EP1653003A2 - Method of tamping sleepers - Google Patents

Method of tamping sleepers Download PDF

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Publication number
EP1653003A2
EP1653003A2 EP05107174A EP05107174A EP1653003A2 EP 1653003 A2 EP1653003 A2 EP 1653003A2 EP 05107174 A EP05107174 A EP 05107174A EP 05107174 A EP05107174 A EP 05107174A EP 1653003 A2 EP1653003 A2 EP 1653003A2
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EP
European Patent Office
Prior art keywords
tamping
vibration
sequence
ballast
picks
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.)
Withdrawn
Application number
EP05107174A
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German (de)
French (fr)
Other versions
EP1653003A3 (en
Inventor
Josef Theurer
Bernhard Lichtberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Franz Plasser Bahnbaumaschinen Industrie GmbH
Original Assignee
Franz Plasser Bahnbaumaschinen Industrie GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Franz Plasser Bahnbaumaschinen Industrie GmbH filed Critical Franz Plasser Bahnbaumaschinen Industrie GmbH
Publication of EP1653003A2 publication Critical patent/EP1653003A2/en
Publication of EP1653003A3 publication Critical patent/EP1653003A3/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines

Definitions

  • the invention relates to a method for undercutting sleepers of a track according to the features cited in the preamble of claim 1.
  • Stopfaggregate to Unterstopfen thresholds of a track are already widely known, such.
  • the vibrations acting on the tamping picks can be generated either by an eccentric shaft or by hydraulic pulses in a linear drive, which at the same time also the Beistellioloen the stuffing tine performs.
  • the object of the present invention is now to provide a method of the generic type with which a deployment optimization of a tamping unit can be achieved.
  • the vibration of the stuffing tamp is reduced to their actual work, whereby the resulting from the vibration adverse effects on the Stopfaggregat or on the environment in the form of noise compared to the previous continuous vibration can be reduced by about two-thirds. Even in the work cabin on the operator adversely acting vibrations are significantly reduced.
  • Stopfaggregat 1 has two each connected to a tamping 2, acting as a lever stuffing tools 3, which are spaced apart in a normal to a threshold 4 extending machine longitudinal direction 5 from each other.
  • the stuffing tools 3 are mounted pivotably about a pivot axis 6 on a tool carrier 7 and in each case connected to a hydraulic auxiliary drive 8. This is articulated in each case via an articulation point 9 on the tool carrier 7, which is height-adjustable by drives 10 relative to a machine frame 11 of a tamping machine 12 (FIG. This can be moved by a traction drive 13 on a track 14.
  • the effective as a linear drive Beistellantriebe 8 are designed such that this not only a linear Beistellterrorism 15, but at the same time - in a (eg by AT 339 358, EP 0 331 956 or US 4 068 595) known manner - for the tamping 2 required vibration - with a schematically indicated vibratory drive 18 - generate.
  • the Beistellantriebe 8 equipped with Wegaufillonn 16 are controlled by corresponding servo valves of a hydraulic system, not shown.
  • the additional speed, the vibration amplitude, its shape and the frequency can be specified.
  • Fig. 3 the raised state of the tamping pick 2 is shown with a line a, in which they are above the threshold 4 and 12 are freely movable in the machine longitudinal direction 5 by right of way of the tamping machine.
  • a line located underneath b the lowest position of the tamping pick 2 is shown, in which the Beistellterrorism 15, the compression of below the threshold 4 befindlichem gravel 17 is performed.
  • a lowest line t shows the time required for the stuffing process and a vibration frequency f.
  • a stuffing cycle sz begins with a lowering movement of the tamping pick 2 from A to B by activating the drive 10 and lowering the tamping unit 1. Subsequently, the Beistellterrorism 15 (from B to C) of the two submerged tamping 2 to each other by activating the two Beistellantriebe 8 to thus compacting the gravel 17 therebetween. After the ballast compaction takes place a lifting of the stuffing tine 2 (from C to D) and a right of way of Stopfaggregates 1 to the next threshold 4 (from D to E). Thus, the tamping cycle sz required for the suppression of a threshold 4 is completed.
  • each stuffing cycle sz is composed of a vibration sequence x lasting from A to C and a vibration-free sequence y lasting from C to E.
  • the amplitude of the oscillating tamping pick 2 can be predetermined by the electronic control of the vibration drive 18. Consequently, the amplitude can also be easily adapted to the prevailing conditions of use (eg higher compression amplitude with loose ballast bedding).
  • the shape of the amplitude can also be influenced. For example, the forward motion of the plug 2 during an amplitude could be slower than the backward motion (sawtooth amplitude).
  • the additional speed can also be adapted to the conditions of use.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The method involves providing a vibration sequence (x) in the start of the plugging cycle (z) of a plugging pick. In such sequence, the pick is vibrated while stuffing and compressing ballast into the threshold of the railway track.

