EP1412241B1 - Device for resetting points - Google Patents

Device for resetting points Download PDF

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Publication number
EP1412241B1
EP1412241B1 EP02753888A EP02753888A EP1412241B1 EP 1412241 B1 EP1412241 B1 EP 1412241B1 EP 02753888 A EP02753888 A EP 02753888A EP 02753888 A EP02753888 A EP 02753888A EP 1412241 B1 EP1412241 B1 EP 1412241B1
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EP
European Patent Office
Prior art keywords
cylinder
piston
cross
section
hydraulic
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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
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EP02753888A
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German (de)
French (fr)
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EP1412241A1 (en
Inventor
Herbert Klein
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Voestalpine Turnout Technology Zeltweg GmbH
Voestalpine Railway Systems GmbH
Original Assignee
Voestalpine VAE GmbH
Voestalpine Weichensysteme GmbH
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Priority to SI200230628T priority Critical patent/SI1412241T1/en
Publication of EP1412241A1 publication Critical patent/EP1412241A1/en
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Publication of EP1412241B1 publication Critical patent/EP1412241B1/en
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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

Definitions

  • the invention relates to a device for changing over points, in which a plurality of mutually coupled hydraulic adjusting devices is arranged offset in the longitudinal direction rail and the cylinder piston units of the hydraulic actuating devices are connected to the same direction drive with each other.
  • a device is for example from the WO 96/00160 known.
  • the hydraulic cylinder-piston units was in the WO 96/00160 proposed to arrange thrust valves within the piston stroke of the hydraulic cylinder-piston unit, which were turned on in the two working spaces of the cylinder-piston unit connecting line, for example in the form of a bore of the piston. Depending on the piston position, this connection is interrupted or there is flow, whereby the target position can be reached exactly. As a result, a hydraulic synchronization of the along the rail longitudinal direction staggered and coupled to each other hydraulic cylinder-piston units is given.
  • a switching device consists of a plurality of hydraulic cylinders with different cross sections, so that the installation of such a switching device due to the large number of different dimensions designed consuming.
  • the production and assembly of the hydraulic cylinder is associated with a higher cost, since all connected to the hydraulic cylinder-piston unit parts or all arranged in the cylinder parts such as end-position safety devices, safety locks and / or sensors to the different dimensions must be adjusted.
  • the installation dimensions of the differently dimensioned hydraulic cylinders also change accordingly, which makes installation even more difficult.
  • the present invention now aims to provide a means for changing over switches, in which an exact adjustment of the respectively required travel paths and actuating forces succeeds, at the same time the installation dimensions of the hydraulic cylinder remain unchanged and also required for the Umstell device parts Variety of hydraulic units can be kept as low as possible.
  • the invention consists essentially in that the working spaces of the hydraulic cylinder-piston units each having two areas with a defined cylinder cross-section, wherein the respective end position securing devices, safety locking devices, and / or sensors containing areas of the rail longitudinally staggered cylinder piston units have the same cross-section with each other and the other areas of the rail longitudinally offset arranged cylinder piston units have mutually different cross section.
  • the training is developed such that the end position securing devices, safety locking devices, and / or sensors containing area has a smaller cross-section than the other area.
  • the end-position safety devices or safety closing devices arranged in the area in question can be arranged in an advantageous manner, wherein a particularly small-sized device can be realized.
  • the training is developed such that the working spaces of the cylinder-piston unit are interconnected by a bore of the piston and that Aufcet-valves are arranged in the bore.
  • the working spaces of a cylinder-piston unit in this case are connected by a conduit in the form of a bore with each other, wherein push-on valves are installed. These valves are operated with a plunger fixedly connected to the cylinder, so that the line connecting the two working chambers of the cylinder is opened and a further adjustment of the piston is prevented.
  • the training is advantageously developed such that the cylinder is connected with the interposition of a spacer with a coupling flange, wherein the length of the spacer corresponds to the caused by the cross-sectional enlargement of the cylinder Hubverkürzung.
  • the spacers thus bridge the through the shortened stroke caused reduced total overall length of the cylinder, so that the installation situation and the attack situation for the linkage remain the same and the installation dimensions of the device along the entire tongue rail are the same.
  • adjustments to the parts connected to the hydraulic cylinders can be reduced to a minimum, so that the cost of installation can be significantly reduced.
  • FIG. 2 shows a detail of the connection of a conventional cylinder-piston unit with a mechanical slide rod
  • FIG. 3 shows a schematic partial view of the illustration according to FIG. 2
  • FIG. 4 shows an enlarged view of a conventional hydraulic cylinder piston
  • Figure 5 is a plan view of the illustration of Fig. 4
  • Figure 6 is a representation of a reaching according to the invention used hydraulic cylinder piston unit in section.
  • Fig. 1 rails 1 are schematically indicated, which are connected to sleepers 2.
  • tongue rails 3 are provided in addition to the control rails, which can be brought via an actuator, which is schematically indicated by 4, in their respective position.
  • the actuator 4 acts on slide rods 5 on the tongue rails 3.
  • the slide rods 5 are coupled via a central tap 6 with a hydraulic cylinder-piston unit 7.
  • cylinder piston assemblies 7 in the rail track visible, which are each coupled with slide rods and closure devices, which in turn are indicated schematically with 5.
  • the type of mechanical connection of the hydraulic cylinder-piston units 7 with the slide rods 5 is clearly visible.
  • the cylinder-piston units 7 have a sliding block.
  • FIG. 3 the manner of determining the hydraulic cylinder-piston units 7 at the threshold 2 is illustrated. The determination is made via a stop plate 10, which is fixed to the threshold 2. The hydraulic cylinder-piston units 7 require relatively little space, so that the plug of the substructure is not affected.
  • FIG. 4 and 5 a plunger 11 having hydraulic cylinder-piston unit 7 can be seen.
  • the plungers 11 dive via seals 12 in the respective working chambers 13 of the hydraulic cylinder-piston units, and in a displacement of the plunger 11 in one of the directions of the double arrow 14 each medium from the corresponding working space 13 is pressed out.
  • the hydraulic connections lead to the outer openings 15 in the respective working space 13.
  • the sliding block is again denoted by 8, via which the mechanical coupling takes place.
  • a rubber boot 16 is provided to protect the device further.
  • the individual hydraulic cylinder-piston units are coupled together and offset in the rail longitudinal direction, wherein the first hydraulic cylinder-piston unit acts as a pumping element for the subsequent cylinder-piston units.
  • the working spaces 13 of the first hydraulic cylinder-piston unit 7, which acts as a pumping element are via the hydraulic line with corresponding work spaces 13 adjacent hydraulic cylinder piston units 7 connected, wherein the compound is such that when a shift of the pump element as the first hydraulic cylinder piston unit all other hydraulic cylinder piston units are coupled to the same direction shift.
  • the working space 13 of the cylinder-piston unit 7 is formed in a first region 18 with a cross-section which is the same in all other of the longitudinal direction in longitudinal direction arranged cylinder-piston units.
  • a region 19 of the working space is formed with an enlarged cross-section, in which region the cylinder cross-sections of the displaced in the longitudinal direction rail cylinder piston units are different from each other to adjust the respectively required piston stroke.
  • the end-position securing device in this case comprises locking elements 20 formed as a ball, which are received in a driver sleeve 21.
  • the locking members 20 in this case cooperate with stop shoulders, which are formed on a piston 11 attached to the piston end piece 22.
  • a push-on valve 23 is arranged, which opens and closes the piston 11 axially passing through and the two working spaces 13 connecting bore 24.
  • the impact valve is actuated by a projection attached to the cylinder bottom, for example in the form of a bolt 25, whereby the fluid of the hydraulic actuator drive can pass through the bore 24 in the other working space, with a further piston movement is suppressed.
  • a number of components are arranged in the region 18 with a constant cross-section, so that an adaptation of these components to the different cross sections of the area 19 is not required.
  • a distance piece 26 is provided, which is arranged between the hydraulic cylinder and the coupling flange 27.
  • the installation length L is kept constant, so that the same mounting situation for receiving the cylinder piston units can be found in total in all adjustment levels.

