EP0616077B1 - Tamping machine for the compaction of railway ballast - Google Patents

Tamping machine for the compaction of railway ballast Download PDF

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Publication number
EP0616077B1
EP0616077B1 EP94890036A EP94890036A EP0616077B1 EP 0616077 B1 EP0616077 B1 EP 0616077B1 EP 94890036 A EP94890036 A EP 94890036A EP 94890036 A EP94890036 A EP 94890036A EP 0616077 B1 EP0616077 B1 EP 0616077B1
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EP
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Prior art keywords
machine
track
designed
flanged rollers
axial direction
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Expired - Lifetime
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EP94890036A
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German (de)
French (fr)
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EP0616077A1 (en
Inventor
Josef Theurer
Wilhelm Praschl
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Franz Plasser Bahnbaumaschinen Industrie GmbH
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Franz Plasser Bahnbaumaschinen Industrie GmbH
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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

Definitions

  • the invention relates to a machine for compacting the ballast bedding of a track with a machine frame supported on rail bogies and a height-adjustable stabilization unit connected to it, which can be displaced by vibrators in vibrations running horizontally and perpendicular to the machine longitudinal direction and can be moved by track rollers, the distance of which is perpendicular to the machine longitudinal direction can be changed by means of a spreading drive, a cylinder tube with a double-acting piston rod being provided as the spreading drive, which is connected to an axis of one of the flanged rollers.
  • a track stabilizer coupled to a tamping machine is known from US Pat. No. 4,046,079.
  • This is equipped with a height-adjustable stabilization unit between its rail bogies.
  • This can be moved on the track via flanged wheels and can be positively engaged with the track with the help of roller pivots that can be swiveled to the side.
  • horizontal vibrations perpendicular to the machine longitudinal direction are transmitted to the track under the influence of a static load.
  • the above-mentioned flanged rollers of the stabilization unit are pressed onto the inside of the rail head with the aid of spreading drives designed as a cylinder-piston drive, with the play of the track being switched off.
  • the object of the present invention is to create a machine of the type described in the introduction, the stabilizing unit of which can also be used in switches.
  • the expansion drive designed as a multi-position cylinder has, in addition to the first cylinder tube mentioned, a second cylinder tube arranged behind it in the axial direction, the associated first and second piston rods each having an adjacent axis the opposite to each other with respect to the axial direction flanged rollers, and wherein further one of the two axes connected to the expansion drive is axially displaceably mounted in a bearing of an aggregate housing, while the other axis is rigidly fixed in the bearing.
  • the machine 1 shown in FIG. 1 and generally also referred to as a track stabilizer for compacting the ballast bed of a track 2 consists of a machine frame 4 supported on rail bogies 3, to which an energy unit 5 with a travel drive 6 and driving cabins 7 are assigned. Between the two rail carriages 3 arranged at the ends and below the machine frame 4, two stabilizing units 9 which are height-adjustable by drives 8 are provided.
  • a reference system 10 serves to control the lowering of the track.
  • the stabilization unit 9 rests on rails 12 of the track 2 by means of (four in total) flanged wheels 11.
  • two flanged rollers 11 lying opposite one another in the cross-machine direction are connected to a hydraulic spreading drive 13.
  • Two vibrators 15 designed as eccentric drives are mounted in a unit housing 14 connected to the drives 8. These are designed to generate vibrations running in the cross-machine direction and parallel to the axes of rotation 16 of the flanged rollers 11.
  • roller tongs 17 are mounted on the unit housing 14 so as to be pivotable about an axis 18 running in the machine longitudinal direction. This pivoting takes place by means of a hydraulic drive 19.
  • a roller table 21 rotatable about an axis 20 is provided.
  • Each expansion drive 13 is composed of two cylinder tubes 22, 23 arranged one behind the other in the axial direction, each with a first and a second piston rod 24, 25, forming a common structural unit or a so-called multi-position cylinder.
  • Each of the two piston rods 24, 25 is connected in an articulated manner to an adjacent axis 26 and fastened to a flange roller 11. While the axis 26 shown in FIG. 2 on the right half of the figure is mounted in a bearing 27 in the direction of the axis of rotation 16, the axis 26 visible on the left half of the figure is rigidly connected to the bearing 27.
  • the stroke length of the two piston rods 24, 25 is of different lengths.
  • the stroke length of the first piston rod 24 is 15 mm and that of the second piston rod 45 mm. 3
  • the piston rods 24, 25 are retracted, so that the smallest possible track width of 1420 mm results for the flange rollers 11. This track width is provided for placing the stabilization unit 9 on the rails 12 (single iron).
  • both piston rods 24, 25 are extended, the track dimension resulting from the existing track gauge and the elasticity of the rail fastening. This means that the flanged wheels 11 regardless of possible track width errors u. The like. Are constantly pressed against the inside head flanks of the rails 12.
  • both roller tongs 17 of each stabilization unit 9 are pivoted downwards, ie. H. engaged with the rails 12. Assuming that the machine 1 is moved in the direction shown by the arrow 29, the right roller tongs 17 of both stabilizing units 9 are swiveled up immediately before a switch tongue 30 or an outer strand 31 of a branch track 32 is reached. At the same time, the spreading drives 13 acted on such that the piston rods 25 are retracted with the longer stroke (see position Fig. 4).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Ticket-Dispensing Machines (AREA)
  • Transplanting Machines (AREA)
  • Crushing And Grinding (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Road Paving Machines (AREA)

