• 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:
    Stiffness compensator for rigid catenary systems in existing or newly installed installations, consisting of a mechanical interface of the slide type (9) whose ends are installed, on the one hand, tied by a beam (V) of rigid catenary that may already be installed and, on the other hand, tying the copper contact wire (C) on which the pantographs of the trains slide, exerting a sufficient contact force that guarantees the correct transmission of electrical current, physically separating the beam elements (V) and cable (C). Around the slide can be installed different elastic elements (2) and/or elastomers (3), which vary the value of the punctual stiffness in each installation place, allowing the stabilization of the value of the applied force of the pantograph on the cable (C) and obtaining a homogeneous wear profile both in the wipers of the pantographs and in the contact wire. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2683778A1
    申请号:ES201830778
    申请日:2018-07-27
    公开日:2018-09-27
    发明作者:Alvaro CALVO HERNANDEZ；Juan De Dios SANZ BOBI
    申请人:Universidad Politecnica de Madrid；
    IPC主号:
    专利说明:

    5
    10
    fifteen
    twenty
    25
    30
    DESCRIPTION
    OBJECT OF THE INVENTION
    This specification refers to a request for an Invention Patent relating to a rigidity compensating device whose purpose is to guarantee the homogeneity of the contact between pantograph and rigid catenary in new and existing installations, achieving a dynamic contact force whose value is as as stable as possible, using a mechanical interface based on a slide on which elastic elements can be adapted depending on the stiffness and damping values required at each point of the installation. In addition, it has been designed in such a way that it is feasible to install the compensator in infrastructure already in use without greater investment than that required to manufacture the necessary devices and the installation and adjustment time.
    FIELD OF THE INVENTION
    This invention has its application within the industry dedicated to rail transport in facilities that have rigid catenary or in which its installation is foreseen, specifically to the installation and maintenance companies of the facilities.
    BACKGROUND OF THE INVENTION
    At present, the infrastructures that have rigid catenary systems as a means of transporting the electric current from the substations to the point of consumption base their facilities on the succession of some supports on which, anchored by means of elements known as staples, are It has a beam with an aluminum alloy profile that geometrically supports a copper alloy cable at its bottom.
    5
    10
    fifteen
    twenty
    25
    30
    The shape of the aluminum beam ties the copper wire as if it were a jaw, which makes both elements behave like a single body. This means that the passage of a train, whose pantograph slides on the copper wire, exerting a sufficient contact force to guarantee a correct transmission of the electric current, makes both elements vibrate.
    The supports on the other hand, which are rigid and are anchored to the tunnel segments or arranged on poles or porches in open areas, are arranged at varying distances between 8 and 12 meters depending on the expected operating speed and Space availability As a general rule, the higher the operating speed, the smaller the distance between supports.
    Both the connection between beam and cable, as well as the distance between supports entails a situation in which the contact force between the pantograph of a train and the copper wire of the catenary is not stable, increasing its value when passing through the points in those that there is a support and decreasing in the points located between two supports.
    This variability results in irregular wear of the pantograph rub, forcing its replacement by excessive wear in a few areas, instead of regular wear of its entire surface. The copper cable, meanwhile, will have a higher rate of wear in areas where there is a support than in the central areas between two consecutive supports.
    In the light of the above, the problem of irregular wear cannot be completely resolved by acting solely on the supports, since there will continue to be central points between supports in which the displacement of the beam by vibration will be broader and, therefore, will continue producing irregular wear on the contact elements.
    The applicant is aware of the existence of several patents focused on reducing the rigidity of the beam and cable assembly, generally acting on the shape of the beam profile. For this, the shape of the upper area is usually preserved, in which the clamps or clips of the supports are installed, and of the
    5
    10
    fifteen
    twenty
    25
    30
    lower area, the one that ties the copper wire, but the configuration of the beam core is varied, for example, to an inverted "Y" letter, as for example described in AT312002 (T), DE60302658 (T2), DK1484214 (T3), EP1484214 (A1), EP1484214 (B1),
    ES2254897
    DESCRIPTION OF THE INVENTION
    The solution that the invention proposes to the exposed problem, unlike the prior art, does not affect the beam component or the cable component that are part of the railway installation, but to include a component whose function is to be an interface mechanical between beam and cable that establishes an operational relationship that mitigates the variation of the contact force. In addition, since it is a problem that is currently occurring, the invention allows a simple modification of existing facilities without large investments, both monetary and time, to compensate for the stiffness mentioned.
