• 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 method for renewing sleepers (3) of a track (4), rails (13) being lifted off the sleepers (3) and the sleepers (3) exchanged after loosening rail fastening means (2). It is provided that the release of the rail fastening means takes place in such a way that by means of a spreading device (1) each on both sides of a rail (13) arranged rail fastening means (2) are pressed so far apart until a clear distance between the rail fastening means (2 ) is greater than a rail foot width. In addition, the invention relates to a device for carrying out the method.
    公开号:AT520387A1
    申请号:T341/2017
    申请日:2017-08-25
    公开日:2019-03-15
    发明作者:
    申请人:Plasser & Theurer Export Von Bahnbaumaschinen Gmbh；
    IPC主号:
    专利说明:

    Summary
    Method and device for renewing sleepers of a track
    The invention relates to a method for renewing sleepers (3) of a track (4), rails (13) being lifted off the sleepers (3) after the rail fastening means (2) has been released, and the sleepers (3) being replaced. It is provided that the rail fastening means are released in such a way that the rail fastening means (2), which are arranged on both sides next to a rail (13), are pressed apart so far by means of a spreading device (1) that there is a clear distance between the rail fastening means (2 ) is larger than a rail foot width. In addition, the invention relates to a device for performing the method.
    Fig. 1/19
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    1/11
    description
    Method and device for renewing sleepers of a track
    TECHNICAL FIELD The invention relates to a method for renewing sleepers of a track, wherein rails are lifted off the sleepers after the rail fastener has been released and the sleepers are replaced. In addition, the invention relates to a device for performing the method.
    PRIOR ART [02] Methods for renewing thresholds have long been known. Often after the removal of old sleepers and before the installation of new sleepers, ballast is picked up, fed through a sieve and put back into the track bed. In optional work steps, old rails can also be replaced by upstream new rails.
    A track renewal train for carrying out such a method is known from AT 316 614 B. This prior art has the disadvantage that rail fastening means must first be released from the old sleepers before they can be removed. This extends the necessary track closure times and increases the cost of retrofitting.
    [04] AT 15 070 U1 discloses a method for renewing sleepers of a track, a high-pressure water jet being used to make a separating cut on the rail fastening means in order to detach it from an old sleeper. With this method, however, large amounts of water are required, which must be made available in a separate water tank or arranged on the track renewal train. In addition, a high-pressure water jet can only cut in a very slow machine approach. Another disadvantage is the introduction of loose / 19
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    2/11
    Rail fasteners in the ballast bed. These must be subsequently removed from the ballast using a metal separator.
    Summary of the invention [05] The object of the invention is to provide an improvement over the prior art for a method and a device of the type mentioned at the outset.
    [06] According to the invention, this object is achieved by a method according to claim 1 and a device according to claim 7. Dependent claims indicate advantageous embodiments of the invention.
    The method according to the invention provides that the rail fastening means are released in such a way that by means of a spreading device the rail fastening means arranged on both sides next to a rail are pressed apart until a clear distance between the rail fastening means is greater than a rail foot width. As a result, the rail fastening means can be released automatically in the assembly line process during a threshold renewal. A previous manual loosening of the rail fastening means is therefore unnecessary. This saves time and personnel costs.
    In a further development of the method it is provided that the spreading device arranged on a rail vehicle is moved relative to a vehicle frame by means of a positioning device in order to position the spreading device in relation to the rail fastening means to be pressed apart. This ensures efficient use of the spreading device by rapid positioning relative to each rail fastening means to be released.
    [09] Furthermore, it makes sense if the spreading device is held in position relative to the rail fastening means to be pressed apart while the rail vehicle continues to move on the track. This enables continuous advancement of a rail vehicle designed as a track renewal train.
