• 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 mobile device (1) for correcting a vertical position (2) of a premounted track (3), in particular for a tamping machine, with a measuring system (4) comprising a traveling chord (14) as reference, and with a lifting device (3). 5) for lifting the track (3) to a means of the traveling chord (14) at a workstation (22) predetermined target height (8). Here, the traveling chord (14) at two reference points (27, 28) in its position relative to an uncorrected area (11) of the track (3) is determined, wherein the work site (22) in a working direction (29) behind the reference points (27 , 28) is arranged. In this way, the position of the moving tendon (14) is clearly and precisely defined at all times.
    公开号:AT520795A1
    申请号:T491/2017
    申请日:2017-12-21
    公开日:2019-07-15
    发明作者:
    申请人:Plasser & Theurer Export Von Bahnbaumaschinen Gmbh；
    IPC主号:
    专利说明:

    description
    Track construction machine and method for leveling a track
    TECHNICAL FIELD The invention relates to a mobile device for correcting a height of a premeasured track, in particular for a track tamping machine, with a measuring system which comprises a walking chord as a reference base and with a lifting device for lifting the track onto one by means of the walking chord a set target height for a job. The invention also relates to a corresponding method.
    PRIOR ART [02] Changes in the position of a track which inevitably occur as a result of loads on the rail traffic and as a result of weather influences must be corrected using recurring maintenance measures. As a rule, a generic device is used for this purpose to raise the track to a predetermined height. These lifting processes are usually accompanied by side-leveling and tamping the track. It is also customary to pre-measure the track in order to detect incorrect positions and to be able to carry out track lifting for absolute track position correction using the so-called precision method.
    For example, a track tamping machine is known from AT 382 410 B, in which a measuring chord (traveling chord) which moves with the machine is provided as a reference system above each rail of the track. The position of the respective measuring chord relative to the assigned rail is determined by a front and a rear measuring device. The front measuring device is guided in a not yet corrected area of the track and the rear measuring device in an already corrected area of the track. It is assumed that the track in the corrected area is at the specified level.
    / 19th
    1724 • ··· · · ·· · · ·
    2/12 [04] AT 515 208 B1 discloses a device in which a machine frame serves as a virtual walking chord. The measuring system is designed for contactless scanning of the respective rail and is connected to the machine frame so that it cannot be changed with respect to a vertical line. In addition, generic devices are known which have an optical walking chord, for example from US Pat. No. 3,107,168 A.
    [05] Different versions of the walking tendon measuring principle can be found, for example, in DE 10 2008 062 143 B3 or in DE 103 37 976 A1. Methods are disclosed in order to ascertain from the relative measurements carried out by means of a hiking chord, true-to-shape measurement signals of a vertical track position. In this way, the chord measurement principle can be used for true-to-shape pre-measurement of the track.
    Summary of the invention [06] The object of the invention is to provide an improvement over the prior art for a device and a method of the type mentioned at the outset.
    [07] According to the invention, this object is achieved by the independent claims 1 and 10. Advantageous further developments of the invention result from the dependent claims.
    [08] The position of the walking chord at two reference points is determined in relation to an uncorrected area of the track, the working point being arranged behind the reference points in one working direction. In this way, the position of the walking tendon is clearly and precisely defined at all times. Because of the preliminary measurement, the position of the track in the uncorrected area is known. There is no need to assume that the track has reached the specified altitude in an already corrected area. On the one hand, this increases the accuracy when lifting the track and, on the other hand, it enables an immediate correction in the event of incorrect lifting operations. In particular, the accuracy of the absolute track position (in relation to fixed points) increases. This means that the requirements for absolute track position quality described in standard EN 13231 can be implemented reliably after tamping.
    / 19th
    1724 • · · · · · · · · ··
    An advantageous embodiment of the mobile device provides that a control unit is set up to control the lifting unit and that the control unit is supplied with a measurement signal for comparing the height of the track at the work site with the walking chord. This provides a simple arrangement for controlling the lifting unit.
