• 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 construction machine (1) for carrying out track position corrections, comprising a machine frame (3) which can be moved by rails (4) on rails (4) of a track (5) and a track position measuring system (11) which has two relative positions with respect to one machine longitudinal direction (6) outer measuring devices (12, 13) and a central measuring device (14) with a common reference base (15), wherein the measuring means (12, 13, 14) are determined in their position relative to the rails (4). In this case, between the outer measuring devices (12, 13) as a reference base (15) two aligned measuring chords (16, 17) stretched, wherein the average measuring device (14) has a measuring sensor (25) for detecting position data of the two measuring chords (16, 17 ) and wherein the position data are fed to an evaluation device (18) in order to determine a longitudinal height for each rail (4) and an arrow height. This is sufficient two measuring chords (16, 17) to capture all track position parameters.
    公开号:AT519316A1
    申请号:T505/2016
    申请日:2016-11-04
    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 construction machine with track position measurement system
    TECHNICAL FIELD The invention relates to a track construction machine for performing
    Track position corrections, with a machine frame that can be moved on rails of a track by means of rail carriages and a track position measuring system that comprises two outer measuring devices and a middle measuring device with a common reference base with respect to a machine longitudinal direction, the measuring devices being determined in their position relative to the rails. In addition, the invention relates to a method for operating such a track construction machine.
    PRIOR ART [1] EP 1 650 348 A2 describes a track construction machine designed as a cleaning machine. This includes a track position measuring system with two measuring chords arranged one behind the other as a reference basis. The track position is recorded with the front chord before a cleaning process. After the cleaning process, the track position is corrected using the second measuring chord. The track position is simulated using the arrow height. Longitudinal heights of the rails are not taken into account.
    [03] A track construction machine designed as a tamping machine is known from patent specification AT 382 410 B. There, a measuring chord is assigned to each rail of a track as a reference base. The respective rail position is recorded by means of external measuring devices and transferred to the corresponding measuring chord via adjustable linkages. In this way, the measuring chords serve to determine a respective longitudinal rail height (altitude) in the area of a middle measuring device. For this purpose, fork-like sensing elements of the middle measuring device tap the position of both measuring chords. With this solution, sufficient space must be available for the measuring chords arranged in the upper area of the machine and for the transmission rods.
    / 20th
    1627
    Summary of the invention [04] The object of the invention is to provide an improvement over the prior art for a track construction machine and a method of the type mentioned at the beginning.
    [05] According to the invention, this object is achieved by independent claims 1 and 12. Dependent claims indicate advantageous embodiments of the invention.
    [06] In this case, two measuring chords aligned with one another are stretched between the outer measuring devices as a reference base, the middle measuring device comprising a measuring sensor for recording position data of the two measuring chords and the position data being fed to an evaluation device in order to add a longitudinal height for each rail and an arrow height determine. This means that two measuring chords are sufficient to record all track position parameters. Both longitudinal track heights can be determined via a recorded torsion. The arrow height is determined by determining the lateral position of the chord, with redundancy being provided by the two chords.
    [07] In an advantageous embodiment of the invention, the two measuring chords are aligned parallel to one another in a neutral position of the outer measuring devices. The evaluation of the rail height positions is based on the distance between the measuring chords in the area of the middle measuring device. Due to the parallelism of the measuring chords, this distance is easily determined. In addition, an identical measuring chord clamping device is arranged on both outer measuring devices.
    [08] Furthermore, it is advantageous if each outer measuring device comprises an inclinometer. In the simplest case, this is a pendulum, with which an elevation is detected in the area of the respective measuring device. This considerably simplifies the evaluation of the recorded measuring chord position data by compensating for the respective superelevation.
    A further simplification provides that each outer measuring device comprises an inclination compensation device around the two measuring chords with respect to a rotation axis in / 20 running in the machine longitudinal direction
    1627
    3/12
    Hold position. A transverse inclination of the middle measuring device can thus be derived directly from the recorded position data of the measuring chords, because peaks in the area of the outer measuring devices are compensated mechanically.
    [10] The evaluation is again simplified if each outer measuring device comprises a lateral guide device in order to keep the measuring chords in the middle of the track in the region of the middle measuring device when cornering. The ends of the measuring chords are shifted in the lateral direction, the arrow height of the track resulting from the displacement paths and the measuring chord position data. In addition, there is no risk of collision for the measuring chords with any work units in the area of the middle measuring device.
