EP2412602B1 - Verriegelungsvorrichtung für Bahnweichen - Google Patents

Verriegelungsvorrichtung für Bahnweichen Download PDF

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Publication number
EP2412602B1
EP2412602B1 EP20110174587 EP11174587A EP2412602B1 EP 2412602 B1 EP2412602 B1 EP 2412602B1 EP 20110174587 EP20110174587 EP 20110174587 EP 11174587 A EP11174587 A EP 11174587A EP 2412602 B1 EP2412602 B1 EP 2412602B1
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EP
European Patent Office
Prior art keywords
screw body
hammer head
screw
hollow
needle
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.)
Active
Application number
EP20110174587
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English (en)
French (fr)
Other versions
EP2412602A1 (de
Inventor
Stéphane Vasseur
Christian Le Guen
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.)
Alstom Transport SA
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Alstom Transport SA
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Filing date
Publication date
Application filed by Alstom Transport SA filed Critical Alstom Transport SA
Publication of EP2412602A1 publication Critical patent/EP2412602A1/de
Application granted granted Critical
Publication of EP2412602B1 publication Critical patent/EP2412602B1/de
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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

Definitions

  • the present invention relates to a rail switch locking device, in particular of the type of those concerned by the NF F 52-162 standard.
  • VCC Cargo Lock Bush
  • pairs of locks ensure the operation and locking of the closed needle against its counter-needle (that is to say the corresponding rail portion), the maneuver and the setting of the needle in the open position.
  • the detection of the open needle blade correctly spaced from its counter-needle, the detection of the position of the blade properly closed against its counter-needle, and the detection of the closed blade lock in the locking position are performed by a controller lock.
  • Each lock generally comprises a frame protected by a cover, a locking arm associated with a “hand” (described below).
  • the assembly usually called “C-hand”, works in accordance with a lock assembly and a lock controller, also called a lock detector.
  • This lock can be broken down into two parts: a fixed part linked to the frame, which is secured to the counter-needle and which is intended to be fixed outside the track, and a movable part, which is driven by a control member common to the two locks and which is mechanically linked to the needle, this moving part ensuring the application of the needle against the counter-needle, its locking on the fixed part, and the operation of the controller. It also allows longitudinal movement of the needle relative to its counter-needle under the effect of various stresses.
  • These locks incorporate a hollow bolt comprising a screw equipped with a so-called “hammer” head, a self-chamfered or secured nut and at least one washer interposed between screw and nut.
  • the screw is pierced axially with a through orifice, allowing the passage of a piston, usually made of bronze, inside said free orifice in translation. It will be referred to hereinafter as hollow screw.
  • This hammerhead bolt performs several functions: it allows to position and fix the frame against the core of the counter-needle, and it allows the free movement of the piston mentioned above which must be supported on the needle blade to maneuver the controller located on the other side of the counter-needle.
  • This hollow bolt is subject to various mechanical stresses, including clamping forces, and vibrations created by the passage of railway vehicles on the tracks. These stresses may eventually cause the screw to break, most often located in the area where the screw is connected to its hammer head, at the level of which the mechanical stresses are concentrated, because of the large sectional change between the body of the screw. the screw on the one hand, and the hammer head on the other.
  • the object of the invention is therefore to remedy at least part of this disadvantage. Its purpose is to improve the design of hollow bolts used in locks, in particular to reduce the risk of breakage thereof.
  • the subject of the invention is a railway switch locking device comprising a fixed part intended to be secured to a counter-needle rail and a part movable relative to said fixed part and intended to be fixed on the corresponding needle.
  • the movable part allows the application of the needle on the counter-needle rail and its locking by means of a locking arm intended to be driven by an actuating member of the switch.
  • the stationary portion includes a hollow screw bolt in which a piston to be actuated by the needle slides to control the controller of the locking device.
  • the hollow screw according to the invention comprises a screw body and a hammer head which is distinct from the screw body and which is secured thereto.
  • the screw body and its hammer head are secured by engaging one end of the screw body in a hole (through) formed in the hammer head.
  • the fastening is done by conical fitting of the screw body in the hole made in the hammer head.
  • the mechanical stresses are distributed over the entire length of the interface, for example conical in the case of a conical fitting, between the two parts, which length can be adapted according to the needs and dimensioning of the parts.
  • the screw body and its hammer head are provided with relative positioning means, in particular radial centering means with respect to the axis of the screw body.
  • It may in particular be a pin on one of the parts cooperating with a notch of complementary shape on the other part, for example a pin protruding radially at the end of the screw body and cooperating with a notch of complementary shape in the hole of the hammer head in which is engaged said end of the screw body.
  • the hollow screw including the screw body, anti-rotation means of the associated nut: They prevent the rotation of the screw when it comes to tighten the screw on the frame with the nut.
