EP0566941A1 - Hydraulic push and pull device, especially for railway rails - Google Patents

Hydraulic push and pull device, especially for railway rails Download PDF

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Publication number
EP0566941A1
EP0566941A1 EP93105903A EP93105903A EP0566941A1 EP 0566941 A1 EP0566941 A1 EP 0566941A1 EP 93105903 A EP93105903 A EP 93105903A EP 93105903 A EP93105903 A EP 93105903A EP 0566941 A1 EP0566941 A1 EP 0566941A1
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EP
European Patent Office
Prior art keywords
hydraulic
hydraulic pressure
articulated
pressure
rail
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Granted
Application number
EP93105903A
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German (de)
French (fr)
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EP0566941B1 (en
Inventor
Mario Dr. Casoni
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Goldschmidt ETB GmbH
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Elektro Thermit GmbH
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/42—Undetachably joining or fastening track components in or on the track, e.g. by welding, by gluing; Pre-assembling track components by gluing; Sealing joints with filling components
    • E01B29/46—Devices for holding, positioning, or urging together the rail ends

Definitions

  • the invention relates to a hydraulic pressure and drawing device, in particular for railroad tracks, for mechanical compensation of climate-related influences during the continuous welding of railroad tracks.
  • the smallest climate-related changes in length of continuously welded railroad tracks are achieved by welding the individual railroad tracks to one another at an average annual temperature.
  • the invention eliminates these disadvantages by proposing a hydraulic pushing and pulling device, which is characterized in that only free piston surfaces come into effect both in pulling and in pushing operation.
  • the subject matter of the invention is defined in claims 1 to 14.
  • the hydraulic pushing and pulling device is further characterized in that it has at least one hydraulic cylinder which can be turned through 180 ° together with a pair of articulated levers which act on one rail track and on the other at the opposite end of the device a corresponding one , on the other rail track engaging pair of articulated levers, which can also be turned through 180 °.
  • the device is switched to pull and push operation and always the same free piston surface is brought into the working position.
  • This construction ensures that the device works with maximum and identical force ratios in both the push and pull mode.
  • the device can be easily dismantled and can be arranged on the rail tracks during operation so that emergency train operation can also take place if necessary, which is advantageous in the context of repair work.
  • the device according to FIGS. 1, 2 and 3 has two cross members 5 and 6, which are passed under the rail tracks 43 and 44. They have profile-matching adapters 27 for the base of the rails 43 and 44. At the outer ends of the crossbeams, journals 7, 8, 9 and 10 project vertically upwards, onto which articulated levers 1, 2, 3 and 4 can be attached.
  • the articulated levers 1, 2, 3 and 4 have contact shoes 1a, 2a, 3a and 4a. These consist of a wear material that is particularly well suited for adhesion to the rail web. They have profiles 45, which increase liability.
  • the screws 46 are provided for the detachable attachment of the system shoes.
  • the guide cages 51 and 52 have fastening eyes 37 and 39, which cooperate in the pulling operation via articulated bolts 34 with articulated forks 32 and 33 of pull or push rods 30 and 31, which in turn via articulated forks 21 and 22 at the outer ends 3b, 4b of the articulated levers 3 and 4 are articulated.
  • the hydraulic pressure cylinders 23 and 24 For the printing operation according to FIG. 2 (pushing apart the rails 43, 44), the hydraulic pressure cylinders 23 and 24 have fastening eyes 38 and 40 at their ends, which thereby, secured against buckling, into the pockets 32 'and 33' of the articulated forks 32 and 33 the rods 30 and 31 now acting as push rods interact.
  • the hydraulic pressure cylinders 23 and 24 are connected to a hydraulic pump 42 via lines 35 and 36.
  • the active hydraulic unit 23, 24 including guide cages 51, 52 is connected at 34 to the rods 30 and 31 which are subjected to tension.
  • the articulated levers 3 and 4 with their bearings 13, 14 are temporarily withdrawn from the pins 9, 10, turned through 180 ° and put back on.
  • the ends 3c, 4c and 1c, 2c of the articulated levers 3, 4 and 1, 2 engaging the rail webs 55 are directed away from the rail joint 50 in their arrowing.
  • each cylinder and guide unit 23/51 or 24/52 individually, as shown in FIG. 2 is shown.
  • all that is required is the temporary loosening of the bolts 15 and 16, the repositioning of the articulated levers 1 and 2 by lifting their bearings 11 and 13 from the pins 7 and 8 of the cross member 5 and turning them 180 °.
  • an adjustable limit stop 28 is provided, which on the one hand on the detachable bolts 15 and 16 on the articulated levers 1 and 2 and on the other hand via a ring 29 on the hydraulic cylinders 23 and 24 is set.
  • the device is suitable for quick and easy implementation of push and pull operations and vice versa. Due to the limit stop 28, it can work exactly according to the respective temperature conditions. By means of the pressure pump 42, which can also be operated by hand, the device operates without external energy, so that it can be used at any point in the route network.
  • the train operation can continue - if the rail joint 50 is not too large or is temporarily bridged during the work.
  • the pull or push rods 30 and 31 and their connection to the adjacent parts can also be designed differently, i.e. for example, more stable, and have additional devices against buckling at higher pressure forces.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Actuator (AREA)

