EP3377698A1 - Tamping unit and method for tamping a track - Google Patents

Tamping unit and method for tamping a track

Info

Publication number
EP3377698A1
EP3377698A1 EP16787726.5A EP16787726A EP3377698A1 EP 3377698 A1 EP3377698 A1 EP 3377698A1 EP 16787726 A EP16787726 A EP 16787726A EP 3377698 A1 EP3377698 A1 EP 3377698A1
Authority
EP
European Patent Office
Prior art keywords
pressure chamber
beistellbewegung
vibration
piston rod
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16787726.5A
Other languages
German (de)
French (fr)
Other versions
EP3377698B1 (en
Inventor
Ronald Steiner
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.)
Plasser und Theurer Export Von Bahnbaumaschinen GmbH
Original Assignee
Plasser und Theurer Export Von Bahnbaumaschinen 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.)
Filing date
Publication date
Application filed by Plasser und Theurer Export Von Bahnbaumaschinen GmbH filed Critical Plasser und Theurer Export Von Bahnbaumaschinen GmbH
Publication of EP3377698A1 publication Critical patent/EP3377698A1/en
Application granted granted Critical
Publication of EP3377698B1 publication Critical patent/EP3377698B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/12—Fluid oscillators or pulse generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/12—Tamping devices

Definitions

  • the invention relates to a tamping unit according to the features cited in the preamble of claim 1 and to a method for submerging a track, the known features of which are cited in the preamble of claim 5.
  • a tamping unit is known from EP 1 653 003 A1, in which tamping knives are moved in pairs relative to one another in order to plug a track together. This additional movement for ballast compaction is carried out with the aid of a hydraulically actuated auxiliary cylinder. The addition movement is hydraulically superimposed on a vibratory movement in order to achieve easier penetration into the ballast and improved compaction.
  • FIG. 1 shows a side view of a tamping machine with a tamping unit
  • FIG. 2 shows an enlarged side view of the tamping unit having auxiliary drives
  • FIG. 3 shows a schematic cross section through a side drive.
  • a tamping machine 1 shown in simplified form in FIG. 1 has a through
  • Rail bogies 2 on a track 3 movable machine frame 4 on. Between the two rail bogies 2 a height adjustable by a drive 5 Stopfaggregat 6 for Unterstopfen thresholds 7 is arranged.
  • the tamping unit 6 shown enlarged in Fig. 2 has in a Beistellterrorism 8 in pairs about a pivot axis 9 to each other movable, at a lower end 10 with stuffing toppers 11 connected tamping 12 on. These are at an upper end 13 each with a hydraulic Beistellantrieb 14 which are formed both for carrying out the Beistell Gay 8 and one of these superimposed vibration. Both stuffing lever 12 and the Beistellantriebe 14 are mounted on a height adjustable by the drive 5 relative to an aggregate frame 15 carrier 16.
  • a first pressure chamber 20 for generating the Beistell canyon 8 is arranged in a - a Beistellkolben 17 with a piston rod 18 having - hydraulic cylinder 19 of the Beistellantriebes 14.
  • a second pressure chamber 21 is provided for one of the Beistell Gay 8 opposing opening movement piston rod side.
  • a third pressure chamber 22 provided for generating vibration is formed by a cavity 23 arranged in the piston rod 18. This is limited piston side by a fixed to a cylinder bottom 24 of the hydraulic cylinder 19 second piston rod 25. Both piston rods 18, 25 are arranged coaxially to a cylinder axis 26 of the hydraulic cylinder 19.
  • the three pressure chambers 20, 21, 22 are each associated with hydraulic lines 27, wherein the connected to the first pressure chamber 20 hydraulic line 27 is connected to a formed as a bladder accumulator energy storage 28.
  • a piston surface 29 the second piston rod 25 and a piston rod-side piston surface 30 of the Beistellkolbens 17 have the same area.
  • the threshold 7 are by applying each of the first pressure chamber 20 of each Beistellantriebes 14 both stuffing 12 pivoted relative to a lower portion about the pivot axis 9 to each other, whereby the tamping 11 are provided in the Beistelldoch 8 to each other.
  • the opposing opening movement is achieved by applying the second pressure chamber 21.
  • the second oscillation amplitude effective in the opposite direction is formed by a pressure pulse in the second pressure chamber 21.
  • the second vibration pulse causes fluid displacement from the first pressure chamber 20.
  • the energy generated in this way is in Energy storage 28 buffered and returned to the activation of the first vibration pulse back into the first pressure chamber 20.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

