US3706284A - Track working apparatus with laser beam reference - Google Patents

Track working apparatus with laser beam reference Download PDF

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Publication number
US3706284A
US3706284A US3762A US3706284DA US3706284A US 3706284 A US3706284 A US 3706284A US 3762 A US3762 A US 3762A US 3706284D A US3706284D A US 3706284DA US 3706284 A US3706284 A US 3706284A
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Prior art keywords
laser beam
track
sensing means
emitter
correcting
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US3762A
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English (en)
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Franz Plasser
Josef Theurer
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Franz Plasser Bahnbaumaschinen Industrie GmbH
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Individual
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C7/00—Tracing profiles
    • G01C7/02—Tracing profiles of land surfaces
    • G01C7/04—Tracing profiles of land surfaces involving a vehicle which moves along the profile to be traced
    • 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
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E01B35/06—Applications of measuring apparatus or devices for track-building purposes for measuring irregularities in longitudinal direction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/002—Active optical surveying means
    • G01C15/004—Reference lines, planes or sectors
    • 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
    • E01B2203/14—Way of locomotion or support
    • E01B2203/143—Way of locomotion or support on a side-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
    • E01B2203/14—Way of locomotion or support
    • E01B2203/148—Way of locomotion or support having wheelsets that can be displaced horizontally or vertically
    • 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

  • ABSTRACT A laser beam reference or datum in a track surfacer, liner or surveying apparatus is intercepted by a mask or sensor which'is held in a measurably fixed relationship to the grade rail. This sensor is connected with the track lining or leveling tool, or a track position recorder or signaling instrument, and control signals from the sensor in response to laser beam impingement thereon operate the respective tool or recording or signaling instrument.
  • the present invention relates to track working or surveying apparatus for correcting, recording or signaling the position of a track in relation to a laser beam reference or datum.
  • a laser beam emitter if desired a laser beam receiver associated with the emitter so as to define the path of the laser beam, and a laser beam sensing means, such as a mask or sensor, in the path of the laser beam. Means is provided for correcting or surveying the track position and, in the latter case, a recording or signaling instrument for indicating the track position is provided.
  • a laser beam reference is very useful in track working operations because of its long reach as well as its total insensitivity to weather conditions, the sharpness of such a beam, and for other reasons.
  • previous efforts to make use of laser beams as a reference or datum for track correction have failed because they lacked the necessary accuracy and efficiency in such a precision operation.
  • FIG. 1 is a schematic side view of a combined track tamper-surfacer-liner with an embodiment of the reference system of this invention
  • FIGS. 4a and 4b show a modified detail of the reference system inside and front view, respectively;
  • FIG. 5 is a schematic top view of a track liner with an embodiment of the reference system of the invention.
  • FIG. 6 is a section along line VI-VI of FIG. 5;
  • FIG. 7 is a section along line VII-VII of FIG. 5;
  • FIG. 9 is a schematic top view of a modification of the system of FIGS. 5 to 8;
  • FIGS. 10 to 12 illustrate various embodiments of laser beam receivers
  • FIG. 13 is a perspective view of a planar laser beam and its emitter
  • FIGS. 14 to 16 are schematic top views of various track correction machines embodying the invention.
  • FIGS. 17 and 18 are perspective views of additional machines embodying the invention.
  • FIGS. 1 and 2 show a generally'conventional combined track tamper-surfacer-liner which has a machine frame I mounted on three running gears 2 for mobility on track rails 3.
  • the illustrated track working assembly carries a pair of tamping units 4 arranged to tamp two immediately adjacent ties 5 simultaneously, in the manner more particularly disclosed and claimed in our U. S. Pat. Nos. 3,372,651 and 3,357,366.
  • the machine frame I also carries roller lining units 6 each of which includes two flanged rollers 7 glidingly gripping the heads of rails 3.
  • Lining cylinders 9 are connected to the lining units for transmitting laterally directed power to a respective rail for pressing the track into the correct lateral position, as is conventional.
  • the track lining actuating means 6, 7, 9 is vertically adjustable on the front end of the machine frame 1, as seen in the working direction of the machine indicated by a horizontal arrow, by means of a pressure fluid drive 8.
  • the reference system for lifting the track to a desired level or grade includes a reference consisting of a conical light beam 12 emitted from sender 11 mounted on bogie 10, which is positioned in an uncorrected track section, and received by receiver 13 mounted on machine frame I for free vertical movement in respect thereto and resting directly on track 3 in a track section that has been corrected, the receiver 13 thus being vertically movable with this track section when the same is corrected.
  • a light beam interceptor or mask 14 is also mounted for free vertical movement on track 3 in a track section intermediate the sender and receiver.
  • the bogie 10 which may also carry track measuring and recording devices, such as cross levels, is connected to the front of the machine frame 1 by meansof spacing rod 15,'which keeps the bogie at a predetermined distance from the frame as the track working apparatus, proceeds along the track during the surfacing and/or lining operation, the corrected track section always lying behind the units6 while the bogie 10 runs on the uncorrected track section.
  • a source or emitter 17 of a planar laser beam 16 is mounted on front bogie 19.
  • the laser beam is conical in a transverse plane substantially parallel 'to. the plane of the track.
  • the laser beam source 17 is mounted on a vertically adjustable carrier support 18 on bogie 19 which may be pivoted about a vertical axis so that the laser beam source 17 may be selectively positioned into association with a selected rail of the track, as best seen in FIG. 2.
