WO1995015415A1 - Verfahren zum niederhalten einer beweglichen herzstückspitze eines herzstücks einer weiche sowie niederhalteeinrichtung - Google Patents
Verfahren zum niederhalten einer beweglichen herzstückspitze eines herzstücks einer weiche sowie niederhalteeinrichtung Download PDFInfo
- Publication number
- WO1995015415A1 WO1995015415A1 PCT/EP1994/003965 EP9403965W WO9515415A1 WO 1995015415 A1 WO1995015415 A1 WO 1995015415A1 EP 9403965 W EP9403965 W EP 9403965W WO 9515415 A1 WO9515415 A1 WO 9515415A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tip
- frog
- hold
- centerpiece
- down device
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
- E01B7/14—Frogs with movable parts
Definitions
- the invention relates to a method for holding down a movable frog tip of a frog of a switch, the frog tip being held down in the rest position and for changing the frog tip the hold-down is released before the start of a changeover.
- the invention relates to a hold-down device for holding down a movable centerpiece tip of a centerpiece of a switch, in particular for carrying out the aforementioned method.
- the invention relates to a centerpiece with wing rails, with at least one slide plate arranged below the wing rails, with a frog tip movable between two positions between the wing rails and with a hold-down device of the aforementioned type arranged under the frog tip, and a switch with such a frog.
- Turnouts are known to enable individual rail vehicles or trains to change from one track, the so-called main track, to one branching from it, the so-called branch track, without interrupting the journey.
- a switch has one or more frogs.
- the heart of switches or crossings is the result of overlapping rail tracks. Basically there are simple, double, double and triple frogs, the latter are also called multi-part frogs.
- the simple centerpiece is most often found on simple switches. It can be a straight centerpiece with straight edges in the main and branch tracks or an arc centerpiece with curved trunk and branch tracks or a curved and a straight track.
- the driving edges of the intersecting rail tracks are interrupted at the heart.
- the rail tracks continuing from the tongues are bent in the frog area and referred to as wing rails.
- the two strands, which continue from the turnout ends, are brought together to the centerpiece tip.
- the known hold-down device is firmly connected to the underside of the frog tip and has a multiplicity of disc springs which generate the necessary hold-down force in order to pull the frog tip onto the sliding plates in the rest position.
- the hold-down is released before the changeover process begins.
- the known hold-down device has a hydraulic drive. which generates a counterforce counter to the spring force so that the changeover can take place.
- the hydraulic drive of the known hold-down device is usually located adjacent to the heart. The drive is connected to the hold-down device via hydraulic lines.
- a disadvantage of this known hold-down device is that retrofitting is only possible with extremely great effort due to the necessary attachment of the hold-down device to the tip of the heart.
- Another disadvantage arises from the complex hydraulic drive and the risk of leakage in the hydraulic connecting lines. Leakage of the hydraulic connection of the drive to the hold-down device can result in the maximum hydraulic force not being sufficient to cancel the spring force generated by the plate springs, which makes a changeover impossible.
- the hold-down device has at least one magnet.
- the advantage of the magnetic hold-down device is that a holding-down device having a magnet can be retrofitted in a particularly simple manner, since mechanical processing of the frog tip and in particular a mechanical connection dung as in the known hold-down device is not required. There is also no need for a hydraulic drive. The problems arising in the prior art therefore do not occur in the invention.
- Magnetic hold-down can in principle be carried out with the aid of at least one permanent magnet or at least one electromagnet. If a permanent magnet is used, an additional release device can be used to release the hold-down, which pushes the tip of the frog upward against the magnetic force for the changeover.
- the electrical deactivation of the permanent magnet, to which a coil is assigned for this purpose and which generates a force opposing the permanent magnet, is preferred.
- the hold-down per se and the release of the hold-down can be controlled in a particularly simple manner in an electromagnet in that the electromagnet is actuated electrically. As soon as the electrical connection to the electromagnet is interrupted, no magnetic force is generated to hold it down. However, the use of at least one permanent magnet is particularly preferred. This generates the magnetic force even without additional electrical energy.
- the electrical deactivation is required only for the changeover, while the situation with the electromagnet is exactly the opposite.
- the invention further relates to a chuck for holding down a frog tip of a frog of a switch, with a front end to be arranged above the outer end of the frog tip, and a frog with such a chuck and finally a switch with such a frog with a chuck and in particular in combination with the hold-down device mentioned at the beginning.
