EP1022207A1 - Weichenantrieb - Google Patents
Weichenantrieb Download PDFInfo
- Publication number
- EP1022207A1 EP1022207A1 EP99440375A EP99440375A EP1022207A1 EP 1022207 A1 EP1022207 A1 EP 1022207A1 EP 99440375 A EP99440375 A EP 99440375A EP 99440375 A EP99440375 A EP 99440375A EP 1022207 A1 EP1022207 A1 EP 1022207A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch
- machine according
- telescopic rod
- rod
- switch machine
- 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
Images
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
-
- 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
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
Definitions
- the invention relates to a point machine according to the preamble of claim 1.
- Such a point machine is known from DE-A1-38 25 182.
- the known Switch drive has a spring drive in addition to the hydraulic linear drive, which consists of coil springs and a linkage linked to the linear drive.
- the linkage is designed so that while the first half of the Travel the springs are tensioned. Be on the second half of the travel range the springs relaxed again.
- the spring drive thus enables the hydraulic Switch off the linear drive as soon as half of the travel range has been overcome has been.
- the one required to cover the second half of the travel range Energy is taken from the preloaded springs.
- the object of the invention is to provide a point machine in which a Disruption has as little impact as possible on railway operations.
- a point machine according to claim 1.
- resetting means provided that when an actuation at any point along the Travel is inhibited, a return of the railway switch to its original position with the help of the stored potential energy.
- the switch tongues return to their original position.
- the cause of such an inhibition is, for example, the failure of the Switch motor or an interruption in the power supply during the setting process into consideration.
- the switch tongues then remain somewhere between the two possible end positions.
- Another cause of inhibition can be a (Gravel) stone or a lump of ice between the stock rail and the switch tongue is advised. The switch tongue jams the stone or lump of ice and does not reach its end position.
- Fig. 1 shows a path-speed diagram for a rail vehicle SFZ, which approaches a conventional switch W.
- the rail vehicle first approaches the switch W at the permissible maximum speed v max . It is now assumed that the switch W is changed over.
- the braking curve of the SFZ rail vehicle must be calculated so that it ends before the turnout begins, meaning that the rail vehicle comes to a stop before the turnout.
- the rail vehicle begins braking at location O1. If there is no malfunction during the positioning process, the switch has already been changed over and locked in the new end position when the SFZ rail vehicle has reached the O2 location. Since the switch is no longer blocked, the rail vehicle accelerates again until it has reached the speed v max provided for this section of the route.
- a closely following rail vehicle, not shown in FIG. 1, must also brake in order not to fall below the absolute braking distance to the SFZ rail vehicle. This results in a considerable impediment to operation, especially when the route is heavily used.
- the braking of the SFZ rail vehicle is only necessary because it cannot be safely assumed that the actuating process has been completed within a defined period of time.
- the invention remedies this, since it is guaranteed that the switch will reach its starting position even if a fault occurs with the help of stored potential energy.
- a longer-lasting intermediate layer of the switch tongues is excluded according to the invention.
- the configuration of the point machine according to the invention thus leads to shorter travel times and to a higher capacity of railway lines.
- the point machine ensures for the fact that the starting position is taken up again.
- the rail vehicle is therefore routed to a route other than the one originally intended. This poses Of course, this also affects the operation; is a security risk but not connected to it. It is only necessary to ensure that the rail vehicle quickly recognizes the unexpected operating situation and immediately his Adapts braking curve to it. Since there are generally no faults, predominate the reduction in travel time and the gain in route capacity by far the operational impairment, which are possible in rare individual cases.
- the switch drive according to the invention has the energy required for resetting the switch that is taken from a store for potential energy is the resetting guaranteed even when the turnout power supply is interrupted. Resetting is only not possible if the setting process is inhibited and, in addition, another fault occurs during the reset, the Switch tongues can not return to their starting position. Such a meeting rare errors, as is common in railway signaling, not accepted because the probability of this is extremely low.
- the storage means during As much potential energy can be supplied to the actuating process as for resetting the Railway switch is needed.
- this has the advantage that there is always enough energy is to effect the deferral.
- a mechanical implementation of the point machine according to the invention is the subject of claims 3 to 5; a hydraulic implementation subject of the claims 6 to 10.
