EP0232726A2 - Coussinet de glissement pour aiguillage de chemin de fer - Google Patents

Coussinet de glissement pour aiguillage de chemin de fer Download PDF

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Publication number
EP0232726A2
EP0232726A2 EP87100322A EP87100322A EP0232726A2 EP 0232726 A2 EP0232726 A2 EP 0232726A2 EP 87100322 A EP87100322 A EP 87100322A EP 87100322 A EP87100322 A EP 87100322A EP 0232726 A2 EP0232726 A2 EP 0232726A2
Authority
EP
European Patent Office
Prior art keywords
sliding
frame
chair according
sliding chair
recess
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
EP87100322A
Other languages
German (de)
English (en)
Other versions
EP0232726A3 (en
EP0232726B1 (fr
Inventor
Urs Germann
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.)
Magna Holding Anstalt
Original Assignee
Magna Holding Anstalt
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 Magna Holding Anstalt filed Critical Magna Holding Anstalt
Priority to AT87100322T priority Critical patent/ATE74634T1/de
Publication of EP0232726A2 publication Critical patent/EP0232726A2/fr
Publication of EP0232726A3 publication Critical patent/EP0232726A3/de
Application granted granted Critical
Publication of EP0232726B1 publication Critical patent/EP0232726B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01B7/02—Tongues; Associated constructions
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2202/00—Characteristics of moving parts of rail systems, e.g. switches, special frogs, tongues
    • E01B2202/04—Nature of the support or bearing
    • E01B2202/042—Sliding
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2202/00—Characteristics of moving parts of rail systems, e.g. switches, special frogs, tongues
    • E01B2202/04—Nature of the support or bearing
    • E01B2202/06—Use of friction-reducing surfaces

