EP3523478B1 - Tamping unit and method for tamping sleepers of a track - Google Patents

Tamping unit and method for tamping sleepers of a track Download PDF

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Publication number
EP3523478B1
EP3523478B1 EP17762047.3A EP17762047A EP3523478B1 EP 3523478 B1 EP3523478 B1 EP 3523478B1 EP 17762047 A EP17762047 A EP 17762047A EP 3523478 B1 EP3523478 B1 EP 3523478B1
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EP
European Patent Office
Prior art keywords
tamping
drive
vibration
track
sleepers
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.)
Active
Application number
EP17762047.3A
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German (de)
French (fr)
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EP3523478A1 (en
Inventor
Heinz SPRINGER
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
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Plasser und Theurer Export Von Bahnbaumaschinen GmbH
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Publication of EP3523478A1 publication Critical patent/EP3523478A1/en
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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
    • 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
    • E01B27/17—Sleeper-tamping machines combined with means for lifting, levelling or slewing the track
    • 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 for tamping under sleepers of a track, with a tool carrier that is height-adjustable by a drive and mounted on an assembly frame, with pairs of two opposing tamping tools that are mounted on the tool carrier and can be provided to each other around a respective pivot axis as well as by a vibration drive can be set in vibration.
  • the invention also relates to a method for tamping under sleepers of a track with the tamping unit.
  • Tamping units for tamping under sleepers of a track are already known several times, such. B. by AT 500 972 B1 or AT 513 973 B1 . Vibrations acting on the tamping tines can be generated either mechanically by an eccentric shaft or by hydraulic impulses in a linear motor.
  • the tamping tools that can be used in the tamping units of track tamping machines are dipped into the ballast between the individual sleepers and placed in pairs under the sleepers for tamping under the ballast.
  • great forces are transferred to the tamping tools, especially when tamping a ballast bed that has not been renewed and which is often completely encrusted, a very high resistance to penetration often has to be overcome when penetrating the ballast bed, and the tamping tools may be damaged.
  • optimal tamping frequencies for compaction are between 25-40 Hz, whereby penetration of the tamping ax into the ballast can be carried out more easily at higher frequencies.
  • the invention is based on the object of specifying an improvement over the prior art for a tamping unit and a method of the type mentioned above.
  • the invention provides that the drive for lowering the tool carrier is assigned a vibration drive which sets the tamping tools in a vertically acting vibration.
  • a major advantage here is that the tamping tools penetrate the ballast more easily.
  • the vertical vibration results in less immersion impact. This causes less wear and tear on the tamping tools, the service intervals are extended and the stress on the bearings of the tamping unit is reduced.
  • the optimal frequency of the vertical vibration is around 35Hz.
  • the drive and the associated vibration drive are advantageously designed as a common hydraulic cylinder in which a pressure chamber is subjected to a pulsating fluid flow. This creates the possibility of adapting existing tamping units. Specifically, an existing hydraulic cylinder for lowering or raising the tool carrier is controlled in a pulsating manner during an immersion process.
  • a servo valve or proportional valve controlled by means of a controller is arranged on the hydraulic cylinder.
  • Such valves are suitable for pulsating control, the direct attachment to the hydraulic cylinder excluding a damping effect of hydraulic lines.
  • FIG. 1 An in Fig. 1 A simplified tamping unit 1 for tamping under sleepers 2 of a track 3 has pairs of two tamping tools 5 which can be pivoted about a pivot axis 4 and which are mounted on a tool carrier 6 and each connected to an auxiliary drive 7. Each additional drive 7 is connected to an oscillating drive 8 designed as an eccentric. Horizontal vibration oscillations are thus generated, which are transmitted to the ballast 9 to be compacted via the auxiliary drive 7 and the respective tamping tool 5.
  • the tool carrier 6 is supported in a height-adjustable manner on an assembly frame 12 by a drive 10 with an associated vibration drive 11.
  • a servo valve 17 including control 16 is assigned to the drive 10.
  • a track 3 comprising rails 13 and sleepers 2 together with ballast bed 14 is shown.
  • the amplitude of the tamping tools set in vertical vibration is in the millimeter range (dotted line).
  • the drive 10 and the vibration drive 11 are advantageously combined in a common hydraulic cylinder.
  • the hydraulic cylinder is operated with a pulsating flow of fluid during an immersion process acted upon, whereby the lowering movement of the tool carrier 6 is superimposed on a vibration movement.
  • the vibration drive 11 assigned to the drive 10 is switched on and the tamping tools 5 are additionally set into vertical vibration.
  • the vertical vibration is only switched on automatically in the phases of the dipping of the tamping tools 5.
  • the vertical vibration is switched off automatically when a preset tamping depth is reached or when the tamping tool begins.

