US3625156A - Ballast tamping workhead - Google Patents

Ballast tamping workhead Download PDF

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Publication number
US3625156A
US3625156A US855579A US3625156DA US3625156A US 3625156 A US3625156 A US 3625156A US 855579 A US855579 A US 855579A US 3625156D A US3625156D A US 3625156DA US 3625156 A US3625156 A US 3625156A
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United States
Prior art keywords
blades
rail
combination
carriers
ballast
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
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US855579A
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English (en)
Inventor
James E Anderson
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.)
JACKSON VIBRATORS Inc
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JACKSON VIBRATORS Inc
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Publication date
Application filed by JACKSON VIBRATORS Inc filed Critical JACKSON VIBRATORS Inc
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Publication of US3625156A publication Critical patent/US3625156A/en
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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

  • ABSTRACT A ballast tamping workhead having tamping blades rigidly fixed to high-frequency vibratory motors that are carried, through compression-loaded insulating I mountings, for up and down movement and swinging movement both toward the rail and toward the ties. Actuation of the workhead drives the vibrating blades into the ballast on either side of a tie, forces the blades in a squeezing action toward the rail, and then forces the blades in a further squeezing action toward and under the tie.
  • This invention relates to railroad ballast tamping machines and more particularly concerns a workhead for such machines.
  • ballast such as crushed rock or stone. ln building or maintaining a track, the ballast must be positioned and compacted under the ties to hold the rails in proper position both horizontally and laterally. The most critical ballast region is beneath the tie portions that lie directly under the rails since this region bears the bulk of the traffic loads.
  • Another object of the invention is to provide a tamping workhead of the above character which positively and directly acts on the critical ballast region beneath the tie portions under the rails. Stated another way, not only is high-frequency vibration imparted to the ballast being tamped, but a squeezing action is developed both from opposite sides and toward the tie, and from opposite sides and toward the rail.
  • a further object is to provide a tamping workhead as characterized above which is well suited for the rough, heavyduty use to which such equipment is normally subject.
  • FIG. 1 is a side elevation of a portion of a tamper embodying the invention
  • FIG. 2 is an enlarged fragmentary elevation taken approximately along the line 2-2 of FIG. 1;
  • FIG. 3 is an enlarged side elevation of a portion of the structure shown in FIG. 1 with the parts in a different operating position;
  • FIG. 4 is an enlarged fragmentary section taken along the line 4-4 in FIG. 3;
  • FIG. 5 is a diagrammatic plan showing the movement of the tamper blades in the tamper of the invention.
  • FIG. 6 is a simplified hydraulic diagram showing the actuating circuits for the structure of FIG. 1.
  • FIG. 1 there is shown a portion of a tamper 10 having a frame 11 adapted to move along a railroad track 12.
  • the track 12 includes a pair of rails 13, only one of which is shown, mounted on a plurality of crossties 14 placed in ballast 15.
  • the tamper l0 rides on flanged wheels 16 which are journaled on the frame 11 for guiding the tamper along the track 12.
  • the tamper includes a pair of workheads, of which only the workhead 20 over the rail 13 is illustrated. It will be understood that, preferably, a similar workhead is mounted on the tamper 10 over the opposite rail which does not appear in the drawings.
  • a pair of generally vertical guides in the form of rods 21 are fixed to the tamper frame 11 longitudinally of the track 13, and the workhead 20 includes a crosshead 22 mounted on the rods 21 for vertical sliding movement above the rail 13.
