EP0715580A1 - Dispositif d'aiguillage - Google Patents

Dispositif d'aiguillage

Info

Publication number
EP0715580A1
EP0715580A1 EP95921646A EP95921646A EP0715580A1 EP 0715580 A1 EP0715580 A1 EP 0715580A1 EP 95921646 A EP95921646 A EP 95921646A EP 95921646 A EP95921646 A EP 95921646A EP 0715580 A1 EP0715580 A1 EP 0715580A1
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder
hydraulic
spaces
valves
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
EP95921646A
Other languages
German (de)
English (en)
Other versions
EP0715580B1 (fr
Inventor
Gerald Durchschlag
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 Railway Systems GmbH
Original Assignee
Voestalpine VAE 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 filed Critical Voestalpine VAE GmbH
Priority to SI9530154T priority Critical patent/SI0715580T1/xx
Publication of EP0715580A1 publication Critical patent/EP0715580A1/fr
Application granted granted Critical
Publication of EP0715580B1 publication Critical patent/EP0715580B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B61L5/04—Fluid-pressure devices for operating points or scotch-blocks
    • B61L5/045—Fluid-pressure devices for operating points or scotch-blocks using electrically controlled fluid-pressure operated driving means

Definitions

  • the invention relates to a device for switching switches, in which a plurality of hydraulic actuating devices coupled to one another are arranged offset in the longitudinal direction of the rails.
  • a mechanical linkage In such devices for switching points, it is known to carry out the connection of the individual closures with a mechanical linkage.
  • a mechanical connection of a plurality of actuating devices or closures requires a relatively large amount of space and a large number of individual parts which are different from one another.
  • the pluggability of the tongue device is impaired with such a mechanical connection and, moreover, an unfavorable one-sided mass distribution is effected on a switch.
  • a hydraulic actuating device is already known from EP-A2 480 303, in which a plurality of individual adjusting cylinders are controlled via a hydraulic station.
  • Different circuit arrangements for the series connection or the parallel connection of a plurality of such hydraulic actuating devices are known from DE-B2 1952823.
  • the known hydraulic actuating devices each require a separate hydraulic drive unit, which overall gives a relatively complex construction.
  • the invention now aims to provide a device of the type mentioned at the outset, which can be easily retrofitted into existing switch devices and in which the effort for an additional drive unit and a correspondingly complex control system can be eliminated.
  • the invention aims at ensuring a high degree of reliability and susceptibility to malfunctions despite a simple construction requiring only a few different components.
  • the device according to the invention is intended to be a simple replacement for mechanical devices of known design can be used to improve the packability of the tongue device and to avoid the one-sided mass distribution on the switch.
  • the task according to the invention essentially consists in that at least one hydraulic cylinder piston unit is connected to a first mechanical actuating device, the cylinder chambers of which, as pump chambers, are connected to the work chambers of adjacent actuating devices formed by hydraulic cylinder piston units are connected in the same direction.
  • a first cylinder piston unit is used as a pump element means that complex drive units can be dispensed with.
  • the pump assembly displaces fluid from the respective work area into work areas of identically constructed cylinder piston assemblies, whereby the coupling with adjacent cylinder piston assemblies can be achieved directly.
  • such a device can be constructed with an identically constructed cylinder-piston assembly of particularly simple construction, only corresponding hydraulic lines being provided for the connection between adjacent cylinder-piston assemblies.
  • the interconnection takes place in such a way that adjacent cylinder piston assemblies are adjusted in the same direction when medium is pressed out of the first passive cylinder piston unit driven by the mechanical actuating device.
  • the design according to the invention is developed in such a way that the pump element and the hydraulic actuating devices each contain a floating piston or plunger guided between two work spaces in a cylinder, the end faces or ring surfaces of the plunger respectively immersing in the opposite work spaces Pistons or plungers have identical cross-sectional area.
  • a floating piston or plunger represents a structurally particularly simple, reliable and compact structural unit, which takes up the desired space in a small space Place can be arranged.
  • a plurality of identical cylinder-piston assemblies of this type can be provided, the main advantage being that pressure is applied to identical cross-sectional areas, which results in a synchronous movement.
