US3751815A - Mobil track survey apparatus for determining the tract camber - Google Patents

Mobil track survey apparatus for determining the tract camber Download PDF

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Publication number
US3751815A
US3751815A US00155852A US3751815DA US3751815A US 3751815 A US3751815 A US 3751815A US 00155852 A US00155852 A US 00155852A US 3751815D A US3751815D A US 3751815DA US 3751815 A US3751815 A US 3751815A
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US
United States
Prior art keywords
track
sensing
links
measuring signal
rails
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Expired - Lifetime
Application number
US00155852A
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English (en)
Inventor
F Plasser
J Theurer
M Schweinhammer
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.)
Franz Plasser Bahnbaumaschinen Industrie GmbH
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Franz Plasser Bahnbaumaschinen Industrie GmbH
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Publication date
Application filed by Franz Plasser Bahnbaumaschinen Industrie GmbH filed Critical Franz Plasser Bahnbaumaschinen Industrie GmbH
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Publication of US3751815A publication Critical patent/US3751815A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
    • B61K9/08—Measuring installations for surveying permanent way

Definitions

  • ABSTRACT [30] Foreign Application Priority Data Two sensing elements each having two sensing mem- July 9, 1970 Austria 6270 respectively engaged with the fails and Spaced I I apart in the track elongation direction survey the verti- 52 US. Cl. .L 33/146 eel Positions of the rails to determine the Week eember- [51] Int. Cl.
  • G1 1b 9/08 Two nnk elements respectively interconnect opposite [58 Field of Search 33/287, 144, 146, Sensing members of the respeetive sensing elements- 33 333; 104 107 R, 0
  • An electric measuring signal generator is connected between the two links and transmits to an indicator an [56] References Cited A electric measuring signal'proportional to any move- UNITED STATES PATENTS I ment between the two links relative to each other.
  • the present invention relates to improvements in mobile track survey apparatus designed to determine the camber of a track, i.e. the difference in the vertical positions or grades of the two track rails.
  • Apparatus of this general type wherein two sensing elements, such as axles having flanged wheels, each engaged with both rails are spaced apart in the track elongation direction whereby the engaged sensing elements survey the vertical position of each rail.
  • a measuring mechanism interconnects the two sensing elements so that it measures the angle between the two axles of the sensing elements in a plane extending transversely of the track as the apparatus moves in the track elongation direction.
  • the measuring system consists of levers or the like, which mades it rather complex and also is subject to errors and/or operating difficulties.
  • two link elements respectively interconnecting one of the rail sensing members of one of the sensing elements engaging one of the rails with one of the sensing members of the other sensing element engaging the other rail, and connecting an electrical measuring signal generator and transmitter between the two link elements for generating and transmitting an electric measuring signal proportional to any movement between the two links relative to each other.
  • An indicator is connected to the signal generator and transmitter for indicating the measuring signal.
  • the electric measuring signal generator and transmitter comprises an inductance bridge, a housing for the brige being afiixed to one link, and the armature of the bridge moving in the housing is affixed to the other link.
  • a measuring bridge is thus formed and is connected to the indicator, which may include a signal recorder, preferably via an amplifier.
  • the apparatus has achassis and one of the sensing elements is constituted by a running gear supporting the chassis.
  • the wheels of the running gear constitute the sensing mem bers of the one sensing element, and the other sensing element is mounted on the chassis substantially free of load.
  • each diagonal link extends diagonally between respective sensing members to which they are connected, the two diagonal links intersect and are vertically spaced at the point of intersection, where the measuring signal generator is mounted.
  • One end of each diagonal link is then pivoted to a respective sensing element adjacent one rail, and a vertically extending arm is mounted on each sensing element adjacent the other rail, with the other ends of the diagonal links pivoted to respective ones of the arms.
  • the indica tor preferably includes the controls for the track working tools which will thus be operated under the guidance of the measuring signals.
  • FIG. 1 is a side view of a track survey car incorporating the instrumentation of the present invention
  • FIG. 2 is a schematic perpsective view of one embodiment of the apparatus for determining the track camber
  • FIG. 3 is an enlarged side view, partly in section, of the embodiment of FIG. 2;
  • FIG. 4 is a transverse section along line lV-IV of FIG. 3;
  • FIG. 5 is a circuit diagram erator and transmitter.
  • FIG. 1 shows a track survey car having a chassis 3 and a body 4.