  • These anti-rotation means may take the form of at least one protruding zone or hollow on the end face of the screw body opposite to the end engaged in the hammer head, able to form a catch for / engage in a tool having the complementary shape of this projecting area or hollow.
  • the nut associated with the hollow screw is preferably a self-locking nut.
  • the figure 1 represents the fixed part PF of the lock V, that fixed, in operation, to the outer edge of the counter-needle rail. It comprises a metal frame 1, machined to adapt to the shape of the counter-needle, the needle and the shape of the railway track. This frame 1 has a translation corridor and a locking chamber, itself machined to meet the opening conditions of the switch, in known manner.
  • the fixed portion PF of the lock also comprises a base plate 2, also of metal, fixed to the frame 1 by screws 3, and a support 4 vis-à-vis a sliding fur 5 on which the needle blade moves.
  • the support 4 of the fur 5 is inserted in the frame 1 and fixed on the base plate 2 by a centering pin and a screw 6.
  • the fixed part also comprises a hollow bolt 7 comprising a hollow screw 71 which passes through a wall of the frame and which is equipped with a hammer head 72, an elastic washer 73 and a self-locking nut 74, in which slides a piston 75 (shown in FIG. figure 4 ) It also comprises a bronze locking piece 8 fixed to the frame 1 by a screw 9.
  • It also provides two half-collars 10 for fixing the cables of the controllers, and two jaws 11 and their fasteners 12 pressing the frame 1 against the foot of the counter-needle. It also provides a protective cover 13 and an access hatch 14 facilitating access for various maintenance operations.
  • the figure 2 represents the movable part PM of the lock, that fixed to the needle. It comprises a locking arm 15 ("C") of metal provided with a control arm 16. The locking arm is guided along the sliding fur 5 of the figure 1 by the lower slide 15A and rests on the base plate via a sliding pad 17. A hole 18 at the end of the control branch 16 allows the attachment of the connecting rod for common control to the two locks of a complete referral system, through a axis not shown.
  • the "hand" fastening 19 is fixed against the core of the needle blade by means of two oblong holes 20, so as to allow a longitudinal displacement of the needle blade, due in particular to expansion phenomena .
  • the lock assembly “C-hand” is attached to the needle blade by hammerhead bolts 21 equipped with washers and a self-locking nut, the assembly being secured by a cotter pin 22.
  • the locking system of the "C-main” assembly is equipped with a head sliding shoe 23 held mechanically by a screw 24 and a notch 25 serving to guide the control arm of the controller.
  • the locking arm “C” and the fixing hand are held together by an axis and a ring, which allows a rotation movement of the "C” relative to the "hand”.
  • the figure 3 is a top view of the assembly of the lock V associating the fixed parts PF and mobile PM of Figures 1 and 2 in the open position, the fixed part being secured to a counter-needle rail 26 and the movable part being secured to the needle 27.
  • the needle In the closed position, the needle is pressed against its counter-needle by a relative movement between the fixed part and mobile part of the lock, and then locked in position.
  • the figure 4 is a side view of the lock V, which shows the nut 74 of the hollow bolt 7, its piston 75 and the lock controller 30 associated with the lock V, the latch being in the closed-locked position.
  • the Figures 5 and 6 represent, in an isolated manner, the hollow screw 71 associated with its hammer head 72.
  • the hollow screw 71 is pierced with a cylindrical orifice O crossing at its center, along its entire length along its longitudinal axis X, so as to allow the free sliding of the piston 75.
  • this hollow screw was in one piece with its head.
  • the screw is broken down into a screw body 71 (also referred to alternatively as threaded hollow rod in the present text), which is threaded over a portion of its length at least L2, which is assembled to a hammer head 72, which is a separate piece.
  • the two parts are mechanically linked by conical fitting of one of the ends of the threaded rod 71 in a through hole in the hammer head 72.
  • This type of assembly is known per se: the rod is inserted into the orifice forcefully, in an area where the two components have a complementary conical shape, so as to ensure a jamming of the rod 71 in the hole of the hammer head 72.
  • the figure 5 more particularly, also represents a hollow 77 delimiting a substantially cubic / parallelepipedal space on the threaded rod 71, on its end face opposite to that assembled to the hammer head 72.
  • This hollow 77 is an anti-rotation means of the rod threaded 71: The operator comes to tighten it with the nut 74 on the frame by engaging a tool having a complementary shaped head in this hollow, thus preventing the rod from rotating together with the nut during the Tightening.
  • the figure 6 more particularly, also represents relative centering means between the threaded rod 71 and the hammer head 72, in the form of a radially projecting pin 76 at the end of the threaded rod secured to the head 72, cooperating with a notch of complementary shape present at the conical orifice of the head 72 accommodating the threaded rod 71.
  • the operator can easily identify how to position in radial orientation with respect to the X axis the two rooms between them.
  • the hammer head 72 has a specific shape that is not revolution with respect to the X axis, and it is important that it is positioned correctly.
  • the clamping method of the bolt according to the invention remains the same as with the screw in one piece previous solutions. It is simply preceded by the assembly of the screw body to the hammer head, either before or during the installation of the lock.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Claims (10)