- Fig. 2 shows a top view of a not-to-scale detail from a top view Soft W with switch tongues WZ.
- the switch tongues WZ are with an adjusting rod SS connected, which merges into a rack ZS.
- the rack ZS is in Movable in the longitudinal direction by rotating the pinion RI.
- the pinion itself is from driven by a motor M.
- a guide FG for a roller RO is attached at right angles to the rack ZS, which both follow the longitudinal movement of the rack.
- a spring F one end of which is at the foot of the guide FG and other end is attached to the roller RO.
- On both sides about the leadership protruding parts of the roller lie on the legs of two guide bodies D1 and D2 on.
- the guide bodies D1 and D2 are also slidably mounted.
- Guide pins FS1 and FS2 which are in suitably shaped recesses in the guide body Intervene D1 and D2.
- the recesses are arranged so that the guide body can make a movement parallel to the movement of the rack.
- the range of motion is limited to the maximum range of motion the rack.
- Fig. 2 represents the invention Point machine immediately before the start of an actuation process.
- the rack ZS is connected to it Control rod SS moved in the direction of arrow P1.
- the leadership FG with the roller RO which is slidably mounted therein, carries out this movement.
- the roller RO additionally moves in the direction of arrow P2.
- the spring F is tensioned.
- the guide body D1 and D2 can by the Do not use spring F to exert force exerted on roller RO, as the recesses the guide body D1 and D2 already touch the guide pins FS1 and FS2.
- a timer is therefore preferably provided, which current and the motor making it momentary as soon as a given one begins after the setting process Period of time has passed. If the fault is a failure of the engine or If the power supply is interrupted, the switch is reset with the help of the potential energy stored in the spring immediately.
- the role RO can also be used, for example, as a rod with another circular cross section.
- the shape of the guide body D1 and D2 is arbitrary in a wide range and can also include curved surfaces.
- the coil spring shown in FIGS. 2 to 4 stands here only for one means for storing potential energy. All types of springs and gas springs are conceivable or hydraulic pressure accumulators. Also an energy storage using the Gravitation is possible. Preferably, the energy is the storage means - as in the embodiment described above - supplied during the adjustment process. Alternatively, however, energy can also be stored in the storage means at other times be fed.
- FIG. 5 shows an embodiment for a point machine according to the invention, in which the restoring means are essentially hydraulic.
- a turnout W with turnout tongues WZ can be seen.
- An adjusting rod SS provides a connection between the switch tongues WZ and a hydraulically operated Telescopic pole TS.
- the other side of the telescopic rod TS is connected with a push rod SCH, which can be moved by a drive unit AE known per se is.
- the chambers in the telescopic rod TS on both sides of the piston K are connected to a four-way valve V3 via hydraulic lines. If the four-way valve V3 is closed, the piston K is in the telescopic rod TS not movable. Consequently, a movement exerted by the drive unit AE via the push rod SCH, the piston K and the hydraulic fluid onto the telescopic rod TS transmit and eventually lead to the switching of the switch tongues WZ.
- the switch tongues reach WZ not their intended end position.
- the telescopic rod is now in this case so controlled by a valve control that the piston K in the telescopic rod also is moved in the direction of arrow P5.
- the control rod SS connected to the telescopic rod TS is returned to it Starting position moved.
- the switch blades WZ return to their starting position back.
- a hydraulic device known per se is symbolic at the top in FIG. 5 shown a motor M, a hydraulic pump P driven by it and a hydraulic tank HB.
- the hydraulic pump P pumps hydraulic fluid from the hydraulic tank HB into a hydraulic accumulator HS.
- a check valve RV prevents hydraulic fluid from the hydraulic accumulator HS in the hydraulic reservoir runs back.
- a pressure relief valve DBV ensures that the permissible maximum pressure is not exceeded.
- Fig. 5 In the middle of Fig. 5 are two bars R1 and R2 for checking the tongue end position shown schematically. These bars, known as such, check whether the switch tongues have actually reached their end position.
- the exact execution of the latch is not essential here, since they can be mechanically implemented in a variety of ways.
- One possibility, for example, is to have each switch tongue with its own To connect the test rod, which leads back to the point machine. Only if both Switch tongues reach an end position, the two tester rods come into one Position in which the recesses provided in the test rods correspond and one of the bolts can engage in both recesses. By intervening in the recesses there is a movement of the bolt, which becomes mechanical Control of valves can be used.