    [10] Furthermore, it is advantageous if a circuit device is set up for virtual lifting of the walking tendon and / or a level pickup. This eliminates the need for mechanical leveling devices to guide the hikers along a predetermined height of the track. Instead, the walking tendon is virtually raised at the work station in order to raise the track to the corresponding target height at this point.
    [11] The circuit device is advantageously connected to a storage device in which the uncorrected position of the track is stored. The mobile device is then equipped for automatic correction of the track, with data being synchronized by means of an ongoing position determination. Alternatively, a synchronous pre-measurement can be carried out by an upstream measuring device and a remote transmission of position measurement values.
    [12] In a simple embodiment of the invention, the traveling chord is designed as a leveling chord stretched between two measuring carriages. It makes sense to have a front measuring car at the front reference point and a rear measuring car at the work station for determining the track elevation. Then the specified target height is reached at the work station with a straight alignment of the walking tendon.
    Another variant provides that the walking chord is designed as an optical axis between two measuring devices that can be moved along the track. This facilitates the virtual lifting of the walking tendon at the reference points. In addition, there are no inaccuracies due to mechanical tolerances.
    [14] If the facility is improved, a post-measurement point for detecting the height of the track is arranged at this point in the working direction behind the work position. The measuring system comprises four digits for / 19
    1724 ·· · · ·· · · · ··
    4/12
    Track height detection, whereby the front reference points determine the position of the walking chord. The work station determines the lifting of the track and the lifting process is checked at the post-measuring point. The fourth measurement at the post-measurement point can be used to determine, in particular, gross inconsistencies due to incorrect sensors (redundancy). This further increases process reliability.
    [15] Each of the two rails of the track is advantageously assigned its own walking chord. An immediate correction of both rails of the track can thus be carried out. Elevations in curves are predetermined by the two differently raised hiking tendons. A separate consideration of cant values at the job is not necessary.
    [16] In addition, it is advantageous if an inclination measuring device is arranged at each of the reference points and at the work station, in order to be able to use additional measurement signals for raising the track in the region of curves and transition arches.
    The method according to the invention for correcting a track provides that the walking chord is moved in the working direction along the track and is raised virtually at the reference points or by means of leveling devices according to the corresponding desired heights and that the track is lifted at the work station is raised by a predetermined lift by means of the walking string.
    [18] In a further development of the method, measured values are transmitted to a circuit device at a post-measurement point, the setpoint heights being adjusted by means of the circuit device as a function of these measured values. In this way, the system automatically responds to changes in track parameters (e.g. ballast bed properties). Any remaining errors are mitigated by an immediate adjustment of the lifting specifications. The uplift is therefore specified by an interactive control.
    [19] It is advantageous if the measured values recorded at the post-measurement point are saved for the creation of a work protocol. On this / 19th
    1724 • · · · · · ·· · ··
    5/12
    Immediately after the track correction there is a documentation of the work success necessary for a route approval.
    BRIEF DESCRIPTION OF THE DRAWINGS [20] The invention is explained below by way of example with reference to the accompanying figures. In a schematic representation:
    Fig. 1 Mobile device according to the prior art
    Fig. 2 lifting diagram according to the prior art
    Fig. 3 lifting process according to the prior art
    Fig. 4 Mobile device with four measuring points
    Fig. 5 lifting process with leveling chord and re-measurement
    Fig. 6 lifting process with optical axis
    Fig. 7 lifting process with optical axis and final measurement
    Fig. 8 lifting process in transition arch
    Fig. 9 Geometric relationships
    DESCRIPTION OF THE EMBODIMENTS [21] The mobile device 1 of a track tamping machine shown in FIG. 1 is known from the prior art. It is used to correct a height 2 of a premeasured track 3 and comprises a measuring system 4, a lifting device 5 and a tamping unit 6. The uncorrected position 7 of the track 3 is known due to the pre-measurement. In addition, a desired target height 8 (target longitudinal height profile) is specified for each point on the track 3, so that a required increase is known for each of these points. So-called lifting correction values 9 are specifically specified.