Description

Die Erfindung betrifft eine Einrichtung zum Umstellen von Weichen, bei welcher eine Mehrzahl von miteinander gekuppelten hydraulischen Stell-Einrichtungen in Schienen-Längsrichtung versetzt angeordnet ist und die Zylinderkolben-Aggregate der hydraulischen Stell-Einrichtungen zu gleichsinnigem Antrieb mit einander verbunden sind. Eine derartige Einrichtung ist beispielsweise aus der WO 96/00160 bekannt geworden.The invention relates to a device for changing over points, in which a plurality of mutually coupled hydraulic adjusting devices is arranged offset in the longitudinal direction rail and the cylinder piston units of the hydraulic actuating devices are connected to the same direction drive with each other. Such a device is for example from the WO 96/00160 known.

Prinzipiell müssen bei der Umstellung von Weichen die entlang der Schienen-Längsrichtung unterschiedlichen Stellwege berücksichtigt werden. Der erforderliche Umstellweg ist hierbei umso kleiner, je näher die Angriffsstelle des jeweiligen Zylinderkolben-Aggregates zur Einspannstelle der Zungenschiene angeordnet ist. Darüber hinaus sind unterschiedliche Umstellkräfte zu berücksichtigen, welche mit geringer werdendem Abstand von der Einspannstelle der Zungenschiene größer werden. Dies ergibt sich aus dem Hebelgesetz sowie aus der Tatsache, dass der Querschnitt der Zungenschiene in einem von der Einspannstelle der Zungenschiene entfernten Bereich geringer ist als in einem der Einspannstelle benachbarten Bereich. Zur Einstellung des jeweils erforderlichen Umstellhubes der hydraulischen Zylinderkolben-Aggregate wurde in der WO 96/00160 vorgeschlagen, innerhalb des Kolbenhubes des hydraulischen Zylinderkolben-Aggregates Aufstoßventile anzuordnen, welche in die beiden Arbeitsräume des Zylinderkolben-Aggregates verbindende Leitung z.B. in Form einer Bohrung des Kolbens eingeschaltet waren. Abhängig von der Kolbenstellung wird diese Verbindung unterbrochen oder es herrscht Durchfluss, wobei die Sollposition genau erreicht werden kann. Dadurch ist ein hydraulischer Gleichlauf der entlang der Schienen-Längsrichtung versetzt angeordneten und miteinander gekoppelten hydraulischen Zylinderkolben-Aggregate gegeben.In principle, the travel distances along the rail longitudinal direction must be taken into account when changing over switches. The required Umstellweg here is the smaller, the closer the point of attack of each cylinder piston unit is arranged to the clamping of the tongue rail. In addition, different Umstellkräfte be considered, which are larger with decreasing distance from the clamping of the tongue rail. This is due to the law of leverage as well as the fact that the cross section of the tongue rail is smaller in an area remote from the clamping point of the tongue rail than in an area adjacent to the clamping point. To adjust the respectively required Umstellhubes the hydraulic cylinder-piston units was in the WO 96/00160 proposed to arrange thrust valves within the piston stroke of the hydraulic cylinder-piston unit, which were turned on in the two working spaces of the cylinder-piston unit connecting line, for example in the form of a bore of the piston. Depending on the piston position, this connection is interrupted or there is flow, whereby the target position can be reached exactly. As a result, a hydraulic synchronization of the along the rail longitudinal direction staggered and coupled to each other hydraulic cylinder-piston units is given.