- valve V3 which is actuated electromagnetically.
- the electromagnet In the normal state the electromagnet is energized and the valve V3 is closed. If the power supply is interrupted, the electromagnet is de-energized and that Valve V3 automatically falls open. So if the inhibition on one Interruption of the power supply decreases, it is always ensured that the Valve V3 is open.
- the valve V3 from a timer UHR controlled. The time switch is started at the beginning of each setting process and reset on successful completion of an actuating process. Runs after the start an actuating process a specified period of time, for. B. 15 seconds, without the timer has been reset, the valve V3 automatically falls into the open state.
- the drive units AE usually used are mostly in the control monitored for their running time and the drive unit automatically switched off, if a specified period of time has passed since the start of the actuating process.
- the timer used here can of course control the valve V3 Timer CLOCK can be merged.
- this essentially hydraulic implementation can also be carried out in diverse ways Way is changeable.
- the telescopic rod TS cannot only in the event of an inhibition, but also in principle to set the switch tongues be used.
- the push rod SCH is then fixed to the housing of the point machine attached. In the two chambers on both sides of the piston K are to provide additional valves through which hydraulic fluid can be supplied or removed.
- the hydraulic device must be designed so that the Switch is effected even when the drive unit AE is inhibited does not switch off and continues to exert force on the push rod SCH.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Inert Electrodes (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Railway Tracks (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims (8)
- Weichenantrieb für eine Eisenbahnweiche (W) mit einem Speichermittel (F; HS) zum Speichern potentieller Energie,
dadurch gekennzeichnet,
daß Rückstellmittel (RO, D1, D2, FG; TS,V1, V2, V3, H1, H2) vorhanden sind, die, wenn ein Stellvorgang an beliebiger Stelle entlang des Stellweges gehemmt wird, ein Zurückstellen der Eisenbahnweiche in ihre Ausgangslage mit Hilfe der gespeicherten potentiellen Energie bewirken. - Weichenantrieb nach Anspruch 1, bei dem dem Speichermittel während des Stellvorgangs soviel potentielle Energie zuführbar ist, wie für das Zurückstellen der Eisenbahnweiche benötigt wird.
- Weichenantrieb nach einem der vorhergehenden Ansprüche, bei dem das Speichermittel eine Feder (F) ist und bei dem Spannmittel (D1, D2, RO, FG) vorgesehen sind, die so ausgelegt sind, daß die Feder über den gesamten Verlauf eines Stellvorgangs zunehmend gespannt wird und nach Abschluß eines erfolgreichen Stellvorgangs entspannt wird.
- Weichenantrieb nach Anspruch 3, bei dem die Spannmittel einen zwei Schenkel aufweisenden Führungskörper (D1, D2) und einen Stab (RO) umfassen, der auf den Schenkeln aufliegt und so mit einer Stellstange (SS) der Eisenbahnweiche und der Feder verbunden ist, daß bei einer Bewegung der Stellstange sich der Stab auf den Schenkeln des Führungskörpers auf- oder abbewegt und dabei den Spannungszustand der Feder verändert, und bei dem der Führungskörper so verschiebbar angeordnet ist, daß nach Abschluß eines erfolgreichen Stellvorgangs der Führungskörper ebenfalls eine neue Endlage erreicht.
- Weichenantrieb nach einem der Ansprüche 1 oder 2, bei dem die Rückstellmittel eine hydraulisch betätigbare Teleskopstange (TS), die mit einer Stellstange (SS) verbunden ist, und eine Ventilsteuerung (V1, V2, V3) zur Steuerung der Länge der Teleskopstange umfassen, wobei durch die Ventilsteuerung eine Veränderung der Länge der Teleskopstange herbeiführbar ist, wenn ein Stellvorgang an beliebiger Stelle entlang des Stellweges gehemmt wird.
- Weichenantrieb nach Anspruch 5, bei dem die Ventilsteuerung mechanisch mit Riegeln (R1, R2) zum Prüfen der Zungenendlage verbunden ist.