    [22] The measuring system 4 uses a known three-point measurement (hiking tendon measuring principle), a front measuring carriage 10 being guided in an uncorrected area 11 of the track 3. A rear measuring carriage 12 is guided in an already corrected area 13. A hiking chord 14 is stretched between the two measuring carriages 10, 12, the respective height 2 of the track 3 being transferred to the hiking chord 14 by means of a linkage 15/19
    1724 • ······ · ··
    6/12 will. A middle measuring carriage 16 is used to compare the track elevation with the traveling chord 14.
    [23] In this known measuring system 3, the assumption is made that the corrected track position corresponds exactly to the desired height 8 desired at the respective point, as shown in FIG. 2. A rear tendon end point 17 should therefore always be at the correct level. Starting from an actual height 18, a front tendon end point 19 is raised by the lifting correction value 9 specified at this point. This is done by mechanical adjustment using a leveling device 20 or virtually by an equivalent change in an electrical reference signal.
    [24] In this way, a lifting 21 to be carried out at a work station 22 is specified by means of the traveling chord 14. Specifically, the track is raised at this point 22 by means of the lifting device 5 until a level pickup 23 on the middle measuring carriage 16 indicates that the level has been reached.
    [25] In FIG. 3 it can be seen that these assumptions made in the prior art lead to continuous errors. In practice, the corrected track position often deviates slightly from the respective target height. For example, in spite of the track 3 being tucked under, a sinking can take place due to the loading of a rail running gear 24, as shown in FIG. 3.
    [26] A track 25 that is present after a lifting process is shown with a continuous line. The track course 26 before the lifting process is illustrated with a dashed line. A dotted line shows the pre-measured, uncorrected position 7 of the track 3. Although the correct elevation correction value 9 is raised at the front end point 19 of the chord, the chord 14 does not run according to the predetermined target heights 8. As a result, the chord 14 gives a too low level Elevation 21, whereby this error continues until an operator adjusts the lifting correction values 9 or until a specific error subsides in the course of the machine approach.
    / 19th
    1724 • ··· · · ·· · · ·
    7/12 [27] This disadvantage is avoided with a mobile device 1 according to the invention, as shown by way of example in FIG. 4. A walking chord 14 is determined at two reference points 27, 28 in its position relative to the uncorrected area 11 of the track 3. A work station 22 is arranged in a working direction 29 behind these reference points 27, 28. A measuring point 30 is optionally provided in the rear area of the device 1 in order to check the altitude 2 in the corrected area 13.
    [28] In the embodiment shown, the walking chord 14 is stretched between a front measuring carriage 10 at the first reference point 27 and a rear measuring carriage 12 at the working point 22. The front tendon end point 19 is raised by the corresponding lifting correction value 9. This takes place either mechanically by means of a leveling device 20 or advantageously electronically by means of a signal adaptation by means of a switching device 31. The switching device 31 is connected to a storage device 32, in which location or path-related data of the uncorrected position 7 of the track 3 or lifting correction values 9 are saved. The path 35 covered by the device 1 with respect to a fixed point is recorded by a distance measuring device 33. This assigns the stored data to the current reference points 27, 28 and to the current work station 22 and, if appropriate, to the final measurement point 30.
    [29] At the second reference point 28, the level of the walking chord 14 is compared with the target height 8 at this point 28. This target height 8 results from the known actual height 18 and the corresponding lifting correction value 9 at this point 28. The adjustment is carried out, for example, by means of a level pickup 23, which is adjusted to the target height by means of a leveling device 20. As an alternative to mechanical leveling, electronic adaptation by means of the circuit device 31 is also advantageously provided here.
    [30] As soon as it is registered at the second reference point 28 that the chord 14 has reached the corresponding desired height 8, a control unit 34 ends the lifting process. For this purpose, the control unit 34 provided for actuating the lifting device 5 is a signal from / 19
    1724 ♦ ······· · ··
    8/12
    Level pickup 23 supplied. In order to increase the accuracy, the height can be adjusted by means of the re-measurement.
    [31] For this purpose, the chord 14 is extended to the measuring point 30. For a measuring process, for example, the traveling chord 14 is briefly detached at the working point 22, so that the reference points 27, 28 and the secondary measuring point 30 are used for a three-point measurement. As an alternative to this, a further chord 14 can be tensioned to measure the corrected track position.