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

Description

Gebiet der TechnikField of technology

Die Erfindung betrifft ein Stopfaggregat zum Unterstopfen von Schwellen eines Gleises, mit einem durch einen Antrieb höhenverstellbar auf einem Aggregatrahmen gelagerten Werkzeugträger, mit Paaren von zwei gegenüberliegenden Stopfwerkzeugen, die auf dem Werkzeugträger gelagert sind und um eine jeweilige Schwenkachse sowohl zueinander beistellbar als auch durch einen Schwingungsantrieb in Schwingung versetzbar sind. Zudem betrifft die Erfindung ein Verfahren zum Unterstopfen von Schwellen eines Gleises mit dem Stopfaggregat.The invention relates to a tamping unit for tamping under sleepers of a track, with a tool carrier that is height-adjustable by a drive and mounted on an assembly frame, with pairs of two opposing tamping tools that are mounted on the tool carrier and can be provided to each other around a respective pivot axis as well as by a vibration drive can be set in vibration. The invention also relates to a method for tamping under sleepers of a track with the tamping unit.

Stand der TechnikState of the art

Stopfaggregate zum Unterstopfen von Schwellen eines Gleises sind bereits mehrfach bekannt, wie z. B. durch AT 500 972 B1 oder AT 513 973 B1 . Auf die Stopfpickel einwirkende Vibrationen können entweder mechanisch durch eine Exzenterwelle oder durch hydraulische Impulse in einem Linearmotor erzeugt werden.Tamping units for tamping under sleepers of a track are already known several times, such. B. by AT 500 972 B1 or AT 513 973 B1 . Vibrations acting on the tamping tines can be generated either mechanically by an eccentric shaft or by hydraulic impulses in a linear motor.

Die in den Stopfaggregaten von Gleisstopfmaschinen einsetzbaren Stopfwerkzeuge werden in den Schotter zwischen den einzelnen Schwellen eingetaucht und zum Unterstopfen des Schotters unter den Schwellen paarweise zueinander beigestellt. Dabei werden große Kräfte auf die Stopfwerkzeuge übertragen, insbesondere bei einer Stopfung eines nicht erneuerten Schotterbetts, das oftmals vollständig verkrustet ist, ist beim Eindringen in das Schotterbett oft ein sehr hoher Eindringwiderstand zu überwinden und es kann gegebenenfalls zu einer Beschädigung der Stopfwerkzeuge kommen.The tamping tools that can be used in the tamping units of track tamping machines are dipped into the ballast between the individual sleepers and placed in pairs under the sleepers for tamping under the ballast. In the process, great forces are transferred to the tamping tools, especially when tamping a ballast bed that has not been renewed and which is often completely encrusted, a very high resistance to penetration often has to be overcome when penetrating the ballast bed, and the tamping tools may be damaged.

Optimale Stopffrequenzen zur Verdichtung liegen bekanntermaßen zwischen 25-40 Hz, wobei ein Eindringen der Stopfpickel in den Schotter bei höheren Frequenzen leichter ausgeführt werden kann.As is known, optimal tamping frequencies for compaction are between 25-40 Hz, whereby penetration of the tamping ax into the ballast can be carried out more easily at higher frequencies.

Zusammenfassung der ErfindungSummary of the invention

Der Erfindung liegt die Aufgabe zugrunde, für ein Stopfaggregat und ein Verfahren der eingangs genannten Art eine Verbesserung gegenüber dem Stand der Technik anzugeben.The invention is based on the object of specifying an improvement over the prior art for a tamping unit and a method of the type mentioned above.

Erfindungsgemäß wird diese Aufgabe gelöst durch ein Stopfaggregat gemäß Anspruch 1 und ein Verfahren gemäß Anspruch 4. Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.According to the invention, this object is achieved by a tamping unit according to claim 1 and a method according to claim 4. Advantageous developments of the invention emerge from the dependent claims.