- the front end of the chuck which is intended to cooperate with the outer end of the frog tip, has at least one spring element acting on the frog tip.
- the lining piece according to the invention fulfills a double function, namely a hold-down function and a damping function. Due to the at least one spring element, the vibrations that occur can be damped in a simple manner, while with the corresponding setting of the spring force only relatively small forces have to be applied for the changeover and nevertheless an effective hold-down of the frog tip is ensured.
- FIG. 1 shows a schematic cross-sectional view of a part of a heart piece according to the invention with a hold-down device according to the invention
- Fig. 2 is a view corresponding to FIG. 1 of part of a frog with
- FIG. 3 shows a view along the section line III-IE from FIG. 2.
- a part of a frog 1 of a switch is shown.
- the heart is provided with wing rails 2, 3, which are arranged on at least one slide plate 4. Between the wing rails 2, 3 there is a frog tip 5 which moves between the wing rails 2, 3 via a changeover path U between two positions. is cash.
- a holding-down device 6 for holding down the movable centerpiece tip 5 is located below the centerpiece tip 5.
- the hold-down device 6 has a magnet.
- the magnet can basically be an electromagnet, it is particularly expedient that the magnet is designed as a permanent magnet.
- An electrical supply line 7 is provided for the electrical deactivation of the permanent magnet or for the supply of the electromagnet. The basic representation and design of the permanent magnet or the electromagnet has been dispensed with in the present case.
- the electromagnet according to the invention has an iron core which is inherently non-magnetic, which is penetrated by the magnetic field of a current coil, amplifies it and itself assumes magnetic properties.
- electromagnets consist of soft iron and are either solid or (in the case of operation with alternating current) layered from sheet metal.
- the permanent magnet according to the invention is preferably at least partially surrounded by a coil. When the coil is activated, a force opposed to the magnetic force of the permanent magnet is generated, which releases the hold-down and enables a changeover. The permanent magnet is electrically deactivated in this way.
- the slide plate 4 is excluded in the area of the hold-down device 6. In this way, there is a direct neighborhood between the underside 9 of the frog tip 5 and the active surface 10 of the hold-down device 6.
- the active surface 10 of the hold-down device 6 is directly added to the magnet. calculates.
- the arrangement of the hold-down device 6 to the frog tip 5 is such that the distance from the underside 9 of the frog tip 5 to the active surface 10 of the hold-down device 6 is relatively small, preferably less than 1 mm, when the hold-down device is released, that is to say when the permanent magnet or currentless electromagnet is deactivated and in particular is 0.4 mm.
- the sliding plate is of course also continuous, i.e. H. without recess, can be formed.
- the magnetic force to be exerted by the magnet is correspondingly greater in order to ensure that the tip of the frog is held down appropriately.
- the invention provides that the hold-down device 6 is supported on the slide plate 4 and / or the wing rails 2, that is to say it cannot be moved back and forth in a fixed manner.
- corresponding flanges 11, 12 are provided on the housing 8 of the holding-down device 6, which are supported on the undersides 13, 14 of the wing rails 2, 3 in the exemplary embodiment shown.
- a single circumferential flange can of course also be provided.
- a direct attachment of the flanges 11, 12 is not absolutely necessary.
- the hold-down device 6, i. H. supports the housing 8 on the base 15.
- the hold-down device 6 can, for example, also be connected to the sliding plate, in particular screwed or welded. .
- the width of the electromagnet is greater than the width of the frog tip 5.
- the magnet preferably extends over the length of the changeover path U of the frog tip 5. In the illustrated embodiment, the magnetic Force then generated over the entire length of the active surface 10.
- magnets are arranged in the housing of the holding-down device. These are then preferably arranged next to one another along the changeover path, in each case in the region of the two positions. Every single magnet is controlled by Use of electromagnets as a function of the rearrangement of the frog tip, so that only one of the two electromagnets is always in operation for holding down.
- the heart 1 is provided with a lining piece 16.
- the lining piece 16 is arranged between the wing rails 2, 3 and braced or fastened in a manner known per se, so that a more detailed description of the bracing or fastening and the outer shape of the lining piece 16 can be dispensed with.
- the front end 17 of the chuck 16 is arranged above the outer end 18 of the frog tip 5 and interacts with it.
- the front end 17 of the chuck 16 and the outer end 18 of the frog tip 5 are each stepped, which results in particular from FIG. 3.