    FIGS. 5 to 8 show exemplary longitudinal height profiles of a rail 36 of track 3 with an associated traveling chord 14. A simple and robust solution provides that a physical leveling chord (eg steel chord) is stretched between measuring carriages 10, 12 as traveling chord 14 ( Fig. 5). Higher accuracies are achieved with an optical axis between two measuring devices that can be moved along the track (Fig. 7-8). Such a solution is disclosed, for example, in the applicant's Austrian patent application A 325/2016. 7-8, the chord 14, which is designed as an optical axis, is shown in dash-dot lines.
    [33] On a straight track section, the reference points 27, 28 are raised to the same target height 8 (FIGS. 5-7). As a result, the track 3 at the work station 22 is inevitably also raised to this desired height 8. A re-measurement is optionally carried out by a three-point measurement, including the re-measuring point 30 (FIGS. 5 and 7).
    [34] Fig. 8 shows a situation with changes of inclination and fillets. These occur when there is an increase and changes in incline. Here the walking chord 14 is guided only at the first reference point 27 along the course of the desired height 8. At the second reference point 28 there is an increase by the lifting correction value 9 plus an arrow height 37, which at this point 28 results from the predetermined curvature of the desired longitudinal height profile. The corresponding value can be determined in a simple manner from the predetermined course of the desired height 8 and the length of the walking chord. The circuit device 31 is advantageously provided for carrying out a corresponding calculation.
    / 19th
    1724 ·· ·· ·· ·· · ··
    9/12 [35] There is usually an increase in a curve. In this case, a target height 8 increased by an elevation value is specified for the rail 36 of the track 3 on the outside of the curve. This applies in a corresponding manner to the respective lifting correction value 9. For such a differentiated lifting 21 of the track 3, for example, each rail 36 is assigned its own traveling chord 14.
    As an alternative or in addition, inclination measuring devices 38 (pendulums) are provided at the reference points 27, 28 and the work station 22. Then the specification of the desired height 8 is sufficient for the rail 36 on the inside of the curve. The rail 36 on the outside of the curve is additionally raised by the corresponding cant value by means of a predetermined angle of inclination. A single chord 14 can be arranged in the middle of the track and the height positions for the rails 36 result from the inclination angle.
    [37] FIG. 9 shows the geometric relationships for the formulas given below. The machine moves in the working direction 29 along the track 3, which is measured at four points 22, 27, 28, 30 in relation to the traveling chord 14. Two front measuring axes are still moving on the track 3 in the original, uncorrected area 11. Corresponding height values are high by the pre-measurement, hi is known for the actual height 18. A corresponding stitch height zo, zi results at the respective point 27, 28 between the hiking path 14 and the track 3. In addition, values ho son, hi sou for the respective target height 8 or lifting correction values 9 are specified as the respective height delta Aho, Ahi:
    h-soll h-ist [38] At the work station 22, that is to say at the position of the track plug, the height of the track 3 is measured in the raised state by means of a further measuring axis. Specifically, a stitch height z 2 is detected between the hiking vision 14 and the track 3 in order to determine a height value h 2 at this point 22. A measurement of the stitch height Z3 between the traveling vision 14 and the track 3 in the stuffed, corrected area 13 is carried out at the post-measuring point 30 by means of a rear measuring axis
    1724 ·· ·· ·· ·· · ··
    10/12 [39] a height value h 3 at this point 30 corresponds to a predetermined value. This means that the track lifting can be continuously checked and regulated through the re-measurement.
