WO2024121053A1 - Machine de bourrage destinée au bourrage de traverses d'une voie ferrée - Google Patents

Machine de bourrage destinée au bourrage de traverses d'une voie ferrée Download PDF

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Publication number
WO2024121053A1
WO2024121053A1 PCT/EP2023/084115 EP2023084115W WO2024121053A1 WO 2024121053 A1 WO2024121053 A1 WO 2024121053A1 EP 2023084115 W EP2023084115 W EP 2023084115W WO 2024121053 A1 WO2024121053 A1 WO 2024121053A1
Authority
WO
WIPO (PCT)
Prior art keywords
tamping
machine
frame
satellite
unit
Prior art date
Application number
PCT/EP2023/084115
Other languages
German (de)
English (en)
Inventor
Nikolaus MATZINGER
Original Assignee
Plasser & Theurer, Export von Bahnbaumaschinen, Gesellschaft m.b.H.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plasser & Theurer, Export von Bahnbaumaschinen, Gesellschaft m.b.H. filed Critical Plasser & Theurer, Export von Bahnbaumaschinen, Gesellschaft m.b.H.
Publication of WO2024121053A1 publication Critical patent/WO2024121053A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines
    • E01B27/17—Sleeper-tamping machines combined with means for lifting, levelling or slewing the track
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • 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 machine for tamping sleepers of a track, with a machine frame supported on rail chassis and a satellite frame arranged between the rail chassis, which is supported at the rear on its own rail chassis with respect to a working direction and is connected to the machine frame at the front via a frame guide so as to be longitudinally displaceable and on which a tamping unit is arranged between the own rail chassis and the frame guide, wherein the satellite frame can be supported relative to the machine frame by means of a support device.
  • a tamping machine of this type for continuous operation is known from AT 413 554 B.
  • a longitudinally movable satellite is arranged on a main machine, the satellite comprising a tamping unit and a lifting and straightening unit.
  • the main machine travels continuously with rail carriages along a track to be tamped.
  • the satellite moves cyclically from sleeper to sleeper in the working direction, with only the satellite being stopped for the duration of a tamping process. In this way, the entire mass of the tamping machine does not have to be cyclically braked and accelerated again.
  • the satellite comprises its own rail carriage, above which a support device is arranged to support the satellite relative to the machine frame. This is intended to prevent the satellite from lifting off in the area of the rail carriage when the tamping picks of the tamping unit are immersed in a ballast bed. Description of the invention
  • the invention is based on the object of improving a tamping machine of the type mentioned at the outset in such a way that an optimal tamping process is ensured with a satellite of lightweight construction regardless of the condition of a ballast bed.
  • the support device is arranged directly above the tamping unit. In this way, the weight of the main machine is used to exert a support force directly on the tamping unit via the support device. A leverage effect that places a load on the satellite frame with respect to the frame guide and its own rail chassis is avoided.
  • the support above the rail chassis known from the prior art causes a leverage effect when the tamping unit is lowered and a resulting bending stress on the satellite frame.
  • the solution according to the invention enables a particularly lightweight construction of the satellite frame. The energy required to accelerate and decelerate the satellite during a tamping cycle is thereby minimized.
  • the tamping unit is designed as a series tamping unit with several rows of separately height-adjustable tamping units, optionally for the simultaneous tamping of several sleepers or for the tamping of individual sleepers.
  • the counterforces that act on the tamping picks during a simultaneous penetration process from the ballast bed increase. In a hard ballast bed, this increase in the counterforces exceeds the increase in the weight force due to the additional Tamping units. Therefore, the arrangement of the support device directly above a row tamping unit is particularly useful.
  • Such a row tamping unit is advantageously combined with a further development of the support device, which comprises at least two pressure units that are spaced apart from one another in the working direction and can be activated separately.
  • Each pressure unit exerts its own support force, with a front pressure unit being assigned to a front row of tamping units and a rear pressure unit being assigned to a rear row of tamping units.
  • the arrangement of two pressure units for three rows of tamping units is particularly efficient. When the front tamping units are lowered alone, only the front pressure unit is activated, and when the rear tamping units are lowered alone, only the rear pressure unit is activated. When the middle tamping units are lowered alone, both pressure units are activated.
  • the support force is always applied approximately above the tamping units in use.
  • Examples of separate lowering of tamping units of a three-row row tamping unit are known from AT 524005 A1.