    [11] For reliable detection of the position data, it is advantageous if the sensor is designed as an optical measuring sensor. This is, for example, a laser line sensor that is available in a robust industrial version and has sufficient measuring accuracy.
    In a favorable embodiment of the invention, each measuring device is designed as a rail-guided measuring carriage. The position of the measuring devices relative to the rails is thus determined by means of flanged rollers that can be pressed laterally against the rails.
    An alternative embodiment provides that at least one measuring device is designed as a measuring platform, which is arranged on a rail running gear or on the machine frame and comprises two position measuring sensors each assigned to a rail. This eliminates wear-prone components such as flanged wheels and the position of the measuring device relative to the rails is determined very precisely.
    [14] When the track construction machine is designed as a tamping machine, it makes sense if the middle measuring device is arranged on a track lifting and straightening unit that can be moved to the machine frame. In this way, the middle measuring device is held in the middle of the track.
    [15] To increase the measuring accuracy, the two measuring chords are compared to one or / 20 emitted by the track construction machine
    1627 • · · · · · «• ·· · · · · ··· * · · ·· ·· · • · · · · ·· · '*' * 4/1 * 2 * '*' received laser beam aligned , This makes it easy to extend the reference base.
    [16] In addition, it is advantageous if the evaluation device comprises a low-pass filter in order to filter vibrations of the respective measuring chord. This eliminates disturbing vibrations caused, for example, by
    Work aggregates of the track construction machine are caused.
    The method according to the invention provides that by means of the
    The position of the measuring chords in the area of the middle
    Measuring device is detected and that by means of the evaluation device
    Longitudinal height for each rail and the arrow height can be calculated. All
    Track parameters can thus be determined with a few procedural steps.
    [18] It makes sense if an inclination is recorded for each external measuring device and included in the calculation. The position sensor at one point of the respective measuring chord is then sufficient by means of the sensor.
    [19] In a further version of the method, it is provided that a lateral displacement is recorded for each outer measuring device and included in the calculation. This keeps the measuring chords positioned in the middle of the middle of the track.
    [20] A further improvement of the process is given if the
    Evaluation device vibrations of the respective measuring chord are weakened above a predetermined limit frequency. Typical vibration frequencies of work units are used to determine the limit frequency.
    BRIEF DESCRIPTION OF THE DRAWINGS [21] The invention is explained below by way of example with reference to the accompanying figures. It show in schematic
    Presentation:
    Fig. 1 track construction machine in a side view
    Fig. 2 components of the track position measurement system
    Fig. 3 track position measurement system in a side view
    4 detail of an external measuring device / 20
    1627 ····· · ···· • · · ······· · · · “* 5/1 * 2 * **” * ”
    Fig. 5 geometric relationships
    DESCRIPTION OF THE EMBODIMENTS [22] A track construction machine 1 shown in FIG. 1 for carrying out track position corrections has a machine frame 3 supported on rail carriages 2 and can be moved on rails 4 of a track 5. A satellite frame 7, which is displaceable relative to the machine frame 3 in a machine longitudinal direction 6, is arranged between the two rail bogies 2. With this satellite frame 7, a tamping unit 8 for tamping the track 5 and in a working direction 9 a track lifting and straightening unit 10 are connected as working units.
    [23] A track position measurement system 11 is provided for determining track position errors. With respect to the machine longitudinal direction 6, this comprises two outer measuring devices 12, 13, which can be seen in the working direction 9 as a front measuring device 12 and a rear measuring device 13. In between there is a middle measuring device 14 for detecting the track position in the area of the working units 8, 10. A first measuring chord 16 and a second measuring chord 17 aligned with it are stretched as a common reference base 15 between the two outer measuring devices 12, 13.
    [24] In an advantageous embodiment, the alignment of the two measuring chords 16, 17 takes place in such a way that their ends are clamped on the respective measuring device 12, 13 in a plane with the same distance from one another. The measuring chords 16, 17 thus run parallel to one another in a neutral (torsion-free) position of the outer measuring devices 12, 13.
    [25] Furthermore, the track position measuring system 11 comprises an evaluation device 18, which is designed, for example, as a computer and is connected to the measuring devices 12, 13, 14 via a bus system. A laser receiver 19 is optionally arranged on the front measuring device 12 in order to receive a laser beam 20. This is from a / 20
    1627 ····· · · · · · · • · ···········, • ·· · · · · · · * ········ a "* 6 / 12 .......
    remote reference transmitter broadcast to extend the reference base 15.
