EP1349765A1 - Einrichtung zum verstellen und verriegeln von beweglichen weichenteilen - Google Patents
Einrichtung zum verstellen und verriegeln von beweglichen weichenteilenInfo
- Publication number
- EP1349765A1 EP1349765A1 EP02729394A EP02729394A EP1349765A1 EP 1349765 A1 EP1349765 A1 EP 1349765A1 EP 02729394 A EP02729394 A EP 02729394A EP 02729394 A EP02729394 A EP 02729394A EP 1349765 A1 EP1349765 A1 EP 1349765A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- locking
- coupling
- rod
- locking members
- 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
Links
- 230000008878 coupling Effects 0.000 claims abstract description 26
- 238000010168 coupling process Methods 0.000 claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 claims abstract description 26
- 238000013461 design Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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 hydraulic piston formed by a rod, which cooperates via coupling or locking members with an axially displaceable sleeve for receiving the radially displaceable coupling or locking members, the Slidable sleeve is coupled to the movable switch part, and with an outer tube, at least partially overlapping the sleeve and the rod.
- EP 0 603 156 AI shows and describes an end position securing of movable turnout parts, and in particular a turnout lock, in which a bolt or a rod is guided in a tube, the rod and the tube being held axially displaceably in an outer tube.
- the tube has openings for locking members which can be displaced in the radial direction and which were formed in the known formation of balls or rollers.
- the jacket of the rod also has corresponding recesses at predetermined axial distances, so that it is possible to move these locking elements either by moving them relative to the locking element tube into an external locking position, in which they interact with stops in the outer tube, or inwards move so that the relative displacement of the tube and rod in the axial • direction is made possible.
- the tube carrying the locking members was coupled to the switch parts to be adjusted.
- a locking device was proposed in WO 98/54041, in which a hydraulic unit is coupled, but the locking unit itself is not part of the hydraulic adjusting element and is guided in a separate, sealed housing.
- the sleeve carrying the locking elements or the tube carrying the locking elements must be taken along from the rod accordingly via a predetermined axial displacement path, the displacement forces being exerted by the Coupling or locking members formed by balls must be added to move the sleeve.
- mount ring segments on the balls so that in the locking position the forces can no longer be absorbed as line point contact of the ball but as forces acting on the ring surfaces of the locking segments. In the locking position, this ensured that the large locking forces of the order of 100,000 Newtons can be safely absorbed on the corresponding ring surfaces.
- AT 403 683 B and AT 406 038 B show different configurations of a changeover aid in which a resilient support of the adjustment movement was made possible over a partial area 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 displaced by the force of the spring over a part of the displacement path.
- 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 at the outset, which has a particularly compact construction and ensures improved wear resistance.
- a fixed standing pipe two relatively displaceable parts, namely at least one pipe and a rod, are guided and the movable switch parts are coupled to the pipe
- all elements should be able to be integrated within the outer pipe, furthermore the possibility of continuous lubrication of those subject to wear Sharing should be achieved.
- the coupling links, and in particular coupling links formed by balls are to be efficiently secured against overload.
- the invention essentially consists in the fact that a hydraulic line opens at an end face of the sleeve facing away from the coupling point for the movable switch part in the outer tube.
- the outer tube can be secured entirely as a cylinder of a hydraulic drive, both the inner rod and the rod surrounding the giving sleeve, which carries the coupling members and the locking members, can be acted upon with fluid.
- the annular surface of the sleeve is also pressurized accordingly, with only a small part of the changeover force having an effect on the end face of the inner rod and a comparatively substantially higher part of the displacement force acting directly on the end face of the inner tube ,
- forces are no longer exclusively effective which are transmitted from the inner rod to the tube via the coupling members or balls, but additional forces are introduced directly into the tube, so that the Balls or coupling or locking members are relieved accordingly.
- one or more locking levels can be provided in each changeover unit.
- Units of this type can be connected directly to one another for a changeover device of a movable core, the displaceable inner tubes being connected to a corresponding coupling device. Overall, it is possible in this case to implement a very rigid, low-vibration actuating device.