Abstract

By means of the hydraulic push and pull device, a change in length of the rails (43, 44) is brought about, which corresponds to the deviation of the instantaneous rail temperature from the average temperature for the time of year. This happens by pushing apart or pulling together the rail ends (44, 43) to be welded together. Known combined hydraulic push and pull devices have the disadvantage that they work with free piston surfaces only in one of the two said operating states. This leads to unequal force ratios and to larger and heavier device units which are thus more expensive and more difficult to handle. The hydraulic push and pull device according to the invention is made in such a manner that the free piston surface (41), and specifically only the latter, comes into use in both operating states. This is achieved by the hydraulic cylinders (23, 24) being arranged turnably by 180 DEG , and thus in particular adjustably for pull or push operation, in the device. As a result, the free piston surface (41) of each cylinder (23, 24) is acted upon by the hydraulic medium both on pulling together of the rails (43, 44) and on pushing apart of the rails (43, 44). The result achieved is a light construction and identical operating conditions for the pulling together or for the pushing apart of railway rail ends (43, 44) to be welded together. <IMAGE>

Description

Die Erfindung betrifft eine hyraulische Druck- und Ziehvorrichtung, insbesondere für Eisenbahnschienen, zur mechanischen Kompensation klimabedingter Einflüsse beim durchgehenden Schweißen von Eisenbahnschienen.The invention relates to a hydraulic pressure and drawing device, in particular for railroad tracks, for mechanical compensation of climate-related influences during the continuous welding of railroad tracks.

Eisenbahnschienen unterliegen der Wärmedehnung. Bei niedrigen Temperaturen, wie im Winter oder nachts, ziehen sie sich zusammen, während sie im Sommer bei heißen Tagen ihre größte Dehnung erfahren.Railroad tracks are subject to thermal expansion. At low temperatures, such as in winter or at night, they contract, while in summer they experience their greatest stretch on hot days.

Die geringsten klimabedingten Längenänderungen durchgehend verschweißter Eisenbahnschienen erzielt man dadurch, indem man die einzelnen Schienenstränge bei mittlerer Jahrestemperatur miteinander verschweißt.The smallest climate-related changes in length of continuously welded railroad tracks are achieved by welding the individual railroad tracks to one another at an average annual temperature.

Da naturgemäß die mittlere Jahrestemperatur nur an wenigen Tagen und auch wiederum nur in relativ kurzen Zeitbereichen dieser Tage besteht, hilft man sich u.a. dahingehend, als daß man im Sommer die Schienen nachts verschweißt, was zu erheblichen Lohnkostensteigerungen führt.Since, of course, the average annual temperature only exists on a few days and also only in relatively short time periods of these days, help is provided, among other things. to the extent that the rails are welded at night in summer, which leads to considerable increases in labor costs.

Sind die Schienenstränge im Winter zu kalt, so ist es bekannt, diese entsprechend anzuwärmen, was mit erheblichem Aufwand verbunden ist. Auch ist es bekannt, zu warme Schienen im Sommer, welche sich in der Mittagshitze ganz erheblich aufheizen können, zu kühlen. Auch das ist äußerst aufwendig und teuer.If the rail tracks are too cold in winter, it is known to heat them accordingly, which is associated with considerable effort. It is also known to cool rails that are too warm in summer, which can heat up considerably in the midday heat. This is also extremely complex and expensive.

Man hat deshalb vorgeschlagen, Schienenziehgeräte oder auch Schienendruckgeräte zu verwenden, welche die der Abweichung der augenblicklichen Schienentemperatur von der mittleren Jahrestemperatur entsprechenden Längenänderungen bewirken können. Im allgemeinen sind solche Geräte hydraulisch betrieben und können entweder nur als Ziehgeräte oder nur als Druckgeräte ausgebildet werden. Das ist apparativ aufwendig, zumal es schwierig ist, zwei verschiedene Geräte exakt gleichen physikalischen Betriebsbedingungen zuzuordnen.It has therefore been proposed to use rail pulling devices or also rail pressure devices which can bring about the length changes corresponding to the deviation of the current rail temperature from the mean annual temperature. In general, such devices are operated hydraulically and can either be designed only as pulling devices or only as pressure devices. This is expensive in terms of equipment, especially since it is difficult to assign two different devices to exactly the same physical operating conditions.

Deshalb hat man schon Geräte vorgeschlagen, welche hydraulische Zylinder aufweisen, welche sowohl auf Druck als auch auf Zug beaufschlagt werden.For this reason, devices have already been proposed which have hydraulic cylinders which are acted upon both by pressure and by train.