  • a scale is associated with the laser beam source to facilitate such adjustment in track curves.
  • the laser beam source 17 is additionally pivotal about a horizontal axis extending transversely of the track.
  • the front bogie 19' has its own drive, which is preferably actuated by remote control, and runs on two running gears 19'.
  • the running gears have flanged wheels or rollers which are pressed against the selected grade rail so as to constitute a proper reference in respect of the track and to bring the laser beam source 17 into proper relationship to the reference system. Lateral pressure may be exerted in any convenient manner, such as by jacking means, as is well known.
  • the bogie I0 also runs on two running gears 10' which have flanged wheels or rollers which are pressed I against the selected grade rail in any convenient manner.
  • a laser beam mask or interceptor 20 is mounted on bogie 10 for 180 pivotal movement about a vertical axial so that is may be swung around to a selected grade rail in the, same manner as the laser beam source 17.
  • the machine frame I carries a laser beam receiver 21 which is also mounted for 180 pivotal movement about a vertical axis so that it, too, may be swung around to the selected grade rail, with laser beam source 17 and laser beam sensing mask 20.
  • the laser beam receiver 21 is mountedin substantial alignment with the light beam receiver 13.
  • a second laser beam sensor or mask 22 is similarly pivotally mounted on machine frame 1 in substantial alignment with the tamping units 4 for further control of the desired track correction. As best seen in FIG. 2, this mask also is in the path of a portion of the outwardly tapering planar laser beam 16:
  • the laser beam emitter 17 is first coarsely centered on receiver 21 by viewing a spotboard 24 (FIG. 3) through sight 23, the spotboard being spaced the same distance from the center of the receiver as the sight is from the center of the emitter.
  • Accurate centering of the planar laser beam 16 during the continuous operation of the track correction apparatus is effected automatically by remote control, either by radio 25 (FIG. 1) or by an electrical control circuit 26 (FIGS. 2 and 3).
  • the receiver 21 has a grating or scanning pattern of lightand/or temperature sensitive cells which respond to the laser beam intensity received thereby to produce corresponding electrical control or radio signals for actuating pivoting drive 17' for the emitter 17 and/or pivoting drive 21' forthe receiver.
  • the laser beam sensor masks 20 and 22 also carry light-and/or temperature sensitive cells or elements 27 and 28.
  • These radiation responsive elements 27 and 28 extend horizontally above and below a horizontally extending, fixed central region of the masks, i.e., an open slot, the elements 27 and 28 responding to the laser beam intensity received thereby to produce corresponding electrical control signals characteristic of each element for energizing electrical control circuit 29 to actuate the vertical movement of a respective sensor in dependence on the impingement of planar laser beam 16.
  • the vertical movement of the sensor 20 actuates vertical drive 11' for light beam emitter 11 so that the vertical position of the same is corrected if it is in the wrong vertical position when the bogie is stationed at an unusually low or high point in the uncorrected track section during the continuous advance of the apparatus along the track on which work is done.
  • the vertical adjustment of the sensor 22 may be recorded on a moving band 30.
  • a conventional pendulum device 31 may be mounted in the region of mask 22 to-observe and control the superelevation of the track in relation to the plane of laser beam 16. According to an important characteristic of the present invention, all parts of the reference system are pressed into contact with the grade rail to assure accuracy.
  • each of the laser beam intercepting means and 22, which are spaced apart along the longitudinal extension of the beam, are arranged to interfere with, or intercept, only a portion of the lateral extension of the planar laser beam so that preferably at least the central portion of the beam is left unmasked and may be received by receiver 21.
  • the laser beam masking means is constituted by a slotted stop 32. While the stop has been shown to define a horizontal slot 33 surrounded by a lightand/or temperature sensitive cell or element 34, this slot may instead extend vertically or be replaced by a circularly shaped aperture. Also, only one side of the stop adjacent the slot or aperture need be light-. and/or temperature sensitive, instead of all sides.
  • the illustrated stop is useful in association with the horizontal laser beam 16, as shown in FIG. 13, and a differently shaped and/or positioned aperture would be used with a laser beam of different shape and/or position.
  • the mask 32 is vertically movable by drive 11'.
  • the mobile track liner illustrated in FIGS. 5 to 8 operates in the manner fully described in Austrian Pat. No. 227,749 and, since conventional, will be described herein only inasmuch as pertinent to the reference system of the present invention.
  • This track working apparatus comprises a series of carriages spaced apart in the direction of track elongation for movement on the track rails on one or two axles. As seen in the working direction, the apparatus comprises a rearmost carriage 35, preceded by a measuring bogie 36, track lining unit 37 and front carriage 38. Preferably, all of these carriages are independently mounted for lateral move ment on the underside of the mobile machine frame 39 which has its own running gears (not shown) for mobility on the track. The operators cab 40 is mounted on the frame 39. e
  • the axles of the carriages have flangedwheels and conventional means is provided for laterally pressing the carriages against the selected grade rail of the track until the flanges of the wheelsengage firmly against the selected rail.
  • the lateral pressure means may include a laterally movable second axle (shown in broken lines) or a pair of double-acting jacks 41.
  • a long reference chord 42 extends from rearmost carriage to front carriage 38, passing intermediately positioned measuring bogie 36.
  • the anchor points of the long chord are laterally movable on their respective carriages by a spindle drive 43 rotated by servo motor 43'.