Abstract

A tamping machine (1) for the compaction of a railway (2) ballast consists of a machine frame (4), supported on rail running gear, and of a stabilisation assembly (9) connected to said machine frame so as to be adjustable in height. Said stabilisation assembly can be caused to oscillate horizontally as well as vertically with respect to the machine longitudinal direction by means of vibrators (15) and is designed to be able to travel on tracks via flanged rollers (11). The mutual distance of the flanged rollers (11) perpendicularly to the machine longitudinal direction can be varied by means of a spreading drive (13). The latter is designed as a multi-position cylinder comprising a first and a second cylinder tube (22, 23) arranged one behind the other in the axial direction and having respectively a first and a second, double-acting piston rod (24, 25). The latter is connected in an articulated fashion to an adjoining axle (26) of one of the flanged rollers (11) located opposite one another with respect to the axial direction. <IMAGE>

Description

Die Erfindung betrifft eine Maschine zum Verdichten der Schotterbettung eines Gleises mit einem auf Schienenfahrwerken abgestützten Maschinenrahmen und einem höhenverstellbar mit diesem verbundenen Stabilisationsaggregat, das durch Vibratoren in horizontal sowie senkrecht zur Maschinenlängsrichtung verlaufende Schwingungen versetzbar und über Spurkranzrollen gleisverfahrbar ist, deren senkrecht zur Maschinenlängsrichtung verlaufender Abstand zueinander mittels eines Spreizantriebes veränderbar ist, wobei als Spreizantrieb ein Zylinderrohr mit einer doppelt wirksamen Kolbenstange vorgesehen ist, die mit einer Achse einer der Spurkranzrollen verbunden ist.The invention relates to a machine for compacting the ballast bedding of a track with a machine frame supported on rail bogies and a height-adjustable stabilization unit connected to it, which can be displaced by vibrators in vibrations running horizontally and perpendicular to the machine longitudinal direction and can be moved by track rollers, the distance of which is perpendicular to the machine longitudinal direction can be changed by means of a spreading drive, a cylinder tube with a double-acting piston rod being provided as the spreading drive, which is connected to an axis of one of the flanged rollers.

