• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a track measuring vehicle (1) for detecting a track geometry of a track (2), comprising a vehicle frame (5) having rail tracks (4) movable on two rails (3) of a track, and having a first measuring base (7) an inertial measuring unit (8) and for a position determination with respect to each rail (3) at least one non-contact position measuring device (9) are arranged. It is provided that a lowerable second measuring base (11) is arranged, which comprises measuring wheels (12) which can be placed on the rails (3) and which is connected to the first measuring base (7) via compensation measuring devices (20, 22).
    公开号:AT519263A4
    申请号:T573/2016
    申请日:2016-12-19
    公开日:2018-05-15
    发明作者:
    申请人:Plasser & Theurer Export Von Bahnbaumaschinen Gmbh；
    IPC主号:
    专利说明:

    description
    Track measuring vehicle and method for detecting a track geometry of a track
    TECHNICAL FIELD The invention relates to a track measuring vehicle for detecting a track geometry of a track, with a vehicle frame that is movable on two rails of a track and has rail bogies, and with a first measuring base on which an inertial measuring unit and for a position determination with respect to each rail has at least one non-contact position measuring device are arranged. In addition, the invention relates to a method for operating such a track measuring vehicle.
    State of the art [02] Regular checks are required for maintenance of the track superstructure. For this purpose, the track is traversed at regular intervals with a track measuring device in the form of a track measuring vehicle, which records the track geometry in order to subsequently evaluate it. Since the track geometry has a direct impact on the driving dynamics of a vehicle traveling on rails, a precise measurement is crucial for the assessment of rail safety. Track measuring vehicles have therefore been known for a long time.
    [03] Measuring systems with mechanical sensors that are constantly in contact with the track with moving point sensors are often used. The track geometry can then be derived from the movement of the sensors. Such a device is known for example from DE 39 14 830 A1.
    [04] In newer optical and inertial measuring systems, contactless laser sensors are used to derive the desired track geometry measurement data. The vertical track position is calculated from a difference between two distance measurands that relate to a coordinate system. This also overcomes the speed restrictions of mechanical measuring systems.
    / 13 • · · · · ♦ · · · · · · ·· • · · · ······ ·· ············· ····· ···· , 1631 • · · · · · ·· · ·
    2/10 [05] Due to snow or sand drifts on the track, the optical measuring systems reach their limits and can therefore no longer correctly record the track geometry. From DE 41 36 904 A1, for example, a device for contactless distance measurement of rails of a track is known. An inertial measuring system is described in the technical journal Eisenbahningenieur (52) 9/2001 on pages 6-9.
    Summary of the invention [06] The object of the invention is to provide an improvement over the prior art for a track measuring vehicle of the type mentioned at the beginning. Another object is to present a method for operating an improved track measuring vehicle.
    [07] According to the invention, these objects are achieved by a track measuring vehicle according to claim 1 and a method according to claim
    14. Dependent claims indicate advantageous embodiments of the invention.
    The invention provides that a lowerable second measuring base is arranged, which comprises measuring wheels that can be placed on the rails and is connected to the first measuring base via compensation measuring devices. Thus, as soon as the non-contact position measuring devices reach their limits, for example due to heavy rain, snow or sand drifts, the track measurement can be continued without gaps using the lowerable mechanical second measuring base. The compensation measuring devices continuously record a change in position of the second measuring base in relation to the inertial measuring unit. The track geometry can thus be derived in a simple manner from the measurement data of the inertial measuring unit.
    [09] In an advantageous embodiment of the invention it is provided that on the first measurement basis for the position determination with respect to the respective one
    Rail two spaced position measuring devices are arranged. As a result, no minimum speed of the track measuring vehicle is necessary as with a single-point measurement per rail. A slope or a / 13 • · ·· ····· ·· ·· • · · · ·· · · · • · · · ······ ·· • · · · · ···· · · · · ·.
    • · · · · · · · · · 1531 ***** ····· 1 I
    3.10
    Slope and thus the longitudinal height of the respective rail can also be measured when the vehicle is stationary or when starting off.
    [10] In an advantageous further development, the position measuring devices are designed as laser line scanners. The advantage here is the very short response time and measuring frequency of the laser line scanner.
    [11] Another advantageous embodiment is that the compensation measuring devices are designed as displacement and / or angle measuring devices. The relative movement between the first and the second measuring base can thus be precisely detected.
    [12] A further improvement of the device according to the invention provides that the first measuring base is designed as a chassis frame of a rail chassis. This eliminates the need for an additional measuring frame.
