US3429276A - Track tamping machine - Google Patents

Track tamping machine Download PDF

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Publication number
US3429276A
US3429276A US643972A US3429276DA US3429276A US 3429276 A US3429276 A US 3429276A US 643972 A US643972 A US 643972A US 3429276D A US3429276D A US 3429276DA US 3429276 A US3429276 A US 3429276A
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United States
Prior art keywords
tamping
tools
adjacent
track
portions
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Expired - Lifetime
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US643972A
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English (en)
Inventor
Franz Plasser
Josef Theurer
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Franz Plasser Bahnbaumaschinen Industrie GmbH
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Individual
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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 present invention relates to improvements in a tamping tool, and to a tamping tool assembly incorporating such a novel tamping tool.
  • the lower portions of the tamping tools are cranked in respect of the upper tamping tool portions in the direction of reciprocation, i.e. the track elongation, the lower portions being closer to each other than the upper portions.
  • the tamping tool jaws of the adjacent tools may be moved into overlapping relationship in a plane transverse to the track elongation.
  • the lower portions of the the adjacent tamping tools are laterally cranked in respect of the -upper tamping tool portions, i.e. in the direction of the tie elongation.
  • the upper tamping tool portions may be moved in the same vertical plane while the lower portions are moved past each other.
  • the adjacent tamping tools are cranked in both directions so that they may go through a maximum tamping stroke without interference with, or damage to, each other.
  • FIG. l is a partial side view of a track tamper incorporating a tamping assembly with tamping tools according to this invention
  • FIG. 2 is a front View of a portion of the adjacent tamping tools of the two adjacent groups of tools, seen in the direction of arrow II of FIG. 1;
  • FIG. 3 is a schematic top view showing the positions of the tamping tools of the assembly of FIG. l in relation to a pair of adjacent ties.
  • the tamping tool assembly is the same as that more fully described and illustrated in one of the embodiments in our Patent No. 3,357,366, led Feb. 17, 1966, and all features not more fully described or illustrated herein may be found in said patent.
  • the mounting and moving mechanisms for the tamping tools are generally conventional and have been fully disclosed, for instance, in our U.S. Patent No. 3,000,327, dated Sept. 19, 1961.
  • the assembly comprises vibratory shaft 11 supported on tamping tool carrier 5 with its axis parallel to ties 2, this shaft being vibrated by rotation of an axle mounted eccentrically in a central bore of the shaft, as is conventional.
  • the track tamping tool assembly comprises two groups of tamping tools, each group designed to tamp a tie 2, and represented herein by pairs of opposing tamping tools, only one of the pairs being shown in full while the other pair is indicated only by one tool.
  • the tamping' tools comprise pivotal levers 19, 20, respectively, which are pivotally secured intermedi-ate their ends to fulcrums 6 and 14, respectively, and a lower tamping tool part for immersion in the ballast adjacent a respective tie 2.
  • Fixed fulcrum 14, 14 is pivotally secured to each lever 20, 20 of the adjacent tamping tools of the adjacent pairs of the tools, and the means for etfectuating the reciprocation of the adjacent tools consists of hydraulic motors 17 whose piston rods 16 are respectively linked to each of the upper ends of the adjacent tamping tools -for moving the upper tool ends in the direction of elongation of the track.
  • the cylinders of the hydraulic motors 17 are linked to the outer ends of the vibratory arms 10 at pivots 18 so that the vibration of the vibratory arms is transmitted to the tamping tools via their reciprocating devices.
  • Fulcrums 6 of the tamping tool levers 19, which support the lower tamping tool part constituted by tamping tool jaw mounts 3 with their tamping jaws 25, are mounted for movement in the direction of elongation of the track and are secured to slidable supports mounted on support rails 7 carried by brackets 8 in tamping tool carrier 5, all in a manner well known per se.
  • the tamping tool reciprocating device includes piston rods 12 attached to the sliding supports 7 and gliding in stationary cylinder 13 centrally of the adjacent pairs of tools.
  • levers 20 have sockets 21 wherein the tamping tool jaw mounts 4 are removably held.
  • the tamping tool jaw lmounts 4, 4 of the adjacent tamping tools are bent towards each other immediately below the sockets 21, whereby an upper portion of each mount extends in a first substantially vertical plane, a lower portion extends in a second substantially vertical plane spaced yfrom the rst plane in the direction of elongation of the track, and a connecting crank portion between the upper and lower portions extends from the first to the second plane.
