US3000327A - Track tamping machine - Google Patents

Track tamping machine Download PDF

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Publication number
US3000327A
US3000327A US741984A US74198458A US3000327A US 3000327 A US3000327 A US 3000327A US 741984 A US741984 A US 741984A US 74198458 A US74198458 A US 74198458A US 3000327 A US3000327 A US 3000327A
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US
United States
Prior art keywords
tamping
cylinder
tools
track
piston
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
US741984A
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English (en)
Inventor
Plasser Franz
Theurer Josef
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Priority to CH334544D priority Critical patent/CH334544A/de
Priority to DEP17375A priority patent/DE1021402B/de
Priority claimed from US462086A external-priority patent/US2876709A/en
Priority to US571812A priority patent/US2883941A/en
Application filed by Individual filed Critical Individual
Priority to US741984A priority patent/US3000327A/en
Application granted granted Critical
Publication of US3000327A publication Critical patent/US3000327A/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
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines

Definitions

  • TRACK TAMPING MACHINE A TTORNE Y United States Patent O 3,000,327 TRACK TAMPING MACHINE Franz Plasser and Josef Thenrer, both of Iohannesgasse 3, Vienna, Austria Original application Oct. 13, 1954, Ser. No. 462,086, now
  • Patent No. 2,876,709 dated Mar. 10, 1959. Divided and this application June 11, 1958, Ser. No. 741,984
  • Ballast tamping machines generally comprise several pairs of opposing tamping tools mounted on a vertically movable carrier to reciprocate in a direction substantially parallel to the track, a tamping tool mounting device common to at least one pair of tamping tools, each tamping tool being linked to the mounting device at its upper end, an eccentric shaft operatively connected to the mounting device for imparting a vibrator-y movement to the mounting device and the tarnpingtools linked thereto, and means for varying the distance between the tamping tools of each pair.
  • the ballast is packed under a tie by placing the tie between pairs of tamping tools and forcing the tamping tools together while they are simultaneously vibrated.
  • the distance varying mechanism for each pair of opposing tamping tools comprises a cylinder closed at both ends and fixedly ymounted on the tamping tool carrier, two piston rods slidably mounted in a respective one of the cylinder ends and each rod carrying a piston on its inside, the two pistons dividing the cylinder into a center and two outer chambers, and means for applying pressure to the cylinder chambers.
  • Each tamping tool is pivoted to a respective one of the piston rods at a position outside the fixed cylinder.
  • FIG. 1 is a side view of a ballast tamping machine incorporating one embodiment of the distance varying mechanism of the invention
  • FIG. 2 is an enlarged side view of the distance varying .mechanism of FIG. 1;
  • FIG. l shows a track tamping -machine incorporating a tamping tool distance varying mechanism which comprises longitudinally reciplocable piston rods linked to each tamping tool intermediate its ends, the inner ends of two opposing rods being provided with a piston and the two pistons belonging to each pair of tamping tools gliding in a common, xed cylinder which is closed at both ends, whereby the cylinder is divided into two outer chambers and one central chamber between the pistons.
  • a track tamping -machine incorporating a tamping tool distance varying mechanism which comprises longitudinally reciplocable piston rods linked to each tamping tool intermediate its ends, the inner ends of two opposing rods being provided with a piston and the two pistons belonging to each pair of tamping tools gliding in a common, xed cylinder which is closed at both ends, whereby the cylinder is divided into two outer chambers and one central chamber between the pistons.
  • Hydraulic fluid pressure is applied to the outer cylinder chambers while hydraulic or pneumatic pressure may be applied to the central chamber. Hydraulic means is used for closing the tamping tools to effect lthe tamping operation, the respective piston rods being moved by applying hydraulic fluid to the outer cylinder chambers. The tamping tools are moved apart or opened by applying pressure to the central cylinder chamber, this pressure being provided preferably by a return spring or compressed air, as desired.
  • tamping tool carrier 2 is slidably supported on posts 3 and 3', which are mounted in carriage frame 1.
