EP3377698B1 - Tamping unit and method for tamping a track - Google Patents

Tamping unit and method for tamping a track Download PDF

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Publication number
EP3377698B1
EP3377698B1 EP16787726.5A EP16787726A EP3377698B1 EP 3377698 B1 EP3377698 B1 EP 3377698B1 EP 16787726 A EP16787726 A EP 16787726A EP 3377698 B1 EP3377698 B1 EP 3377698B1
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EP
European Patent Office
Prior art keywords
pressure chamber
tamping
squeezing
piston
motion
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP16787726.5A
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German (de)
French (fr)
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EP3377698A1 (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
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Plasser und Theurer Export Von Bahnbaumaschinen GmbH
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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
    • 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.
  • EP 1 653 003 A2 is a Stopfaggregat known, wherein the stuffing of a track stuffing pick are moved in pairs to each other. 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.
  • the object of the present invention is now to provide a Stopfaggregates and a method of the type mentioned, with a reduced energy consumption for the vibration superposition in the Beistellantrieben is possible.
  • Fig. 1 a side view of a tamping machine with a tamping unit
  • Fig. 2 an enlarged side view of Beistellantriebe tamping unit
  • Fig. 3 a schematic cross section through a Beistellantrieb.
  • Tamping machine 1 shown in a simplified manner has a machine frame 4 which can be moved by rail carriages 2 on a track 3. Between the two rail bogies 2 a height adjustable by a drive 5 Stopfaggregat 6 for Unterstopfen thresholds 7 is arranged.
  • tamping unit 6 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.
  • 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 designed 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.
  • each of the first pressure chamber 20 of each Beistellantriebes 14 both stuffing lever 12 with respect to a lower portion about the pivot axis 9 are pivoted to each other by applying the stuffing tamp 11 are provided in the Beistelldoch 8 to each other.
  • the opposing opening movement is achieved by applying the second pressure chamber 21.
  • the Beistell- and opening movement of the tamping pickle 11 is superimposed in each case a composite of two vibration amplitudes, preferably sinusoidal vibration, wherein in the direction of the Beistellieri 8 (s. Fig. 3 ) acting first oscillation amplitude is generated by a pressure pulse in the third pressure chamber 22.
  • the second oscillation amplitude acting 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)

Description

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.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.

Durch EP 1 653 003 A2 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.By EP 1 653 003 A2 is a Stopfaggregat known, wherein the stuffing of a track stuffing pick are moved in pairs to each other. 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.

Die Aufgabe der vorliegenden Erfindung liegt nun in der Schaffung eines Stopfaggregates sowie eines Verfahrens der eingangs genannten Art, mit dem ein reduzierter Energieaufwand für die Schwingungsüberlagerung in den Beistellantrieben möglich ist.The object of the present invention is now to provide a Stopfaggregates and a method of the type mentioned, with a reduced energy consumption for the vibration superposition in the Beistellantrieben is possible.

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 tamping unit or a method of the generic type by the features cited in the characterizing part of the main claims 1 and 5, respectively.

Mit einer derartigen dritten Druckkammer ist eine vorteilhafte Trennung zwischen der Druckbeaufschlagung für die Beistellbewegung und der dieser überlagerten Vibrationsamplitude erzielbar. Durch die damit verbundene 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.With such a third pressure chamber, an advantageous separation between the pressurization for the Beistellbewegung and this superimposed vibration amplitude can be achieved. By the associated Addition of additional and vibration impulses can be used to reduce the energy input and lower pressures. In the case of encrusted gravel can be achieved with a pressure increase significantly higher impact in the direction of Beistellbewegung while maintaining the vibration amplitude.

Weitere Vorteile der Erfindung ergeben sich aus den Patentansprüchen und der Zeichnungsbeschreibung.Further advantages of the invention will become apparent from the claims and the description of the drawings.

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.In the following the invention will be described with reference to an embodiment shown in the drawing. Show it: Fig. 1 a side view of a tamping machine with a tamping unit, Fig. 2 an enlarged side view of Beistellantriebe tamping unit, and Fig. 3 a schematic cross section through a Beistellantrieb.

Eine in Fig. 1 vereinfacht dargestellte Stopfmaschine 1 weist einen durch 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.An in Fig. 1 Tamping machine 1 shown in a simplified manner has a machine frame 4 which can be moved by rail carriages 2 on a track 3. Between the two rail bogies 2 a height adjustable by a drive 5 Stopfaggregat 6 for Unterstopfen thresholds 7 is arranged.