In a tamping unit for packing a track, actuating drives (14) are provided for effecting an actuating movement of tamping picks. A first pressure chamber (20) for generating the actuating movement (8) is provided in a hydraulic cylinder (19) of the actuating drive (14), said hydraulic cylinder (19) comprising an actuating piston (17) with a piston rod (18). In addition, a second pressure chamber (21) is provided for generating an opening movement in the direction opposite the actuating movement, and a third pressure chamber (22) is provided for generating vibrations.

Description

Stopfaggregat sowie Verfahren zum Unterstopfen eines Gleises  Tamping unit and method for submerging a track
[01] Die Erfindung betrifft ein Stopfaggregat nach den im Oberbegriff von Anspruch 1 angeführten Merkmalen sowie ein Verfahren zum Unterstopfen eines Gleises, dessen bekannte Merkmale im Oberbegriff von Anspruch 5 angeführt sind. [01] The invention relates to a tamping unit according to the features cited in the preamble of claim 1 and to a method for submerging a track, the known features of which are cited in the preamble of claim 5.
[02] Durch EP 1 653 003 A1 ist ein Stopfaggregat bekannt, wobei zum Unterstopfen eines Gleises Stopfpickel paarweise zueinander bewegt werden. Diese Beistellbewegung zur Schotterverdichtung wird mit Hilfe eines hydraulisch beaufschlagbaren Beistellzylinders durchgeführt. Der Beistellbewegung wird hydraulisch eine Vibrationsbewegung überlagert, um damit ein einfacheres Eindringen in den Schotter sowie eine verbesserte Verdichtung zu erzielen.  [02] A tamping unit is known from EP 1 653 003 A1, in which tamping knives are moved in pairs relative to one another in order to plug a track together. This additional movement for ballast compaction is carried out with the aid of a hydraulically actuated auxiliary cylinder. The addition movement is hydraulically superimposed on a vibratory movement in order to achieve easier penetration into the ballast and improved compaction.
[03] Die Aufgabe der vorliegenden Erfindung liegt nun in der Schaffung eines  [03] The object of the present invention is now to provide a
Stopfaggregates sowie eines Verfahrens der eingangs genannten Art, mit dem ein reduzierter Energieaufwand für die Schwingungsüberlagerung in den Beistellantrieben möglich ist.  Stopfaggregates and a method of the type mentioned, with a reduced energy consumption for the vibration superposition in the Beistellantrieben is possible.
[04] Diese Aufgabe wird erfindungsgemäß mit einem Stopfaggregat bzw. einem Verfahren der gattungsgemäßen Art durch die im Kennzeichen der Hauptansprüche 1 bzw. 5 angeführten Merkmale gelöst.  This object is achieved with a Stopfaggregat or a method of the generic type by the features cited in the characterizing part of the main claims 1 and 5, respectively.
[05] Mit einer derartigen dritten Druckkammer ist eine vorteilhafte Trennung zwischen der Druckbeaufschlagung für die Beistellbewegung und der dieser überlagerten Vibrationsamplitude erzielbar. Durch die damit verbünde- / ne Addition von Beistell- und Vibrationsimpuls sind unter Reduktion des Energieaufwandes geringere Drücke verwendbar. Im Falle von verkrustetem Schotter kann mit einer Druckerhöhung eine deutlich höhere Schlagkraft in Richtung der Beistellbewegung unter Beibehaltung der Schwingungsamplitude erzielt werden. [05] With such a third pressure chamber, an advantageous separation between the pressurization for the Beistellbewegung and this superimposed vibration amplitude can be achieved. Through the associated The addition of the addition and vibration impulses makes it possible to use lower pressures while reducing the energy expenditure. In the case of encrusted gravel can be achieved with a pressure increase significantly higher impact force in the direction of Beistellbewegung while maintaining the vibration amplitude.
[06] Weitere Vorteile der Erfindung ergeben sich aus den Patentansprüchen und der Zeichnungsbeschreibung.  [06] Further advantages of the invention will become apparent from the claims and the description of the drawings.