  • the two adjacent tamping tools in the interspace between two adjacent ties will overlap each other at least partially in a plane transverse to the elongation of the track in their lowermost or tamping position when the tamping tool jaws and their mounts are immersed in the ballast below the connecting portion at the beginning of a ktamping stroke when the opposed tools of each tamping tool group are moved farthest apart (FIG. l).
  • the reciprocating stroke of the tamping tools may be increased to a maximum while the resistance against their penetration into the ballast during immersion is reduced to a mini-mum.
  • the tamping tool levers 20 of the adjacent tamping tools have upper and lower portions extending in vertical planes parallel to the elongation of the track, the lower portions being laterally offset from the upper portions, with a connecting crank portion 23 between the upper and lower portions.
  • the upper portions of adjacent tamping tools may be reciprocated in the direction of elongation of the track in the 4same vertical plane extending in such direction while the lower, laterally offset portions of the adjacent tamping tools are reciprocated below the connecting portion 23 in parallel planes, thus producing the advantageous arrangement shown in FIGS. 2 and 3.
  • the offset configuration of the tamping tools is preferably arranged above the socket 21, i.e. in the tamping tool lever, and the connecting portions 23 of adjacent tools extend in opposite directions.
  • the tamping jaws 24 and 25 have the corrugated contiguration more fully described and claimed in our copending application Ser. No. 575,043, filed Aug. 25, 1966. This makes it possible to arrange the adjacent tamping tools in the smallest possible space while making it possible to have a maximum tamping stroke.
  • difference portions of the adjacent tamping tools may be offset in relation to each other in a variety of ways, either in the direction of the track elongation or of the tie elongation, and! or any combination of such offset tamping tool portions may be used to facilitate the relative movement of the adjacent tamping tools without interference with each other.
  • a machine for tamping ballast underneath a track including rails supported on a plurality of spaced ties resting on the ballast, lcomprising a tamping tool having a lower part for immersion in the ballast adjacent a respective one of said ties, and means for reciprocating the tamping tool about a fulcium in the direction of elongation of the track towards and away from said respective tie, the fulcrum being positioned above said lower part, the improvement of the lower tamping tool part having two portions offset from each other in the direction of elongation of the track, and a connecting portion -between the two portions, the lower one of said offse-t portions being farther from the respective tie than the upper offset portion, and the connecting portion being at the upper end of the lower part which is not immersed in the ballast.
  • the tamping tool comprises a lever and a tamping tool jaw mount attached to the lever, the fulcrum being located on the lever and the jaw mount constituting said lower tamping tool part.
  • lever has two laterally offset portions, the two offset lever portions extending in substantially vertical planes parallel to the elongation of the track, and a connecting portion between the two lever portions, the two offset lever portions extending below the fulcrum.
  • each of said adjacent tamping tools comprises a lever and a tamping tool jaw mounted attached to the lever, the fulcru-m being located on the lever and the jaw mount constituting said lower tamping tool part, the lever having two laterally offset portions, the two offset lever port-ions extending in substantially vertical planes parallel to the elongation of the track, and a connecting portion between the two lever portions, the two offset lever portions extending below the fulcrum, and the upper ones of the offset lever portions of the adjacent tamping tools being arranged in a single Vertical plane extending in the direction of elongation ofthe track.
  • a machine for tamping ballast underneath a track including rails supported on a plurality o-f spaced ties rresting on the ballast, comprising a pair of tamping tools each having a lower part ⁇ for immersion in the ballast adjacent a respective one of said ties, and means for reciprocating the tamping tools about a fulcrum in the direction of elongation of the track towards and away from said respective ties, the fulcrum being positioned above said lower part, the improvement of at least one of the lower tamping tool parts having two portions connected by a bend, the lower one of said portions being farther away from the respective tie than the upper portion.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Basic Packing Technique (AREA)
US643972A 1966-06-15 1967-06-06 Track tamping machine Expired - Lifetime US3429276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT573366A AT294897B (de) 1966-06-15 1966-06-15 Stopfwerkzeug für Gleisstopfmaschinen sowie Gleisstopfmaschine mit solchen Werkzeugen