Das Problem ist hierbei, daß die vom Kolben ausgeübte Druckkraft von der beaufschlagten Fläche abhängig ist. Auf der Kolbenstangenseite ist naturgemäß die beaufschlagte Kolbenfläche geringer als auf der freien Kolbenfläche, wodurch sich die Druckkraft, verändert man nicht den hydraulischen Druck, von der Zugkraft unterscheidet. Zur Erzielung gleicher Kräfte könnte man doppelt wirkende Zylinder einsetzen, welche auf beiden Seiten Kolbenstangen aufweisen. Die ringförmig verbleibenden Kolbenflächen wären aber geringer als die freien Kolbenflächen, was zu geringerer Kraftausnutzung führt.The problem here is that the compressive force exerted by the piston depends on the surface being acted upon. On the piston rod side, the applied piston area is naturally smaller than on the free piston area, which means that the compressive force, not changing the hydraulic pressure, differs from the tensile force. To achieve the same forces, one could use double-acting cylinders, which have piston rods on both sides. The piston areas remaining in a ring would, however, be smaller than the free piston areas, which leads to less use of force.

Um die beidseitig ringförmige Kolbenfläche so groß auszuführen, daß sie einer genügend großen freien Kolbenfläche entspricht, müssen die Hydraulikzylinder größer im Durchmesser sein. Dabei werden diese zu schwer.In order to make the piston surface annular on both sides so large that it corresponds to a sufficiently large free piston surface, the hydraulic cylinders must be larger in diameter. This makes them too heavy.

Ganz wesentlich bei solchen Geräten ist nämlich, daß diese leicht ständig von Schienenstoß zu Schienenstoß umgesetzt werden können. Das heißt, sie müssen leicht demontierbar, leicht zu transportieren und leicht wieder montierbar sein. Das aber ist mit solch schweren Geräten gemäß dem Stand der Technik nicht möglich.It is very important with such devices that they can easily be implemented continuously from rail joint to rail joint. That means they have to be easy to disassemble, easy to transport and easy to reassemble. However, this is not possible with such heavy devices according to the state of the art.

Die Erfindung beseitigt diese Nachteile dadurch, indem sie eine hydraulische Druck- und Ziehvorrichtung vorschlägt, welche dadurch gekennzeichnet ist, daß sowohl im Zug- als auch im Druckbetrieb nur freie Kolbenflächen zur Wirkung kommen. Dabei ist der Gegenstand der Erfindung in den Patentansprüchen 1 bis 14 definiert.The invention eliminates these disadvantages by proposing a hydraulic pushing and pulling device, which is characterized in that only free piston surfaces come into effect both in pulling and in pushing operation. The subject matter of the invention is defined in claims 1 to 14.

Damit ist gewährleistet, daß bei leichter Bauweise und entsprechend vertretbarem hydraulischen Öldruck die maximale und identische Kraft-Wirkung im Zug- und Druckbetrieb erreicht wird.This ensures that, with a lightweight construction and correspondingly acceptable hydraulic oil pressure, the maximum and identical force effect is achieved in the push and pull operation.

Gekennzeichnet ist die hydraulische Druck- und Ziehvorrichtung ferner dadurch, daß sie mindestens einen hydraulischen Zylinder aufweist, welcher um 180° zusammen mit einem Paar von Gelenkhebeln, welche an dem einen Schienenstrang angreifen, gewendet werden kann und zum anderen am gegenüberliegenden Ende der Vorrichtung ein entsprechendes, am anderen Schienenstrang angreifendes Paar von Gelenkhebeln aufweist, welches ebenfalls um 180° wendbar ist. Durch das Wenden genannter Einrichtungen wird die Vorrichtung auf Zug- und Druckbetrieb umgestellt und immer dieselbe freie Kolbenfläche in Arbeitsposition gebracht.The hydraulic pushing and pulling device is further characterized in that it has at least one hydraulic cylinder which can be turned through 180 ° together with a pair of articulated levers which act on one rail track and on the other at the opposite end of the device a corresponding one , on the other rail track engaging pair of articulated levers, which can also be turned through 180 °. By turning said devices, the device is switched to pull and push operation and always the same free piston surface is brought into the working position.

Durch diese Konstruktion ist gewährleistet, daß die Vorrichtung sowohl im Druck- als auch im Zugbetrieb mit maximalen und identischen Kräfteverhältnissen arbeitet.This construction ensures that the device works with maximum and identical force ratios in both the push and pull mode.

Die Vorrichtung ist leicht zerlegbar und kann im Betrieb so an den Schienensträngen angeordnet werden, daß erforderlichenfalls auch ein Notzugbetrieb erfolgen kann, was im Rahmen von Reparaturarbeiten vorteilhaft ist.The device can be easily dismantled and can be arranged on the rail tracks during operation so that emergency train operation can also take place if necessary, which is advantageous in the context of repair work.

