EP2154047A1 - Système de verrouillage pour aiguillage de voies ferrées - Google Patents

Système de verrouillage pour aiguillage de voies ferrées Download PDF

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Publication number
EP2154047A1
EP2154047A1 EP08761583A EP08761583A EP2154047A1 EP 2154047 A1 EP2154047 A1 EP 2154047A1 EP 08761583 A EP08761583 A EP 08761583A EP 08761583 A EP08761583 A EP 08761583A EP 2154047 A1 EP2154047 A1 EP 2154047A1
Authority
EP
European Patent Office
Prior art keywords
box
bar
point
slider
roller
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.)
Granted
Application number
EP08761583A
Other languages
German (de)
English (en)
Other versions
EP2154047B1 (fr
EP2154047A4 (fr
Inventor
Vicente Albisua Aspiazu
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.)
Amurrio Ferrocarril y Equipos SA
Original Assignee
Amurrio Ferrocarril y Equipos SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from ES200701371A external-priority patent/ES2325823B1/es
Priority claimed from ES200801252A external-priority patent/ES2364057B1/es
Application filed by Amurrio Ferrocarril y Equipos SA filed Critical Amurrio Ferrocarril y Equipos SA
Publication of EP2154047A1 publication Critical patent/EP2154047A1/fr
Publication of EP2154047A4 publication Critical patent/EP2154047A4/fr
Application granted granted Critical
Publication of EP2154047B1 publication Critical patent/EP2154047B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control

