EP1260420B1 - Rail contact for axle counter - Google Patents

Rail contact for axle counter Download PDF

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Publication number
EP1260420B1
EP1260420B1 EP02360136A EP02360136A EP1260420B1 EP 1260420 B1 EP1260420 B1 EP 1260420B1 EP 02360136 A EP02360136 A EP 02360136A EP 02360136 A EP02360136 A EP 02360136A EP 1260420 B1 EP1260420 B1 EP 1260420B1
Authority
EP
European Patent Office
Prior art keywords
rail contact
rail
lead
attachment flange
accordance
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.)
Expired - Lifetime
Application number
EP02360136A
Other languages
German (de)
French (fr)
Other versions
EP1260420A1 (en
Inventor
Ingrid Dressler
Kassen Oldewurtel
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.)
Alcatel Lucent SAS
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Alcatel Lucent SAS
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 Alcatel Lucent SAS filed Critical Alcatel Lucent SAS
Publication of EP1260420A1 publication Critical patent/EP1260420A1/en
Application granted granted Critical
Publication of EP1260420B1 publication Critical patent/EP1260420B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
    • B61L1/02—Electric devices associated with track, e.g. rail contacts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/163—Detection devices
    • B61L1/165—Electrical

Definitions

  • the invention relates to a rail contact for an axle counter.
  • axle counters are used for the track release message.
  • An axle counter includes a rail contact and an evaluation circuit.
  • the rail contact has e.g. two transmitters and two receivers. In a cycle passage of a train this is detected inductively.
  • the rail contact is placed locally near the rail. In future implementations, it is intended to attach the rail contact directly to the rail.
  • the rail contact is fastened to the rail neck by means of two bolts.
  • the object of the invention is to provide an axle counter which can detect a defect of the rail contact as surely as possible.
  • the mounting flanges When rail contact according to the invention at least one connecting wire of an electrical component of the rail contact is connected in any way with a mounting flange.
  • the mounting flanges When tearing off the rail contact by drooping parts of a passing train, the mounting flanges usually remain attached to the rail neck, the connecting rod connected to the mounting wire, however, breaks off.
  • the electrical component is, for example, the receiving coil of the rail contact, which is also referred to as a sensor.
  • the connection of the connecting wire of the receiving coil with the mounting flange can be done in several ways.
  • a part of the connecting wire is cast in the manufacture of the mounting flange in this.
  • a part of the connecting wire is inserted, for example in the form of a loop in the shape of the mounting flange and poured over the pouring material, so that the inserted part of the connecting wire is in the cast mounting flange.
  • an additional hole is provided through the mounting flange, through which the connection wire can be guided in the cast mounting flange.
  • Another variant provides to attach an eyelet on the mounting flange through which the connecting wire can be performed.
  • the connecting wire is guided around the bolt.
  • Fig. 1 shows a side view of a rail contact according to the invention with connection to a rail.
  • the rail contact 4 has two mounting flanges 5, 6 and by way of example two coils 7, 8, which serve as a receiver or transmitter.
  • Each mounting flange 5, 6 has a hole for the passage of a bolt by means of which the rail contact 4 is connected to the rail neck 2.
  • Each bolt has a thread on one end, to which a nut is screwed. The rail contact 4 is thus secured by means of two bolts and two nuts on the rail neck 2.
  • Each coil 7, 8 are supplied with two connecting wires for producing an electrical connection between the coil and the evaluation circuit of the axle counter.
  • Each connecting wire of a coil 7, 8 is now laid by the coil for evaluation in such a way that it is first guided by a bolt through the mounting flange 5, 6 and then to the evaluation circuit. This generates a predetermined breaking point for each connection wire.
  • the mounting flange 5, 6 is made for example by casting. Before pouring the mold becomes part of the lead wire inserted into the mold, so that forms by casting a mounting flange 5, 6 with cast-lead wire. The ends of the lead wire project out of the mounting flange 5, 6 and are connected to the corresponding coil 7, 8.
  • a shock on the rail contact 4 by a passing vehicle with drooping part results in that the bolts through the rail neck still hold the mounting flanges 5, 6 of the rail contact 4 correctly on the rail, but the remaining part of the rail contact 4 including the coil 7, 8 is separated from the mounting flanges 5, 6.
  • Fig. 2 shows a top view of the rail contact Fig. 1 with the indication of the breakage of a connecting wire.
  • a predetermined breaking point for the lead wire can be generated. It can thus be used to generate a predetermined breaking point any protuberance, connectivity, nose or the like on the mounting flange 5, 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Valve Device For Special Equipments (AREA)
  • Seats For Vehicles (AREA)
  • Escalators And Moving Walkways (AREA)

Abstract

The rail contact (4) for an axle counter is fixed to the neck of the rail via two bolting flanges (5,6). The counter electronics (7,8) are connected to the bolt flanges by wires which can be at last partially cast into the flanges. The wires can alternatively be connected to the flanges by lock plates or by the bolt heads, or through eyes.