Description

Die Erfindung betrifft ein Verfahren zum Unterstopfen von Schwellen eines Gleises gemäß den im Oberbegriff von Anspruch 1 angeführten Merkmalen.The invention relates to a method for undercutting sleepers of a track according to the features cited in the preamble of claim 1.

Stopfaggregate zum Unterstopfen von Schwellen eines Gleises sind bereits vielfach bekannt, wie z. B. durch US 4 240 352, AT 339 358, EP 0 331 956 oder US 4 068 595. Die auf die Stopfpickel einwirkenden Vibrationen können entweder durch eine Exzenterwelle oder durch hydraulische Impulse in einem Linearantrieb erzeugt werden, der gleichzeitig auch die Beistellbewegungen der Stopfpickel ausführt.Stopfaggregate to Unterstopfen thresholds of a track are already widely known, such. For example, by US 4,240,352, AT 339,358, EP 0 331 956 or US 4 068 595. The vibrations acting on the tamping picks can be generated either by an eccentric shaft or by hydraulic pulses in a linear drive, which at the same time also the Beistellbewegungen the stuffing tine performs.

Die Aufgabe der vorliegenden Erfindung liegt nun in der Schaffung eines Verfahrens der gattungsgemäßen Art, mit dem eine Einsatzoptimierung eines Stopfaggregates erzielbar ist.The object of the present invention is now to provide a method of the generic type with which a deployment optimization of a tamping unit can be achieved.

Erfindungsgemäß wird diese Aufgabe mit einem Verfahren der eingangs genannten Art durch die im Kennzeichen von Anspruch 1 angeführten Merkmale gelöst.According to the invention this object is achieved by a method of the type mentioned by the features cited in the characterizing part of claim 1.

Durch dieses Verfahren wird die Vibration der Stopfpickel auf deren eigentlichen Arbeitseinsatz reduziert, wodurch die aus der Vibration resultierenden nachteiligen Auswirkungen auf das Stopfaggregat bzw. auch auf die Umwelt in Form von Lärm im Vergleich zu der bisherigen Dauervibration um etwa zwei Drittel reduzierbar sind. Auch die in der Arbeitskabine auf die Bedienungsperson nachteilig einwirkenden Schwingungen werden erheblich reduziert.By this method, the vibration of the stuffing tamp is reduced to their actual work, whereby the resulting from the vibration adverse effects on the Stopfaggregat or on the environment in the form of noise compared to the previous continuous vibration can be reduced by about two-thirds. Even in the work cabin on the operator adversely acting vibrations are significantly reduced.

Weitere Vorteile und Ausbildungen der Erfindung ergeben sich aus den weiteren Ansprüchen und der Zeichnung.Further advantages and embodiments of the invention will become apparent from the other claims and the drawings.

Im folgenden wird die Erfindung anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher beschrieben.In the following the invention will be described in more detail with reference to embodiments shown in the drawing.

Es zeigen:

  • Fig. 1 und 2 eine Ansicht einer Stopfmaschine bzw. eines Stopfaggregates,
  • Fig. 3 eine Darstellung der Absenkbewegungen der Stopfpickel und parallel dazu die einzelnen Vibrationssequenzen.
Show it:
  • 1 and 2 is a view of a tamping machine or a tamping unit,
  • Fig. 3 is a representation of the lowering movements of the tamping pick and parallel to the individual vibration sequences.

