• 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:
    Replacement of a length of contact wire or a line breaker while maintaining the tensile stress prevailing in the contact line of the existing railway overhead contact line with temporary application of a tension-resistant and bending-rigid tensioning strip that is temporarily tensile-fixed to sections of contact wire in front of and behind the length to be replaced contact wire or circuit breaker and thus coincide with and form a bypass outside the length of contact wire or line breaker for passing through the tensile stress between the pieces of contact wire during the replacement, which clamping strip is removed again at the end of the replacement, after which the galvanic current is returned to the overhead line put.
    公开号:NL2016240A
    申请号:NL2016240
    申请日:2016-02-08
    公开日:2016-10-10
    发明作者:Zeelenberg Lex
    申请人:Volkerrail Nederland Bv；
    IPC主号:
    专利说明:

    Sled for replacement of a line circuit breaker.
    This invention relates to the maintenance of a railway overhead line for the electrical supply of a train for the transport of people and goods. Pipe interrupters are mainly used at stations and yards to be able to selectively electrify adjacent sections of track in order to minimize disruption to train traffic in the event of a necessary power failure for maintenance.
    Prior art forms e.g. NL2004858C. KR20130063735A is aimed at quickly repairing a catenary wire with permanent assembly of an elongated repair strip. US4187934 shows a pipe breaker.
    In the known way of replacing a line circuit breaker, a temporary tension chain bridging the line line breaker to be replaced is attached to the overhead line wires (hereinafter: contact wire) to keep the contact wires at tension during the replacement work. At the places where the tensioning chain engages on the contact wires, however, only cumbersome kinks arise in the contact wires which, due to the time pressure under which they are being worked, are usually not or not completely resolved, which affects the functionality and service life of the contact wires.
    In order to avoid this drawback, the invention proposes replacing the tensioning chain with an elongated and dimensionally stable, in particular tensile and kinking and bending-rigid tensioning strip which is temporarily attached to the contact wires. In practice it has been found that when the tensioning strip is used the contact wires remain kink-free. Moreover, it has been found that replacing a pipe interruption saves considerable time compared to the use of the tension chain.
    The invention could also be applicable to renewing a longitudinal contact wire of an existing overhead line. The tensioning strip then preferably has a length of at least 3 meters, while a length of the tensioning strip between 1 and 2 meters is sufficient for replacing a line circuit breaker, such as the Ribe LO, which is often used on the Dutch 1500 kV rail network. The tensioning strip is therefore preferably at least 1 or 2 and possibly at most 2 or 3 or 4 meters long.
    To be able to transport easily in a vehicle, the length cannot be unlimited and the tensioning strip is preferably foldable or removable in two or more lengths. The tensioning strip can be articulated, preferably with pivoting means and locking means for securing the tensioning strip releasably in one, two or more pivoting positions, for example in two pivoting positions that are different from each other by approximately 180 degrees. The locking means preferably comprise selectively deployable locking holes, preferably with an equal distance on either side of the pivot axis. In a preferred embodiment, the securing means, such as securing holes, and the pivot axis are all located on the same side of the associated dividing seam between two sections of the tensioning strip, based on the length of the tensioning strip.
    The tensioning strip preferably comprises one or more of the following: a clamping means near both ends for temporarily fixing the associated ends of the contact wires in which tensile stress prevails on the tensioning strip; metal, for example steel or aluminum; thickness between 1 mm and 10 or 20 mm, for example approximately 5 mm; width approximately 10 cm or between 5 and 20 cm; unprofiled; as a flat plate; the side facing the contact wire is substantially smooth or smooth to an extent that does not conflict with an existing line circuit breaker; pivoting and securing means on the side opposite the side facing the contact wires; the clamping means is arranged so that the contact wire is enclosed between a side of the clamping strip and a side of a clamping plate facing the tensioning strip and clamping clamping means of the clamping means; the clamping means includes surface relief engaging the contact wire, such as corrugation, for improving friction-free fixation; a pivot flange fixed on one side with three holes with equal spacing, the pivot axis of which folds in the tensioning strip protrudes into the middle hole; on the longitudinal part of the tensioning strip pivoting relative to the pivoting flange, a flange is fixed which extends longitudinally beyond this longitudinal part and this continuous flange part carries the pivot axis for collapsing the tensioning strip; near the two ends a suspension means, such as an eye, for temporarily hanging on the overhead cable carrier; equipped with lighting holes to reduce its weight.
    For the invention, one or more of the following applies: the contact wire is suspended from a carrier cable; double contact wire; weights or other biasing means at the start and end of a overhead line section to maintain the carrier cable at the set tensile stress; the contact wire hangs from the carrying cable via vertical hanging wires; the carrier cable hangs in an arc between the portals; the carrier cable and / or the contact wire is fixed or movable; on the carrier cable and / or the contact wire mounted in the overhead line, tensioning means belonging to the overhead line, such as a weight, exert a tension of at least 1000 Newton or at least 5000 or at least 8000 Newton per wire; there is a tensile stress, preferably at least 5 or 10 or 50 N / mm 2, in the support cable or contact wire mounted in the overhead line; the contact wire hangs freely between its suspension points; the length of the contact wire between its suspension points is at least 50 cm or 1 meter.