- the front end 17 forms an upper step, which is arranged above the lower end 18 designed as a lower step.
- the chuck 16 has at least one spring element 19 acting on the outer end 18 of the frog tip 5;
- the invention provides for the spring force of the spring element 19 to be adjustable.
- At least one helical compression spring and / or a plate spring can serve as the spring element 19.
- a helical compression spring is provided.
- the spring element 19 is arranged in an approximately vertical bore 20 in the chuck 16.
- an adjustment element 22 is provided which is accessible from the top 21 of the chuck 16 and acts on the spring element 19.
- the adjusting element 22 can be a screw, for example.
- the screw designed as an adjusting element 22 is arranged in a threaded bore 23 which merges into the bore 20.
- the setting of the spring force of the spring element 19 is achieved by prestressing the spring element 19, for which purpose, for example, a stop disk (not shown) can be used, which is connected to the adjusting element 22 and acts on the spring element 19. Since the centerpiece tip 5 is movable, that is to say is not restricted to a specific position, it is advisable for the spring element 19 to extend onto a pressure plate which extends approximately over the changeover path U of the centerpiece tip 5, preferably approximately over the entire width of the lining piece 16 24 acts, which rests on the outer end 18 of the frog tip 5. It goes without saying that a plurality of spring elements 19, which act on the pressure plate 24 and are preferably distributed over the width of the lining piece, can of course also be provided.
- the pressure plate 24, which could also be called a slide plate, consists of a material with good damping properties and a low coefficient of friction. Plastic is particularly suitable as a material.
- the spring element is preferably set such that no or only very slight forces act on the frog tip 5 in this state, so that the frog tip 5 can be easily changed over. Furthermore, the spring element is set and designed such that the spring force increases abruptly as soon as the tip 5 of the heart moves relative to the wing rails 2, 3 and thus to the chuck 16 upwards. In this way, vibrations that occur are effectively damped by the at least one spring element 19.
- the hold-down device 6 In the rest position, that is to say with the frog tip 5 held down, the hold-down device 6 according to the invention generates a magnetic force which holds the frog tip 5 down.
- the centerpiece tip 5 is pulled onto the sliding plate 4 with sufficient force.
- the hold-down is released before the changeover process begins, ie when a permanent magnet is used, it is electrically deactivated, or when an electromagnet is used, its energy supply is interrupted. Vibrations occurring at this moment are then absorbed exclusively by the at least one spring element 19 of the chuck 16, while vibrations occurring in the rest position of the frog tip 5 are already being carried out by that of the at least one Magnetic generated magnetic force can be substantially damped.
- the magnet is activated again, so that the frog tip 5 is pulled again against the sliding plate 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnets (AREA)
- Manipulator (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95903780A EP0731861B1 (de) | 1993-12-01 | 1994-11-30 | Verfahren zum niederhalten einer beweglichen herzstückspitze eines herzstücks einer weiche sowie niederhalteeinrichtung |
DE59403992T DE59403992D1 (de) | 1993-12-01 | 1994-11-30 | Verfahren zum niederhalten einer beweglichen herzstückspitze eines herzstücks einer weiche sowie niederhalteeinrichtung |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934340860 DE4340860C2 (de) | 1993-12-01 | 1993-12-01 | Futterstück zur Anordnung zwischen Flügelschienen einer Weiche sowie Weiche |
DEP4340860.5 | 1993-12-01 | ||
DE4400424 | 1994-01-08 | ||
DEP4400424.9 | 1994-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995015415A1 true WO1995015415A1 (de) | 1995-06-08 |
Family
ID=25931664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/003965 WO1995015415A1 (de) | 1993-12-01 | 1994-11-30 | Verfahren zum niederhalten einer beweglichen herzstückspitze eines herzstücks einer weiche sowie niederhalteeinrichtung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0731861B1 (de) |