- the design according to the invention 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 interact with locking members formed by ring segments.
- the balls are relieved accordingly during the relocating process, the corresponding surface contact, as can be formed by ring segments which plunge into corresponding recesses in the outer tube, can be ensured in the locking position.
- a switching or monitoring element can preferably be accommodated in the floor of the cylinder space are to be taken into account in the design according to the invention that this bottom of the cylinder space, in which both the rod and the sleeve can be moved as a piston, is acted upon by the pressure medium.
- a correspondingly high working pressure can therefore, in principle, already cause a displacement of the actuator in the base of the cylinder in conventional actuators, as a result of which incorrect indications cannot be excluded.
- a spring that acts counter to the direction of displacement of the actuator of the switch or switching valve can be dimensioned sufficiently strong to withstand the fluid pressure in the work area. In such cases, however, the actuation of the switch or changeover valve in the end position would require high forces.
- the design is therefore such that a plunger is axially displaceably mounted in the bottom of the working cylinder of the rod and the sleeve carrying the hydraulic connection, this plunger preferably being designed as a differential piston.
- the plunger is designed as a differential piston, adjustment movements of the plunger are prevented when the fluid is under pressure in the working area and the actuating forces required for the safe display of the end position are reduced accordingly.
- the design is advantageously made such that the plunger interacts with an electrical switch and / or a switching valve.
- FIG. 1 shows a cross section through a device according to the invention, this device being designed for the adjustment of a movable heart
- FIG. 2 shows an enlarged representation of half of the device according to FIG. 1 in section
- FIG. 3 shows an enlarged detail the valve arrangement in the bottom of the working cylinder.
- Fig.l 1 denotes a movable heart, which is optionally moved in contact with two wing rails 2 should be and should be locked in the respective system position.
- the device for adjusting the position of the frog 1 and for locking the respective end position is designated by 3 and comprises an outer tube 4, an inner tube 5 guided in this tube and a rod 6.
- the inner tube 5 has openings 7 for receiving locking or coupling members 8, the inner rod 6 having a corresponding stop shoulder 9 for coupling with the coupling and locking member 8.
- the device 3 is fixed at the ends schematically indicated by 10.
- a hydraulic connection 11 can also be seen, which opens into a working space 12, the corresponding connections being designed symmetrically in the illustration according to FIG.
- the centerpiece 1 is shifted into its right end position, the locking members 8 engaging in corresponding locking grooves of the outer tube 4 by running onto the corresponding full cross section of the rod 6, whereby the inner tube 5 against another Shift is secured and the centerpiece 1 is held securely in the system position.
- the coupling and locking members are formed by internal balls 13 and ring segments 14 that overlap the balls, so that in the locking position a surface contact of the ring segments with the flanks of the Groove 15 is made possible.
- the pressure medium supplied via the connections 11 in the working space 12 acts upon the adjustment movement in the direction of the arrow 16 not only on the end face 17 of the rod 6 but also on the end face 18 of the inner tube 5 which is designed as an annular surface.
- 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, with the 2, an additional flange tube 22 is additionally provided over a partial area of the axial length of the outer tube 4, which can be equipped with appropriate spoilage to ensure secure anchoring and a sealing connection of the outer tube 4 to the base 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 annular surface of which on the spring chamber side is acted upon accordingly by the fluid exiting into the spring chamber 24 via the working chamber 12 and the axial bore 23, so that the plunger 20 is in its extended position also remains when a correspondingly high pressure rises in the work space 12.
- the plunger 20 in turn interacts with the switch 21, with 27 corresponding vent holes being designated.
- the inner tube 5 is slidably guided in the outer tube 4 with the interposition of guide elements 28, the outer tube being tensioned against the floor 19 of the working space 12 via the flange tube 22 and the flange 29 additionally screwed thereto.