Die Erfindung sieht vor, dass dem Antrieb zur Absenkung des Werkzeugträgers ein Vibrationsantrieb zugeordnet ist, der die Stopfwerkzeuge in eine vertikal wirkende Vibration versetzt. Ein wesentlicher Vorteil besteht hier darin, dass ein leichteres Eindringen der Stopfwerkzeuge in den Schotter erfolgt. Durch die vertikale Vibration entsteht ein geringerer Eintauchstoß. Das bewirkt weniger Abnutzung an den Stopfwerkzeugen, die Serviceintervalle werden verlängert und die Beanspruchung der Lagerungen des Stopfaggregates wird verringert. Die optimale Frequenz der vertikalen Vibration liegt bei ca. 35Hz.The invention provides that the drive for lowering the tool carrier is assigned a vibration drive which sets the tamping tools in a vertically acting vibration. A major advantage here is that the tamping tools penetrate the ballast more easily. The vertical vibration results in less immersion impact. This causes less wear and tear on the tamping tools, the service intervals are extended and the stress on the bearings of the tamping unit is reduced. The optimal frequency of the vertical vibration is around 35Hz.

Vorteilhafterweise sind der Antrieb und der zugeordnete Vibrationsantrieb als ein gemeinsamer Hydraulikzylinder ausgebildet, bei dem eine Druckkammer mit einem pulsierenden Fluidstrom beaufschlagt ist. Damit ist die Möglichkeit geschaffen, bestehende Stopfaggregate zu adaptieren. Konkret wird ein bestehender Hydraulikzylinder zum Absenken bzw. Anheben des Werkzeugträgers während eines Eintauchvorgangs pulsierend angesteuert.The drive and the associated vibration drive are advantageously designed as a common hydraulic cylinder in which a pressure chamber is subjected to a pulsating fluid flow. This creates the possibility of adapting existing tamping units. Specifically, an existing hydraulic cylinder for lowering or raising the tool carrier is controlled in a pulsating manner during an immersion process.

Dabei ist es günstig, wenn an dem Hydraulikzylinder ein mittels einer Steuerung angesteuertes Servoventil oder Proportionalventil angeordnet ist. Derartige Ventile eignen sich für eine pulsierende Ansteuerung, wobei die direkte Anbringung am Hydraulikzylinder eine dämpfende Wirkung von Hydraulikleitungen ausschließt.It is advantageous if a servo valve or proportional valve controlled by means of a controller is arranged on the hydraulic cylinder. Such valves are suitable for pulsating control, the direct attachment to the hydraulic cylinder excluding a damping effect of hydraulic lines.

Vorteilhaft ist auch, wenn eine automatisierte Zuschaltung der vertikal wirkenden Vibration beim Eintauchen und eine automatisierte Abschaltung beim Erreichen einer voreingestellten Stopftiefe bzw. bei Beistellbeginn der Stopfwerkzeuge erfolgt. Dadurch kommt es zu einer Effizienzsteigerung des Stopfaggregates, wobei die Beistellbewegung der Stopfwerkzeuge auf die bewährte Art und Weise erfolgt.It is also advantageous if there is an automated connection of the vertically acting vibration during immersion and an automated switch-off when a preset tamping depth is reached or when the tamping tools begin to be provided. This increases the efficiency of the Tamping unit, whereby the supply movement of the tamping tools takes place in the proven way.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Die Erfindung wird nachfolgend in beispielhafter Weise unter Bezugnahme auf die beigefügten Figuren erläutert. Es zeigen in schematischer Darstellung:

Fig. 1
eine schematische Seitenansicht eines Stopfaggregates
Fig. 2
eine Detailansicht eines Stopfwerkzeugs
The invention is explained below by way of example with reference to the accompanying figures. It shows in a schematic representation:
Fig. 1
a schematic side view of a tamping unit
Fig. 2
a detailed view of a tamping tool

