EP1349765B1 - Dispositif de deplacement et de blocage d'elements d'aiguillage mobiles - Google Patents

Dispositif de deplacement et de blocage d'elements d'aiguillage mobiles Download PDF

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Publication number
EP1349765B1
EP1349765B1 EP02729394A EP02729394A EP1349765B1 EP 1349765 B1 EP1349765 B1 EP 1349765B1 EP 02729394 A EP02729394 A EP 02729394A EP 02729394 A EP02729394 A EP 02729394A EP 1349765 B1 EP1349765 B1 EP 1349765B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
coupling
rod
locking members
locking
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.)
Expired - Lifetime
Application number
EP02729394A
Other languages
German (de)
English (en)
Other versions
EP1349765A1 (fr
Inventor
Karl Schnedl
Herbert Achleitner
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.)
Voestalpine Turnout Technology Zeltweg GmbH
Voestalpine Railway Systems GmbH
Original Assignee
Voestalpine VAE GmbH
Voestalpine Weichensysteme GmbH
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
Application filed by Voestalpine VAE GmbH, Voestalpine Weichensysteme GmbH filed Critical Voestalpine VAE GmbH
Priority to AT02729394T priority Critical patent/ATE335642T1/de
Publication of EP1349765A1 publication Critical patent/EP1349765A1/fr
Application granted granted Critical
Publication of EP1349765B1 publication Critical patent/EP1349765B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B61L5/107—Locking mechanisms for points; Means for indicating the setting of points electrical control of points position
    • 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
    • B61L5/04—Fluid-pressure devices for operating points or scotch-blocks

