• 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:
    Desanding device for a rail vehicle (1), comprising at least one air guiding device (2, 7), which comprises fastening means (8) for arranging the air guiding device (2, 7) on the rail vehicle (1), wherein the at least one air guiding device (2, 7) is formed such that the air flow (6) caused by the movement of the rail vehicle (1) leads to a position immediately in front of the wheels (4) of an axle of the rail vehicle (1) leading in the direction of travel.
    公开号:AT518603A1
    申请号:T50357/2016
    申请日:2016-04-22
    公开日:2017-11-15
    发明作者:Christian Schelander-Klopsch Dr
    申请人:Siemens Ag Österreich；
    IPC主号:
    专利说明:

    description
    Entsandungseinrichtung.
    Technical area
    The invention relates to a desanding device for a rail vehicle
    State of the art
    Deposits of sand on tracks can be a hindrance to rail operations. Especially in desert areas tracks can be blown up with sand, which makes a complicated removal of the sand necessary, because excessive amounts of sand can also lead to derailments. These sanding machines are used, which are arranged on motor vehicles and which remove the sand, for example by means of a Sandfrässchleuder. These machines can also be arranged on the front side of a rail vehicle, which travels the route slowly. However, the known sanding methods have a disadvantage because they are not able to remove small sand deposits on the rail head. However, these small sand deposits, which represent no restriction for driving safety, cause massively increased wear on the rail vehicle wheels. Thus, the typical interval between two reprofiling (post-processing of the wheel profile) is reduced from 150,000km when driving in desert areas to about 30,000km. It is particularly disadvantageous that these minimal sand deposits are continuously recreated by wind and a cleaning run to remove these minimal
    Sand deposits with a sand brooder would be both uneconomical and unsuccessful. It therefore makes sense to equip the rail vehicles themselves with a device for removing small sand deposits from the tracks. As a result, the problem of continuously introduced new sand on the track can be solved because just the rail vehicle itself removes these deposits immediately and while driving. For this example, brushes can be used, which are arranged in front of the leading axis. Another possibility of sand removal consists of the blowing out of compressed air generated in the vehicle. All of these methods cause major changes to the vehicle and cause both increased maintenance and increased energy consumption.
    Presentation of the invention
    The invention is therefore an object of the invention to provide a Entsandungseinrichtung for a rail vehicle, which is maintenance and wear-free and which requires no connections to electrical or pneumatic systems of the rail vehicle.
    The object is achieved by a desander with the features of claim 1. Advantageous embodiments are the subject of the subordinate claims.
    According to the basic idea of the invention, a desanding device for a rail vehicle is constructed, which comprises at least one air guiding device with attachment means for arranging the air guiding device on the rail vehicle, wherein the at least one air guiding device is designed so that the air flow caused by the movement of the rail vehicle directly to a position before the wheels of a leading in the direction of travel axis of the rail vehicle is passed.
    As a result, the advantage can be achieved to remove the adhering to the rail head sand and to prevent grinding of this sand through the wheels of the rail vehicle can. Thus wear of wheels is reduced. Another significant advantage of the invention is that the desanding device has no moving parts or brushes and also requires no connections to electrical or pneumatic systems of the rail vehicle. Furthermore, a desanding device according to the invention can be retrofitted to existing vehicles.
    A preferred embodiment of the invention provides that the air flow guided directly in front of the wheels of an axis of the rail vehicle in the direction of travel comprises a horizontal speed component normal to the direction of movement of the rail vehicle. This is ensured by a guide of the air flow in a corresponding direction through the louver. In this case, the angle of the air flow with respect to the track is to be selected so that the sand leaves the track surface before the wheel touches the relevant point.
    The air guiding device can be designed in several ways, wherein according to a first preferred embodiment, the air guiding device is designed as a tube. This tube extends from the end face of the rail vehicle to a position immediately in front of the leading wheel. The end of the tube facing the wheel can be equipped with a nozzle narrowing the tube cross section, whereby the outflow characteristics, in particular the impact point and angle of impact of the air flow on the Track are well specified.
    It may be particularly advantageous to perform the air guide device as a tube with decreasing in the direction of movement of the air flow cross-section. Such can be the per unit time by the
    Air guide guided amount of air to be increased and the blow-off pressure and thus the cleaning effect can be increased.