    / 19th
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    An advantageous embodiment of the method provides that the position of the rail fastening means is detected by means of a sensor and a sensor signal is transmitted to a control device, and that a spreading process is activated as a function of the sensor signal by means of the control device. The use of the sensor and the control device enables machine detection of the rail fastening means and automated positioning of the spreading device relative to the rail fastening means to be released.
    In a further improvement of the method, a spreading device is guided along the associated rail for each of the two rails of the track. In this way, the release of the rail fastening means can be carried out particularly efficiently in the assembly line process. It makes sense if both spreading devices are operated synchronously.
    [12] The device according to the invention for performing one of the methods mentioned comprises a spreading device on which two coupled spreading tools are arranged. Each spreading tool is designed to be applied to at least one rail fastening means. In this way, a simple construction of the expanding device is provided, the respective expanding tool advantageously comprising exchangeable wear parts. The respective spreading tool can extend over a plurality of sleepers in the longitudinal direction of the rail, so that it can be applied simultaneously to a plurality of rail fastening means. Then the corresponding rail fastening means can be released with a spreading process.
    In an advantageous embodiment of the device it is provided that the spreading device comprises two opposite pivot arms which can be rotated about a common pivot axis and that a spreading tool is arranged at a lower end of the respective arm. This kinematic arrangement enables a compact design and an effective power transmission to the rail fastening means.
    A hydraulic drive is preferably arranged between the swivel arms. The hydraulic drive offers a simple solution for a uniform and high power development during a spreading process.
    / 19th
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    4.11
    In addition, the hydraulic drive can be integrated into an existing hydraulic system of a rail vehicle.
    [15] Advantageously, guide means are arranged on the device in order to guide the spreading device along one of the two rails of the track. This facilitates positioning relative to the rail fasteners to be pressed apart.
    [16] Furthermore, it is advantageous if clamping means are arranged on the device, by means of which the spreading device can be clamped to one of the two rails of the track during a spreading process. As a result, the spreading device is securely fixed in its position and the rail fastening means are spread or pushed apart on both sides.
    [17] In an alternative embodiment of the device it is provided that the respective spreading tool is designed as a spreading wedge which can be moved in a longitudinal direction of the rail between the respective rail fastening means and the associated rail. This wedge-shaped design represents a simple structural variant in order to press the rail fastening means off a rail foot.
    [18] The device advantageously comprises a positioning device, by means of which the spreading device can be positioned relative to a vehicle frame of a rail vehicle. In use, the positioning device is attached, for example, to a track renewal train in order to move the spreading device step by step from threshold to threshold using the assembly line method.
    [19] An efficiency-enhancing development provides that the spreading device comprises several pairs of coupled spreading tools. In this way, several rail fasteners can be released simultaneously. The pairs of coupled spreading tools can be arranged side by side as well as one behind the other in order to increase the efficiency of the spreading device.
    To further simplify the device, it is advantageous if the pairs of coupled spreading tools are assigned a common drive.
    / 19th
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    5/11
    BRIEF DESCRIPTION OF THE DRAWINGS [21] The invention is explained below by way of example with reference to the accompanying figures. In a schematic representation:
    Fig. 1 device positioned relative to rail fastening means
    Fig. 2 spreading device after the spreading process
    Fig. 3 side view of the expansion device
    Fig. 4 spreading device with wedge-shaped spreading tools
    Fig. 5 rail vehicle
    Description of the embodiments [22] A device shown in FIG. 1 comprises a spreading device 1 for pushing apart rail fastening means 2, which are fastened to sleepers 3 of a track 4. The spreading device 1 is connected to a vehicle frame 6 via a positioning device 5. In the variant shown, the spreading device 1 has pivot arms 8 which can be rotated about a common pivot axis 7, at the lower end 9 of which a spreading tool 10 is arranged in each case.
    [23] The respective spreading tool 10 is advantageously designed as a wearing part and can be replaced, for example, via screw connections. In addition, the spreading tools 10 can be exchanged in order to adapt them to different rail fastening means 2. For example, different shapes of the spreading tools 10 are provided for screw fastenings than for clamp fastenings. Optionally, guide means 11 are provided to guide the spreading device 1 along the associated rail 13.