Definitions

  • the invention relates to a device for adjusting and locking movable switch parts with a piston formed by a hydraulic piston, which cooperates via coupling or locking members with an axially displaceable sleeve for receiving the radially displaceable coupling or locking members, wherein the slidable sleeve is coupled to the movable switch part, and with an outer, the sleeve and the rod at least partially cross-tube.
  • EP 0 603 156 A1 shows and describes a limit switch securing of movable switch parts, and in particular a switch lock, in which a bolt or a rod is guided in a tube, wherein the rod and the tube are held axially displaceably in an outer tube.
  • the tube in this case has openings for displaceable in the radial direction locking members, which were formed in the known design of balls or rollers.
  • the skirt of the rod also has corresponding recesses at predetermined axial intervals, so that it is possible to displace these locking members either by moving the rod relative to the locking members carrying tube into an outward locking position in which they cooperate with stops in the outer tube or inwardly move, so that the relative displacement of the tube and rod is made possible in the axial direction.
  • the tube carrying the locking members was coupled to the switch parts to be adjusted.
  • a closure device has been proposed in WO 98/54041, in which a hydraulic unit is coupled, the closure unit itself, however, not part of the hydraulic adjusting element is and is guided in a separate, sealed housing.
  • the locking members bearing sleeve and the locking members carrying pipe must be taken along by a predetermined axial displacement corresponding to the rod, the displacement forces of the balls formed coupling or locking members must be added to move the sleeve.
  • the forces can not be taken as a line point contact of the ball but as effective on the annular surfaces of the locking segments forces. In the locking position was thus ensured that the large locking forces in the order of 100 000 Newton can be safely absorbed on the corresponding annular surfaces.
  • AT 403 683 B and AT 406 038 B show different embodiments of a changeover aid, in which a corresponding resilient support of the adjustment movement was made possible over a partial region of the displacement path.
  • a changeover aid in which a corresponding resilient support of the adjustment movement was made possible over a partial region of the displacement path.
  • either the locking members or the sleeve carrying the locking members were supported by springs, so that depending on the position of the respective coupling or locking members, the sleeve could be moved over part of the displacement supported by the force of the spring.
  • the inner rod is connected to corresponding coupling members for the movable soft parts.
  • the invention now aims to provide a device for adjusting and locking movable switch parts of the type mentioned, which is particularly compact and ensures improved wear resistance.
  • a device for adjusting and locking movable switch parts of the type mentioned which is particularly compact and ensures improved wear resistance.
  • all elements can be integrated within the outer tube, wherein further the possibility of continuous lubrication of the parts subject to wear should be achieved.
  • the coupling members, and in particular formed by balls coupling members should be efficiently secured against overload.
  • the invention essentially consists in the fact that a hydraulic line opens at one of the coupling point for the movable switch part facing away from the end face of the sleeve in the outer tube.
  • a hydraulic line opens at one of the coupling point for the movable switch part end face of the sleeve in the outer tube, the outer tube can be completely secured as a cylinder of a hydraulic drive, wherein both the inner rod and the sleeve surrounding the rod, which carries the coupling members and the locking members, can be acted upon with fluid.
  • one or more locking levels can be provided in each changeover unit.
  • a changeover device of a movable center piece such units can be connected directly to each other, wherein the displaceable inner tubes are connected to a corresponding coupling device.
  • the inventive design is such that the sleeve is sealingly guided in the outer tube, so that leakage oil losses can be largely avoided.
  • the design is preferably such that the coupling or locking members are formed by balls which cooperate with locking members formed by ring segments.
  • the balls are relieved accordingly, in the locking position, the corresponding surface contact, as can be formed by ring segments, which dive into corresponding recesses of the outer tube, can be ensured.
  • a switching or monitoring element housed in the bottom of the cylinder chamber be taken into account in the inventive design that the bottom of the cylinder chamber, in which both the rod and the sleeve are moved as a piston, is acted upon by the pressure medium. Therefore, a correspondingly high working pressure can in principle already cause a displacement of the actuator in the bottom of the cylinder in conventional actuators, whereby false readings could not be excluded.
  • an effective counter to the direction of displacement of the actuator of the switch or switching valve spring can be sufficiently large dimensioned to withstand the fluid pressure in the working space.
  • the training is therefore made so that in the bottom of the hydraulic connection bearing working cylinder of the rod and the sleeve, a plunger is mounted axially displaceable, said plunger is preferably designed as a differential piston.
  • the ram is designed as a differential piston, adjusting movements of the ram are prevented in the fluid under pressure in the working space and the adjusting forces necessary for the reliable indication of the end position are correspondingly reduced.
  • the training is made here so that the plunger cooperates with an electrical switch and / or a switching valve.
  • FIG. 1 shows a cross section through a device according to the invention, wherein this device is designed for the adjustment of a movable core
  • FIG. 2 shows an enlarged view of one half of the device according to FIG. 1 in section
  • FIG. 3 shows an enlarged detail of the valve arrangement in the bottom of the working cylinder.
  • 1 denotes a movable center piece, which is optionally displaced into contact with two wing rails 2 should be and locked in the respective investment position.
  • the device for adjusting the position of the core 1 and for locking the respective end position is denoted by 3 and comprises an outer tube 4, an inner tube guided in this tube 5 and a rod 6.
  • the inner tube 5 has openings 7 for receiving locking or coupling members 8, wherein the inner rod 6 has a corresponding stop shoulder 9 for the coupling with the coupling and locking member 8.
  • the device 3 is fixed in this case to the schematically indicated with 10 ends ends. It is further a hydraulic connection 11 can be seen, which opens into a working space 12, wherein the corresponding connections are designed symmetrically in the illustration of Figure 1.
  • a plunger 20 which acts as an actuator for an electrical switch 21 and / or switching valve.
  • the outer tube 4 is sealingly connected to this bottom 19, wherein in the 2, an additional flange tube 22 is additionally provided over a partial region of the axial length of the outer tube 4, which may be provided with corresponding screw connections in order to ensure a secure anchoring and a sealing connection of the outer tube 4 to the bottom 19 ,
  • the actuator or the plunger 20 is shown enlarged in the illustration of Figure 3, and it can be seen that an axial bore 23 connects the working space 12 with the spring chamber 24 of the plunger 20.
  • the plunger itself is supported by a spring 25 and has a piston 26, the spring-chamber-side annular surface is acted upon by the over the working chamber 12 and the axial bore 23 in the spring chamber 24 exiting fluid accordingly, so that the plunger 20 in its extended position even then remains when a correspondingly high pressure increases in the working space 12.
  • the plunger 20 in turn cooperates with the switch 21, wherein 27 corresponding vent holes are designated.
  • the inner tube 5 is slidably guided with the interposition of guide elements 28 in the outer tube 4, wherein the outer tube is stretched over the additionally screwed with this flange tube 22 and the flange 29 against the bottom 19 of the working space 12.
  • the outer tube 4 is sealed to the bottom 19 by the seal 30 and further at the outlet of the sleeve by means of the seal 31.
  • a further seal 32 between the inner outer tube 33 and the outer outer tube 34 is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Lock And Its Accessories (AREA)
  • Seats For Vehicles (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Fluid-Damping Devices (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Railway Tracks (AREA)
  • Chairs Characterized By Structure (AREA)

Claims (6)

  1. Dispositif de déplacement et de blocage d'éléments d'aiguillage mobiles (1) avec un piston hydraulique formé par une tige (6), qui coopère par des organes de couplage et de blocage (8) avec un manchon coulissant (5) mobile dans le sens axial et destiné à recevoir les organes de couplage et de blocage (8) mobiles dans le sens radial, le manchon coulissant (5) étant couplé à l'élément d'aiguillage mobile (1), et avec un tube extérieur (4) entourant au moins partiellement le manchon (5) et la tige (6), caractérisé en ce qu'une conduite hydraulique (11) débouche dans le tube extérieur (4) sur une face d'extrémité du manchon (5) opposée au point de couplage pour l'élément d'aiguillage mobile (1).
  2. Dispositif selon la revendication 1, caractérisé en ce que le manchon (5) est guidé de façon étanche sur le tube extérieur (4).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les organes de couplage et de blocage (8) sont formés par des billes (13) qui coopèrent avec des éléments de blocage formés par des segments d'anneau (14).
  4. Dispositif selon la revendication 1, 2 ou 3, caractérisé en ce qu'un poussoir (20) est supporté de façon coulissante dans le sens axial dans le fond (19) du cylindre de travail de la tige (6) et du manchon (5) portant le raccord hydraulique (11).
  5. Dispositif selon la revendication 4, caractérisé en ce que le poussoir (20) est conformé comme un piston différentiel.
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que le poussoir (20) coopère avec un commutateur électrique et/ou une soupape de commutation (21).
EP02729394A 2001-01-11 2002-01-11 Dispositif de deplacement et de blocage d'elements d'aiguillage mobiles Expired - Lifetime EP1349765B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT02729394T ATE335642T1 (de) 2001-01-11 2002-01-11 Einrichtung zum verstellen und verriegeln von beweglichen weichenteilen