    [13] In an advantageous further development, the second measuring base comprises a first telescopic axis with two measuring wheels, which is lowered on the chassis frame. If necessary, the second measuring base is lowered onto the track, with the telescopic axis being adapted to the track width of the track.
    In an advantageous embodiment of the invention it is provided that the second measuring base comprises a second telescopic axis with two measuring wheels, which is rotatably mounted about a longitudinal axis of the track vehicle relative to the first telescopic axis. As a result, the relative movement with respect to the first telescope axis can be measured, as occurs, for example, when the track is elevated. Another advantage here is that a minimum speed of the track measuring vehicle is not necessary.
    [15] It also makes sense if the respective telescopic axis is assigned a pneumatic drive for pressing the measuring wheels against the rails. This ensures precise tracking of the track and a perfect measurement result.
    [16] A simple embodiment of the invention provides that the second measuring base is connected to the chassis frame via pneumatic drives. The respective pneumatic drive allows a powerless
    4.13
    1631
    4.10
    Hold at constant force, whereby the second measuring base is permanently pressed against the rails.
    A further advantageous embodiment of the invention is given in that the track measuring vehicle comprises an evaluation device which is set up for evaluating the measurement results of the interactive measuring unit, the position measuring devices and the compensation measuring devices. This central evaluation device thus processes the data of the optical and also the mechanical measurements.
    [18] For a spatial position detection, it makes sense if the track measuring vehicle comprises a GNNS antenna for receiving signals from a global navigation satellite system. This enables a simple spatial assignment of the measurement results.
    A further improvement of the invention provides that the second measuring base can be locked in a raised position by a safety device. As a result, when using the non-contact position measuring devices, the second measuring base can be correspondingly secured in a raised rest position.
    [20] The safety device is preferably designed as a safety hook, as a result of which there is a structurally simple but nevertheless effective solution.
    The method according to the invention provides that while the track measuring vehicle is moving, a space curve is recorded by means of the inertial measuring unit, that in a first operating mode the space curve is transformed into a space curve corresponding to the course of the track by means of measurement data from the position measuring devices, and that in a second operating mode when the track is lowered second measurement basis, the space curve is transformed into a space curve corresponding to the course of the track by means of measurement data from the compensation measuring devices. It is advantageous here that a common inertial measuring unit is used to record the space curve in both operating modes.
    [22] In a further embodiment of the method, it is provided that the first and second operating modes are automatically switched depending on a measurement signal. If, due to difficult conditions, the position measuring devices are not able to provide an exact / 13 ·· ·· ····· ·· ·· • · · · ·· · ·· • · · · ······ ·· • · · · ···· · · · · dCOd ··· ♦ · ····· 1631 ·· ·· · · ·· · ·
    5.10
    Detecting the measurement result is automatically switched to the second operating mode. This also applies in reverse order if the conditions on the track allow optical measurement again, the system automatically switches from the second to the first operating mode.
    BRIEF DESCRIPTION OF THE DRAWINGS [23] The invention is explained below by way of example with reference to the accompanying figures. In a schematic representation:
    1 shows a track measuring vehicle including a bogie,
    2 shows a 3D view of the first and second measurement bases and
    Fig. 3 is a bottom view of the bogie.
    DESCRIPTION OF THE EMBODIMENTS [24] A track measuring vehicle 1, shown in simplified form in FIG. 1, for detecting a track geometry of a track 2 with rail carriages 4 movable on rails 3 and a vehicle frame 5 supported thereon has a first measuring base 7, designed as a chassis frame 6, including an inertial measuring unit 8 and position measuring devices 9 and a second measuring base 11 that can be lowered via first pneumatic drives 10.
    [25] The second measuring base 11 includes those that can be placed on the rails 3
    Measuring wheels 12 and is connected via coupling rods 14 to the first measuring base 7. The coupling rods 14 are rotatably supported on the first measuring base 7 at their upper end 15 and are each connected to a first telescopic axis 17 and a second telescopic axis 18 at their lower end 16. The first telescopic axis 17 is rotatably mounted relative to the second telescopic axis 18 about a longitudinal axis 19 of the track vehicle (FIG. 2).
    [26] Brackets 26 can be arranged on the chassis frame 6, on which the first pneumatic drives 10 are supported. It is thus possible to retrofit 4 brackets 26 and the frame of the first measuring base 7 to existing rail carriages.