  • the short reference chord 44 has one end point anchored to the rear carriage 35 at the same anchorage as long chord 42 while the other end point of the short chord is anchored to the track lining unit 37 to be laterally moved therewith with track 3 and the roller unit 37 when the latter is actuated, the short reference chord also passing intermediately positioned measuring bogie 36.
  • This two-chord lining system is well known and requires the ordinates on the-two chords measured at 36 to be in the same proportion in a track curve as the proportion of lengths of the two chords.
  • the track 3 is laterally moved by roller lining units 37 until the ordinates at 36 have reached this proportion, two chord probes being mounted on screw-threaded spindle 36 for automatically determining the alignment in the manner fully described and claimed in our U. S. Pat. No. 3,3l4,373.
  • the known reference system is associated with a laser beam 45 extending laterally adjacent track 3 in the direction of elongation of the track.
  • the position of the laser beam my be fixed by end points 46 and 47 which may be arranged at regular intervals along the track at a predetermined distance from the theoretical center line of the track.
  • a spindle drive 43 operated by servo motor 43' is mounted on the carriage, the spindle drive having a support arm 49 projecting laterally beyond the track and supporting the receiver 50 at a predetermined point which may be adjusted by rotation of the spindle drive, regardless of the actual lateral position of the track section.
  • the laser beam receiver 50 is pivotally mounted on the support arm 49.
  • the laser beam source or emitter 51 is similarly pivotally mounted on the support arm 49 projecting laterally beyond the track from spindle drive 43 on rear carriage 38 and whose lateral position is adjustable similar to that of receiver 50.
  • the laser beam emitter carries a sight 2 3 for viewing a spotboard on the receiver so as to focus the emitter on the receiver.
  • a television receiver and screen 53 in the operators cab is connected to the laser beam emitter to enable the operator to focus the emitter by remote control circuit 53' actuating the pivotal movement of the emitter.
  • the laser beam 45 is of rectangular cross section and defines a vertical reference plane extending in the direction of track elongation. This cross sectional shape of beam 45 facilitates the control of the emitter 51 in dependence on the receiver as well as the masking or interception of the beam by sensing means 54 also mounted for lateral movement on support arm 49 of spindle drive 43 which is arranged on the carriage 38.
  • the lateral movement of the mask 54 is controlled automatically by control circuit 55 connected to servo motor 43- of its spindle drive, the control circuit being actuated by signals from light-' and/or temperature sensitive elements 55 mounted laterally adjacent the beam 45, as seen in FIG. 7.
  • the masking or sensing means 54 constitutes a probe for the laser beam and, depending on which of the lateral contact elements 55 is intersected by the laser beam, a corresponding control signal will rotate the spindle drive 43 in one or the other direction to move the probe back into alignment with the beam 45.
  • the forward end of the longer chord 42 has exactly the same distance from laser beam 45 as its rear end on carriage 35.
  • the lateral adjustment of the arm 49 on carriage 38 takes into account the corresponding ordinate, for which purpose the arm carries scale 49".
  • the arms 49 on carriages 35, 38 and 48 may be pivoted 180 about a vertical axis so that they may be associated with the other rail of the track when a change of grade rail is required.
  • the carriages themselves are relatively light and readily exchangeable so that the apparatus may be used in reverse working direction.
  • the laser beam emitter and receiver may be mounted on laterally adjustable support arms. They may be moved or fixed at a fixed lateral distance x from fixed points 46 and 47 which have a predetermined lateral distance fromthe grade rail or center line of the track. For instance, as indicated in FIG. 6, the receiver may be clamped to a stake 46 at 49' (the emitter being similarly mounted). Or, as shown in FIG. 8, the emitter 51 may be mounted on a third rail 56 (the receiver being similarly mounted). As
  • respective support arms 49 may contact the fixed points .46 and 47.
  • FIG. 9 schematically illustrates a different reference system for lining, this system, too, being associated with a laser beam 45.
  • a single reference line 57 is provided whose front end is moved into a predetermined position in relation to the laser-beam 45 so that the line 57 forms a proper reference for movement of the lining unit 37 which, in this embodiment, is preferably arranged closer to the rear carriage 35 than the front carriage 38.
  • a cross sectionally L-shaped laser beam 16' is to be sensed, the two legs of the L having positioned adjacent thereto light sensitive elements 58 and temperature sensitive elements 58'. Any movement of the laser beam off center, as indicated by the horizontal and vertical arrows, will produce a corresponding signal as soon as one orboth legs of the beam impinge upon one or more of the elements 58 and/or 58'.
  • This known lining reference system is positioned in relation to a laser beam 70 extending laterally of the track in the direction of track elongation.
  • the rear station 66 of the lining reference system carries a pivotally mounted support arm for the laser beam source or emitter 69 so that the emitter may be swung into position alongside either rail of the track.
  • a foremost carriage 73 carries a similarly pivotally mounted support arm projecting laterally beyond the selected rail to support the apertured stop 71 in the path of the laser beam.
  • the carriage 73 also has flanged wheels which may be laterally pressed into contact with the selected rail.
  • Front carriage 67 of the linging reference system carries a laser beam receiver or target 75 whereon the laser beam coming from reflector 74' impinges.
  • the target 75 is fixedly connected to the anchor 75a of the forward end of longer reference chord 65 and is laterally movable therewith on carriage 67.
  • This target 75 too, has lightand/or temperature sensitive elements whose control signals automatically center the target in respect of the laser beam so that the forward end of the longer reference chord is automatically moved into a desired lateral position at which it is at exactly the same lateral distance from laser beam as the rear end of the chord 65 is from that beam in the lined track section.