Durch die US 4 046 079 ist ein mit einer Stopfmaschine gekuppelter Gleisstabilisator bekannt. Dieser ist zwischen seinen Schienenfahrwerken mit einem höhenverstellbaren Stabilisationsaggregat ausgestattet. Dieses ist über Spurkranzrollen am Gleis verfahrbar und mit Hilfe von seitlich verschwenkbaren Rollenzangen formschlüssig mit dem Gleis in Eingriff bringbar. In Verbindung mit Vibratoren werden unter Einwirkung einer statischen Auflast horizontale, senkrecht zur Maschinenlängsrichtung verlaufende Schwingungen auf das Gleis übertragen. Dabei werden die genannten Spurkranzrollen des Stabilisationsaggregates mit Hilfe von - als Zylinder-Kolben-Antrieb ausgebildeten - Spreizantrieben unter Ausschaltung des Spurspiels an die Schienenkopfinnenflanken angepreßt.A track stabilizer coupled to a tamping machine is known from US Pat. No. 4,046,079. This is equipped with a height-adjustable stabilization unit between its rail bogies. This can be moved on the track via flanged wheels and can be positively engaged with the track with the help of roller pivots that can be swiveled to the side. In connection with vibrators, horizontal vibrations perpendicular to the machine longitudinal direction are transmitted to the track under the influence of a static load. The above-mentioned flanged rollers of the stabilization unit are pressed onto the inside of the rail head with the aid of spreading drives designed as a cylinder-piston drive, with the play of the track being switched off.

Die Aufgabe der vorliegenden Erfindung liegt nun in der Schaffung einer Maschine der eingangs beschriebenen Art, deren Stabilisationsaggregat auch in Weichen problemlos einsetzbar ist.The object of the present invention is to create a machine of the type described in the introduction, the stabilizing unit of which can also be used in switches.

Diese Aufgabe wird erfindungsgemäß bei der einleitend beschriebenen Maschine dadurch gelöst, daß der als Mehrstellungszylinder ausgebildete Spreizantrieb zusätzlich zum genannten, ersten Zylinderrohr ein in Achsrichtung hinter diesem angeordnetes, zweites Zylinderrohr aufweist, wobei die diesen zugeordnete erste bzw. zweite Kolbenstange jeweils mit einer angrenzenden Achse einer der bezüglich der Achsrichtung einander gegenüberliegenden Spurkranzrollen gelenkig verbunden ist, und wobei ferner eine der beiden mit dem Spreizantrieb verbundenen Achsen in Achsrichtung verschiebbar in einem Lager eines Aggregatgehäuses gelagert ist, während die andere Achse starr im Lager befestigt ist.This object is achieved according to the invention in the machine described in the introduction in that the expansion drive designed as a multi-position cylinder has, in addition to the first cylinder tube mentioned, a second cylinder tube arranged behind it in the axial direction, the associated first and second piston rods each having an adjacent axis the opposite to each other with respect to the axial direction flanged rollers, and wherein further one of the two axes connected to the expansion drive is axially displaceably mounted in a bearing of an aggregate housing, while the other axis is rigidly fixed in the bearing.

Mit einer derartigen Ausbildung des Spreizantriebes besteht die vorteilhafte Möglichkeit, durch unterschiedliche Stellungen der Kolbenstangen zueinander die Spurweite der Spurkranzrollen in Abhängigkeit von den Einsatzbedir gungen rasch und problemlos zu verändern. Es sind nunmehr drei unterschiedliche Spurweiten wählbar, von denen die mittlere einen ungehinderter Einsatz des Stabilisationsaggregates in Weichen unter Vermeidung einer Entgleisungs- oder Falschfahrgefahr ermöglicht. Mit der kleinsten Spurweite wird das Aufsetzen des Stabilisationsaggregates auf das Gleis für den Arbeitseinsatz wesentlich vereinfacht. Die dritte, in der Spurweite nicht fixierte Stellung ist für den normalen Arbeitseinsatz im Streckenbereich vorgesehen Gleichzeitig gewährleistet die starre Befestigung der einen Achse im Gehäu selager die optimale und sichere Übertragung der Vibrationen auf das zu stabilisierende Gleis bei möglichst geringem Verschleiß des Aggregates.With such a design of the expansion drive, there is the advantageous possibility of changing the track width of the flanged wheels quickly and easily by different positions of the piston rods relative to one another depending on the application conditions. Three different track gauges can now be selected, the middle one of which enables the stabilization unit to be used unhindered in switches, avoiding the risk of derailment or wrong-way driving. With the smallest track width, placing the stabilization unit on the track for work is considerably simplified. The third position, which is not fixed in the track gauge, is intended for normal work in the track area.At the same time, the rigid attachment of one axle in the housing bearing ensures optimal and safe transmission of vibrations to the track to be stabilized with the least possible wear on the unit.

