EP2770108A1 - Tamping unit for a rail tamping machine - Google Patents

Tamping unit for a rail tamping machine Download PDF

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Publication number
EP2770108A1
EP2770108A1 EP13160788.9A EP13160788A EP2770108A1 EP 2770108 A1 EP2770108 A1 EP 2770108A1 EP 13160788 A EP13160788 A EP 13160788A EP 2770108 A1 EP2770108 A1 EP 2770108A1
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EP
European Patent Office
Prior art keywords
hydraulic cylinder
tamping
vibration
displacement sensor
control
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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.)
Granted
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EP13160788.9A
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German (de)
French (fr)
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EP2770108B1 (en
Inventor
Bernhard Lichtberger
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HP3 Real GmbH
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System7 Railsupport GmbH
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Application filed by System7 Railsupport GmbH filed Critical System7 Railsupport GmbH
Priority to PL13160788T priority Critical patent/PL2770108T3/en
Priority to US14/769,585 priority patent/US9957668B2/en
Priority to CN201480016782.6A priority patent/CN105189868A/en
Priority to CN201811166525.7A priority patent/CN109577114A/en
Priority to RU2015135381A priority patent/RU2640165C2/en
Priority to PCT/AT2014/050027 priority patent/WO2014127393A1/en
Publication of EP2770108A1 publication Critical patent/EP2770108A1/en
Publication of EP2770108B1 publication Critical patent/EP2770108B1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • 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 tamping unit for a track tamping machine with arranged on a in a Stopfaggregatrahmen height adjustable, arranged carrier, designed as rocker Stopftechnikmaschinefaren whose immersion in a ballast certain lower tufting ends with a vibratory drive in opposite directions drivable and hydraulically to each other bei constructive.
  • Tamping units penetrate with gravel tools the gravel of a track bed in the area between two sleepers (intermediate compartment), in the area of the support of the threshold in the ballast under the rail and compact the ballast by a dynamic vibration of the tamping between the opposable tamping pegs that can be provided. Tamping units can plug one, two or more sleepers in one work cycle ( DE 24 24 829 A ).
  • the movements of a tamping unit include the vertical immersion of the tamping pick in the ballast, the Beistellieri in which the tamping ends are closed to each other and the superimposed dynamic oscillation which causes the actual compaction of the ballast grains.
  • Other known solutions use linear excitation via hydraulic cylinders. Two hydraulic cylinders are mechanically coupled in series. The one hydraulic cylinder performs the Beistellieri, the other the vibratory movement.
  • the size of the resulting vibration is determined mechanically and by the hydraulic excitation.
  • the size of the amplitude can not be adjusted freely.
  • Optimal stop frequencies for compaction are known to be between 25-40 Hz, with penetration of the tamping pick in the ballast with higher frequencies is easier, since only a small immersion shock occurs and thus the stress on the bearings of the tamping unit can be reduced.
  • the tamping units in use today have a very high and costly maintenance. Typically, the units are at least partially overhauled and maintained every season. After 1-2 overhauls, the units must be replaced by new ones.
  • the amplitude decreases due to the elasticity of the hydraulic hoses and thus the compression effect decreases. From various studies it is known that falling Stopfamplituden affect the compression and also reduce the penetration into the ballast.
  • the invention is therefore the object of tamping units of the type described with simple means in such a way that the stability of the vibration drive is significantly increased.
  • the invention solves this problem in that each of the stuffing tools of a Stopfwerkmaschinefares a hydraulic cylinder and a displacement sensor for determining the hydraulic cylinder position are assigned, wherein the hydraulic cylinder form the Beistellantrieb and the vibration drive of the stuffing pick and the control of the hydraulic cylinder wegsensorsignalcommun.
  • a single common hydraulic cylinder is used for the Beistellterrorism and the vibratory movement of at least one stuffing pickle (possibly also of several synchronously driven stuffing pickles of several pairs of stuffing needles).
  • the hydraulic cylinder is a Assigned encoder, for example, always detects the exact exact position of the hydraulic piston. Since no rotating parts are provided in the power stage of the drive in contrast to the prior art, the stability of the vibration drive is considerably improved with the simplest construction.
  • Hydraulic cylinder control valves in particular servo or proportional valves, which are arranged directly on the hydraulic cylinder, are recommended for actuating the hydraulic cylinders.
  • the hydraulic lines should be as short as possible, so that the elasticity, the storage effect (damping) of the hydraulic hoses under the impact load, is kept low.
  • Typical requirements are amplitudes of 3-6 mm at the tamping ends at a maximum frequency of 50 Hz. Compression amplitudes close to the upper limit are better, for example, for loose gravel (after track cleaning and track renewal or new track construction).