Anhand der Zeichnungen wird der Aufbau und die Funktionsweise der erfindungsgemäßen Vorrichtung wie folgt beschrieben:
Es zeigen

Figur 1
eine perspektivische Darstellung der Vorrichtung, zeigend den Zugbetrieb, also das Zusammenziehen der Schienenenden
Figur 2
den Druckbetrieb, zeigend das Auseinanderdrücken der Schienenenden
Figur 3
vergrößert das Ende eines Gelenkhebels mit darauf angebrachtem Anlageschuh.
The structure and the mode of operation of the device according to the invention are described as follows on the basis of the drawings:
Show it
Figure 1
a perspective view of the device, showing the train operation, that is, the contraction of the rail ends
Figure 2
the printing operation, showing the pushing apart of the rail ends
Figure 3
enlarges the end of an articulated lever with an attached shoe.

Die Vorrichtung nach Figuren 1, 2 und 3 weist zwei Traversen 5 und 6 auf, welche unter den Schienensträngen 43 und 44 hindurchgeführt sind. Sie weisen profilgerechte Anpaßstücke 27 für den Fuß der Schienen 43 und 44 auf. An den äußeren Enden der Traversen ragen vertikal nach oben Lagerzapfen 7, 8, 9 und 10, auf welche Gelenkhebel 1, 2, 3 und 4 aufsteckbar sind.The device according to FIGS. 1, 2 and 3 has two cross members 5 and 6, which are passed under the rail tracks 43 and 44. They have profile-matching adapters 27 for the base of the rails 43 and 44. At the outer ends of the crossbeams, journals 7, 8, 9 and 10 project vertically upwards, onto which articulated levers 1, 2, 3 and 4 can be attached.

An den zum Schienensteg 55 zugewandten Enden weisen die Gelenkhebel 1, 2, 3 und 4 Anlageschuhe 1a, 2a, 3a und 4a auf. Diese bestehen aus einem Verschleißmaterial, welches sich besonders gut für die Haftung am Schienensteg eignet. Sie weisen Profilierungen 45 auf, welche die Haftung erhöhen. Die Schrauben 46 sind für die lösbare Befestigung der Anlageschuhe vorgesehen.At the ends facing the rail web 55, the articulated levers 1, 2, 3 and 4 have contact shoes 1a, 2a, 3a and 4a. These consist of a wear material that is particularly well suited for adhesion to the rail web. They have profiles 45, which increase liability. The screws 46 are provided for the detachable attachment of the system shoes.

In die den Schienen 43, 44 abgekehrten Enden der Gelenkhebel 1, 2, 3 und 4 greifen vertikale, lösbare Gelenkbolzen 15, 16, 17 und 18. Die lösbaren Bolzen 15 und 16 sind in Kulissenführungen 19 und 20 von zwei Führungskäfigen 51 und 52 längs der Schiene 43 geführt. Dabei sind die auswärts liegenden Enden 1b, 2b der Gelenkhebel 1 und 2 in Kulissenführungen 53 und 54 der Führungskäfige 51 und 52 längsgeführt. An den Führungskäfigen 51 und 52 sind hydraulische Druckzylinder 23 und 24 befestigt; diese weisen innenliegende Kolben mit Kolbenflächen 41 auf, welche sich nach außen über Kolbenstangen 25 und 26 mit endseitigen Druckpilzen 25', 26' fortsetzen. Die Druckpilze 25' und 26' wirken auf die außenliegenden 1b-, 2b-Enden der Gelenkhebel 1 und 2 ein.Vertical, releasable hinge pins 15, 16, 17 and 18 engage in the ends of the articulated levers 1, 2, 3 and 4 facing away from the rails 43. The releasable pins 15 and 16 are in longitudinal guides 19 and 20 of two guide cages 51 and 52 the rail 43 out. The outward ends 1b, 2b of the articulated levers 1 and 2 are longitudinally guided in link guides 53 and 54 of the guide cages 51 and 52. Hydraulic pressure cylinders 23 and 24 are on the guide cages 51 and 52 attached; these have internal pistons with piston surfaces 41, which extend outwards via piston rods 25 and 26 with pressure mushrooms 25 ', 26' on the end. The pressure mushrooms 25 'and 26' act on the outer 1b, 2b ends of the articulated levers 1 and 2.

Die Führungskäfige 51 und 52 weisen Befestigungsaugen 37 und 39 auf, welche im Zugbetrieb über Gelenkbolzen 34 mit Gelenkgabeln 32 und 33 von Zug- bzw. Druckstangen 30 und 31 zusammenwirken, welche wiederum über Gelenkgabeln 21 und 22 an den außenliegenden Enden 3b, 4b der Gelenkhebel 3 und 4 angelenkt sind.The guide cages 51 and 52 have fastening eyes 37 and 39, which cooperate in the pulling operation via articulated bolts 34 with articulated forks 32 and 33 of pull or push rods 30 and 31, which in turn via articulated forks 21 and 22 at the outer ends 3b, 4b of the articulated levers 3 and 4 are articulated.