Weitere vorteilhafte Ausgestaltungen der erfindungsgemäßen Maschine ergeben sich aus den Unteransprüchen.Further advantageous refinements of the machine according to the invention result from the subclaims.

Im folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben.The invention is described in more detail below with reference to an embodiment shown in the drawing.

Es zeigen:

  • Fig. 1 eine Seitenansicht einer Maschine zum Verdichten der Schotterbettung eines Gleises mit in horizontale Schwingungen versetzbaren Stabilisationsaggregaten,
  • Fig. 2 einen vergrößerten Querschnitt durch die Maschine gemäß der Schnittlinie 11 in Fig. 1 mit einer Ansicht eines einen Spreizantrieb aufweisenden Stabilisationsaggregates,
  • Fig. 3, 4 und 5 jeweils eine schematische Darstellung des Spreizantriebes in verschiedenen Kolbenstellungen, und
  • Fig. 6 eine schematische Darstellung einer Weiche.
Show it:
  • 1 is a side view of a machine for compacting the ballast bedding of a track with stabilizing units that can be set into horizontal vibrations,
  • 2 shows an enlarged cross section through the machine according to section line 11 in FIG. 1 with a view of a stabilizing unit having an expansion drive,
  • 3, 4 and 5 each show a schematic representation of the expansion drive in different piston positions, and
  • Fig. 6 is a schematic representation of a switch.

Die in Fig. 1 ersichtliche und allgemein auch als Gleisstabilisator bezeichnete Maschine 1 zum Verdichten der Schotterbettung eines Gleises 2 besteht aus einem auf Schienenfahrwerken 3 abgestützten Maschinenrahmen 4, dem eine Energieeinheit 5 mit einem Fahrantrieb 6 sowie Fahrkabinen 7 zugeordnet sind. Zwischen den beiden endseitig angeordneten Schienenfahrwerken 3 und unterhalb des Maschinenrahmens 4 sind zwei durch Antriebe 8 höhenverstellbare Stabilisationsaggregate 9 vorgesehen. Zur Kontrolle der Gleisabsenkung dient ein Bezugsystem 10.The machine 1 shown in FIG. 1 and generally also referred to as a track stabilizer for compacting the ballast bed of a track 2 consists of a machine frame 4 supported on rail bogies 3, to which an energy unit 5 with a travel drive 6 and driving cabins 7 are assigned. Between the two rail carriages 3 arranged at the ends and below the machine frame 4, two stabilizing units 9 which are height-adjustable by drives 8 are provided. A reference system 10 serves to control the lowering of the track.