  • the current hydraulic cylinder position is detected by the built-in hydraulic cylinder or externally mounted displacement sensor. Any suitable function sensor can be used.
  • the detected position is compared, for example, with a desired position and the respective Hydraulikzylinderan Kunststoffventil with the difference driven according to what a control or regulation is provided.
  • the hydraulic cylinder position can thus be predetermined or regulated by a control / regulation as a function of the displacement sensor signals, wherein in particular a linear Beistellterrorism the hydraulic cylinder, a vibration is superimposed.
  • the control / regulation gives the vibration, the vibration amplitude and the vibration frequency, depending on the height and the auxiliary position the tufting ends before.
  • the setpoint position is specified by an electrical signal course. For this purpose, for example, for a linear Beistellterrorism a linearly increasing voltage (ramp) is specified.
  • the opening width of the tamping unit corresponds to a certain predetermined voltage.
  • the oscillation in turn corresponds to an alternating voltage superimposed on the supply voltage.
  • the amplitude of the AC voltage then corresponds to the vibration amplitude and the frequency of the AC voltage of the stop frequency.
  • the main advantages of the invention are the simple construction, which does not require wear-prone rolling bearings, connecting rods and connecting rod bearings of the coupling of the auxiliary cylinder on the vibration wave and does not require a flywheel.
  • the Stoppffaggregatö Wennsweite ie the distance between the tufting ends, infinitely adjustable and is any free preselection of the stop frequency, for example, a dip of the pimples with 50 Hz for a low insertion shock and a compression at 35 Hz in working position the pimples to reduce wear and of noise, easily possible.
  • a continuous adjustment of the stuffing amplitude and its signal shape allows an optimal adaptation to the respective superstructure conditions. If a control loop is provided, an automatic readjustment of the plug movement takes place in the event of resistance changes by the control loop, thus ensuring that the desired plug amplitudes and frequencies are maintained.
  • the Beistellweg will be specified by the controller / regulation.
  • the control / regulation specifies the oscillation, the oscillation amplitude and the oscillation frequency as a function of the cylinder pressure measured, in particular with a pressure sensor. So can be deduced by a pressure measurement in the hydraulic cylinder on the compaction of the ballast bed.
  • a tamping unit 1 for a tamping machine comprises, inter alia, arranged on a support 2, designed as a swing lever Stopftechnikmaschinepare with Stopftechnikmaschineen 3, whose intended for immersion in a ballast 4 lower tufting ends 5 with a vibratory drive 6 in opposite directions drivable and hydraulically to each other, with a Beistellweg s, bei constitution are.
  • the carrier 2 is guided vertically adjustable in a Stopfaggregatrahmen 7 with guides 8 and displaced with a control cylinder 9 in the desired altitude.
  • the stuffing tools 3 are designed as two-armed levers which are pivotally mounted on the carrier 2. One arm of the respective stuffing tool 3 is formed by a tamping pick 10 and on the other arm engages a hydraulic cylinder 11, which in turn is mounted on the carrier 2 at the other end.
  • Each of the stuffing tools 3 of a pair of stuffing tools are a hydraulic cylinder 11 and a displacement sensor 12 for determining the hydraulic cylinder position assigned, wherein the hydraulic cylinder 11 form the Beistellantrieb as well as the vibration drive for the tamping pick 10 and the control of the hydraulic cylinder 11 takes wegsensorsignaljon.
  • the displacement sensor 12 can thus always be used to determine the exact stroke position of the hydraulic cylinder 11, that is to say the distance between its two articulation points, at one end on the stuffing tool 3 and on the other end on the carrier 2.
  • the displacement sensor 12 and the hydraulic cylinder 11 form a structural unit and the displacement sensor 12 is integrated into the hydraulic cylinder 11.
  • Hydraulikzylinderan horrinsky 13 in particular servo or proportional valves, are provided for actuating the hydraulic cylinder, which are arranged directly on the hydraulic cylinder 11.
  • the supply lines of the hydraulics, so the pump lines and the tank lines are not shown for clarity.
  • the supply of the tamping unit with hydraulic energy via a standard hydraulic unit.
  • the hydraulic cylinder position can be predetermined by a control / regulation 14 as a function of the displacement sensor signals.
  • the control / regulation 14 is connected via control lines 15 to the Hydraulikzylinderan Kunststoffventile 13 and via measuring lines 16 to the displacement sensors 12.
  • the control / regulation 14 can specify the oscillation, that is to say the oscillation amplitude and the oscillation frequency, as a function of the altitude h and the auxiliary position s of the tamping pick 10.
  • the provision s and the vibration excitation of the tamping pick 10 is thus carried out by a hydraulic cylinder, wherein a hydraulic cylinder 11 per tamping 10 is provided or else a hydraulic cylinder 11 may be provided for a plurality of synchronously to be moved tamping 10.
  • Fig. 2 It is shown that a linear Beistellterrorism the hydraulic cylinder 11, a vibration is superimposed.