Ein in Fig. 1 und 2 dargestelltes Stopfaggregat 1 weist zwei je mit einem Stopfpickel 2 verbundene, als Hebel wirksame Stopfwerkzeuge 3 auf, die in einer normal zu einer Schwelle 4 verlaufenden Maschinenlängsrichtung 5 voneinander distanziert sind. Die Stopfwerkzeuge 3 sind um eine Schwenkachse 6 verschwenkbar auf einem Werkzeugträger 7 gelagert und jeweils mit einem hydraulischen Beistellantrieb 8 verbunden. Dieser ist jeweils über eine Anlenkstelle 9 am Werkzeugträger 7 angelenkt, der durch Antriebe 10 relativ zu einem Maschinenrahmen 11 einer Stopfmaschine 12 (Fig. 1) höhenverstellbar ist. Diese ist durch einen Fahrantrieb 13 auf einem Gleis 14 verfahrbar.An illustrated in Fig. 1 and 2 Stopfaggregat 1 has two each connected to a tamping 2, acting as a lever stuffing tools 3, which are spaced apart in a normal to a threshold 4 extending machine longitudinal direction 5 from each other. The stuffing tools 3 are mounted pivotably about a pivot axis 6 on a tool carrier 7 and in each case connected to a hydraulic auxiliary drive 8. This is articulated in each case via an articulation point 9 on the tool carrier 7, which is height-adjustable by drives 10 relative to a machine frame 11 of a tamping machine 12 (FIG. This can be moved by a traction drive 13 on a track 14.

Die als Linearantrieb wirksamen Beistellantriebe 8 sind derart ausgeführt, dass diese nicht nur eine lineare Beistellbewegung 15, sondern gleichzeitig auch - in einer (z.B. durch AT 339 358, EP 0 331 956 oder US 4 068 595) bekannten Weise - die für die Stopfpickel 2 erforderliche Vibration - mit einem schematisch angedeuteten Vibrationsantrieb 18 - erzeugen. Dazu werden die mit Wegaufnehmern 16 ausgestatteten Beistellantriebe 8 durch entsprechende Servoventile einer nicht näher dargestellten Hydraulikanlage angesteuert. Dadurch kann die Beistellgeschwindigkeit, die Schwingungsamplitude, deren Form und die Frequenz vorgegeben werden.The effective as a linear drive Beistellantriebe 8 are designed such that this not only a linear Beistellbewegung 15, but at the same time - in a (eg by AT 339 358, EP 0 331 956 or US 4 068 595) known manner - for the tamping 2 required vibration - with a schematically indicated vibratory drive 18 - generate. For this purpose, the Beistellantriebe 8 equipped with Wegaufnehmern 16 are controlled by corresponding servo valves of a hydraulic system, not shown. As a result, the additional speed, the vibration amplitude, its shape and the frequency can be specified.

In Fig. 3 ist mit einer Linie a der angehobene Zustand der Stopfpickel 2 dargestellt, in dem sich diese oberhalb der Schwelle 4 befinden und durch Vorfahrt der Stopfmaschine 12 ungehindert in Maschinenlängsrichtung 5 bewegbar sind. Durch eine darunter befindliche Linie b ist die unterste Position der Stopfpickel 2 dargestellt, in der mit der Beistellbewegung 15 die Verdichtung von unterhalb der Schwelle 4 befindlichem Schotter 17 durchgeführt wird. Eine unterste Linie t zeigt die für den Stopfvorgang benötigte Zeit sowie eine Vibrationsfrequenz f.In Fig. 3, the raised state of the tamping pick 2 is shown with a line a, in which they are above the threshold 4 and 12 are freely movable in the machine longitudinal direction 5 by right of way of the tamping machine. By a line located underneath b the lowest position of the tamping pick 2 is shown, in which the Beistellbewegung 15, the compression of below the threshold 4 befindlichem gravel 17 is performed. A lowest line t shows the time required for the stuffing process and a vibration frequency f.