[07] Im Folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben. Es zeigen: Fig. 1 eine Seitenansicht einer Stopfmaschine mit einem Stopfaggregat, Fig. 2 eine vergrößerte Seitenansicht des Beistellantriebe aufweisenden Stopfaggregates, und Fig. 3 einen schematischen Querschnitt durch einen Beistellantrieb.  [07] In the following the invention will be described in more detail with reference to an embodiment shown in the drawing. 1 shows a side view of a tamping machine with a tamping unit, FIG. 2 shows an enlarged side view of the tamping unit having auxiliary drives, and FIG. 3 shows a schematic cross section through a side drive.
[08] Eine in Fig. 1 vereinfacht dargestellte Stopfmaschine 1 weist einen durch  [08] A tamping machine 1 shown in simplified form in FIG. 1 has a through
Schienenfahrwerke 2 auf einem Gleis 3 verfahrbaren Maschinenrahmen 4 auf. Zwischen den beiden Schienenfahrwerken 2 ist ein durch einen Antrieb 5 höhenverstellbares Stopfaggregat 6 zum Unterstopfen von Schwellen 7 angeordnet.  Rail bogies 2 on a track 3 movable machine frame 4 on. Between the two rail bogies 2 a height adjustable by a drive 5 Stopfaggregat 6 for Unterstopfen thresholds 7 is arranged.
[09] Das in Fig. 2 vergrößert dargestellte Stopfaggregat 6 weist in einer Beistellbewegung 8 paarweise um eine Schwenkachse 9 zueinander bewegbare, an einem unteren Ende 10 mit Stopfpickeln 11 verbundene Stopfhebel 12 auf. Diese sind an einem oberen Ende 13 jeweils mit einem hydraulischen Beistellantrieb 14 verbunden, die sowohl zur Durchführung der Beistellbewegung 8 als auch einer dieser überlagerten Vibration ausgebildet sind. Beide Stopfhebel 12 und die Beistellantriebe 14 sind auf einem durch den Antrieb 5 relativ zu einem Aggregatrahmen 15 höhenverstellbaren Träger 16 gelagert. The tamping unit 6 shown enlarged in Fig. 2 has in a Beistellbewegung 8 in pairs about a pivot axis 9 to each other movable, at a lower end 10 with stuffing toppers 11 connected tamping 12 on. These are at an upper end 13 each with a hydraulic Beistellantrieb 14 which are formed both for carrying out the Beistellbewegung 8 and one of these superimposed vibration. Both stuffing lever 12 and the Beistellantriebe 14 are mounted on a height adjustable by the drive 5 relative to an aggregate frame 15 carrier 16.
[10] Wie in Fig. 3 ersichtlich, ist in einem - einen Beistellkolben 17 mit einer Kolbenstange 18 aufweisenden - Hydraulikzylinder 19 des Beistellantriebes 14 eine erste Druckkammer 20 zur Erzeugung der Beistellbewegung 8 angeordnet. Für eine der Beistellbewegung 8 entgegen gerichtete Öffnungsbewegung ist kolbenstangenseitig eine zweite Druckkammer 21 vorgesehen.  As shown in Fig. 3, in a - a Beistellkolben 17 with a piston rod 18 having - hydraulic cylinder 19 of the Beistellantriebes 14, a first pressure chamber 20 for generating the Beistellbewegung 8 is arranged. For one of the Beistellbewegung 8 opposing opening movement piston rod side, a second pressure chamber 21 is provided.
[11] Eine zur Vibrationserzeugung vorgesehene dritte Druckkammer 22 ist durch einen in der Kolbenstange 18 angeordneten Hohlraum 23 gebildet. Dieser ist kolbenseitig durch eine an einem Zylinderboden 24 des Hydraulikzylinders 19 befestigte zweite Kolbenstange 25 begrenzt. Beide Kolbenstangen 18, 25 sind koaxial zu einer Zylinderachse 26 des Hydraulikzylinders 19 angeordnet.  [11] A third pressure chamber 22 provided for generating vibration is formed by a cavity 23 arranged in the piston rod 18. This is limited piston side by a fixed to a cylinder bottom 24 of the hydraulic cylinder 19 second piston rod 25. Both piston rods 18, 25 are arranged coaxially to a cylinder axis 26 of the hydraulic cylinder 19.
[12] Den drei Druckkammern 20, 21 , 22 sind jeweils Hydraulikleitungen 27 zugeordnet, wobei die an die erste Druckkammer 20 angeschlossene Hydraulikleitung 27 mit einem als Blasenspeicher ausgebildeten Energiespeicher 28 verbunden ist. Eine Kolbenfläche 29 der zweiten Kolbenstange 25 und eine kolbenstangenseitige Kolbenfläche 30 des Beistellkolbens 17 weisen gleichen Flächeninhalt auf. The three pressure chambers 20, 21, 22 are each associated with hydraulic lines 27, wherein the connected to the first pressure chamber 20 hydraulic line 27 is connected to a formed as a bladder accumulator energy storage 28. A piston surface 29 the second piston rod 25 and a piston rod-side piston surface 30 of the Beistellkolbens 17 have the same area.