Aus der DE OS 21 44 564 ist ein alternativer Vorschlag zur Einstellung der geforderten weg-abhängigen Verstellung bekannt geworden, gemäß welchem für einen hydraulischen Weichen-Stellantrieb Zylinderkolben mit identischen Dimensionen verwendet werden, wobei zwischen dem Zylinder und der dazu gehörigen Weichenzunge ein Bauteil angeordnet ist, in dem der jeweils erforderliche Leerweg einstellbar ist. Dies erfordert jedoch aufwendige mechanische Einbauten und erhöht dadurch den konstruktiven Aufwand für die Umstell-Vorrichtung erheblich. Wie der WO 96/00160 entnommen werden kann und auch aus der EP 0 778 191 bekannt ist, können zur Einstellung eines entlang der Schienen-Längsrichtung mit zunehmender Nähe zur Einspannstelle der Weichenzunge kürzer werdenden Umstellhubes die Querschnitte der jeweiligen Hydraulik-Zylinder geändert werden. Dabei besteht jedoch das Problem, dass eine Umstell-Vorrichtung aus einer Mehrzahl von Hydraulik-Zylindern mit unterschiedlichen Querschnitten besteht, sodass sich der Einbau einer derartigen Umstellvorrichtung auf Grund der Vielzahl unterschiedlicher Dimensionen aufwendig gestaltet. Auch die Herstellung und der Zusammenbau der Hydraulik-Zylinder ist mit einem höheren Aufwand verbunden, da ja auch alle mit dem hydraulischen Zylinderkolben-Aggregat verbundenen Teile oder sämtliche im Zylinder angeordneten Teile wie beispielsweise Endlagen-Sicherheitseinrichtungen, Sicherheits-Schließvorrichtungen und/oder Sensoren an die unterschiedlichen Dimensionen angepasst werden müssen. Auch die Einbaumaße der unterschiedlich dimensionierten Hydraulik-Zylinder ändern sich entsprechend, sodass der Einbau zusätzlich erschwert wird.From the DE OS 21 44 564 an alternative proposal for adjusting the required path-dependent adjustment is known become, according to which for a hydraulic switch actuator cylinder pistons are used with identical dimensions, wherein between the cylinder and the associated switch blade a component is arranged, in which the respectively required free travel is adjustable. However, this requires expensive mechanical installations and thereby increases the design effort for the Umstell device considerably. Again WO 96/00160 can be taken and also from the EP 0 778 191 is known, the cross sections of the respective hydraulic cylinder can be changed to adjust a shorter along the rail longitudinal direction with increasing proximity to the clamping point of the switch tongue Umstellhubes. However, there is the problem that a switching device consists of a plurality of hydraulic cylinders with different cross sections, so that the installation of such a switching device due to the large number of different dimensions designed consuming. The production and assembly of the hydraulic cylinder is associated with a higher cost, since all connected to the hydraulic cylinder-piston unit parts or all arranged in the cylinder parts such as end-position safety devices, safety locks and / or sensors to the different dimensions must be adjusted. The installation dimensions of the differently dimensioned hydraulic cylinders also change accordingly, which makes installation even more difficult.