  • the separate activation of tamping units is also useful in the area of a switch or when there are obstacles on the track.
  • the respective pressure unit comprises a first sliding element that can be adjusted against a second sliding element.
  • the contacted sliding surfaces are aligned horizontally in particular, which also enables lateral sliding movements, for example the first sliding element on the satellite frame can be lowered or the second sliding element on the machine frame can be raised.
  • the supporting effect of the respective pressure unit can be switched off during a transfer run of the tamping machine so that all spring travel of the rail chassis can be used.
  • the respective supporting force can be varied using adjustable adjusting means.
  • the respective pressure unit of another preferred variant of the invention comprises at least one rotatable rolling element, which is in particular mounted on a longitudinal guide aligned in the working direction can be rolled off. While the satellite moves relative to the main machine, the rolling element assigned to the satellite frame rolls on a counter surface arranged on the machine frame and transfers the supporting force directly to the assigned tamping units.
  • the respective pressure unit is arranged on the machine frame and the counter surface on the satellite frame.
  • the at least one rolling element is arranged in the associated pressure unit in a height-adjustable manner by means of a drive.
  • this height adjustability enables a temporary deactivation of the respective pressure unit. This is useful during a transfer run of the tamping machine in order to be able to use the spring travel of the rail chassis without hindrance.
  • the support effect of the support device can be adjusted by adjusting the height of the at least one rolling element.
  • At least one rolling element is guided in a guide rail arranged on the machine frame. This allows the movements of the elements in contact with each other to be precisely coordinated, which minimizes signs of wear.
  • the respective pressure unit is arranged on a console, whereby the console is arranged on the satellite frame.
  • the arrangement of this console is such that the relative movements between the satellite and the main machine are not hindered and the supporting forces are transferred directly to the tamping units.
  • the console is sensibly arranged on a cross member of the satellite frame. This also enables a central arrangement of the support device directly above the tamping unit in the transverse direction to the track.
  • split pressure units are provided, with a part of each pressure unit being arranged over two lateral longitudinal beams of the satellite frame.
  • the console is mounted on the cross member of the satellite frame in a transversely movable manner. This enables a particularly stable construction of the support device in a tamping machine with a centrally arranged machine frame.
  • a The counter element of the respective pressure unit is mounted on the machine frame so that it can be moved laterally. The ability to move laterally allows the satellite to swing out unhindered relative to the main machine when cornering.
  • a tamping machine 1 is used to tamper a track 2.
  • a lifting and straightening unit 3 a track grid consisting of sleepers 4 and rails 5 attached to them is lifted out of a ballast bed 6 and straightened laterally.
  • the new track position is fixed by means of a tamping unit 7 by pushing ballast under the sleepers 4 and compacting it.
  • the tamping machine 1 shown is intended for continuous operation.
  • the tamping machine 1 essentially consists of two parts, namely a main machine 8 and a satellite 9.
  • the main machine 8 moves on rail carriages 10 in a working direction 11 continuously along the track 2 to be tamped. Only the satellite 9 moves cyclically from sleeper 4 to sleeper 4.
  • the lifting and straightening unit 3 and the tamping unit 7 are arranged on a frame 12 of the satellite 9.
  • This satellite frame 12 is supported at a rear end on its own rail carriage 10 with respect to the working direction 11 and is connected at a front end to a machine frame 14 of the main machine 8 via a frame guide 13 so that it can be moved longitudinally.
  • tamping units 15 of the tamping unit 7 are positioned over the respective sleeper 4 and lowered.
  • a support device 17 is therefore arranged directly above the tamping unit 7.
  • Above the tamping unit 7 means an arrangement in a longitudinal area 18 between external fastenings 19 of the tamping unit 7 on the satellite frame 12. In this way, the stress on the satellite frame 12 due to bending moments is largely avoided.
  • the position of the support device 17 results in a support force that is directed downwards in the area of a central vertical axis 20 of the tamping unit 7. The support force acts together with the weight of the satellite 9 against the reaction forces of the ballast bed 6 during a penetration process of the tamping unit 7.
  • Fig. 2 shows the satellite 9 with a row tamping unit 7 for the simultaneous tamping of three sleepers 4 positioned directly behind one another.
  • the row tamping unit 7 comprises three rows arranged one behind the other with separately laterally displaceable and height-adjustable tamping units 15.