  • the ordinate of the curve must be taken into consideration when the apparatus works in a track curve.
  • the laser beam reflectors 74 and 74 may be replaced by a target at 74 and an independent laser beam emitter at 74 which has a fixed distance to the target at 74.
  • This modification is functionally equivalent to the one above-described since, in fact, the reflector 74 can be considered a laser beam target and the reflector 74 a laser beam emitter.
  • a very simple lining reference system is used,-like reference numerals in this figure designating parts that function in the same manner as in the embodiment of FIG. 14.
  • the datum line for the reference system is again provided by laser beam 70 generated by emitter 69 and passing through apertured stop 71 to target 74.
  • the emitter 69 may carry a sight 23 for coarse focusing on target 74.
  • the laser beam v emitter and target are mounted on fixed points 46 and 47 adjacent the track so that the laser beam datum line requires no further auxiliary devices to determine its position.
  • a signal, such as warning light 74" may be provided at the laser beam target 74 to enable an operator to adjust the position of the laser beam emitter 69 as to focus or center the beam on the target or a spotboard connected thereto.
  • the laser beam sensing means is an apertured stop 71 mounted in the path of the beam and is laterally pressed by jack 41 against the grade rail of the track 3 so as to indicate the actual position of the track to be lined.
  • the stop carries lightand/or temperature sensitive elements 72 laterally adjacent the aperture of the stop (and the laser beam) so as to produce control signals when the beam deviates from the centered position, which signals actuate control circuit 72' operating control or servo motor 77 for the double-acting jack 62' of the lining unit 62.
  • the electric motor 77 operates a hydraulic supply and valve system 77' for controlling the operation of jack 62.
  • track 3 is laterally moved by the unit 62 until the laser beam 70 passes through the aperture of stop 71, at which time the elements 72 emit no control signals.
  • the stop may be laterally moved so as to compensate for the ordinate in track curves, i.e., the greater distance of the curved track from the straight datum line or plane.
  • FIG. 16 illustrates a very useful embodiment of a track working apparatus wherein a single laser beam datum cooperates with a series of sensing means spaced along the track elongation in the path of the beam so that the same beam may be used for a variety of purposes along the track, i.e., for leveling, lining, recording or merely indicating the track position.
  • the laser beam 16 is of cruciform or L-shaped cross section, such as shown in FIGS. 10 and 11, so that the spaced laser beam sensing means may intercept different cross sec tional portions of the beam.
  • Such sensing means may be arranged, if desired, on a series of different track working machines advancing along the track in the same working direction but being otherwise independent of each other, particularly since the reach of a laser beam may extend to more than 600 feet.
  • the track'working apparatus schematically shown in the top view of FIG. 16 includes a combined tamperleveler-liner similar to the one illustrated in FIGS. 1 and 2 but comprising two lining units 6 and 62. Since the same reference numerals are used to designate like parts functioning in a like manner, redundancy will be avoided in the description of this figure by referring to the preceding description of FIGS. 1 to 3, the laser beam being of cruciform cross section.
  • the laser beam is first intercepted by sensor which may have the form shown in FIG. 3 and intercepts that horizontal leg of the beam which extends inwardly toward the track.
  • sensor which may have the form shown in FIG. 3 and intercepts that horizontal leg of the beam which extends inwardly toward the track.
  • this leg of the laser beam will produce control signals actuating control circuit 29 to adjust the vertical position of light emitter 11. This will cause the light beam 12, which is used as a reference line for leveling the track, to assume a position parallel to the desired level of the track 3.
  • the next sensor 20a is spaced rearwardly of sensor 20 and is arranged to intercept the upwardly extending leg of the cruciform laser beam 16. It is associated with the roller lining unit 6 which laterally moves the track to produce at least coarse lining.
  • the jack 9 of the lining unit is operated by the servo motor 76 which is actuated by control circuit 75' receiving the control signals from the sensor 20a.
  • the third and rearmost sensor 20b is associated with the roller lining unit 62 and is arranged to intercept the downwardly extending leg of the cruciform laserbeam.
  • control circuit 76 operating relay 78 for controlling the lateral movement of the unit 62 which may be used for fine lining the track.
  • receiver 21 The portion of the laser beam 16 which has not been intercepted by sensors 20, 20a and 20b, particularly its center and remaining parts of its legs, are received by receiver 21 and used to center or focus the same inrespect of emitter 17.
  • This receiver is mounted on a laterally projecting support arm 79 on rearmost carriage 80 on which the support arm is mounted for lateral movement in respect of the track so that the receiver 21 has the same distance from the center line or grade rail of the track as the emitter 17 whereby the laser beam 16 assumes a position parallel to the center line of the track in a vertical and horizontal direction. All parts of the reference system requiring an accurate relationship with the actual position of track 3 are provided with biasing or pressure means 41 enabling such parts to be pressed into contact with the grade rail.
  • a front carriage 38a runs on track 3 and carries a support frame 81 for the laser beam emitter 82.
  • the emitter 82 is mounted at the outward end of a support arm 84 being laterally movable by a spindle drive operated by servo motor 84 which may be remote controlled.
  • the carrier 81 of the support arm may be pivoted about a vertical axis so that the emitter 82 may be swung into association with either one of the track rails.
  • the carriage 38a which forms part of the reference system, is pressed into contact with the selected grade rail to form an accurate reference basis according to the actual position of the track.
