US3392678A - Mobile track tamper - Google Patents

Mobile track tamper Download PDF

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Publication number
US3392678A
US3392678A US540082A US54008266A US3392678A US 3392678 A US3392678 A US 3392678A US 540082 A US540082 A US 540082A US 54008266 A US54008266 A US 54008266A US 3392678 A US3392678 A US 3392678A
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United States
Prior art keywords
track
tamping
gripping
ballast
tamper
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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
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US540082A
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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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Publication date
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Application granted granted Critical
Publication of US3392678A publication Critical patent/US3392678A/en
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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
    • 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
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/10—Track-lifting or-lining devices or methods
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/12—Tamping devices
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/16—Guiding or measuring means, e.g. for alignment, canting, stepwise propagation

Definitions

  • the tamping tool assembly is designed to tamp the ballast underneath the graded ties so as to X the graded track in position
  • the well known and preferred assembly illustrated herein includes a pair of vibratory tools spaced from each other in the direction of alongation of the track and opposing tools of each pair being arranged for immersion in a ballast space adjacent a selected tie to be tamped.
  • the ballast underneath the selected tie is compacted between the tools.
  • the frame comprises a forward portion overhanging the ballast space whereinto the tamping tools are immersed forwardly of the front wheels, and the tamping tool assembly and the track lifting means are mounted on the forward frame portion,
  • the track lifting means is arranged at a distance from the tamping tool assembly, usually at the front end of the frame, so that the track grade at the point of lifting actually differs from that at the point of tamping. This difference increases with the spacing of lifting from tamping means so that the track must be lifted higher than the desired grade at which the selected tie is to be xed. This obviously entails inaccuracies in the grading operation,
  • FIG. l is a schematic side view of a track grading machine according to the invention.
  • FIG. 2 is an enlarged elevational view of a preferred track gripping part shown engaging a track switch
  • FIG. 3 is a similar elevational view showing the same track gripping part engaging a straight track rail.
  • the illustrated machine is adapted for grading track switching points, which is a particularly advantageous application of the invention.
  • the ballast 4 supports track ties 3 on which rest the track rails 2, 2, as well as the switch rails 2.1, 22 (see FIG. 2).
  • the tamper frame 1 is mounted on front and rear wheels for mobility on the track, the wheels running on the track rails of a previously graded track section.
  • a tamping tool assembly 5 is vertically adjustably mounted on a forward portion of the tamper frame overhanging the ballast spaces adjacent selected tie 3' to be tamped forwardly of the front wheels.
  • the structure and operation of the tamping tool assembly may be entirely conventional.
  • the apparatus indicating the grade track also may be conventional and that illustrated herein includes the usual front bogie 7 running on the track ahead of the tamper and carrying a rst end point 8 of a reference line 9 eX- tending to a second end point 10 which is xed in relation to the previously graded track section. These end points may be constituted by a sender and receiver, respectively, of a visible or invisible beam of radiant energy, which beam constitutes the reference line.
  • the track grading indicating apparatus includes two grade measuring elements, each constituted by a rod vertically movably mounted in the frame and having one end resting on a rail 2 so as to move up with the rail when the latter is lifted.
  • the first grade measuring rod 13 is mounted forwardly of and adjacent the track gripping part 18 and the second grade measuring rod 13' is mounted rearwardly of and adjacent the tamping tool assembly 5.
  • a rod 12 is linked to the measuring rods 13, 13 for movement therewith and the rod 12 carries a stop or target board 11 mounted for cooperation with the reference line 9.
  • the means for lifting the track to the desired grade at the point of tamping, where- ICC by the track is accurately fixed in the graded position is
  • the illustrated track lifting means includes a carrier arm 17 extending in the direction of elongation of the track and pivoted at one end to frame 1.
  • a motor means for raising and lowering the carrier arm about the pivoted end engages the other end of the ⁇ carrier arm, the illustrated motor means being a hydraulic motor 16 lwhose cylinder is mounted o n the overhanging frame portion and whose piston rod is attached to the other end of the carrier arm.
  • the carrier arm may be pivoted in a plane extending in the direction of track elongation.
  • the preferred track gripping part which is attached to the pivotal carrier arm near the end of the arm remote from its pivoting fulcrum, is shown in detail in FIGS. 2 and 3. It includes a pair of track gripping jaws 17', 17 which hold rail engaging clamps 18', 18 designed to engage the widened base 22 of the rails.