    The proposed device is configured as a novelty in its field of application, given that due to its characteristics there is no history that can be installed in infrastructure previously built and operated, unlike the invention in which the replacement of the elements is not required existing simply implies the addition of a new mechanism. It allows therefore the use of the current elements offering advantages in terms of the wear rate of the friction elements in charge of the transmission and capture of electric current in rigid catenary installations.
    More specifically, the device proposed by this invention is mechanical means for regulating and guiding the deformation of the rigid catenary system, which are arranged between the aluminum beam of the catenary and the copper cable installed therein. , allowing the relationship of these two elements to be deformed by dissipating part of the energy that the passage of a pantograph applies to the conductor cable and the catenary beam, mainly reducing vibrations at low frequencies of the system, which in turn are what Higher deformations occur therein and that more directly affect the contact force between pantograph and copper wire.
    The mechanical means comprise at least one elastic element that allows the relationship between the beam and the cable to be deformed by regulating the contact force that the pantograph makes on the conductor cable.
    Additionally, the invention provides that the mechanical means comprise at least one elastomeric element that collaborates with the elastic element to regulate the contact force of the pantograph with the conductive cable.
    In the preferred embodiment, the mechanical means comprise a slide that is fixed on the catenary beam and which is also located on a guide through which the conductor cable is fixed. The slide is movable on the guide overcoming the action of the elastic element, depending on the pressure that the pantograph applies on the conductor cable. In the case where the compensator incorporates an elastomeric element, the slide can also be moved on the guide overcoming the action of the elastomer of the mechanical means, depending on the pressure that the pantograph 15 applies on the conductor cable.
    The slide is provided with some lugs that are located in the grooves provided in the guide, for which it is allowed to perform the commented slide.
    The fixing of the conductor cable to the slide is carried out by means of clamps.
    In addition, the guide comprises a base that defines a widening on which the clamps are fixed so that they retain the conductor cable.
    The fastening of the slide to the beam is carried out by means of an upper anchor that is inserted into the beam and which comprises a lower threaded housing in which it is threaded and fixed the upper end of the slide.
    The elastic element is arranged and retained between the upper anchor and the clamps. Likewise, in the case where it incorporates an elastomeric element, it is also arranged and retained between the upper anchor and the clamps.
    5
    10
    fifteen
    twenty
    25
    30
    Ultimately, the installation of the described stiffness compensator implies, therefore, to vary the existing configuration of the beam-cable connection, bearing the energy to the train, which is the usual installation and in which there is no physical separation between them, by a new configuration that introduces a new component that will carry the cable and that is mounted on the beam; thus separating these elements to compensate and absorb the stresses transmitted from the train through the conductor cable to the beam; mechanical interface function which is the purpose established in this invention for the stiffness compensating component by regulating the deformation of the system resulting from the pantograph-overhead line interaction of contact under rigid contact line installation conditions.
    One of the special advantages of the described configuration is that the elastic element can be configured according to the needs of each point where it is installed, including only elements of the elastic type or a combination of elastic element and element of elastomeric material. This feature makes it especially suitable for installations where wear is uneven in very close areas, since the installation of a device is planned for every meter of catenary or less, although this distance will be specifically calculated for each installation.
    DESCRIPTION OF THE DRAWINGS
    To complement the description that is being made and in order to help a better understanding of the features of the invention, a set of plans and views are attached as an integral part thereof, with an illustrative character and not limiting the following has been represented:
    Figure number 1. - Corresponds to the exploded perspective view of the device.
    Figure number 2. - Corresponds to a front view of the device of the previous figure mounted between the beam and the conductor cable.
    Figure 3.- Corresponds to a side view of the previous figure.
    Figure 4.- Corresponds to section A-A of figure 3.
    5
    10
    fifteen
    twenty
    25
    30
    Taking into account the mechanical vibrations that occur in the electric current collection systems based on rigid catenary, the proposed device acts by modifying the stiffness and damping of the relationship between the copper wire and the aluminum beam that make up the system of catenary.