Die vorliegende Erfindung zielt nun darauf ab, eine Einrichtung zum Umstellen von Weichen zu schaffen, bei welcher eine exakte Einstellung der jeweils geforderten Stellwege und Stellkräfte gelingt, wobei gleichzeitig die Einbaumaße der Hydraulik-Zylinder unverändert bleiben und überdies die für die Umstell-Einrichtung erforderliche Teile-Vielfalt der Hydraulik-Aggregate möglichst gering gehalten werden kann. Zur Lösung dieser Aufgabe besteht die Erfindung im Wesentlichen darin, dass die Arbeitsräume der hydraulischen Zylinderkolben-Aggregate jeweils zwei Bereiche mit definiertem Zylinderquerschnitt aufweisen, wobei die jeweils Endlagen-Sicherungseinrichtungen, Sicherheits-Schließvorrichtungen, und/oder Sensoren enthaltenden Bereiche der in Schienen-Längsrichtung versetzt angeordneten Zylinderkolben-Aggregate untereinander gleichen Querschnitt aufweisen und die jeweils anderen Bereiche der in Schienen-Längsrichtung versetzt angeordneten Zylinderkolben-Aggregate zueinander unterschiedlichen Querschnitt aufweisen. Dadurch, dass nun die einzelnen Hydraulik-Zylinder in zwei funktionelle Bereiche getrennt betrachtet werden, wird die Möglichkeit geschaffen, die für die jeweilige Hub-Einstellung erforderliche Querschnittsveränderung des Zylinders lediglich in einem der beiden Bereiche vorzunehmen, in welchem auf ein Minimum an anderen Bestandteilen des Zylinderkolben-Aggregates Rücksicht genommen werden muss. So befinden sich in dem ersten Bereich, welcher in sämtlichen entlang der Schienen-Längsrichtung angeordneten Zylinderkolben-Aggregaten gleichen Querschnitt aufweist, die Endlagen-Sicherheitseinrichtungen, die Sicherheits-Schließvorrichtungen und/oder Sensoren, sodass diese Bauteile mit den selben Dimensionen ausgeführt und auf einfache Art und Weise in Serien-Fertigung hergestellt werden können. Zudem vereinfacht sich dadurch der Einbau dieser Einrichtungen in den Hydraulik-Zylinder, da immer gleiche Werkzeuge zum Einsatz gelangen können. Der andere Bereich der Zylinderkolben-Aggregate ist nun mit jeweils unterschiedlichem Querschnitt ausgebildet, um den Verstellhub an die jeweils entlang der Schienen-Längsrichtung unterschiedlichen Gegebenheiten anpassen zu können. Gleichzeitig gelingt es dadurch, die jeweils erforderlichen Stellkräfte zu optimieren, wobei mit zunehmender Nähe zur Einspannstelle der Weichenzunge höhere Umstellkräfte auf die Zunge einwirken. Durch die exakte Kolbenhub-Anpassung wird das Rest-Spülvolumen wesentlich verringert und damit die internen hydraulischen Verluste der Umstell-Vorrichtung erheblich vermindert.The present invention now aims to provide a means for changing over switches, in which an exact adjustment of the respectively required travel paths and actuating forces succeeds, at the same time the installation dimensions of the hydraulic cylinder remain unchanged and also required for the Umstell device parts Variety of hydraulic units can be kept as low as possible. To solve this problem, the invention consists essentially in that the working spaces of the hydraulic cylinder-piston units each having two areas with a defined cylinder cross-section, wherein the respective end position securing devices, safety locking devices, and / or sensors containing areas of the rail longitudinally staggered cylinder piston units have the same cross-section with each other and the other areas of the rail longitudinally offset arranged cylinder piston units have mutually different cross section. The fact that now the individual hydraulic cylinders are considered separated into two functional areas, the possibility is created to make the required for the respective stroke adjustment cross-sectional change of the cylinder only in one of the two areas in which to a minimum of other components of the Cylinder piston aggregates must be considered. Thus, in the first area, which has the same cross section in all along the rail longitudinal direction arranged cylinder piston units, the end position safety devices, the safety shutters and / or sensors, so that these components with the same dimensions executed and simple way and manner in mass production can be made. In addition, this simplifies the installation of these facilities in the hydraulic cylinder, as always the same tools can be used. The other area of the cylinder-piston units is now formed in each case with a different cross-section in order to be able to adapt the adjustment stroke to the different conditions along the longitudinal direction of the rail. At the same time it is possible thereby to optimize the respectively required restoring forces, with higher Umstellkräfte acting on the tongue with increasing proximity to the clamping point of the switch tongue. Due to the exact piston stroke adjustment, the residual flushing volume is significantly reduced and thus significantly reduces the internal hydraulic losses of the changeover device.

In bevorzugter Weise ist hierbei die Ausbildung derart weitergebildet, dass der Endlagen-Sicherungseinrichtungen, Sicherheits-Schließvorrichtungen, und/oder Sensoren enthaltende Bereich einen kleineren Querschnitt aufweist als der andere Bereich. Dadurch können die in dem betreffenden Bereich angeordneten Endlagen-Sicherheitseinrichtungen bzw. Sicherheits-Schließvorrichtungen in vorteilhafter Weise angeordnet werden, wobei eine besonders klein bauende Einrichtung verwirklicht werden kann.In a preferred manner, the training is developed such that the end position securing devices, safety locking devices, and / or sensors containing area has a smaller cross-section than the other area. As a result, the end-position safety devices or safety closing devices arranged in the area in question can be arranged in an advantageous manner, wherein a particularly small-sized device can be realized.

Obwohl die Einstellung des jeweils erforderlichen Kolbenhubes durch die oben genannten Maßnahmen bereits äußerst exakt gelingt, können in bevorzugter Weise zusätzliche Einrichtungen vorgesehen werden, um eine Feinjustierung vorzunehmen. Zu diesem Zweck ist die Ausbildung derart weitergebildet, dass die Arbeitsräume des Zylinderkolben-Aggregates durch eine Bohrung des Kolbens miteinander verbunden sind und dass Aufstoß-Ventile in der Bohrung angeordnet sind. Wie an sich bekannt, sind die Arbeitsräume eines Zylinderkolben-Aggregates in diesem Fall durch eine Leitung in Form einer Bohrung mit einander verbunden, wobei Aufstoß-Ventile eingebaut sind. Diese Ventile werden mit einem mit dem Zylinder fest verbundenen Stößel betätigt, sodass die beiden Arbeitsräume des Zylinders verbindende Leitung geöffnet wird und eine weitere Verstellung des Kolbens unterbunden wird.Although the setting of the piston stroke required in each case by the above measures already very accurately succeed, additional facilities may be provided in a preferred manner to make a fine adjustment. For this purpose, the training is developed such that the working spaces of the cylinder-piston unit are interconnected by a bore of the piston and that Aufstoß-valves are arranged in the bore. As is known per se, the working spaces of a cylinder-piston unit in this case are connected by a conduit in the form of a bore with each other, wherein push-on valves are installed. These valves are operated with a plunger fixedly connected to the cylinder, so that the line connecting the two working chambers of the cylinder is opened and a further adjustment of the piston is prevented.

