EP1136340A2 - Contact de mise à la terre - Google Patents

Contact de mise à la terre Download PDF

Info

Publication number
EP1136340A2
EP1136340A2 EP01106770A EP01106770A EP1136340A2 EP 1136340 A2 EP1136340 A2 EP 1136340A2 EP 01106770 A EP01106770 A EP 01106770A EP 01106770 A EP01106770 A EP 01106770A EP 1136340 A2 EP1136340 A2 EP 1136340A2
Authority
EP
European Patent Office
Prior art keywords
contact
cover
disk
earth
contact element
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
EP01106770A
Other languages
German (de)
English (en)
Other versions
EP1136340A3 (fr
EP1136340B1 (fr
Inventor
Lothar Schneider
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
Application filed by Schunk Bahn und Industrietechnik GmbH Germany filed Critical Schunk Bahn und Industrietechnik GmbH Germany
Publication of EP1136340A2 publication Critical patent/EP1136340A2/fr
Publication of EP1136340A3 publication Critical patent/EP1136340A3/fr
Application granted granted Critical
Publication of EP1136340B1 publication Critical patent/EP1136340B1/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/64—Devices for uninterrupted current collection
    • 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 ground contact for the transmission of currents between fixed vehicle parts of an electrically powered vehicle, in particular intended for local rail traffic, and its rotating wheel axis, preferably with central recess on the ground contact side, coaxial with its central axis, preferably comprising a directly or indirectly starting from the wheel axle the recess covering contact disc, one with the stationary vehicle part cover connected like bearing housing, from which a contact element like carbon brush proceeds, as well as a pressure and spring element through which the contact element and the contact disk interact with each other when subjected to force.
  • Working currents from electrically powered vehicles can be via axle shafts and axle wheels be returned to the rail and thus to the energy source.
  • the transfer from the fixed vehicle parts on the rotating axles are made with special current bridges, which are commonly referred to as reverse current / ground contacts.
  • the roller bearings of axles can be in the emergency or fault current circuit.
  • the reverse current / grounding contact form a low-resistance bridge. If there is a queue above the warehouse Voltage starting at 1 V (Fritt voltage), for example, begins the current flow through the bearing. Coupled with a surge in the amount of current, the value of the transition voltage drops then only drops to approx. 0.5 V.
  • Reverse current / earth contacts should be good in all operating situations of the vehicle and secure electrical connection between the reverse current grounding connection on the vehicle and the wheel axle on a defined current path.
  • a carbon brush trained contact element on a contact disk which in turn, for example a flange is connected to the wheel axle.
  • the contact disc can be made of steel or Carbon exist.
  • Known grounding contacts whose main tasks are the transfer of Working current, transmission of signal current and vehicle or protective earthing are the DE-OS 1 953 043, DE 41 27 336 A1 or DE 92 10 799 Ul.
  • the axle has a central cutout in which an axle insert is inserted and is electrically and mechanically connected to the drive axle.
  • the contact disk is on the face of the pressure part assembled and secured against twisting by means of a dowel pin.
  • the contact disc itself is electrically connected to the axle insert via a power cable.
  • the present invention is based on the problem of an earth contact at the beginning mentioned type in such a way that a simplification of the structure and a problem-free Maintenance can be done without having to make changes to the height itself. At the same time, it is intended to ensure that jerky movements such as blows are met the contact element such as the carbon brush can be damped.
  • the problem is essentially solved in that the pressure element starts from the cover and which is penetrated by the central axis of the wheel axle or this surrounding contact element is coaxially acted upon in the direction of the contact disk.
  • the pressure element such as the helical compression spring
  • the cover which is preferably designed as a cover Earth contact, making easy maintenance possible.
  • a Maintenance is now only necessary to remove the cover.
  • Conventional MONAX ground contacts on the other hand, had to remove the cover and pulling out the axle insert also the strands connected to the wheel axle be solved.
  • the contact element can be acted upon centrally by the pressure and spring elements be, so that an equalization of the pressure transmission and thus also the wear of the contact element or the contact washers is given.
  • the contact disk is remote as a Contact element serving as a collar, such as a carbon brush from one of the Cover outgoing disc-shaped guide is slidably received.
  • a Contact element serving as a collar, such as a carbon brush from one of the Cover outgoing disc-shaped guide is slidably received.
  • the contact element like a carbon brush, is preferably cuboid, so that the guide corresponds to the cross-sectional geometry of the contact element Has recess as a rectangular recess, which prevents rotation of the contact element is given.
  • the collar that extends from the stimulus area remote from the contact disk results an assembly aid that ensures that the carbon brush is not pushed through the guide become.
  • the federal government serves to limit wear, so that it is ensured that the contact element, such as a carbon brush, is not worn to an extent can be that the pressed-in power cables directly with the contact disc come into contact.
  • the contact element has at least one cutout on the contact surface side Slit so that abrasion can be carried away without the desired flat Contact between the contact element and the contact disk is impaired by abrasion.
  • the spring element is preferably a helical compression spring, which is opposite the contact element is electrically insulated, in particular in a central from the Center axis penetrated recess of the contact element rests, the bottom one has electrically insulating insert or is designed as such, the insert Support for the spring element itself is.
  • a protrusion extends from the inside of the cover, that of the spring element is surrounded.