Publications (1)

Publication Number Publication Date
US3429276A true US3429276A (en) 1969-02-25

Family

ID=3579056

Family Applications (1)

Application Number Title Priority Date Filing Date
US643972A Expired - Lifetime US3429276A (en) 1966-06-15 1967-06-06 Track tamping machine

Country Status (7)

Country Link
US (1) US3429276A (de)
AT (1) AT294897B (de)
CH (1) CH475420A (de)
ES (1) ES340872A1 (de)
FR (1) FR1523094A (de)
GB (1) GB1193184A (de)
SU (1) SU394977A3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130063A (en) * 1975-09-16 1978-12-19 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Tamping head
US4428297A (en) 1981-03-05 1984-01-31 Sig Societe Industrielle Suisse Railway track tamping machine
US5048425A (en) * 1989-06-16 1991-09-17 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Ballast tamping unit for mounting on a tamping machine and a tamping tool therefor
US5133263A (en) * 1990-04-20 1992-07-28 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Ballast tamping assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142069B (en) * 1983-06-22 1987-01-28 Dobson Park Ind Tamping machine
AT521673B1 (de) * 2018-10-24 2020-04-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat zum Unterstopfen von Schwellen eines Gleises

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497682A (en) * 1950-02-14 Railroad ballast tamper and equalizer
FR1030157A (fr) * 1950-12-27 1953-06-10 Fourche pour la manutention des pierres cassées
US2693769A (en) * 1952-01-10 1954-11-09 Frank J Herlehy Railroad track lining machine
US2734463A (en) * 1956-02-14 Railway track ballast tamping apparatus
GB793377A (en) * 1955-07-08 1958-04-16 Meer Ag Maschf Improvements in or relating to a method and an apparatus for the mechanical packing of railway tracks
US3292558A (en) * 1964-01-27 1966-12-20 Matisa Materiel Ind Sa Railway track ballast tamper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497682A (en) * 1950-02-14 Railroad ballast tamper and equalizer
US2734463A (en) * 1956-02-14 Railway track ballast tamping apparatus
FR1030157A (fr) * 1950-12-27 1953-06-10 Fourche pour la manutention des pierres cassées
US2693769A (en) * 1952-01-10 1954-11-09 Frank J Herlehy Railroad track lining machine
GB793377A (en) * 1955-07-08 1958-04-16 Meer Ag Maschf Improvements in or relating to a method and an apparatus for the mechanical packing of railway tracks
US3292558A (en) * 1964-01-27 1966-12-20 Matisa Materiel Ind Sa Railway track ballast tamper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130063A (en) * 1975-09-16 1978-12-19 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Tamping head
US4428297A (en) 1981-03-05 1984-01-31 Sig Societe Industrielle Suisse Railway track tamping machine
US5048425A (en) * 1989-06-16 1991-09-17 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Ballast tamping unit for mounting on a tamping machine and a tamping tool therefor
AU630969B2 (en) * 1989-06-16 1992-11-12 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Tamping unit and tamping tine for track tamping machine
US5133263A (en) * 1990-04-20 1992-07-28 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Ballast tamping assembly

Also Published As

Publication number Publication date
CH475420A (de) 1969-07-15
GB1193184A (en) 1970-05-28
SU394977A3 (de) 1973-08-22
FR1523094A (fr) 1968-04-26
ES340872A1 (es) 1968-06-16
AT294897B (de) 1971-12-10
DE1658332A1 (de) 1970-11-26
DE1658332B2 (de) 1975-11-13

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