Description

Die Erfindung betrifft einen Schienenkontakt für einen Achszähler.The invention relates to a rail contact for an axle counter.

In der Eisenbahnsignaltechnik werden zur Gleisfreimeldung Achszähler eingesetzt. Ein Achszähler beinhaltet einen Schienenkontakt und eine Auswerteschaltung. Der Schienenkontakt hat z.B. zwei Sender und zwei Empfänger. Bei einem Raddurchgang eines Zuges wird dieser induktiv detektiert.In railway signaling, axle counters are used for the track release message. An axle counter includes a rail contact and an evaluation circuit. The rail contact has e.g. two transmitters and two receivers. In a cycle passage of a train this is detected inductively.

In heutigen Implementierungen wird der Schienenkontakt örtlich in der Nähe der Schiene platziert. In zukünftigen Implementierungen ist vorgesehen, den Schienenkontakt direkt an der Schiene zu befestigen. Der Schienenkontakt wird dazu mittels zweier Bolzen am Schienenhals befestigt.In today's implementations, the rail contact is placed locally near the rail. In future implementations, it is intended to attach the rail contact directly to the rail. The rail contact is fastened to the rail neck by means of two bolts.

Zur sicheren Funktion des Gesamtsystems Achszähler muss ein Defekt des Schienenkontakts erkannt werden können. Wird der Schienenkontakt durch mechanische Einwirkung, z.B. von Schienenfahrzeugen fehlerhaft herunterhängenden Teilen, getroffen und derart beschädigt, dass ein sicheres Detektieren einer Achse nicht mehr möglich ist, so muss die Auswerteschaltung des Achszählers dies erkennen und einen sicheren Betriebszustand einnehmen.For the safe functioning of the total axle counter system, a defect in the rail contact must be detected. If the rail contact is hit and damaged in such a way that a safe detection of an axis is no longer possible due to mechanical action, eg of rail vehicles, the evaluation circuit of the axle counter must recognize this and assume a safe operating state.

Aufgabe der Erfindung ist es, einen Achszähler zu schaffen, der möglichst sicher einen Defekt des Schienenkontakts erkennen kann.The object of the invention is to provide an axle counter which can detect a defect of the rail contact as surely as possible.

Gelöst wird die Aufgabe durch einen Schienenkontakt gemäß Patentanspruch 1.The problem is solved by a rail contact according to claim 1.

Beim erfindungsgemäßen Schienenkontakt ist mindestens ein Anschlussdraht eines elektrischen Bauteils des Schienenkontakts auf irgend eine Art und Weise mit einem Befestigungsflansch verbunden. Beim Abreißen des Schienenkontaktes durch herunterhängende Teile eines vorbeifahrenden Zuges bleiben die Befestigungsflansche in der Regel weiterhin am Schienenhals befestigt, der mit dem Befestigungsflansch verbundene Anschlussdraht hingegen reißt ab. Dadurch ist die elektrische Verbindung zwischen Schienenkontakt und Auswerteschaltung unterbrochen und sichergestellt, dass die Auswerteschaltung vom nun fehlerhaft platzierten Schienenkontakt keine Signale mehr empfängt und folglich keine inkorrekte Auswertung vornimmt. Das elektrische Bauteil ist beispielsweise die Empfangsspule des Schienenkontakts, die auch als Sensor bezeichnet wird. Die Verbindung des Anschlussdrahtes der Empfangsspule mit dem Befestigungsflansch kann auf mehrere Art und Weisen erfolgen. Bei einer Variante wird ein Teil des Anschlussdrahtes bei der Herstellung des Befestigungsflansches in diesen eingegossen. Beim Gießen des Befestigungsflansches wird ein Teil des Anschlussdrahtes z.B. in Form einer Schlaufe in die Form des Befestigungsflansches eingelegt und mit dem Ausgussmaterial übergossen, so dass der eingelegte Teil des Anschlussdrahtes sich im gegossenen Befestigungsflansch befindet. Eine weitere Variante sieht vor, dass beim Gießen des Befestigungsflansches ein Zusatzloch durch den Befestigungsflansch vorgesehen wird, durch das im gegossenen Befestigungsflansch der Anschlussdraht geführt werden kann. Eine weitere Variante sieht vor, eine Öse am Befestigungsflansch anzubringen, durch die der Anschlussdraht geführt werden kann. Bei einer weiteren Variante wird der Anschlussdraht um den Bolzen geführt.When rail contact according to the invention at least one connecting wire of an electrical component of the rail contact is connected in any way with a mounting flange. When tearing off the rail contact by drooping parts of a passing train, the mounting flanges usually remain attached to the rail neck, the connecting rod connected to the mounting wire, however, breaks off. As a result, the electrical connection between the rail contact and evaluation circuit is interrupted and ensured that the evaluation circuit no longer receives signals from the now incorrectly placed rail contact and consequently does not carry out an incorrect evaluation. The electrical component is, for example, the receiving coil of the rail contact, which is also referred to as a sensor. The connection of the connecting wire of the receiving coil with the mounting flange can be done in several ways. In one variant, a part of the connecting wire is cast in the manufacture of the mounting flange in this. When casting the mounting flange, a part of the connecting wire is inserted, for example in the form of a loop in the shape of the mounting flange and poured over the pouring material, so that the inserted part of the connecting wire is in the cast mounting flange. A further variant provides that during the casting of the mounting flange, an additional hole is provided through the mounting flange, through which the connection wire can be guided in the cast mounting flange. Another variant provides to attach an eyelet on the mounting flange through which the connecting wire can be performed. In a further variant, the connecting wire is guided around the bolt.