  • the cover is compared to the fixed housing part like a bearing housing spaced electrically insulating material existing ring, which ensures that defined current paths flow; because the contact element is like the carbon brush on the one hand via the guide and on the other hand as a support for the spring element Use electrically insulated from the cover, so that the current is exclusively over which leads from the contact element flows. There is consequently an earth contact available, which forms a low-resistance current bridge.
  • the contact disk has a centrally penetrating one Fastening element with the intermediate disk element covering the axis or the central recess is connected and that the contact element is in alignment with the fastening element aligned and this spaced surrounding recess such as through hole having. This measure ensures that the attachment to a Damage to the contact element does not result.
  • the cover should be like a bowl-shaped cover element over the sealing ring penetrating fasteners such as screws with the fixed vehicle part such Be connected to the bearing housing, the fasteners opposite each other Cover are electrically insulated. It is provided that between the cover and the fastener is a socket made of electrically insulating material runs. This measure also ensures that a desired defined current flow is ensured.
  • the ground contact according to the invention preferably consists of two preassembled units, one of which is the contact disc and the other the cover with the Includes spring element and the contact element. Furthermore, the intermediate ring itself part of the the cover comprehensive unit.
  • the contact element is preferably made of carbon and / or the contact plate at least on the contact element side also made of carbon or contains this, so that Contact element also consist of bronze graphite and / or the contact plate made of steel material.
  • the figures show the basic structure of a grounding contact 10 according to the invention in particular Intended for external rail vehicles with a current flow of up to preferably 300 A shown.
  • a defined current flow between should be via the ground contact 10 an axis 12 and a fixed housing part such as bearing housing 14 one electrically driven vehicle.
  • the axis 12 has one of its central axis 16 penetrated central recess 18, which is referred to as an intermediate plate Cover 20 can be closed, from which in turn a contact disk 22 extends Carbon material or containing it or for example made of steel. In this regard, however, reference is made to materials well known from grounding contacts.
  • the cover 24 With the bearing housing 14 is a cover 24 via fasteners such as screws 26 releasably connected.
  • the cover 24 - hereinafter called the cover - has one mounted earth contact 10 through the central axis 16 penetrated by inner projection 28 on, which serves as a fixation for a pressure element such as helical compression spring 30, which in turn acts on a contact element such as carbon brush 32, in the direction of the contact disk 22 to be applied. This ensures that the required electrically conductive contact between the contact disk 22 and carbon brush 32 and thus a low-resistance current bridge exists.
  • the carbon brush 32 is cuboid and has one remote from the contact disk Bund 34 on. Furthermore, the carbon brush 32 is made of a hard rubber material, for example existing disc element 36 guided added, which can be detached with the cover 24 connected is.
  • the guide 36 consequently has a recess, that of the cross-sectional geometry corresponds to the carbon brush 32. Due to the geometry of the carbon brush 32 the guide 36 simultaneously provides an anti-rotation device.
  • the carbon brush 32 also has a central bore 38 that is in relation to that on the contact disk 22 remote end face 40 of the carbon brush 32. Bottom side is the bore 38 through an insert made of electrically insulating material 40 covered, which serves as a support for the helical compression spring 30. Hence this is electrically insulated from the carbon brush 32.
  • the cover 24 has an inner circumferential cylindrical section 42, which of an intermediate ring 44 made of electrically insulating material is surrounded, the is penetrated by the screws 26. These are also in the area of the cover 24 surrounded by an insulating sleeve 46. This ensures that the cover 24 is opposite the bearing housing 14 is electrically insulated.
  • Strands 48 extend from the carbon brush 32 and are attached to the cover 24 by screws 50 are connected. Furthermore, the cover 24 has a connecting lug 52 which is electrically conductive is connected to earthing leads leading to the vehicle part in order to defined current paths to manufacture.
  • the carbon brush 32 has slots 54 on the contact surface side (FIG. 3) in order to be caused by abrasion To be able to discharge dust.
  • the desired surface contact is always between the contact disc 22 and the carbon brush 32 is ensured, which in turn the desired low-resistance transition is guaranteed.
  • the contact disk 22 with the intermediate disk element 20 is preferred connected via a screw 56 which runs along the central axis 16 of the wheel axis 12.
  • the contact disk 22 is then opposite the intermediate disk 20 via a pin 58 secured against rotation, which is connected in a suitable manner to the axis 12 itself.
  • the contact element or the carbon brush 32 also has a through hole 60 through which It is ensured that regardless of the abrasion of the carbon brush 32, this by the Contact disk 22 securing fastener 56 is not damaged.
  • the earth contact 10 consists of two pre-assembled units, one of which is the Contact disc 22, if necessary, with the intermediate disc 20 and the other cover 24 with helical compression spring 30, guide 36 and carbon brush 32. If necessary the ring 44 be part of the unit. In other words, they exist Units on the one hand from the rotating and on the other hand from the standing components of the Earth contact 10.
  • Carbon or copper graphite for example, come as materials for the carbon brush 32 and for the contact disk 32 the same materials or steel in question.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Elimination Of Static Electricity (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Motor Or Generator Frames (AREA)
  • Contacts (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP01106770A 2000-03-20 2001-03-17 Contact de mise à la terre Expired - Lifetime EP1136340B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10013491A DE10013491C2 (de) 2000-03-20 2000-03-20 Erdungskontakt
DE10013491 2000-03-20