    According to the aforementioned, it can be indicated that the stiffness compensator for rigid catenary systems, for use in existing or new installations that is recommended, comprises an upper anchorage (1) of the device to the catenary beam (V), in which lower area there is a threaded cavity where the threaded upper end of a sliding part (9), elastic element (2), elastomeric element (3), clamps (4) and (6) of the current conductor cable (C) of copper, both parts being equal, guide (5) of the slide (9), fasteners (7) and (8) (screw and nut for each brand) that hold the clamps from side to side, which have been simplified as a bolt in the image of figure 1.
    The geometry of the upper anchor (1) is inserted and retained in the lower part of the rigid catenary beam profiles (V) commonly used. The element that is attached to the aluminum beam (V), in its lower part has a threaded housing in which the slide (9) is adapted. This connection makes the device assembly viable. The threaded joint, once the beam and cable are fixed, cannot be loosened since the installation of several consecutive devices prevents the relative rotation of the aluminum beam against the copper cable around the central axis of the slide, thus preventing the device disassemble.
    The slide (9) comprises some lugs (T) that are located in grooves (R) provided in the guide (5), to allow the sliding of the slide through the guide (5), depending on the contact force that The pantograph performs on the cable. This configuration allows the force that the pantograph applies to the cable (C), has less variation between maximum and minimum, providing a dynamic contact force of greater stability, so that the
    physical parameters of the elastic element (2) and the elastomeric element (3).
    7
    5
    10
    fifteen
    twenty
    25
    30
    The guide (5) comprises a base (5 ’) that defines a widening configured to fix the clamps (4, 6) by which the cable (C) is retained.
    It is expected that as long as there is no physical cut in the aluminum beam, stiffness compensators are installed at distances of less than 1 m between one and the next. The existence of a physical cut in the aluminum beam does not imply that two consecutive beam sections must have the rigidity compensator installed, one section having a compensator and the next one with the usual beam and cable configuration, since acting on the supports is You can adjust the height of the copper cables so that in both cases it is the same, so that conventional installations can coexist with the invention, which also allows the installation of the device of the invention in phases.
    In the same way and given the characteristics of the device, it is considered especially useful in transition zones between rigid catenary beams and flexible catenary zones where the contact wire hangs from a support cable located at a higher level than the contact. This transition, which sometimes occurs in the state of the art, is known to involve problems of acute wear on the contact elements since it is passed from a highly flexible element to a very rigid one or the other way around. The Stiffness Compensator of the invention allows a smoother transition between one condition and another.
    It is not considered necessary to make this description more extensive so that any person skilled in the art understands the scope of the invention and the advantages derived therefrom.
    The materials, shape, size and arrangement of the elements will be subject to variation as long as this does not imply an alteration to the essentiality of the invention.
    The terms in which this report has been described must always be taken broadly and not limitatively.
    权利要求:
    Claims (7)
    [1]
    5
    10
    fifteen
    twenty
    25
    30
    1. - Stiffness compensator for rigid catenary systems depending on the contact force that the pantograph performs on the current conductor cable (C), characterized in that it comprises mechanical means for regulating and guiding the deformation of the rigid catenary system which is produced by the contact force of the pantograph, which are deposited between a beam (V) of the rigid catenary system and the current conductor cable (C)
    [2]
    2. - Stiffness compensator for rigid catenary systems, according to the first claim, characterized in that the mechanical means comprise at least one elastic element (2).
    [3]
    3. - Stiffness compensator for rigid catenary systems, according to the preceding claims, characterized in that the mechanical means comprise at least one elastomeric element (3).
    [4]
    4. - Stiffness compensator for rigid catenary systems, according to the preceding claims, characterized in that the mechanical means comprise a slide (9) that is fixed on the catenary beam and arranged on a guide (5) on which it is fixed the conductor cable, where the slide (9) moves on the guide (5) overcoming the action of the at least elastic element (2) and selectively overcoming the action of the elastomeric element (3) of the mechanical means, depending on the pressure that the pantograph applies to the conductor cable.
    [5]
    5. - Stiffness compensator for rigid catenary systems, according to claim 4, characterized in that the slide (9) comprises lugs (T) that are located in grooves (R) provided in the guide (5), whereby slide
    [6]
    6. - Stiffness compensator for rigid catenary systems, according to claim 4, characterized in that the fixing of the conductor cable to the slide is carried out by means of clamps (4, 6).
    [7]
    7. Rigidity compensator for rigid catenary systems, according to claim 6, characterized in that the guide (5) comprises a base (5 ') defining a widening on which the clamps (4, 6) are fixed by retaining the cable driver.