Definitions

  • the present invention relates to a bolting system for points changing in railways, which presents among other characteristics greater stability and security of functioning, along with ease of fitting and removal, moreover requiring minimum maintenance.
  • This invention is also applicable to movable point frogs.
  • railway traffic needs rails which are displaced (movable rails or points) so that trains can pass from one track to another, along with movable points which move from one position to another in synchrony with the switches.
  • movable rails Owing to the requirements of these movable rails, railway junctions are among the most dangerous sections of track, where the risk of derailment is high.
  • the movable rails (points) In order to minimize these risks, the movable rails (points) have to be perfectly fixed in their final positions, without being affected by vibrations and blows produced by the passage of the trains.
  • the bolting system for points changing in railways and in movable point frogs forming the object of the invention, has to achieve a synchronous movement of the two points, and also, once positioned and the force pushing them has disappeared, they have to remain in that position without being affected by vibrations and blows produced by the passage of the trains.
  • the mechanisms In order to achieve a minimum or zero maintenance, the mechanisms have to be sealed to prevent the entry of dust and water.
  • the movable pieces have to slide on anti-friction materials, (Teflon, molybdenum, bronze, etc.) and, where possible, they have to roll.
  • the system is conceived for being used in a hollow sleeper, or close to one of them. It consists of two independent bolt bodies, one for each point, but joined by an intermediate bar adjustable in length.
  • Each body is suspended from the shoe of the counterpoint (fixed rail), by means of a fastening achieved with clamps, which avoids the need to drill the rail in order to be able to fix a bolt.
  • Attached to the point is an appendage which is fixed to the shoe thereof with a single drill-hole.
  • the expansion due to temperature changes of the point produces the displacement of the point with respect to the appendage, but the bolt permits this since provision has already been made for the bolt-point union to be carried out by means of a rotating pulley-wheel via which the pushing and pulling of the point takes place.
  • the piece which produces the locking of the mechanism is a roller which moves between two fixed positions where it remains recessed and as it moves it mechanically joins two different pieces: slider and bar, as we will see later on in relation to the figures.
  • the roller When the point is coupled, in other words, in contact with the counterpoint, the roller is recessed between the piece known as the box and the slider, It locks them together and, as it has no possibility of movement, it keeps them joined together and fixed.
  • the piece known as the bar is moved by an external actuating mechanism and has a rabbet where the roller can be housed.
  • the roller "falls” and then the slider and the box cease to be locked together. The point is therefore free.
  • the roller locks the bar with the slider and, as the bar carries on moving, it drags the slider and this in turn drags the point.
  • the actuating system for carrying out the points change can be of the hydraulic type and in this case the bar-slider unit is going to act as a hydraulic cylinder when it receives fluid from the outside. As the maneuvering and retention stresses do not usually exceed 900 kg, a low pressure circuit can be used.
  • the invention can be applicable to a movable point frog, which is displaced from one position to another (open-closed) by means of the bolting system forming the object of the invention, in which the movable point is replaced by a switch.
  • the bar carries two rabbets in which can be housed partially and sequentially two horizontal rollers which move in respective transversal sheaves of the slider, instead of there just being one roller as occurs in the previous embodiment.
  • this second roller By using this second roller, the distance which the point moves manages to be increased up to 160 mm and, moreover, a smoothness and precision are achieved in the mechanism, as we have already said.
  • the slider moves freely within the box, the distance between the rollers being less than that existing between the rabbets of the box.
  • the two horizontal rollers fix the closing and opening positions of the corresponding point.
  • the closing position is obtained with the bar in the withdrawn position and the closing roller (the rear or outer one of the unit) being advanced with respect to the rear rabbet of the bar and with the rear rabbet of the box. If the bar is made to advance in order to carry out the change of points, the closing roller falls into the rear rabbet of said bar and the opening roller is simultaneously forced to move by the roller, dragging along the slider until the forward rabbet of the box is reached, at which moment this opening roller is forced to leave the rabbet of the bar and become housed in the forward rabbet of the box. When the bar advances even more, the locking in the maximum separation of the point with respect to the counterpoint is achieved and maintained.
  • This tightening roller Is fitted horizontally and can be moved vertically by rolling on a vertical plaque of the appendage, thereby solving the problems of expansion of the point, since the support carrying the plate spring includes a coaxial annular piece freely rotating in slider and with a radial arm which materializes the thrusting piece.
  • the appendage integral with the point includes a lower extension where a horizontal roller is fitted which is able to be housed below a projection of the box, thus immobilizing the point in the closed position.
  • the bolting system for points changing in railways and/or movable point frogs which the invention proposes, consists of two independent bolt bodies referenced with 1 and 2, one for each point 3 or movable rail, each of them being suspended from the shoe of the counterpoint 4 or fixed rail and joined together by the intermediate bar 5 adjustable in length.
  • Each body 1 is suspended from the shoe 6 by means of a fastening achieved with clamps 7 and 8, which avoids the need to drill the rail 4. Nevertheless, other fastening devices can also be used.
  • the clamps 7 and 8 are joined to the piece known as the box 9 by means of screws or threaded studs 10 and locking nuts 11, passing through the holes made in them and in the lugs 12 of the box 9.
  • the box 9 offers the hole 13 ( figure 8 ) for passage of the slider 14 which runs transversely to the fixed rail 4 and which offers a tubular configuration since the bar 15 passes through its center.
  • the bar 15 of the bolt body 1 (the one on the right of figure 1 ) is connected to the actuating mechanism of the points change, of the hydraulic, mechanical or similar type, and its movement produces the opening or closing of the point according to conjugated movements in both bolt bodies, since the bars 15 are those which are joined together via the intermediate bar 5 ( figure 1 ).
  • the support 16 Fixed in the slider 14 is the support 16 which is integral above with the appendage 17 to which the point 3 is attached. When the slider 14 is linearly displaced the point 3 does so at an angle in order to move closer to or further away from the counterpoint 4.
  • roller 18 arranged horizontally and transversely in the interior space of the box 9 where it can be displaced vertically in a transversal sheave of the slider 14, resting in turn on the bar 15.
  • the box 9 has two separated grooves 20 and 21 in its upper wall in which the roller 18 can be partially housed in the most elevated position of the latter, corresponding to the locking of the point 3 in the closed position ( figure 2 ) or open ( figure 6 ).