Definitions

  • the invention relates to a sliding chair for a rail switch or a rail crossing with a sliding insert on which the tongue rail or a movable centerpiece tip can be slid transversely relative to the stock or wing rail.
  • the generally known sliding chairs have to be lubricated again and again at relatively short intervals in order to keep the friction when moving the tongue rail or the centerpiece tip small.
  • a sliding chair has been proposed in which in a recess a sliding insert is arranged in the form of a plastic plate.
  • this plastic plate has not proven itself, since after a comparatively short period of operation was destroyed by the rail tongue, the coefficient of friction rose relatively high, so that it had to be replaced after a short time.
  • Another disadvantage is that the sliding inserts often have to be replaced, which leads to interruptions in rail traffic and also jeopardizes the maintenance personnel, especially on high-speed lines that are traveled at short intervals and at a speed of 250 km / h.
  • the invention is therefore based on the object to provide a sliding chair of the type mentioned which avoids the disadvantages mentioned.
  • the sliding chair plate according to the invention should be reliable and maintenance-free and also suitable for high-speed lines. In addition, the costs should be kept within an economically reasonable range.
  • the sliding chair plate according to the invention is characterized in that the sliding insert has a plurality of gletie elements made of a self-lubricating sliding metal which protrude beyond the surface of the sliding chair and which are held in a frame which is removably locked in a recess in the sliding chair.
  • Fig. 1 shows a sliding chair 3, which is integrally formed on a base plate 4, which in turn is screwed onto a railway sleeper, not shown here.
  • a stock rail 2 runs over the base plate 4 and is clamped to the sliding chair 3 in a known manner by means of a clamping bracket 11 (FIG. 2).
  • a sliding insert 5 is inserted, on which a rail tongue 1 rests.
  • the rail tongue 1 can also be a movable centerpiece tip, not shown here. This can be moved laterally relative to the wing rail by means of a drive, not shown, as required.
  • the insert 5 has a sheet metal frame 7 with a plurality of openings 15, in which sliding elements 6 with a fixed fit are inserted.
  • the sliding elements 6 have a flange 16 in the part lying under the frame 7 and lie on the full surface of the sliding chair 3 below.
  • the sliding elements 6 protrude beyond the frame 7 and the surface of the sliding chair 3, so that the tongue rail 1 only rests thereon.
  • the sliding elements 6 form three rows, the middle row 17 being offset by half a distance from the two outer rows 18 in the longitudinal direction of the sliding chair 3. This ensures that the bearing surface 19 of the tongue rail always rests on several sliding elements at the same time, in particular in the direction of movement.
  • the sliding elements 6 consist of a self-lubricating sliding metal and have a circular shape.
  • Sintered and pressed sliding bronze such as e.g. Graphite bronze.
  • the frame 7 has a trapezoidal or rectangular cross-sectional area and is inserted into the recess 8, which is designed as a dovetail or rectangular groove.
  • the frame 7 lies at one end on a transverse wall 29 of the recess 8 and at the other end with two laterally protruding locking tongues 10 on ridges 9 such that the sliding insert 5 is locked in the sliding chair without play.
  • the sliding insert 5 can be removed in a simple manner by engaging with the tool 13 shown schematically in FIG. 3 from below into an opening 20 and lifting the frame 7 at the front end and pulling it out of the recess 8.
  • the sliding insert 5 is pushed into the recess 8 as far as it will go on the transverse wall 19, the locking tongues 10 automatically engaging.
  • the sliding insert 5 can thus be exchanged very quickly in a few simple steps and at the same time is locked in the sliding chair 3 without play.
  • the frame 7 is made of an approximately 2 mm thick steel sheet, but it can also consist of a suitable plastic, such as thermosetting plastic alone or with a bracing wire mesh.
  • a problem with the sliding chair described so far is the dimensional adjustment of the frame 7 to the recess 8 of the sliding chair cover.
  • the recess 8 is milled or otherwise manufactured and has relatively large manufacturing tolerances that are not negligible in the transverse and longitudinal directions.
  • the dimensions of the frame also have 7 tolerances.
  • the dimensional adjustment of the sliding inserts 5 is accomplished with the help of loops or files.
  • Each sliding insert 5 or frame 7 is thus individually adapted to the associated recess 8 of the sliding chair 3. This is costly and time consuming.
  • the main disadvantage, however, is that, due to the tolerances of the frame 7, the required simple interchangeability of the individual sliding inserts with one another is not possible.
  • the spring elements are realized by plastic or elastomer buffers, while in the embodiment of FIG. 7 a plastic frame is provided on at least three sides of the frame 7 and can also deform.
  • Fig. 5 shows the frame 7 with inserted sliding elements 6.
  • On three sides of the frame 7 are provided in one piece with this springs 21, which are made by crescent-shaped punchings 31, so that a substantially crescent-shaped area 24 via a web 32 with the frame 7th connected is.
  • the closed end of the punched-out 31 thus ends on one side of the web 32.
  • a further, short punched-out 33 is provided on the other side of the web.
  • the outward-facing edge or the free end 25 of the crescent-shaped region 24 protrudes beyond the contour of the frame 7 in such a way that it extends at an acute angle 34 to the rectilinear edge 35 of the frame.