    5. Rigidity compensator for rigid catenary systems, according to claim 4,
    characterized in that the fastening of the slide to the beam is carried out by means of an upper anchor (1) that is inserted in the beam and which comprises a lower threaded housing in which the upper end of the slide (9) is threaded and fixed.
    10. 9. Stiffness compensator for rigid catenary systems, according to claim 8,
    characterized in that the elastic element (2) and selectively the elastomeric element (3) are arranged and retained between the upper anchor (1) and the clamps (4 and 6).
    类似技术:
    公开号 | 公开日 | 专利标题
    KR100739328B1|2007-07-12|Rigid-bar bracket
    KR100631830B1|2006-10-09|Collision absorbing device of pier for a bridge
    ES2302197T3|2008-07-01|ELECTROMAGNETIC BRAKE DEVICE ON RAILS.
    CA2629334C|2014-05-20|A constant strain spring compensation device
    BR112015001139B1|2021-05-04|rail fastening system for transition regions
    US20160075258A1|2016-03-17|Gantry type movable catenary system at a railway crossing
    ES2563761T3|2016-03-16|Grifa to suspend a rigid catenary section
    ES2683778A1|2018-09-27|RIGIDITY COMPENSATOR FOR RIGID CATENARY SYSTEMS |
    CA2851890C|2018-12-18|Vehicle line
    KR100928464B1|2009-11-25|R-bar bracket
    BR112014010111B1|2020-10-13|elastic rail clamping device
    BR112019027428A2|2020-07-07|prefabricated rail beam for rail-type vehicle and rail transit system for rail-type
    JP2004346733A|2004-12-09|System for fixing rails to structure like viaduct
    KR101900512B1|2018-09-19|rigid bar support system
    KR20180075189A|2018-07-04|rigid bar transition device for high speed electric railroad
    ES2835334T3|2021-06-22|Suspension device for an overhead profile with electrical contact on a rail vehicle track
    CN204589795U|2015-08-26|A kind of highway bridge Anti-knocking stretching device
    ES2361397T3|2011-06-16|AIR CONTACT LINE CATENARY.
    KR20190021824A|2019-03-06|Connecting apparauts of rigid bar and rigid bar system having the same
    TW202122284A|2021-06-16|System for carrying contact wires and catenary junction comprising the system
    KR20060003301A|2006-01-10|Spring type tensioning device
    ES2590537B2|2017-10-03|DEVICE FOR REDUCING VIBRATIONS IN DRIVING AIR PROFILES
    US1793505A|1931-02-24|Suspension clamp
    RU2266212C1|2005-12-20|Anchor section of compensated system with catenary suspension of high-speed railway
    US1132734A|1915-03-23|Supporting structure for trolley-conductors.
    同族专利:
    公开号 | 公开日
    ES2683778B2|2019-01-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB918317A|1961-02-24|1963-02-13|Nhk Spring Co Ltd|Composite catenary overhead contact wire systems|
    DE2729578A1|1977-06-28|1979-01-11|Licentia Gmbh|Vibration damping for overhead conductor rail - has shaped rails slotted between conductor and hangers|
    US4230209A|1977-10-20|1980-10-28|Japanese National Railways|Means of stringing trolley wires|
    JPS57107922A|1980-12-23|1982-07-05|Japanese National Railways<Jnr>|Balance hanging direct suspension device of trolley wire|
    RU55696U1|2005-06-23|2006-08-27|Государственное образовательное учреждение высшего профессионального образования "Омский государственный университет путей сообщения"|CONTACT WIRING SUSPENSION DEVICE IN THE TRANSITION SPAN OF THE CONTACT NETWORK|
    CN107618403A|2017-09-18|2018-01-23|西南交通大学|A kind of dropper|
    法律状态:
    2018-09-27| BA2A| Patent application published|Ref document number: 2683778 Country of ref document: ES Kind code of ref document: A1 Effective date: 20180927 |
    2019-01-14| FG2A| Definitive protection|Ref document number: 2683778 Country of ref document: ES Kind code of ref document: B2 Effective date: 20190114 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201830778A|ES2683778B2|2018-07-27|2018-07-27|RIGIDITY COMPENSATOR FOR RIGID CATENARY SYSTEMS|ES201830778A| ES2683778B2|2018-07-27|2018-07-27|RIGIDITY COMPENSATOR FOR RIGID CATENARY SYSTEMS|
    [返回顶部]