EP0601993A1 - Railway switch drive - Google Patents

Railway switch drive Download PDF

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Publication number
EP0601993A1
EP0601993A1 EP93890214A EP93890214A EP0601993A1 EP 0601993 A1 EP0601993 A1 EP 0601993A1 EP 93890214 A EP93890214 A EP 93890214A EP 93890214 A EP93890214 A EP 93890214A EP 0601993 A1 EP0601993 A1 EP 0601993A1
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EP
European Patent Office
Prior art keywords
housing element
drive unit
measuring sensor
force measuring
hydraulic cylinder
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
EP93890214A
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German (de)
French (fr)
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EP0601993B1 (en
Inventor
Manfred Baumruck
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Alcatel Lucent Austria AG
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Alcatel Austria AG
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Publication date
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Publication of EP0601993A1 publication Critical patent/EP0601993A1/en
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Publication of EP0601993B1 publication Critical patent/EP0601993B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/04—Fluid-pressure devices for operating points or scotch-blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Railway Tracks (AREA)
  • Actuator (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Seasonings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Alcoholic Beverages (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Inorganic Insulating Materials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Magnetic Heads (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Hydraulic Turbines (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Numerical Control (AREA)
  • Paper (AREA)
  • Liquid Crystal (AREA)
  • Valve Device For Special Equipments (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Switches With Compound Operations (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Push-Button Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Electronic Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

In a railway switch drive, a force sensor (14) is arranged between the drive unit (1) and one of its connecting points (13) to the housing element (7, 4) and connected to a monitoring unit (16), for example in an interlocking cabin, via a motionless signal line (15). In this way, increases in the required actuating force, due for example to soiling, can be easily detected and appropriate maintenance measures triggered. <IMAGE>

Description

Die Erfindung betrifft einen Weichenantrieb, mit einem Antriebsaggregat, welches einerseits mit einem feststehenden Gehäuseelement und andererseits mit den zu verstellenden Weichenzungen in Verbindung steht.The invention relates to a point machine with a drive unit which is connected on the one hand to a fixed housing element and on the other hand to the switch tongues to be adjusted.

Derartige Weichenantriebe sind in vielfältigsten Ausführungen bekannt, wobei das Antriebsaggregat zumeist elektrisch oder elektro-hydraulisch ausgebildet ist. Im ersten Falle sind zur Bereitstellung der relativ hohen Umschaltkräfte zumeist Untersetzungsgetriebe und im zweiten Falle hydraulische Pumpeinheiten und entsprechende Arbeitszylinder zwischen dem antreibenden Elektromotor und dem schlußendlich zu verstellenden Element zwischengeschaltet. Um im rauhen Bahnbetrieb sicherstellen zu können, daß der vom Elektromotor zu überwindende Reibungswiderstand in der gesamten Antriebskette nicht zu Folge von Korrosion, eingedrungenen Staub und Wasser, Witterungseinflüssen und der gleichen mehr all zu hoch wird und zu einem Blockieren des Weichenantriebes führen kann, ist in bestimmten Intervallen ein Reinigen und/oder Abschmieren des Weichenantriebes durchzuführen, was naturgemäß relativ zeitaufwendig ist und neben dem Erfordernis speziellen Servicepersonals auch zumeist eine Störung des Bahnbetriebs notwendig macht.Switch machines of this type are known in a wide variety of designs, the drive unit usually being designed electrically or electro-hydraulically. In the first case, mostly reduction gears are provided to provide the relatively high switching forces, and in the second case hydraulic pump units and corresponding working cylinders are interposed between the driving electric motor and the element to be finally adjusted. In order to be able to ensure in rough railway operation that the frictional resistance to be overcome by the electric motor in the entire drive chain is not too high due to corrosion, penetrated dust and water, weather influences and the like and can lead to a blockage of the turnout drive to perform cleaning and / or lubrication of the point machine at certain intervals, which is naturally relatively time-consuming and, in addition to the requirement of special service personnel, usually also necessitates a disruption of the railway operation.

