EP0180570A2 - Unité de bourrage comportant des appareils de bourrage à vibration et ajustables pour une machine bourreuse de voie mobile et dispositif pour actionner l'unité de bourrage - Google Patents

Unité de bourrage comportant des appareils de bourrage à vibration et ajustables pour une machine bourreuse de voie mobile et dispositif pour actionner l'unité de bourrage Download PDF

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Publication number
EP0180570A2
EP0180570A2 EP85890196A EP85890196A EP0180570A2 EP 0180570 A2 EP0180570 A2 EP 0180570A2 EP 85890196 A EP85890196 A EP 85890196A EP 85890196 A EP85890196 A EP 85890196A EP 0180570 A2 EP0180570 A2 EP 0180570A2
Authority
EP
European Patent Office
Prior art keywords
pressure
tamping
pressure medium
tamping unit
cellular wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85890196A
Other languages
German (de)
English (en)
Other versions
EP0180570A3 (en
EP0180570B1 (fr
Inventor
Otto Ziegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Franz Plasser Bahnbaumaschinen Industrie GmbH
Original Assignee
Franz Plasser Bahnbaumaschinen Industrie GmbH
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 Franz Plasser Bahnbaumaschinen Industrie GmbH filed Critical Franz Plasser Bahnbaumaschinen Industrie GmbH
Priority to AT85890196T priority Critical patent/ATE38697T1/de
Publication of EP0180570A2 publication Critical patent/EP0180570A2/fr
Publication of EP0180570A3 publication Critical patent/EP0180570A3/de
Application granted granted Critical
Publication of EP0180570B1 publication Critical patent/EP0180570B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines

