US3717100A - Movable tamping machines for railroads - Google Patents

Movable tamping machines for railroads Download PDF

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Publication number
US3717100A
US3717100A US00143365A US3717100DA US3717100A US 3717100 A US3717100 A US 3717100A US 00143365 A US00143365 A US 00143365A US 3717100D A US3717100D A US 3717100DA US 3717100 A US3717100 A US 3717100A
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Prior art keywords
tamping
vehicle
devices
tamping devices
carrier
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Expired - Lifetime
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US00143365A
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English (en)
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H Sieke
R Sieke
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Individual
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    • 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

  • ABSTRACT A tamping machine for railroad beds comprise-Isa car running on the rails of the railway and a plurality of individually operable tamping devices mounted on a common carrier in the car and means for moving the carrier relative to the car so that while they are in operation the tamping devices are moved rearwardly relative to the car at the same speed that the car is moving forwardly on the rails.
  • the tamping devices are thus stationary relative to the ground while operating even though the car is moving.
  • a tamping device When a tamping device has completed its tamping operation, it is raised and moved forwardly in the car to a position where it is again lowered to operating position. Rapid and continuous tamping of the road bed is thereby achieved.
  • the present invention relates to movable tamping machines for railroads and is more specifically drawn to devices for tamping comprising several tampers spaced apart from one another.
  • Known machines for tamping the road bed are equipped with several tamping devices which are mounted on the truck or chassis of a rail car and are movable in the direction of the roadbed.
  • the tamping devices are constructed integral with the truck or chassis as a unit which is movable in both directions of the track.
  • the truck remains stationary and is moved to a new position once the operation has been completed. This process is then repeated.
  • the unit is moved and stopped stepwise along the roadbed until the operation is completed.
  • the present invention avoids these disadvantages and provides a continuously operating roadbed tamping machine.
  • the invention stems from a recognition that through a continuously forwardly moving tamping machine an unexpectedly great increase in efficiency is obtained because not only is the time for starting, moving forward and stopping of the vehicle is saved, but also because at the same time tamping devices can plunge into the ballast at the beginning of their operation and be withdrawn out of the roadbed at the end while other tamping devices are carrying out their tamping operation.
  • the tamping devices are arranged on a common movable carrier which is provided in the vehicle and is moved rearwardly at the same speed that the vehicle is moved forwardly.
  • the vehicle can move forwardly continuously during the operation of the tamping devices.
  • some of the tamping devices are stationary over the roadbed and perform their tamping operation as well as the to and fro movement incident thereto.
  • Another embodiment of the device comprises a revolving chain whose links serve as supports for the tampers.
  • This construction has an advantage in that a plurality of tampers can be brought into direct contact with the roadbed at substantially the same time, so that in this manner there is provided a movable tamping device having an especially high operating speed. Therefore, a large number of tampers are not required.
  • the wheels on which the chain moves may be of small diameter so that the endless chain may be relatively short.
  • Another embodiment provides tamping devices individually guided by rails and moved by a common chain or a common wheel mechanism.
  • the tampers are stabilized by their weight and the pairing of the tamping tools, so that a special arrangement to provide a continual alignment of the tampers during operation is usually unnecessary.
  • One such means provides two large revolving wheels having vertical axes arranged one above the other.
  • Another means provides a chain transmission operating between a stationary cogwheel and a cogwheel fixed to the tamping device.
  • Still another means for providing alignment uses three interacting gear wheels having the same number of teeth.
  • the central one is in a fixed position, the second is attached to the tamping device, and rotatable on a centrally journaled carrier on which at the same time the third gear wheel is rotatably arranged.
  • the height of the tools In order not to interrupt the continuous operation of the machine when there are cable conduits or the like under the roadbed it is desirable for the height of the tools to be individually adjustable so that the tools do not go down at a place where there is a conduit.
  • FIG. 1 illustrates a movable tamping machine in which the tampers are caused and moved by an endless chain
  • FIG. 2 illustrates a tamping machine in which the tampers are suspended from a large wheel
  • FIG. 3 is a detailed view of one of the tampers of FIG. 2;
  • FIG. 4 illustrates means for maintaininga proper alignment of the tamping device