  • the reference 22 designates the semicylindrical rabbet which the bar 15 presents in its transversal arrangement, in which the roller 18 is able to be partially housed so that it can thus be transported from one position to another dragging the slider 14 with it.
  • said rabbet figures 3 and 4
  • it remains tangential to the upper wall of the box 9 and can displace the slider 14 when the bar 15 does so.
  • the slider 14 does so simultaneously because the roller is dragging it due to the fact that it at all times remains in the sheave 19 (as shown in figure 4 ).
  • the attachment of the support 1 with the appendage is carried out by means of the pulley-wheel 25 arranged in the vertical pin 26 inserted in said support 16.
  • the pulley-wheel 25 moves in a slot 27 of the appendage 17.
  • the expansion due to temperature changes of the point 3 are corrected owing to the fact that the drag is carried out with the pulley-wheel 25 which can roll.
  • the appendage 17 is attached to the point 3 by means of the screw 28 passing through a hole in the shoe of the point 3 (see for example figure 2 ).
  • the point 3 is seated and slides during its movements of the points change on a guide 29 since the mechanism Is located between two sleepers or in a hollow sleeper as we have said earlier.
  • each one of the bolt bodies 32 and 33 presents, each one of them being linked to the respective movable rail or point 34 and secured to the shoe 35 of the respective fixed rail or counterpoint 36.
  • Both bolt bodies 32 and 33 are joined to each other by the tie rod or intermediate bar 37 which is adjustable in length and whose ends are attached via a cardan joint to the bars 38 which traverse them axially.
  • the free end of one of the bars 38 is connected to an external mechanism for simultaneously carrying out the movement of the points 34, one moving them away from the counterpoint 36 and the other moving them closer to it.
  • the box 39 is tubular and moving in its axial gap is the slider 43, also tubular and sliding inside that is the bar 38 referred to above, connected to the actuating mechanism for the points change.
  • the support 44 Fixed in the slider 43 is the support 44 formed by an annular piece 45 coaxial and enveloping the slider 43 and linked linearly to its end though with free rotation; and a radial arm which materializes a thrusting piece 46 to which is connected an appendage 47 integral with the point 34 (though these means of union have not been represented due to being conventional).
  • the point 34 does so since it is integral with it, in order to move closer to or further away from the counterpoint 36.
  • This movement was effected in the first form of embodiment with a single horizontal roller 18 which moves between two fixed positions in which it is able to remain recessed.
  • the bar 38 in order to improve this functioning and make it smoother and more precise, in accordance with this second form of embodiment, provision is made for the bar 38 to include two wide rabbets 48 and 49 in which it is possible to house the respective rollers 50 and 51 which move vertically in separate transversal sheaves 52 and 53 of the slider 43. These rollers in turn interact with the semicylindrical rabbets 54 and 55 of the box 39.
  • the dragging of the slider 43 is or is not obtained when the bar 38 is slid, as we will see further below.
  • Figure 11 shows the position of the point 34 coupled to the counterpoint 36 and locked or belted, corresponding to the initial or starting position as far as achieving the change of points as shown in figure 14 .
  • the bar 38 which is in an end position (towards the right) with respect to the fixed position of the box 39, prevents the falling of the closing roller 50 since it is retained due to resting on the cylindrical part of the former and therefore the slider 43 is mechanically joined to the box 39 and is thus kept in this locking or bolting position because the thrusting piece 46 maintains the point 34 against the counterpoint 36.
  • An elastic contact pressure is obtained due to the fact that the support 44 and more specifically its thrusting piece 46 acts on some plate springs 56 which in turn transmit the effort to a spring-holder 57 threaded to the yoke 58 which supports a horizontal tightening roller 59 which is the element that presses directly on the vertical plaque 60 of the appendage 47 integral with the point 34, and keeps it firmly locked.
  • the bar 38 continues advancing and it is the opening roller 51 which drags the slider 43 since the closing roller 50 passes tangentially to the upper wall of the box 39 and does not do any dragging at all.
  • the point 34 continues to separate from the counterpoint 36.
  • the bar 38 continues to move until the opening roller 51 meets the sheave 55 which the box 39 has in its front zone, occupying it and permitting the bar 38 to pass beneath (see figure 14 ). In this position, the point 34 becomes locked again, this time in the open position.
  • the intermediate tie bar 37 which joins the two bolt bodies 32 and 33 transmits the movement to the second body 33, with which the latter moves in a manner symmetric to the first (when one opens the point 34, the other closes it).
  • plate springs 56 in series, in order to press the point 34 against the counterpoint 36, permits considerable tightening efforts to be achieved between these elements with little travel.
  • the thruster 46 is a freely rotating piece with respect to the slider 43 since it is linked to the freely rotating bushing 45. If the point 34 advances due to expansions, it pulls on the appendage 47, this on the yoke 58 and the yoke 58 on the spring-holder 57.
  • the spring-holder 57 which is embedded in the thruster 47 with the anti-friction bushing, longitudinally pulls on the thruster 46, forcing it to rotate. But the spring-holder 57 in turn rotates inside this anti-friction bushing, with which the tightening roller 59 is always in the horizontal position pressing on the plate 50 of the appendage 47, though it goes up and down rolling in it and therefore it maintains the tightening between the point 34 and the counterpoint 36.
  • the lower part of the appendage 47 includes an elevation roller 61 which fits below a lug 62 included in the box 39. With this, the oscillations of the point 34 produced by the passing of trains are prevented.
  • the tightening between the point 34 and the counterpoint 36 is regulated by threading the yoke 58 to a greater or lesser degree inside the spring-holder 57.
  • the spring-holder 57 is more introduced into the thruster 46 adopting a floating arrangement owing to the elasticity of the plate springs 56, while in figure 14 , since the point 34 is separated, the spring-holder 57 is displaced towards the right by the elastic pressure of the plate springs 56, until it meets up against the closing cover 63 threaded to the mouth of the thruster 46.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Connection Of Plates (AREA)
  • Railway Tracks (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Chain Conveyers (AREA)
  • Chutes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
EP08761583A 2007-05-18 2008-05-13 Système de verrouillage pour aiguillage de voies ferrées Active EP2154047B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200701371A ES2325823B1 (es) 2007-05-18 2007-05-18 Sistema de encerrojamiento para cambio de agujas en vias ferroviarias.
ES200801252A ES2364057B1 (es) 2008-04-30 2008-04-30 MEJORAS INTRODUCIDAS EN LA PATENTE DE INVENCIÓN Nº P200701371/1 POR: SISTEMA DE ENCERROJAMIENTO PARA CAMBIO DE AGUJAS EN VÍAS FERROVIARIAS.
PCT/ES2008/000339 WO2008142182A1 (fr) 2007-05-18 2008-05-13 Système de verrouillage pour aiguillage de voies ferrées