Aufgabe der vorliegenden Erfindung ist es, einen Weichenantrieb der genannten Art so zu verbesseren, daß die genannte Wartung mit geringstmöglichem Aufwand an Personal und mit möglichst geringen Störungen des Bahnbetriebs bei gleichzeitiger Sicherstellung einer einwandfreien Funktion des Weichenantriebes möglich wird.The object of the present invention is to improve a point machine of the type mentioned in such a way that said maintenance is possible with the least possible expenditure on personnel and with the least possible disruption to rail operations while at the same time ensuring that the point machine functions properly.

Dies wird gemäß der vorliegenden Erfindung dadurch erreicht, daß zwischen dem Antriebsaggregat und einer seiner Verbindungsstellen zum Gehäuseelement ein Kraftmeßsensor angeordnet und über eine unbewegte Signalleitung mit einer Überwachungseinheit verbunden ist. Über diesen Kraftmeßsensor, dessen Überwachungseinheit zweckmäßigerweise etwa in einem Stellwerk oder aber auch unmittelbar in der Umgebung des Weichenantriebes angeordnet ist, kann sehr einfach entschieden werden, ob die durch die beschriebenen Reibungskräfte im Antriebsstrang der Weiche auf die Verbindungsstelle des Antriebsaggregats zum Gehäuseelement ausgeübten Reaktionskräfte ein tolerierbares Maß überschreiten. Wenn dies der Fall ist, kann daraus auf erhöhte Verschmutzung bzw. auf Schmierbedarf des Weichenantriebes geschlossen und das Erforderliche gezielt veranlaßt werden. Das Servicepersonal braucht also nicht mehr in bestimmten festgelegten Zeitintervallen einen an sich noch tadellos funktionierenden Weichenantrieb reinigen und/oder schmieren, sondern kann gezielt dort eingesetzt werden wo es tatsächlich notwendig ist.This is achieved according to the present invention in that a force measuring sensor is arranged between the drive unit and one of its connection points to the housing element and is connected to a monitoring unit via an unmoved signal line. This force measuring sensor, the monitoring unit of which is expediently arranged, for example, in an interlocking or also directly in the vicinity of the point machine, can be used to make a very simple decision as to whether the described by the Frictional forces in the drive train of the switch reacting forces exerted on the connection point of the drive unit to the housing element exceed a tolerable level. If this is the case, it can be concluded that there is increased contamination or the need for lubrication of the point machine and that the necessary measures can be taken in a targeted manner. The service personnel therefore no longer need to clean and / or lubricate a point machine that still functions perfectly in certain defined time intervals, but can be used specifically where it is actually necessary.

Prinzipiell sind Kraftmessungen ähnlicher Art schon in verschiedenen Zusammenhängen bekannt geworden, wobei es jedoch in der Regel sehr schwer ist, Kraftmessungen an beweglichen Teilen durchzuführen. Erschwert werden derartige Messungen im Bahnbetrieb zusätzlich noch durch extreme Umweltbedingungen, wie z. B. sehr hohe oder sehr niedrige Temparaturen. Bei der vorliegenden Erfindung wird diesem zusätzlichen Erschwernis dadurch Rechnung getragen, daß der Kraftmeßsensor auf beschriebene Art angeordnet und über eine unbewegte Signalleitung mit der Überwachungseinheit verbunden ist, sodaß mechanische Belastungen der Signalleitung praktisch ausgeschaltet sind.In principle, force measurements of a similar type have already become known in various contexts, although it is generally very difficult to carry out force measurements on moving parts. Such measurements are made more difficult in railway operations by extreme environmental conditions, such as. B. very high or very low temperatures. In the present invention, this additional complication is taken into account in that the force measuring sensor is arranged in the manner described and is connected to the monitoring unit via an unmoved signal line, so that mechanical loads on the signal line are practically eliminated.

Bei einer weiteren Ausgestaltung der Erfindung, gemäß welcher das Antriebsaggregat einen Hydraulikzylinder aufweist, der mit zumindest einer Schraube mit dem Gehäuseelement verbunden ist, ist vorgesehen, daß der vorzugsweise ringförmig ausgebildete Kraftmeßsensor von der mit bestimmter Vorspannkraft angezogenen Schraube zwischen Hydraulikzylinder und Gehäuseelement gehalten ist. Dies ergibt eine sehr einfache Anordung des Kraftmeßsensors ohne besonderen zusätzlichen konstruktiven Aufwand, wobei sowohl eine Anordung mit auf Druck als auch auf Zug belastetem Kraftmeßsensor möglich ist.In a further embodiment of the invention, according to which the drive unit has a hydraulic cylinder which is connected to the housing element with at least one screw, it is provided that the preferably ring-shaped force measuring sensor is held between the hydraulic cylinder and the housing element by the screw tightened with a certain preload force. This results in a very simple arrangement of the force measuring sensor without any special additional design effort, wherein an arrangement with a force measuring sensor that is loaded under pressure as well as under tension is possible.