AT (1) | ATE157719T1 (de) |
DE (1) | DE59403992D1 (de) |
WO (1) | WO1995015415A1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE49347C (de) * | F. J. HOYT in Chicago, 237 La Salle-Str., Illinois, V. St. A | Weichenanlage mit verschiebbarem Herzstück | ||
FR357175A (fr) * | 1905-08-24 | 1905-12-20 | Etablissements Elwell Soc D | Pointe de coeur articulée pour chemins de fer |
FR2256988A2 (de) * | 1974-01-03 | 1975-08-01 | Paris & Outreau Acieries | |
AU552880B2 (en) * | 1984-08-23 | 1986-06-26 | Julia Eva Osredecki | Railway line switching frog |
EP0548734A1 (de) * | 1991-12-20 | 1993-06-30 | BWG Butzbacher Weichenbau GmbH | Unterlage für einen beweglichen Oberbaugleisabschnitt |
-
1994
- 1994-11-30 EP EP95903780A patent/EP0731861B1/de not_active Expired - Lifetime
- 1994-11-30 DE DE59403992T patent/DE59403992D1/de not_active Expired - Fee Related
- 1994-11-30 WO PCT/EP1994/003965 patent/WO1995015415A1/de active IP Right Grant
- 1994-11-30 AT AT95903780T patent/ATE157719T1/de not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE49347C (de) * | F. J. HOYT in Chicago, 237 La Salle-Str., Illinois, V. St. A | Weichenanlage mit verschiebbarem Herzstück | ||
FR357175A (fr) * | 1905-08-24 | 1905-12-20 | Etablissements Elwell Soc D | Pointe de coeur articulée pour chemins de fer |
FR2256988A2 (de) * | 1974-01-03 | 1975-08-01 | Paris & Outreau Acieries | |
AU552880B2 (en) * | 1984-08-23 | 1986-06-26 | Julia Eva Osredecki | Railway line switching frog |
EP0548734A1 (de) * | 1991-12-20 | 1993-06-30 | BWG Butzbacher Weichenbau GmbH | Unterlage für einen beweglichen Oberbaugleisabschnitt |
Also Published As
Publication number | Publication date |
---|---|
DE59403992D1 (de) | 1997-10-09 |
ATE157719T1 (de) | 1997-09-15 |
EP0731861A1 (de) | 1996-09-18 |
EP0731861B1 (de) | 1997-09-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1974100B1 (de) | System zur befestigung einer schiene | |
EP2045164B1 (de) | Spurführungsvorrichtung für schienengebundene Fahrzeuge und Eisenbahnweiche hierzu | |
EP0904459B1 (de) | Vorrichtung zum umstellen von weichenzungen | |
EP3045643B1 (de) | Torblatt | |
DE3234651A1 (de) | Schiene mit einem induktiven schienenschalter | |
EP0731861B1 (de) | Verfahren zum niederhalten einer beweglichen herzstückspitze eines herzstücks einer weiche sowie niederhalteeinrichtung | |
CH378355A (de) | Fahrbare Gleisstopfmaschine | |
DE19903819A1 (de) | Schalungssystem für Betonfertigteile | |
DE4028390A1 (de) | Elektromagnetisch arbeitende jacquard-steuervorrichtung | |
DE4340860A1 (de) | Verfahren zum Niederhalten einer beweglichen Herzstückspitze eines Herzstücks einer Weiche sowie Niederhalteeinrichtung | |
DE2755565A1 (de) | Prellbock fuer schienenfahrzeuge | |
EP0165229B1 (de) | Vorrichtung zur Sicherung der Lage der Zungenschienen von Gleisweichen | |
DE4305228A1 (de) | Herzstück | |
EP1060097A1 (de) | Gleisbremse, insbesondere gefälleausgleichsbremse | |
DE4400845C2 (de) | Vorrichtung zum steuerbaren Mitnehmen von Fadenführern an Flachstrickmaschinen | |
DE4236916A1 (en) | Vertical sliding door for fireplace opening - is mounted on telescopic guide rails and its movement is controlled by cable and counterweight | |
EP1643026B1 (de) | Strickmaschine mit einer Mustereinrichtung und einem magnetischen Nadelauswahlsystem | |
DE102007047370A1 (de) | Spurführungsvorrichtung | |
DE202004006220U1 (de) | Magneteinrichtung | |
WO2007140879A1 (de) | Vorrichtung zum umstellen von weichenzungen | |
DE3708752A1 (de) | Verstellbare schienenbefestigung | |
DE2502313A1 (de) | Magnetschwebebahn | |
DE3422230A1 (de) | Gleisbremselement | |
EP0792968B1 (de) | Anordnung zum Niederhalten einer Herzstückspitze | |
CH360085A (de) | Einrichtung zur Befestigung von Eisenbahnschienen auf Schwellen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): FI PL |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1995903780 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1995903780 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: CA |
|
WWG | Wipo information: grant in national office |
Ref document number: 1995903780 Country of ref document: EP |