Durch die Änderung des Kolbenhubes mit dem jeweils unterschiedlichen Zylinder-Querschnitt ändert sich naturgemäß auch die Gesamt-Baulänge des Zylinderkolben-Aggregates, sodass besondere Vorkehrungen zu treffen sind, um gleich bleibende Einbaumaße der Umstell-Zylinder zu gewährleisten. Zu diesem Zweck ist die Ausbildung mit Vorteil derart weitergebildet, dass der Zylinder unter Zwischenschaltung eines Distanzstückes mit einem Kopplungsflansch verbunden ist, wobei die Länge des Distanzstückes der durch die Querschnittsvergrößerung des Zylinders hervorgerufenen Hubverkürzung entspricht. Die Distanzstücke überbrücken somit die durch den verkürzten Hub hervorgerufene geringere Gesamt-Baulänge des Zylinders, sodass die Einbau-Situation und die Angriffs-Situation für das Gestänge dieselben bleiben und die Einbaumaße der Einrichtung entlang der gesamten Zungenschiene gleich sind. Dadurch können Anpassungen der mit den Hydraulik-Zylindern verbundenen Teile auf ein Minimum reduziert werden, sodass der Aufwand für den Einbau erheblich verringert werden kann.By changing the piston stroke with the respective different cylinder cross section naturally changes the overall length of the cylinder piston unit, so special precautions must be taken to ensure consistent installation dimensions of Umstell cylinder. For this purpose, the training is advantageously developed such that the cylinder is connected with the interposition of a spacer with a coupling flange, wherein the length of the spacer corresponds to the caused by the cross-sectional enlargement of the cylinder Hubverkürzung. The spacers thus bridge the through the shortened stroke caused reduced total overall length of the cylinder, so that the installation situation and the attack situation for the linkage remain the same and the installation dimensions of the device along the entire tongue rail are the same. As a result, adjustments to the parts connected to the hydraulic cylinders can be reduced to a minimum, so that the cost of installation can be significantly reduced.

Die Erfindung wird nachfolgend an Hand eines von in der Zeichnung schematisch dargestellten Ausführungsbeispieles näher erläutert. In diesem zeigen Figur 1 eine Draufsicht auf einen Teilbereich einer Schienenweiche, Figur 2 ein Detail der Verbindung eines konventionellen Zylinderkolben-Aggregates mit einer mechanischen Schieberstange, Figur 3 eine schematische Teilansicht der Darstellung nach Fig. 2, Figur 4 eine vergrößerte Darstellung eines konventionellen hydraulischen Zylinderkolben-Aggregates teilweise im Schnitt, Figur 5 eine Draufsicht auf die Darstellung der Fig. 4 und Figur 6 eine Darstellung eines erfindungsgemäß zum Einsatz gelangenden hydraulischen Zylinderkolben-Aggregates im Schnitt.The invention will be explained in more detail with reference to an embodiment schematically illustrated in the drawing. FIG. 2 shows a detail of the connection of a conventional cylinder-piston unit with a mechanical slide rod, FIG. 3 shows a schematic partial view of the illustration according to FIG. 2, FIG. 4 shows an enlarged view of a conventional hydraulic cylinder piston Figure 5 is a plan view of the illustration of Fig. 4 and Figure 6 is a representation of a reaching according to the invention used hydraulic cylinder piston unit in section.

In Fig. 1 sind schematisch Schienen 1 angedeutet, welche mit Schwellen 2 verbunden sind. Im Bereich einer Weiche sind zusätzlich zu den Regelschienen 1 Zungenschienen 3 vorgesehen, welche über einen Stellantrieb, welcher schematisch mit 4 bezeichnet ist, in ihre jeweilige Position gebracht werden können. Der Stellantrieb 4 wirkt hierbei über Schieberstangen 5 auf die Zungenschienen 3. Die Schieberstangen 5 sind über einen mittigen Abgriff 6 mit einem hydraulischen Zylinderkolben-Aggregat 7 gekoppelt. Es sind weiters zusätzliche Zylinderkolben-Aggregate 7 im Schienenverlauf ersichtlich, welche jeweils mit Schieberstangen und Verschluss-Einrichtungen, welche wiederum schematisch mit 5 bezeichnet werden, gekoppelt sind. Bei der Darstellung in Fig. 2 ist die Art der mechanischen Verbindung der hydraulischen Zylinderkolben-Aggregate 7 mit den Schieberstangen 5 deutlicher ersichtlich. Die Zylinderkolben-Aggregate 7 weisen einen Kulissenstein 8 auf, in welchen ein Bolzen 9 der Schieberstange 5 eingreift. Bei Betätigung der Schieberstange 5 wird der Kulissenstein und damit der Kolben der hydraulischen Zylinderkolben-Aggregate verschoben, wodurch aus dem jeweiligen Arbeitsraum Medium ausgepresst wird. In Fig. 3 ist die Art der Festlegung der hydraulischen Zylinderkolben-Aggregate 7 an der Schwelle 2 verdeutlicht. Die Festlegung erfolgt über ein Anschlagblech 10, welches an der Schwelle 2 festgelegt ist. Die hydraulischen Zylinderkolben-Aggregate 7 benötigen hierbei relativ geringen Platz, sodass das Stopfen des Unterbaues nicht beeinträchtigt wird.In Fig. 1 rails 1 are schematically indicated, which are connected to sleepers 2. In the area of a switch 1 tongue rails 3 are provided in addition to the control rails, which can be brought via an actuator, which is schematically indicated by 4, in their respective position. The actuator 4 acts on slide rods 5 on the tongue rails 3. The slide rods 5 are coupled via a central tap 6 with a hydraulic cylinder-piston unit 7. There are also additional cylinder piston assemblies 7 in the rail track visible, which are each coupled with slide rods and closure devices, which in turn are indicated schematically with 5. In the illustration in Fig. 2, the type of mechanical connection of the hydraulic cylinder-piston units 7 with the slide rods 5 is clearly visible. The cylinder-piston units 7 have a sliding block. 8 in which a pin 9 of the slide rod 5 engages. Upon actuation of the slide rod 5 of the sliding block and thus the piston of the hydraulic cylinder piston units is displaced, whereby medium is pressed out of the respective working space. In Fig. 3, the manner of determining the hydraulic cylinder-piston units 7 at the threshold 2 is illustrated. The determination is made via a stop plate 10, which is fixed to the threshold 2. The hydraulic cylinder-piston units 7 require relatively little space, so that the plug of the substructure is not affected.