Die Erfindung wird im Folgenden noch an Hand des in der Zeichnung teilweise schematisch dargestellten Ausführungsbeispiels erläutert.The invention is explained below with reference to the exemplary embodiment which is shown schematically in the drawing.

Der dargestellte Weichenantrieb weist einen Hydraulikzylinder 1 auf, der Teil eines hier nicht weiter dargestellten elektro-hydraulischen Antriebsaggregats ist und über Hydraulikanschlüsse 2 beispielsweise mit einer Hydraulikpumpe in Verbindung steht. Die Kolbenstange 3 des Hydraulikzylinders 1 ragt beidseitig über Bohrungen 6 aus dem Gehäuseelement 7 und ist in Spannkappen 4, 5 fixiert. Der Zylinder 8 ist entsprechend einer Druckbeaufschlagung über die Hydraulikanschlüsse 2 - die über nicht dargestellte Leitungen in der Kolbenstange 3 mit den Innenräumen beidseitig des Kolbens verbunden sind - entlang der Achse 9 hin und her bewegbar und nimmt dabei über einen Hebel 10 auf hier nicht weiter interessierende Weise eine Schubstange 11 mit, die mit den nicht dargestellten Weichenzungen verbunden ist. Der Vollständigkeit halber ist hier auch noch auf Sperrhacken 12 zu verweisen, die die Endstellungen der Weichenzungen auf hier ebenfalls nicht ersichtliche Weise fixieren.The switch machine shown has a hydraulic cylinder 1, that is part of an electro-hydraulic drive unit (not shown further here) and is connected, for example, to a hydraulic pump via hydraulic connections 2. The piston rod 3 of the hydraulic cylinder 1 protrudes on both sides through bores 6 from the housing element 7 and is fixed in clamping caps 4, 5. The cylinder 8 can be moved back and forth along the axis 9 in accordance with a pressurization via the hydraulic connections 2 - which are connected to the interiors on both sides of the piston via lines (not shown) in the piston rod 3 and thereby takes on a lever 10 of no further interest here With a push rod 11, which is connected to the switch tongues, not shown. For the sake of completeness, reference should also be made here to locking hooks 12 which also fix the end positions of the switch tongues in a manner which is likewise not evident here.

An der in der Darstellung linken Spannkappe 4 ist zwischen dem als Antriebsaggregat wirkenden Hydraulikzylinder 1 bzw. seiner Kolbenstange 3 und der Verbindungsstelle 13 zum Gehäuselement 7 bzw. der Spannkappe 4 ein Kraftmeßsensor 14 angeordnet und über eine unbewegte Singalleitung 15 mit einer Überwachungseinheit 16 verbunden, welche letztere auf hier nicht ersichtliche Weise im Stellwerk angeordnet sein kann. Der hier ringförmig ausgebildete Kraftmeßsensor 14 wird dabei von einer mit bestimmter Vorspannkraft angezogenen Schraube 16 kraftflußmäßig zwischen dem Hydraulikzylinder 1 bzw. dessen Kolbenstange 3 und dem Gehäuseelement 7 bzw. der Spannkappe 4 gehalten, sodaß die bei einer hydraulisch eingeleiteten Bewegung des Zylinders 8 auf die Verbindungsstelle 13 ausgeübten Reaktionskräfte an der Überwachungseinheit 16 unmittelbar angezeigt oder beispielsweise auf Überschreitung eines voreingestellten Schwellwertes überprüft werden können.On the clamping cap 4 on the left in the illustration, a force measuring sensor 14 is arranged between the hydraulic cylinder 1 acting as the drive unit or its piston rod 3 and the connection point 13 to the housing element 7 or the clamping cap 4 and is connected via an immovable signal line 15 to a monitoring unit 16 which the latter can be arranged in the interlocking in a manner not visible here. The ring-shaped force measuring sensor 14 is held by a screw 16 tightened with a certain preload in terms of force between the hydraulic cylinder 1 or its piston rod 3 and the housing element 7 or the clamping cap 4, so that the hydraulically initiated movement of the cylinder 8 to the connection point 13 exerted reaction forces can be displayed directly on the monitoring unit 16 or can be checked, for example, if a preset threshold value is exceeded.