    / 13 • · · · · · ···· · · · ·· • ·· · ······ ·· ············· Α r-OX ··· ·· ····· 1631 • · ·· · · ·· ··
    6/10 [27] A GNNS antenna 24 for receiving signals from a global navigation satellite system and an evaluation device 23 are arranged on the track measuring vehicle 1. In a raised position, the second measuring base 11 is locked by safety devices 25, which are preferably designed as safety hooks.
    [28] FIG. 2 shows a part of the first measuring base 7 and the second measuring base 11 in the lowered state. Position measuring devices 9 are attached to an underside of the first measuring base 7 at the end of the rail undercarriage 4. These are preferably designed as laser line scanners, with two laser line scanners each being directed against an inner edge of a rail 3.
    [29] On the first measuring base 7, the inertial measuring unit 8 is preferably arranged centrally between two position measuring devices 9 in order to record a space curve in the middle of the track. The first measuring base 7 thus forms a rigid device with the undercarriage frame 6, the position measuring devices 9 and the interactive measuring unit 8. In the first operating mode, the position of the first measuring base 7 with respect to the rails is continuously recorded by means of the position measuring devices 9.
    [30] In the second operating mode, the second measuring base 11 is lowered onto the track 2 by means of the first pneumatic drives 10. A first displacement measuring device 20 is arranged on the first pneumatic drives 10 as compensation measuring devices. A vertical relative movement between the first measuring base 7 and the second measuring base 11 is thus detected. Alternatively, an angle measuring device can also be attached to the coupling rods 14 for detecting the relative movement.
    3 shows a view from below of the rail undercarriage 4. A second pneumatic drive 21 is arranged on the telescopic axes 17, 18 for the lateral pressing of the measuring wheels 12 onto the rails 3. In order to prevent a measuring wheel 12 from being pressed into a rail gap when a switch or crossing is passed, a guide sword 13 is assigned to each measuring wheel 12. As soon as it is guided on a wheel control arm, it holds back the assigned measuring wheel 12 and thus counteracts the contact pressure.
    7.13
    1631 ·· ·· ····· ·· · · • ♦ · · ·· · ·· • ·· · ······ ·· • ·· · · ····· · · · • · · · ····· • · ·· · · ·· · ·
    7/10 [32] In the middle between the telescopic measuring axes 17, 18, second displacement measuring devices 22 are arranged as compensation measuring devices, which detect a lateral displacement of the second measuring base 11 with respect to the first measuring base 7. In this way, the position of the first measuring base 7 relative to the rails 3 is recorded in the second operating mode by means of the mechanical compensation measuring devices 20, 22.
    [33] In a variant not shown, the first measuring base 7 is decoupled from the rail undercarriage 4 as a frame on the wheel axles of the rail wheels. This enables a direct measurement of the vertical rail course and only a lateral relative movement of the first measuring base 7 with respect to the rails 3 has to be recorded.
    [34] The evaluation device 23 is supplied with the measurement signals from the inertial measurement unit 8, the contactless position measurement devices 9 and the compensation measurement devices 20, 22. A plausibility check of the signals of the position measuring devices 9 is advantageously carried out continuously. As soon as signal jumps or signal failures are detected, the second measuring base 11 is lowered and switched from the first to the second operating mode.
    8/13 • · • ·
    1631 • · · ···· · • · ·· ···· • · · · 9
    9 9 99
    9 9 99
    9 9 99
    9 9 99
    8.10
    权利要求:
    Claims (15)
    [1]
    claims
    1. track measuring vehicle (1) for detecting a track geometry of a track (2), with a vehicle frame (5) that can be moved and has rail carriages (4) on two rails (3) of a track (2), and with a first measuring base (7), on which an inertial measuring unit (8) and at least one non-contact position measuring device (9) are arranged for a position determination relative to each rail (3), characterized in that a lowerable second measuring base (11) is arranged, which measuring wheels can be placed on the rails (3) (12) and is connected to the first measuring base (7) via compensation measuring devices (20, 22).
    [2]
    2. Track measuring vehicle (1) according to claim 1, characterized in that on the first measuring base (7) for position determination relative to the respective rail (3) two spaced-apart position measuring devices (9) are arranged.
    [3]
    3. Track measuring vehicle (1) according to claim 1 or 2, characterized in that the position measuring devices (9) are designed as laser line scanners.
    [4]
    4. Track measuring vehicle (1) according to one of claims 1 to 3, characterized in that the compensation measuring devices (20, 22) are designed as displacement and / or angle measuring devices.