  • the planar laser beam 83 which flares outwardly, is focussed vertically downwardly against the fixed receiver 46.
  • the track lining in reference tothe laser beam 83 is effected by the two-chord system more fully described hereinabove and known per se, which includes the chords 42 and 44 cooperating'in the manner described in connection with FIG. 5, like reference numerals designating like parts functioning in a like manner to avoid redundancy in the description.
  • the forward anchor point 42"of the longer chord 42 is fixedly connected with thelaterally movable support arm 84 and thus is moved therewith into the desired position of the track, regardless of the actual position of the track at this point, as long as the lateral position of the sender is adjusted into vertical alignment with the fixed track point46. This imparts the desired alignment to the entire chord 42 since its rear anchor is on carriage 35a in the previously lined track section.
  • laser beam sensing means arranged to receive the laser beam from the emitter
  • control means operating the track position correcting means
  • laser beam sensitive elements on the laser beam sensing means for producing control signals upon impingement of the laser beam on said elements
  • control signals actuating said control means; and 6. a remote control for aligning the laser beam emitter with the sensing means in response to said control signals.
  • the track position correcting means comprises means for leveling the track and means for lining' the track, the control means simultaneously operating the leveling and lining means.
  • the track position correcting means includes a track engaging track moving means and a reference system, said reference system including a reference line in relation to which the track moving means corrects the track position, and means for changing the position of the reference line, the laser beam sensing means being connected with the reference line position changing means.
  • the track position correcting means includes a track engaging track moving means and a reference system, said reference system including a reference line having an end point in relation to which reference line the track moving means corrects the track position, the laser beam sensing means being connected with the reference line end point.
  • the laser beam sensing means includes supports means having an element capable of engagement with a selected grade rail of the track, and further including means for pressing the laser beam sensing means into a measurably fixed relationship to the grade rail, said pressing meansbeing actuatable to press the rail engagement element into contact with the grade rail.
  • a track working apparatus for correcting the position of a track in relation to a laser beam reference or datum comprising 1. a laser beam emitter;
  • laser beam sensing means in the path of the laser beam, a. the laser beam sensing means being held in a measurably fixed relationship to the selected grade rail of the track;
  • means for correcting the track position including b. a track engaging track moving means,
  • a reference system including a reference line in relation to which the track moving means corrects the track position, and (1. means for changing the position of the reference line, the laser beam sensing means being connected with reference line position changing means;
  • control means operating the track position correction means
  • said means for changing the position of the reference line includes a movable anchor for one end of the reference line, the laser beam sensing means being fixedly connected with the anchor for movement therewith.
  • said means for changing the position of the reference line includes a movable anchor for the other end of the reference line, said laser beam receiver is fixedly connected with the latter movable anchor for movement therewith, and said receiver receives a laser beam portion extending in a direction opposite to the working direction of the apparatus and extending towards the previously corrected track section.
  • the laser beam emitter is positioned in an uncorrected track section and further comprising a laser beam receiver positioned in a previously corrected track section, and said laser beam sensing means controls the actuation of the track moving means.
  • said means for changing the position of the reference line includes a movable anchor for one end of the reference line, and a further laser beam sensing means fixedly connected with the anchor for movement therewith.
  • the apparatus of claim 31 comprising a succession of machines mounting a succession of said track moving means, a corresponding succession of said laser beam sensing means being mounted in the path of said laser beam for controlling respective ones of the track moving means.
  • a track working apparatus for correcting the position of a track in relation to a laser beam reference or datum comprising 1. a laser beam emitter; v v
  • a. laser beam sensitive elements arranged about a central region of the receiver for producing control signals upon the impingement of the laser beam on said elements, the control signals automatically centering the receiver in respect to the emitter, and the emitter being mounted for adjustment;
  • the laser beam sensing means being held in a measurably fixed relationship to the selected grade rail of the track;
  • the laser beam sensing means being connected with the track position correcting means
  • control means operating the track position correction means
  • laser beam sensitive elements on the laser beam sensing means for producing control signals upon impingement of the laser beam on said elements
  • the apparatus of claim 36 furthercomprising a laser beam receiver carrying two different, centrally arranged laser beam sensitive elements positionable between the two laser beams to indicate centering of the receiver in respect to the emitter.
  • a track working apparatus for correcting the position of a track in relation to a laser beam reference or datum comprising 1. a laser beam emitter;
  • the support means having an element capable of engagement with the selected grade rail
  • said pressing means being actuatable to press the rail engagement element into contact with the selected grade rail;
  • the laser beam sensing means being held in a measurably fixed relationship to the selected grade rail of the track;
  • control means operating the track position correction means
  • laser beam sensitive elements on the laser beam sensing means for producing control signals upon impingement of the laser beam on said elements
  • control signals actuating said control means.
  • a track working apparatus for correcting the position of a track in relation to a laser beam reference or datum comprising 1. a laser beam emitter arranged to emit two parallel planar laser beams;
  • the laser beam sensing means being connected with the track position correcting means
  • control means operating the track position correction means; and v 6. laser beam sensitive elements .on the laser beam sensing means for producing control signals upon impingement of the laser beam onsaid elements, c. said control signals actuating said control means.
  • a track working apparatus for correcting the position'of a track in relation to a laser beam reference or datum comprising I 1. a laser beam emitter;
  • the laser beam sensing means being held in a measurably fixed relationship to the selected grade rail of the track;
  • the laser beam sensing means being connected with the track position correcting means
  • control means operating the track position correction means
  • control signals actuating said control means and d. automatically centering the sensing means in respect of the laser beam.
