• 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:

    公开号:NL2015359A
    申请号:NL2015359
    申请日:2015-08-27
    公开日:2016-07-12
    发明作者:Rutjes Rob
    申请人:Volkerrail Nederland Bv；
    IPC主号:
    专利说明:

    Interchangeable frame chair with improved thermal contact.
    The invention is aimed at preventing the proper functioning of a railroad switch equipped with point heating from being blocked by snow and ice.
    The prior art has many proposals for protecting a switch with heating against snow and ice, see for example EP1262597, US-A-5004190, WO2010142720, EP2677079, DE4325002 and DE19502125.
    The invention is aimed at improving the performance of a switch heater, without additional energy consumption, which is applicable for new points to be installed (new construction) and is especially suitable for improving existing systems already installed in the track (retrofit) and is easily applicable to existing systems already installed in the track without the need to replace components and without having to take the track out of operation for a long time.
    To this end, according to the invention, a heat-conducting material, preferably in an initially form-free or paste-like or gel-like state, is arranged against and / or between two alternating components, preferably in order to provide an empty space between the one exchange component and a subsequent exchange component connecting thereto. filling, preferably substantially complete, to obtain an intimate heat-conducting contact between these two components. Preferably, the one component, for example stop rail or rail tongue, is directly heated by the switch heating, for example the switch heating is attached to it and / or the other component is missing, for example sliding chair, direct heating by the switch heating. Applying the good heat-conducting material ensures good indirect heating of the other component via the directly heated component. The material that is applied acts as a kind of interface.
    The invention is directed, on the one hand, to avoiding or eliminating an air gap by filling it with the heat-conducting material, and, on the other hand, to increase the contact surface for the best possible use of contact heating. The invention is based on the insight that by ensuring good heat conduction or a large contact surface, a switch component can be sufficiently sufficiently indirectly heated by the switch heating by flowing the heat from one switch component via the added good heat-conducting material to the other component.
    Examples of the heat-conducting material to be applied are metal, preferably melting at a low temperature such as lead, tin, zinc, aluminum, copper (or alloys of these metals), heat-conducting paste or adhesive, which are preferably applied in a form-free state such as molten and then solidify or cure. By using form-free material, it is ensured as well as possible that any air gap is removed.
    The lead, etc., is preferably applied after the respective two switch components have been definitively mounted and without completely or partially disassembling these two switch components. With an existing switch in the track, the lead, etc., is dosed without prior dismantling. Optionally use is made of a formwork to hold the metered, form-free, for example liquid, material in place, for example to be sufficiently solidified or cured. In the case of new construction, the material, for example when it does not flow away automatically, i.e. for example a paste or gel, can be applied to the desired location before or during the assembly of the two replacement components.
    The provision of a caterpillar or dot making intimate contact with the two alternating components of the heat-conducting material, or partially covering or embedding one or both alternating components with this material, also forms part of the invention.
    The prior art (see above) mentions the use of lead, aluminum, copper, heat-conducting paste or adhesive to improve the transfer of heat from the heating element to the exchange component to be heated directly by the heating element. However, the state of the art is silent about the indirect heating of one switch component by the other switch component with a switch equipped with switch heating. The state of the art is also silent about a solution that can be applied to points installed with points heating already installed in the track. The lead, etc., is provided according to the state of the art before or during assembly of the parts. The use of tin or zinc as a heat-conducting material does not mention the state of the art.
    Preferably one or more of the following applies to the invention: the stop rail or rail tongue is provided below the rail head with a heating element running along its length, for example electric or flame pipe, and is heated directly by this heating element; the heating element on the stop rail is located on the side facing the rail tongue or on the other side; the switch component of which the sliding chair forms an integral part grips the rail foot of the stop rail to hold the latter in place; the switch component of which the sliding chair is an integral part lacks a heating element, in other words, direct switch heating is lacking; the heat-conducting material is provided in the or an air gap between the rail foot and the part of the interchangeable component to be heated indirectly which overlaps with the rail foot, for example an air gap under the rail foot, to the side of the rail foot or above the rail foot.
    It is important that the good heat-conducting material is arranged in such a way that it makes intimate contact with at least two separate components of a railway switch, so that the contact surface for heat transfer between these two components is substantially increased, so that a maximum heat flow from one to the other component is created. Both of these components are preferably made of metal, such as steel and / or must be able to melt snow and ice.
    Instead of casting, one could apply the material by injecting or spraying or pressing or pouring, etc. For example, a paste or gel could be injected into a narrow air gap or sprayed or spatulated.
    The accompanying drawing shows three examples of the many embodiments that belong to the invention.
    FIG. 1 shows a first system;
    FIG. 2 shows a second system;
    FIG. 3 and 4 each show an alternative to Figs. fig. 1.
    FIG. 1-4 all show a schematic end view with the parts spaced apart while in practice they lean against each other. The sliding chair of fig. 1 is also called the German system (rail type UIC60), that of fig. 2 is also called the Dutch system (rail type UIC54). The invention is applicable to all types of sliding chair and rail.