  • Each row comprises four tamping units 15, with two tamping units 15 assigned to each rail 5 of the track 2.
  • the tamping picks 16 of the tamping units 15 dip into the ballast bed 6 on both sides of the respective rail 5.
  • the sum of the reaction forces occurring is approximately three times higher than with a simple tamping unit 7 for tamping a single sleeper 4.
  • the weight of the satellite 9 may not be sufficient as a counterforce to hold the rail chassis 10 of the satellite 9 on the track 2. Therefore, the weight of the main vehicle 8 is also used via the support device 17, whereby the satellite frame 12 can be designed in a lightweight construction.
  • the satellite frame 12 designed in this way, in particular an operator cabin 21 is not attached to the satellite 9, but on the Main machine 8 is arranged.
  • the lightweight construction of the satellite frame 12 is based on a detailed strength calculation, whereby, for example, openings 22 in the frame plates resulted in weight savings. Overall, the lower weight helps with the approval of the tamping machine 1 for line classes with a low permissible axle load.
  • the energy required for the acceleration and deceleration of the mass is low.
  • FIGS 2 to 5 show an embodiment of the support device 17 with an exemplary roller bearing.
  • the satellite frame 12 comprises a cross member 23, which connects the longitudinal members 24 of the satellite frame 12 and on which a bracket 25 is mounted so that it can be moved transversely.
  • the bracket 25 is mounted on two guide rods 26 of the cross member 23 arranged one above the other.
  • the extent of the transverse displacement is dimensioned such that the satellite 9 can swing out relative to the main machine 8 when driving through a curve with a minimum permissible curve radius. For example, a corresponding secant offset for both sides is 250 millimeters each.
  • a front and a rear pressure unit I are arranged on the console 25 with respect to the working direction 11.
  • the support force of the front pressure unit ZI acts from above on the front tamping units 15 and the support force of the rear pressure unit ZI acts from above on the rear tamping units 15.
  • the pressure units ZI are assigned to the rows of the row tamping unit 7.
  • the activation of the respective pressure unit ZI takes place in accordance with the activation of the assigned tamping units 15 during a tamping process. This largely avoids bending moments in the satellite frame 12.
  • Each pressure unit ZI comprises a vertical guide 28 for a respective roller holder 29.
  • a pressure roller is mounted in each roller holder 29 as a rotatable rolling element 30.
  • each roller holder 29 is coupled to a drive 31 for adjusting the height of the associated rolling element 30.
  • the respective rolling element 30 is thus secured to a roller 32 attached to the machine frame 14 for use in the tamping machine 1.
  • Longitudinal guide 32 can be adjusted. It is also useful to keep the support force of the associated pressure unit I constant by means of the respective drive 31.
  • the drive 31 is a hydraulic cylinder that is activated with a constant system pressure. In this way, vertical relative movements of the satellite 9 with respect to the main machine 8 are compensated when processing the track 2 in the area of gradient changes (changes in the longitudinal inclination of the track 2).
  • the respective rolling element 30 is guided laterally by means of lateral slide strips 33.
  • the longitudinal guide 32 forms a guide rail with the slide strips 33.
  • the respective rolling element 30 advantageously rolls on a replaceable wear plate 34 of the longitudinal guide 32.
  • the respective rolling element 30 is pressed against the longitudinal guide 32 of the machine frame 14 by means of a spring-loaded guide, whereby the spring effect can be blocked.
  • a corresponding blocking takes place so that the satellite frame 12 is supported against the machine frame 14.
  • the blocking is released so that a relative movement between the satellite frame 12 and the machine frame 14 is possible.
  • the required length of the longitudinal guide 32 depends on the maximum travel distance that the satellite 9 travels during operation relative to the main machine 8. This depends on various factors, such as the intended working speed of the main machine 8, the intended duration of a complete tamping cycle and the maximum number of sleepers 4 to be tamped simultaneously.
  • Fig. 6 shows an alternative structure of the satellite 9.
  • the support device 17 here comprises two pressure units ZI with a first sliding element 35 on the satellite frame 12 and a second sliding element 36 on the machine frame 14.
  • the respective second sliding element 36 has a smaller sliding surface than the first sliding element 35 and can be adjusted against the first sliding element 35 by an associated drive 31.
  • the drive 31 with the associated sliding element 35 is designed as a plunger cylinder with connections to a hydraulic system of the tamping machine 1.
  • the second sliding elements 36 slide on the first sliding element 35 both in the longitudinal direction and in the transverse direction, so that the support remains upright during a relative movement of the satellite 9 with respect to the main machine 8.
  • both sliding elements 35, 36 have replaceable wear plates 34.