Die Funktionsweise der hydraulischen Zylinderkolben-Aggregate und ihre bevorzugte Ausgestaltung ist in den Figuren 4 und 5 näher erläutert. In Fig. 4 und 5 ist ein Plunger 11 aufweisendes hydraulisches Zylinderkolben-Aggregat 7 ersichtlich. Die Plunger 11 tauchen über Dichtungen 12 in die jeweiligen Arbeitsräume 13 der hydraulischen Zylinderkolben-Aggregate, und bei einer Verschiebung des Plungers 11 in einer der Richtungen des Doppelpfeiles 14 wird jeweils Medium aus dem entsprechenden Arbeitsraum 13 ausgepresst. Die Hydraulikanschlüsse münden an die außen liegenden Durchbrechungen 15 im jeweiligen Arbeitsraum 13. Der Kulissenstein ist wiederum mit 8 bezeichnet, über welchen die mechanische Kopplung erfolgt. Zum Schutz der Einrichtung ist weiters eine Gummimanschette 16 vorgesehen.The operation of the hydraulic cylinder-piston units and their preferred embodiment is explained in more detail in Figures 4 and 5. In Fig. 4 and 5, a plunger 11 having hydraulic cylinder-piston unit 7 can be seen. The plungers 11 dive via seals 12 in the respective working chambers 13 of the hydraulic cylinder-piston units, and in a displacement of the plunger 11 in one of the directions of the double arrow 14 each medium from the corresponding working space 13 is pressed out. The hydraulic connections lead to the outer openings 15 in the respective working space 13. The sliding block is again denoted by 8, via which the mechanical coupling takes place. To protect the device further a rubber boot 16 is provided.

In Fig. 5 ist die Einrichtung nach Fig. 4 in der Draufsicht ersichtlich.In Fig. 5, the device of FIG. 4 in the plan view can be seen.