Ein Stopfzyklus sz beginnt mit einer Absenkbewegung der Stopfpickel 2 von A nach B durch Aktivierung des Antriebes 10 und Absenkung des Stopfaggregates 1. Anschließend erfolgt durch Aktivierung der beiden Beistellantriebe 8 die Beistellbewegung 15 (von B nach C) der beiden eingetauchten Stopfpickel 2 zueinander, um damit den dazwischen befindlichen Schotter 17 zu verdichten. Nach der Schotterverdichtung erfolgt ein Anheben der Stopfpickel 2 (von C nach D) und eine Vorfahrt des Stopfaggregates 1 zur nächsten Schwelle 4 (von D nach E). Damit ist der zur Unterstopfung einer Schwelle 4 erforderliche Stopfzyklus sz beendet.A stuffing cycle sz begins with a lowering movement of the tamping pick 2 from A to B by activating the drive 10 and lowering the tamping unit 1. Subsequently, the Beistellbewegung 15 (from B to C) of the two submerged tamping 2 to each other by activating the two Beistellantriebe 8 to thus compacting the gravel 17 therebetween. After the ballast compaction takes place a lifting of the stuffing tine 2 (from C to D) and a right of way of Stopfaggregates 1 to the next threshold 4 (from D to E). Thus, the tamping cycle sz required for the suppression of a threshold 4 is completed.

Parallel dazu wird mit der genannten Absenkbewegung (Punkt A) der Vibrationsantrieb 18 zur Vibration der Stopfpickel 2 aktiviert und mit der Anhebung des Stopfaggregates 1 (Punkt C) automatisch deaktiviert. Damit setzt sich jeder Stopfzyklus sz aus einer von A bis C dauernden Vibrationssequenz x und einer von C bis E dauernden vibrationslosen Sequenz y zusammen.In parallel, the vibration drive 18 is activated with the said lowering movement (point A) to vibrate the tamping pick 2 and automatically deactivated by raising the tamping unit 1 (point C). Thus, each stuffing cycle sz is composed of a vibration sequence x lasting from A to C and a vibration-free sequence y lasting from C to E.

Dies hat zur Folge, dass nunmehr die nachteiligen Auswirkungen der Stopfpickelschwingungen wesentlich reduziert sind und eine deutlich höhere Lebensdauer des Stopfaggregates 1 zu erwarten ist. Außerdem wird weniger Lärm emittiert. Es ist von Vorteil und auch einfach realisierbar, während des Eintauchvorganges (A-B) die Vibrationsfrequenz zu erhöhen (z. B. 60 Hertz) und während des Verdichtvorganges (B-C) auf die bewährte Frequenz von 35 Hertz zu reduzieren. Damit ist besonders bei verkrustetem Schotter ein leichteres Eindringen der Stopfpickel 2 und damit eine erhöhte Stopfleistung sichergestellt.This has the consequence that now the adverse effects of Stopfpickelschwingungen are substantially reduced and a significantly longer life of the Stopfaggregates 1 is expected. In addition, less noise is emitted. It is advantageous and also easily feasible to increase the vibration frequency during the immersion process (A-B) (for example 60 hertz) and to reduce it to the proven frequency of 35 hertz during the compression process (B-C). This is easier, especially with encrusted gravel the tamping 2 and thus ensures increased stuffing capacity.

Die Amplitude der schwingenden Stopfpickel 2 kann durch die elektronische Steuerung des Vibrationsantriebes 18 vorgegeben werden. Folglich kann die Amplitude auch einfach an die vorherrschenden Einsatzbedingungen angepasst werden (z.B. höhere Verdichtamplitude bei lockerer Schotterbettung). Auch die Form der Amplitude kann beeinflusst werden. Zum Beispiel könnte die Vorwärtsbewegung des Stopfpickels 2 während einer Amplitude langsamer sein als die Rückwärtsbewegung (Sägezahnamplitude). Auch die Beistellgeschwindigkeit kann den Einsatzbedingungen angepasst werden.The amplitude of the oscillating tamping pick 2 can be predetermined by the electronic control of the vibration drive 18. Consequently, the amplitude can also be easily adapted to the prevailing conditions of use (eg higher compression amplitude with loose ballast bedding). The shape of the amplitude can also be influenced. For example, the forward motion of the plug 2 during an amplitude could be slower than the backward motion (sawtooth amplitude). The additional speed can also be adapted to the conditions of use.