Abgesehen von der hier dargestellten Ausführung könnte ein entsprechend ausgebildeter Kraftmeßsensor natürlich ohne weiteres auch an der Innenseite der Spannkappe 4 zwischen dieser und dem Ende der Kolbenstange 3 eingeschaltet und mittels Vorspannung auf Zug belastet sein. Auch ist bei entsprechend ausgebildeter Verbindung zwischen Antriebsaggregat und Gehäuselement natürlich eine andere Art, Ausbildung und Anordnung des Kraftmeßsensors möglich.Apart from the embodiment shown here, a correspondingly designed force measuring sensor could of course also be switched on on the inside of the clamping cap 4 between the latter and the end of the piston rod 3 and be preloaded by tension. A different type, design and arrangement of the force measuring sensor is of course also possible if the connection between the drive unit and the housing element is designed accordingly.

Claims (2)

Weichantrieb, mit einem Antriebsaggregat, welches einerseits mit einem bestehenden Gehäuseelement und andererseits mit den zu verstellenden Weichenzungen in Verbindung steht, dadurch gekennzeichnet, daß zwischen dem Antriebsaggregat (1) und einer seiner Verbindungsstellen (13) zum Gehäuseelement (7,4) ein Kraftmeßsensor (14) angeordnet und über eine unbewegte Signalleitung (15) mit einer Überwachungseinheit (16) verbunden ist.Soft drive, with a drive unit which is connected on the one hand to an existing housing element and on the other hand to the switch tongues to be adjusted, characterized in that between the drive unit (1) and one of its connection points (13) to the housing element (7, 4) a force measuring sensor ( 14) and is connected to a monitoring unit (16) via an immobile signal line (15). Weichenantrieb nach Anspruch (1), wobei das Antiebsaggregat einen Hydraulikzylinder aufweist, der mit zumindest einer Schraube mit dem Gehäuseelement verbunden ist, dadurch gekennzeichnet, daß der vorzugsweise ringförmig ausgebildete Kraftmeßsensor (14) von der mit bestimmter Vorspannkraft angezogenen Schraube (17) zwischen Hydraulikzylinder (1) und Gehäuseelement (7,4) gehalten ist.Switch machine according to claim (1), wherein the drive unit has a hydraulic cylinder which is connected to the housing element with at least one screw, characterized in that the preferably ring-shaped force measuring sensor (14) is between the hydraulic cylinder (17) and the screw (17) tightened with a certain preload force. 1) and housing element (7.4) is held.
EP93890214A 1992-11-04 1993-10-27 Railway switch drive Expired - Lifetime EP0601993B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2179/92 1992-11-04
AT0217992A AT399696B (en) 1992-11-04 1992-11-04 SWITCH DRIVE

Publications (2)

Publication Number Publication Date
EP0601993A1 true EP0601993A1 (en) 1994-06-15
EP0601993B1 EP0601993B1 (en) 1995-09-27

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ID=3529408

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EP93890214A Expired - Lifetime EP0601993B1 (en) 1992-11-04 1993-10-27 Railway switch drive

Country Status (12)