Definitions

  • the invention relates to a tamping unit for a track tamping machine with vibrating and adjustable tamping tools according to the preamble of claim 1:
  • the invention also relates to a drive according to the preamble of claim 13.
  • the vibration and adjustment movements of the tamping tools of a known track tamping machine are generated with a mechanical vibration drive (eccentric drive) and a hydraulic or mechanical adjustment drive.
  • CH patent 589 176 describes a hydraulic drive for another known track tamping machine, in which vibration and adjustment movements of a tamping tool are generated with only one hydraulic cylinder. The amount of oil pressed into the piston during the working stroke is ejected through the returning piston into an oil collecting container.
  • the drive with the hydraulic cylinder can only be designed between very close application limits.
  • the piston speed must not exceed these limits of use for the seals and on the other hand, the lever length and thus the piston speed cannot be reduced arbitrarily, since the bearing forces and bearing dimensions become larger with a shorter lever.
  • the invention aims to provide a track tamping unit with tamping tools, which has a single drive for the generation of the vibration and adjustment movements, the application limits of which, i. Vibration and adjustment paths have no influence on the seals, and its energy which is not released to the ballast or destroyed by friction can be recovered in the pressure medium.
  • the invention also relates to the provision of a device for driving the track tamping unit.
  • one or more tamping arms of the tamping unit are advantageously fixedly connected to the associated cell wheel or to the housing via a shaft.
  • the tamping unit according to the invention which means a considerable reduction in the number of bearing pairs compared to conventional tamping units.
  • the total of all bearing clearances is also reduced and thus a reduction in noise and a reduction in the otherwise very high maintenance costs can also be achieved.
  • the hydraulic fluid escaping between the cell wheel housing and the cell wheel can be used to lubricate the bearing pairs.
  • a maintenance-free tamping unit can thus be built, apart from the occasional replacement of the tamping tools.
  • the vibration and adjustment drive 13 of tamping tools 4 of a track tamping machine takes place via a cellular wheel 1 arranged in a housing 2, the cellular wheel vanes la of which, viewed tangentially, can be subjected to different pressures.
  • the pressure chambers 14, 15 required for this purpose are formed by webs 2a fixedly attached to the cellular wheel housing 2, which extend radially between the cellular wheel vanes la and the cellular wheel body 1b (FIG. 4).
  • the cellular wheel 1 rotates forward until the pressure in the pressure chambers 14, 15 is balanced again, or the cellular wheel vanes la stand against the webs 2a in the cellular wheel housing 2.
  • the pressure chambers 15 previously pressurized with a lower pressure are pressurized with a higher pressure.
  • the one pressure chambers 14 are preferably subjected to a more or less constant pressure and, for this purpose, connected to a hydraulic pressure accumulator 9.
  • the pressure In the other pressure chambers 15, the pressure must now be raised above the pressure level in the hydraulic pressure accumulator 9 in order to rotate the cell wheel 1 in one direction and lowered below the pressure level in the hydraulic pressure accumulator 9 in order to rotate the cell wheel 1 in the other direction.
  • the cellular wheel 1 can be equipped with one or more blades la.
  • a single-wing cellular wheel 1 permits a large angle of rotation, which may be desirable, but causes bearing forces when a torque is generated.
  • the pressure chambers can move against and against each other outside with seals without contact or in combination of the options mentioned.
  • the pressure medium can be supplied and removed radially or axially through the cellular wheel housing 2, through the cellular wheel shaft, or in a combination of the possibilities mentioned.
  • the pressure medium supply and discharge take place alternately through the openings 18 on the pressure medium columns 7, 8.
  • openings 17 with a smaller cross section are provided at the edge of the pressure chambers 14, 15 for the pressure medium supply at the end of the stroke.
  • the pressure in the pressure chambers 15 not connected to the reservoir 9 is reduced to a certain or variable rhythm below the reservoir pressure and raised above the reservoir pressure.
  • the rhythm in which the pressure in the pressure chambers 14, 15 is raised and lowered results in the vibration frequency at the tamping tool 4.
  • the vibration amplitude of the tamping tool 4 is determined by the amount of the pressure medium volume pressed or released into the pressure chambers.
  • the adjustment of the tamping tools 4 is achieved by superimposing the rotary vibration of the cellular wheel 1 on a rotary movement with the desired angle of rotation, direction of rotation, angular velocity and torque.
  • To generate a rotary movement is pressed by means of a pump and commercially available valves 12 pressure fluid into one pressure chamber 14 or 15 on the cellular wheel 1 and discharged from the other pressure chambers 15 or 14.
  • the cellular wheel 1 can rotate in the cellular wheel housing 2 in both directions of rotation until the cellular wheel vanes 1 a are in contact with the webs 2 a of the cellular wheel housing 2.
  • the device comprising cellular wheel 1 and cellular wheel housing 2 is provided with end position damping, as is also used in hydraulic cylinders with end position damping.
  • the cellular wheel vanes la completely or partially close the pressure medium outlet openings 18 before reaching the webs 2a. The pressure in the closed pressure chambers increases and the rotary movement is stopped before the vanes la reach the webs 2a.
  • the metered injection and discharge of pressure fluid is done with a pulsator 6, which is under construction a hydraulic pump, for example a multi-piston radial piston pump with an eccentric drive, the piston and an electric motor 11 are the same.
  • the pistons of the pulsator 6 are always acted upon with the same pressure fluid, apart from the flushing fluid.
  • the pulsator 6 only moves the pressure medium liquid back and forth in the pressure medium columns 7, 8 and only requires one connection for the pressure medium liquid per piston.
  • the pulsator - cellular wheel - accumulator it is also possible to arrange the pulsator - cellular wheel - pulsator, i.e. the pressure chambers on both sides of the cellular wheel wing la are each connected to a pulsator piston 6a) recovered with good efficiency, saved and immediately returned.
  • the pulsator - cellular wheel - pulsator i.e. the pressure chambers on both sides of the cellular wheel wing la are each connected to a pulsator piston 6a
  • a flushing of the two pressure medium columns is achieved according to the invention by the pressure medium supply for the adjustment movement of the tamping tools 4 at one end of the pressure medium columns and the pressure medium removal at the other end of the Pressure fluid columns.
  • the pressure medium supply for the adjustment movement to the pressure chambers does not take place directly into the pressure chambers, but close to the pressure accumulator 9 and the pulsator 6 (cf. FIG. 3).
  • the pressure medium which is removed and heated during the adjustment movement can be used to heat the cellular wheel housing 2, in particular while the tamping unit is warming up. This can counteract an uncontrolled change in the sealing gap thickness between cellular wheel 1 and cellular wheel housing 2 as a result of temperature differences.
  • the monitoring of the rotary movements of the cellular wheel 1, in particular the actuation of the tamping tools 4 in the starting position before immersion in the ballast bed, is carried out by means of an electrical angle-of-rotation sensor 10.
  • an electrical angle-of-rotation sensor 10 instead of the angle-of-rotation sensor, a displacement sensor, preferably fastened between the tamping arm 5 and the cell-wheel housing 2, can also be used be used.
  • the tamping unit 13 consists of two opposing tamping tools 4, which are connected in a rotationally fixed manner to the shaft 3 of the cellular wheels 1.
  • Two opposing tamping tools 4 each engage under the rail sleepers 19 on the side of the rails 20.
  • the common housing 2 is fastened to guides in a known manner so that they can be raised and lowered (guides not shown).
  • FIG. 5 shows how one of the tamping tools 4 can be removed from the obstacle area in the case of obstacles 21, for example a switch, in this embodiment the tamping tool 4 is fixedly connected to the housing 2 and the cellular wheel 1 is fixedly attached.
  • the pivoting range of the tamping tools 4 to 90 0 or more increases can so that the tools 4 individually completely from the obstacle area removed.
  • the pivoting is carried out like the infeed movement by adding or removing pressure media in the pressure chambers and can be carried out in the raised position without interrupting the vibration movements.
  • FIG. 6 Individually driven tamping tools 4 are shown in FIG. 6, which can also be lifted individually in the case of obstacles 21. With this arrangement, however, a vertical guide is necessary for each tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP85890196A 1984-10-30 1985-08-30 Unité de bourrage comportant des appareils de bourrage à vibration et ajustables pour une machine bourreuse de voie mobile et dispositif pour actionner l'unité de bourrage Expired EP0180570B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85890196T ATE38697T1 (de) 1984-10-30 1985-08-30 Stopfaggregat mit vibrier- und verstellbaren stopfwerkzeugen fuer eine fahrbare gleisstopfmaschine und eine vorrichtung zum antreiben des gleisstopfaggregates.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5178/84 1984-10-30
CH5178/84A CH668093A5 (de) 1984-10-30 1984-10-30 Gleisstopfaggregat einer gleisstopfmaschine.