    [5]
    5. Track measuring vehicle (1) according to one of claims 1 to 4, characterized in that the first measuring base (7) is designed as a chassis frame (6) of a rail chassis (4).
    [6]
    6. Track measuring vehicle (1) according to claim 5, characterized in that the second measuring base (11) comprises a first telescopic axis (17) with two measuring wheels (12) which is lowered on the chassis frame (6).
    9/13 ·· · 9 ····· ·· ·· • · · · · · · ·· • · · · ······ ·· • * · * # ···· · · · · ΑΓ ^ Α ····· ··. ·. 1631 • ··· · · ·· ··
    9.10
    [7]
    7. Track measuring vehicle (1) according to claim 6, characterized in that the second measuring base (11) comprises a second telescopic axis (18) with two measuring wheels (12) which are rotatably mounted about the longitudinal axis of the rail vehicle (19) relative to the first telescopic axis (17) is.
    [8]
    8. Track measuring vehicle (1) according to claim 6 or 7, characterized in that the respective telescopic axis (17, 18) is assigned a second pneumatic drive (21) for laterally pressing the measuring wheels (12) onto the rails (3).
    [9]
    9. track measuring vehicle (1) according to one of claims 5 to 8, characterized in that the second measuring base (11) via first pneumatic drives (10) is connected to the chassis frame (6).
    [10]
    10. Track measuring vehicle (1) according to one of claims 1 to 9, characterized in that the track measuring vehicle (1) comprises an evaluation device (23) which for evaluating the measurement results of the interactive measuring unit (8)
    Position measuring devices (9) and the compensation measuring devices (20, 22) is set up.
    [11]
    11. Track measuring vehicle (1) according to one of claims 1 to 10, characterized in that the track measuring vehicle (1) has a GNNS antenna (24) for
    Receiving signals from a global navigation satellite system includes.
    [12]
    12. Track measuring vehicle (1) according to one of claims 1 to 11, characterized in that the second measuring base (11) can be locked in a raised position by a safety device (25).
    [13]
    13. Track measuring vehicle (1) according to claim 12, characterized in that the safety device (25) is designed as a safety hook.
    [14]
    14. A method for operating a track measuring vehicle (1) according to one of the
    Claims 1 to 13, characterized in that during a trip of
    Track measuring vehicle (1) detects a space curve by means of the inertial measuring unit (8)
    10/13
    1631
    It becomes 10/10 that in a first operating mode the space curve is transformed into a space curve corresponding to the track profile using measurement data from the position measuring devices (9) and that in a second operating mode with the second measuring base (11) lowered, the space curve is measured into a track profile using measurement data from the compensation measuring devices corresponding space curve is transformed.
    [15]
    15. The method according to claim 14, characterized in that there is an automatic switchover between the first and second operating modes as a function of a measurement signal.
    11/13 ·· ·· ····· ·· ··
    • • • • • · • • • • • • • • · · ··· • ft • • • • • ···· • · • • • • • • • · • · • • «·• ·• · • ft • ·
    12/13
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2386455B2|2019-07-31|Rail inspecting device
    EP3535456B1|2020-12-09|Track-laying machine with track-layout-measuring system
    AT402519B|1997-06-25|CONTINUOUSLY RIDABLE RAILWAY MACHINE FOR COMPRESSING THE GRAVEL BED OF A TRACK
    EP0479764B1|1993-12-08|Machine for the control of catenary wire
    AT517345B1|2017-01-15|Track construction machine for the implementation of track position corrections
    EP3160820B1|2019-11-27|Device and method for determining at least one property of a track for a rail vehicle and rail vehicle
    EP3555365B1|2020-10-07|Measurement device and method for detecting a track geometry
    EP3554919B1|2020-10-21|Track-measuring vehicle and method for recording track geometry
    EP0668988A1|1995-08-30|Process and device for acquiring profile and railway data
    AT520266A1|2019-02-15|Method and device for measuring a position on a track
    EP0652325B1|1999-05-19|Railroad maintenance machine for correcting the position of the track
    EP1361136B1|2004-10-20|Measuring method for detecting the compliance of a track and vehicle for carrying out said method