Für den Druckbetrieb gemäß Figur 2 (Auseinanderdrücken der Schienen 43, 44) weisen die hydraulischen Druckzylinder 23 und 24 an ihren Enden Befestigungsaugen 38 und 40 auf, welche dadurch, gegen Ausknicken gesichert, in die Taschen 32' und 33' der Gelenkgabeln 32 und 33 der nun als Druckstangen fungierenden Stangen 30 und 31 zusammenwirken. Die Hydraulik-Druckzylinder 23 und 24 sind über Leitungen 35 und 36 mit einer Hydraulikpumpe 42 verbunden.For the printing operation according to FIG. 2 (pushing apart the rails 43, 44), the hydraulic pressure cylinders 23 and 24 have fastening eyes 38 and 40 at their ends, which thereby, secured against buckling, into the pockets 32 'and 33' of the articulated forks 32 and 33 the rods 30 and 31 now acting as push rods interact. The hydraulic pressure cylinders 23 and 24 are connected to a hydraulic pump 42 via lines 35 and 36.

Für den Zugbetrieb (Zusammenziehen der Schienen 43, 44) nach Figur 1 sind die den Schienen 43, 44 zugewandten inneren Enden 1c, 2c, 3c, 4c der Gelenkhebel 1, 2, 3 und 4 auf die Schienenstoßfuge 50 hin ausgerichtet. Je zwei Gelenkhebel (1 und 2 bzw. 3 und 4) bilden bei Zugbetrieb ein Kräftedreieck, dessen Spitze durch die am Schienensteg 55 selbsthemmend angreifenden Anlageschuhe 1a, 2a bzw. 3a, 4a definiert ist.For train operation (pulling together the rails 43, 44) according to FIG. 1, the inner ends 1c, 2c, 3c, 4c of the articulated levers 1, 2, 3 and 4 facing the rails 43, 44 are aligned with the rail joint 50. Two articulated levers (1 and 2 or 3 and 4) form a triangle of forces during train operation, the tip of which is defined by the contact shoes 1a, 2a or 3a, 4a, which engage the rail web 55 in a self-locking manner.

Die aktive hydraulische Einheit 23, 24 samt Führungskäfigen 51, 52 ist bei 34 mit den auf Zug belasteten Stangen 30 und 31 verbunden.The active hydraulic unit 23, 24 including guide cages 51, 52 is connected at 34 to the rods 30 and 31 which are subjected to tension.

Um die Vorrichtung auf Druckbetrieb (Auseinanderdrücken der Schienen 43, 44) nach Figur 2 umzustellen, bedarf es lediglich der temporären Entfernung der Gelenkbolzen 34, worauf die gesamte Einheit, bestehend aus Druckzylindern 24 und 25, Führungskäfigen 51, 52, Traverse 5 und Gelenkhebel 1 und 2, um 180° gewendet wird und die Gelenkaugen 38 und 40 der Zylinder 23, 24 in die Gelenkgabeln 32 und 33 der nun als Druckstangen wirksamen Stangen 31, 32 verbracht und dort wieder mit den Gelenkbolzen 34 verbunden werden. Dabei kommen die geraden Augen-Endflächen 38', 40', gegen Ausknicken gesichert, mit den geraden Taschenflächen 32', 33' der Gelenkgabeln 32, 33 in Anlage. Ferner werden die Gelenkhebel 3 und 4 mit ihren Lagern 13, 14 temporär von den Zapfen 9, 10 abgezogen, gewendet um 180° und wieder aufgesteckt. Dabei sind die an den Schienenstegen 55 angreifenden Enden 3c, 4c bzw. 1c, 2c der Gelenkhebel 3, 4 bzw. 1, 2 in ihrer Pfeilung vom Schienenstoß 50 weggerichtet.In order to convert the device to pressure operation (pushing the rails 43, 44 apart) according to FIG. 2, only the temporary removal of the hinge pins 34 is required, whereupon the entire unit, consisting of pressure cylinders 24 and 25, guide cages 51, 52, cross member 5 and articulated lever 1 and 2, is turned through 180 ° and the articulated eyes 38 and 40 of the cylinders 23, 24 in the articulated forks 32 and 33 of the now as Push rods effective rods 31, 32 are brought there and connected again with the hinge pin 34. The straight eye end surfaces 38 ', 40', secured against buckling, come into contact with the straight pocket surfaces 32 ', 33' of the joint forks 32, 33. Furthermore, the articulated levers 3 and 4 with their bearings 13, 14 are temporarily withdrawn from the pins 9, 10, turned through 180 ° and put back on. The ends 3c, 4c and 1c, 2c of the articulated levers 3, 4 and 1, 2 engaging the rail webs 55 are directed away from the rail joint 50 in their arrowing.

Statt, wie beschrieben, die ganze (rechte) Hydraulik- und Führungs-Einheit um 180° zu wenden, kann man aber auch jede Zylinder- und Führungs-Einheit 23/51 bzw. 24/52 für sich wenden, wie das in Figur 2 dargestellt ist. Zusätzlich bedarf es hierzu lediglich noch des temporären Lösens der Bolzen 15 und 16, des Umsteckens der Gelenkhebel 1 und 2 durch Abheben ihrer Lager 11 und 13 von den Zapfen 7 und 8 der Traverse 5 und deren Wendung um 180°.Instead of turning the entire (right) hydraulic and guide unit by 180 °, as described, it is also possible to turn each cylinder and guide unit 23/51 or 24/52 individually, as shown in FIG. 2 is shown. In addition, all that is required is the temporary loosening of the bolts 15 and 16, the repositioning of the articulated levers 1 and 2 by lifting their bearings 11 and 13 from the pins 7 and 8 of the cross member 5 and turning them 180 °.