Publications (3)

Publication Number Publication Date
EP2154047A1 true EP2154047A1 (fr) 2010-02-17
EP2154047A4 EP2154047A4 (fr) 2011-03-30
EP2154047B1 EP2154047B1 (fr) 2012-05-09

Family

ID=40031436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08761583A Active EP2154047B1 (fr) 2007-05-18 2008-05-13 Système de verrouillage pour aiguillage de voies ferrées

Country Status (11)

Country Link
EP (1) EP2154047B1 (fr)
AR (1) AR066567A1 (fr)
AT (1) ATE556914T1 (fr)
AU (1) AU2008252869B2 (fr)
BR (1) BRPI0811734A2 (fr)
CL (1) CL2008001448A1 (fr)
CO (1) CO6241144A2 (fr)
ES (1) ES2386089T3 (fr)
MA (1) MA31429B1 (fr)
MX (1) MX2009012403A (fr)
WO (1) WO2008142182A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130032675A1 (en) * 2010-04-09 2013-02-07 Amurrio Ferrocarril Y Equipos, S.A Locking device for crossings with movable frog point
ES2495090A1 (es) * 2013-03-15 2014-09-16 Talleres Alegría S.A. Dispositivo de retención para elementos móviles en aparatos ferroviarios

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8684318B2 (en) 2010-09-16 2014-04-01 Spx International Limited Mechanical lock

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5730395A (en) * 1995-11-22 1998-03-24 Gec Alsthom Transport Sa Locking apparatus for locking a point of a rail switch, apparatus for operating and locking a point, a method of installing such apparatus, and apparatus for operating and locking a rail switch
WO1999020511A1 (fr) * 1997-10-22 1999-04-29 Vae Aktiengesellschaft Dispositif d'accouplement pour actionneur d'aiguille et/ou organe de fermeture

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1213950B (it) * 1987-12-16 1990-01-05 Sasib Spa Dispositivo universale di fermascambiatura esterna per deviatoi ferroviari
ITSV20030006A1 (it) * 2003-02-18 2004-08-19 Alstom Transp Spa Cassa di manovra per deviatori ferroviari tramviari o simili.
AT500296B1 (de) * 2003-10-31 2006-12-15 Vae Gmbh Einrichtung zum verriegeln von endlagen von beweglichen weichenteilen, insbesondere weichenverschluss

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5730395A (en) * 1995-11-22 1998-03-24 Gec Alsthom Transport Sa Locking apparatus for locking a point of a rail switch, apparatus for operating and locking a point, a method of installing such apparatus, and apparatus for operating and locking a rail switch
WO1999020511A1 (fr) * 1997-10-22 1999-04-29 Vae Aktiengesellschaft Dispositif d'accouplement pour actionneur d'aiguille et/ou organe de fermeture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008142182A1 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130032675A1 (en) * 2010-04-09 2013-02-07 Amurrio Ferrocarril Y Equipos, S.A Locking device for crossings with movable frog point
EP2557228A1 (fr) * 2010-04-09 2013-02-13 Amurrio Ferrocarril Y Equipos, S.a. Dispositif d'enclenchement pour coeur à pointe mobile
US8672274B2 (en) * 2010-04-09 2014-03-18 Amurrio Ferrocarrily y Equipos, S.A. Locking device for crossings with movable frog point
EP2557228A4 (fr) * 2010-04-09 2016-06-08 Amurrio Ferrocarril Y Equipos S A Dispositif d'enclenchement pour coeur à pointe mobile
ES2495090A1 (es) * 2013-03-15 2014-09-16 Talleres Alegría S.A. Dispositivo de retención para elementos móviles en aparatos ferroviarios

Also Published As

Publication number Publication date
AU2008252869B2 (en) 2012-07-05
MA31429B1 (fr) 2010-06-01
CO6241144A2 (es) 2011-01-20
ATE556914T1 (de) 2012-05-15
WO2008142182A1 (fr) 2008-11-27
AR066567A1 (es) 2009-08-26
EP2154047B1 (fr) 2012-05-09
EP2154047A4 (fr) 2011-03-30
ES2386089T3 (es) 2012-08-08
AU2008252869A1 (en) 2008-11-27
BRPI0811734A2 (pt) 2014-11-18
MX2009012403A (es) 2010-03-31
CL2008001448A1 (es) 2009-09-25

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