Abstract

The tamping unit (1) has a height adjustable guided carrier (2) that is arranged in tamping unit main portion and is designed as a rocker arm. The lower ends (5) of tamping unit are plunged into a gravel bed (4), are driven in opposite directions by a vibration drive (6) and are brought next to each other hydraulically. A tamping tool (3) is associated with a hydraulic cylinder (11) and a displacement sensor (12). The vibration drive of the tamping tool and the hydraulic cylinder are controlled based on the displacement sensor signal.

Description

Die Erfindung bezieht sich auf ein Stopfaggregat für eine Gleisstopfmaschine mit auf einem, in einem Stopfaggregatrahmen höhenverstellbar geführten, Träger angeordneten, als Schwinghebel ausgebildeten Stopfwerkzeugpaaren, deren zum Eintauchen in ein Schotterbett bestimmte untere Stopfpickelenden mit einem Schwingungsantrieb gegenläufig antreibbar und hydraulisch zueinander beistellbar sind.The invention relates to a tamping unit for a track tamping machine with arranged on a in a Stopfaggregatrahmen height adjustable, arranged carrier, designed as rocker Stopfwerkzeugpaaren whose immersion in a ballast certain lower tufting ends with a vibratory drive in opposite directions drivable and hydraulically to each other beistellbar.

Stopfaggregate penetrieren mit Stopfwerkzeugen den Schotter eines Gleisbettes im Bereich zwischen zwei Schwellen (Zwischenfach), im Bereich des Auflagers der Schwelle im Schotter unter der Schiene und verdichten den Schotter durch eine dynamische Vibration der Stopfpickel zwischen den zueinander beistellbaren gegenüberliegenden Stopfpickeln. Stopfaggregate können in einem Arbeitszyklus eine, zwei oder mehr Schwellen stopfen ( DE 24 24 829 A ).Tamping units penetrate with gravel tools the gravel of a track bed in the area between two sleepers (intermediate compartment), in the area of the support of the threshold in the ballast under the rail and compact the ballast by a dynamic vibration of the tamping between the opposable tamping pegs that can be provided. Tamping units can plug one, two or more sleepers in one work cycle ( DE 24 24 829 A ).

Die Bewegungen eines Stopfaggregates umfassen das vertikale Eintauchen der Stopfpickel in den Schotter, die Beistellbewegung bei welcher die Stopfpickelenden zueinander geschlossen werden und die überlagerte dynamische Schwingung welche die eigentliche Verdichtung der Schotterkörner bewirkt. Bekannt ist es für die Beistellbewegung Hydraulikzylinder zu verwenden, die über Pleuel mit einer Vibrationswelle mit Exzentrizität verbunden sind und die der Beistellbewegung die vibratorische Schwingung überlagern ( AT 369 455 B ). Diese Vibrationswellen und Pleuel sind über Wälzlager gelagert, die regelmäßiger teurer Wartung bedürfen. Andere bekannte Lösungen verwenden eine lineare Anregung über Hydraulikzylinder. Dabei werden zwei Hydraulikzylinder in Serie mechanisch gekoppelt. Der eine Hydraulikzylinder führt die Beistellbewegung aus, der andere die vibratorische Bewegung. Die Größe der dabei entstehenden Schwingung wird mechanisch und durch die hydraulische Anregung bestimmt. Die Größe der Amplitude kann nicht frei eingestellt werden. Optimale Stopffrequenzen zur Verdichtung liegen bekanntermaßen zwischen 25-40 Hz, wobei ein Eindringen der Stopfpickel in den Schotter mit höheren Frequenzen leichter möglich ist, da nur ein geringerer Eintauchstoß auftritt und damit die Beanspruchung der Lagerungen des Stopfpickelaggregates verringert werden kann.The movements of a tamping unit include the vertical immersion of the tamping pick in the ballast, the Beistellbewegung in which the tamping ends are closed to each other and the superimposed dynamic oscillation which causes the actual compaction of the ballast grains. It is known for the Beistellbewegung to use hydraulic cylinder, which are connected via connecting rods with a vibration wave with eccentricity and which superimpose the Beistellbewegung the vibratory vibration ( AT 369 455 B ). These vibration shafts and connecting rods are mounted on roller bearings, which regularly require more expensive maintenance. Other known solutions use linear excitation via hydraulic cylinders. Two hydraulic cylinders are mechanically coupled in series. The one hydraulic cylinder performs the Beistellbewegung, the other the vibratory movement. The size of the resulting vibration is determined mechanically and by the hydraulic excitation. The size of the amplitude can not be adjusted freely. Optimal stop frequencies for compaction are known to be between 25-40 Hz, with penetration of the tamping pick in the ballast with higher frequencies is easier, since only a small immersion shock occurs and thus the stress on the bearings of the tamping unit can be reduced.

Die heute im Einsatz befindlichen Stopfaggregate weisen einen sehr hohen und kostspieligen Wartungsaufwand auf. Typischerweise werden die Aggregate jede Saison zumindest partiell überholt und gewartet. Nach 1-2 Überholungen müssen die Aggregate durch neue ersetzt werden. Zusätzlich ist es bekannt Stopfaggregate mit rotierenden Vibrationswellen mit Schwungscheibe auszurüsten, damit die Frequenz bei zunehmender Verdichtung des Schotters nicht allzu sehr abfällt. Bekannt ist auch, dass bei der Ansteuerung der Beistellzylinder die Amplitude durch die Elastizität der Hydraulikschläuche abnimmt und damit die Verdichtungswirkung sinkt. Aus verschiedenen Untersuchungen ist bekannt, dass abfallende Stopfamplituden die Verdichtung beeinträchtigen und ebenfalls das Eindringen in den Schotter reduzieren.The tamping units in use today have a very high and costly maintenance. Typically, the units are at least partially overhauled and maintained every season. After 1-2 overhauls, the units must be replaced by new ones. In addition, it is known to equip tamping units with rotating vibration waves with flywheel, so that the frequency does not drop too much with increasing compaction of the ballast. It is also known that in the control of the auxiliary cylinder, the amplitude decreases due to the elasticity of the hydraulic hoses and thus the compression effect decreases. From various studies it is known that falling Stopfamplituden affect the compression and also reduce the penetration into the ballast.