Sowohl im Zugbetrieb nach Figur 1 als auch im Druckbetrieb nach Figur 2 wird über die Zulauf-Druckleitung 35 die volle Zylinderfläche 41 beaufschlagt, so daß maximale und konstante Kräfteverhältnisse in beiden Betriebsarten möglich sind. Die Rücklaufleitung ist mit 36 angegeben.Both in the train operation according to FIG. 1 and in the pressure operation according to FIG. 2, the full cylinder surface 41 is acted upon via the inlet pressure line 35, so that maximum and constant force relationships are possible in both operating modes. The return line is indicated at 36.

Zur Limitierung bzw. Einstellung der Stellbewegung der hydraulischen Druckzylinder 23 und 24 ist ein einstellbarer Begrenzungsanschlag 28 vorgesehen, welcher zum einen an den lösbaren Bolzen 15 und 16 an den Gelenkhebeln 1 und 2 und zum anderen über einen Ring 29 an den hydraulischen Zylindern 23 und 24 festgelegt ist.To limit or adjust the actuating movement of the hydraulic pressure cylinders 23 and 24, an adjustable limit stop 28 is provided, which on the one hand on the detachable bolts 15 and 16 on the articulated levers 1 and 2 and on the other hand via a ring 29 on the hydraulic cylinders 23 and 24 is set.

Die Vorrichtung eignet sich zum schnellen und einfachen Umsetzen von Zug- und Druckbetrieb und umgekehrt. Durch den Begrenzungsanschlag 28 kann sie genau nach den jeweiligen Temperaturverhältnissen arbeiten. Durch die Druckpumpe 42, welche auch von Hand betrieben werden kann, arbeitet die Vorrichtung ohne Fremdenergie, so daß sie an beliebigen Punkten des Streckennetzes eingesetzt werden kann.The device is suitable for quick and easy implementation of push and pull operations and vice versa. Due to the limit stop 28, it can work exactly according to the respective temperature conditions. By means of the pressure pump 42, which can also be operated by hand, the device operates without external energy, so that it can be used at any point in the route network.

Da sich sämtliche Bauteile der Vorrichtung neben und unter den Schienensträngen 43 und 44 befinden, kann - vorausgesetzt der Schienenstoß 50 ist nicht zu groß oder wird temporär bei den Arbeiten überbrückt - der Zugbetrieb gegebenenfalls weiterlaufen.Since all components of the device are located next to and below the rail tracks 43 and 44, the train operation can continue - if the rail joint 50 is not too large or is temporarily bridged during the work.

Die Erfindung beschränkt sich nicht auf das dargestellte Ausführungsbeispiel. So können die Zug- bzw. Druckstangen 30 und 31 und deren Verbindung mit den angrenzenden Teilen auch anders ausgeführt sein, d.h. zum Beispiel stabiler, und weitere Einrichtungen gegen Ausknicken bei höheren Druckkräften aufweisen.The invention is not limited to the illustrated embodiment. Thus, the pull or push rods 30 and 31 and their connection to the adjacent parts can also be designed differently, i.e. for example, more stable, and have additional devices against buckling at higher pressure forces.

Claims (14)