  • the crosshead 22 is formed by generally square sideplates 23 sandwiching bearing sleeve assemblies 24 at their four corners which slide on the rods 21.
  • a pair of boxlike arms 25 are fixed to the sideplates 23 and extend laterally of the rail 13 from either side of the rods 21.
  • a double-acting hydraulic actuator 26 is anchored at 27 to the frame 11 between the guide rods 21 with the end of its piston rod being secured at 28 to cars 29 extending upwardly from the crosshead sideplates 23.Extending the actuator 26 raises the crosshead 22, and contracting the actuator drives the crosshead downwardly.
  • a hook 30 (see FIG. 1) is pivoted on the frame 11 to engage a pin on the crosshead to lock the crosshead in raised position for transport.
  • the crosshead 22 carries four high-speed vibratory motors 35 mounting blades 36 which, when tamping, are moved down into the ballast 15, in toward and under the rail 13, and then squeezing toward and under the tie 14.
  • the blades 36 move along the paths 37 shown in FIG. 5.
  • the crosshead actuator 26 moves the blades 36 into and out of the ballast 15.
  • a pair of depending supports 41 are pivoted on axes 42 on the crosshead arms 25 for swinging movement down and toward the rail 13.
  • Each support 41 includes a short beam 43 and pairs of depending plates 44.
  • a pair of double-acting hydraulic actuators 45 are anchored to the crosshead with their piston rods connected to respective ones of the supports 41 so as to hold the supports in this FIG. 2 position and to also swing the supports along the arcs 46, thus carrying the blades 36 toward and under the rail 13.
  • two pairs of motor carriers 50 are mounted on the crosshead 22 with one pair being pivoted on a common axis 51, at the lower end of each of the depending support plates 44, for swinging movement down and toward opposite sides of a tie 14.
  • Each motor carrier 50 is controlled by a double-acting hydraulic actuator 52 connected between the support beam 43 and the respective carriers 50.
  • the motor carriers 50 are formed as boxlike frames containing the vibratory motors 35.
  • the motors are electrically powered and are positioned with their rotors paralleling the ties l4 and having eccentrics at each rotor end so that forceful, high-frequency oscillatory vibration preferably on the order of 4,500 v.p.m. is created parallel to the rail 13.
  • compression-loaded mounting assemblies 53 secure each motor 36 at its four corners within its respective carrier 50.
  • Each assembly 53 sandwiches a pair of mounting lugs 54 secured to the carrier 50 between upper and lower motor mounting plates 55 and 56, respectively.
  • a bolt 57 surrounded by steel sleeves 58 with an intermediate washer 59 runs between the motor mounting plates 53 and through holes in the lugs 54 so that drawing the bolt 57 tightly locks the plates 55, 56, sleeves 58 and washer 59 rigidly.
  • a pair of elastic T- shaped grommets 61 are fitted over the sleeves 58 with their heads between the plates 55, 56 and the adjacent one of the lugs 54.
  • two blades 36 are fixed to each motor 35 through a bracket 65, with the blades 36 having flat, working ends or pads 66 mounted on shanks 67 with V- shaped cross sections, and the four blade working ends 66 closest to the rail 13 are angled so as to face, in a horizontal plane, the intersection of the rail and tie (see H6. 5).
  • the tamping work is done by the working ends or pads 66 with the V-shaped shanks 67 simply cutting through the ballast 15, and the working ends 66 compact the ballast in the most important regions under the tie and, in particular, under that portion of the tie beneath the rail 13.
  • FIG. 6 which includes corresponding actuators 26', 45' and 52' for performing corresponding functions with a workhead, not illustrated, which operates over the opposite rail.
  • the workheads may be operated independently of each other, and in describing the controls for the workhead 20, the corresponding parts for the opposite workhead will be given the same reference numeral with a prime mark added.