    The following measuring axes (second reference point 28, working point 22, final measuring point 30) in the track direction are each a distance Xi, X2 and X3 away from the foremost measuring axis (first reference point 27). In principle, a difference between an oblique length and a horizontal projection can be corrected, but negligible for the longitudinal inclinations encountered in railway construction. The associated stitch heights z 0 , zi, Z2, and z 3 with respect to a hiking chord 14 with any position are measured continuously or are known in some cases anyway, depending on the measurement method (tensioned chord, optical chord). The heights h 2 , h 3 at the work station 22 and after the post-measurement point 30 can be derived using the geometric relationships shown:
    权利要求:
    Claims (12)
    [1]
    Claims
    1. Mobile device (1) for correcting a height (2) of a pre-measured track (3), in particular for a track tamping machine, with a measuring system (4), which comprises a walking chord (14) as a reference, and with a lifting device (5) for raising the track (3) to a desired height (8) predetermined by means of the hiking chord (14) at a work station (22), characterized in that the position of the hiking chord (14) at two reference points (27, 28) an uncorrected area (11) of the track (3) is determined and that the work station (22) is arranged in a working direction (29) behind the reference points (27, 28).
    [2]
    2. Device (1) according to claim 1, characterized in that a control unit (34) for controlling the lifting unit (5) is set up and that the control unit (34) to a measurement signal to adjust the height (2) of the track (3) the work station (22) with the walking chord (14) is supplied.
    [3]
    3. Device (1) according to claim 1 or 2, characterized in that a circuit device (31) for virtual lifting of the walking tendon (14) and / or a leveling device (23) is set up
    [4]
    4. Device (1) according to claim 3, characterized in that the circuit device (31) is connected to a memory device (32) in which the uncorrected position (7) of the track (3) is stored.
    [5]
    5. Device (1) according to one of claims 1 to 4, characterized in that the traveling chord (14) is designed as a leveling chord stretched between two measuring carriages (10, 12).
    [6]
    6. Device (1) according to one of claims 1 to 4, characterized in that the traveling chord (14) is designed as an optical axis between two measuring devices movable along the track (3).
    12/19
    1724 ♦ ··· ·· · ♦ · ··
    12/12
    [7]
    7. Device (1) according to one of claims 1 to 6, characterized in that in the working direction (29) behind the work station (22) a post-measurement point (30) for detecting the height (2) of the track (3) at this point ( 30) is arranged.
    [8]
    8. Device (1) according to one of claims 1 to 7, characterized in that each of the two rails (36) of the track (3) is assigned its own walking chord (14).
    [9]
    9. Device (1) according to one of claims 1 to 8, characterized in that in each case an inclination measuring device (38) is arranged at the reference points (27, 28) and at the work station (20).
    [10]
    10. A method for correcting a track (3) with a mobile device (1) according to one of claims 1 to 9, characterized in that the traveling chord (14) is moved in the working direction (29) along the track (3) and thereby the reference points (27, 28) are raised virtually or by means of leveling devices (20) in accordance with the corresponding desired heights (8) and that the track (3) by means of the lifting unit (5) at the work station (22) by one by means of the walking chord ( 14) predetermined lifting (21) is raised.
    [11]
    11. The method according to claim 10, characterized in that measured values from a circuit device (31) are transmitted to a post-measurement point (30) and that the set heights (8) are adjusted by means of the circuit device (31) as a function of these measured values.
    [12]
    12. The method according to claim 11, characterized in that the measured values recorded at the post-measurement point (30) are stored for the creation of a work protocol.
