extend, so that when the screw connection is complete, the contact elements of the structure 2 and the frame 3, namely the plates 9 and 10, are pressed together and create an electrically conductive connection that forms a section a grounding of the rail vehicle 1 forms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Elimination Of Static Electricity (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Body Structure For Vehicles (AREA)
EP22169782.4A 2021-04-23 2022-04-25 Véhicule ferroviaire pourvu de mise à la terre sans fil Active EP4079593B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021110519.6A DE102021110519A1 (de) 2021-04-23 2021-04-23 Schienenfahrzeug mit kabelloser Erdung

Publications (3)

Publication Number Publication Date
EP4079593A1 true EP4079593A1 (fr) 2022-10-26
EP4079593A8 EP4079593A8 (fr) 2022-12-14
EP4079593B1 EP4079593B1 (fr) 2026-01-07

Family

ID=81748818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22169782.4A Active EP4079593B1 (fr) 2021-04-23 2022-04-25 Véhicule ferroviaire pourvu de mise à la terre sans fil

Country Status (3)

Country Link
EP (1) EP4079593B1 (fr)
DE (1) DE102021110519A1 (fr)
DK (1) DK4079593T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024141168A1 (fr) * 2022-12-28 2024-07-04 Sew-Eurodrive Gmbh & Co. Kg Système de transport comprenant une paire de rails et un véhicule ferroviaire

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29601672U1 (de) * 1996-02-01 1997-06-05 Duewag Ag, 47829 Krefeld Wagenkasten eines Schienenfahrzeuges mit Erdungsteilen
DE19603511A1 (de) 1996-02-01 1997-08-07 Duewag Ag Wagenkasten eines Schienenfahrzeuges mit Erdungsteilen
DE102011051137A1 (de) 2011-06-17 2012-12-20 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Befestigungselement
EP2894719A1 (fr) * 2014-01-13 2015-07-15 Bombardier Transportation GmbH Dispositif de déviation d'un courant de court-circuit
WO2017102803A1 (fr) * 2015-12-16 2017-06-22 Siemens Ag Österreich Caisse de véhicule ferroviaire munie d'un point de raccordement à la terre
WO2019016347A1 (fr) * 2017-07-21 2019-01-24 Siemens Aktiengesellschaft Dispositif de mise à la terre pour véhicules

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208489367U (zh) * 2018-03-26 2019-02-12 青岛四方庞巴迪铁路运输设备有限公司 轨道车辆整车接地装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29601672U1 (de) * 1996-02-01 1997-06-05 Duewag Ag, 47829 Krefeld Wagenkasten eines Schienenfahrzeuges mit Erdungsteilen
DE19603511A1 (de) 1996-02-01 1997-08-07 Duewag Ag Wagenkasten eines Schienenfahrzeuges mit Erdungsteilen
DE102011051137A1 (de) 2011-06-17 2012-12-20 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Befestigungselement
EP2894719A1 (fr) * 2014-01-13 2015-07-15 Bombardier Transportation GmbH Dispositif de déviation d'un courant de court-circuit
WO2017102803A1 (fr) * 2015-12-16 2017-06-22 Siemens Ag Österreich Caisse de véhicule ferroviaire munie d'un point de raccordement à la terre
WO2019016347A1 (fr) * 2017-07-21 2019-01-24 Siemens Aktiengesellschaft Dispositif de mise à la terre pour véhicules

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024141168A1 (fr) * 2022-12-28 2024-07-04 Sew-Eurodrive Gmbh & Co. Kg Système de transport comprenant une paire de rails et un véhicule ferroviaire

Also Published As

Publication number Publication date
DE102021110519A1 (de) 2022-10-27
EP4079593B1 (fr) 2026-01-07
DK4079593T3 (da) 2026-03-30
EP4079593A8 (fr) 2022-12-14

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