    Another preferred embodiment of
    Desanding device provides to perform the louver as an air baffle. For this purpose, an air guide plate is to be arranged immediately in front of the leading wheel, which comprises corresponding fastening means for attachment to the car body of the rail vehicle. This air baffle is in the simplest case of an angled to the longitudinal axis of the rail vehicle sheet, which directs the flow of air in front of the leading wheel targeted so that the rail head sticking sand is taken from this directed air flow and is no longer ground by the wheel.
    The air baffle can be performed in a simple design as a sheet-metal component, wherein for optimum adaptation of the air flow recesses (holes) can be introduced into the air baffle. These holes change the pressure and flow conditions, so that an exact adaptation to a specific rail vehicle under
    Consideration of the most frequently driven speed is possible.
    The streamlined air guide plate has an overpressure and a negative pressure side, which results from the arrangement in a moving air mass. Both the overpressure arising from the flow (from the upstream side of the air baffle plate) can be used for desanding and also the negative pressure at the non-flown side. The second is advantageous in practical embodiments of the invention, since thereby the Luftbleitblech can be arranged closer to the vehicle longitudinal axis and the space for the air baffle may under no circumstances protrude from the gauge of the vehicle. The air baffle can also, similar to the wing of an aircraft be equipped with a streamlined profile, which allows a particularly accurate management of the air flow, but increases the construction cost of a baffle.
    Another embodiment of the invention provides to equip internals on the undercarriage of a rail vehicle with aerodynamic properties, which directs an air flow immediately in front of the wheels of a leading in the direction of travel axis of the rail vehicle. This can be done for example by appropriately shaped underfloor containers or similar devices.
    There are typically provided for each leading wheel of a rail vehicle, a louver. For longer vehicles, or Zugzusammenstellungen it may be advantageous to provide multiple Entsandungseinrichtungen per Zugzusammenstellung.
    Brief description of the drawings
    They show by way of example:
    Fig.l rail vehicle with Entsandungseinrichtung means of tubular air duct, front side.
    Fig.2 rail vehicle with Entsandungseinrichtung means of tubular air duct, bottom.
    Fig.3 rail vehicle with Entsandungseinrichtung means of tubular air duct with narrowing cross-section, underside.
    Fig.4 rail vehicle with Entsandungseinrichtung means of air baffle, side view.
    Fig.5 rail vehicle with Entsandungseinrichtung means of air baffle, underside.
    Embodiment of the invention
    Fig.l shows an example and schematically the end face of a rail vehicle with a desander. It is a view of the front side of a rail vehicle 1, which has a Bahnräumer 5 below the car body. In this Bahnräumer 5 two air inlets 3 are arranged, which open into a respective tubular air duct 2 and through which caused by the movement of the rail vehicle 1 air flow is partially conducted into the air ducts 2. The thus directed air flow is passed through the tubular air ducts 2 in front of the wheels 4. A Bahnräumer 5 is particularly well suited for the connection of an air inlet 3. For vehicles without Bahnräumer 5 or if an arrangement on Bahnräumer 5 is not desired, a
    Air inlet 3 are arranged at a different position on the front side of a rail vehicle 1.
    2 shows by way of example and schematically the underside of a rail vehicle with a desander. It is the bottom of the rail vehicle 1 of Fig.l shown. In this view, the structure and function of Entsandungseinrichtung are clearly visible. The air flow 6 through the tubular air ducts 2 occurs at the end of the air ducts 2, in front of the respective associated wheel 4.
    This escaping air has a higher pressure than the surrounding static air, which removes the sand adhering to the tracks. The exact execution of the openings of the air ducts 2 or optional nozzles at the end of the air ducts 2 are not shown in this schematic diagram.
    3 shows by way of example and schematically the underside of a rail vehicle with desanding device by means of a tubular air duct with a narrowing cross section. It is the embodiment of FIG. 2, wherein the tubular air duct 2 has a curved course with narrowing cross-section.
    4 shows by way of example and schematically a rail vehicle with a desander from an air guide plate in a side view. It is a side view of a rail vehicle 1 shown in the forehead, which includes a Bahnräumer 5 similar to the embodiment shown in FIGS. 1 to 3. Between the Bahnräumer 5 and the leading wheel 4 desanding device in the form of a baffle plate 7 is arranged. The air guide plate 7 is releasably secured by means of a fastening 8 to the car body of the rail vehicle 1.