  • a hydraulic motor 23 interconnects the upper ends of the gripping jaws, with its cylinder linked to one jaw and piston rod linked to the other jaw, for pivoting the track gripping jaws in the transverse plane perpendicular to the direction of track elongation, in which the jaws are positioned, into and out of gripping engagement with the track.
  • This illustrated structure is particularly simple in construction and operation.
  • the gripping part has been shown to be positioned in the range of ballast space 19, a similar effect could obviously be achieved by positioning it between the pair of opposing tamping tools 14 of the tamping tool assembly or in the range of the ballast space 19.
  • the -illusrated positioning of the track gripping part is particularly advantageous because it constitutes the best possible distribution of forces on the carrier arm and, furthermore, since it is mounted between the operators station of the track grading machine and the tamping tool assembly, it makes accurate visual control by the operator possible.
  • the operator may carefully control the tamping and lifting operations from control panel 6 in a manner known per se and forming no part of the present invention.
  • the track lifting means of the present invention is particularly useful for lifting the track at a switch point and, generally, for grading track sections where rails run into each other and various irregularities are encountered.
  • track tampers for such work have made use of special tamping tool assemblies. These assemblies include opposing tamping tools whose upper parts are associated with conventional means for vibrating and reciprocating the same in the direction of track elongation.
  • the lower parts of the tools, which carry the ballast picks, are pivotally mounted on the upper parts, hydraulic motors 24 being associated with the lower parts to enable them to be pivoted about fulcrum 15 out of the range of the track in a plane transverse and perpendicular to the reciprocating direction of the opposing tools.
  • the entire track gripping part is mounted on the carrier arm 17 for pivoting into an operating position adjacent the track and out of the operating position in a plane extending in the direction of track elongation, the illustrated mounting arrangement including a bearing axle 4rotatably journaled in the carrier arm.
  • the track gripping part is pivoted into its operation position adjacent the track.
  • the tamping tool assembly is lowered into the tamping position with the lower parts of the tamping tools immersed in ballast spaces 19 and 19.
  • the carrier arm 17 of the track lifting means is lowered while the gripping jaws 17' are kept in open position.
  • the clamps are closed to grip the rails and carrier arm 17 is pivoted upwardly to lift the track to the desired grade.
  • the tamping tools immersed in the ballast are now operated to tamp the ballast underneath the tie and thus to fix the same in the graded position.
  • the carrier arm is upwardly pivoted, with the gripping jaws opened so as to be disengaged from the track rails.
  • one of the gripping jaws 18 progressively engages the switch rails 21, 22 while the other gripping jaw 18 engages rail 2.
  • the machine may be used for continuous grading of straight track sections interrupted by switch points and/ or other obstructions.
  • track gripping clamps 18', 18 narrow To enable the track gripping part to be positioned within the range of a ballast space between two ties, which must also accommodate a tamping tool immersed therein, it is necessary to make the track gripping clamps 18', 18 narrow.
  • these clamps need not necessarily take the illustrated form of hooks but could be rollers or other suitable rail engaging elements.
  • a mobile track tamper for tamping the ballast supporting track ties comprising (1) a frame mounted on front and rear wheels for mobility on the track and comprising a forward portion overhanging said ballast space forwardly of said front wheels,
  • a tamping tool assembly vertically adjustably mounted on the forward frame portion and including a tamping tool having a lower part whose end is arranged for immersion in said ballast space upon vertical adjustment of the tamping tool assembly
  • a track lifting means mounted on the forward frame portion, the track lifting means including a pair of rail gripping jaws operable to subtend a Vrespective rail of the track in the range of said ballast space, said track gripping jaws being positioned in a plane transverse and perpendicular to the direction of elongation of the track,
  • the tamping tool includes an upper part, and further including means for vibrating and reciprocating the upper part in the direction of elongation of the track, and means for pivotally mounting the lower tool part on the upper tool part whereby the lower tamping tool part may be pivoted out of the range of the track.
  • the track lifting means includes a carrier arm extending in the direction of elongation of the track and pivoted at one end to the forward frame portion, and a motor means for raising and lowering the carrier arm about the pivoted end, the track gripping jaws being attached to the carrier arm.
  • the mobile track tamper of claim 1 further comprising means for pivoting the track gripping jaws into an operating position adjacent the track and out of said operating position in a plane extending in the d-irection of elongation of the track.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US540082A 1965-04-07 1966-04-04 Mobile track tamper Expired - Lifetime US3392678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT321465A AT280332B (de) 1965-04-07 1965-04-07 Gleisstopfmaschine