Hydraulische Druck- und Ziehvorrichtung, insbesondere für Eisenbahnschienen, dadurch gekennzeichnet, daß sie mindestens einen hydraulischen Zylinder aufweist, welcher durch Wenden in Zug- bzw. in Druckposition und umgekehrt bringbar ist, wobei seine freie Kolbenfläche (41) in jedem der beiden Betriebszustände durch das hydraulische Medium beaufschlagt wird.Hydraulic pushing and pulling device, in particular for railroad tracks, characterized in that it has at least one hydraulic cylinder which can be brought into the pulling or pushing position and vice versa by turning, its free piston surface (41) in each of the two operating states by the hydraulic medium is applied. Hydraulische Druck- und Ziehvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der bzw. die hydraulischen Zylinder kolbenstangenseitig ein Paar von Gelenkhebeln (1, 2) aufweisen, welche am Schienenstrang (43) kraftschlüssig angreifen und zylinderseitig über Führungskäfige (51, 52) und Zug- bzw. Druckstangen (30, 31) Gelenkhebel (3, 4) aufweisen, welche kraftschlüssig am Schienenstrang (44) angreifen.Hydraulic pressure and drawing device according to claim 1, characterized in that the hydraulic cylinder or cylinders have a pair of articulated levers (1, 2) on the piston rod side, which engage the rail track (43) in a force-locking manner and on the cylinder side via guide cages (51, 52) and tension - or push rods (30, 31) have articulated levers (3, 4) which engage in a force-locking manner on the rail track (44). Hydraulische Druck- und Ziehvorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Gelenkhebelpaare (1, 2 bzw. 3, 4) durch temporäres Entfernen von Zapfen (7, 8 bzw. 9, 10) um 180° zur Erzielung der Betriebszustände, Zug- bzw. Druckbetrieb, wendbar sind.Hydraulic pressure and pulling device according to claim 1 and 2, characterized in that the articulated lever pairs (1, 2 or 3, 4) by temporary removal of pins (7, 8 or 9, 10) by 180 ° to achieve the operating states, Train or push operation, are reversible. Hydraulische Druck- und Ziehvorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die kolbenstangenseitigen Gelenkhebel (1, 2) über lösbare Bolzen (15, 16) in Kulissenführungen (19, 20) von Führungskäfigen (51, 52) um 180° wendbar längsgeführt sind.Hydraulic pushing and pulling device according to claims 1 to 3, characterized in that the articulated levers (1, 2) on the piston rod side are guided longitudinally reversible by 180 ° via releasable bolts (15, 16) in link guides (19, 20) of guide cages (51, 52) are. Hydraulische Druck- und Ziehvorrichtung nach Anpruch 1 und 2, dadurch gekennzeichnet, daß die Hydraulikzylinder durch temporäres Entfernen der Gelenkbolzen (34) um 180° wendbar sind.Hydraulic pressure and pulling device according to claims 1 and 2, characterized in that the hydraulic cylinders can be turned through 180 ° by temporarily removing the hinge pin (34). Hydraulische Druck- und Ziehvorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Augen (38, 40) am Zylinder (23, 24) Abflachungen (38', 40') aufweisen, welche formschlüssig, und damit gegen Ausknicken sichernd, mit den Taschen (32', 33') der Gelenkgabeln (32, 33) der Zug- bzw. Druckstangen (30, 31) zusammenwirken.Hydraulic pressure and drawing device according to claim 1 and 2, characterized in that the eyes (38, 40) on the cylinder (23, 24) have flats (38 ', 40') which form-fit, and thus prevent buckling, with the Pockets (32 ', 33') of the articulated forks (32, 33) of the pull or push rods (30, 31) interact. Hydraulische Druck- und Ziehvorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Kolbenstangen (25, 26) der Zylinder (23, 24) als Druckpilze (25', 26') ausgebildet sind, welche auf die außenliegenden Enden (1b, 2b) der Gelenkhebel (1, 2) einwirken.Hydraulic pressure and pulling device according to claims 1 to 3, characterized in that the piston rods (25, 26) of the cylinders (23, 24) are designed as pressure mushrooms (25 ', 26') which act on the outer ends (1b, 2b ) the articulated lever (1, 2) act. Hydraulische Druck- und Ziehvorrichtung nach Anspruch 2 bis 4, dadurch gekennzeichnet, daß die Gelenkhebel (1, 2 bzw. 3, 4) durch unter den Schienen hindurchgeführte Traversen (5, 6) zu je einem Paar über Zapfen (7, 8 bzw. 9, 10) schwenkbar zusammengehalten sind.Hydraulic pushing and pulling device according to claims 2 to 4, characterized in that the articulated levers (1, 2 or 3, 4) by means of cross members (5, 6) passed under the rails, each in pairs via pins (7, 8 or 9, 10) are pivotally held together. Hydraulische Druck- und Ziehvorrichtung nach Anspruch 2 bis 4, dadurch gekennzeichnet, daß die Gelenkhebel (1, 2, 3, 4) auswechselbare Anlageschuhe (1a, 2a, 3a, 4a) aufweisen, welche vertiefte Profilierungen (45) zur Aufnahme von Verunreinigungen aufweisen.Hydraulic pressure and pulling device according to claims 2 to 4, characterized in that the articulated levers (1, 2, 3, 4) have interchangeable contact shoes (1a, 2a, 3a, 4a) which have recessed profiles (45) for taking up impurities . Hydraulische Druck- und Ziehvorrichtung nach Anspruch 8 und 9, dadurch gekennzeichnet, daß die Traversen (5, 6) profilgerechte Anpaßstücke (27) für die Schienenfüße aufweisen.Hydraulic pressure and drawing device according to claim 8 and 9, characterized in that the cross members (5, 6) have profile-matching adapters (27) for the rail feet. Hydraulische Druck- und Ziehvorrichtung nach Anspruch 2 bis 4, dadurch gekennzeichnet, daß zwischen den Hydraulikzylindern (23, 24) und den Enden (1b, 2b) der Gelenkhebel (1, 2) eine einstellbare Überwachungseinrichtung (28) vorgesehen ist, mit welcher der Zieh- bzw. Druckweg einstellbar bzw. überwachbar bzw. begrenzbar ist.Hydraulic pressure and drawing device according to claims 2 to 4, characterized in that an adjustable monitoring device (28) is provided between the hydraulic cylinders (23, 24) and the ends (1b, 2b) of the articulated lever (1, 2), with which the Draw or pressure path is adjustable or can be monitored or limited. Hydraulische Druck- und Ziehvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Augen (1b, 2b) der Gelenkhebel (1, 2) in Kulissenführungen (53, 54) längs der Schienen geführt sind.Hydraulic pressure and drawing device according to claim 2, characterized in that the eyes (1b, 2b) of the articulated levers (1, 2) are guided along the rails in link guides (53, 54). Hydraulische Druck- und Ziehvorrichtung nach Anspruch 1 bis 12, dadurch gekennzeichnet, daß eine hydraulische Druckpumpe (42) an den Zu- und Abfuhrleitungen (35, 36) angeschlossen wird, welche mit Manometern, Thermometern und Arbeitsskalen ausgerüstet ist.Hydraulic pressure and drawing device according to claim 1 to 12, characterized in that a hydraulic pressure pump (42) is connected to the supply and discharge lines (35, 36), which is equipped with pressure gauges, thermometers and working scales. Hydraulische Druck- und Ziehvorrichtung nach Anspruch 1 bis 13, dadurch gekennzeichnet, daß ein Mikrocomputer vorgesehen ist, welcher über Eingabe der augenblicklichen Umweltdaten, Schienentemperaturen und Anlagedaten des Gleis- und Gleisbausystems die erforderlichen Stellwege der Hydraulikzylinder meldet bzw. steuert.Hydraulic pressure and drawing device according to claim 1 to 13, characterized in that a microcomputer is provided which reports or controls the required travel of the hydraulic cylinders by entering the current environmental data, rail temperatures and system data of the track and track construction system.
EP93105903A 1992-04-23 1993-04-10 Hydraulic push and pull device, especially for railway rails Expired - Lifetime EP0566941B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4213288 1992-04-23
DE4213288A DE4213288C2 (en) 1992-04-23 1992-04-23 Hydraulic push and pull device, in particular for railroad tracks