  1. Verriegelungsvorrichtung (V) einer Eisenbahnweiche, die einen ortsfesten Teil (PF), der dazu bestimmt ist, fest mit einer Hauptschiene (26) verbunden zu werden, und einen Teil (PM) enthält, der bezüglich des ortsfesten Teils beweglich und dazu bestimmt ist, am entsprechenden Weichenteil (27) befestigt zu werden, wobei der bewegliche Teil das Aufbringen des Weichenteils auf die Hauptschiene und seine Verriegelung mittels eines Verriegelungsarms (15) erlaubt, der dazu bestimmt ist, von einem Betätigungsorgan der Weiche angetrieben zu werden, wobei der ortsfeste Teil einen Bolzen (7) mit Hohlschraube enthält, in der ein Kolben (75) gleitet, der dazu bestimmt ist, von dem Weichenteil betätigt zu werden, um den Regler (30) der Verriegelungsvorrichtung zu steuern, dadurch gekennzeichnet, dass die Hohlschraube einen Schraubenkörper (71) und einen Hammerkopf (72) aufweist, der sich vom Schraubenkörper unterscheidet und fest mit diesem verbunden ist.
  2. Vorrichtung (V) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Schraubenkörper (71) und sein Hammerkopf (72) durch Einführen eines Endes des Schraubenkörpers in eine im Hammerkopf hergestellte Öffnung fest miteinander verbunden werden.
  3. Vorrichtung (V) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Schraubenkörper (71) und sein Hammerkopf (72) durch konisches Einpassen des Schraubenkörpers in die im Hammerkopf hergestellte Öffnung fest verbunden werden.
  4. Vorrichtung (V) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schraubenkörper (71) und sein Hammerkopf (72) mit Einrichtungen (76) zur relativen Positionierung versehen sind.
  5. Vorrichtung (V) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Einrichtungen zur relativen Positionierung Einrichtungen zur radialen Zentrierung bezüglich der Achse des Schraubenkörpers sind.
  6. Vorrichtung (V) nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass die Einrichtungen zur relativen Positionierung einen Stift (76) auf einem der Bauteile aufweisen, der mit einer Einkerbung komplementärer Form auf dem anderen Bauteil zusammenwirkt.
  7. Vorrichtung (V) nach den Ansprüchen 2 und 6, dadurch gekennzeichnet, dass der Stift (76) radial am Ende des Schraubenkörpers (71) vorsteht und mit einer Einkerbung komplementärer Form in der Öffnung des Hammerkopfs (72) zusammenwirkt, in die das Ende des Schraubenkörpers eingeführt ist.
  8. Vorrichtung (V) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schraubenkörper (71) mit Drehsperreinrichtungen (78) der zugeordneten Mutter (74) versehen ist.
  9. Vorrichtung (V) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Drehsperreinrichtungen mindestens eine vorspringende oder vertiefte Zone (78) auf der Endseite des Schraubenkörpers (71) entgegengesetzt zum in den Hammerkopf (72) eingeführten Ende aufweisen.
  10. Vorrichtung (V) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die der Hohlschraube zugeordnete Mutter (74) eine selbstbremsende Mutter ist.
EP20110174587 2010-07-30 2011-07-19 Verriegelungsvorrichtung für Bahnweichen Active EP2412602B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1056321A FR2963307B1 (fr) 2010-07-30 2010-07-30 Dispositif de verrouillage d'aiguillage ferroviaire

Publications (2)

Publication Number Publication Date
EP2412602A1 EP2412602A1 (de) 2012-02-01
EP2412602B1 true EP2412602B1 (de) 2013-04-10

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EP (1) EP2412602B1 (de)
FR (1) FR2963307B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3012401B1 (fr) * 2013-10-30 2015-12-04 Vossloh Cogifer Ensemble forme d'un vcc (verrou carter coussinet) d'appareil de voie sur traverse
CN110428714B (zh) * 2019-08-12 2021-02-19 西南交通大学 一种柔性控制的铁路沙盘转辙机装置
WO2021040697A1 (en) * 2019-08-27 2021-03-04 Siemens Mobility Pty Ltd. Locking device for a railway switch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE874786C (de) * 1951-04-05 1953-04-27 Marcel Luc Amedee Paulve Vorrichtung zur UEberwachung von Eisenbahnweichen
DE1086733B (de) * 1958-03-10 1960-08-11 Carl Dan Peddinghaus Kommandit Verschlusskastenbefestigung fuer den Klammerspitzenverschluss von Weichen
IT1298019B1 (it) * 1997-10-22 1999-12-20 Sasib Railway Spa Cassa di manovra per scambi ferroviari, ferrotranviari, o simili.

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FR2963307A1 (fr) 2012-02-03
FR2963307B1 (fr) 2012-09-14
EP2412602A1 (de) 2012-02-01

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