Publications (3)

Publication Number Publication Date
EP1136340A2 true EP1136340A2 (fr) 2001-09-26
EP1136340A3 EP1136340A3 (fr) 2003-08-27
EP1136340B1 EP1136340B1 (fr) 2005-05-18

Family

ID=7635435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01106770A Expired - Lifetime EP1136340B1 (fr) 2000-03-20 2001-03-17 Contact de mise à la terre

Country Status (4)

Country Link
EP (1) EP1136340B1 (fr)
AT (1) ATE295796T1 (fr)
DE (2) DE10013491C2 (fr)
ES (1) ES2242670T3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102189997A (zh) * 2010-03-12 2011-09-21 永济新时速电机电器有限责任公司 防雷整车及轨道车
EP2423068A1 (fr) * 2010-08-26 2012-02-29 Schunk Bahn- und Industrietechnik GmbH Contact de mise à la terre
WO2013030615A1 (fr) * 2011-08-26 2013-03-07 Aktiebolaget Skf Ensemble doté de pièces rotatives à fluide conducteur pour retour par la terre
BE1020567A3 (fr) * 2012-12-24 2013-12-03 Hubert Gerken Atel Dispositif de retour de courant pour vehicules ferroviares.
EP2724913A1 (fr) * 2012-10-26 2014-04-30 Ateliers Hubert Gerken Dispositif de retour de courant pour véhicules ferroviaires
WO2018219658A1 (fr) * 2017-06-01 2018-12-06 Schunk Carbon Technology Gmbh Dispositif de dérivation servant à la dérivation de courants électriques
WO2018233749A1 (fr) * 2017-06-23 2018-12-27 Stemmann-Technik Gmbh Contact de mise à la terre
WO2019238358A1 (fr) * 2018-06-14 2019-12-19 Robert Bosch Gmbh Moteur électrique pourvu d'un arbre d'entraînement et d'un dispositif de mise à la terre pour la mise à la terre électrique de l'arbre d'entraînement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004025665B4 (de) * 2004-05-26 2006-07-13 Mtu Friedrichshafen Gmbh Stromabnehmer für eine Brennkraftmaschine
DE102011017533A1 (de) * 2011-04-26 2012-10-31 Robert Bosch Gmbh Bürstenanordnung in einer Kommutatoreneinrichtung in einer elektrischen Maschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH106070A (de) * 1923-08-13 1924-08-01 Kugellagerwerke J Schmid Roost Stromrückleitungseinrichtung an elektrischen Bahnmotorwagen mit Kugel- oder Rollenlagern.
DE1229577B (de) * 1962-05-08 1966-12-01 Schunk & Ebe Gmbh Erdungskontakt fuer Achslager von elektrischen Schienentriebfahrzeugen
DE1970569U (de) * 1964-12-12 1967-10-19 Max Frost Maschinen Und Appbau Erdungskontakt zur elektrischen ueberbrueckung der achslagerung von schienenfahrzeugen.
DE1286071B (de) * 1965-03-16 1969-01-02 Max Frost Maschinen U Appbau Erdungskontakt zur elektrischen UEberbrueckung der Achslagerung von Schienenfahrzeugen
FR1594731A (fr) * 1968-10-22 1970-06-08
DE4127336A1 (de) * 1991-08-19 1993-02-25 Schunk Metall & Kunststoff Haltevorrichtung fuer an schienenfahrzeugen als rueckstrom- und/oder erdungskontakt eingesetzte buersten und verfahren zur herstellung einer solchen haltevorrichtung
DE4223243A1 (de) * 1992-07-15 1994-01-20 Duewag Ag Geerdete Radlagerung eines Schienenfahrzeuges
DE9210799U1 (de) * 1992-08-13 1992-12-03 Schunk Metall Und Kunststoff Gmbh, 6301 Wettenberg Erdungskontakt