Wie in Fig. 2 ersichtlich, liegt das Stabilisationsaggregat 9 durch (insgesamt vier) Spurkranzrollen 11 auf Schienen 12 des Gleises 2 auf. Jeweils zwei in Maschinenquerrichtung einander gegenüberliegende Spurkranzrollen 11 sind mit einem hydraulischen Spreizantrieb 13 verbunden. In einem mit den Antrieben 8 verbundenen Aggregatgehäuse 14 sind zwei als Exzenterantriebe ausgebildete Vibratoren 15 gelagert. Diese sind zur Erzeugung von in Maschinenquerrichtung sowie parallel zu Rotationsachsen 16 der Spurkranzrollen 11 verlaufenden Schwingungen ausgebildet. Zwischen den beiden jeweils einer Schiene 12 zugeordneten Spurkranzrollen 11 ist eine sogenannte Rollzange 17 um eine in Maschinenlängsrichtung verlaufende Achse 18 verschwenkbar am Aggregatgehäuse 14 gelagert. Diese Verschwenkung erfolgt durch einen hydraulischen Antrieb 19. Am unteren Ende jeder Rollzange 17 ist ein um eine Achse 20 rotierbarer Rollteller 21 vorgesehen.As can be seen in FIG. 2, the stabilization unit 9 rests on rails 12 of the track 2 by means of (four in total) flanged wheels 11. In each case two flanged rollers 11 lying opposite one another in the cross-machine direction are connected to a hydraulic spreading drive 13. Two vibrators 15 designed as eccentric drives are mounted in a unit housing 14 connected to the drives 8. These are designed to generate vibrations running in the cross-machine direction and parallel to the axes of rotation 16 of the flanged rollers 11. Between the two wheel flange rollers 11, each assigned to a rail 12, so-called roller tongs 17 are mounted on the unit housing 14 so as to be pivotable about an axis 18 running in the machine longitudinal direction. This pivoting takes place by means of a hydraulic drive 19. At the lower end of each roller tongs 17, a roller table 21 rotatable about an axis 20 is provided.

Jeder Spreizantrieb 13 setzt sich unter Bildung einer gemeinsamen Baueinheit bzw. eines sogenannten Mehrstellungszylinders aus zwei in Achsrichtung hintereinander angeordneten Zylinderrohren 22,23 mit jeweils einer ersten bzw. einer zweiten Kolbenstange 24,25 zusammen. Jede der beiden Kolbenstangen 24,25 ist mit einer angrenzenden und an einer Spurkranzrolle 11 befestigten Achse 26 gelenkig verbunden. Während die in Fig. 2 auf der rechten Bildhälfte dargestellte Achse 26 in Richtung der Rotationsachse 16 verschiebbar in einem Lager 27 gelagert ist, ist die auf der linken Bildhälfte ersichtliche Achse 26 starr mit dem Lager 27 verbunden.Each expansion drive 13 is composed of two cylinder tubes 22, 23 arranged one behind the other in the axial direction, each with a first and a second piston rod 24, 25, forming a common structural unit or a so-called multi-position cylinder. Each of the two piston rods 24, 25 is connected in an articulated manner to an adjacent axis 26 and fastened to a flange roller 11. While the axis 26 shown in FIG. 2 on the right half of the figure is mounted in a bearing 27 in the direction of the axis of rotation 16, the axis 26 visible on the left half of the figure is rigidly connected to the bearing 27.

Wie aus den Figuren 3 bis 5 hervorgeht ist die Hublänge der beiden Kolbenstangen 24,25 unterschiedlich lang ausgebildet. Die Hublänge der ersten Kolbenstange 24 beträgt 15 mm und die der zweiten Kolbenstange 45 mm. In Fig. 3 sind die Kolbenstangen 24,25 eingefahren, sodaß sich die kleinstmögliche Spurweite von 1420 mm für die Spurkranzrollen 11 ergibt. Diese Spurweite ist für das Aufsetzen des Stabilisationsaggregates 9 auf die Schienen 12 (Eingleisen) vorgesehen.As can be seen from FIGS. 3 to 5, the stroke length of the two piston rods 24, 25 is of different lengths. The stroke length of the first piston rod 24 is 15 mm and that of the second piston rod 45 mm. 3, the piston rods 24, 25 are retracted, so that the smallest possible track width of 1420 mm results for the flange rollers 11. This track width is provided for placing the stabilization unit 9 on the rails 12 (single iron).