  • the acute angle 34 is selected in accordance with the direction of insertion 35 so that the end 36 of the crescent-shaped region 24 facing away from the web 32 protrudes furthest from the frame 7.
  • the free ends 25 are bent downwards in the direction of the sliding chair 3 (FIG. 5d), specifically at a bevel angle 26.
  • This bevel angle 26 is defined as the angle between a line perpendicular to the plane of the frame 7 and the beveled surface 36 of the free end 25.
  • This angle 26 is adapted to the angle of the dovetail-shaped recess 8 in such a way that it is smaller than the corresponding angle of the recess 8.
  • this also achieves a torque which the frame 7 presses downwards against the sliding chair 3 or against the base of the recess 8, the bevel naturally deforming thereby, so that the angle 26 then adapts to the angle of the dovetail-shaped recess by the deformation.
  • the frame 7 has a total of seven cantilever springs 21, a cantilever spring being present on the front of the frame 7 lying in the insertion direction 35 and three cantilever springs 21 each being evenly distributed on the sides of the frame 7 lying transverse to the insertion direction 35 lie.
  • locking tongues 37 are also provided here, corresponding to the locking tongues 10 of FIG. These locking tongues 37 are also bevelled downwards, so that when the frame 7 is inserted into the recess 8 they can be felt clearly behind the elevations 9 (FIG. 1).
  • the length of the folds is selected so that the undersides of the sliding elements 6 rest on the sliding chair 7 in the fixed state of the frame.
  • plastic buffers 22 are used instead of the cantilever springs 21.
  • These plastic buffers have an essentially U-shaped profile (see FIGS. 6c and 6d) which is pushed onto the frame 7.
  • centering cutouts 40 FIG. 6a.
  • the plastic buffers 22 In the part projecting laterally beyond the edge of the frame 7, the plastic buffers 22 have a cavity 41 which facilitates the deformation of this projecting area.
  • the outward-facing side 41 which comes into contact with the assigned wall surface of the dovetail-shaped recess 8, is chamfered with an oblique angle 42, whereby this angle (FIG.
  • Fig. 6d can also be smaller here (e.g. by 2 ° ) as the angle of the dovetail-shaped recess, with which the clamping torque is obtained again.
  • Fig. 6d it is a clockwise torque that presses the frame 7 down against the sliding chair 3.
  • the helix angle 42 corresponds to the helix angle of the dovetail guide.
  • the frame 7 can also be bent in the area of the plastic buffers 22.
  • the elastic-plastic connection between the frame 7 and the recess 8 is made by a one-piece plastic or elastomer frame 23, which also has a U-shaped profile (similar to FIG. 6), but in the insertion direction 35 to the front facing edge and the two edges lying transversely to the direction of insertion 35 of the frame 7 covered.
  • the edges of the frame 7 are cranked all around (see FIGS. 7b and 7c).
  • the helix angle 42 is such that a holding-down moment is applied to the frame 7, which gives the sliding insert additional stability.
  • tongue and Vignol rails are usually rolled profiles, they have so-called longitudinal grooves due to the rotational grooves when rolling. B. in the tongue perpendicular to the direction of movement and thus dig into the sliding elements 6, so that the latter are worn out very quickly and also give off a relatively high coefficient of friction.
  • a sliding plate 43 is used between the rail tongue 1 and the sliding chair 3.
  • a spring steel plate is preferred, since it has a very dense, fine surface due to the cold rolling with a very small ⁇ (approx. 4 ⁇ to 6 ⁇ ) and, due to the corresponding shape, a relatively high clamping force on the partially machined or not machined rail foot.
  • a dimension of 1 mm is sufficient as the material thickness.
  • FIGS. 8 and 9 Such a sliding plate is shown in FIGS. 8 and 9.
  • the sliding plate 43 has a substantially flat base body 44.
  • it has opposite, upwardly angled stop plates 45 and 46, of which the one stop plate 45, which rests on the inside of the tongue, as far as is bent around the tongue base, that permanent fixation of the sliding plate is guaranteed.
  • the free end 47 of the stop plate 45 is bent upward so that the plate can be easily pushed over the tongue base.
  • the two stop plates 46 are bent upwards so that they point somewhat inwards, in order to thereby generate the necessary spring force. Their free ends 48, on the other hand, point outwards again, so that they are easy to open. push the sliding plate 43 from below is possible. With these three stop plates 45 and 46, the sliding plate 43 is clearly fixed in the transverse direction of the rail tongue 1. A statically determined three-point system is also achieved using the three stop plates. In order to prevent the sliding plate from wandering in the longitudinal axis of the rail tongue relative to the sliding chair, bevels 49 pointing downward transversely to the longitudinal direction of the rail tongue 1 are provided, which can thus slide along the longitudinal edge of the sliding chair 3.
  • an inlet 50 and 51 is provided at both ends of each bend 49, which prevents hooking on the longitudinal edges of the sliding chair without a doubt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Slide Switches (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Switches With Compound Operations (AREA)
  • Sliding-Contact Bearings (AREA)
  • Chairs Characterized By Structure (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP87100322A 1986-01-14 1987-01-13 Coussinet de glissement pour aiguillage de chemin de fer Expired - Lifetime EP0232726B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87100322T ATE74634T1 (de) 1986-01-14 1987-01-13 Gleitstuhl fuer eine schienenweiche.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH106/86 1986-01-14
CH106/86A CH669231A5 (de) 1986-01-14 1986-01-14 Gleitstuhl fuer weichen und kreuzungen.