Durch eine straffe Verbindung des Anschlussdrahtes der Empfangsspule mit dem Befestigungsflansch kann erreicht werden, dass auch in den Fällen, in denen der Schienenkontakt nicht abgerissen, aber die Empfangsspule derart beschädigt wurde, dass sie aus ihrer Ideallage entfernt und nicht mehr optimal empfangsbereit ist, ein Abreißen des Anschlussdrahtes erfolgt und somit die Auswerteschaltung des Achszählers einen sicheren Zustand einnimmt.By a tight connection of the connecting wire of the receiving coil with the mounting flange can be achieved that even in those cases where the rail contact is not torn off, but the receiving coil has been damaged so that it is removed from its ideal position and no longer optimally receptive, tearing off of the connecting wire and thus the evaluation of the axle counter assumes a safe state.

Im folgenden wird die Erfindung anhand eines Ausführungsbeispiels unter Zuhilfenahme zweier Figuren erläutert.In the following the invention will be explained with reference to an embodiment with the aid of two figures.

Fig. 1 zeigt eine Seitenansicht eines erfindungsgemäßen Schienenkontakts mit Verbindung zu einer Schiene. Fig. 1 shows a side view of a rail contact according to the invention with connection to a rail.

Es ist ein Ausschnitt einer Schiene mit Schienenkopf 1, Schienenhals 2 uns Schienenfuß dargestellt. Am Schienenhals 2 ist ein Schienenkontakt 4 eines Achszählers befestigt. Der Schienenkontakt 4 hat zwei Befestigungsflansche 5, 6 und beispielhaft zwei Spulen 7, 8, die als Empfänger oder Sender dienen. Jeder Befestigungsflansch 5, 6 weist ein Loch auf zur Durchführung eines Bolzens mittels dessen der Schienenkontakt 4 mit dem Schienenhals 2 verbunden wird. Jeder Bolzen hat an einem Ende ein Gewinde, auf das eine Mutter aufgeschraubt wird. Der Schienenkontakt 4 wird somit mittels zwei Bolzen und zwei Muttern am Schienenhals 2 befestigt.It is a section of a rail with rail head 1, rail neck 2 and rail foot shown. At the rail neck 2, a rail contact 4 of an axle counter is attached. The rail contact 4 has two mounting flanges 5, 6 and by way of example two coils 7, 8, which serve as a receiver or transmitter. Each mounting flange 5, 6 has a hole for the passage of a bolt by means of which the rail contact 4 is connected to the rail neck 2. Each bolt has a thread on one end, to which a nut is screwed. The rail contact 4 is thus secured by means of two bolts and two nuts on the rail neck 2.

Jeder Spule 7, 8 sind zwei Anschlussdrähte zur Herstellung einer elektrischen Verbindung zwischen Spule und Auswerteschaltung des Achszählers zugeführt.Each coil 7, 8 are supplied with two connecting wires for producing an electrical connection between the coil and the evaluation circuit of the axle counter.