Der Erfindung liegt somit die Aufgabe zugrunde, Stopfaggregate der eingangs geschilderten Art mit einfachen Mitteln derart weiterzubilden, dass die Standfestigkeit des Vibrationsantriebes erheblich erhöht wird.The invention is therefore the object of tamping units of the type described with simple means in such a way that the stability of the vibration drive is significantly increased.

Die Erfindung löst die gestellte Aufgabe dadurch, dass jedem der Stopfwerkzeuge eines Stopfwerkzeugpaares ein Hydraulikzylinder und ein Wegsensor zur Bestimmung der Hydraulikzylinderstellung zugeordnet sind, wobei die Hydraulikzylinder den Beistellantrieb als auch den Schwingungsantrieb der Stopfpickel bilden und die Ansteuerung der Hydraulikzylinder wegsensorsignalabhängig erfolgt.The invention solves this problem in that each of the stuffing tools of a Stopfwerkzeugpaares a hydraulic cylinder and a displacement sensor for determining the hydraulic cylinder position are assigned, wherein the hydraulic cylinder form the Beistellantrieb and the vibration drive of the stuffing pick and the control of the hydraulic cylinder wegsensorsignalabhängig.

Gemäß der Erfindung wird für die Beistellbewegung und die vibratorische Bewegung wenigstens eines Stopfpickels (gegebenenfalls auch von mehreren synchron angetriebenen Stopfpickeln mehrerer Stopfpickelpaare) ein einziger gemeinsamer Hydraulikzylinder verwendet. Dem Hydraulikzylinder ist ein Messgeber zugeordnet, der beispielsweise stets die genaue die genaue Position des Hydraulikkolbens erfasst. Da im Gegensatz zum Stand der Technik keine rotierenden Teile in der Leistungsstufe des Antriebs vorgesehen sind wird die Standfestigkeit des Vibrationsantriebes bei einfachstem Aufbau erheblich verbessert.According to the invention, a single common hydraulic cylinder is used for the Beistellbewegung and the vibratory movement of at least one stuffing pickle (possibly also of several synchronously driven stuffing pickles of several pairs of stuffing needles). The hydraulic cylinder is a Assigned encoder, for example, always detects the exact exact position of the hydraulic piston. Since no rotating parts are provided in the power stage of the drive in contrast to the prior art, the stability of the vibration drive is considerably improved with the simplest construction.

Besonders Robuste, also wenig störanfällige und einfache Konstruktionsverhältnisse ergeben sich, wenn der Wegsensor und der Hydraulikzylinder eine Baueinheit bilden und der Wegsensor insbesondere in den Hydraulikzylinder integriert ist.Particularly robust, so little trouble-prone and simple construction conditions arise when the displacement sensor and the hydraulic cylinder form a structural unit and the displacement sensor is integrated in particular in the hydraulic cylinder.

Zur Betätigung der Hydraulikzylinder empfehlen sich Hydraulikzylinderansteuerventile, insbesondere Servo- oder Proportionalventile, die direkt am Hydraulikzylinder angeordnet sind. Die Hydraulikleitungen sollten so kurz wie möglich sein, damit die Elastizität, die Speicherwirkung (Dämpfung) der Hydraulikschläuche unter der Stoßbelastung, niedrig gehalten wird. Typische Anforderungen sind Amplituden von 3-6 mm an den Stopfpickelenden bei einer maximalen Frequenz von 50 Hz. Verdichtamplituden nahe der oberen Grenze eignen sich beispielsweise für lockeren Schotter (nach Gleisreinigung und Gleisumbau oder Gleisneubau) besser.Hydraulic cylinder control valves, in particular servo or proportional valves, which are arranged directly on the hydraulic cylinder, are recommended for actuating the hydraulic cylinders. The hydraulic lines should be as short as possible, so that the elasticity, the storage effect (damping) of the hydraulic hoses under the impact load, is kept low. Typical requirements are amplitudes of 3-6 mm at the tamping ends at a maximum frequency of 50 Hz. Compression amplitudes close to the upper limit are better, for example, for loose gravel (after track cleaning and track renewal or new track construction).