  • a track working apparatus for correcting the position of a track in relation to a laser beam reference or datum comprising 1. a laser beam emitter;
  • the laser beam sensing means being held in a measurably fixed relationship to the selected grade rail of the track;
  • the laser beam sensing means being connected with the track position correcting means
  • control means operating the track position correction means
  • thermosensitive elements arranged on the laser beam sensing means about a central region of the sensing means for producing control signals upon impingement of the laser beam on said elements;
  • a track working apparatus for correcting the position of a track in relation to a laser beam reference or datum comprising 1. a laser beam emitter arranged to emit two parallel laser beams;
  • laser beam sensing means in the path of the laser beam, a. the laser beam sensing means being held in a measurably fixed relationship to the selected grade rail of the track;
  • control means operating the track position correction means
  • a track working apparatus for correcting the position of a track in relation to a laser beam reference or datum comprising 1. a laser beam emitter;
  • the laser beam sensing means being held in a measurably fixed relationship to the selected .grade rail of the track;
  • means for correcting the track position including b. a track engaging track moving means;
  • a reference system including a reference line in relation to which the track moving means corrects the track position, a movable anchor for the forward end of the reference rearwardly of the forward carriage for the forward end of the reference line in an uncorrected track section, and
  • control means operating the track position correction means
  • laser beam sensitive elements on the laser beam sensing means for producing control signals upon impingement of the laser beams on said elements
  • control signals actuating said control means and moving the anchor the desired distance from the laser beam.
  • a track working apparatus comprising 1. a laser beam emitter;
  • control including laser beam sensitive elements on the laser beam sensing means for producing control signals upon impingement of the laser beam on said elements.
  • a track working apparatus for correcting the position of a track in relation to a laser beam reference or datum comprising 1. a laser beam emitter;
  • laser beam sensing means arranged to receive the laser beam from the emitter
  • the track position correcting means including a track engaging track moving means and a reference system, the reference system including a reference line having an end pointin relationto which reference line the track moving means corrects the track position, andthe laser beam sensing means being connected with the reference line end point; 4. control means operating the track position correcting means; and a 5. laser beam sensitive elements on the laser beam sensing means for producing control signals upon impingement of the laser beam on said elements, b. said control signals actuating said control means.
US3762A 1969-01-22 1970-01-19 Track working apparatus with laser beam reference Expired - Lifetime US3706284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT64669A AT314579B (de) 1969-01-22 1969-01-22 Fahrbare Einrichtung zur Aufzeichnung und bzw. oder Korrektur der Lage eines Gleises

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US3762A Expired - Lifetime US3706284A (en) 1969-01-22 1970-01-19 Track working apparatus with laser beam reference

Country Status (17)

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US (1) US3706284A (de)
JP (1) JPS5633521B1 (de)
AT (1) AT314579B (de)
CA (1) CA935638A (de)
CH (1) CH535327A (de)
DE (1) DE2001542C3 (de)
ES (1) ES375760A1 (de)
FR (1) FR2028881A1 (de)
GB (1) GB1303191A (de)
HU (1) HU166285B (de)
NL (1) NL164918C (de)
PL (1) PL80443B1 (de)
RO (1) RO59666A (de)
SE (1) SE366790B (de)
SU (1) SU644398A3 (de)
YU (1) YU35427B (de)
ZA (1) ZA70362B (de)

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US3823787A (en) * 1972-04-21 1974-07-16 Continental Oil Co Drill hole guidance system
US3922969A (en) * 1974-02-21 1975-12-02 Canron Inc Moving projector system
US3988059A (en) * 1975-06-23 1976-10-26 Sanders Associates, Inc. Projector
US4027210A (en) * 1974-04-08 1977-05-31 Gebr. Eickhoff, Maschinenfabrik Und Eisengiesserei M.B.H. Method and control system to limit shifting movement of a winning tool for a tunneling machine
US4165693A (en) * 1977-01-17 1979-08-28 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track leveling, lining and tamping apparatus
FR2451966A1 (fr) * 1979-03-23 1980-10-17 Sig Schweiz Industrieges Machine mobile de traitement des voies ferrees
US4273468A (en) * 1978-03-23 1981-06-16 Balfour Beatty Limited Tunnelling shields and like moveable apparatus
US4338043A (en) * 1977-12-23 1982-07-06 Commissariat A L'energie Atomique Method for depositing material on the ocean bed and apparatus for performing the same