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT402001 2001-01-11
AT402001 2001-01-11
PCT/AT2002/000007 WO2002055360A1 (fr) 2001-01-11 2002-01-11 Dispositif de deplacement et de blocage d'elements d'aiguillage mobiles

Publications (2)

Publication Number Publication Date
EP1349765A1 EP1349765A1 (fr) 2003-10-08
EP1349765B1 true EP1349765B1 (fr) 2006-08-09

Family

ID=3558564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02729394A Expired - Lifetime EP1349765B1 (fr) 2001-01-11 2002-01-11 Dispositif de deplacement et de blocage d'elements d'aiguillage mobiles

Country Status (15)

Country Link
US (1) US6945156B2 (fr)
EP (1) EP1349765B1 (fr)
JP (1) JP3862655B2 (fr)
CN (1) CN1224547C (fr)
AT (1) ATE335642T1 (fr)
BR (1) BR0206360A (fr)
CA (1) CA2434391C (fr)
CZ (1) CZ293392B6 (fr)
DE (1) DE50207782D1 (fr)
DK (1) DK1349765T3 (fr)
ES (1) ES2268026T3 (fr)
HU (1) HU228725B1 (fr)
PL (1) PL201062B1 (fr)
PT (1) PT1349765E (fr)
WO (1) WO2002055360A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20030296A1 (it) * 2003-11-19 2005-05-20 Ge Transp Systems S P A Cassa di manovra per scambi ferroviari
AT508027B1 (de) * 2009-03-30 2010-10-15 Enzesfeld Caro Metallwerke Ag Weiche für eisenbahnanlagen
JP5392653B2 (ja) * 2009-12-22 2014-01-22 公益財団法人鉄道総合技術研究所 ノーズ可動レールにおける転てつ棒取付け用の突設部とその製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586425A (en) * 1980-06-09 1986-05-06 General Dynamics Pomona Division Clamp locking device
US4754694A (en) * 1982-03-29 1988-07-05 Pneumo Abex Corporation Fluid actuator with lock position indicating means
US4647089A (en) * 1984-06-21 1987-03-03 The United States Of America As Represented By The Secretary Of The Army Dead bolt lock operable by pressurized fluid
IT1177258B (it) * 1984-11-19 1987-08-26 Alfa Romeo Auto Spa Attuatore autobloccante, a fluido
US4703683A (en) * 1985-02-04 1987-11-03 Grumman Aerospace Corporation Fluid actuator with internal locking
US4951552A (en) * 1989-11-27 1990-08-28 Fox Anton F Locking cylinder
AT397790B (de) 1991-01-16 1994-06-27 Alcatel Austria Ag Hydraulikeinheit
US5603536A (en) * 1995-09-26 1997-02-18 Applied Power Inc. Linear preload fluid power operated latch
AT403463B (de) 1995-12-14 1998-02-25 Vae Ag Einrichtung zum sichern der endlagen von weichen- und kreuzungsstellantrieben
AT405925B (de) 1997-05-27 1999-12-27 Vae Ag Einrichtung zum verriegeln der endlagen von beweglichen weichenteilen
US6322276B1 (en) * 2000-03-28 2001-11-27 Chung-Shan Institute Of Science And Technology Pressure release mechanism

Also Published As

Publication number Publication date
PL368865A1 (en) 2005-04-04
EP1349765A1 (fr) 2003-10-08
WO2002055360A1 (fr) 2002-07-18
DE50207782D1 (de) 2006-09-21
BR0206360A (pt) 2003-12-23
ATE335642T1 (de) 2006-09-15
JP3862655B2 (ja) 2006-12-27
PT1349765E (pt) 2006-12-29
PL201062B1 (pl) 2009-03-31
JP2004516993A (ja) 2004-06-10
US6945156B2 (en) 2005-09-20
CN1484595A (zh) 2004-03-24
HU228725B1 (en) 2013-05-28
ES2268026T3 (es) 2007-03-16
CA2434391A1 (fr) 2002-07-18
DK1349765T3 (da) 2006-12-11
CZ293392B6 (cs) 2004-04-14
HUP0401158A2 (en) 2004-10-28
CA2434391C (fr) 2011-05-24
CN1224547C (zh) 2005-10-26
US20040065193A1 (en) 2004-04-08
CZ20031763A3 (cs) 2003-11-12

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