Zum Stopfen wird die aktuelle Hydraulikzylinderstellung durch den in den Hydraulikzylinder eingebauten oder außen angebauten Wegsensor erfasst. Jeder geeignete, die Funktion übernehmende Messsensor kann verwendet werden. Die erfasste Position wird beispielsweise mit einer Sollposition verglichen und das jeweilige Hydraulikzylinderansteuerventil mit der Differenz entsprechend angesteuert, wozu eine Steuerung bzw. Regelung vorgesehen ist. Die Hydraulikzylinderstellung ist also von einer Steuerung/Regelung in Abhängigkeit der Wegsensorsignale vorgebbar bzw. regelbar, wobei insbesondere einer linearen Beistellbewegung der Hydraulikzylinder eine Schwingung überlagerbar ist.For plugging, the current hydraulic cylinder position is detected by the built-in hydraulic cylinder or externally mounted displacement sensor. Any suitable function sensor can be used. The detected position is compared, for example, with a desired position and the respective Hydraulikzylinderansteuerventil with the difference driven according to what a control or regulation is provided. The hydraulic cylinder position can thus be predetermined or regulated by a control / regulation as a function of the displacement sensor signals, wherein in particular a linear Beistellbewegung the hydraulic cylinder, a vibration is superimposed.

Die Steuerung/Regelung gibt die Schwingung, die Schwingungsamplitude und die Schwingungsfrequenz, in Abhängigkeit von der Höhen- und der Beistelllage der Stopfpickelenden vor. Die Sollposition wird durch einen elektrischen Signalverlauf vorgegeben. Dazu wird beispielsweise für eine lineare Beistellbewegung eine linear ansteigende Spannung (Rampe) vorgegeben. Die Öffnungsweite des Stopfaggregates, der Abstand der Stopfpickelenden eines Stopfpickelpaares, entspricht dabei einer bestimmten vorgegebenen Spannung. Die Schwingung wiederum entspricht einer der Beistellspannung überlagerten Wechselspannung. Die Amplitude der Wechselspannung entspricht dann der Vibrationsamplitude und die Frequenz der Wechselspannung der Stopffrequenz.The control / regulation gives the vibration, the vibration amplitude and the vibration frequency, depending on the height and the auxiliary position the tufting ends before. The setpoint position is specified by an electrical signal course. For this purpose, for example, for a linear Beistellbewegung a linearly increasing voltage (ramp) is specified. The opening width of the tamping unit, the distance between the tufting ends of a tufting pair, corresponds to a certain predetermined voltage. The oscillation in turn corresponds to an alternating voltage superimposed on the supply voltage. The amplitude of the AC voltage then corresponds to the vibration amplitude and the frequency of the AC voltage of the stop frequency.

Die wesentlichen Vorteile der Erfindung sind die einfache Bauweise, die ohne verschleißanfällige Wälzlager, Pleuel und Pleuellagerungen der Ankopplung der Beistellzylinder auf der Vibrationswelle auskommt und keine Schwungscheibe benötigt. Zudem ist die Stopffaggregatöffnungsweite, also der Abstand zwischen den Stopfpickelenden, stufenlos einstellbar und ist eine beliebige freie Vorwahl der Stopffrequenz, beispielsweise ein Eintauchen der Pickel mit 50 Hz für einen geringen Eintauchstoß und ein Verdichten mit 35 Hz in Arbeitsstellung die Pickel zur Verminderung des Verschleißes und des Lärms, problemlos möglich. Eine kontinuierliche Einstellung der Stopfamplitude und deren Signalform (Rechteck, Sinus, Dreieck, Sägezahn) erlaubt eine optimale Anpassung an die jeweiligen Oberbauverhältnisse. Ist ein Regelkreislauf vorgesehen erfolgt eine automatische Nachregelung der Stopfbewegung bei Widerstandsänderungen durch den Regelkreislauf, womit eine Einhaltung der gewünschten Stopfamplituden und Frequenzen sichergestellt ist.The main advantages of the invention are the simple construction, which does not require wear-prone rolling bearings, connecting rods and connecting rod bearings of the coupling of the auxiliary cylinder on the vibration wave and does not require a flywheel. In addition, the Stoppffaggregatöffnungsweite, ie the distance between the tufting ends, infinitely adjustable and is any free preselection of the stop frequency, for example, a dip of the pimples with 50 Hz for a low insertion shock and a compression at 35 Hz in working position the pimples to reduce wear and of noise, easily possible. A continuous adjustment of the stuffing amplitude and its signal shape (rectangle, sine, triangle, sawtooth) allows an optimal adaptation to the respective superstructure conditions. If a control loop is provided, an automatic readjustment of the plug movement takes place in the event of resistance changes by the control loop, thus ensuring that the desired plug amplitudes and frequencies are maintained.

Üblicherweise wird von der Steuerung/Regelung der Beistellweg vorgeben werden. Wenn der Schotter aber schon hoch verdichtet ist, dann wird die Ist-Bewegung von der Soll-Bewegung zwangsweise abweichen. Um den Schotter dann dennoch gezielt verdichten zu können, empfiehlt es sich, wenn die Steuerung/Regelung die Schwingung, die Schwingungsamplitude und die Schwingungsfrequenz, in Abhängigkeit vom, insbesondere mit einem Drucksensor, gemessenen Zylinderdruck vorgibt. So kann durch eine Druckmessung im Hydraulikzylinder auf die Verdichtung des Schotterbettes rückgeschlossen werden.Usually, the Beistellweg will be specified by the controller / regulation. However, if the ballast is already highly compressed, then the actual movement will necessarily deviate from the target movement. However, in order to be able to compress the ballast in a targeted manner, it is advisable for the control / regulation to specify the oscillation, the oscillation amplitude and the oscillation frequency as a function of the cylinder pressure measured, in particular with a pressure sensor. So can be deduced by a pressure measurement in the hydraulic cylinder on the compaction of the ballast bed.