Beschreibung der AusführungsformenDescription of the embodiments

Ein in Fig. 1 vereinfacht dargestelltes Stopfaggregat 1 zum Unterstopfen von Schwellen 2 eines Gleises 3 weist Paare von je zwei um eine Schwenkachse 4 verschwenkbare Stopfwerkzeugen 5 auf, welche auf einem Werkzeugträger 6 gelagert und jeweils mit einem Beistellantrieb 7 verbunden sind. Jeder Beistellantrieb 7 ist mit einem als Exzenter ausgeführten Schwingungsantrieb 8 verbunden. Damit werden horizontale Vibrationsschwingungen erzeugt, die über den Beistellantrieb 7 und das jeweilige Stopfwerkzeug 5 auf den zu verdichtenden Schotter 9 übertragen werden. Der Werkzeugträger 6 ist durch einen Antrieb 10 mit zugeordnetem Vibrationsantrieb 11 höhenverstellbar auf einem Aggregatrahmen 12 gelagert. Dem Antrieb 10 ist ein Servoventil 17 samt Steuerung 16 zugeordnet.An in Fig. 1 A simplified tamping unit 1 for tamping under sleepers 2 of a track 3 has pairs of two tamping tools 5 which can be pivoted about a pivot axis 4 and which are mounted on a tool carrier 6 and each connected to an auxiliary drive 7. Each additional drive 7 is connected to an oscillating drive 8 designed as an eccentric. Horizontal vibration oscillations are thus generated, which are transmitted to the ballast 9 to be compacted via the auxiliary drive 7 and the respective tamping tool 5. The tool carrier 6 is supported in a height-adjustable manner on an assembly frame 12 by a drive 10 with an associated vibration drive 11. A servo valve 17 including control 16 is assigned to the drive 10.

In Fig. 2 ist ein Schienen 13 und Schwellen 2 umfassendes Gleis 3 samt Schotterbettung 14 dargestellt. Das durch den Vibrationsantrieb 11 in eine vertikale Vibration (Pfeil 15) versetzte Stopfwerkzeug 5 wird beim Eintauchvorgang mittels des Antriebs 10 aus einer angehobenen Position (gestrichelte Linie) in eine abgesenkte Position (volle Linie) bewegt. Die Amplitude der in vertikale Vibration versetzten Stopfwerkzeuge bewegt sich im Millimeterbereich (punktierte Linie).In Fig. 2 a track 3 comprising rails 13 and sleepers 2 together with ballast bed 14 is shown. The tamping tool 5, which is set into vertical vibration (arrow 15) by the vibration drive 11, is moved during the immersion process by means of the drive 10 from a raised position (dashed line) to a lowered position (full line). The amplitude of the tamping tools set in vertical vibration is in the millimeter range (dotted line).

Vorteilhafterweise sind der Antrieb 10 und der Vibrationsantrieb 11 in einem gemeinsamen Hydraulikzylinder vereint. Dabei wird der Hydraulikzylinder während eines Eintauchvorgangs mit einem pulsierenden Fluidstrom beaufschlagt, wodurch der Absenkbewegung des Werkzeugträgers 6 eine Vibrationsbewegung überlagert wird.The drive 10 and the vibration drive 11 are advantageously combined in a common hydraulic cylinder. The hydraulic cylinder is operated with a pulsating flow of fluid during an immersion process acted upon, whereby the lowering movement of the tool carrier 6 is superimposed on a vibration movement.

Im Folgenden werden das Verfahren und die Funktionsweise beschrieben. Für ein leichteres Eindringen der Stopfwerkzeuge 5 in die Schotterbettung 14 wird der dem Antrieb 10 zugeordnete Vibrationsantrieb 11 zugeschaltet und die Stopfwerkzeuge 5 zusätzlich in eine vertikale Vibration versetzt. Eine automatische Zuschaltung der vertikalen Vibration erfolgt nur in den Phasen des Eintauchens der Stopfwerkzeuge 5. Eine automatische Abschaltung der vertikalen Vibration erfolgt bei Erreichen einer voreingestellten Stopftiefe bzw. bei Beistellbeginn.The procedure and functionality are described below. For easier penetration of the tamping tools 5 into the ballast bed 14, the vibration drive 11 assigned to the drive 10 is switched on and the tamping tools 5 are additionally set into vertical vibration. The vertical vibration is only switched on automatically in the phases of the dipping of the tamping tools 5. The vertical vibration is switched off automatically when a preset tamping depth is reached or when the tamping tool begins.