  • the chassis is supported on running gears 2, 2' whose wheels run on track rails I, 1 so that the track survey car is mounted for mobility in the direction of track elongation.
  • the car is self-propelled, a drive motor 5 being connected to the axle of running gear 2 for moving the car along the track.
  • Measuring gears 6, 6', 6" are mounted on the chassis for vertically freely moving in respect of the chassis, the measuring gear unit 6' being arranged intermediate and substantially centrally between the running gears 2, 2'.
  • Each measuring gear comprises two rail position sensing elements constituted by axles 9a, 9b respectively carrying rail sensing members 6a, 6b constituted by flanged wheels.
  • Each measuring gear is mounted on the chassis free of load by pivotal support rods 7 one of whose ends is pivoted to the underside of chassis 3.
  • Obliquely outwardly directed hydraulic motors 8 connect respective axles of each measuring gear unit to the chassis so that each gear may be lifted off the track rails when not in use. Due to their outward bias, the hydraulic motors simulof a measuring signal gentaneously serve to press the flanged wheels 6a, 6b of the measuring axles 9a, 9b against a respective rail.
  • the ordinates, ie the later alignment of the track rails, are measured by all three measuring gear units 6, 6, 6" in a manner fully described and claimed in concurrently filed application Ser. No. 155,851, entitled Mobile Track Survey Apparatus" of which the joint inventors Franz Plasser and Josef Theurer are also joint inventors.
  • the illustrated car also carries apparatus 15 for determining the track camber according to the present invention, computers 17 to which the measured signals may be fed, and signal indicator 12 and recorder 13.
  • FIGS. 2, 3 and 4 illustrate only one running gear 2', one of the end measuring gears 6" (used for surveying the alignment) and the center measuring gear unit 6' which is also used herein for determining the camber in cooperation with running gear 2'.
  • diagonally extending links 18a, 18b have respective ends linked to the axle of running gear 2' adjacent the wheels 2a, 2b thereof and to the measuring gear unit 6' adjacent its flanged wheels 60, 6b.
  • the running gear constitutes the one sensing element and the measuring gear unit 6' constitutes the other sensing element.
  • the links respectively interconnect the sensing members of the sensing elements engaging the opposite rails.
  • the ends of the links adjacent one rail are pivoted to the respective axles by a universal joint 20 while vertical arms 19 extend from the axles adjacent the opposite rail for pivotally mounting the opposite ends of the links. Furthermore, another link 21 extending transversely of the rails interconnects the two diagonal links between their point of intersection and the running gear 2'.
  • the measuring signal generator 22, 23 is mounted, consisting of armature 22 affixed to link 18a and inductance bridge housing 23 affixed to link 18b.
  • F l6 schematically illustrates the inductance bridge which generates and transmits a signal responsive to the movement of the links.
  • the signal generator and transmitter comprises a cylindrical housing 23 of stainless steel wherein a differential reactance with an axially movable armature 22 is mounted.
  • Two measuring coils 25, 25 are electrically connected to form half an inductance bridge connected to a carrier frequency amplifier 26, the bridge being completed by two precision resistances (not shown).
  • the amplifier receives current from an electrical current supply circuit through an operating voltage stabilizer 27.
  • a measuring signal current or voltage
  • This signal is proportional to the movement of the armature which, in turn, corresponds to the movement of the link to which it is affixed.
  • the signal is amplified at 26 and, after being rectified, the measuring signal is transmitted to an indicator 12 and/or the signal recording instrument 13.
  • a mobile track survey apparatus for determining the camber of a track having two rails and mounted for mobility on the track rails for movement in the direction of elongation of the track, the apparatus comprismg 1. two sensing elements spaced apart in the track elongation direction and each element comprising a. an axle carrying two rail sensing members respectively engaging a respective one of the track rails;
  • an electric measuring signal generator and transmitter mounted in the vertical space between the links at the point of intersection, the measuring signal generator and transmitter being constituted by an inductance bridge including a housing affixed to one of the links and an armature moving in the housing, the armature being affixed to the other link,
  • the mobile track survey apparatus of claim 1 further comprising a vertically extending arm mounted on each of the sensing elements adjacent one of the rails, one of the ends of each diagonal link being pivoted to a respective one of the arms and the other ends of the diagonal links being pivoted to a respective one of the sensing elements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
US00155852A 1970-07-09 1971-06-23 Mobil track survey apparatus for determining the tract camber Expired - Lifetime US3751815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT627070A AT308801B (de) 1970-07-09 1970-07-09 Fahrbare Einrichtung zur Ermittlung der Verwindung eines Gleises