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102189997A (zh) * 2010-03-12 2011-09-21 永济新时速电机电器有限责任公司 防雷整车及轨道车
EP2423068A1 (fr) * 2010-08-26 2012-02-29 Schunk Bahn- und Industrietechnik GmbH Contact de mise à la terre
US8382494B2 (en) 2010-08-26 2013-02-26 Schunl Bahn-und Industrietechnik GmbH Grounding contact for an axle having a sliding contact element and a sensor
WO2013030615A1 (fr) * 2011-08-26 2013-03-07 Aktiebolaget Skf Ensemble doté de pièces rotatives à fluide conducteur pour retour par la terre
EP2724913A1 (fr) * 2012-10-26 2014-04-30 Ateliers Hubert Gerken Dispositif de retour de courant pour véhicules ferroviaires
AU2013248232B2 (en) * 2012-10-26 2016-12-15 Ateliers Hubert Gerken Electric current return device for railway vehicles
BE1020567A3 (fr) * 2012-12-24 2013-12-03 Hubert Gerken Atel Dispositif de retour de courant pour vehicules ferroviares.
KR20200019615A (ko) * 2017-06-01 2020-02-24 슝크 카르본 테히놀로기 게엠베하 전류 방출용 방출장치
CN110679044A (zh) * 2017-06-01 2020-01-10 申克碳素技术有限责任公司 用于释放电流的放电装置
WO2018219658A1 (fr) * 2017-06-01 2018-12-06 Schunk Carbon Technology Gmbh Dispositif de dérivation servant à la dérivation de courants électriques
EP3631911A1 (fr) * 2017-06-01 2020-04-08 Schunk Carbon Technology GmbH Dispositif de dérivation servant à la dérivation de courants électriques
JP2020522223A (ja) * 2017-06-01 2020-07-27 シュンク・カーボン・テクノロジー・ゲーエムベーハーＳｃｈｕｎｋ Ｃａｒｂｏｎ Ｔｅｃｈｎｏｌｏｇｙ ＧｍｂＨ 電流を放出するための放電装置
US11139625B2 (en) 2017-06-01 2021-10-05 Schunk Carbon Technology Gmbh Discharge device for discharging electric currents
WO2018233749A1 (fr) * 2017-06-23 2018-12-27 Stemmann-Technik Gmbh Contact de mise à la terre
CN110462945A (zh) * 2017-06-23 2019-11-15 斯特曼-技术有限公司 接地触点
WO2019238358A1 (fr) * 2018-06-14 2019-12-19 Robert Bosch Gmbh Moteur électrique pourvu d'un arbre d'entraînement et d'un dispositif de mise à la terre pour la mise à la terre électrique de l'arbre d'entraînement

Also Published As

Publication number Publication date
ES2242670T3 (es) 2005-11-16
EP1136340A3 (fr) 2003-08-27
ATE295796T1 (de) 2005-06-15
EP1136340B1 (fr) 2005-05-18
DE10013491C2 (de) 2002-10-24
DE50106235D1 (de) 2005-06-23
DE10013491A1 (de) 2001-10-18

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