    [26] In FIG. 2, the two measuring chords 16, 17 are arranged parallel to one another in a horizontal plane. They are clamped laterally displaceably on the two outer measuring devices 12, 13. For this purpose, for example, a respective clamping device 21 is connected to a motor 23 via a spindle 22. A lateral shift takes place in cornering in order to hold the measuring chords 16, 17 in the region of the middle measuring device 14 in the middle 24 of the track. The motors 23 are controlled as a function of the evaluation of the measuring chord position, which is detected by means of a measuring sensor 25 arranged on the middle measuring device 14.
    The sensor 25 is advantageously designed as a laser line scanner and detects the position of the measuring chords 16, 17 in a horizontal direction and in a vertical direction. Two coordinate axes z, y for determining rail measuring points 26 are thus defined in a three-dimensional coordinate system. The third coordinate axis x determines the position of the respective rail measuring point 26 in the longitudinal direction 6 of the machine. For this purpose, the known distances of the measuring devices 12, 13, 14 from one another are used and the data of a distance meter are evaluated.
    [28] An inclinometer 27 is arranged on each of the outer measuring devices 12, 13. When the track 5 is raised, the respective inclination of the associated measuring device 12, 13 is detected and included in the calculation of the track position. The inclination compensation of the outer measuring devices 12, 13 is advantageously carried out. Then the measuring chords 16, 17 always remain aligned in one plane, so that the inclination of the middle measuring device 14 can be derived directly from the position measurement of the two measuring chords 16, 17.
    [29] In the exemplary embodiment according to FIG. 2, the middle measuring device 14 is designed as a measuring carriage. A guidance along the respective rail edge is carried out by means of two flanged rollers 28, which are pressed against the inner surface of the rail to avoid play. The position of the rail measuring points 26 is recorded on the respective rail edge. During / 20th
    1627
    7/12 of a forward movement of the track-laying machine 1, the track position is determined on the basis of the changing rail measuring points 26. One of the flanged wheels 28 can also be used as a distance measuring wheel for distance measurement.
    [30] The two outer measuring devices 12, 13 are designed as contact platforms with respect to the rails 4. A position measuring sensor 29 is directed against each rail 4 in order to detect the position of the respective measuring platform relative to each rail 4. Laser line scanners are also advantageously used here.
    [31] The outer measuring devices 12, 13 are mounted either on the machine frame or on the front or rear rail chassis 2. The latter requires a modified clamping device 21 with a length compensation for the measuring chords 16, 17 during cornering. Alternatively, all measuring devices 12, 13, 14 can also be designed as measuring carriages.
    3, the measuring chords 16, 17 are arranged in a vertical plane. The front measuring device 12 attached to the front rail carriage 2 comprises the laser receiver 19, the inclinometer 27, two position measuring sensors 29 and the clamping device 21 for clamping the measuring chords 16, 17.
    [33] The rear measuring device 13 is arranged on the rear rail carriage 2. This is also made contactless with respect to the track 5 and is connected to the front measuring device 12 via the tensioned measuring chords 16, 17. The measuring device 14 arranged between them is guided on the track 5 by means of flanged wheels 28 and detects the position of the measuring chords 16, 17 by means of the sensor 25.
    [34] The arrow height in the circular arc can be determined in a simple manner if the front and rear measuring devices 12, 13 each comprise a lateral guide device (side tracking according to FIG. 4). For this purpose, the position of the measuring device 12 with respect to the inner rail 4 is first evaluated by means of the position measuring sensor 29 located inside the circular arc. The position measurement sensor 29, designed as a laser line scanner, is specific for the two-dimensional detection of the
    8/20
    1627
    8/12
    Rail surface formed. A distance 30 from the rail 4 is calculated therefrom by means of the evaluation device 18. The track width of the track 5 can also be detected together with the measurement data of the position measurement sensor 29 located on the outside in the circular arc.
    [35] The lateral position of the measuring chords 16, 17 relative to the central measuring device 14 remains unchanged due to the lateral tracking of the clamping device 21 on the front and / or on the rear measuring device 12, 13. For this purpose, the data from the sensor 25 are continuously evaluated and the motors 23 are controlled accordingly for the side tracking. From the displacements 31 of the clamping devices 21 and the detected distances 30 to the track 5, the arrow height of a circular arc can be determined in a known manner. In addition, the position of the measuring chords 16, 17 relative to the middle measuring device 14 is determined and evaluated.