  • FIG. illustrates another means of maintaining such alignment.
  • the vehicle or car 1 in FIG. 1 carries two revolving wheels 2 which carry an endless chain 3.
  • Each link of this chain serves to carry a tamper 4 comprised of two tamping picks 5 and a hydraulic driving mechanism 6.
  • a tamper 4 comprised of two tamping picks 5 and a hydraulic driving mechanism 6.
  • the tampers come into contact with the roadbed.
  • the tamping is performed, and in the rear of the car the tampers are raised from the roadbed.
  • FIG. 2 shows another mechanism which uses a large wheel 9 to carry the tampers.
  • the circumferential speed of the wheel corresponds to the speed of the car la.
  • the tampers are sunk into the roadbed 7 for a time. While one tamper is operating another tamper is about to be lowered into the roadbed while the tamper which has completed its work is being lifted.
  • each tamper is provided with an individual operating cylinder 10 so that the tampers can be kept in a raised position when necessary, for example when a cable conduit under the roadbed is not to be disturbed.
  • FIG. 4 illustrates the use of a fixed gear 16, a gear 17 attached to the tamper, and a chain 18 to maintain proper alignment of the mechanism when the tamper is suspended from and moved by a wheel as in FIG. 2.
  • FIG. 5 illustrates another means for keeping the tamper in proper alignment when the tamper is suspended from a wheel.
  • the tamper is provided with a pair of rollers 20 and 21 which move on a pair of nonconcentric rails 19 and 19a.
  • the car and the tamping device are driven by the same motor 22 through a gear box 23.
  • Shaft 24 is connected to the wheels of the tamping device and shaft 25 to the wheels of the car.
  • gears in the gear box it is possible to continually vary the speeds of the shafts 24 and 25.
  • a tamping machine for railway roadbeds comprising a vehicle movable along the rails, means for moving said vehicle along the rails at a selected speed, carrier means provided in said vehicle, a plurality of tamping devices carried in selected fixed relation on said carrier means, each of said tamping devices comprising a tamping tool and driving means for operating said tool, said carrier means including at least one rotatable wheel means mounted on said vehicle for rotation about a horizontal axis transverse to the direction of movement of the vehicle and means for rotating said wheel means to move said tamping devices continuously in a closed circuit comprising in sequence a lower portion in which said tamping devices are in operative position relative to said roadbed and are moved rearwardly of the vehicle at a speed equal to the forward speed of the vehicle, a rear portion in which said tamping devices are raised to inoperative position, an upper portion in which said tamping devices are moved forwardly of the vehicle and a forward portion in which said tamping devices are lowered toward operative
  • a tamping machine in which said carrier means comprises a large wheel on the periphery of which said tamping devices are mounted, said wheel being mounted in said vehicle for rotation about a horizontal axis transverse to said vehicle.
  • a tamping machine in which said carrier means comprises a link chain running on two wheels spaced forwardly and rearwardly respectively in said vehicle and rotating about horizontal axis transverse of said vehicle, said tamping devices being mounted on links of said chain.
  • a tamping machine in which the means for operating said tamping devices comprises a hydraulic cylinder for each said tamping device and control means for selectively supplying pressure fluid to said cylinders to actuate said tamping devices individually and selectively.
  • a tamping machine comprising means for guiding and holding said tamping devices in a selected direction with their tamping tools down when in operative position.
  • a tamping machine in which said guiding and holding means comprise spaced guiding rails along which said tamping devices are movable.
  • a tamping machine in which said carrier means is a large wheel on which said tamping devices are pivotally mounted and in which said guiding and holding means comprises a first sprocket coaxial with said wheel, a second sprocket fixed to each said tamping device and coaxial with said pivotal mounting and a chain interconnecting said first and second sprockets.
  • a tamping machine in which said carrier means comprises a link chain on the links of which said tamping devices are mounted and in which said guiding and holding means comprises means for guiding the links of said chain.
  • a tamping machine in which said carrier means and said guiding and holding means comprises two large wheels rotatable on horizontal axis transverse of said vehicle and disposed vertically one above another, each said tamping device being pivotally connected to both of said wheels in such a manner that it is held vertical when in operative position.
  • a tamping machine in which said guiding and holding means comprises three intermeshing gears of which the first gear is centrally disposed and stationary, the second gear is fixed to the tamping device and the third gear is rotatably mounted 5 on a carrier which is rotatable about an axis concentric with said first gear.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US00143365A 1970-05-16 1971-05-14 Movable tamping machines for railroads Expired - Lifetime US3717100A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702024168 DE2024168A1 (de) 1970-05-16 1970-05-16 Auf Eisenbahnschienen verfahrbare Gleisstopfmaschine