  • the corresponding cross-sectional correction can be carried out in a simple manner by means of sealing elements or packings in such a configuration in order to ensure the respectively required adjustment path with a constant, displaced volume.
  • Such a hydraulic actuating device with floating pistons or plungers thus, in addition to its compact design, also easily adapts to the respectively required requirements.
  • the design can advantageously be such that the piston or plunger of the pump element has a bearing, in particular a sliding block with an annular groove or a bearing eye between it has free ends and that the bearing is protruding from an opening in the cylinder or between two fixed cylinders.
  • a particularly simple and reliable compact design is possible, which is also suitable for subsequent installation in a simple manner.
  • the annular surface of a piston can, as already mentioned above, ensure the required identical working cross section in both directions of displacement.
  • a particularly simple construction is achieved in this case in that the piston is rigidly connected to a continuous piston rod which penetrates the cylinder and that the piston rod or the cylinder is fixed in place.
  • the entire system is advantageously set at a predetermined excess pressure in relation to the atmospheric pressure. In this way, temperature fluctuations, which could lead to a change in pressure, can be buffered, for which purpose the design is advantageously made such that the working spaces of the cylinder-piston units are connected to a pressure accumulator via pressure relief valves.
  • the overpressure valves are designed as controllable check valves, such controllable check valves resulting in a high degree of operational reliability. At high operating temperatures, medium is pressed out into the pressure accumulator by opening the check valves, whereas if the pressure drops, the pressure can be made available to the system again via the check valves.
  • the design can be made in a particularly simple manner in such a way that a pressure-controlled directional control valve is connected to each of the pump work spaces which, when falling below a predetermined pressure, comes into the closed position, which ensures that in this case all adjusting devices are blocked. Blocking of the actuating devices would be signaled by the mechanical actuator and the corresponding control devices for the mechanical actuator at the corresponding point, so that the damage can be remedied immediately.
  • An alternative to changing the cross-section to control a different adjustment position along the rail path is an embodiment which is preferably arranged such that blow-open valves are arranged in a line connecting the two working spaces of a cylinder piston unit, for example in the form of a bore . Depending on the piston or plunging position, this connection is interrupted or it there is flow, whereby the target position can be reached exactly.
  • FIG. 1 shows a plan view of a partial area of a rail switch
  • FIG. 2 shows a detail of the connection of a cylinder-piston unit with a mechanical slide rod
  • FIG. 3 shows a schematic partial view of the illustration according to FIG. 2
  • FIG. 4 shows an enlarged illustration of the Fig. 5 shows a top view of the representation according to Fig. 4
  • Fig. 6 shows a schematic representation of the hydraulic connection of the individual cylinder piston assemblies
  • Fig. 7 shows a modified design of the hydraulic connection
  • Fig. 8 shows an alternative arrangement of hydraulic cylinder piston units in the course of the track
  • FIGS. 9, 10 and 11 further alternative designs of cylinder piston units for the device according to the invention.
  • Fig.l rails 1 are schematically indicated, which are connected to sleepers 2.
  • tongue rails 3 are provided in addition to the control rails 1, which can be brought into their respective positions via an actuator, which is schematically designated by 4.
  • Actuator 4 acts on slide rails 5 via slide rods 5.
  • Slide rods 5 are coupled to a hydraulic cylinder piston unit 7 via a central tap 6. Additional hydraulic cylinder-piston units 7 in the course of the rail can also be seen, each of which is coupled to slide rods and locking devices, which in turn are denoted schematically by 5.
  • FIG. 2 the type of mechanical connection of the hydraulic cylinder piston assemblies 7 to the slide rods 5 can be seen more clearly.
  • the cylinder-piston units 7 have a sliding block 8, in which a bolt 9 of the slide rod 5 engages. When the slide rod 5 is actuated, the sliding block and thus the piston of the hydraulic cylinder piston units shifted, whereby medium is pressed out of the respective work space.
  • the type of fixing of the hydraulic cylinder piston units 7 on the threshold 2 is illustrated in FIG. The determination is made via a stop plate 10, which is fixed on the threshold 2.
  • the hydraulic. Cylinder piston units 7 require relatively little space so that the plugging of the substructure is not impaired.
  • FIGS. 4 and 5 show a hydraulic cylinder piston unit 7 having a plunger 11.
  • the plungers 11 plunge into the respective work spaces 13 of the hydraulic cylinder piston units via seals 12, and when the plunger 11 is displaced in one of the directions of the double arrow 14, medium is pressed out of the corresponding work space 13.