In der Darstellung gemäß Fig. 4 ist die einen längeren Kolbenhub aufweisende zweite Kolbenstange 25 eingefahren, während die gegenüberliegende erste Kolbenstange 24 ausgefahren ist. Damit ergibt sich eine Normalspurweite von 1435 mm. Diese Stellung eignet sich, wie noch zu Fig. 6 näher beschrieben wird, für den Arbeitseinsatz in Weichenabschnitten.4, the second piston rod 25 having a longer piston stroke is retracted, while the opposite first piston rod 24 is extended. This results in a standard track width of 1435 mm. As will be described in more detail in relation to FIG. 6, this position is suitable for use in switch sections.

In Fig. 5 sind beide Kolbenstangen 24,25 ausgefahren, wobei sich das Spurmaß aus der vorhandenen Gleisspurweite und der Elastizität der Schienenbefestigung ergibt. Das heißt, daß die Spurkranzrollen 11 unabhängig von eventuellen Spurweitenfehlern u. dgl. ständig an die innen gelegenen Kopfflanken der Schienen 12 angepreßt werden.5, both piston rods 24, 25 are extended, the track dimension resulting from the existing track gauge and the elasticity of the rail fastening. This means that the flanged wheels 11 regardless of possible track width errors u. The like. Are constantly pressed against the inside head flanks of the rails 12.

Vor Erreichen einer in Fig. 6 dargestellten Weiche 28 sind beide Rollzangen 17 jedes Stabilisationsaggregates 9 nach unten verschwenkt, d. h. mit den Schienen 12 in Eingriff gebracht. Unter der Annahme, daß die Maschine 1 in der durch den Pfeil 29 dargestellten Richtung verfahren wird, erfolgt unmittelbar vor Erreichen einer Weichenzunge 30 bzw. eines Außenstranges 31 eines Abzweiggleises 32 ein Hochschwenken der rechten Rollzangen 17 beider Stabilisationsaggregate 9. Gleichzeitig werden auch die Spreizantriebe 13 derart beaufschlagt, daß die Kolbenstangen 25 mit dem längeren Hub eingefahren werden (siehe Position Fig. 4). Damit erfolgt über die nach wie vor vorhandene formschlüssige Verbindung zwischen Stabilisationsaggregat 9 und linker Schiene 12 eine Übertragung der horizontalen Schwingungen, während die rechten Spurkranzrollen 11 im normalüblichen Spurspiel von der Innenkante der rechten Schiene 12 distanziert sind. Unmittelbar nach der Weichenzunge 30 können die rechten Rollzangen 17 wiederum mit der rechten Schiene 12 in Eingriff gebracht werden, gleichzeitig erfolgt auch wiederum ein Ausfahren der linken, einen längeren Kolbenhub aufweisenden Kolbenstangen 25 (siehe Position Fig. 5). Unmittelbar vor Erreichen des Herzstückes 33 wiederholt sich der soeben beschriebene Vorgang für eine Weichendurcharbeitung, indem die rechten Rollzangen 17 hochgeschwenkt und die Kolbenstangen 25 der Spreizantriebe 13 eingefahren werden.Before reaching a switch 28 shown in FIG. 6, both roller tongs 17 of each stabilization unit 9 are pivoted downwards, ie. H. engaged with the rails 12. Assuming that the machine 1 is moved in the direction shown by the arrow 29, the right roller tongs 17 of both stabilizing units 9 are swiveled up immediately before a switch tongue 30 or an outer strand 31 of a branch track 32 is reached. At the same time, the spreading drives 13 acted on such that the piston rods 25 are retracted with the longer stroke (see position Fig. 4). This results in a transmission of the horizontal vibrations via the still present positive connection between the stabilizing unit 9 and the left rail 12, while the right flanged rollers 11 are spaced apart from the inner edge of the right rail 12 in the normal way of tracking. Immediately after the switch tongue 30, the right roller tongs 17 can again be brought into engagement with the right rail 12, at the same time the left piston rods 25, which have a longer piston stroke, are also extended (see position FIG. 5). Immediately before reaching the centerpiece 33, the process just described is repeated for working through the switch by pivoting the right roller tongs 17 up and retracting the piston rods 25 of the expansion drives 13.