    During the replacement of a line breaker belonging to the overhead line, while maintaining the tension in the contact wire, the tension strip under the line breaker is first suspended on its suspension points, while the line breaker passes on the tension in the contact line. Subsequently, the tensioning strip with the ends of the contact wires fixed to the pipe interrupter is fixed by placing and tensioning the clamping plates. From this moment on the tensioning strip is ready for passing through the tensile stress prevailing in the contact wire. The pipe breaker can now be detached from the contact wire after which a replacement pipe breaker is placed and fixed to the contact wire. As soon as the new pipe breaker has been correctly installed and is therefore ready to pass through the tension existing in the contact wire, the tensioning strip is removed by first removing the clamping plates and then releasing the tensioning strip from its suspension.
    The tensioning strip can alternatively be used to replace a length of contact wire in the existing overhead line while maintaining the tension in the contact wire. To this end, the tensioning strip is first suspended under the contact wire and then fixed to the contact wire by placing and tensioning the clamping plates. From this moment on the tensioning strip is ready for passing through the tensile stress prevailing in the contact wire. The length of contact wire between the clamping plates can now be separated from the rest of the contact wire remaining in the overhead line, after which this length of contact wire is removed and a replacement length of contact wire is explained on the tensioning strip and the ends are permanently fixed at the free ends protruding from the clamps rest of the contact wire. As soon as the new length of the contact wire has been placed in accordance with the regulations and is therefore ready to pass through the tension existing in the contact wire, the tensioning strip is removed by first removing the clamping plates and then releasing the tensioning strip from its suspension.
    The following is an explanation of the example shown in the drawing.
    FIG. 1 is a perspective view of the tensioning strip, folded out;
    FIG. 2 shows the tensioning strip collapsed;
    FIG. 3 shows a railway in perspective.
    Fig. 1 shows the position of the free ends of a double contact wire on the tensioning strip. The clamping plate engaging the contact wire is shown remotely. The contact wire is clamped between the clamping plate and the tensioning strip, for which screws or bolts (not shown) protrude into the clamping plate and tensioning strip and both tension them together, with the contact wire between them (see fig. 2).
    The line breaker located between the free ends of the contact wires and filling the free space between these free ends is not shown. The contact wires are attached to the line breaker so that the tensile stress is transmitted from the one end to the other wire end via the line breaker.
    The tensioning strip has a suspension eye on both ends.
    The clamping strip is removed after the pipe breaker has been replaced.
    FIG. 2 shows the pivot mounting more clearly. On one strip part there are two continuous flanges with two holes each. On the other strip part there are two flanges with three holes each, which two flanges do not extend beyond the associated strip part. The middle hole contains the swivel pin. With the other two holes, the folding or folding position can be secured with a removable pin.
    FIG. 3 shows the chain suspension of the contact wire: the carrier cable hangs freely between the portals in an arc. The contact wire is suspended from the carrying cable via vertical hanging wires. The carrying cable and the contact wire hang freely between the engagement points of the vertical hanging wires.
    Many alternative embodiments belong to the invention.
    权利要求:
    Claims (6)
    [1]
    1. Replacement of a length of contact wire or a line breaker while maintaining the tensile stress prevailing in the contact line of the existing railway overhead line with the temporary application of a tension-resistant and bending-rigid tensioning strip that is temporarily tensile-fixed to sections of contact wire in front of and behind the overhead line. replaced contact line length or line breaker and thus coincides with and forms a bypass on the outside of the line contact line length or line breaker for passing through the tensile stress between the pieces of contact line during the replacement, which tension strip is removed at the end of the replacement after which the galvanic current is again on the overhead line is set.
    [2]
    Replacement as claimed in claim 1, wherein the length of the contact wire and / or pipe breaker extends entirely above the upper surface of the tensioning strip.
    [3]
    3. Replacement as claimed in claim 2, wherein the sections of contact wire extend entirely above the upper surface of the tensioning strip.
    [4]
    4. Replacement as claimed in claim 1, 2 or 3, wherein the upper surface of the tensioning strip extends substantially linearly between the pieces of contact wire.
    [5]
    5. Replacement as claimed in claim 1, 2, 3 or 4, wherein the pieces of contact wire and possibly the part of contact wire before and after remain free from plastic deformation, such as kink-free and / or bending-free, during the replacement.
    [6]
    A bending-rigid tensioning strip or sled for the method according to any of claims 1-5, with a clamp for clamping the contact wire at both ends.
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    同族专利:
    公开号 | 公开日
    NL2016240B1|2017-04-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2020-03-25| PD| Change of ownership|Owner name: VOLKERWESSELS INTELLECTUELE EIGENDOM B.V.; NL Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: VOLKERRAIL NEDERLAND B.V. Effective date: 20200317 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL2014287|2015-02-12|
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