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EP (1) EP0601993B1 (en)
AT (2) AT399696B (en)
CZ (1) CZ286313B6 (en)
DE (1) DE59300680D1 (en)
DK (1) DK0601993T3 (en)
ES (1) ES2081203T3 (en)
FI (1) FI934859A (en)
HU (1) HU210602B (en)
NO (1) NO301288B1 (en)
PL (1) PL172251B1 (en)
RU (1) RU2128123C1 (en)
SK (1) SK280866B6 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2745543A1 (en) * 1996-02-29 1997-09-05 Cogifer Remote preventative monitoring system for rail network
FR2747986A1 (en) * 1996-04-29 1997-10-31 Sncf Torque sensing device for railway shunting operating motor
GB2313611A (en) * 1996-05-25 1997-12-03 British Railways Board Monitoring railway point electric operating mechanisms
NL1012336C2 (en) * 1999-06-15 2000-12-18 Strukton Railinfra Elektrotech Monitoring network for points switches in railway track system, uses computers and current sensors to compare actual motor current characteristics with stored data
WO2014024117A3 (en) * 2012-08-07 2014-04-10 Wegh Group S.P.A. A friction device for interrupting the approaching motion between blade and stock rail in case of an obstacle that impedes the normal manoeuvre
CN107558314A (en) * 2017-09-12 2018-01-09 中国十九冶集团有限公司 Utilize the method for track clamper transhipment track
DE102018219137A1 (en) * 2018-11-09 2020-05-14 Siemens Mobility GmbH Switch drive arrangement and method for switch diagnosis

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0480303A2 (en) * 1990-10-10 1992-04-15 SASIB S.p.A. Operating device for railway switches, particularly for high-speed lines
EP0542127A1 (en) * 1991-11-09 1993-05-19 BWG Butzbacher Weichenbau GmbH Method for setting a first rail towards a second rail

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546296A (en) * 1983-05-12 1985-10-08 Westinghouse Brake & Signal Electric actuators
DE3622497A1 (en) * 1986-07-02 1988-01-14 Mannesmann Ag Measuring device for the penetration mandrel test
AT399401B (en) * 1988-05-27 1995-05-26 Voest Alpine Eisenbahnsysteme DEVICE FOR DETECTING THE CONDITION OF RAILS OR CROSSINGS
US5036594A (en) * 1990-02-09 1991-08-06 Ensco, Inc. Method and apparatus for gauging the corsslevel and warp of railroad tracks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0480303A2 (en) * 1990-10-10 1992-04-15 SASIB S.p.A. Operating device for railway switches, particularly for high-speed lines
EP0542127A1 (en) * 1991-11-09 1993-05-19 BWG Butzbacher Weichenbau GmbH Method for setting a first rail towards a second rail

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2745543A1 (en) * 1996-02-29 1997-09-05 Cogifer Remote preventative monitoring system for rail network
FR2747986A1 (en) * 1996-04-29 1997-10-31 Sncf Torque sensing device for railway shunting operating motor
GB2313611A (en) * 1996-05-25 1997-12-03 British Railways Board Monitoring railway point electric operating mechanisms
GB2313611B (en) * 1996-05-25 2000-07-05 British Railways Board Apparatus and method for monitoring the operation of electrically driven machinery
NL1012336C2 (en) * 1999-06-15 2000-12-18 Strukton Railinfra Elektrotech Monitoring network for points switches in railway track system, uses computers and current sensors to compare actual motor current characteristics with stored data
WO2014024117A3 (en) * 2012-08-07 2014-04-10 Wegh Group S.P.A. A friction device for interrupting the approaching motion between blade and stock rail in case of an obstacle that impedes the normal manoeuvre
CN107558314A (en) * 2017-09-12 2018-01-09 中国十九冶集团有限公司 Utilize the method for track clamper transhipment track
DE102018219137A1 (en) * 2018-11-09 2020-05-14 Siemens Mobility GmbH Switch drive arrangement and method for switch diagnosis

Also Published As

Publication number Publication date
PL172251B1 (en) 1997-08-29
PL300870A1 (en) 1994-05-16
NO933913D0 (en) 1993-10-29
SK121493A3 (en) 1994-06-08
CZ286313B6 (en) 2000-03-15
HUT66184A (en) 1994-10-28
NO933913L (en) 1994-05-05
DE59300680D1 (en) 1995-11-02
EP0601993B1 (en) 1995-09-27
RU2128123C1 (en) 1999-03-27
SK280866B6 (en) 2000-08-14
CZ233193A3 (en) 1994-05-18
NO301288B1 (en) 1997-10-06
FI934859A (en) 1994-05-05
ATA217992A (en) 1994-11-15
ATE128425T1 (en) 1995-10-15
AT399696B (en) 1995-06-26
ES2081203T3 (en) 1996-02-16
HU210602B (en) 1995-05-29
DK0601993T3 (en) 1996-01-22
FI934859A0 (en) 1993-11-03

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