  • the hydraulic connections lead to the external openings 15 in the respective work space 13.
  • the link block is again designated 8, via which the mechanical coupling takes place.
  • a rubber sleeve 16 is also provided.
  • FIG. 5 shows the device according to FIG. 4 in a top view.
  • identical cross sections are effective on both sides.
  • the cylinders of the hydraulic cylinder-piston unit are fixed via bolts 17 on the angle plate 10.
  • the working spaces 13 of the first hydraulic cylinder piston unit 7, which acts as a pump element, are connected via hydraulic lines 18 to corresponding working spaces 13 of adjacent hydraulic cylinder piston units 7, the connection being such that when the first hydraulic cylinder piston unit, as the pump element, is displaced all other hydraulic cylinder piston units 7 at the same meaningful shift are coupled.
  • the cross section must be influenced accordingly, for which purpose a corresponding sealing element can be arranged inside the cylinder to reduce the cross section.
  • the hydraulic lines 18 now contain a series of valves in order to keep the pressure constant under operating conditions and to be able to reliably detect impermissible situations.
  • a spring-loaded valve 19 is provided, which is acted upon by the hydraulic pressure in the lines 18. If the pressure in the hydraulic lines 18 drops below a limit value, the force of the spring of the spring-loaded valve 19 will move the spring-loaded valve 19 into the closed position, so that a further displacement of the hydraulic cylinder piston unit 7, which acts as a pump element, is prevented. In this case, the point machine is blocked and a corresponding fault message is issued.
  • a pressure accumulator 20 is also provided, which is connected to the respective hydraulic lines 18 via overflow valves or check valves 21.
  • the overflow valves or non-return valves are switched in such a way that when the pressure rises due to thermal expansion, fluid is pressed into the reservoir 20 and conversely, when the pressure drops slightly, fluid is pressed out of the hydraulic accumulator 20 into the lines 18.
  • the spring-loaded safety valves 19 only become effective in the event of a leak and a corresponding pressure drop in the accumulator 20.
  • FIG. 7 shows a simplified design of the hydraulic linkage.
  • the reference numerals from FIG. 6 have been retained in FIG.
  • a pressure accumulator 20 is connected to the entire hydraulic circuit, so that hydraulic fluid is returned to the accumulator 20 when a pressure relief valve 21 responds.
  • the preload valves or safety valves 19 are acted upon by the accumulator pressure of the piston accumulator. Overpressure can occur, especially if the temperature increases due to sunshine.
  • the piston chambers are in turn connected to one another in series, the pump element in turn being provided with the preload valves or safety valves 19. Both connecting lines are protected separately with pressure relief valves.
  • modified hydraulic cylinder piston units 7 are provided, each of which engages at the ends of the slide rods 5.
  • the modified cylinder-piston units 7 serve the same purpose as the design according to FIG. 1, but the functions for displacements to the left or to the right are separated from one another and no common plunger or piston is used for both working spaces finds.
  • FIG. 9 again shows a modified design of the hydraulic cylinder piston units.
  • the design is such that the same cross sections of a piston come into effect in the two work spaces 13.
  • the piston 22 is connected to a piston rod 23 and in the present case the ring surface is effective or acted upon.
  • the same components as in the embodiment according to FIG. 6 or 7 are used in this embodiment, and the same reference numerals have been used here again.
  • a blockage in the event of a drop in pressure of any cylinder-piston unit is brought about directly and all work spaces 13 are equipped with corresponding safety valves.
  • the individual adjustment paths of these closures can be roughly specified by determining the diameter ratios, and the poppet valves can be used to fine-tune the details by adjusting the path of the plunger by adjusting the cylinder base to the poppet valve.
  • the reference circuit of the push-open valves makes a new adjustment. A displacement of the piston due to leaks is thus remedied by re-adjustment after the changeover process has taken place.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vehicle Body Suspensions (AREA)
  • Selective Calling Equipment (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Massaging Devices (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Structure Of Transmissions (AREA)
  • Keying Circuit Devices (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Pens And Brushes (AREA)
  • Transmitters (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Reciprocating Pumps (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Power Steering Mechanism (AREA)
  • Confectionery (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