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EP0566941A1 true EP0566941A1 (en) 1993-10-27
EP0566941B1 EP0566941B1 (en) 1996-07-24

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EP (1) EP0566941B1 (en)
DE (2) DE4213288C2 (en)
FI (1) FI931825A (en)
PL (1) PL170928B1 (en)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
US6637727B1 (en) * 2002-04-22 2003-10-28 Templeton, Kenly & Co. Rail puller including a clamping beam and two clamping members and a method thereof
FR2998310A1 (en) * 2012-11-16 2014-05-23 Anciens Etablissements Lucien Geismar Soc D ASSEMBLY FOR A CLAMPING DEVICE OF A RAIL TENSIONER
WO2016050337A1 (en) * 2014-10-01 2016-04-07 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Welding unit
EP3138959A1 (en) * 2015-09-05 2017-03-08 Robel Bahnbaumaschinen GmbH Rail pulling device
WO2019007599A1 (en) * 2017-07-04 2019-01-10 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Apparatus for welding a rail joint of a track

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6637727B1 (en) * 2002-04-22 2003-10-28 Templeton, Kenly & Co. Rail puller including a clamping beam and two clamping members and a method thereof
FR2998310A1 (en) * 2012-11-16 2014-05-23 Anciens Etablissements Lucien Geismar Soc D ASSEMBLY FOR A CLAMPING DEVICE OF A RAIL TENSIONER
AU2015327393B2 (en) * 2014-10-01 2019-11-21 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Welding unit
WO2016050337A1 (en) * 2014-10-01 2016-04-07 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Welding unit
CN107109806A (en) * 2014-10-01 2017-08-29 普拉塞-陶伊尔铁路机械出口股份有限公司 Weld assembly
US10570573B2 (en) 2014-10-01 2020-02-25 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Rail welding unit with eccentric cam driven clamping levers
EA031641B1 (en) * 2014-10-01 2019-01-31 Плассер Энд Тойрер Экспорт Фон Банбаумашинен Гезельшафт М.Б.Х. Welding unit
CN107109806B (en) * 2014-10-01 2019-08-02 普拉塞-陶伊尔铁路机械出口股份有限公司 Weld assembly
EP3138959A1 (en) * 2015-09-05 2017-03-08 Robel Bahnbaumaschinen GmbH Rail pulling device
CN110709560A (en) * 2017-07-04 2020-01-17 普拉塞-陶依尔铁路出口股份有限公司 Device for welding rail joints of a track
WO2019007599A1 (en) * 2017-07-04 2019-01-10 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Apparatus for welding a rail joint of a track
CN110709560B (en) * 2017-07-04 2021-10-22 普拉塞-陶依尔铁路出口股份有限公司 Device for welding rail joints of a track
US11613853B2 (en) 2017-07-04 2023-03-28 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Device for welding a rail joint of a track

Also Published As

Publication number Publication date
DE59303293D1 (en) 1996-08-29
DE4213288C2 (en) 1996-02-22
FI931825A (en) 1993-10-24
EP0566941B1 (en) 1996-07-24
PL298657A1 (en) 1993-11-29
DE4213288A1 (en) 1993-11-04
PL170928B1 (en) 1997-02-28
FI931825A0 (en) 1993-04-22

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