Publications (1)

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US3717100A true US3717100A (en) 1973-02-20

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ID=5771378

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US00143365A Expired - Lifetime US3717100A (en) 1970-05-16 1971-05-14 Movable tamping machines for railroads

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US (1) US3717100A (es)
AT (1) AT314583B (es)
CH (1) CH521478A (es)
DE (1) DE2024168A1 (es)
FR (1) FR2091625A5 (es)
GB (1) GB1306005A (es)
SE (1) SE376637B (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090451A (en) * 1975-02-27 1978-05-23 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track tamping machine that tamps three successive cribs
US4249468A (en) * 1978-06-19 1981-02-10 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track tamping machine
US4382715A (en) * 1979-07-17 1983-05-10 Koehring Gmbh - Bomag Division Mass compensated impacting apparatus
US4449459A (en) * 1981-01-23 1984-05-22 Canron Corp. Pivoting head continuous tamper
US4637314A (en) * 1985-06-20 1987-01-20 Gower David I Railroad spike resinstallation apparatus
WO2010100127A1 (en) 2009-03-04 2010-09-10 Novartis Ag Disubstituted imidazole derivatives as modulators of raf kinase

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE13118C (de) * COMPAGNIE DE NAVIGATION ECONOMIQUE in Paris Neuerungen an Generatoren für Dampf und für überhitztes Wasser
US2497682A (en) * 1950-02-14 Railroad ballast tamper and equalizer
US2938439A (en) * 1957-12-09 1960-05-31 Fred A Robison Earth tamping roller
US3380395A (en) * 1964-11-30 1968-04-30 Plasser Bahnbaumasch Franz Apparatus for tamping ballast
US3504635A (en) * 1968-01-15 1970-04-07 Canada Iron Foundries Ltd Workhead positioning means
US3595170A (en) * 1968-01-02 1971-07-27 Plasser Bahnbaumasch Franz Mobile track tamper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE13118C (de) * COMPAGNIE DE NAVIGATION ECONOMIQUE in Paris Neuerungen an Generatoren für Dampf und für überhitztes Wasser
US2497682A (en) * 1950-02-14 Railroad ballast tamper and equalizer
US2938439A (en) * 1957-12-09 1960-05-31 Fred A Robison Earth tamping roller
US3380395A (en) * 1964-11-30 1968-04-30 Plasser Bahnbaumasch Franz Apparatus for tamping ballast
US3595170A (en) * 1968-01-02 1971-07-27 Plasser Bahnbaumasch Franz Mobile track tamper
US3504635A (en) * 1968-01-15 1970-04-07 Canada Iron Foundries Ltd Workhead positioning means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090451A (en) * 1975-02-27 1978-05-23 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track tamping machine that tamps three successive cribs
US4249468A (en) * 1978-06-19 1981-02-10 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track tamping machine
US4382715A (en) * 1979-07-17 1983-05-10 Koehring Gmbh - Bomag Division Mass compensated impacting apparatus
US4449459A (en) * 1981-01-23 1984-05-22 Canron Corp. Pivoting head continuous tamper
US4637314A (en) * 1985-06-20 1987-01-20 Gower David I Railroad spike resinstallation apparatus
WO2010100127A1 (en) 2009-03-04 2010-09-10 Novartis Ag Disubstituted imidazole derivatives as modulators of raf kinase

Also Published As

Publication number Publication date
GB1306005A (es) 1973-02-07
DE2024168A1 (de) 1971-12-02
AT314583B (de) 1974-04-10
SE376637B (es) 1975-06-02
CH521478A (de) 1972-04-15
FR2091625A5 (es) 1972-01-14

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