    类似技术:
    公开号 | 公开日 | 专利标题
    AT520795B1|2020-03-15|Track construction machine and method for leveling a track
    EP3209832B1|2018-06-27|Method for measuring and displaying the track geometry of a track system
    DE3137194C2|1993-07-01|
    AT402519B|1997-06-25|CONTINUOUSLY RIDABLE RAILWAY MACHINE FOR COMPRESSING THE GRAVEL BED OF A TRACK
    DE3409851A1|1985-05-30|DEVICE FOR THE HIGH ALTITUDE AND TILT CORRECTION OF A TRACK
    AT516248B1|2016-04-15|Method for calibrating a device for measuring tracks
    DE4222333A1|1993-01-14|METHOD FOR DETERMINING THE DEVIATIONS OF THE ACTUAL LOCATION OF A TRACK SECTION
    EP3535456B1|2020-12-09|Track-laying machine with track-layout-measuring system
    AT515208B1|2015-07-15|Track-laying machine for performing track position corrections and procedures
    RU2169810C1|2001-06-27|Rail track position adjustment method
    EP0652325B1|1999-05-19|Railroad maintenance machine for correcting the position of the track
    AT518579A1|2017-11-15|Method and measuring system for detecting a fixed point next to a track
    DE3007949C2|1983-11-10|Mobile machine for monitoring and, if necessary, correcting the height and slope of a track
    DE4038860A1|1992-06-04|Control system for track and road construction machine - has laser measurement of height and position to generate curved path
    EP3802956A1|2021-04-14|Method and machine for tamping a track in the region of a switch
    EP3481999B1|2020-12-02|System and method for measuring a track
    AT523627B1|2021-10-15|Method and system for determining a target track course for a position correction
    DE4219256C2|2001-04-05|Method and machine for setting a track lying on a base layer to a desired position
    DE2424916C3|1978-08-31|Optical system
    DE2434073C2|1982-03-18|Method for straightening and / or longitudinally leveling railway tracks by means of a rail-traveling junction-straightening leveling machine and device for carrying out the method
    WO2021203149A1|2021-10-14|Method for calibrating a machine-integrated measuring system
    WO2021253062A1|2021-12-23|Method for gauging a track position
    DE1759105B2|1977-06-02|PROCEDURE FOR SETTING THE ZERO VALUE OF THE MEASURING DEVICE OF A TRACK CORRECTION DEVICE
    同族专利:
    公开号 | 公开日
    CN111527264A|2020-08-11|
    AT520795B1|2020-03-15|
    EP3728738A1|2020-10-28|
    WO2019120814A1|2019-06-27|
    US20200354899A1|2020-11-12|
    EA202000145A1|2020-09-11|
    JP2021507150A|2021-02-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2738751A1|1977-01-17|1978-07-20|Plasser Bahnbaumasch Franz|MOBILE TRACK LEVELING PLUG AND STRAIGHT MACHINE ARRANGEMENT|
    DE4102872A1|1990-02-06|1991-08-08|Plasser Bahnbaumasch Franz|CONTINUOUSLY RIDABLE TRACKING MACHINE FOR COMPRESSING THE GRAVEL BED|
    US3107168A|1959-03-19|1963-10-15|Donald J Hogan|Track maintenance apparatus|
    AT382410B|1983-11-16|1987-02-25|Plasser Bahnbaumasch Franz|DEVICE FOR CORRECTING THE HIGH ALTITUDE AND CROSS-TILTING OF A TRACK|
    AT391904B|1988-09-15|1990-12-27|Plasser Bahnbaumasch Franz|TRACK CONSTRUCTION MACHINE WITH TRACK STABILIZER|
    AU672921B2|1993-11-05|1996-10-17|Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H.|A track maintenance machine for correcting the track geometry|
    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|
    AT515208B1|2014-02-20|2015-07-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Track-laying machine for performing track position corrections and procedures|AT519317B1|2016-11-04|2018-12-15|Plasser & Theurer Exp Von Bahnbaumaschinen G M B H|Method and track construction machine for correction of track position errors|
    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|
    CN112064431A|2020-09-11|2020-12-11|李卫|Tamping tool for track traffic|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA491/2017A|AT520795B1|2017-12-21|2017-12-21|Track construction machine and method for leveling a track|ATA491/2017A| AT520795B1|2017-12-21|2017-12-21|Track construction machine and method for leveling a track|
    PCT/EP2018/081745| WO2019120814A1|2017-12-21|2018-11-19|Track construction machine and method for leveling a track|
    EP18811166.0A| EP3728738A1|2017-12-21|2018-11-19|Track construction machine and method for leveling a track|
    CN201880081233.5A| CN111527264A|2017-12-21|2018-11-19|Track maintenance machine and method for leveling a track|
    JP2020534395A| JP2021507150A|2017-12-21|2018-11-19|Track construction machine and how to adjust track height|
    US16/767,248| US20200354899A1|2017-12-21|2018-11-19|Track maintenance machine and method for levelling a track|
    EA202000145A| EA202000145A1|2017-12-21|2018-11-19|TRACKING MACHINE AND METHOD FOR LEVELING THE RAILWAY|
    [返回顶部]