Le dispositif d'aiguillage présente une pluralité de dispositifs de réglage hydrauliques (7) accouplés entre eux et montés échelonnés dans le sens longitudinal du rail. Un groupe à cylindre et piston hydraulique (7), agissant à la manière d'un élément de pompe, est associé à un premier dispositif de réglage mécanique, les chambres motrices (13) de ce premier groupe hydraulique (7) étant reliées aux chambres motrices (13) des groupes hydrauliques (7) suivants, de manière à fournir un entraînement de même sens.
EP95921646A 1994-06-24 1995-06-21 Dispositif d'aiguillage Expired - Lifetime EP0715580B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9530154T SI0715580T1 (en) 1994-06-24 1995-06-21 Device for changing points

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AT14094 1994-06-24
AT140/94U 1994-06-24
AT758/95 1995-05-03
AT75895 1995-05-03
PCT/AT1995/000125 WO1996000160A1 (fr) 1994-06-24 1995-06-21 Dispositif d'aiguillage

Publications (2)

Publication Number Publication Date
EP0715580A1 true EP0715580A1 (fr) 1996-06-12
EP0715580B1 EP0715580B1 (fr) 1998-10-21

Family

ID=25591595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95921646A Expired - Lifetime EP0715580B1 (fr) 1994-06-24 1995-06-21 Dispositif d'aiguillage

Country Status (19)

Country Link
US (1) US5687935A (fr)
EP (1) EP0715580B1 (fr)
CN (1) CN1058670C (fr)
AT (1) ATE172416T1 (fr)
BG (1) BG62563B1 (fr)
CA (1) CA2170128C (fr)
CZ (1) CZ282833B6 (fr)
DE (1) DE59503982D1 (fr)
DK (1) DK0715580T3 (fr)
EE (1) EE9600027A (fr)
ES (1) ES2122623T3 (fr)
FI (1) FI113160B (fr)
HU (1) HU220656B1 (fr)
NO (1) NO960729D0 (fr)
PL (1) PL177783B1 (fr)
RO (1) RO117012B1 (fr)
RU (1) RU2128746C1 (fr)
SK (1) SK14996A3 (fr)
WO (1) WO1996000160A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403462B (de) * 1995-05-03 1998-02-25 Vae Ag Einrichtung zum umstellen von weichen
GB9524541D0 (en) * 1995-11-30 1996-01-31 Westinghouse Brake & Signal Point drive unit
AT403463B (de) * 1995-12-14 1998-02-25 Vae Ag Einrichtung zum sichern der endlagen von weichen- und kreuzungsstellantrieben
DE19631174A1 (de) * 1996-08-05 1998-02-12 Butzbacher Weichenbau Gmbh Stelleinrichtung
IT1298019B1 (it) * 1997-10-22 1999-12-20 Sasib Railway Spa Cassa di manovra per scambi ferroviari, ferrotranviari, o simili.
AT407369B (de) * 1998-04-07 2001-02-26 Vae Ag Einrichtung zum umstellen der beweglichen teile von schienenweichen oder -kreuzungen
US6164602A (en) * 1999-02-17 2000-12-26 Abc Rail Products Corporation Railroad frog assembly with multi-position holdback
AU4384699A (en) * 1999-06-01 2000-12-18 Gabor Horvath Driving gear for points
AT5706U1 (de) 2001-05-07 2002-10-25 Vae Eisenbahnsysteme Gmbh Verfahren zum einbauen von weichen in geleise sowie weiche zur durchführung dieses verfahrens
AT5757U1 (de) * 2001-07-31 2002-11-25 Vae Eisenbahnsysteme Gmbh Einrichtung zum umstellen von weichen
ITMI20061647A1 (it) * 2006-08-28 2008-02-29 Gen Electric Motore idraulico per scambi ferroviari
ES2373806T3 (es) * 2008-11-27 2012-02-08 Alstom Transport Sa Dispositivo de desplazamiento de las puntas de las agujas de cambio de vía férrea, especialmente de las de alta velocidad y procedimiento de desplazamiento de las agujas de cambio de vía férrea.
EP2418135B1 (fr) * 2010-07-22 2013-04-17 ALSTOM Transport SA Méthode et unité de commande hydraulique pour un dispositif d'actionnement hydraulique pour les entraînements des aiguillages ferroviaires
CN102582663B (zh) * 2011-11-16 2015-03-18 北京国铁路阳技术有限公司 一种电动液压转辙机用同步传动机构
CN102582662B (zh) * 2011-11-16 2015-06-24 天津辉煌路阳科技有限公司 一种电动液压转辙机用液压总成
CN102602427B (zh) * 2011-11-16 2015-06-24 天津辉煌路阳科技有限公司 电动液压转辙机
JP6243258B2 (ja) * 2014-02-28 2017-12-06 株式会社京三製作所 接着照査器およびｉｄ設定装置
CN115162072A (zh) * 2022-07-21 2022-10-11 中铁六局集团有限公司 采用液压同步控制设备进行道岔横移的装置及施工方法