    EP2216441A2|2010-08-11|Levelling system for rail technology
    DE3444723A1|1986-06-12|Device for detecting the track geometry by means of a laser
    EP3580393B1|2021-04-07|Method and railway vehicle for contactlessly capturing a track geometry
    DE112010000427B4|2014-06-05|Rail vehicle with a machine frame that can be moved by track gear on a track
    AT520291A4|2019-03-15|Method for determining an actual position of rails of a track
    WO2017013025A1|2017-01-26|Rail vehicle
    AT522453B1|2020-11-15|Distance measuring device for a mobile track construction machine
    AT520526B1|2019-05-15|Rail vehicle and method for measuring a track section
    EP3584366A1|2019-12-25|Railway carriage
    AT394687B|1992-05-25|Machine for monitoring the contact wire of an overhead line
    同族专利:
    公开号 | 公开日
    CN110087967A|2019-08-02|
    JP2020502402A|2020-01-23|
    PL3554919T3|2021-04-19|
    US20190344813A1|2019-11-14|
    EA201900207A1|2019-11-29|
    EP3554919A1|2019-10-23|
    EP3554919B1|2020-10-21|
    CA3042136A1|2018-06-28|
    ES2835806T3|2021-06-23|
    AT519263B1|2018-05-15|
    EA036183B1|2020-10-12|
    CN110087967B|2020-10-16|
    WO2018114233A1|2018-06-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3914830A1|1989-02-06|1990-11-08|Gewerk Schalker Eisenhuette|Measuring railway track width - involves equipment mounted on torsionally stiff frame fixed to rail vehicle|
    US5203089A|1990-06-12|1993-04-20|Cegelec|Railroad vehicle for measuring the geometrical parameters of railroad track|
    DE4136904A1|1990-11-12|1992-05-14|Plasser Bahnbaumasch Franz|DEVICE FOR CONTACTLESS DISTANCE MEASUREMENT OF RAILS OF A TRACK|
    US6725782B1|2003-03-24|2004-04-27|Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H|Railroad test vehicle comprising a railroad measurement axle suspension|
    US4654973A|1985-10-21|1987-04-07|Worthy James T|Railroad track gage|
    AT402519B|1990-02-06|1997-06-25|Plasser Bahnbaumasch Franz|CONTINUOUSLY RIDABLE RAILWAY MACHINE FOR COMPRESSING THE GRAVEL BED OF A TRACK|
    US7164975B2|1999-06-15|2007-01-16|Andian Technologies Ltd.|Geometric track and track/vehicle analyzers and methods for controlling railroad systems|
    WO2008122319A1|2007-04-05|2008-10-16|Siemens Transportation Systems Gmbh & Co. Kg|Measuring arrangement for the contactless and continuous determination of routing and track layout of railroad tracks|
    CN202298394U|2011-10-19|2012-07-04|北京鼎汉检测技术有限公司|Detection system for dynamically detecting track gauge of railway track|
    CN106092056B|2016-06-28|2018-07-13|中国人民解放军国防科学技术大学|A kind of vehicle-mounted dynamic monitoring method of high-speed railway bridge foundation settlement deformation|CN110672026A|2019-08-30|2020-01-10|泉州佰桀智能制鞋设备研究院有限公司|Roller coaster track detection method, intelligent detection robot and detection system|
    CN110979399B|2019-12-27|2021-09-28|郑州铁路职业技术学院|Dynamic detection method for high-speed railway track condition|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA573/2016A|AT519263B1|2016-12-19|2016-12-19|Track measuring vehicle and method for detecting a track geometry of a track|ATA573/2016A| AT519263B1|2016-12-19|2016-12-19|Track measuring vehicle and method for detecting a track geometry of a track|
    EA201900207A| EA036183B1|2016-12-19|2017-11-27|Track-measuring vehicle and method for recording track geometry|
    CA3042136A| CA3042136A1|2016-12-19|2017-11-27|Track-measuring vehicle and method for recording track geometry|
    PL17807822T| PL3554919T3|2016-12-19|2017-11-27|Track-measuring vehicle and method for recording track geometry|
    CN201780078556.4A| CN110087967B|2016-12-19|2017-11-27|Rail measuring vehicle and method for recording the rail geometry of a rail|
    PCT/EP2017/080505| WO2018114233A1|2016-12-19|2017-11-27|Track-measuring vehicle and method for recording track geometry|
    EP17807822.6A| EP3554919B1|2016-12-19|2017-11-27|Track-measuring vehicle and method for recording track geometry|
    ES17807822T| ES2835806T3|2016-12-19|2017-11-27|Track measurement vehicle and procedure for recording a track geometry|
    US16/464,786| US20190344813A1|2016-12-19|2017-11-27|Track measuring vehicle and method for recording a track geometry of a track|
    JP2019532995A| JP2020502402A|2016-12-19|2017-11-27|Track inspection vehicle and method of detecting track shape|
    [返回顶部]