EP2384949B1 - Vorrichtung und Verfahren zum Aufbringen von Schmierfett auf das bewegliche Teil einer Schienenweiche - Google Patents

Vorrichtung und Verfahren zum Aufbringen von Schmierfett auf das bewegliche Teil einer Schienenweiche Download PDF

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Publication number
EP2384949B1
EP2384949B1 EP20110160572 EP11160572A EP2384949B1 EP 2384949 B1 EP2384949 B1 EP 2384949B1 EP 20110160572 EP20110160572 EP 20110160572 EP 11160572 A EP11160572 A EP 11160572A EP 2384949 B1 EP2384949 B1 EP 2384949B1
Authority
EP
European Patent Office
Prior art keywords
blade
applicator element
grease
operating position
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP20110160572
Other languages
English (en)
French (fr)
Other versions
EP2384949A1 (de
Inventor
Graziadio Mazzi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazzi Tecnology Srl
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Mazzi Tecnology Srl
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Filing date
Publication date
Application filed by Mazzi Tecnology Srl filed Critical Mazzi Tecnology Srl
Publication of EP2384949A1 publication Critical patent/EP2384949A1/de
Application granted granted Critical
Publication of EP2384949B1 publication Critical patent/EP2384949B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K3/00—Wetting or lubricating rails or wheel flanges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/26—Lubricating of switches