    5 shows two measuring chords 16, 17 arranged one above the other in parallel, the position of which is detected by means of the sensor 25. A coordinate system x, y, z bound to the middle measuring device 14 serves as the reference system, the coordinate origin being above the track center 21. The longitudinal heights of the rails 4 are thus determined. In addition, in connection with the lateral tracking of the outer measuring devices 12, 13, the arrow height determination is made more precise.
    [37] On the basis of a twisting of the track 5, which is expressed in recorded z coordinates zi, Z2, the longitudinal heights of the rails 4 are determined in a simple manner. The rail spacing 30, the measuring chord spacing 32 and the z coordinates zi, Z2 of the measuring chords 16 are known.
    17. This results in a relative height 33 of a rail 4 compared to an average longitudinal height of the track 5 via the following geometric relationship:
    Height = rail spacing (zi-Z2) / chord spacing.
    [38] With the same geometric relationship, the known track gauge can also be used to easily determine the elevation of a rail 4. The mean longitudinal height of track 5 is with the y coordinates yi, / 20 • ·
    9.12
    1627 y2 of the measuring chords 16, 17 can be determined. Taking into account the side tracking of the outer measuring devices 12, 13, the arrow height can be determined using the z coordinates zi, Z2.
    [39] All the evaluations described are carried out by means of the evaluation device 18, which is designed as a computer and is set up to carry out the calculations. For this purpose, all required geometric sizes of the track-laying machine 1, such as the distances between the measuring devices 12, 13, 14, can be called up from a storage unit. The computer receives the measurement signals of the position measurement sensors 29, the inclinometer 27 and the measurement value transmitter 25 via a bus system.
    [40] With this data, the computer calculates in real time control signals for controlling the motors 23 for side tracking and, if necessary, for compensating for the inclination of the clamping devices 21. The current adjustment paths or adjustment angles of the clamping devices 21 are recorded and reported back to the computer. The described calculation of the track position is carried out with these data and the sensor data.
    10/20
    1627 • · · ··· ··· · ( ,! · 1 .........
    ·······> · · ** · · · · · · ··· · 4
    10/12
    权利要求:
    Claims (15)
    [1]
    1. Track construction machine (1) for carrying out track position corrections, with a machine frame (3) which can be moved on rails (4) of a track (5) by means of rail carriages (2) and a track position measuring system (11) which has two external measuring devices with respect to a machine longitudinal direction (6) (12, 13) and a middle measuring device (14) with a common reference base (15), the measuring devices (12, 13, 14) being determined in their position relative to the rails (4), characterized in that between the outer Measuring devices (12, 13) as a reference base (15), two mutually aligned measuring chords (16, 17) are tensioned so that the middle measuring device (14) comprises a measuring value transmitter (25) for detecting position data of the two measuring chords (16, 17) and that the position data are fed to an evaluation device (18) in order to determine a longitudinal height for each rail (4) and an arrow height.
    [2]
    2. Track construction machine (1) according to claim 1, characterized in that the two measuring chords (16, 17) are aligned parallel to one another in a neutral position of the outer measuring devices (12, 13).
    [3]
    3. Track construction machine (1) according to claim 1 or 2, characterized in that each outer measuring device (12, 13) comprises an inclinometer (27).
    [4]
    4 · ·· ·· 44 • 4 4 • • • • • 4 44 • • • • 444 • 44 • · · • • • • 4 4 • 4 4 ··· • •·· • 4 4 4• 4 ·2.2 4 444 • 4• ·· 4 ·
    4. Track construction machine (1) according to one of claims 1 to 3, characterized in that each outer measuring device (12, 13) comprises an inclination compensation device to position the two measuring chords (16, 17) with respect to a rotation axis running in the machine longitudinal direction (6) to keep.
    [5]
    5. Track construction machine (1) according to one of claims 1 to 4, characterized in that each outer measuring device (12, 13) comprises a lateral guide device around the measuring chords (16, 17) when cornering in the area of the middle measuring device (14) to hold in the middle of the track (24).
    [6]
    6. Track construction machine (1) according to one of claims 1 to 5, characterized in that the transmitter (25) is designed as an optical measuring sensor.
    [7]
    7. Track construction machine (1) according to one of claims 1 to 6, characterized in that each measuring device (12, 13, 14) is designed as a rail-guided measuring carriage.