  • the tamper operator institutes a tamping cycle by energizing electrically controlled three-way valves 71 and 71' so that, when the valves shift downwardly as shown schematically, fluid pressure is directed from a supply 72 to the ends of the actuators 26, 26' that cause them to contract. This drives the crossheads including the crosshead 22 downwardly.
  • Pressure relief valves 73 and 73' control the amount of down pressure available to the actuators 26, 26'. When the valves 73, 73' open at their set pressures, fluid is returned directly from the supply 72 to a return line 74.
  • sequence valves 75 and 75' send fluid under pressure to the actuators 45, 45' after a predetermined amount of pressure is developed in the actuators 26, 26'.
  • the blades 36 are first driven down into the ballast and then, at a down pressure determined by the setting of the valves 75, 75 the actuators 45 are energized to tilt the supports 41 and drive the blades 36 toward and under the rail 13.
  • An overload valve 76 and a pair of check valves 77 are provided in the circuit as safety factors.
  • the actuators 52, 52' are brought into play by the switch 79 controlling a two-way valve 81 that directs fluid to the actuators 52.
  • a similar valve 81' controls the actuators 52'. Energizing the valve 81 causes the actuators 52 to drive the blades 36 in a squeezing action toward and under a tie 14.
  • the actuators 52, 52 receive fluid under pressure from accumulators 82 and 82, respectively, which are kept charged by piloted valves 83 and 83'.
  • the piloted valves 83, 83" deliver hydraulic fluid to the actuators 82, 82' until their set pressure is reached, whereupon fluid is bypassed from the supply 72 through a line 84 to the return line 74.
  • the tamping blade squeezing action is quick and powerful, and is not directly dependent upon the supply of fluid from the line 72.
  • the squeezing action of the blades 36 under a tie 14 is limited by hydraulic pressure sensitive switches 85 and 85 which, when the operator set pressure is reached, open the circuits to the solenoids controlling the valves 81, 81 and thus allow these valves to be restored and the actuators 52, 52' to return to their initial positions.
  • the amount of squeezing pressure exerted by the blades 36 is thus controlled by setting the switches 85, 85, which can be done by the tamper operator.
  • the tamper operator by controlling the three-way valves 71, 71' can make repeated tamping insertions of the blades 36 into the ballast 15 and then raise the workhead for movement over the next tie 14. With each insertion, the sequential action bringing the actuators 45, 45' and then the actuators 52 and 52 into operation is repeated.
  • the workhead 20 effectively combines true high-frequency vibration tamping with effective and forceful squeeze-type tamping. This has been attained in a rugged structure well suited for heavy-duty, production use on railroad track.
  • the blades 36 are mounted and moved in a fashion which insures proper tamping not only beneath the ties but also beneath that critical portion of the tie that underlies the track rails.
  • a tamping workhead comprising, in combination, generally vertical guides mounted on said frame, a crosshead mounted on said guides for generally vertical movement above said rail, a pair of depending supports pivoted on said crosshead for swinging movement down and toward said rail, two pairs of motor carriers with one pair being pivoted at the lower end of each of said supports for swinging movement down and toward opposite sides of one of said ties, four highspeed vibratory motors mounted one on each of said motor carriers so as to produce oscillatory vibration parallel to said rail, blades affixed to each of said motors, means for moving said crosshead down so as to drive said blades into the ballast on either side of a tie, means for positively swinging both of said supports so as to tilt said blades under pressure toward and under the rail, and means for positively swinging all four of said carriers so as to move the blades under pressure toward and under said tie.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US855579A 1969-09-05 1969-09-05 Ballast tamping workhead Expired - Lifetime US3625156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85557969A 1969-09-05 1969-09-05

