• 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:
    To perform track position corrections, a track position measuring system (9) is provided, which is composed of a machine frame (3) and a number of the position of the rail (4) detecting track position measuring devices (1 0). These have laser scanners for non-contact scanning of the rail (4) and are connected with respect to a vertical unchangeable with serving as a measuring base machine frame (3).
    公开号:AT515208A4
    申请号:T122/2014
    申请日:2014-02-20
    公开日:2015-07-15
    发明作者:
    申请人:Plasser & Theurer Export Von Bahnbaumaschinen Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a track construction machine for carrying out track position corrections, comprising a machine frame that can be moved by rails on rails of a track, and a track position measuring system which is composed of a number of track position measuring devices which detect the position of the track and the machine frame serving as a common measuring base , The invention also relates to a method for determining track position errors.
    Such a track construction machine is known from AT 394 742 and is designed to underlay a track. Rail track measuring devices are two rail carriages connected to one another by a machine frame and a measuring axle positioned between them and movable on the track. The machine frame is intended as a common measuring base. In order to preclude a falsification of the measured values as a result of the deflection of the rail carriages, non-contact laser sensors for measuring a distance between the machine frame and the rail are provided in the vicinity.
    The object of the present invention is now to provide a track construction machine of the aforementioned type and a method with which a simplified track position measurement is feasible.
    This object is achieved with a track construction machine bzw.einem method of the generic type by the features cited in the characterizing part of claim 1 and 5, respectively.
    With such trained track position measuring devices a precise registration of the track position errors is possible. Since now no measuring axes have to be contacted with the track, both the commissioning and decommissioning are advantageously simplified substantially. Further advantages of the invention result from the further claims and the drawing description.
    In the following the invention will be described in more detail with reference to an embodiment shown in the drawing. 1 is a side view of a track construction machine designed as a tamping machine, FIG. Figure 2 is a schematic plan view of a track-laying measuring system of the track-laying machine, Figure 3 is a schematic side view of the track-laying measuring system, and Figures 4, 5 are each a simplified illustration of a track-level measuring device.
    An illustrated in Fig. 1, designed as a tamping track construction machine 1 has a supported on rail chassis 2 machine frame 3 and is movable on rails 4 of a track 5. Between the two rail bogies 2, a tamping unit 6 is arranged for Unterstop¬fen the track 5. With regard to a working direction 7, a track lifting and straightening unit 8 is connected to the machine frame 3 immediately before the tamping unit 6. For the determination of track position errors, a track position measuring system 9 is provided, which is composed of a number of track position measuring devices 10 detecting the position of the rails 4 and the machine frame 3 serving as the common measuring base. This thus assumes the function of steel tendons which are widely known from the prior art.
    Each track-laying measuring device 10 is designed as a 2D laser scanner 13 (FIG. 2) for non-contact scanning of the rail 4 and connected immovably to the machine frame 3 with respect to a vertical. The track-laying measuring system 9 also comprises a strain gauge 11 which is used to measure the deflection of the rail Machine frame 3 is centrally mounted on this.
    As can be seen in FIG. 3, a selective steering camera 12, which is known per se, is provided for an optional connection of the track position measuring system 9 to a laser pre-measuring system, which is positioned in front of the track construction machine 1. Various pendulums are used to detect a track bank.
    In Fig. 2, the individual track position measuring devices 10 are each shown as extending in the rail longitudinal direction view, each with a cross section through the scanned rail 4, while the machine frame 3 is shown in plan view and for simplicity only as a line. For each rail 4, a total of four in a rail or Maschi¬nenlängsrichtung successively arranged track position measuring devices 10 are provided. In the area of the two foremost measuring devices 10 with respect to the working direction 7, a further laser scanner 13 is provided in each case, which is specifically directed to a rail inner edge in order to determine it exactly for detecting the arrow heights.
    The track position measuring devices 10 (or which follow the foremost pair with respect to the working direction 7) between the tamping unit 6 and the track lifter leveling unit 8 are designed to be displaceable relative to the machine frame 3 in a vehicle transverse direction 14 Rail track unhindered in a track bend follow.
    In Fig. 4 of the movable relative to the machine frame 3 Laserscan¬ner 13 is shown enlarged. The latter has a mirror 15, which reciprocates in vehicle transverse direction 14, for deflecting a laser beam 16. As a result, in each case a cross-sectional profile of the rail 4 is scanned in conjunction with a multiplicity of successive laser beams 16 (see FIG. 5).
    With this scanning movement in a normal to the rail longitudinal direction running y-axis and a z-axis extending in the vertical direction, both an upper rail edge (SOK) for the altitude and a rail inner edge (SIK) can be registered for an arrow height (s.
    Fig. 5). This is composed of a transverse displacement path q (resulting from the transverse displacement relative to the machine frame 3) and a distance a defined by the transverse movement of the mirror 15. The rail top edge (SOK) results from the shortest vertical distance h with respect to the rail 4.