Definitions

  • This invention relates to a device and a method for applying lubricating grease to the mobile blades of railway points.
  • a problem particularly felt in the railway sector is that of wear on rails following the passage of trains. That problem manifests itself in particular at curved stretches where the lateral thrust of the wheel on the rail is particularly high and, therefore, where friction between the two is at its maximum.
  • the first automatic lubricating devices were devices able to apply lubricating oil. In most cases they were mounted close to the rail, at a distance allowing the train wheel to pass, and applied the oil by spraying it onto the rail.
  • the main disadvantage of that type of device is that it cannot guarantee an adequate lubricating effect because the oil, having a low viscosity, tends to run down the side of the rail and is wasted.
  • patent US 6 742 624 B2 describes a wiper bar for application to a rail of a railroad track for applying lubricant to the head of the rail having a series of lubricant outlets and a rubber-like guide for confronting the gage face of the rail head and guiding lubricant discharged from the outlets up on the gage face: such a device must be fixed to the base of the rail.
  • the technical purpose which forms the basis of this invention is to provide a device and a method for applying lubricating grease to the mobile blades of railway points which overcome the above-mentioned disadvantages.
  • the numeral 1 denotes in its entirety a device for applying lubricating grease to the mobile blades 2 of railway points 3 made in accordance with this invention.
  • Figure 1 schematically illustrates a cross-section of a part of a set of railway points 3.
  • the set of points 3 comprises a base 4, fixed to a sleeper 5 below by sleeper screws 6, to which the stock rail 7 is fixed by conventional fixing systems 8. Resting on a raised flat bearing of the base 4 there is the blade 2, which can move between the operating position of Figure 1 in which it is drawn near the stock rail 7, and the non-operating position of Figure 2 in which it is distanced from the stock rail 7.
  • the lubricating device 1 comprises first a supporting structure 9.
  • the supporting structure 9 can be fixed directly to the base 4 of the set of railway points 3, as shown in Figures 1 and 2 , so as to guarantee that it remains stably and precisely positioned.
  • this can be achieved by fixing the supporting structure 9 to the base 4 of the set of points 3 directly using one or more sleeper screws 6 which fix the base 4 to the sleeper 5 below.
  • the lubricating device 1 may be suitably fixed to the sleeper or to the stock rail (for example with brackets or clips).
  • the supporting structure 9 comprises a plurality of shaped flanges 10 (extending perpendicularly to the plane of the drawing of Figures 1 to 3 ) which are connected to each other.
  • shaped flanges 10 extending perpendicularly to the plane of the drawing of Figures 1 to 3
  • the position of the various flanges 10 relative to each other may be modified in such a way as to be able to adjust the position in space of the operating part of the device 1 (advantageously in a plane substantially perpendicular to the direction of extension of the stock rail 7).
  • the device 1 also comprises at least one applicator element 13 mounted on the supporting structure 9, designed to apply grease to the blade 2.
  • the applicator element 13 comprises a contact portion 14 against which in practice the blade 2 of the set of railway points 3 can rest 2 when it is in its non-operating position, as shown in Figure 2 .
  • the device 1 comprises feed means 15 for feeding the lubricating grease to the contact portion 14.
  • the feed means 15 comprise a tank for the grease, a pump whose intake inlet is connected to the tank and whose delivery outlet is connected to a dispensing duct 16 whose other end is in turn connected to the applicator element 13.
  • the duct is shown in the accompanying drawings.
  • the principle on which this invention is based is that the grease is transferred from the applicator element 13 to the blade 2 after the blade 2 has come to rest against the contact portion 14 of the dispensing element.
  • the feed means 15 may, for example, be made in such a way that they distribute the grease on the contact portion 14 before the blade 2 rests on it.
  • the contact portion 14 comprises a contact surface 17 able to adhere to a lateral surface of the blade 2 and at least one recess 18 made in the contact surface 17.
  • the recess 18, which in Figure 4 has the shape of a slot at the contact surface 17, in practice can be positioned directly opposite the blade 2, and is fed with the grease by the feed means 15, in such a way that it can be substantially filled with the grease. As shown in Figure 5 , in the embodiment illustrated this is achieved using passages 19 made in the applicator element 13 and connected to the dispensing duct 16. However, preferably the mouths 20 of the recesses have an elongate shape parallel with what in practice is the direction of extension of the blade 2.
  • At least the portion 21 of the applicator element 13 which forms the contact surface 17 is made of elastically compressible material (for example, rubber), in such a way that it adheres in the best possible way to the wall of the blade 2, creating a certain seal as the grease passes around the open mouths 20 of the recesses.
  • elastically compressible material for example, rubber
  • the applicator element 13 is mounted on the supporting structure 9 in such a way that it can move, relative to the supporting structure, between a home position ( Figures 1 and 3 ) and an operating position ( Figure 2 ).
  • this is done by fixing, cantilever-style, to the applicator element 13, two parallel rigid rods 22 with the outer end 23 enlarged to act as an end of stroke element.
  • the two rods 22 are slidably inserted in two bushings 24, welded to one of the flanges 10 of the supporting structure 9.
  • the applicator element 13 in the home position the applicator element 13 is distanced from the supporting structure 9, whilst in the operating position it is close to it.
  • the applicator element 13 is mounted on the supporting structure 9 in such a way that the pressure of the blade 2 on the contact portion 14 causes the applicator element 13 to pass from the home position to the operating position.
  • the elastic means 25 are also preferably elastic means 25 interposed between the supporting structure 9 and the applicator element 13 for pushing the applicator element 13 towards the home position in the absence of the blade 2.
  • the elastic means are two coil springs mounted so that they are coaxial with the rods 22 supporting the applicator element 13, between the applicator element and the supporting structure 9. Thanks to the elastic means 25 the device 1 can therefore compensate in the best possible way for any irregular positioning of the set of points 3.
  • the device 1 also comprises at least one sensor 26 for detecting the presence of the blade 2 resting on the contact portion 14, as well as control means 27 which are operatively associated with the sensor 26 and with the feed means 15 for enabling grease feed according to what the sensor 26 detects.
  • the sensor 26 may be a contact sensor 26 (for example, mechanical) or a contactless sensor (for example, electromagnetic, as shown in the accompanying drawings, or optical or ultrasonic).
  • Operation of the feed means 15 depends on the device 1 operating logic.
  • control means 27 activate the feed means 15 when the sensor 26 detects the presence of the blade 2, in such a way as to fill the recesses 18 with the grease which therefore makes contact with the lateral surface of the blade 2 which closes off the recesses 18. Consequently, when the blade 2 returns to its operating position, it draws with it part of the grease, partly emptying the recesses 18.
  • control means 27 would issue the command to dispense a predetermined quantity of grease at the moment when the sensor 26 detected the absence of the blade 2.
  • the feed means 15 could instead be activated periodically at predetermined time intervals.
  • this invention also relates to a set of railway points 3 equipped with the applicator device 1 described above.
  • the method for applying lubricating grease to the blades 2 of railway points 3 comprises two main operating steps.
  • the first operating step comprises applying the grease on at least one part of the surface to be greased while said surface is resting on a contact portion 14 of an applicator element 13, in such a way that the next time it returns to its operating position the blade 2 carries with it at least part of the grease with which it made contact.
  • This can be achieved, for example, with the device 1 described above in any of the ways indicated.
  • the other main operating step comprises putting the blade 2 in contact with the applicator element 13, making at least part of its surface to be greased rest on the contact portion 14 of the applicator element 13, at the moment when the blade 2 is in its non-operating position, precisely as indicated with reference to the greaser device 1 described above.
  • This invention brings important advantages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lubricants (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Claims (10)