US4363274A (en) * 1978-10-13 1982-12-14 Canron Corporation Center line follower
US4400115A (en) * 1978-12-20 1983-08-23 Commissariat A L'energie Atomique Method for depositing material on the ocean bed and apparatus for performing the same
US4452146A (en) * 1982-01-26 1984-06-05 Jackson Jordan, Inc. Railroad track tamper level control system
US4531053A (en) * 1981-09-25 1985-07-23 Sig Societe Industrielle Suisse Railway work machine
US4538061A (en) * 1981-09-25 1985-08-27 Sig Societe Industrielle Suisse Railway work machine
US4542940A (en) * 1978-12-04 1985-09-24 H. B. Zachry Co. Method and apparatus for cutting a trench through rock-like material
US4691565A (en) * 1985-08-22 1987-09-08 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile machine for measuring track parameters
US5090329A (en) * 1989-10-25 1992-02-25 Franz Plasser Bahnbaumaschinen Industriegesellschaft M.B.H. Reference system for track working machine
US5157840A (en) * 1988-02-22 1992-10-27 Matti Henttinen Method of and an equipment for determining the position of a track
US5243398A (en) * 1991-02-15 1993-09-07 Laser Alignment, Inc. Surveying instrument including low power light plane generator
US5613442A (en) * 1992-12-23 1997-03-25 Noptel Oy Arrangement and method for mesuring and correcting the line of a track
US6220170B1 (en) * 1998-01-19 2001-04-24 Franz Plasser Bahnbaumaschinen-Industriegessellschaft M.B.H. Method of correcting the position of a railroad track
US20060039757A1 (en) * 2004-08-19 2006-02-23 Bernd Lemke Machine for milling traffic areas
US7050926B2 (en) * 1999-02-12 2006-05-23 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Method of surveying a track
US20090076722A1 (en) * 2007-09-14 2009-03-19 John Darlington Road profiler and method therefor
US20150083013A1 (en) * 2013-09-25 2015-03-26 Harsco Corporation Systems and methods for use in rail track corrections
US20170022672A1 (en) * 2015-07-24 2017-01-26 Dutch Enginnering Llc Projector for track alignment reference systems
CN109477313A (zh) * 2016-07-11 2019-03-15 普拉塞-陶伊尔铁路机械出口股份有限公司 用于测量轨道的系统和方法
US10345099B2 (en) * 2015-03-18 2019-07-09 Focus Point Solutions Reference system for track alignment machines
WO2019215261A1 (de) * 2018-05-08 2019-11-14 Dekra Automobil Gmbh Oberflächenvermessungsvorrichtung und -verfahren für einen scheinwerferprüfstand
US10852158B1 (en) * 2019-09-27 2020-12-01 Kitty Hawk Corporation Distance sensor test system
US11802380B2 (en) 2016-11-04 2023-10-31 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Track maintenance machine having a track position measuring system

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AT336662B (de) * 1972-02-07 1977-05-25 Plasser Bahnbaumasch Franz Verfahren und maschine zum messen und gegebenenfalls korrigieren der seitlichen abweichungen eines gleises, insbesondere eines gleisbogens, nach einem leitstrahl
AT336065B (de) * 1975-02-07 1977-04-12 Plasser Bahnbaumasch Franz Bezugssystemanordnung fur gleisbaumaschinen
US4184266A (en) * 1977-09-23 1980-01-22 Canron, Inc. Single beam reference system for railway surveying
AT372724B (de) * 1981-02-27 1983-11-10 Plasser Bahnbaumasch Franz Fahrbare maschinenanlage mit mehreren, unabhaengig voneinander verfahrbaren gleisbaumaschinen
EP0090098B1 (de) * 1982-03-31 1985-12-27 Les Fils D'auguste Scheuchzer S.A. Vorrichtung zum Steuern einer Maschine zum Bau oder zur Instandsetzung eines Eisenbahngleises
FR2553910B1 (fr) * 1983-10-24 1986-03-21 Commissariat Energie Atomique Detecteur thermoelectrique d'alignement d'un faisceau laser et dispositif d'asservissement utilisant ce detecteur, pour l'alignement automatique d'un faisceau laser
DE3444723A1 (de) * 1984-12-07 1986-06-12 Richard Gehrcke Vorrichtung zum erfassen der gleisgeometrie mit einem laser
EP0293015B1 (de) * 1985-07-02 1991-10-02 Les Fils D'auguste Scheuchzer S.A. Steuervorrichtung für eine Eisenbahngleisnivellier- und -richtmaschine
SE9300058L (sv) * 1993-01-11 1994-01-24 Bewag Ab Sätt och anordning för lägesbestämning av långsträckta element, särskilt järnvägsspår
AT3739U3 (de) * 2000-04-07 2001-03-26 Plasser Bahnbaumasch Franz Stopfmaschine
DE10032364A1 (de) * 2000-07-04 2002-01-24 Gsg Knape Gleissanierung Gmbh Verfahren und Vorrichtung zum Feinregulieren von Gleisanlagen
EP1172482A3 (de) * 2000-07-10 2003-07-30 GSG Knape Gleissanierung GmbH Verfahren zur Herstellung von Schienenfahrbahnen, insbesondere festen Fahrbahnen, und Messvorrichtung zur Verwendung in einem solchen Verfahren
CN108151719B (zh) * 2017-12-07 2019-07-19 福州大学 一种验证地形阴影校正效果的方法
AT525770B1 (de) * 2022-01-11 2024-01-15 Herbert Doeller Messeinrichtungen zum Überwachen des Schienenweges

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US3321248A (en) * 1965-03-09 1967-05-23 Hughes Tool Co Tunneling machine guidance by impingement of laser beam on pair of machine carried targets
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US3381626A (en) * 1966-03-25 1968-05-07 Jackson Vibrators Track working assembly and control system
US3459136A (en) * 1966-05-12 1969-08-05 Conquip Ltd Automatic control for track surfacing machines