    At an upper end, a hydraulic drive 12 is arranged between the swivel arms 8, which presses the two swivel arms 8 apart. Alternatively, an electric drive with a spindle or an eccentric can be arranged. In order to reach the starting position (FIG. 1), the spreading device 1 is centered by means of the positioning device 5 over a rail 13. The spreading tools 10/19
    1717 ·· ·· · ··· ·· ·
    6/11 positioned on both sides between the rail 13 and a rail fastening means 2.
    [25] In addition, a sensor 14 for detecting the rail fastening means 2 is arranged. This forwards a sensor signal to a control device 15. Depending on the sensor signal, the control device 15 activates a spreading process. First, the positioning device 5 for automatically positioning the spreading device 1 is activated. The hydraulic drive 12 of the spreading device 1 is then activated.
    [26] FIG. 2 shows the spreading device 1 immediately after a spreading process has ended. The swivel arms 8 and the spreading tools 10 are pressed apart by means of the hydraulic drive 12. The rail fastening means 2 which are plastically deformed in this way are at a clear distance from one another which is greater than the width of a rail foot 16 of the corresponding rail 13. As a result, the rail 13 can be raised in the next method step and placed next to the sleepers 3.
    3 shows the spreading device 1 in a side view. Clamping means 18 are arranged on both sides in a longitudinal direction 17 of the rail next to the spreading device. These hold the spreading device 1 securely in position relative to the rails 13 so that the rail fastening means 2 can be pressed apart in a centered manner. The clamping means 18 are designed, for example, in the form of pliers and driven hydraulically or electrically. A control takes place via the control device 15 as soon as the spreading device 1 is in the starting position.
    4 shows an alternative variant of the spreading device 1. Here, the spreading tools 10 are designed as spreading wedges. To push the rail fastening means 2 apart, the expansion wedges are pushed in the longitudinal direction 17 of the rail between the corresponding rail fastening means 2 and the rail 13. This is simply done by a machine approach 19 of a rail vehicle 20 to which the spreading device 1 is attached.
    / 19th
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    7/11 [29] FIG. 5 shows a rail vehicle 20 with a mounted device. The positioning device 5 is attached to the vehicle frame 6. In order to enable continuous machine advancement 19, the positioning device 5 comprises in particular a longitudinal guide 21, along which the spreading device 1 executes a relative movement 22 with respect to the vehicle frame 6. In this way, the expansion device 1 remains in position relative to the rail fastening means 2 to be pressed apart until the expansion process has ended. This is followed by a rapid forward movement to the next threshold 3. The spreading device 1 thus operates in a clocked operating mode while the rail vehicle 20 continuously moves forward.
    [30] The spreading device 1 is connected to a hydraulic system 24 of the rail vehicle 20 via a flexible supply line 23. Alternatively, an existing electrical system can be used if the spreading device 1 has an electric drive.
    In this example, the sensor 14 is arranged in the front area of the rail vehicle 20. In addition, a displacement sensor 25 is provided. Both sensor signals are fed to the control device 15 in order to determine the positions of the spreading device 1 to be controlled. The necessary geometric relationships between the sensors 14, 25 and the positioning device 5 or the spreading device 1 are stored in the control device 15.
    [32] In a simple method with slow machine access 19, the spreading device 1 can be moved back and forth between the two rails 13 of the track 4 in order to release all the rail fastening means 2 with a pair of coupled spreading tools 10.
    [33] For faster operation, it makes sense if each rail 13 is assigned a separate spreading device 1. Alternatively, a common spreading device 1 with two pairs of coupled spreading tools 10 can be provided. A plurality of spreading devices 1 arranged one behind the other also increases the number of released rail fastening means 2 per unit of time. The same applies to several / 19
    1717 ·· ·· · ··· ·· ·
    8/11 arranged one behind the other spreading tools 10
    Spreading device 1.