  1. Vorrichtung zum Aufbringen von Schmierfett auf das bewegliche Teil von Schienenweichen, enthaltend:
    - eine Trägerstruktur (9);
    - wenigstens ein Aufbringelement (13), montiert an der Trägerstruktur (9) und enthaltend einen Kontaktabschnitt (14), an welchem während des Betriebes der Vorrichtung eine Zunge (2) von einem Weichensatz (3) anliegen kann, wenn sich die Zunge in einer Nicht-Betriebsposition befindet; und
    - Zuführmittel (15) zum Zuführen des Fettes an den Kontaktabschnitt (14).
  2. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass der Kontaktabschnitt (14) eine Kontaktfläche (17) enthält, welche in der Lage ist, während des Betriebes der Vorrichtung an einer Seitenfläche der Zunge (2) anzuliegen, und dass er ebenfalls wenigstens eine Vertiefung (18) enthält, eingearbeitet in die genannte Fläche, und die praktisch direkt gegenüber der Zunge (2) positioniert werden kann, wobei die Zuführmittel (15) auf solche Weise an die Vertiefung (18) angeschlossen sind, dass sie an diese Fett abgeben können.
  3. Vorrichtung nach Patentanspruch 1 oder 2, dadurch gekennzeichnet, dass das Aufbringelement (13) wenigstens einen Abschnitt enthält, welcher die Kontaktfläche (17) bildet, hergestellt aus elastisch komprimierbaren Material.
  4. Vorrichtung nach Patentanspruch 1, 2 oder 3, dadurch gekennzeichnet, dass sie ebenfalls wenigstens einen Fühler (26) enthält, um während des Betriebes der Vorrichtung das Vorhandensein der an dem Kontaktabschnitt (14) anliegenden Zunge (2) zu erfassen, sowie Steuermittel (27), die betrieblich dem Fühler (26) und den Zuführmitteln (15) zugeordnet sind, um das Zuführen von Fett zu ermöglichen, je nachdem was der Fühler (26) erfasst.
  5. Vorrichtung nach Patentanspruch 4, dadurch gekennzeichnet, dass der Fühler (26) ein elektromagnetischer, optischer, mechanischer oder ein Ultraschall-Fühler (26) ist.
  6. Vorrichtung nach einem jeden der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass sich das Aufbringelement (13) im Verhältnis zu der Trägerstruktur (9) zwischen einer Ruheposition und einer Betriebsposition bewegen kann, wobei der Druck der Zunge (2) auf den Kontaktabschnitt (14) während des Betriebes der Vorrichtung in der Lage ist, das Verschieben des Aufbringelementes (13) aus der Ruheposition in die Betriebsposition zu bewirken.
  7. Vorrichtung nach Patentanspruch 6, dadurch gekennzeichnet, dass sie ebenfalls elastische Mittel (25) enthält, eingesetzt zwischen der Trägerstruktur (9) und dem Aufbringelement (13), um während des Betriebes der Vorrichtung das Aufbringelement (13) im Falle des Fehlens der Zunge (2) in die Ruheposition zu verschieben.
  8. Vorrichtung nach einem jeden der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass die Zuführmittel (15) einen Fettbehälter enthalten, sowie eine Pumpe, angeschlossen an den Behälter und an eine Abgabeleitung (16), welche wiederum ebenfalls an das Aufbringelement (13) angeschlossen ist.
  9. Weichensatz, dadurch gekennzeichnet, dass er eine Aufbringvorrichtung (1) enthält, hergestellt nach einem jeden der vorstehenden Patentansprüche.
  10. Verfahren zum Aufbringen von Schmierfett auf die Zungen von Weichen, welche beweglich sind zwischen einer Betriebsposition, in welcher sich die Zungen im Kontakt mit einer Anschlagschiene (7) befinden, und einer NichtBetriebsposition, in welcher sie von dieser abstehend sind, dadurch gekennzeichnet, dass es die folgenden Betriebsphasen enthält
    - wenn sich die Zunge (2) in ihrer Nicht-Betriebposition befindet, sie in Kontakt mit einem Aufbringelement (13) zu bringen, wobei wenigstens ein Teil ihrer zu fettenden Fläche an einem Kontaktabschnitt (14) des Aufbringelementes (13) anliegt;
    - Benutzung des Aufbringelementes (13), um Fett auf wenigstens einen Teil der zu fettenden Fläche aufzubringen, während sie an der Kontaktfläche (17) anliegt, so dass, wenn sie anschliessend in ihre Betriebsposition zurückläuft, die Zunge (2) wenigstens einen Teil des Fettes, mit dem sie in Kontakt gekommen ist, mitnimmt.
EP20110160572 2010-05-07 2011-03-31 Vorrichtung und Verfahren zum Aufbringen von Schmierfett auf das bewegliche Teil einer Schienenweiche Not-in-force EP2384949B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVR2010A000100A IT1400938B1 (it) 2010-05-07 2010-05-07 Dispositivo e metodo per l'applicazione di grasso lubrificante ad aghi mobili di scambi ferrovari