Publications (1)

Publication Number Publication Date
US3392678A true US3392678A (en) 1968-07-16

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ID=3547118

Family Applications (1)

Application Number Title Priority Date Filing Date
US540082A Expired - Lifetime US3392678A (en) 1965-04-07 1966-04-04 Mobile track tamper

Country Status (4)

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US (1) US3392678A (de)
AT (1) AT280332B (de)
CH (1) CH472542A (de)
GB (1) GB1139982A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248154A (en) * 1978-05-11 1981-02-03 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track tamping machine with lifting and lining equipment
US4265109A (en) * 1975-10-25 1981-05-05 C. Plath Kg Wrench with angular rotation readout
US4947757A (en) * 1988-02-23 1990-08-14 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Method and machine arrangement for working in a track switch section
CN101929113A (zh) * 2009-06-23 2010-12-29 芮茵赫有限公司 建造移动式轨道的方法及其设备
CN110629604A (zh) * 2019-10-25 2019-12-31 南京爱默升能源技术有限公司 一种轨道维护用捣固装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394742B (de) * 1990-02-06 1992-06-10 Plasser Bahnbaumasch Franz Gleisstopfmaschine
CN109403167B (zh) * 2018-12-18 2020-12-04 中国铁建重工集团股份有限公司 一种钢轨焊复工程用钢轨拨弯小车
CN115158392B (zh) * 2022-06-10 2023-07-11 杭州申昊科技股份有限公司 一种基于轨道探伤车驱动装置的复位机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986100A (en) * 1958-02-26 1961-05-30 Kershaw Mfg Company Inc Railoway crosstie detector
US3149578A (en) * 1959-10-20 1964-09-22 Plasser Franz Mobile track lifting apparatus
US3153390A (en) * 1960-02-16 1964-10-20 Plasser Franz Track lifting machine
US3177813A (en) * 1960-09-09 1965-04-13 Stewart John Kenneth Railroad maintenance device
US3192871A (en) * 1963-02-25 1965-07-06 Nordberg Manufacturing Co Rail lifter
US3301198A (en) * 1963-12-09 1967-01-31 Messrs Franz Plasser Bahnbauma Device for levelling track

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986100A (en) * 1958-02-26 1961-05-30 Kershaw Mfg Company Inc Railoway crosstie detector
US3149578A (en) * 1959-10-20 1964-09-22 Plasser Franz Mobile track lifting apparatus
US3153390A (en) * 1960-02-16 1964-10-20 Plasser Franz Track lifting machine
US3177813A (en) * 1960-09-09 1965-04-13 Stewart John Kenneth Railroad maintenance device
US3192871A (en) * 1963-02-25 1965-07-06 Nordberg Manufacturing Co Rail lifter
US3301198A (en) * 1963-12-09 1967-01-31 Messrs Franz Plasser Bahnbauma Device for levelling track

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4265109A (en) * 1975-10-25 1981-05-05 C. Plath Kg Wrench with angular rotation readout
US4248154A (en) * 1978-05-11 1981-02-03 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track tamping machine with lifting and lining equipment
US4947757A (en) * 1988-02-23 1990-08-14 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Method and machine arrangement for working in a track switch section
CN101929113A (zh) * 2009-06-23 2010-12-29 芮茵赫有限公司 建造移动式轨道的方法及其设备
CN110629604A (zh) * 2019-10-25 2019-12-31 南京爱默升能源技术有限公司 一种轨道维护用捣固装置

Also Published As

Publication number Publication date
DE1534088A1 (de) 1969-06-12
DE1534088B2 (de) 1975-11-20
AT280332B (de) 1970-04-10
CH472542A (de) 1969-05-15
GB1139982A (en) 1969-01-15

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