Publications (1)

Publication Number Publication Date
US3751815A true US3751815A (en) 1973-08-14

Family

ID=3584599

Family Applications (1)

Application Number Title Priority Date Filing Date
US00155852A Expired - Lifetime US3751815A (en) 1970-07-09 1971-06-23 Mobil track survey apparatus for determining the tract camber

Country Status (8)

Country Link
US (1) US3751815A (enrdf_load_stackoverflow)
JP (1) JPS5330345B1 (enrdf_load_stackoverflow)
AT (1) AT308801B (enrdf_load_stackoverflow)
CA (1) CA946606A (enrdf_load_stackoverflow)
CH (1) CH539736A (enrdf_load_stackoverflow)
DE (1) DE2130327C2 (enrdf_load_stackoverflow)
FR (1) FR2099304A5 (enrdf_load_stackoverflow)
GB (1) GB1346653A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9401543A (nl) * 1993-09-25 1995-04-18 Elektro Thermit Gmbh Over rails verrijdbare meetwagen voor het meten van onvolkomenheden in de rijvlakken van spoorbanen.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD39552A (enrdf_load_stackoverflow) *
US1906170A (en) * 1932-01-18 1933-04-25 Mauzin Andre Ernest Device for recording the warp of railway tracks
US2113785A (en) * 1936-10-09 1938-04-12 Sperry Prod Inc Rail flaw detector mechanism
US2167081A (en) * 1934-08-03 1939-07-25 Mauzin Andre Ernest Device for the continuous determination and recording of the cant of a railway track
US2784496A (en) * 1953-04-10 1957-03-12 Matisa Materiel Ind Sa Devices for the measuring and recording of the warpage and buckling of railway tracks
AT220183B (de) * 1959-11-10 1962-03-12 Schenck Gmbh Carl Einrichtung zur Ermittlung der Verwindung von Gleisen
US3514862A (en) * 1967-02-17 1970-06-02 Heinrich Helgemeir Super-flevation and gradient measuring devices for track

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE589976C (de) * 1932-01-18 1933-12-23 Andre Ernest Mauzin Vorrichtung zum Messen und Aufzeichnen der Verwindung von Schienenstraengen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD39552A (enrdf_load_stackoverflow) *
US1906170A (en) * 1932-01-18 1933-04-25 Mauzin Andre Ernest Device for recording the warp of railway tracks
US2167081A (en) * 1934-08-03 1939-07-25 Mauzin Andre Ernest Device for the continuous determination and recording of the cant of a railway track
US2113785A (en) * 1936-10-09 1938-04-12 Sperry Prod Inc Rail flaw detector mechanism
US2784496A (en) * 1953-04-10 1957-03-12 Matisa Materiel Ind Sa Devices for the measuring and recording of the warpage and buckling of railway tracks
AT220183B (de) * 1959-11-10 1962-03-12 Schenck Gmbh Carl Einrichtung zur Ermittlung der Verwindung von Gleisen
US3514862A (en) * 1967-02-17 1970-06-02 Heinrich Helgemeir Super-flevation and gradient measuring devices for track

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9401543A (nl) * 1993-09-25 1995-04-18 Elektro Thermit Gmbh Over rails verrijdbare meetwagen voor het meten van onvolkomenheden in de rijvlakken van spoorbanen.

Also Published As

Publication number Publication date
FR2099304A5 (enrdf_load_stackoverflow) 1972-03-10
CA946606A (en) 1974-05-07
CH539736A (de) 1973-07-31
AT308801B (de) 1973-07-25
DE2130327C2 (de) 1986-09-18
JPS5330345B1 (enrdf_load_stackoverflow) 1978-08-26
DE2130327A1 (de) 1972-01-20
GB1346653A (enrdf_load_stackoverflow) 1974-02-13

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