  • Eccentric shaft 4 is supported on carrier 2, the shaft axis being parallel to ties 9 supporting track 9 upon which the carriage travels.
  • shaft 4V imparts a reciprocating motion to tamping tool mounting arms 5, the pairs of tamping tools 6 and 6 being pivotably connected at their upper ends to the ends of mounting arms 5.
  • the tamping tools are linked to a pivot pin 7, which enables the spacing of opposing tamping tools to be adjusted in a manner described hereinafter.
  • the lower ends of the tamping tools reach into the ballast 10 at each side of ties 9.
  • ballast is packed under tie 9 when two opposing tamping tools are movedv toward each other, thus exerting pressure on the rocks and pebbles therebetween, while the tools are simultaneously vibrated by rotation of eccentric shaft 4.
  • the tamping tool carrier 2 is vertically movable by adjustable support means 8 (not illustrated in detail), whereby the immersion depth of the tamping tools in the ballast may be changed.
  • adjustable support means 8 not illustrated in detail
  • Each rod 22a carries piston 24 at its inner end, both pistons gliding in common cylinder 47 and thus dividing the cylinder into outer chambers 48 and 49 and central chamber 47a.
  • hydraulic pressure -iuid is directed through conduits 50 Iinto chambers 48 and 49, pistons 24 move toward each other and thus close tamping jaws 6, 6' to elfect the tamping operation.
  • pressure uid preferably compressed air
  • Conduits 50 and 51 also serve to vevacuate the pressureless displaced pressure fluid from the cylinder chambers.
  • each ⁇ piston rod 22a are provided Ywith ribs 22a' which glide 1n corresponding grooves in bushings 52 of tamping tool carrier 2. will prevent vturning Yof the piston rods during operation, which would displace the tainping tools from ,their vertical tamping position.
  • a YsingleLst'aticmzn'y cylinderV for each unit of two pairs of opposing tamping tools, one such unit being arranged at ⁇ each rail.
  • a common -guide rod may be provided for both pistons, the pistons being hollow vand gliding -along the guide rod with an axially hollow piston rod, both piston rods extending and being linked to the tamping tools outside the cylinder.
  • FIGS. 95-7 illustrate the latter embodiment of the invention.
  • each tamping tool is pivotably mounted at 7 on a strong yoke 53.
  • the yoke is mounted on the hollow rod 25 of annular piston 24" and secured thereon by nut 54.
  • TheV hollow piston and piston rods are glidably mounted onV guide rod 22b which is iixedly supported in the tamping tool carrier.
  • Cylinder 47 may be supplied with a pressure fluid through conduits 50 and 51,n respectively, similar'to the first-described embodiment. It is understood that a spring may be provided in the central cylinder chamber or' compressed air may be supplied thereto instead of'hydraulic fluid.
  • a further guide rod 22b' is arranged parallel to and above guide rod 22b, this -further guide rod preventingany pivotal movement of the yoke. rod 22h' with an upwardly extending lug.
  • Guide rod Z211 is supported 'by a center rib 47" and the two end walls of cylinder 47.- Further ⁇ guide rod 22b' is supported in bearings 471) -which :are preferably Acast in one While some preferred embodiments of the ramping tool distance varying mechanism have been described and illustrated in detail, it will be understood that various variants of the described principles may occur to 4 the skilled in the art, particularly after they have had the benefit of Vthe present disclosure, without departing from the spirit and scope yof the present invention as defined in the appended claim.
  • a track tamping machine of the type comprising a wheeled carriage Yfor mobility on the track, a vertically movable 'carrier mounted Yon the carriage, at least one pair of opposingk tamping tools carried by the carrier to reciprocate in a direction substantially parallel to the track, and eccentric shaft means operatively Yconnected to the upper ends of the tamping tools for imparting a vibratory motion to Athe tools: a pressure-operated mechanism for varying the relative distance between the tamping tools of each pair of opposing tools, said mechanism including a stationary cylinder closed at both ends and iixedly mounted on the tamping tool 'carrier between the opposing tools and with its axis Vsubstantially parallel to the track, a fixed guide member having two ends supported in said tarnping tool carrier and passing through said cylinder along the cylinder axis, two opposing hollow piston Vrods reciprocably mounted on said guide member in both cylinder ends, each piston having one end extending into