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.This in Fig. 2 shown tamping unit 6 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.

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 in Fig. 3 can be seen, 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.

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.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.

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 designed 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.

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 submerge the threshold 7, each of the first pressure chamber 20 of each Beistellantriebes 14 both stuffing lever 12 with respect to a lower portion about the pivot axis 9 are pivoted to each other by applying the stuffing tamp 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.

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.The Beistell- and opening movement of the tamping pickle 11 is superimposed in each case a composite of two vibration amplitudes, preferably sinusoidal vibration, wherein in the direction of the Beistellbewegung 8 (s. Fig. 3 ) acting first oscillation amplitude is generated by a pressure pulse in the third pressure chamber 22. This adds additional and vibrational force in the very important Beistellbewegung for gravel compaction or for the breaking up of crusted gravel.

Die in der Gegenrichtung (in Öffnungsrichtung der Stopfpickel 11) wirksame zweite Schwingungsamplitude wird durch einen Druckimpuls in der zweiten Druckkammer 21 gebildet.The second oscillation amplitude acting 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.

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.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 (7)

  1. A tamping unit having tamping levers (12) which, at a lower end (10), are connected to tamping tines (11) and are movable towards one another in pairs about a pivot axis (9) in a squeezing motion (8), wherein said tamping levers (12) are connected at an upper end (13) to a hydraulic squeezing drive (14) designed for carrying out the squeezing motion (8) and a vibration superimposed thereon, characterized in that
    a first pressure chamber (20) for producing the squeezing motion, a second pressure chamber (21) for producing an opening motion directed opposite to the squeezing motion, and a third pressure chamber (22) for producing vibrations are arranged in a hydraulic cylinder (19) - having a squeezing piston (17) with a piston rod (18) - of the squeezing drive (14).
  2. A tamping unit according to claim 1, characterized in that the third pressure chamber (22) is formed by a cavity (23), arranged in the piston rod 18, which is delimited at the piston side by a second piston rod (25) fastened to a cylinder base (24) of the hydraulic cylinder (19), wherein both piston rods (18, 25) are arranged coaxially to a cylinder axis (26) of the hydraulic cylinder (19).
  3. A tamping unit according to claim 2, characterized in that a piston surface (29) of the second piston rod (25) and a piston surface (30) of the squeezing piston (17) at the piston rod side have equal surface areas.
  4. A tamping unit according to claim 1, characterized in that the first pressure chamber (29) is connected to an energy store (28).
  5. A method of tamping a track, wherein tamping levers (12), connected at a lower end (10) to tamping tines (11) and movable towards one another about a pivot axis (9), are swivelled towards one another in a squeezing motion (8) by actuation of a first pressure chamber (20) and opened in an oppositely-directed opening motion by actuation of a second pressure chamber (21), and wherein a vibration is superimposed on each of said two motions, characterized in that a first vibration impulse effective in the direction of the squeezing motion (8) in each case is produced in a third pressure chamber (22).
  6. A method according to claim 5, characterized in that a second vibration impulse effective in the direction of the opening motion (8) is produced in the second pressure chamber (21).
  7. A method according to claim 6, characterized in that the energy produced by the second vibration impulse and by the fluid displacement, thus caused, from the first pressure chamber (20) is intermediately stored in an energy store (28) and returned again into the first pressure chamber (20) with the actuation of the first vibration impulse.
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 EP3377698A1 (en) 2018-09-26
EP3377698B1 true EP3377698B1 (en) 2019-12-11

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Application Number Title Priority Date Filing Date
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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Publication number Priority date Publication date Assignee Title
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
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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Publication number Publication date
AT517480B1 (en) 2017-02-15
EA034353B1 (en) 2020-01-30
AT517480A4 (en) 2017-02-15
EA201800171A1 (en) 2018-10-31
WO2017084732A8 (en) 2018-04-12
JP2018534453A (en) 2018-11-22
CN108291369B (en) 2020-02-21
CN108291369A (en) 2018-07-17
EP3377698A1 (en) 2018-09-26
US10633801B2 (en) 2020-04-28
ES2769060T3 (en) 2020-06-24
US20180274178A1 (en) 2018-09-27
WO2017084732A1 (en) 2017-05-26
JP6743147B2 (en) 2020-08-19

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