[13] Zum Unterstopfen der Schwelle 7 werden durch Beaufschlagung jeweils der ersten Druckkammer 20 jedes Beistellantriebes 14 beide Stopfhebel 12 bezüglich eines unteren Abschnittes um die Schwenkachse 9 zueinander verschwenkt, wodurch die Stopfpickel 11 in der Beistellbewegung 8 zueinander beigestellt werden. Nach Beendigung der Beistellbewegung bzw. der Schotterverdichtung wird die entgegen gerichtete Öffnungsbewegung durch Beaufschlagung der zweiten Druckkammer 21 erreicht.  To underfill the threshold 7 are by applying each of the first pressure chamber 20 of each Beistellantriebes 14 both stuffing 12 pivoted relative to a lower portion about the pivot axis 9 to each other, whereby the tamping 11 are provided in the Beistellbewegung 8 to each other. After completion of the Beistellbewegung or the ballast compaction, the opposing opening movement is achieved by applying the second pressure chamber 21.
[14] Der Beistell- und Öffnungsbewegung der Stopfpickel 11 wird jeweils eine aus zwei Schwingungsamplituden zusammengesetzte, vorzugsweise sinusförmige Schwingung überlagert, wobei die in Richtung der Beistellbewegung 8 (s. Fig. 3) wirkende erste Schwingungsamplitude durch einen Druckimpuls in der dritten Druckkammer 22 erzeugt wird. Damit addieren sich Beistell- und Vibrationskraft in der für die Schotterverdichtung bzw. für das Aufbrechen von verkrustetem Schotter sehr wichtigen Beistellbewegung.  [14] The supply and opening movement of the tamping pickles 11 is superimposed on a preferably sinusoidal oscillation composed of two oscillation amplitudes, wherein the first oscillation amplitude acting in the direction of the auxiliary movement 8 (see Fig. 3) is generated by a pressure pulse in the third pressure chamber 22 becomes. This adds additional and vibrational force in the very important Beistellbewegung for gravel compaction or for the breaking up of crusted gravel.
[15] Die in der Gegenrichtung (in Öffnungsrichtung der Stopfpickel 11) wirksame zweite Schwingungsamplitude wird durch einen Druckimpuls in der zweiten Druckkammer 21 gebildet.  [15] The second oscillation amplitude effective in the opposite direction (in the opening direction of the stuffing tongs 11) is formed by a pressure pulse in the second pressure chamber 21.
[16] Mit dem zweiten Vibrationsimpuls wird eine Fluidverdrängung aus der ersten Druckkammer 20 verursacht. Die damit erzeugte Energie wird im Energiespeicher 28 zwischengespeichert und mit der Aktivierung des ersten Vibrationsimpulses wieder in die erste Druckkammer 20 rückgeführt. [16] The second vibration pulse causes fluid displacement from the first pressure chamber 20. The energy generated in this way is in Energy storage 28 buffered and returned to the activation of the first vibration pulse back into the first pressure chamber 20.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Stopfaggregat mit in einer Beistellbewegung (8) paarweise um eine 1. Stopfaggregat with in a Beistellbewegung (8) in pairs by one
Schwenkachse (9) zueinander bewegbaren, an einem unteren Ende (10) mit Stopfpickeln (11) verbundenen Stopfhebeln (12), wobei diese an einem oberen Ende (13) mit einem zur Durchführung der Beistellbewegung (8) sowie einer dieser überlagerten Vibration ausgebildeten hydraulischen Beistellantrieb (14) verbunden sind, Pivot axis (9) to each other movable, at a lower end (10) with stuffing tacks (11) connected Stopfhebeln (12), which at an upper end (13) with a trained for performing the Beistellbewegung (8) and one of these superimposed vibration hydraulic Beistellantrieb (14) are connected,
dadurch gekennzeichnet, dass characterized in that
in einem - einen Beistellkolben ( 7) mit einer Kolbenstange (18) aufweisenden - Hydraulikzylinder (19) des Beistellantriebes (14) eine erste Druckkammer (20) zur Erzeugung der Beistellbewegung, eine zweite Druckkammer (21) zur Erzeugung einer der Beistellbewegung entgegen gerichteten Öffnungsbewegung und eine zur Vibrationserzeugung vorgesehene dritte Druckkammer (22) angeordnet ist. in a - a Beistellkolben (7) with a piston rod (18) having - hydraulic cylinder (19) of the Beistellantriebes (14) a first pressure chamber (20) for generating the Beistellbewegung, a second pressure chamber (21) for generating the Beistellbewegung oppositely directed opening movement and a vibration generating third pressure chamber (22) is arranged.