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US741984A 1954-02-10 1958-06-11 Track tamping machine Expired - Lifetime US3000327A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH334544D CH334544A (de) 1954-02-10 1954-07-28 Fahrbare Gleisstopfmaschine
DEP17375A DE1021402B (de) 1954-02-10 1954-07-28 Gleisstopfmaschine
US571812A US2883941A (en) 1954-02-10 1956-03-15 Vertical adjustment means for tamping tool carrier of railroad ballast tamping machines
US741984A US3000327A (en) 1954-02-10 1958-06-11 Track tamping machine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT334544X 1954-02-10
US462086A US2876709A (en) 1954-10-13 1954-10-13 Track packing or tamping machine
US741984A US3000327A (en) 1954-02-10 1958-06-11 Track tamping machine

Publications (1)

Publication Number Publication Date
US3000327A true US3000327A (en) 1961-09-19

Family

ID=32397309

Family Applications (1)

Application Number Title Priority Date Filing Date
US741984A Expired - Lifetime US3000327A (en) 1954-02-10 1958-06-11 Track tamping machine

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Country Link
US (1) US3000327A (de)
CH (1) CH334544A (de)
DE (1) DE1021402B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429277A (en) * 1966-08-05 1969-02-25 Plasser Bahnbaumasch Franz Ballast tamping assembly
US3826025A (en) * 1970-03-30 1974-07-30 W Elliott Ground engaging unit for ballast tamping machines
WO2017032436A1 (de) * 2015-08-21 2017-03-02 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Stopfaggregat
US20180274178A1 (en) * 2015-11-18 2018-09-27 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Tamping unit and method for tamping a track

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1077687B (de) * 1958-05-21 1960-03-17 Bauunternehmung E Heitkamp G M Zweiachsige, auf dem Gleis fahrbare Gleisstopfmaschine
DE1106790B (de) 1959-04-06 1961-05-18 Windhoff Rheiner Maschf Auf dem Gleis fahrbare Vorrichtung zum Verdichten des Bettungsschotters
DE1124071B (de) 1959-04-29 1962-02-22 Plasser Bahnbaumasch Franz Gleisstopfmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052943A (en) * 1933-08-26 1936-09-01 Schcuchzer Auguste Ballast tamping machine
US2082594A (en) * 1935-11-18 1937-06-01 Frank H Philbrick Machine for digging ballast
AT174393B (de) * 1950-03-01 1953-03-25 Demag Drucklufttech Gleisstopfmaschine
FR1035425A (fr) * 1950-05-03 1953-08-24 Matisa Materiel Ind Sa Dispositif de liaison mobile de machines à bourrer le ballast des voies ferrées avec les files de rails
US2791971A (en) * 1952-08-22 1957-05-14 Meer Ag Maschf Track-packing machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE810033C (de) * 1948-12-10 1951-08-06 Const Mecaniques Sa Renens Geleisstopfmaschine
DE830352C (de) * 1950-03-01 1952-02-04 Frankfurter Maschb A G Vorm Po Gleisstopfmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052943A (en) * 1933-08-26 1936-09-01 Schcuchzer Auguste Ballast tamping machine
US2082594A (en) * 1935-11-18 1937-06-01 Frank H Philbrick Machine for digging ballast
AT174393B (de) * 1950-03-01 1953-03-25 Demag Drucklufttech Gleisstopfmaschine
FR1035425A (fr) * 1950-05-03 1953-08-24 Matisa Materiel Ind Sa Dispositif de liaison mobile de machines à bourrer le ballast des voies ferrées avec les files de rails
US2791971A (en) * 1952-08-22 1957-05-14 Meer Ag Maschf Track-packing machines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429277A (en) * 1966-08-05 1969-02-25 Plasser Bahnbaumasch Franz Ballast tamping assembly
US3826025A (en) * 1970-03-30 1974-07-30 W Elliott Ground engaging unit for ballast tamping machines
WO2017032436A1 (de) * 2015-08-21 2017-03-02 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Stopfaggregat
US20180202113A1 (en) * 2015-08-21 2018-07-19 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Tamping unit
US10563358B2 (en) * 2015-08-21 2020-02-18 Plassser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Tamping unit
US20180274178A1 (en) * 2015-11-18 2018-09-27 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Tamping unit and method for tamping a track
US10633801B2 (en) * 2015-11-18 2020-04-28 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Tamping unit and method for tamping a track

Also Published As

Publication number Publication date
CH334544A (de) 1958-12-15
DE1021402B (de) 1957-12-27

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