    An elongated heating element is mounted on the side of the stop rail on the side facing the switch tongue or on the other side. The sliding chair runs under the rail foot and the rail tongue slides over its sliding surface (see the arrow drawn in the head of the rail tongue).
    In Fig. 1, the nose of the sliding chair engages over the rail foot of the stop rail and, due to shape deviations, surface roughness, etc., this nose does not fit perfectly onto the rail foot, so that the heat-conducting contact surface between this nose and the rail foot is small. In other words, there are air gaps with the rail foot under this nose. Lead 10 is cast against this nose of the sliding chair and thereby penetrated into these air gaps. Heat flows from the heating element via the stop rail to the lead 10 and further on to the sliding chair so that the switch tongue does not freeze with its foot on the sliding chair and snow and ice lying on the sliding surface are melted. Lead can also be cast in the air gap 11 to the side of the rail foot and in the air gap 12 under the rail foot to improve the heat transfer from the stop rail to the sliding chair.
    In Fig. 2, the lead 10 is cast against the nose of the stop rail's foot facing the rail tongue and is thereby flowed a little under the rail foot, into the air gap between the rail foot and the sliding chair. The lead bead (ie the lead that is solidified sideways against the rail foot and on top of the sliding support) and also the lead in the air gap contribute to the transfer of contact heat from the stop rail to the sliding support of the sliding support. For a maximum contact surface area and therefore the best heat transfer, it is ensured in an alternative (shown in dotted lines in Fig. 2) that the lead is flowed everywhere under the rail foot, for example by also pouring from the other side of the rail foot so that a lead caterpillar 14 is created there which also contributes to better heat transfer.
    In Fig. 3, no lead 10 is forced under the rail foot. The molded lead bead provides extra heat transfer.
    In Fig. 4, a lot of lead 10 is cast on top of the rail foot and against the nose of the sliding chair. The air gaps 11, 12 and 13 could also be filled with lead.
    权利要求:
    Claims (10)
    [1]
    A method in which a heat-conducting material is applied against and / or between two switch components of a railway switch.
    [2]
    2. Method as claimed in claim 1, an empty space is filled between the one switch component and the other switch component connecting thereto with the material.
    [3]
    3. Method according to claim 1 or 2, the material is applied in an initially form-free or pasty or gel-like state.
    [4]
    Method according to any of claims 1-3, lead, tin, zinc, aluminum, copper (or alloys of these metals), heat-conducting paste or adhesive, is applied in a form-free state such as molten and solidifies or hardens.
    [5]
    5. A method according to any one of claims 1-4, a stop rail is directly heated by the switch heating, the associated sliding chair lacks direct heating by the switch heating, the good heat-conducting material provides good indirect heating of the sliding chair via the stop rail.
    [6]
    A method according to any one of claims 1-5, applied to an existing switch in the track, and lead is dosed, without prior disassembly, optionally using a formwork to hold the metered lead in place.
    [7]
    A method according to any one of claims 1-6, comprising applying a caterpillar or dot of the good heat-conducting material that makes intimate contact with the two alternating components.
    [8]
    A method according to any one of claims 1-7, comprising partially covering or embedding one or both exchange components with the good heat-conducting material.
    [9]
    9. A method according to any one of claims 1-8, the heat-conducting material is provided in an air gap between the rail foot and the part of the switchable heat exchanger component which overlaps with the rail foot, for example an air gap under the rail foot, on the side of the rail foot or above the rail foot.
    [10]
    10. Switch in which a heat-conducting material, preferably in an initially form-free or paste-like or gel-like state, is arranged against and / or between two switch components, preferably in order to provide an empty space between the one switch component and a subsequent exchange component connecting thereto. to fill.
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    同族专利:
    公开号 | 公开日
    EP2995719A1|2016-03-16|
    NL2015359B1|2017-07-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5004190A|1987-11-06|1991-04-02|Bylin Heating Systems, Inc.|Rail heating apparatus|
    DE4325002A1|1993-07-26|1995-02-02|Butzbacher Weichenbau Gmbh|Arrangement for heating track sections|
    DE19502125C2|1995-01-24|2000-03-23|Butzbacher Weichenbau Gmbh|Heating element arrangement|
    US5824997A|1996-08-05|1998-10-20|Fastrax Industries, Inc.|Railroad track switch heater|
    NL1018204C2|2001-06-01|2002-12-11|Holland Railconsult B V|Method and system for heating and / or cooling rails and rail element to be used thereby.|
    WO2010142720A1|2009-06-11|2010-12-16|Balfour Beatty Plc|Arrangement for heating railroad switches|
    CN101629402B|2009-08-07|2010-12-01|孙健|Fast snow melting device of railroad switch|
    EP2677079B1|2012-06-20|2016-04-27|TERMORAD S.C. Zaklad Termoelektryczny H. Komosa, K. Komosa|A railroad switch and a method of melting snow and ice in railroad switches|
    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
    NL2013380|2014-08-28|
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