    5 shows by way of example and schematically the underside of a rail vehicle with a desandering device from an air guide plate. The underside of the rail vehicle 1 from FIG. 4 is shown. In this case, the angled to the longitudinal axis of the rail vehicle 1 arrangement of the air baffles 7 can be seen, which leads to an oriented transversely to the direction of air flow 6 immediately in front of the wheels 4. In the exemplary embodiment shown, the air baffles 7 are angled such that the deploying air flow 6 is caused by the negative pressure arising on the air baffle 7.
    List of designations 1 Rail vehicle 2 Pipe-shaped air duct 3 Air inlet 4 Wheel 5 Railway scraper 6 Air flow 7 Air baffle 8 Fastening
    权利要求:
    Claims (7)
    [1]
    claims
    1. desanding device for a rail vehicle (1), comprising at least one air guiding device (2, 7), which fastening means (8) for arranging the air guiding device on the rail vehicle (1), characterized in that the at least one air guiding device (2, 7) is formed so that the movement of the rail vehicle (1) caused air flow (6) is passed to a position immediately in front of the wheels (4) leading in the direction of travel axis of the rail vehicle (1).
    [2]
    2. desanding device for a rail vehicle (1) according to claim 1, characterized in that the immediately before the wheels of a leading in the direction of travel axis of the rail vehicle (1) directed air flow (6) comprises a horizontal velocity component normal to the direction of movement of the rail vehicle (1).
    [3]
    3. desanding device for a rail vehicle according to one of claims 1 or 2, characterized in that the air guiding device is designed as a tube (2).
    [4]
    4. desanding device for a rail vehicle (1) according to claim 3, characterized in that the tube (2) with in the direction of movement of the air flow (6) is made smaller-sized cross-section.
    [5]
    5. desanding device for a rail vehicle (1) according to one of claims 1 or 2, characterized in that the louver (7) is designed as a baffle plate.
    [6]
    6. desanding device for a rail vehicle (1) according to claim 5, characterized in that the air guide plate (7) is equipped with recesses.
    [7]
    7. rail vehicle (1), comprising a desander according to one of claims 1 to 6.
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    同族专利:
    公开号 | 公开日
    EP3420139A1|2019-01-02|
    WO2017182428A1|2017-10-26|
    ES2835077T3|2021-06-21|
    EP3420139B1|2020-10-07|
    AT518603B1|2018-02-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS4919634A|1972-06-15|1974-02-21|
    WO2015048979A1|2013-10-01|2015-04-09|Volvo Truck Corporation|Particle removing arrangement for an electric vehicle|CN108867535A|2018-06-11|2018-11-23|张凯|A kind of clear husky device for desert section rail|
    CN109837861A|2019-03-21|2019-06-04|石家庄铁道大学|Bucket wheeled rail removes sand vehicle|US521544A|1894-06-19|Snow-cleaning attachment for locomotive-engines |
    US2374312A|1944-02-25|1945-04-24|Tackett Elijah|Railroad track cleaner|
    US9631332B2|2014-08-28|2017-04-25|Electro-Motive Diesel, Inc.|Movable sand plow for locomotive|US10167600B2|2013-10-01|2019-01-01|Volvo Truck Corporation|Particle removing arrangement for an electric vehicle|
    法律状态:
    2019-09-15| PC| Change of the owner|Owner name: SIEMENS MOBILITY GMBH, AT Effective date: 20190814 |
    2021-12-15| HC| Change of the firm name or firm address|Owner name: SIEMENS MOBILITY AUSTRIA GMBH, AT Effective date: 20211108 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50357/2016A|AT518603B1|2016-04-22|2016-04-22|Entsandungseinrichtung|ATA50357/2016A| AT518603B1|2016-04-22|2016-04-22|Entsandungseinrichtung|
    EP17719528.6A| EP3420139B1|2016-04-22|2017-04-18|Sand removal device|
    ES17719528T| ES2835077T3|2016-04-22|2017-04-18|Desander equipment|
    PCT/EP2017/059110| WO2017182428A1|2016-04-22|2017-04-18|Sand removal device|
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