US2971472A - Mobile track tamping machine - Google Patents

Mobile track tamping machine Download PDF

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Publication number
US2971472A
US2971472A US685863A US68586357A US2971472A US 2971472 A US2971472 A US 2971472A US 685863 A US685863 A US 685863A US 68586357 A US68586357 A US 68586357A US 2971472 A US2971472 A US 2971472A
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US
United States
Prior art keywords
ballast
tamping
tamper
ties
tools
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.)
Expired - Lifetime
Application number
US685863A
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English (en)
Inventor
Plasser Franz
Theurer Josef
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2971472A publication Critical patent/US2971472A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the present invention relates to railroad ballast tamping machines, and more particularly to a novel tamping tool arrangement for such machines.
  • At least one additional tamping tool is provided behind the tamping tools used for tamping ballast beneath the ties to tamp the ballast between the adjacent ties. This makes it possible to tamp the loose ballast between the ballast which has been tamped underneath the ties. Thus, the tamped ballast cone under the ties receives a lateral support of tamped ballast.
  • the additional tamping tool is a ballast vibrator with a working surface almost as wide as the distance between the ties.
  • pairs of vibratory tamping tools and the additional tamper may be mounted on the machine'carriage independently, it is more economical and preferred to mount them all on a common vertically adjustable carrier. It is possible to make the additional tamper adjustable in height independently from the vertical adjustment of the pairs of tamping tools and also to mount them laterally adjustably so that the spacing between the pairs of the tamping tools and the additional tamper may be varied at will and in accordance with the tie spacing so that the tamper may work always midway between two adjacent ties.
  • ballast surface tamper may be a vibrator which may be driven mechanically, pneumatically, electrically or hydraulically.
  • the drive and control for the pairs of tamping tools and the additional tamper may be the same since they are operated simultaneously.
  • Such an arrangement makes the cost of the additional tamper very small and the improved results obtained by such a tamper far exceed the small increase in cost.
  • such known track tampers comprise a carriage 1 on which a vertically movable tamping tool carrier 2 is mounted.
  • the carrier is adapted to glide upward and downward on the columns 2a.
  • a laterally extending eccentric shaft 3 is mounted on carrier 2.
  • a pair of tamping tools 4 is linked to the ends of arms 6 and when the eccentric shaft is rotated, the tamping tools will be vibrated.
  • the lower jaws 5 of the tamping tools reach into the ballast and the tools are pivoted to the carrier at 4a where a mechanism (not shown) is connected to move the tools towards and away from each other.
  • a mechanism not shown
  • a bracket 11 is provided on the carrier 2 to carry the additional tamper 10 which carries a surface vibrator 9.
  • Vibrators of this type are also Well known per se and the vibrator drive has, therefore, not been illustrated to avoid encumbering the drawing with structural details Well within the skill of the mechanic. If desired, there may be a common drive for the tamping tool pairs and the additional tamper.
  • the machine operates as follows:
  • the machine is driven along the tracks 7 until it has reached a position where the ececntric shaft 3 is located above the first tie to be tamped.
  • the carrier 2 is then lowered so that the tamping tool ends 5 reach into the ballast at both sides of the tie.
  • the additional tamper 9 contacts the ballast between two ties which have both been tamped in the preceding working step.
  • the common drive for the tamping tools is now actuated and while the pairs of tamping tools tamp the ballast under tie S, the tamper 9 tamps the ballast between the two next following ties.
  • the entire ballast underneath as well as between the ties will be of homogeneous density.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US685863A 1956-09-27 1957-09-24 Mobile track tamping machine Expired - Lifetime US2971472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT2971472X 1956-09-27

Publications (1)

Publication Number Publication Date
US2971472A true US2971472A (en) 1961-02-14

Family

ID=3690571

Family Applications (1)

Application Number Title Priority Date Filing Date
US685863A Expired - Lifetime US2971472A (en) 1956-09-27 1957-09-24 Mobile track tamping machine

Country Status (4)

Country Link
US (1) US2971472A (de)
CH (1) CH361021A (de)
DE (1) DE1036892B (de)
FR (1) FR1182942A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230257939A1 (en) * 2020-07-03 2023-08-17 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Machine and method with a tamping unit

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT208910B (de) * 1958-10-15 1960-05-10 Plasser Bahnbaumasch Franz Gleisstopfmaschine
AT201640B (de) * 1958-10-30 1959-01-10 Plasser Bahnbaumasch Franz Fahrbare Gleisstopfmaschine
DE1106790B (de) 1959-04-06 1961-05-18 Windhoff Rheiner Maschf Auf dem Gleis fahrbare Vorrichtung zum Verdichten des Bettungsschotters
AT319315B (de) * 1970-06-08 1974-12-10 Plasser Bahnbaumasch Franz Machine zum Unterstopfen von Gleisschwellen mittels Stopfwerkzeuge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE429603C (de) * 1924-02-12 1926-06-01 Cubex Maschinenfabrik G M B H Fahrbare Vorrichtung zum Dichten des Bodens fuer zu rueckende Gleise
US2043585A (en) * 1933-07-26 1936-06-09 City Of Detroit Concrete tamping device
US2497682A (en) * 1950-02-14 Railroad ballast tamper and equalizer
FR1074221A (fr) * 1952-04-01 1954-10-04 Matisa Materiel Ind Sa Dispositif pour décharger les rails du poids d'une machine à bourrer le ballast
US2712287A (en) * 1955-07-05 Zurmuhle
FR1101408A (de) * 1953-06-02 1955-10-06

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
US2712287A (en) * 1955-07-05 Zurmuhle
DE429603C (de) * 1924-02-12 1926-06-01 Cubex Maschinenfabrik G M B H Fahrbare Vorrichtung zum Dichten des Bodens fuer zu rueckende Gleise
US2043585A (en) * 1933-07-26 1936-06-09 City Of Detroit Concrete tamping device
FR1074221A (fr) * 1952-04-01 1954-10-04 Matisa Materiel Ind Sa Dispositif pour décharger les rails du poids d'une machine à bourrer le ballast
FR1101408A (de) * 1953-06-02 1955-10-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230257939A1 (en) * 2020-07-03 2023-08-17 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Machine and method with a tamping unit
US12529192B2 (en) * 2020-07-03 2026-01-20 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Machine and method with a tamping unit

Also Published As

Publication number Publication date
FR1182942A (fr) 1959-07-01
CH361021A (de) 1962-03-31
DE1036892B (de) 1958-08-21

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