Mit der Erfindung sind verschiedene Betriebsarten der Stopfaggregate oder der Einzelpickelsysteme möglich, wie insbesondere unterschiedliche Frequenz, unterschiedliche Amplituden u. dgl. für verschiedene Stopfpickel. Eine Aufzeichnung der tatsächlichen Wege und der Sollwege des Stopfaggregates ist in einfacher Weise durch Messwerterfassung möglich, womit eine Qualitätskontrolle der erreichten Verdichtung möglich ist. Damit sind auch Aussagen über den Zustand des Schotterbettes (locker, verkrustet, verschmutzt) möglich. Auf eine Änderung der Schotterbettverhältnisse kann unmittelbar und automatisch reagiert werden. So könnte in lockerer Bettung die Beistellgeschwindigkeit zu Beginn erhöht werden und auch die Amplitude vergrößert werden. Wird die Bettung durch das Stopfen dichter können Amplitude und Frequenz stufenlos nachjustiert werden.With the invention, various modes of tamping or the Einzelpickelsysteme are possible, in particular different frequency, different amplitudes u. Like. For various tamping. A record of the actual paths and the desired paths of the tamping unit is possible in a simple manner by measured value recording, whereby a quality control of the achieved compression is possible. Thus, statements about the condition of the ballast bed (loose, encrusted, dirty) are possible. On a change in ballast bed conditions can be reacted immediately and automatically. Thus, in casual bedding the Beistellgeschwindigkeit could be increased at the beginning and the amplitude can be increased. If the bedding becomes denser due to the plug, the amplitude and frequency can be readjusted continuously.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen

Fig. 1
ein erfindungsgemäßes Stopfaggregat in teilgeschnittener Seitenansicht und
Fig. 2
ein Diagramm zur Darstellung der Beistelllage der Stopfwerkzeuge.
In the drawing, the subject invention is shown, for example. Show it
Fig. 1
an inventive tamping unit in a partially sectioned side view and
Fig. 2
a diagram illustrating the addition position of the stuffing tools.

Ein Stopfaggregat 1 für eine Gleisstopfmaschine umfasst unter anderem auf einem Träger 2 angeordnete, als Schwinghebel ausgebildete Stopfwerkzeugpaare mit Stopfwerkzeugen 3, deren zum Eintauchen in ein Schotterbett 4 bestimmte untere Stopfpickelenden 5 mit einem Schwingungsantrieb 6 gegenläufig antreibbar und hydraulisch zueinander, mit einem Beistellweg s, beistellbar sind. Der Träger 2 ist in einem Stopfaggregatrahmen 7 mit Führungen 8 höhenverstellbar geführt und mit einem Stellzylinder 9 in die gewünschte Höhenlage verlagerbar. Die Stopfwerkzeuge 3 sind als zweiarmige Hebel ausgebildet, die am Träger 2 schwenkbar gelagert sind. Ein Arm des jeweiligen Stopfwerkzeuges 3 wird von einem Stopfpickel 10 gebildet und am anderen Arm greift ein Hydraulikzylinder 11 an, der andernends wiederum am Träger 2 gelagert ist.A tamping unit 1 for a tamping machine comprises, inter alia, arranged on a support 2, designed as a swing lever Stopfwerkzeugpaare with Stopfwerkzeugen 3, whose intended for immersion in a ballast 4 lower tufting ends 5 with a vibratory drive 6 in opposite directions drivable and hydraulically to each other, with a Beistellweg s, beistellbar are. The carrier 2 is guided vertically adjustable in a Stopfaggregatrahmen 7 with guides 8 and displaced with a control cylinder 9 in the desired altitude. The stuffing tools 3 are designed as two-armed levers which are pivotally mounted on the carrier 2. One arm of the respective stuffing tool 3 is formed by a tamping pick 10 and on the other arm engages a hydraulic cylinder 11, which in turn is mounted on the carrier 2 at the other end.