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

Abstract

L'invention concerne une machine de bourrage (1) destinée au bourrage de traverses (4) d'une voie ferrée (2). Ladite machine de bourrage comprend : un bâti de machine (14) supporté sur des bogies de rail (10) ; et un bâti satellite (12) qui est positionné entre les bogies de rail (10), est supporté par son propre bogie de rail (10) à l'arrière par rapport à une direction de travail (11), et est relié au bâti de machine (14) à l'avant par l'intermédiaire d'un guide de bâti (13) d'une manière déplaçable longitudinalement, et sur lequel une unité de bourrage (7) est positionnée entre son propre bogie de rail (10) et le guide de bâti (13), le bâti satellite (12) pouvant être supporté par rapport au bâti de machine (14) au moyen d'un dispositif de support (17). Le dispositif de support (17) est positionné directement au-dessus de l'unité de bourrage (7). De cette manière, le poids de la machine principale (8) est utilisé pour exercer une force de support directement sur l'unité de bourrage (7) par l'intermédiaire du dispositif de support (17). Un effet de levier qui sollicite le bâti satellite (12) est évité.
PCT/EP2023/084115 2022-12-09 2023-12-04 Machine de bourrage destinée au bourrage de traverses d'une voie ferrée WO2024121053A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50941/2022A AT526337B1 (de) 2022-12-09 2022-12-09 Stopfmaschine zum Unterstopfen von Schwellen eines Gleises
ATA50941/2022 2022-12-09

Publications (1)

Publication Number Publication Date
WO2024121053A1 true WO2024121053A1 (fr) 2024-06-13

Family

ID=89121940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/084115 WO2024121053A1 (fr) 2022-12-09 2023-12-04 Machine de bourrage destinée au bourrage de traverses d'une voie ferrée

Country Status (2)

Country Link
AT (1) AT526337B1 (fr)
WO (1) WO2024121053A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT382658B (de) * 1983-12-16 1987-03-25 Plasser Bahnbaumasch Franz Kontinuierlich verfahrbare gleisstopfmaschine
AT413554B (de) 2003-10-31 2006-03-15 Plasser Bahnbaumasch Franz Stopfmaschine zum unterstopfen eines gleises
AT524005A1 (de) 2020-07-03 2022-01-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Maschine mit einem Stopfaggregat

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2583373B1 (es) * 2015-03-18 2017-06-15 Jose Antonio Ibañez Latorre Máquina de mantenimiento de vía férrea para nivelación y alineación de vía, con capacidad de operar sin interrupciones en su avance en vía corrida y operar en cambios de vía bateando la vía desviada.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT382658B (de) * 1983-12-16 1987-03-25 Plasser Bahnbaumasch Franz Kontinuierlich verfahrbare gleisstopfmaschine
AT413554B (de) 2003-10-31 2006-03-15 Plasser Bahnbaumasch Franz Stopfmaschine zum unterstopfen eines gleises
AT524005A1 (de) 2020-07-03 2022-01-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Maschine mit einem Stopfaggregat

Also Published As

Publication number Publication date
AT526337A4 (de) 2024-02-15
AT526337B1 (de) 2024-02-15

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