    The measuring signals output by the track position measuring devices 10 and by the strain gauges 11 are fed to a computing unit 17 in order to determine the lifting and reading values required for a correction of the track position. The consideration of the deflection of the machine frame 3 is advantageous in that high lifting or straightening forces are required for the movement of the track 5 in the case of larger track-laying deflectors. As a result of the compensation of the deflection automatically carried out by the arithmetic unit 17, this compensation has no disturbing influence on the measuring accuracy.
    权利要求:
    Claims (7)
    [1]
    1. Track-laying machine for carrying out track position corrections, comprising a machine frame (3) which can be moved by rail carriages (2) on rails (4) of a track (5) and a track-position measuring system (9), which consists of a number of positions of the rail ( 4) and the common machine frame (3), characterized in that the track position measuring means (10) are adapted for non-contact scanning of the rail (4) and are vertically fixed to the machine frame (3) are connected.
    [2]
    A track construction machine according to claim 1, characterized in that the track position measuring means (10) is formed as a two-dimensional laser scanner (13) for scanning in a y-axis normal to a rail longitudinal direction and in a z-axis extending in the vertical direction.
    [3]
    3. Track construction machine according to claim 1 or 2, characterized in that the machine frame (3) for measuring its deflection with a Dehn¬messstreifen (11) is connected.
    [4]
    4. Track construction machine according to one of claims 1, 2 or 3, characterized ge indicates that - seen with respect to the rail or vehicle longitudinal direction - between two end positionally positioned track position measuring devices (10) arranged central track position measuring device (10) in one Vehicle transverse direction (14) relative to the machine frame (3) is designed to be displaceable.
    [5]
    5. Method for determining track position errors by scanning rails (4) of a track (5) in a number of track position measuring devices spaced apart in a track longitudinal direction and refering to a trackable machine frame (3) as a common measuring base ( 10), characterized in that at each track position measuring device (10) a non-contact two-dimensional scanning of a cross-sectional profile of the rail (4) takes place, with permanent measurement of a distance (h) between the track position measuring device (10) and the rail (4 ) A laser beam (16) is moved in Schie¬nenquerrichtung.
    [6]
    6. The method according to claim 5, characterized in that with a smallest distance (h) a reference point is registered as rail top edge (SOK) for a level of gliding height.
    [7]
    7. The method according to claim 5, characterized in that parallel to the scanning of the rail (4) a deflection of the machine frame (3) is measured and taken into account for the determination of the track position error.
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2015124253A1|2015-08-27|
    CN105960490A|2016-09-21|
    AT515208B1|2015-07-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT371171B|1981-01-28|1983-06-10|Plasser Bahnbaumasch Franz|TRACK LEVELING PLUG AND LEVELING MACHINE WITH STABILIZATION UNIT|AT518839A1|2016-07-11|2018-01-15|Plasser & Theurer Exp Von Bahnbaumaschinen G M B H|System and method for measuring a track|AT402519B|1990-02-06|1997-06-25|Plasser Bahnbaumasch Franz|CONTINUOUSLY RIDABLE RAILWAY MACHINE FOR COMPRESSING THE GRAVEL BED OF A TRACK|
    AT394742B|1990-02-06|1992-06-10|Plasser Bahnbaumasch Franz|TRACKING MACHINE|
    DE19580678T1|1994-06-23|1997-05-22|Leif Groenskov|Arrangement for measuring the rail quality, in which a movable frame is attached to the chassis|
    JP4886566B2|2007-03-26|2012-02-29|株式会社日立ハイテクノロジーズ|Rail height detection method, rail height detection mechanism, and rail height displacement measuring device|
    AT504517B1|2007-04-12|2008-06-15|Plasser Bahnbaumasch Franz|Method for controlled lowering of track, involves capturing and recording longitudinal slope of track in rear scanning location of measuring system according to displacement measurement|
    CN103061218A|2012-08-05|2013-04-24|许文军|Special calibration instrument for rail track|
    CN102828452B|2012-09-04|2014-06-04|中铁十四局集团有限公司|I-PMS -based accurate-adjustment measuring and remote monitoring system of I-type track board for passenger transport line|AT517345B1|2015-06-17|2017-01-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Track construction machine for the implementation of track position corrections|
    AT519088B1|2017-02-07|2018-04-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Method for the contactless detection of a track geometry|
    AT520266A1|2017-08-07|2019-02-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Method and device for measuring a position on a track|
    AT520795B1|2017-12-21|2020-03-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Track construction machine and method for leveling a track|
    AT520526B1|2018-02-02|2019-05-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Rail vehicle and method for measuring a track section|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA122/2014A|AT515208B1|2014-02-20|2014-02-20|Track-laying machine for performing track position corrections and procedures|ATA122/2014A| AT515208B1|2014-02-20|2014-02-20|Track-laying machine for performing track position corrections and procedures|
    PCT/EP2015/000134| WO2015124253A1|2014-02-20|2015-01-24|Method for track position measurement using a laser scanner, detecting machine frame deformation by means of strain gauges|
    CN201580006878.9A| CN105960490A|2014-02-20|2015-01-24|Method for track position measurement using a laser scanner, detecting machine frame deformation by means of strain gauges|
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