Jedem der Stopfwerkzeuge 3 eines Stopfwerkzeugpaares sind ein Hydraulikzylinder 11 und ein Wegsensor 12 zur Bestimmung der Hydraulikzylinderstellung zugeordnet, wobei die Hydraulikzylinder 11 den Beistellantrieb als auch den Schwingungsantrieb für die Stopfpickel 10 bilden und die Ansteuerung der Hydraulikzylinder 11 wegsensorsignalabhängig erfolgt. Mit dem Wegsensor 12 kann somit stets die exakte Hublage des Hydraulikzylinders 11, also der Abstand zwischen seinen beiden Anlenkpunkten, einerends am Stopfwerkzeug 3 und anderends am Träger 2, bestimmt werden. Im Ausführungsbeispiel bilden der Wegsensor 12 und der Hydraulikzylinder 11 eine Baueinheit und ist der Wegsensor 12 in den Hydraulikzylinder 11 integriert.Each of the stuffing tools 3 of a pair of stuffing tools are a hydraulic cylinder 11 and a displacement sensor 12 for determining the hydraulic cylinder position assigned, wherein the hydraulic cylinder 11 form the Beistellantrieb as well as the vibration drive for the tamping pick 10 and the control of the hydraulic cylinder 11 takes wegsensorsignalabhängig. The displacement sensor 12 can thus always be used to determine the exact stroke position of the hydraulic cylinder 11, that is to say the distance between its two articulation points, at one end on the stuffing tool 3 and on the other end on the carrier 2. In the exemplary embodiment, the displacement sensor 12 and the hydraulic cylinder 11 form a structural unit and the displacement sensor 12 is integrated into the hydraulic cylinder 11.

Zur Betätigung der Hydraulikzylinder sind Hydraulikzylinderansteuerventile 13, insbesondere Servo- oder Proportionalventile, vorgesehen, die direkt am Hydraulikzylinder 11 angeordnet sind. Die Versorgungsleitungen der Hydraulik, also die Pumpenleitungen und die Tankleitungen, sind der Übersichtlichkeit halber nicht eingezeichnet. Die Versorgung des Stopfaggregates mit hydraulischer Energie erfolgt über ein übliches Hydraulikaggregat.Hydraulikzylinderansteuerventile 13, in particular servo or proportional valves, are provided for actuating the hydraulic cylinder, which are arranged directly on the hydraulic cylinder 11. The supply lines of the hydraulics, so the pump lines and the tank lines are not shown for clarity. The supply of the tamping unit with hydraulic energy via a standard hydraulic unit.

Die Hydraulikzylinderstellung ist von einer Steuerung/Regelung 14 in Abhängigkeit der Wegsensorsignale vorgebbar. Dazu ist die Steuerung/Regelung 14 über Steuerleitungen 15 an die Hydraulikzylinderansteuerventile 13 und über Messleitungen 16 an die Wegsensoren 12 angeschlossen. Die Steuerung/Regelung 14 kann die Schwingung, also die Schwingungsamplitude und die Schwingungsfrequenz, in Abhängigkeit von der Höhenlage h und der Beistelllage s der Stopfpickel 10 vorgeben. Die Beistellung s und die Schwingungsanregung der Stopfpickel 10 wird somit von einem Hydraulikzylinder vorgenommen, wobei ein Hydraulikzylinder 11 je Stopfpickel 10 vorgesehen ist oder aber auch ein Hydraulikzylinder 11 für mehrere synchron zu bewegende Stopfpickel 10 vorgesehen sein kann. In Fig. 2 ist dargestellt, dass einer linearen Beistellbewegung der Hydraulikzylinder 11 eine Schwingung überlagerbar ist.The hydraulic cylinder position can be predetermined by a control / regulation 14 as a function of the displacement sensor signals. For this purpose, the control / regulation 14 is connected via control lines 15 to the Hydraulikzylinderansteuerventile 13 and via measuring lines 16 to the displacement sensors 12. The control / regulation 14 can specify the oscillation, that is to say the oscillation amplitude and the oscillation frequency, as a function of the altitude h and the auxiliary position s of the tamping pick 10. The provision s and the vibration excitation of the tamping pick 10 is thus carried out by a hydraulic cylinder, wherein a hydraulic cylinder 11 per tamping 10 is provided or else a hydraulic cylinder 11 may be provided for a plurality of synchronously to be moved tamping 10. In Fig. 2 It is shown that a linear Beistellbewegung the hydraulic cylinder 11, a vibration is superimposed.

Claims (7)