2. Stopfaggregat nach Anspruch 1 , dadurch gekennzeichnet, dass die dritte Druckkammer (22) durch einen in der Kolbenstange (18) angeordneten Hohlraum (23) gebildet ist, der kolbenseitig durch eine an einem Zylinderboden (24) des Hydraulikzylinders (19) befestigte zweite Kolbenstange (25) begrenzt ist, wobei beide Kolbenstangen (18, 25) koaxial zu einer Zylinderachse (26) des Hydraulikzylinders (19) angeordnet sind. 2. Stopfaggregat according to claim 1, characterized in that the third pressure chamber (22) by a in the piston rod (18) arranged cavity (23) is formed, the piston side by a on a cylinder bottom (24) of the hydraulic cylinder (19) fixed second Piston rod (25) is limited, wherein both piston rods (18, 25) are arranged coaxially to a cylinder axis (26) of the hydraulic cylinder (19).
3. Stopfaggregat nach Anspruch 2, dadurch gekennzeichnet, dass eine Kolbenfläche (29) der zweiten Kolbenstange (25) und eine kolbenstangenseitige Kolbenfläche (30) des Beistellkolbens (17) gleichen Flächeninhalt aufweisen. 3. Stopfaggregat according to claim 2, characterized in that a piston surface (29) of the second piston rod (25) and a piston rod-side piston surface (30) of the Beistellkolbens (17) have the same area.
4. Stopfaggregat nach Anspruch 1 , dadurch gekennzeichnet, dass die erste Druckkammer (20) mit einem Energiespeicher (28) verbunden ist. 4. Stopfaggregat according to claim 1, characterized in that the first pressure chamber (20) with an energy store (28) is connected.
5. Verfahren zum Unterstopfen eines Gleises, wobei um eine Schwenkachse (9) zueinander bewegbare, an einem unteren Ende (10) mit Stopfpickeln (11) verbundene Stopfhebel (12) durch Beaufschlagung einer ersten Druckkammer (20) in einer Beistellbewegung (8) zueinander beigestellt und durch Beaufschlagung einer zweiten Druckkammer (21) in einer entgegengesetzten Öffnungsbewegung geöffnet werden, und wobei diesen beiden Bewegungen jeweils eine Vibration überlagert wird, dadurch gekennzeichnet, dass ein jeweils in Richtung der Beistellbewegung (8) wirksamer erster Vibrationsimpuls in einer dritten Druckkammer (22) erzeugt wird. 5. A method for plugging a track, wherein about a pivot axis (9) to each other movable, at a lower end (10) with stuffing tacks (11) connected Stopfhebel (12) by acting on a first pressure chamber (20) in a Beistellbewegung (8) to each other provided and opened by applying a second pressure chamber (21) in an opposite opening movement, and wherein each of these two movements a vibration is superimposed, characterized in that in each case in the direction of Beistellbewegung (8) effective first vibration pulse in a third pressure chamber (22 ) is produced.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass ein in Richtung der Öffnungsbewegung (8) wirksamer zweiter Vibrationsimpuls in der zweiten Druckkammer (21) erzeugt wird. 6. The method according to claim 5, characterized in that in the direction of the opening movement (8) effective second vibration pulse in the second pressure chamber (21) is generated.
7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die durch den zweiten Vibrationsimpuls und die damit verursachte Fluidverdrängung aus der ersten Druckkammer (20) erzeugte Energie in einem Energiespeicher (28) zwischengespeichert und mit der Aktivierung des ersten Vibrationsimpulses wieder in die erste Druckkammer (20) rückgeführt wird. 7. The method according to claim 6, characterized in that the energy generated by the second vibration pulse and thus caused fluid displacement from the first pressure chamber (20) in an energy store (28) and with the activation of the first vibration pulse back into the first pressure chamber ( 20) is returned.
EP16787726.5A 2015-11-18 2016-10-19 Tamping unit and method for tamping a track Active EP3377698B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA742/2015A AT517480B1 (en) 2015-11-18 2015-11-18 Tamping unit and method for submerging a track
PCT/EP2016/001733 WO2017084732A1 (en) 2015-11-18 2016-10-19 Tamping unit and method for tamping a track