    / 19th
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    9.11
    权利要求:
    Claims (15)
    [1]
    claims
    1. A method for renewing sleepers (3) of a track (4), rails (13) being lifted from the sleepers (3) after the rail fastener (2) has been released and the sleepers (3) being replaced, characterized in that The rail fastening means are loosened in such a way that the rail fastening means (2), which are arranged on both sides next to a rail (13), are pressed apart so far by means of a spreading device (1) that a clear distance between the rail fastening means (2) is greater than a rail foot width ,
    [2]
    2. The method according to claim 1, characterized in that the spreading device (1) arranged on a rail vehicle (20) is moved by means of a positioning device (5) relative to a vehicle frame (6) in order to spread the spreading device (1) relative to the rail fastening means to be pressed apart (2) position.
    [3]
    3. The method according to claim 2, characterized in that the spreading device (1) is held in position relative to the rail fastening means (2) to be pressed apart while the rail vehicle (20) continues to move on the track (4).
    [4]
    4. The method according to any one of claims 1 to 3, characterized in that the position of the rail fastening means (2) is detected by means of a sensor (14) and a sensor signal is transmitted to a control device (15) and that an expansion process () is carried out by means of the control device (15). 1) is activated depending on the sensor signal (14).
    [5]
    5. The method according to any one of claims 1 to 4, characterized in that for each of the two rails (13) of the track (4), a spreading device (1) is guided along the associated rail (13).
    10/19
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    10/11
    [6]
    6. The method according to claim 5, characterized in that the two spreading devices (1) are operated synchronously.
    [7]
    7. Device for carrying out a method according to one of claims 1 to 6, characterized in that the device comprises a spreading device (1) and that two coupled spreading tools (10) are arranged on the spreading device (1), each for application at least one rail fastening means (2) are formed.
    [8]
    8. The device according to claim 7, characterized in that the spreading device (1) comprises two opposite pivot arms (8) rotatable about a common pivot axis (7) and that at a lower end (9) of the respective leg arm (8) a spreading tool ( 10) is arranged.
    [9]
    9. The device according to claim 8, characterized in that a hydraulic drive (12) is arranged between the pivot arms (8).
    [10]
    10. Device according to one of claims 7 to 9, characterized in that guide means (11) are arranged on the device to guide the spreading device along one of the two rails (13) of the track (4).
    [11]
    11. Device according to one of claims 7 to 10, characterized in that on the device clamping means (18) are arranged, by means of which the spreading device (1) during a spreading process on one of the two rails (13) of the track (4) can be clamped ,
    [12]
    12. The device according to claim 7, characterized in that the respective spreading tool (10) is designed as a spreading wedge, which is movable between the respective rail fastening means (2) and the associated rail (13) in a rail longitudinal direction (17).
    [13]
    13. Device according to one of claims 7 to 12, characterized in that the device comprises a positioning device (5) by means of which the
    11/19
    1717 ·· ·· · ··· ·· ·
    11/11
    Spreading device (1) can be positioned relative to a vehicle frame (6) of a rail vehicle (20).
    [14]
    14. Device according to one of claims 7 to 13, characterized in that the spreading device (1) comprises a plurality of pairs of coupled spreading tools (10).
    [15]
    15. The apparatus according to claim 14, characterized in that the pairs of coupled spreading tools (10) is assigned a common drive.
    12/19

    co

    13/19

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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1999024669A1|1997-11-06|1999-05-20|A. Rosenquist Förvaltnings Ab|An arrangement for bringing a clamping element from a fastening position to a released position|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA341/2017A|AT520387B1|2017-08-25|2017-08-25|Method and device for renewing sleepers of a track|ATA341/2017A| AT520387B1|2017-08-25|2017-08-25|Method and device for renewing sleepers of a track|
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