Stopfaggregat (1) für eine Gleisstopfmaschine mit auf einem, in einem Stopfaggregatrahmen höhenverstellbar geführten, Träger (2) angeordneten, als Schwinghebel ausgebildeten Stopfwerkzeugpaaren, deren zum Eintauchen in ein Schotterbett (4) bestimmte untere Stopfpickelenden (5) mit einem Schwingungsantrieb (6) gegenläufig antreibbar und hydraulisch zueinander beistellbar sind, dadurch gekennzeichnet, dass jedem der Stopfwerkzeuge (3) eines Stopfwerkzeugpaares ein Hydraulikzylinder (11) und ein Wegsensor (12) zur Bestimmung der Hydraulikzylinderstellung zugeordnet sind, wobei die Hydraulikzylinder (11) den Beistellantrieb als auch den Schwingungsantrieb (6) der Stopfwerkzeuge (3) bilden und die Ansteuerung der Hydraulikzylinder (11) wegsensorsignalabhängig erfolgt.Stopfaggregat (1) for a track tamping machine with arranged on a, in a Stopfaggregatrahmen height adjustable, support (2) arranged as a swing lever Stopfwerkzeugpaaren whose immersion in a ballast bed (4) certain lower tufting ends (5) with a vibration drive (6) in opposite directions drivable and hydraulically to each other beistellbar, characterized in that each of the stuffing tools (3) of a Stopfwerkzeugpaares a hydraulic cylinder (11) and a displacement sensor (12) are assigned for determining the hydraulic cylinder position, wherein the hydraulic cylinder (11) the Beistellantrieb as well as the vibration drive ( 6) of the stuffing tools (3) form and the control of the hydraulic cylinder (11) takes place wegsensorsignalabhängig. Stopfaggregat nach Anspruch 1, dadurch gekennzeichnet, dass der Wegsensor (12) und der Hydraulikzylinder (11) eine Baueinheit bilden und der Wegsensor (12) insbesondere in den Hydraulikzylinder (11) integriert ist.Tamping unit according to claim 1, characterized in that the displacement sensor (12) and the hydraulic cylinder (11) form a structural unit and the displacement sensor (12) in particular in the hydraulic cylinder (11) is integrated. Stopfaggregat nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zur Betätigung der Hydraulikzylinder (11) Hydraulikzylinderansteuerventile (13), insbesondere Servo- oder Proportionalventile, vorgesehen sind, die direkt am Hydraulikzylinder (11) angeordnet sind.Stopfaggregat according to claim 1 or 2, characterized in that for actuating the hydraulic cylinder (11) Hydraulikzylinderansteuerventile (13), in particular servo or proportional valves, are provided which are arranged directly on the hydraulic cylinder (11). Stopfaggregat nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Hydraulikzylinderstellung von einer Steuerung/Regelung (14) in Abhängigkeit der Wegsensorsignale vorgebbar ist.Stuffing unit according to one of claims 1 to 3, characterized in that the hydraulic cylinder position of a control / regulation (14) in dependence of the displacement sensor signals can be predetermined. Stopfaggregat nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass einer linearen Beistellbewegung der Hydraulikzylinder (11) eine Schwingung überlagerbar ist.Tamping unit according to one of claims 1 to 4, characterized in that a linear Beistellbewegung the hydraulic cylinder (11) is a vibration superimposed. Stopfaggregat nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Steuerung/Regelung (14) die Schwingung, die Schwingungsamplitude und die Schwingungsfrequenz, in Abhängigkeit von der Höhen- und der Beistelllage (±h, ±s) der Stopfpickel vorgibt.Tamping unit according to claim 4 or 5, characterized in that the control / regulation (14) specifies the vibration, the vibration amplitude and the oscillation frequency, depending on the height and the auxiliary position (± h, ± s) of the tamping pick. Stopfaggregat nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass die Steuerung/Regelung (14) die Schwingung, die Schwingungsamplitude und die Schwingungsfrequenz, in Abhängigkeit vom, insbesondere mit einem Drucksensor, gemessenen Zylinderdruck vorgibt.Stuffing unit according to one of claims 4 to 6, characterized in that the control / regulation (14) specifies the oscillation, the oscillation amplitude and the oscillation frequency, as a function of, in particular with a pressure sensor, measured cylinder pressure.
EP13160788.9A 2013-02-22 2013-03-25 Tamping unit for a rail tamping machine Active EP2770108B1 (en)

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PL13160788T PL2770108T3 (en) 2013-02-22 2013-03-25 Tamping unit for a rail tamping machine
RU2015135381A RU2640165C2 (en) 2013-02-22 2014-01-22 Stabilizing unit for sleeper packing machine
CN201480016782.6A CN105189868A (en) 2013-02-22 2014-01-22 Tamping unit for a track tamping machine
CN201811166525.7A CN109577114A (en) 2013-02-22 2014-01-22 Tamping machine for sleeper-tamping machine
US14/769,585 US9957668B2 (en) 2013-02-22 2014-01-22 Tamping unit for a track tamping machine
PCT/AT2014/050027 WO2014127393A1 (en) 2013-02-22 2014-01-22 Tamping unit for a track tamping machine

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WO2020052879A1 (en) * 2018-09-13 2020-03-19 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Method and apparatus for tamping sleepers of a track
WO2020057865A1 (en) * 2018-09-18 2020-03-26 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Tamping unit and method for tamping sleepers of a track
EA039562B1 (en) * 2018-09-18 2022-02-10 Плассер Энд Тойрер Экспорт Фон Банбаумашинен Гмбх Tamping unit and method for tamping sleepers of a track
WO2020083596A1 (en) * 2018-10-24 2020-04-30 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Method and device for compacting a ballast bed
WO2022087643A1 (en) 2020-10-28 2022-05-05 Hp3 Real Gmbh Tamping unit for a track-tamping machine
AT524403A1 (en) * 2020-10-28 2022-05-15 Hp3 Real Gmbh Tamping unit for a track tamping machine

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AT513973A4 (en) 2014-09-15
CN105189868A (en) 2015-12-23
AT513973B1 (en) 2014-09-15
CN109577114A (en) 2019-04-05
PL2770108T3 (en) 2021-11-29
EP2770108B1 (en) 2021-05-05
RU2640165C2 (en) 2017-12-26
US9957668B2 (en) 2018-05-01
WO2014127393A1 (en) 2014-08-28
RU2015135381A (en) 2017-03-28
ES2879282T3 (en) 2021-11-22
US20160010287A1 (en) 2016-01-14

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