Jeder Anschlussdraht einer Spule 7, 8 wird nun von der Spule zur Auswerteschaltung derart verlegt, dass er zunächst um einen Bolzen durch den Befestigungsflansch 5, 6 geführt wird und anschließend zur Auswerteschaltung. Damit wird eine Sollbruchstelle für jeden Anschlussdraht generiert. Der Befestigungsflansch 5, 6 wird beispielsweise durch Gießen gefertigt. Vor dem Ausgießen der Form wird ein Teil des Anschlussdrahtes in die Form eingelegt, so dass sich durchs Gießen ein Befestigungsflansch 5, 6 mit eingegossenem Anschlussdraht bildet. Die Enden des Anschlussdrahtes ragen aus dem Befestigungsflansch 5, 6 heraus und werden mit der entsprechenden Spule 7, 8 verbunden.Each connecting wire of a coil 7, 8 is now laid by the coil for evaluation in such a way that it is first guided by a bolt through the mounting flange 5, 6 and then to the evaluation circuit. This generates a predetermined breaking point for each connection wire. The mounting flange 5, 6 is made for example by casting. Before pouring the mold becomes part of the lead wire inserted into the mold, so that forms by casting a mounting flange 5, 6 with cast-lead wire. The ends of the lead wire project out of the mounting flange 5, 6 and are connected to the corresponding coil 7, 8.

Ein Schlag auf den Schienenkontakt 4 durch ein vorbeifahrendes Fahrzeug mit herabhängendem Teil führt dazu, dass zwar die Bolzen durch den Schienenhals die Befestigungsflansche 5, 6 des Schienenkontakts 4 noch korrekt an der Schiene halten, aber der übrige Teil des Schienenkontakts 4 einschließlich der Spulen 7, 8 von den Befestigungsflanschen 5, 6 abgetrennt wird.A shock on the rail contact 4 by a passing vehicle with drooping part results in that the bolts through the rail neck still hold the mounting flanges 5, 6 of the rail contact 4 correctly on the rail, but the remaining part of the rail contact 4 including the coil 7, 8 is separated from the mounting flanges 5, 6.

Dadurch, dass die Anschlussdrähte der Spulen 7, 8 im Schienenkontakt 4 aber um die noch festsitzenden Bolzen geführt sind und mit den Befestigungsflanschen 5, 6 fest verbunden sind, reißen diese Anschlussdrähte beim Abtrennen der Spulen 7, 8 ab. Auf diese Art und Weise wird die elektrische Verbindung zwischen Auswerteschaltung des Achszählers und Spulen 7, 8 unterbrochen. Die Auswerteschaltung detektiert keinerlei Empfangsspannung mehr und nimmt daraufhin den sicheren Zustand ein.Due to the fact that the connecting wires of the coils 7, 8 are guided in the rail contact 4 but around the still tight bolts and are firmly connected to the mounting flanges 5, 6, these connecting wires tear off during the separation of the coils 7, 8. In this way, the electrical connection between the evaluation circuit of the axle counter and coils 7, 8 is interrupted. The evaluation circuit no longer detects any receiving voltage and then assumes the safe state.

Fig. 2 zeigt eine Draufsicht des Schienenkontaktes aus Fig. 1 mit der Indikation der Bruchstelle eines Anschlussdrahtes. Fig. 2 shows a top view of the rail contact Fig. 1 with the indication of the breakage of a connecting wire.

Die Generierung der Sollbruchstelle für einen Anschlussdraht wird prinzipiell auf folgende Art und Weise erreicht:

  • Erforderlich ist eine Verbindung eines Anschlussdrahtes mit einem durch mechanische Einwirkung abtrennbaren Teil und einem nicht abtrennbaren Teil des Schienenkontakts 4. Abgetrennt werden die Spulen 7, 8. Nicht abgetrennt werden die Befestigungsflansche 5, 6 und die Bolzen. Durch Verbinden eines Anschlussdrahtes mit z.B. Spule 7 und Befestigungsflansch 5 wird eine Sollbruchstelle generiert.
The generation of the predetermined breaking point for a connecting wire is achieved in principle in the following manner:
  • Required is a connection of a lead wire with a detachable by mechanical action part and a non-detachable part of the rail contact 4. The coils 7, 8 are disconnected. The fastening flanges 5, 6 and the bolts are not separated. By connecting a connecting wire with eg coil 7 and mounting flange 5, a predetermined breaking point is generated.