US3603688A (en) * 1967-11-08 1971-09-07 Perkin Elmer Corp Alignment apparatus
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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823787A (en) * 1972-04-21 1974-07-16 Continental Oil Co Drill hole guidance system
US3922969A (en) * 1974-02-21 1975-12-02 Canron Inc Moving projector system
US4027210A (en) * 1974-04-08 1977-05-31 Gebr. Eickhoff, Maschinenfabrik Und Eisengiesserei M.B.H. Method and control system to limit shifting movement of a winning tool for a tunneling machine
US3988059A (en) * 1975-06-23 1976-10-26 Sanders Associates, Inc. Projector
US4165693A (en) * 1977-01-17 1979-08-28 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile track leveling, lining and tamping apparatus
US4338043A (en) * 1977-12-23 1982-07-06 Commissariat A L'energie Atomique Method for depositing material on the ocean bed and apparatus for performing the same
US4273468A (en) * 1978-03-23 1981-06-16 Balfour Beatty Limited Tunnelling shields and like moveable apparatus
US4363274A (en) * 1978-10-13 1982-12-14 Canron Corporation Center line follower
US4542940A (en) * 1978-12-04 1985-09-24 H. B. Zachry Co. Method and apparatus for cutting a trench through rock-like material
US4400115A (en) * 1978-12-20 1983-08-23 Commissariat A L'energie Atomique Method for depositing material on the ocean bed and apparatus for performing the same
US4341160A (en) * 1979-03-23 1982-07-27 Sig Societe Industrielle Suisse Mobile machine for the treatment of railway tracks
FR2451966A1 (fr) * 1979-03-23 1980-10-17 Sig Schweiz Industrieges Machine mobile de traitement des voies ferrees
US4531053A (en) * 1981-09-25 1985-07-23 Sig Societe Industrielle Suisse Railway work machine
US4538061A (en) * 1981-09-25 1985-08-27 Sig Societe Industrielle Suisse Railway work machine
US4452146A (en) * 1982-01-26 1984-06-05 Jackson Jordan, Inc. Railroad track tamper level control system
US4691565A (en) * 1985-08-22 1987-09-08 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile machine for measuring track parameters
US5157840A (en) * 1988-02-22 1992-10-27 Matti Henttinen Method of and an equipment for determining the position of a track
US5090329A (en) * 1989-10-25 1992-02-25 Franz Plasser Bahnbaumaschinen Industriegesellschaft M.B.H. Reference system for track working machine
US5243398A (en) * 1991-02-15 1993-09-07 Laser Alignment, Inc. Surveying instrument including low power light plane generator
US5613442A (en) * 1992-12-23 1997-03-25 Noptel Oy Arrangement and method for mesuring and correcting the line of a track
US6220170B1 (en) * 1998-01-19 2001-04-24 Franz Plasser Bahnbaumaschinen-Industriegessellschaft M.B.H. Method of correcting the position of a railroad track
US7050926B2 (en) * 1999-02-12 2006-05-23 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Method of surveying a track
US20060039757A1 (en) * 2004-08-19 2006-02-23 Bernd Lemke Machine for milling traffic areas
US7510347B2 (en) * 2004-08-19 2009-03-31 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Machine for milling traffic areas
US20090076722A1 (en) * 2007-09-14 2009-03-19 John Darlington Road profiler and method therefor
US9777440B2 (en) * 2013-09-25 2017-10-03 Harsco Corporation Systems and methods for use in rail track corrections
US20150083013A1 (en) * 2013-09-25 2015-03-26 Harsco Corporation Systems and methods for use in rail track corrections
US10345099B2 (en) * 2015-03-18 2019-07-09 Focus Point Solutions Reference system for track alignment machines
US20170022672A1 (en) * 2015-07-24 2017-01-26 Dutch Enginnering Llc Projector for track alignment reference systems
US10407835B2 (en) * 2015-07-24 2019-09-10 Focus Point Solutions Projector for track alignment reference systems
CN109477313A (zh) * 2016-07-11 2019-03-15 普拉塞-陶伊尔铁路机械出口股份有限公司 用于测量轨道的系统和方法
CN109477313B (zh) * 2016-07-11 2021-09-03 普拉塞-陶伊尔铁路机械出口股份有限公司 用于测量轨道的系统和方法
US11802380B2 (en) 2016-11-04 2023-10-31 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Track maintenance machine having a track position measuring system
WO2019215261A1 (de) * 2018-05-08 2019-11-14 Dekra Automobil Gmbh Oberflächenvermessungsvorrichtung und -verfahren für einen scheinwerferprüfstand
US10852158B1 (en) * 2019-09-27 2020-12-01 Kitty Hawk Corporation Distance sensor test system
US11402234B2 (en) 2019-09-27 2022-08-02 Kitty Hawk Corporation Distance sensor test system

Also Published As

Publication number Publication date
NL164918B (nl) 1980-09-15
DE2001542B2 (de) 1977-09-15
CA935638A (en) 1973-10-23
YU13970A (en) 1980-09-25
SE366790B (de) 1974-05-06
NL7000822A (de) 1970-07-24
YU35427B (en) 1981-02-28
CH535327A (de) 1973-03-31
NL164918C (nl) 1981-02-16
DE2001542C3 (de) 1978-05-03
JPS5633521B1 (de) 1981-08-04
GB1303191A (de) 1973-01-17
RO59666A (de) 1976-06-15
HU166285B (de) 1975-02-28
DE2001542A1 (de) 1970-07-30
SU644398A3 (ru) 1979-01-25
FR2028881A1 (de) 1970-10-16
PL80443B1 (de) 1975-08-30
ES375760A1 (es) 1972-07-01
ZA70362B (en) 1971-08-25
AT314579B (de) 1974-04-10

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