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US3625156A true US3625156A (en) 1971-12-07

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US855579A Expired - Lifetime US3625156A (en) 1969-09-05 1969-09-05 Ballast tamping workhead

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US (1) US3625156A (fr)
AT (1) AT315891B (fr)
CH (1) CH537492A (fr)
FR (1) FR2060996A5 (fr)
GB (1) GB1275250A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811382A (en) * 1971-07-07 1974-05-21 Matisa Materiel Ind Sa Process for packing and leveling railway tracks and device for performing the same
US3885883A (en) * 1972-03-21 1975-05-27 Helmut Sieke Method and apparatus for compacting earth, sand, gravel, ballast and similar materials
US4062292A (en) * 1975-10-22 1977-12-13 Jackson Vibrators, Inc. Utility tamper workhead
US4096806A (en) * 1975-11-17 1978-06-27 Graystone Corporation Track tamper with hingeable unitary pivotable tamping unit
US4134342A (en) * 1976-09-16 1979-01-16 Nippon Kokuyu Tetsudo Ballast tamping apparatus
US4218978A (en) * 1977-02-18 1980-08-26 Matisa Materiel Industriel S.A. Apparatus for tamping or packing the bed of railway tracks
US4440089A (en) * 1980-10-29 1984-04-03 Canron Inc. Railway track ballast tamping device
US4476786A (en) * 1981-03-09 1984-10-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Ballast tamping machine
US4744304A (en) * 1986-02-18 1988-05-17 Kershaw Manufacturing Co., Inc. Railway track tamping machine
US4744303A (en) * 1986-02-27 1988-05-17 Kershaw Manufacturing Co., Inc. Railway track tamping machine
CN109577114A (zh) * 2013-02-22 2019-04-05 Hp3真实有限责任公司 用于轨道捣固机的捣固设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2378443C1 (ru) * 2008-04-21 2010-01-10 Общество с ограниченной ответственностью "Путевые машины" (ООО "Путевые машины") Устройство для уплотнения балласта железнодорожного пути
AT16891U1 (de) * 2018-11-15 2020-11-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Stopfaggregat zum Stopfen eines Gleises

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2107639A (en) * 1932-07-01 1938-02-08 Robert E Madison Railway ballasting machine
US2734463A (en) * 1956-02-14 Railway track ballast tamping apparatus
US2887066A (en) * 1955-12-23 1959-05-19 Nordberg Manufacturing Co Method and machine for tamping railway ballast
US2899909A (en) * 1959-08-18 Ballast tamping machine
US3177813A (en) * 1960-09-09 1965-04-13 Stewart John Kenneth Railroad maintenance device
US3387567A (en) * 1966-01-26 1968-06-11 Jackson Vibrators Tamper blade suspension assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734463A (en) * 1956-02-14 Railway track ballast tamping apparatus
US2899909A (en) * 1959-08-18 Ballast tamping machine
US2107639A (en) * 1932-07-01 1938-02-08 Robert E Madison Railway ballasting machine
US2887066A (en) * 1955-12-23 1959-05-19 Nordberg Manufacturing Co Method and machine for tamping railway ballast
US3177813A (en) * 1960-09-09 1965-04-13 Stewart John Kenneth Railroad maintenance device
US3387567A (en) * 1966-01-26 1968-06-11 Jackson Vibrators Tamper blade suspension assembly

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811382A (en) * 1971-07-07 1974-05-21 Matisa Materiel Ind Sa Process for packing and leveling railway tracks and device for performing the same
US3885883A (en) * 1972-03-21 1975-05-27 Helmut Sieke Method and apparatus for compacting earth, sand, gravel, ballast and similar materials
US4062292A (en) * 1975-10-22 1977-12-13 Jackson Vibrators, Inc. Utility tamper workhead
US4096806A (en) * 1975-11-17 1978-06-27 Graystone Corporation Track tamper with hingeable unitary pivotable tamping unit
US4134342A (en) * 1976-09-16 1979-01-16 Nippon Kokuyu Tetsudo Ballast tamping apparatus
US4218978A (en) * 1977-02-18 1980-08-26 Matisa Materiel Industriel S.A. Apparatus for tamping or packing the bed of railway tracks
US4440089A (en) * 1980-10-29 1984-04-03 Canron Inc. Railway track ballast tamping device
US4476786A (en) * 1981-03-09 1984-10-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Ballast tamping machine
US4744304A (en) * 1986-02-18 1988-05-17 Kershaw Manufacturing Co., Inc. Railway track tamping machine
US4744303A (en) * 1986-02-27 1988-05-17 Kershaw Manufacturing Co., Inc. Railway track tamping machine
CN109577114A (zh) * 2013-02-22 2019-04-05 Hp3真实有限责任公司 用于轨道捣固机的捣固设备

Also Published As

Publication number Publication date
GB1275250A (en) 1972-05-24
CH537492A (fr) 1973-05-31
DE2039784A1 (de) 1971-03-11
FR2060996A5 (fr) 1971-06-18
AT315891B (de) 1974-06-10
DE2039784B2 (de) 1977-01-13

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