Claims (5)

Verfahren zum Unterstopfen von Schwellen eines Gleises, wobei auf einem höhenverstellbaren Stopfaggregat (1) gelagerte Stopfpickel (2) durch hydraulische Beistellantriebe (8) in Gleislängsrichtung zueinander beistellbar und durch einen Vibrationsantrieb (18) in Vibrationen versetzbar sind, und das Stopfaggregat (1) in einem - sich für jede Unterstopfung wiederholenden - Stopfzyklus (sz) zum Eintauchen der Stopfpickel (2) in Schotter (17) abgesenkt, nach Verdichtung des Schotters (17) hochgehoben und abschließend zur Unterstopfung der nächsten Schwelle (4) weiterbewegt wird, dadurch gekennzeichnet, dass jeder Stopfzyklus (sz) aus einer Vibrationssequenz (x), bei der die Stopfpickel (2) in Vibrationen versetzt werden, und einer vibrationslosen Sequenz (y), bei der die Stopfpickel (2) vibrationsfrei sind, zusammengesetzt ist.Method for submerging sleepers of a track, wherein on a height adjustable tamping unit (1) mounted tamping picks (2) by hydraulic Beistellantriebe (8) in the longitudinal direction to each other beistellbar and by a vibration drive (18) are set into vibration, and the tamping unit (1) in one - repeated for each Unterstopfung - Stopfzyklus (sz) for immersing the tamping (2) in gravel (17) lowered, lifted after compaction of the ballast (17) and is finally moved to the clogging of the next threshold (4), characterized in that each stuffing cycle (sz) is composed of a vibration sequence (x) in which the tamping picks (2) are vibrated and a vibrationless sequence (y) in which the tamping picks (2) are vibration-free. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in der Vibrationssequenz (x) die Stopfpickel (2) in den Schotter (17) eingetaucht sowie zur Schotterverdichtung zueinander beigestellt werden.Method according to claim 1, characterized in that in the vibration sequence (x) the tamping picks (2) are immersed in the ballast (17) and provided with each other for ballast compaction. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in der vibrationslosen Sequenz (y) die Stopfpickel (2) hochgehoben und zur nächsten Unterstopfung weiterbewegt werden.A method according to claim 1, characterized in that in the vibrationless sequence (y) the tamping picks (2) are lifted and moved on to the next sub-tamping. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Vibrationssequenz (x) aus zwei aufeinander folgenden Abschnitten mit unterschiedlicher Stopffrequenz (f) der Stopfpickel (2) zusammengesetzt ist.A method according to claim 1 or 2, characterized in that the vibration sequence (x) of two successive sections with different stop frequency (f) of the tamping pick (2) is composed. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die Stopfpickel (2) während des Eintauchens in den Schotter (17) mit einer Eintauchfrequenz schwingen, die im Vergleich zur nachfolgenden Beistellfrequenz während der Beistellbewegung der Stopfpickel (2) erhöht ist.A method according to claim 4, characterized in that the tamping pickles (2) during immersion in the ballast (17) oscillate at a dipping frequency, which is increased compared to the subsequent Beistellfrequenz during Beistellbewegung the tamping pickles (2).
EP05107174A 2004-10-29 2005-08-04 Method of tamping sleepers Withdrawn EP1653003A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0181604A AT500972B1 (en) 2004-10-29 2004-10-29 METHOD FOR SUBSTITUTING THRESHOLD

Publications (2)

Publication Number Publication Date
EP1653003A2 true EP1653003A2 (en) 2006-05-03
EP1653003A3 EP1653003A3 (en) 2006-09-06

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EP05107174A Withdrawn EP1653003A3 (en) 2004-10-29 2005-08-04 Method of tamping sleepers

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US (1) US20060090666A1 (en)
EP (1) EP1653003A3 (en)
JP (1) JP2006125188A (en)
KR (1) KR20060049320A (en)
CN (1) CN1766231A (en)
AT (1) AT500972B1 (en)
AU (1) AU2005227382A1 (en)
RU (1) RU2005131295A (en)