Die einzelnen hydraulischen Zylinderkolben-Aggregate sind miteinander gekoppelt und in Schienen-Längsrichtung versetzt angeordnet, wobei das erste hydraulische Zylinderkolben-Aggregat als Pumpelement für die nachfolgenden Zylinderkolben-Aggregate wirkt. Dabei sind die Arbeitsräume 13 des ersten als Pumpelement wirksamen hydraulischen Zylinderkolben-Aggregates 7 über die Hydraulikleitung mit entsprechenden Arbeitsräumen 13 benachbarter Hydraulik-Zylinderkolben-Aggregate 7 verbunden, wobei die Verbindung dergestalt erfolgt, dass bei einer Verschiebung des als Pumpelement ersten hydraulischen Zylinderkolben-Aggregates alle weiteren Hydraulik-Zylinderkolben-Aggregate zu gleichsinniger Verschiebung gekoppelt sind. Wenn nun parallel oder in Serie geschaltete Zylinderkolben-Aggregate einen vom Weg des als Pumpelement verwendeten hydraulischen Zylinderkolben-Aggregates verschiedenen Weg zurücklegen sollen, muss der Querschnitt der einzelnen Zylinderkolben-Aggregate entsprechend beeinflusst werden, wobei zu diesem Zweck erfindungsgemäß Hydraulik-Zylinder gemäß Fig. 6 zum Einsatz gelangen. Der Arbeitsraum 13 des Zylinderkolben-Aggregates 7 ist in einem ersten Bereich 18 mit einem Querschnitt ausgebildet, welcher auch in allen anderen der in Schienen-Längsrichtung versetzt angeordneten Zylinderkolben-Aggregate gleich ist. In einem Bereich 19 ist der Arbeitsraum mit einem vergrößerten Querschnitt ausgebildet, wobei in diesem Bereich die Zylinder-Querschnitte der in Schienen-Längsrichtung versetzt angeordneten Zylinderkolben-Aggregate zueinander unterschiedlich sind, um den jeweils erforderlichen Kolbenhub einzustellen. Im Bereich 18 sind nun Endlagen-Sicherungseinrichtungen bzw. Sicherheits-Schließvorrichtungen angeordnet. Die Endlagen-Sicherungseinrichtung umfasst hierbei als Kugel ausgebildete Sperrglieder 20, welche in einer Mitnehmer-Hülse 21 aufgenommen sind. Die Sperrglieder 20 wirken hierbei mit Anschlag-Schultern zusammen, welche an einem am Kolben 11 befestigten Kolben-Endstück 22 ausgebildet sind. Im Kolben-Endstück 22 ist ein Aufstoß-Ventil 23 angeordnet, welches, die den Kolben 11 axial durchsetzende und die beiden Arbeitsräume 13 verbindende Bohrung 24 öffnet bzw. schließt. Das Aufstoß-Ventil wird dabei von einem am Zylinderboden angebrachten Vorsprung z.B. in Form eines Bolzens 25 betätigt, wodurch das Fluid des hydraulischen Stell-Antriebes durch die Bohrung 24 in den jeweils anderen Arbeitsraum gelangen kann, wobei eine weitere Kolbenbewegung unterbunden wird. Es sind somit eine Reihe von Bauteilen in dem Bereich 18 mit gleich bleibendem Querschnitt angeordnet, sodass eine Anpassung dieser Bauteile an die unterschiedlichen Querschnitte des Bereiches 19 nicht erforderlich ist.The individual hydraulic cylinder-piston units are coupled together and offset in the rail longitudinal direction, wherein the first hydraulic cylinder-piston unit acts as a pumping element for the subsequent cylinder-piston units. In this case, the working spaces 13 of the first hydraulic cylinder-piston unit 7, which acts as a pumping element, are via the hydraulic line with corresponding work spaces 13 adjacent hydraulic cylinder piston units 7 connected, wherein the compound is such that when a shift of the pump element as the first hydraulic cylinder piston unit all other hydraulic cylinder piston units are coupled to the same direction shift. If cylinder-piston units connected in parallel or in series are to travel a different path from the path of the hydraulic cylinder-piston unit used as the pump element, the cross-section of the individual cylinder-piston units must be influenced accordingly, hydraulic cylinders according to FIG to be used. The working space 13 of the cylinder-piston unit 7 is formed in a first region 18 with a cross-section which is the same in all other of the longitudinal direction in longitudinal direction arranged cylinder-piston units. In a region 19 of the working space is formed with an enlarged cross-section, in which region the cylinder cross-sections of the displaced in the longitudinal direction rail cylinder piston units are different from each other to adjust the respectively required piston stroke. In the area 18 end position safety devices or safety closing devices are now arranged. The end-position securing device in this case comprises locking elements 20 formed as a ball, which are received in a driver sleeve 21. The locking members 20 in this case cooperate with stop shoulders, which are formed on a piston 11 attached to the piston end piece 22. In the piston end piece 22, a push-on valve 23 is arranged, which opens and closes the piston 11 axially passing through and the two working spaces 13 connecting bore 24. The impact valve is actuated by a projection attached to the cylinder bottom, for example in the form of a bolt 25, whereby the fluid of the hydraulic actuator drive can pass through the bore 24 in the other working space, with a further piston movement is suppressed. Thus, a number of components are arranged in the region 18 with a constant cross-section, so that an adaptation of these components to the different cross sections of the area 19 is not required.

Um die Einbaulänge der hydraulischen Zylinderkolben-Aggregate in allen Verstell-Ebenen gleich zu halten, ist ein DistanzStück 26 vorgesehen, welches zwischen dem Hydraulik-Zylinder und dem Kopplungsflansch 27 angeordnet ist. Durch geeignete Wahl der Länge A des Distanz-Stückes 26 wird die Einbau-Länge L konstant gehalten, sodass insgesamt in allen Verstell-Ebenen die gleiche Befestigungssituation für die Aufnahme der Zylinderkolben-Aggregate vorgefunden werden kann.In order to keep the installation length of the hydraulic cylinder-piston units in all adjustment levels equal, a distance piece 26 is provided, which is arranged between the hydraulic cylinder and the coupling flange 27. By a suitable choice of the length A of the spacer piece 26, the installation length L is kept constant, so that the same mounting situation for receiving the cylinder piston units can be found in total in all adjustment levels.

Claims (4)

  1. Device for switching of railway switches in which a plurality of hydraulic positioning devices coupled with each other is arranged in the longitudinal direction of the rails in an offset manner and in which the cylinder piston-aggregates of the hydraulic positioning devices are connected to each other for actuation in the same direction, characterized in that the working chambers (13) of the hydraulic cylinder piston-aggregates (7) each have two regions (18,19) with a defined cross section of the cylinder, whereat the regions (18) of the cylinder piston-aggregate (7), being arranged in the longitudinal direction of the rails in an offset manner bearing locking devices for securing the end-positions (20,21), security-locking devices and/or sensors respectively have the same cross section and the respective other regions (19) of the cylinder piston-aggregates (7), being arranged in the longitudinal direction of the rails in an offset manner, have different cross sections to each other.
  2. Device according to claim 1, characterized in that the region (18) bearing locking devices (20,21) for securing the end positions, security locking devices and/or sensors have a smaller cross section than the other region (19).
  3. Device according to claim 1 or 2, characterized in that the working chambers (13) of the cylinder piston-aggregates (7) are connected to each other by means of a bore (24) of the piston (11) and that push-open-valves (23) are arranged in the bore (24).
  4. Device according to any one of claims 1 to 3, characterized in that the cylinder (7) is connected with a coupling flange (27) with a distance piece (26) being interposed whereat the length (A) of the distance piece (26) corresponds to the shortening of the stroke caused by the augmentation of the cross section of the cylinder (7).
EP02753888A 2001-07-31 2002-06-26 Device for resetting points Expired - Lifetime EP1412241B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200230628T SI1412241T1 (en) 2001-07-31 2002-06-26 Device for resetting points