Claims (4)

  1. A machine for consolidating the ballast bed of a track, comprising a machine frame (4) supported on on-track undercarriages (3) and a stabilizer unit (9) which is connected for vertical adjustment to the said machine frame and which, by means of vibrators (15), may be set vibrating horizontally and perpendicularly to the longitudinal direction of the machine, and which is designed for mobility on the track on flanged rollers (11) whose distance apart, extending perpendicularly to the longitudinal direction of the machine, is variable by means of a spreading mechanism (13), the spreading mechanism being in the form of a cylindrical tube (22) having a double-action piston rod which is connected to an axle of one of the flanged rollers, characterized in that the spreading mechanism (13) which is designed as a multiple position cylinder comprises, in addition to the said first cylindrical tube (22), a second cylindrical tube (23) arranged following the said first cylindrical tube in the axial direction, each of the first and second piston rods (24,25) associated therewith being connected in an articulated manner to an adjoining axle (26) of one of the flanged rollers (11) situated opposite one another with respect to the axial direction, and one of the two axles (26) connected to the spreading mechanism (13) further being mounted for displacement in the axial direction in a bearing (27) of an auxiliary housing (14) while the other axle (26) is rigidly fixed in the bearing (27).
  2. A machine according to claim 1, characterized in that the two cylindrical tubes (22,23) are arranged coaxially and are joined together to form a common structural unit.
  3. A machine according to claim 1 or 2, characterized in that the lengths of stroke of the two piston rods (24,25) are designed to be different.
  4. A machine according to claim 1, 2 or 3, characterized in that the length of stroke of the first piston rod (24) is 15 mm and that of the second piston rod (25) is 45 mm.
EP94890036A 1993-03-17 1994-02-10 Tamping machine for the compaction of railway ballast Expired - Lifetime EP0616077B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT532/93 1993-03-17
AT53293 1993-03-17

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EP0616077A1 EP0616077A1 (en) 1994-09-21
EP0616077B1 true EP0616077B1 (en) 1997-08-13

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US (1) US5419259A (en)
EP (1) EP0616077B1 (en)
JP (1) JP3267793B2 (en)
CN (1) CN1058310C (en)
AT (1) ATE156880T1 (en)
AU (1) AU673577B2 (en)
CZ (1) CZ37994A3 (en)
DE (1) DE59403690D1 (en)
FI (1) FI108246B (en)
HU (1) HU214571B (en)
PL (1) PL173316B1 (en)
RU (1) RU2071522C1 (en)
SK (1) SK280838B6 (en)

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CZ279540B6 (en) 1995-05-17
CN1058310C (en) 2000-11-08
PL173316B1 (en) 1998-02-27
HUT68012A (en) 1995-05-29
FI108246B (en) 2001-12-14
HU214571B (en) 1998-04-28
AU5779694A (en) 1994-09-22
CN1092834A (en) 1994-09-28
FI941239A (en) 1994-09-18
US5419259A (en) 1995-05-30
CZ37994A3 (en) 1995-05-17
SK22494A3 (en) 1995-04-12
AU673577B2 (en) 1996-11-14
DE59403690D1 (en) 1997-09-18
JP3267793B2 (en) 2002-03-25
SK280838B6 (en) 2000-08-14
RU2071522C1 (en) 1997-01-10
JPH06299502A (en) 1994-10-25
FI941239A0 (en) 1994-03-16
ATE156880T1 (en) 1997-08-15
EP0616077A1 (en) 1994-09-21
HU9400711D0 (en) 1994-06-28

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