EP0582888A1 - Contact de mise à la terre - Google Patents

Contact de mise à la terre Download PDF

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Publication number
EP0582888A1
EP0582888A1 EP93111965A EP93111965A EP0582888A1 EP 0582888 A1 EP0582888 A1 EP 0582888A1 EP 93111965 A EP93111965 A EP 93111965A EP 93111965 A EP93111965 A EP 93111965A EP 0582888 A1 EP0582888 A1 EP 0582888A1
Authority
EP
European Patent Office
Prior art keywords
contact
wheel axle
earth
disk
carbon material
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
EP93111965A
Other languages
German (de)
English (en)
Other versions
EP0582888B1 (fr
Inventor
Ulrich Dr. Wiessler
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.)
Schunk Bahn und Industrietechnik GmbH Germany
Original Assignee
Schunk Bahn und Industrietechnik GmbH Germany
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6882603&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0582888(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schunk Bahn und Industrietechnik GmbH Germany filed Critical Schunk Bahn und Industrietechnik GmbH Germany
Publication of EP0582888A1 publication Critical patent/EP0582888A1/fr
Application granted granted Critical
Publication of EP0582888B1 publication Critical patent/EP0582888B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B61F15/00—Axle-boxes
    • B61F15/20—Details
    • B61F15/28—Axle-boxes modified to ensure electrical conductivity

Definitions

  • the invention relates to a grounding contact for the transmission of currents between stationary vehicle parts of an electrically driven vehicle such as an electric locomotive or traction and travel vehicle and its rotating wheel axis comprising at least one carbon brush which is pressurized in the direction of the wheel axis and which originates directly or indirectly from the wheel axis Contact surface is present.
  • Working currents from electrically powered vehicles can be returned to the running rail and thus to the energy source via axle shafts and axle wheels.
  • the transfer from the stationary vehicle parts to the rotating axles takes place with special current bridges, which are usually referred to as reverse current / grounding contacts.
  • the roller bearings of the axes can be in the useful current or interference current circuit.
  • the reverse current / earth contact must form a low-resistance bridge. If there is a voltage above the bearing from e.g. 1 V (Fritt voltage) begins the current flow through the bearing. Coupled with a sudden increase in the amount of current, the value of the transition voltage then drops to only approx. 0.5 V.
  • Reverse current / grounding contacts should establish a good and safe electrical connection between the reverse current connection on the vehicle and the wheel axle in a defined current path in all operating situations of the vehicle.
  • the current-conducting carbon brush rests on a contact disk, which in turn is connected via e.g. a flange is connected to the wheel axle.
  • the contact disc is made of steel or non-ferrous metal. Due to the sliding of the carbon brush on the rotating contact disk, which is made of steel or non-ferrous metal and forms the contact surface, there is wear due to the dissimilar materials, which necessitates frequent maintenance intervals.
  • the object of the present invention is to develop a grounding contact of the type described in the introduction in such a way that the carbon brush is reduced in wear in order to be able to considerably increase the maintenance intervals.
  • the object is achieved in that the contact surface consists of or contains carbon material.
  • the contact surface is the brush-side surface of a contact disk which is connected directly or indirectly to the wheel axle.
  • the contact disk itself preferably consists of carbon material.
  • the contact disk is connected directly or indirectly to the wheel axle by means of gluing, soldering or mechanical fastening.
  • the contact disk can be connected to a flange element extending from the wheel axle or even form a unit with it.
  • contact washers and the flange element form a unit, this itself consists of carbon material.
  • the contact surface of the contact disk with the flange element is on the one hand flat and on the other hand is metallized.
  • the latter can be e.g. galvanic copper plating or flame sprayed copper plating. This improves the contact resistance between the contact disk made of carbon material and the flange element made of metal.
  • Carbon / graphite or electrographite is preferably selected as the carbon material for the contact surface or the contact disk or the unit consisting of contact disk and flange element.
  • Carbon / graphite is a material that is fired up to 1,220 ° C, which was formerly known as "hard-coal”.
  • a reverse current / grounding contact - partially broken away - is shown, which comprises high-carbon block carbon brushes (10), (12), which by corresponding spring elements acting directly on the respective head of the carbon brush (10) and (12) in the axial direction and centrically to the wheel axis (14) against a rotating contact disc (16).
  • roller band springs (19) and (20) are used for pressurizing.
  • the contact disk (16) is connected to a flange element (18) via a screw (22), the flange element (18) being connected to the wheel axle (14) via screws (24) and (26).
  • a pin element (28) is provided which extends from the contact disk (16) into the flange element (18).
  • the contact disk (16) consists of carbon material such as carbon / graphite or electrographite, so that the carbon brushes (10) and (12) are supported on a contact surface (30) which is also made of carbon material and slide along it. This results in a reduction in wear by a factor of 3 to 4 compared to contact surfaces made of metal.
  • the contact disk (16) is not to be mechanically fastened via the screw (22), there is also the possibility of the contact disk (16) with the facing flat surface (32) of the section of the flange element which is retracted in the direction of the axis (14) (18) e.g. conductive to glue or solder.
  • the superimposed surfaces of the contact disk (16) and the flange element (18) are flat, i.e. the surface (32) of the flange element ( 18) and the contact surface (34) of the contact disk (16) resting on this.
  • the contact surface (34) can be metallized. This can be done by galvanic copper plating and flame sprayed copper plating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Elimination Of Static Electricity (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Motor Or Generator Frames (AREA)
EP93111965A 1992-08-13 1993-07-27 Contact de mise à la terre Expired - Lifetime EP0582888B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9210799U DE9210799U1 (de) 1992-08-13 1992-08-13 Erdungskontakt
DE9210799U 1992-08-13