Publications (3)

Publication Number Publication Date
EP0232726A2 true EP0232726A2 (fr) 1987-08-19
EP0232726A3 EP0232726A3 (en) 1988-09-28
EP0232726B1 EP0232726B1 (fr) 1992-04-08

Family

ID=4179408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100322A Expired - Lifetime EP0232726B1 (fr) 1986-01-14 1987-01-13 Coussinet de glissement pour aiguillage de chemin de fer

Country Status (6)

Country Link
EP (1) EP0232726B1 (fr)
AT (1) ATE74634T1 (fr)
CH (1) CH669231A5 (fr)
DE (2) DE3778048D1 (fr)
ES (1) ES2030003T3 (fr)
ZA (1) ZA87197B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202563A (en) * 1987-03-19 1988-09-28 British Railways Board Railway switch slide baseplates
DE3743368A1 (de) * 1987-12-21 1989-07-13 Elektro Thermit Gmbh Gleitschuh fuer schienenweichen
US4890804A (en) * 1987-01-22 1990-01-02 Nippon Sharyo Seizo Kabushiki Kaisha Turnout unit for railway track
DE3904026A1 (de) * 1989-02-10 1990-08-16 Magna Holding Anstalt Gleiteinlage fuer geschlossene zungenvorrichtungen wie auch fuer gleitflaechen fuer bewegliche herzstueckspitzen, sowie verfahren zum befestigen einer derartigen gleiteinlage an dem gleitbett von rillenschienenzungenvorrichtungen
WO1990013709A1 (fr) * 1989-05-02 1990-11-15 Castolin S.A. Installation d'aiguillage et/ou de freinage de chemin de fer
US5125603A (en) * 1989-06-02 1992-06-30 Voest-Alpine Zeltweg Gesellschaft M.B.H. Sliding chair, sliding plate and ribbed plate, respectively, for railway switches or railway crossings
GB2255997A (en) * 1991-05-18 1992-11-25 Rehau Ag & Co Slide chair in a rail switch
FR2698642A1 (fr) * 1992-11-27 1994-06-03 Sncf Dispositif de montage d'une aiguille et d'un contre-aiguille sur une traverse.
US5356224A (en) * 1992-05-18 1994-10-18 Voest-Alpine Eisenbahnsysteme Aktiesengesselschaft Device for fastening slide inserts
AT501941A1 (de) * 2005-06-13 2006-12-15 Vae Gmbh Eisenbahnschienenbefestigung
FR2979925A1 (fr) * 2011-09-08 2013-03-15 Vossloh Cogifer Dispositif de manoeuvre ferroviaire sans graissage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709126A1 (de) * 1987-03-23 1988-10-13 Butzbacher Weichenbau Gmbh Miteinander wechselwirkende gleisteile
DE3805963A1 (de) * 1988-02-25 1989-09-14 Butzbacher Weichenbau Gmbh Gleitstuhl
ES2397149B1 (es) * 2011-01-12 2014-04-24 Jez Sistemas Ferroviarios, S.L. Placa para aparatos de vía de altas prestaciones