- Weichenantrieb nach einem der Ansprüche 5 oder 6, bei dem die Teleskopstange mit einer Antriebseinheit (AE) verbunden ist, und bei dem die Ventilsteuerung so ausgelegt ist, daß nur bei einer Hemmung des Stellvorgangs die Länge der Teleskopstange verändert wird.
- Weichenantrieb nach einem der vorhergehenden Ansprüche, der eine Zeitschaltuhr (UHR) umfaßt, die ein Wirksamwerden der Rückstellmittel erst nach Ablauf einer vorbestimmbaren Zeitspanne nach Beginn des Stellvorgangs zuläßt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19901567 | 1999-01-16 | ||
DE19901567A DE19901567A1 (de) | 1999-01-16 | 1999-01-16 | Weichenantrieb |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1022207A1 true EP1022207A1 (de) | 2000-07-26 |
EP1022207B1 EP1022207B1 (de) | 2004-02-04 |
Family
ID=7894484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99440375A Expired - Lifetime EP1022207B1 (de) | 1999-01-16 | 1999-12-27 | Weichenantrieb |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1022207B1 (de) |
AT (1) | ATE258864T1 (de) |
DE (2) | DE19901567A1 (de) |
ES (1) | ES2214001T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011003601A1 (de) | 2011-02-03 | 2012-08-09 | Siemens Aktiengesellschaft | Weichenantriebssystem und Verfahren zum Umstellen einer Weiche |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3363097A (en) * | 1965-05-10 | 1968-01-09 | Abex Corp | Railway switch mechanism |
BE892978R (fr) * | 1982-03-18 | 1982-08-16 | Cogifer Sa | Dispositif de manoeuvre d'aiguilles de voie ferree |
EP0064249A1 (de) * | 1981-05-04 | 1982-11-10 | Abex Corporation | Stellantrieb für Schienenweichen |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1010555B (de) * | 1955-02-24 | 1957-06-19 | Siemens Ag | Weichenantrieb mit Zungenueberpruefung |
DE954609C (de) * | 1955-03-10 | 1956-12-20 | Lorenz C Ag | Einrichtung zur Sicherstellung der Endlage von drehstromgetriebenen Weichen |
DE1124538B (de) * | 1958-01-27 | 1962-03-01 | Licentia Gmbh | Elektromotorischer Weichenstellantrieb |
DE1455419A1 (de) * | 1963-09-13 | 1969-04-30 | Saab Ab | Weichenstell-Vorrichtung |
DE2744969B2 (de) * | 1977-10-06 | 1980-03-20 | Fabeg Gmbh, 7518 Bretten | Hydraulischer Weichenantrieb |
DE3825182C2 (de) * | 1988-07-25 | 1997-05-22 | Tiefenbach Gmbh | Weichenantrieb |
-
1999
- 1999-01-16 DE DE19901567A patent/DE19901567A1/de not_active Ceased
- 1999-12-27 EP EP99440375A patent/EP1022207B1/de not_active Expired - Lifetime
- 1999-12-27 DE DE59908463T patent/DE59908463D1/de not_active Expired - Lifetime
- 1999-12-27 AT AT99440375T patent/ATE258864T1/de not_active IP Right Cessation
- 1999-12-27 ES ES99440375T patent/ES2214001T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3363097A (en) * | 1965-05-10 | 1968-01-09 | Abex Corp | Railway switch mechanism |
EP0064249A1 (de) * | 1981-05-04 | 1982-11-10 | Abex Corporation | Stellantrieb für Schienenweichen |
BE892978R (fr) * | 1982-03-18 | 1982-08-16 | Cogifer Sa | Dispositif de manoeuvre d'aiguilles de voie ferree |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011003601A1 (de) | 2011-02-03 | 2012-08-09 | Siemens Aktiengesellschaft | Weichenantriebssystem und Verfahren zum Umstellen einer Weiche |
WO2012104189A1 (de) | 2011-02-03 | 2012-08-09 | Siemens Aktiengesellschaft | Weichenantriebssystem und verfahren zum umstellen einer weiche |
Also Published As
Publication number | Publication date |
---|---|
EP1022207B1 (de) | 2004-02-04 |
ES2214001T3 (es) | 2004-09-01 |
DE59908463D1 (de) | 2004-03-11 |
DE19901567A1 (de) | 2000-07-27 |
ATE258864T1 (de) | 2004-02-15 |
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