Claims (5)

  1. A tamping unit (1) for tamping sleepers (2) of a track (3), having a tool carrier (6) mounted on an assembly frame (12) for vertical adjustment by means of a drive (10), having pairs of two oppositely positioned tamping tools (5) which are mounted on the tool carrier (6) and squeezable towards one another about a respective pivot axis (4) as well as designed to be set in vibrations by a vibration drive (8), characterized in that a vibration drive (11) is associated with the drive (10), the vibration drive (11) setting the tamping tools (5) in a vibration which is effective vertically.
  2. A tamping unit (1) according to claim 1, characterized in that the drive (10) and the associated vibration drive (11) are designed as a hydraulic cylinder in which a pressure chamber is actuated with a pulsing fluid stream.
  3. A tamping unit (1) according to claim 2, characterized in that a servo valve or proportional valve (17) activated by means of a control (16) is arranged at the hydraulic cylinder.
  4. A method for tamping sleepers (2) of a track (3) by means of a tamping unit (1) according to one of claims 1 to 3, characterized in that the tamping tools (5) are set in a vertically effective vibration during immersion into a ballast bed (9).
  5. A method for tamping sleepers (2) of a track (3) according to claim 4, characterized in that the vertically effective vibration is switched on automatically during immersion and switched off automatically upon reaching a pre-set tamping depth or at the beginning of squeezing of the tamping tools (5).
EP17762047.3A 2016-10-04 2017-09-07 Tamping unit and method for tamping sleepers of a track Active EP3523478B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA457/2016A AT519195B1 (en) 2016-10-04 2016-10-04 Stopfaggregat and method for clogging of sleepers of a track
PCT/EP2017/001056 WO2018065080A1 (en) 2016-10-04 2017-09-07 Tamping unit and method for tamping sleepers of a track

Publications (2)

Publication Number Publication Date
EP3523478A1 EP3523478A1 (en) 2019-08-14
EP3523478B1 true EP3523478B1 (en) 2020-08-26

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EP17762047.3A Active EP3523478B1 (en) 2016-10-04 2017-09-07 Tamping unit and method for tamping sleepers of a track

Country Status (11)

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US (1) US11105047B2 (en)
EP (1) EP3523478B1 (en)
JP (1) JP6961687B2 (en)
CN (1) CN109790691B (en)
AT (1) AT519195B1 (en)
AU (1) AU2017340546B2 (en)
CA (1) CA3034289A1 (en)
DK (1) DK3523478T3 (en)
EA (1) EA039698B1 (en)
ES (1) ES2821922T3 (en)
WO (1) WO2018065080A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT518195B1 (en) * 2016-01-26 2017-11-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Method for compacting the ballast bed of a track and tamping unit
AT519195B1 (en) * 2016-10-04 2019-05-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat and method for clogging of sleepers of a track
AT16251U1 (en) * 2018-01-22 2019-05-15 Hp3 Real Gmbh Tamping unit for a tamping machine
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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JPS5434202B2 (en) * 1975-01-29 1979-10-25
JPS60190801U (en) * 1984-05-25 1985-12-18 芝浦メカトロニクス株式会社 Tamping aid
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EP0698687B1 (en) * 1994-08-09 1997-02-19 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Tamping machine, for tamping two adjacent sleepers
AT500972B1 (en) * 2004-10-29 2006-05-15 Plasser Bahnbaumasch Franz METHOD FOR SUBSTITUTING THRESHOLD
AT513277B1 (en) * 2012-10-24 2014-03-15 Plasser Bahnbaumasch Franz Machine for submerging a track
AT513034B1 (en) * 2012-10-24 2014-01-15 Plasser Bahnbaumasch Franz Method for submerging a track
AT513973B1 (en) 2013-02-22 2014-09-15 System7 Railsupport Gmbh Tamping unit for a tamping machine
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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
AT518023B1 (en) * 2015-12-02 2018-04-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Tamping machine and method for performing a position correction of a track
AT519195B1 (en) * 2016-10-04 2019-05-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat and method for clogging of sleepers of a track

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Also Published As

Publication number Publication date
AU2017340546B2 (en) 2023-01-05
EA201900074A1 (en) 2019-08-30
AT519195B1 (en) 2019-05-15
US20190234025A1 (en) 2019-08-01
ES2821922T3 (en) 2021-04-28
CN109790691A (en) 2019-05-21
EA039698B1 (en) 2022-03-01
US11105047B2 (en) 2021-08-31
CA3034289A1 (en) 2018-04-12
WO2018065080A1 (en) 2018-04-12
JP6961687B2 (en) 2021-11-05
JP2019529755A (en) 2019-10-17
AT519195A1 (en) 2018-04-15
CN109790691B (en) 2022-03-22
EP3523478A1 (en) 2019-08-14
DK3523478T3 (en) 2020-11-16
AU2017340546A1 (en) 2019-03-14

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