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EP2770108A1 (en) * 2013-02-22 2014-08-27 System7-Railsupport GmbH Tamping unit for a rail tamping machine
EP2902546A1 (en) * 2014-01-30 2015-08-05 System7-Railsupport GmbH Device for the compaction of railway ballast
EP3026178A1 (en) * 2014-11-27 2016-06-01 Srt Societa' A Responsabilita' Limitata Con Unico Socio Tamping machine for railway ballast
WO2016100993A1 (en) 2014-12-22 2016-06-30 System 7 - Railsupport GmbH Tamping assembly for a track tamping machine
AT517843B1 (en) * 2015-11-24 2017-05-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Method and tamping unit for submerging a track
WO2017084732A1 (en) * 2015-11-18 2017-05-26 Plasser & Theurer Export Von Bahnbaumaschinen Tamping unit and method for tamping a track
EP3239398A1 (en) 2016-04-29 2017-11-01 HP3 Real GmbH Tamping unit for a rail tamping machine
WO2018095558A1 (en) 2016-11-25 2018-05-31 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Tamping unit for tamping sleepers of a track
DE102018116317A1 (en) 2017-07-11 2019-01-17 Hp3 Real Gmbh Method for compacting a ballast bed of a track
AT520497A1 (en) * 2017-10-03 2019-04-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Track construction machine for compacting crushed stone
AT522237A1 (en) * 2019-03-14 2020-09-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Method for compacting a ballast bed of a track
AT524005A1 (en) * 2020-07-03 2022-01-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Process and machine with a tamping unit
WO2023010147A1 (en) 2021-08-04 2023-02-09 Hp3 Real Gmbh Method for compacting ballast of a trackbed
WO2023016858A1 (en) 2021-08-09 2023-02-16 Plasser & Theurer, Export von Bahnbaumaschinen, Gesellschaft m.b.H. Tamping assembly for tamping a track
IT202100022355A1 (en) * 2021-08-26 2023-02-26 Colmar Technik S P A IMPROVED EQUIPMENT FOR TAMPING IN RAILWAY INFRASTRUCTURE
US11713547B2 (en) 2018-01-22 2023-08-01 Hp3 Real Gmbh Tamping assembly for a track tamping machine
AT18243U1 (en) * 2022-12-30 2024-06-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Tamping unit and method for tamping a group of adjacent sleepers of a track

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AT516547B1 (en) * 2015-02-27 2016-06-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat for clogging thresholds of a track
RU2597258C1 (en) * 2015-05-29 2016-09-10 Алексей Анатольевич Суслов Ballast tamper
AT517345B1 (en) * 2015-06-17 2017-01-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Track construction machine for the implementation of track position corrections
US10125456B2 (en) * 2015-07-10 2018-11-13 Harsco Technologies LLC Workhead assembly for rail applications
CN104975545B (en) * 2015-07-30 2017-04-05 上海铁路局上海大型养路机械运用检修段 Smash stable car tamping pickaxe anti-plug rail protection device and its application process
USD789994S1 (en) 2015-08-05 2017-06-20 Nordco Inc. Tamper tool
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AT518693B1 (en) * 2016-05-24 2020-02-15 Plasser & Theurer Exp Von Bahnbaumaschinen G M B H Test device and method for testing a tamping unit
CA3029171A1 (en) * 2016-07-05 2018-01-11 Harsco Technologies LLC Apparatus and method for tamping ballast
ES2652524B1 (en) * 2016-08-02 2018-09-25 Jose Antonio Ibañez Latorre Batting group for railway maintenance machines capable of batting the ballast under the sleepers of the track, both single and double
AT519195B1 (en) * 2016-10-04 2019-05-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat and method for clogging of sleepers of a track
AT520056B1 (en) * 2017-05-29 2020-12-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Method and device for compacting a track ballast bed
AT519738B1 (en) * 2017-07-04 2018-10-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Method and device for compacting a ballast bed
RU2676253C1 (en) * 2018-04-19 2018-12-26 Анатолий Николаевич Шилкин Method of sealing railway ballast
AT521765B1 (en) * 2018-09-18 2021-06-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Tamping unit and method for tamping under sleepers of a track
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AT521850A1 (en) * 2018-10-24 2020-05-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Track construction machine and method for stuffing sleepers of a track
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AT500972B1 (en) 2006-05-15
EP1653003A3 (en) 2006-09-06
AT500972A4 (en) 2006-05-15
AU2005227382A1 (en) 2006-05-18
US20060090666A1 (en) 2006-05-04
RU2005131295A (en) 2007-04-20
CN1766231A (en) 2006-05-03
KR20060049320A (en) 2006-05-18

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