Publications (2)

Publication Number Publication Date
EP2384949A1 EP2384949A1 (de) 2011-11-09
EP2384949B1 true EP2384949B1 (de) 2013-09-11

Family

ID=43384722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110160572 Not-in-force EP2384949B1 (de) 2010-05-07 2011-03-31 Vorrichtung und Verfahren zum Aufbringen von Schmierfett auf das bewegliche Teil einer Schienenweiche

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EP (1) EP2384949B1 (de)
IT (1) IT1400938B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7017875B2 (ja) * 2017-07-28 2022-02-09 日本信号株式会社 転てつ機、及び転てつ機の給油方法
CN110804906B (zh) * 2019-11-07 2021-08-27 中铁电气化局集团有限公司 一种提速道岔外锁闭装置锁钩自动检测注油的方法
CN111425748A (zh) * 2020-03-30 2020-07-17 宁夏苏锡铜业科技有限公司 一种漆包线生产线中功能件安装导轨用涂油机构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1792342A (en) * 1926-03-18 1931-02-10 Sr George E Whitmore Automatic rail and wheel-flange oiler
US1850592A (en) * 1929-03-07 1932-03-22 William C Masters Track lubricator
IT1289070B1 (it) 1996-01-31 1998-09-25 Graziadio Mazzi Dispositivo per spruzzare grasso lubrificante sulla parete laterale di rotaie ferroviarie
US6742624B2 (en) * 2002-01-29 2004-06-01 Lincoln Industrial Corporation Railroad rail lubricating apparatus
US7481297B1 (en) * 2004-12-23 2009-01-27 Carlton Leslie Apparatus and method for lubricating railroad tracks
ATE439288T1 (de) 2006-03-28 2009-08-15 Mazzi Tecnology S R L Schmiervorrichtung für eisenbahnschienen

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Publication number Publication date
EP2384949A1 (de) 2011-11-09
IT1400938B1 (it) 2013-07-02
ITVR20100100A1 (it) 2011-11-08

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