Publications (3)

Publication Number Publication Date
EP0180570A2 true EP0180570A2 (fr) 1986-05-07
EP0180570A3 EP0180570A3 (en) 1986-12-03
EP0180570B1 EP0180570B1 (fr) 1988-11-17

Family

ID=4289215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85890196A Expired EP0180570B1 (fr) 1984-10-30 1985-08-30 Unité de bourrage comportant des appareils de bourrage à vibration et ajustables pour une machine bourreuse de voie mobile et dispositif pour actionner l'unité de bourrage

Country Status (4)

Country Link
EP (1) EP0180570B1 (fr)
AT (1) ATE38697T1 (fr)
CH (1) CH668093A5 (fr)
DE (1) DE3566284D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331956A2 (fr) * 1988-03-09 1989-09-13 SO.RE.MA. OPERATRICI FERROVIARIE S.N.C. DI CESARE ROSSANIGO & C. Machine de compactage, en particulier pour ballast de voie ferrée
AT518025A1 (de) * 2015-12-10 2017-06-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat und Verfahren zum Unterstopfen eines Gleises
EP2770108B1 (fr) 2013-02-22 2021-05-05 HP3 Real GmbH Unité de bourrage pour une machine à bourrer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734463A (en) * 1956-02-14 Railway track ballast tamping apparatus
US3322038A (en) * 1964-04-09 1967-05-30 Sperry Rand Corp Hydraulic hammer
FR2126161A1 (fr) * 1971-02-24 1972-10-06 Sieke Helmut
FR2270377A1 (fr) * 1974-05-09 1975-12-05 Plasser Bahnbaumasch Franz
FR2384063A1 (fr) * 1977-03-18 1978-10-13 Canron Inc Procede et machine pour la refection d'une voie ferree
DE3323879A1 (de) * 1982-10-05 1984-04-05 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Einrichtung zur hubverstellung an drehfluegelmotoren

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734463A (en) * 1956-02-14 Railway track ballast tamping apparatus
US3322038A (en) * 1964-04-09 1967-05-30 Sperry Rand Corp Hydraulic hammer
FR2126161A1 (fr) * 1971-02-24 1972-10-06 Sieke Helmut
FR2270377A1 (fr) * 1974-05-09 1975-12-05 Plasser Bahnbaumasch Franz
FR2384063A1 (fr) * 1977-03-18 1978-10-13 Canron Inc Procede et machine pour la refection d'une voie ferree
DE3323879A1 (de) * 1982-10-05 1984-04-05 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Einrichtung zur hubverstellung an drehfluegelmotoren

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331956A2 (fr) * 1988-03-09 1989-09-13 SO.RE.MA. OPERATRICI FERROVIARIE S.N.C. DI CESARE ROSSANIGO & C. Machine de compactage, en particulier pour ballast de voie ferrée
EP0331956A3 (en) * 1988-03-09 1989-11-23 So.Re.Ma. Operatrici Ferroviarie S.N.C. Di Cesare Rossanigo & C. Improved tamping machine, particularly for railroad ballasts
EP2770108B1 (fr) 2013-02-22 2021-05-05 HP3 Real GmbH Unité de bourrage pour une machine à bourrer
AT518025A1 (de) * 2015-12-10 2017-06-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat und Verfahren zum Unterstopfen eines Gleises
WO2017097390A1 (fr) * 2015-12-10 2017-06-15 Plasser & Theurer Export Von Bahnbaumaschinen Groupe de bourrage muni d'un capteur d'angle permettant de déterminer la position de l'outil de bourrage

Also Published As

Publication number Publication date
DE3566284D1 (en) 1988-12-22
ATE38697T1 (de) 1988-12-15
CH668093A5 (de) 1988-11-30
EP0180570A3 (en) 1986-12-03
EP0180570B1 (fr) 1988-11-17

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