Publications (2)

Publication Number Publication Date
EP0582888A1 true EP0582888A1 (fr) 1994-02-16
EP0582888B1 EP0582888B1 (fr) 1997-06-18

Family

ID=6882603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93111965A Expired - Lifetime EP0582888B1 (fr) 1992-08-13 1993-07-27 Contact de mise à la terre

Country Status (3)

Country Link
EP (1) EP0582888B1 (fr)
DE (2) DE9210799U1 (fr)
ES (1) ES2104005T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617710C1 (de) * 1996-05-03 1997-09-11 Schunk Metall & Kunststoff Erdungskontakt
DE10003007A1 (de) * 2000-01-25 2001-08-09 Schunk Metall & Kunststoff Erdungskontakt
CN103183040A (zh) * 2011-12-30 2013-07-03 南车青岛四方机车车辆股份有限公司 轨道车辆接地装置碳粉收集装置及其方法
CN105059293A (zh) * 2015-08-29 2015-11-18 中国北车集团大连机车车辆有限公司 内燃机车防雷装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19654339B4 (de) * 1996-12-24 2004-12-02 G. Dietrich Gmbh Erdungskontakteinrichtung
DE19920384C1 (de) * 1999-05-04 2000-08-03 Stemmann Technik Gmbh Erdungskontakt
DE10012739B4 (de) * 2000-03-16 2004-12-30 Schunk Metall Und Kunststoff Gmbh Erdungskontakt sowie Verfahren zur Herstellung eines Gleitkörpers wie einer Kontaktscheibe eines Erdungskontaktes
DE10013491C2 (de) * 2000-03-20 2002-10-24 Schunk Metall & Kunststoff Erdungskontakt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1953043A1 (de) * 1968-10-22 1970-05-06 Ferraz & Cie Lucien Strombruecke fuer Achslager von elektrischen Schienenfahrzeugen
DE4026951A1 (de) * 1990-08-25 1992-02-27 Nettelhoff Friedrich Fa Plankollektor fuer einen elektromotor oder -generator
EP0528356A1 (fr) * 1991-08-19 1993-02-24 Schunk Metall und Kunststoff GmbH Dispositif de fixation pour des balais utilisés dans des véhicules ferroviaires comme contact pour le courant de retour et/ou de mise à la terre et procédé pour la production d'un tel dispositif de fixation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1953043A1 (de) * 1968-10-22 1970-05-06 Ferraz & Cie Lucien Strombruecke fuer Achslager von elektrischen Schienenfahrzeugen
DE4026951A1 (de) * 1990-08-25 1992-02-27 Nettelhoff Friedrich Fa Plankollektor fuer einen elektromotor oder -generator
EP0528356A1 (fr) * 1991-08-19 1993-02-24 Schunk Metall und Kunststoff GmbH Dispositif de fixation pour des balais utilisés dans des véhicules ferroviaires comme contact pour le courant de retour et/ou de mise à la terre et procédé pour la production d'un tel dispositif de fixation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617710C1 (de) * 1996-05-03 1997-09-11 Schunk Metall & Kunststoff Erdungskontakt
US5924871A (en) * 1996-05-03 1999-07-20 Schunk Metall Und Kunststoff Gmbh Grounding contact
DE10003007A1 (de) * 2000-01-25 2001-08-09 Schunk Metall & Kunststoff Erdungskontakt
DE10003007C2 (de) * 2000-01-25 2002-06-13 Schunk Metall & Kunststoff Erdungskontakt
US6443744B1 (en) 2000-01-25 2002-09-03 Schunk Metall Und Kunststoff Gmbh Grounding contact
CN103183040A (zh) * 2011-12-30 2013-07-03 南车青岛四方机车车辆股份有限公司 轨道车辆接地装置碳粉收集装置及其方法
CN103183040B (zh) * 2011-12-30 2016-01-20 南车青岛四方机车车辆股份有限公司 轨道车辆接地装置碳粉收集装置及其方法
CN105059293A (zh) * 2015-08-29 2015-11-18 中国北车集团大连机车车辆有限公司 内燃机车防雷装置

Also Published As

Publication number Publication date
DE9210799U1 (de) 1992-12-03
DE59306773D1 (de) 1997-07-24
ES2104005T3 (es) 1997-10-01
EP0582888B1 (fr) 1997-06-18

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