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FR586627A (fr) * 1924-09-26 1925-03-31 Signaux Entr Electriques Dispositif de manoeuvre des aiguilles de chemin de fer avec contrôle de la positionde ces aiguilles
US2367716A (en) * 1943-04-17 1945-01-23 Union Switch & Signal Co Apparatus for controlling railway switches
DE1005112B (de) * 1955-01-25 1957-03-28 Fritz Gruender Maschinenfabrik Weichenstellanlage, insbesondere fuer Grubenbahnen
DE1105450B (de) * 1956-07-26 1961-04-27 Hans Joachim Von Hippel Dr Ing Elektrohydraulisches Verstellgeraet, insbesondere Weichenstellvorrichtung
DE2051882C2 (de) * 1970-10-22 1975-03-06 Elektro-Thermit Gmbh, 1000 Berlin Zungenweiche mit zwei Zungenpaaren aus Gleisabschnitten des Stamm- und des Zweiggleises
DE2144564A1 (de) * 1971-09-06 1973-03-15 Siemens Ag Weichenstellsystem fuer eisenbahnanlagen mit schlankweichen
FR2196619A5 (fr) * 1972-08-17 1974-03-15 Sncf
FR2280537A2 (fr) * 1974-08-02 1976-02-27 Sncf Dispositif hydraulique de manoeuvre d'aiguillages, a commande electrique
IN147860B (fr) * 1977-02-03 1980-07-26 Westinghouse Brake & Signal
DE2817782C3 (de) * 1978-04-22 1981-02-19 Elektro-Thermit Gmbh, 1000 Berlin Zungenweiche
IT1242226B (it) * 1990-10-10 1994-03-03 Sasib Spa Dispositivo di manovra per deviatoi ferroviari, in particolare per linee ad alta velocita'

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
PL177783B1 (pl) 2000-01-31
FI113160B (fi) 2004-03-15
DE59503982D1 (de) 1998-11-26
RU2128746C1 (ru) 1999-04-10
PL312937A1 (en) 1996-05-27
FI960830A0 (fi) 1996-02-23
CZ282833B6 (cs) 1997-10-15
FI960830L (fi) 1996-02-23
HU220656B1 (hu) 2002-03-28
HUT74373A (en) 1996-12-30
CA2170128A1 (fr) 1996-01-04
ATE172416T1 (de) 1998-11-15
US5687935A (en) 1997-11-18
BG62563B1 (bg) 2000-02-29
CA2170128C (fr) 1999-05-11
EP0715580B1 (fr) 1998-10-21
HU9600280D0 (en) 1996-04-29
RO117012B1 (ro) 2001-09-28
WO1996000160A1 (fr) 1996-01-04
CN1058670C (zh) 2000-11-22
NO960729L (no) 1996-02-23
SK14996A3 (en) 1996-06-05
EE9600027A (et) 1996-06-17
BG100384A (bg) 1996-10-31
DK0715580T3 (da) 1999-06-28
ES2122623T3 (es) 1998-12-16
CN1130892A (zh) 1996-09-11
CZ52696A3 (en) 1996-06-12
NO960729D0 (no) 1996-02-23

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