Publications (2)

Publication Number Publication Date
EP3377698A1 true EP3377698A1 (en) 2018-09-26
EP3377698B1 EP3377698B1 (en) 2019-12-11

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EP16787726.5A Active EP3377698B1 (en) 2015-11-18 2016-10-19 Tamping unit and method for tamping a track

Country Status (8)

Country Link
US (1) US10633801B2 (en)
EP (1) EP3377698B1 (en)
JP (1) JP6743147B2 (en)
CN (1) CN108291369B (en)
AT (1) AT517480B1 (en)
EA (1) EA034353B1 (en)
ES (1) ES2769060T3 (en)
WO (1) WO2017084732A1 (en)

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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
AT517480B1 (en) * 2015-11-18 2017-02-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Tamping unit and method for submerging a track
AT520796B1 (en) * 2017-12-21 2020-07-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Darning unit for tamping sleepers on a track
AT521990B1 (en) * 2018-12-27 2022-07-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Method and track-laying machine for processing a ballasted track
AT522456B1 (en) * 2019-10-08 2020-11-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Tamping unit for tamping under sleepers of a track
CN111501436B (en) * 2020-04-30 2021-12-24 中国铁建重工集团股份有限公司 Hydraulic tamping device

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CN108291369B (en) 2020-02-21
ES2769060T3 (en) 2020-06-24
JP2018534453A (en) 2018-11-22
CN108291369A (en) 2018-07-17
WO2017084732A1 (en) 2017-05-26
US10633801B2 (en) 2020-04-28
EA201800171A1 (en) 2018-10-31
AT517480A4 (en) 2017-02-15
EA034353B1 (en) 2020-01-30
JP6743147B2 (en) 2020-08-19
AT517480B1 (en) 2017-02-15
WO2017084732A8 (en) 2018-04-12
EP3377698B1 (en) 2019-12-11
US20180274178A1 (en) 2018-09-27

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