Alternativ kann durch Anbringen einer Öse an einem Befestigungsflansch 5, 6 und durch Verlegen des Anschlussdrahtes von einer Spule durch die Öse zur Auswerteschaltung eine Sollbruchstelle für den Anschlussdraht generiert werden. Es kann somit jede Ausstülpung, Verbindungsmöglichkeit, Nase oder dergleichen am Befestigungsflansch 5, 6 zur Generierung einer Sollbruchstelle verwendet werden.Alternatively, by attaching an eyelet to a mounting flange 5, 6 and by laying the lead wire from a coil through the eyelet for evaluation a predetermined breaking point for the lead wire can be generated. It can thus be used to generate a predetermined breaking point any protuberance, connectivity, nose or the like on the mounting flange 5, 6.

Claims (9)

  1. Rail contact (4) for an axle counter for attachment to a rail neck (2) by means of two attachment flanges (5, 6), in each case with a hole for a bolt, and hence by means of two said bolts, characterized in that at least one lead of at least one electrical component (7, 8) of the rail contact (4) is connected to an attachment flange (5, 6).
  2. Rail contact (4) in accordance with patent claim 1, characterized in that the at least one lead is partially embedded in the attachment flange (5, 6).
  3. Rail contact (4) in accordance with patent claim 1, characterized in that the at least one lead is guided through an additional hole into the attachment flange (5, 6).
  4. Rail contact (4) in accordance with patent claim 1, characterized in that the at least one lead is guided around a protuberance to an attachment flange (5, 6).
  5. Rail contact (4) in accordance with patent claim 1, characterized in that the protuberance is formed by a bolt.
  6. Rail contact (4) in accordance with patent claim 1, characterized in that the at least one lead is guided through an eye that is attached to the attachment flange (5, 6).
  7. Rail contact (4) in accordance with patent claim 1, characterized in that at least one further lead of at least one electrical component (7, 8) of the rail contact (4) is connected to a further attachment flange (5, 6).
  8. Rail contact (4) in accordance with patent claim 1, characterized in that an electrical component (7, 8) is implemented as a receiver coil.
  9. Process for producing an attachment flange (5, 6) for a rail contact (4) in accordance with claim 2, in which the attachment flange (5, 6) is cast in a mould, characterized in that an electrical lead is laid in the mould before casting, such that the ends of the lead are located outside the mould, and the attachment flange is then cast such that the lead is partly within the cast attachment flange (5, 6).
EP02360136A 2001-05-23 2002-04-29 Rail contact for axle counter Expired - Lifetime EP1260420B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125281A DE10125281A1 (en) 2001-05-23 2001-05-23 Rail contact for an axle counter
DE10125281 2001-05-23

Publications (2)

Publication Number Publication Date
EP1260420A1 EP1260420A1 (en) 2002-11-27
EP1260420B1 true EP1260420B1 (en) 2009-03-11

Family

ID=7685962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02360136A Expired - Lifetime EP1260420B1 (en) 2001-05-23 2002-04-29 Rail contact for axle counter

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EP (1) EP1260420B1 (en)
AT (1) ATE425062T1 (en)
DE (2) DE10125281A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021106466U1 (en) 2021-11-26 2023-03-27 Thales Management & Services Deutschland GmbH Rail contact arrangement with break detection device
DE102021131123A1 (en) 2021-11-26 2023-06-01 Thales Management & Services Deutschland Gmbh Rail contact arrangement with break detection device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2962915B1 (en) * 2014-07-03 2022-06-01 Thales Management & Services Deutschland GmbH Supervision device and sensor device comprising a supervision device
DE102015004068A1 (en) * 2015-03-30 2016-10-06 PINTSCH TIEFENBACH GmbH Method and system for operating a track system
DE102015209721B3 (en) * 2015-05-27 2016-10-27 Thales Deutschland Gmbh Fastening device for fastening a sensor element to a rail and Achszählvorrichtung
RS63690B1 (en) * 2019-12-12 2022-11-30 Thales Man & Services Deutschland Gmbh Rail contact element and drop off detection unit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4018999C2 (en) * 1990-06-13 1995-08-17 Siemens Ag Wheel sensor for rail vehicles
US5395078A (en) * 1991-12-09 1995-03-07 Servo Corporation Of America Low speed wheel presence transducer for railroads with self calibration

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021106466U1 (en) 2021-11-26 2023-03-27 Thales Management & Services Deutschland GmbH Rail contact arrangement with break detection device
DE102021131123A1 (en) 2021-11-26 2023-06-01 Thales Management & Services Deutschland Gmbh Rail contact arrangement with break detection device

Also Published As

Publication number Publication date
ATE425062T1 (en) 2009-03-15
DE50213339D1 (en) 2009-04-23
DE10125281A1 (en) 2002-11-28
EP1260420A1 (en) 2002-11-27

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