- 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 is provided between the inner outer tube 33 and the outer outer tube 34.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Lock And Its Accessories (AREA)
- Helmets And Other Head Coverings (AREA)
- Fluid-Damping Devices (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Chairs Characterized By Structure (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Railway Tracks (AREA)
- Seats For Vehicles (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Claims
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 (de) | 2001-01-11 | 2002-01-11 | Einrichtung zum verstellen und verriegeln von beweglichen weichenteilen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1349765A1 true EP1349765A1 (de) | 2003-10-08 |
| EP1349765B1 EP1349765B1 (de) | 2006-08-09 |
Family
ID=3558564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02729394A Expired - Lifetime EP1349765B1 (de) | 2001-01-11 | 2002-01-11 | Einrichtung zum verstellen und verriegeln von beweglichen weichenteilen |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US6945156B2 (de) |
| EP (1) | EP1349765B1 (de) |
| JP (1) | JP3862655B2 (de) |
| CN (1) | CN1224547C (de) |
| AT (1) | ATE335642T1 (de) |
| BR (1) | BR0206360A (de) |
| CA (1) | CA2434391C (de) |
| CZ (1) | CZ293392B6 (de) |
| DE (1) | DE50207782D1 (de) |
| DK (1) | DK1349765T3 (de) |
| ES (1) | ES2268026T3 (de) |
| HU (1) | HU228725B1 (de) |
| PL (1) | PL201062B1 (de) |
| PT (1) | PT1349765E (de) |
| WO (1) | WO2002055360A1 (de) |
Families Citing this family (3)
| 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)
| 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 |
-
2002
- 2002-01-11 DK DK02729394T patent/DK1349765T3/da active
- 2002-01-11 WO PCT/AT2002/000007 patent/WO2002055360A1/de not_active Ceased
- 2002-01-11 DE DE50207782T patent/DE50207782D1/de not_active Expired - Lifetime
- 2002-01-11 ES ES02729394T patent/ES2268026T3/es not_active Expired - Lifetime
- 2002-01-11 CA CA2434391A patent/CA2434391C/en not_active Expired - Fee Related
- 2002-01-11 CN CNB028036077A patent/CN1224547C/zh not_active Expired - Fee Related
- 2002-01-11 AT AT02729394T patent/ATE335642T1/de active
- 2002-01-11 EP EP02729394A patent/EP1349765B1/de not_active Expired - Lifetime
- 2002-01-11 PL PL368865A patent/PL201062B1/pl not_active IP Right Cessation
- 2002-01-11 PT PT02729394T patent/PT1349765E/pt unknown
- 2002-01-11 JP JP2002556057A patent/JP3862655B2/ja not_active Expired - Fee Related
- 2002-01-11 US US10/250,834 patent/US6945156B2/en not_active Expired - Fee Related
- 2002-01-11 BR BR0206360-3A patent/BR0206360A/pt active Search and Examination
- 2002-01-11 HU HU0401158A patent/HU228725B1/hu not_active IP Right Cessation
- 2002-01-11 CZ CZ20031763A patent/CZ293392B6/cs not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02055360A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| PL368865A1 (en) | 2005-04-04 |
| CN1484595A (zh) | 2004-03-24 |
| ATE335642T1 (de) | 2006-09-15 |
| CN1224547C (zh) | 2005-10-26 |
| CZ293392B6 (cs) | 2004-04-14 |
| ES2268026T3 (es) | 2007-03-16 |
| CA2434391A1 (en) | 2002-07-18 |
| WO2002055360A1 (de) | 2002-07-18 |
| DK1349765T3 (da) | 2006-12-11 |
| EP1349765B1 (de) | 2006-08-09 |
| HU228725B1 (en) | 2013-05-28 |
| PT1349765E (pt) | 2006-12-29 |
| HUP0401158A2 (en) | 2004-10-28 |
| US20040065193A1 (en) | 2004-04-08 |
| DE50207782D1 (de) | 2006-09-21 |
| BR0206360A (pt) | 2003-12-23 |
| PL201062B1 (pl) | 2009-03-31 |
| US6945156B2 (en) | 2005-09-20 |
| JP3862655B2 (ja) | 2006-12-27 |
| CA2434391C (en) | 2011-05-24 |
| JP2004516993A (ja) | 2004-06-10 |
| CZ20031763A3 (cs) | 2003-11-12 |
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