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0060601U AT5757U1 (en) 2001-07-31 2001-07-31 DEVICE FOR MOVING SWITCHES
AT60601U 2001-07-31
PCT/AT2002/000184 WO2003011671A1 (en) 2001-07-31 2002-06-26 Device for resetting points

Publications (2)

Publication Number Publication Date
EP1412241A1 EP1412241A1 (en) 2004-04-28
EP1412241B1 true EP1412241B1 (en) 2007-08-01

Family

ID=63165100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02753888A Expired - Lifetime EP1412241B1 (en) 2001-07-31 2002-06-26 Device for resetting points

Country Status (16)

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US (1) US7178764B2 (en)
EP (1) EP1412241B1 (en)
AT (2) AT5757U1 (en)
AU (1) AU2002322136B2 (en)
BG (1) BG65297B1 (en)
BR (1) BR0211596A (en)
CA (1) CA2455734A1 (en)
DE (1) DE50210594D1 (en)
DK (1) DK1412241T3 (en)
ES (1) ES2290322T3 (en)
HU (1) HUP0401425A2 (en)
NO (1) NO20040425L (en)
PL (1) PL201761B1 (en)
PT (1) PT1412241E (en)
WO (1) WO2003011671A1 (en)
ZA (1) ZA200400704B (en)

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AT502042B1 (en) * 2005-05-18 2007-01-15 Vae Gmbh DEVICE FOR TESTING OF MOVABLE PARTS OF A RAILWAY
AT507216B1 (en) * 2008-09-11 2010-03-15 Vae Eisenbahnsysteme Gmbh DEVICE FOR DETERMINING A SOILING DEVICE ON BACK RAILS OF A RAILWAY
US8684318B2 (en) * 2010-09-16 2014-04-01 Spx International Limited Mechanical lock
CN102951181B (en) * 2012-11-16 2015-08-19 北京中铁通电务技术开发有限公司 A kind of Sleeper type electrohydraulic switcher
US9090268B2 (en) * 2013-04-18 2015-07-28 Siemens Industry, Inc. Point lug and rail mount connections for a railroad point machine apparatus
US9863096B2 (en) * 2015-07-02 2018-01-09 James Arnold Point detector overtie structure
AU2015415489B2 (en) * 2015-11-24 2019-06-20 Siemens Mobility Pty Ltd. Point machine and switch with snap-action and method of operating said point machine
CN105539509B (en) * 2015-12-07 2017-05-31 河北道迪铁路器材有限公司 The double locking bar lubricating couplers of electrohydraulic point machine
CN105438221B (en) * 2015-12-24 2017-04-12 北京安润通电子技术开发有限公司 Single-side extrudable turnout device and use method thereof

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DE2144564A1 (en) * 1971-09-06 1973-03-15 Siemens Ag TURNOUT SYSTEM FOR RAILWAY SYSTEMS WITH SLIM SWITCHES
DE2516478C3 (en) * 1975-04-15 1978-12-07 Suspa-Federungstechnik Fritz Bauer & Soehne Ohg, 8503 Altdorf Gas spring
FR2594510B1 (en) * 1986-02-18 1988-06-24 Bourcier Carbon Christian HYDRAULIC SHOCK ABSORBER WITH CONTROLLED DAMPING
IT1242226B (en) 1990-10-10 1994-03-03 Sasib Spa MANEUVERING DEVICE FOR RAILWAY SWITCHES, IN PARTICULAR FOR HIGH SPEED LINES
WO1996000160A1 (en) 1994-06-24 1996-01-04 Vae Aktiengesellschaft Device for changing points
AT401256B (en) 1994-06-24 1996-07-25 Vae Ag Device for changing points
DE19525012A1 (en) 1995-03-17 1996-09-19 Siemens Ag Point machine
AT403462B (en) 1995-05-03 1998-02-25 Vae Ag DEVICE FOR MOVING SWITCHES
DE19545784A1 (en) * 1995-12-08 1997-06-12 Sel Alcatel Ag Device for the simultaneous application of force by means of hydraulically connected hydraulic actuating units
AT403463B (en) 1995-12-14 1998-02-25 Vae Ag DEVICE FOR SECURING THE END POSITIONS OF SWITCH AND CROSS-CONTROL ACTUATORS
AT405925B (en) * 1997-05-27 1999-12-27 Vae Ag DEVICE FOR LOCKING THE END OF MOVING PARTS

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Also Published As

Publication number Publication date
PL201761B1 (en) 2009-05-29
ES2290322T3 (en) 2008-02-16
DE50210594D1 (en) 2007-09-13
PT1412241E (en) 2007-10-30
AU2002322136B2 (en) 2008-06-05
US20050139729A1 (en) 2005-06-30
HU0401425D0 (en) 2004-08-30
DK1412241T3 (en) 2007-12-10
PL365440A1 (en) 2005-01-10
CA2455734A1 (en) 2003-02-13
BG65297B1 (en) 2007-12-28
HUP0401425A2 (en) 2004-10-28
US7178764B2 (en) 2007-02-20
ATE368603T1 (en) 2007-08-15
EP1412241A1 (en) 2004-04-28
AT5757U1 (en) 2002-11-25
NO20040425L (en) 2004-01-30
BR0211596A (en) 2004-07-13
BG108607A (en) 2005-02-28
ZA200400704B (en) 2004-10-15
WO2003011671A1 (en) 2003-02-13

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