    [8]
    8. Track construction machine (1) according to one of claims 1 to 6, characterized in that at least one measuring device (12, 13, 14) is designed as a measuring platform, which is arranged on a rail carriage (2) or on the machine frame (3) and two Position measuring sensors (29) each associated with a rail (4).
    [9]
    9. Track construction machine (1) according to one of claims 1 to 8, characterized in that the middle measuring device (14) on a machine frame (3) displaceable track lifting and straightening unit (10) is arranged.
    [10]
    10. Track construction machine (1) according to one of claims 1 to 9, characterized in that the two measuring chords (16, 17) are aligned with a laser beam (20) emitted or received by the track construction machine (1).
    [11]
    11. Track construction machine (1) according to one of claims 1 to 10, characterized in that the evaluation device (18) comprises a low-pass filter in order to filter detected vibrations of the respective measuring chord (16, 17).
    11/12
    11/20
    1627 · ♦ ·· ·· ·· · ·· • · · · · · ·· · * • ·· ······· ·· e • · ....... ..J ··· ····· · · ** ** · · · · · · · ··
    [12]
    12/12
    12/20
    1627 ·· ·· ···· • · · · ·· • · · ····· · · • · · · · · ·· • · · ·· ··· ·· ·· ····
    12. A method for operating a track-laying machine (1) according to one of claims 1 to 11, characterized in that the position of the measuring chords (16, 17) in the region of the middle measuring device (14) is detected by means of the sensor (25) and that by means of the longitudinal device for each rail (4) and the arrow height are calculated by the evaluation device (18).
    [13]
    13/20
    1627
    13. The method according to claim 12, characterized in that an inclination is detected for each outer measuring device (12, 13) and included in the calculation.
    [14]
    14/20
    1627
    14. The method according to claim 12 or 13, characterized in that a lateral displacement (31) is detected for each outer measuring device (12, 13) and included in the calculation.
    15. The method according to any one of claims 12 to 14, characterized in that vibrations of the respective measuring chord (16, 17) above a predetermined limit frequency are attenuated by means of the evaluation device (18).
    [15]
    15/20 Austrian
    Patent Office
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT321970B|1971-02-19|1975-04-25|Plasser Bahnbaumasch Franz|MOBILE TRACK LEVELING TAMPING MACHINE|
    AT382410B|1983-11-16|1987-02-25|Plasser Bahnbaumasch Franz|DEVICE FOR CORRECTING THE HIGH ALTITUDE AND CROSS-TILTING OF A TRACK|
    AT314579B|1969-01-22|1974-04-10|Plasser Bahnbaumasch Franz|Mobile device for recording and / or correcting the position of a track|
    GB9211901D0|1992-06-05|1992-07-15|British Railways Board|Methods of railway track maintenance|
    JP2556421B2|1992-07-22|1996-11-20|財団法人鉄道総合技術研究所|Track deviation measurement method and measuring device|
    AU672921B2|1993-11-05|1996-10-17|Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H.|A track maintenance machine for correcting the track geometry|
    DK1028325T3|1999-02-12|2010-01-04|Plasser Bahnbaumasch Franz|Procedure for measuring a track|
    AT4766U3|2001-06-21|2002-05-27|Plasser Bahnbaumasch Franz|TRACK CONSTRUCTION MACHINE AND METHOD FOR DETECTING A TRACK SITUATION|
    CN2703784Y|2003-10-14|2005-06-08|弗兰茨普拉塞铁路机械工业股份有限公司|Tamping vehicle|
    AT505029B1|2007-07-31|2008-10-15|Plasser Bahnbaumasch Franz|METHOD FOR MEASURING A TRAIL STATION|
    ES2646607T3|2014-06-27|2017-12-14|Hp3 Real Gmbh|Railroad measuring device|AT517345B1|2015-06-17|2017-01-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Track construction machine for the implementation of track position corrections|
    US10774478B2|2015-12-17|2020-09-15|Siemens Mobility Pty Ltd.|Railway track displacement measurement system and method for proactive maintenance|
    CN110453551B|2019-07-19|2021-08-13|胡军|Subway is built and is carried out skew calibration adjusting device with making things convenient for rail|
    FR3108342A1|2020-03-20|2021-09-24|Matisa Materiel Industriel|WORKS railway MACHINE comprising a machine frame and a work shuttle, and associated WORKS railway convoy|
    FR3108636A1|2020-03-26|2021-10-01|Colas Rail|Method for calculating a skidding or lifting of a railway track during a tamping-skidding-lifting by a tamper, a suitable tamper|
    法律状态:
    优先权:
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