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197730A1 (en) * 1972-08-30 1974-03-29 Sixt Benno Sliding elements esp for railway line points - of iron with copper alloy coating
FR2340403A1 (fr) * 1976-02-09 1977-09-02 Faigle Heinz Appareil de voie pour vehicules ferroviaires
DE2631594B1 (de) * 1976-07-14 1977-12-29 Wilfried Ensinger Kunststoffgleitbelag fuer Schienenweichen
EP0011285A1 (fr) * 1978-11-18 1980-05-28 Wilfried Ensinger Revêtement de glissement en matière synthétique pour aiguillages
EP0113515A1 (fr) * 1982-12-02 1984-07-18 Thos. W. Ward (Railway Engineers) Ltd Agencement de plaque de glissement pour la lame aiguille de chemin de fer
DE3406726A1 (de) * 1984-02-24 1985-08-29 Wilfried 7031 Nufringen Ensinger Kunststoffgleitplatte fuer eine schienenweiche

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE879197A (fr) * 1979-10-04 1980-04-04 Gestivalmo Sa Holding Dispositif de support elastique de l'aiguille d'un aiguillage de chemin de fer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197730A1 (en) * 1972-08-30 1974-03-29 Sixt Benno Sliding elements esp for railway line points - of iron with copper alloy coating
FR2340403A1 (fr) * 1976-02-09 1977-09-02 Faigle Heinz Appareil de voie pour vehicules ferroviaires
DE2631594B1 (de) * 1976-07-14 1977-12-29 Wilfried Ensinger Kunststoffgleitbelag fuer Schienenweichen
EP0011285A1 (fr) * 1978-11-18 1980-05-28 Wilfried Ensinger Revêtement de glissement en matière synthétique pour aiguillages
EP0113515A1 (fr) * 1982-12-02 1984-07-18 Thos. W. Ward (Railway Engineers) Ltd Agencement de plaque de glissement pour la lame aiguille de chemin de fer
DE3406726A1 (de) * 1984-02-24 1985-08-29 Wilfried 7031 Nufringen Ensinger Kunststoffgleitplatte fuer eine schienenweiche

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890804A (en) * 1987-01-22 1990-01-02 Nippon Sharyo Seizo Kabushiki Kaisha Turnout unit for railway track
GB2202563B (en) * 1987-03-19 1991-08-21 British Railways Board A railway switch
GB2202563A (en) * 1987-03-19 1988-09-28 British Railways Board Railway switch slide baseplates
DE3743368A1 (de) * 1987-12-21 1989-07-13 Elektro Thermit Gmbh Gleitschuh fuer schienenweichen
US5127613A (en) * 1989-02-10 1992-07-07 Magna Holding Anstalt Rail switching device including an antifriction insert
WO1990009484A1 (fr) * 1989-02-10 1990-08-23 Magna Holding Anstalt Garniture coulissante pour dispositifs de changement de voie et pour surfaces coulissantes destinees a des pointes de c×ur de croisement mobiles, ainsi que procede pour fixer ladite garniture coulissante sur le lit coulissant des changements de voie
DE3904026A1 (de) * 1989-02-10 1990-08-16 Magna Holding Anstalt Gleiteinlage fuer geschlossene zungenvorrichtungen wie auch fuer gleitflaechen fuer bewegliche herzstueckspitzen, sowie verfahren zum befestigen einer derartigen gleiteinlage an dem gleitbett von rillenschienenzungenvorrichtungen
WO1990013709A1 (fr) * 1989-05-02 1990-11-15 Castolin S.A. Installation d'aiguillage et/ou de freinage de chemin de fer
US5125603A (en) * 1989-06-02 1992-06-30 Voest-Alpine Zeltweg Gesellschaft M.B.H. Sliding chair, sliding plate and ribbed plate, respectively, for railway switches or railway crossings
GB2255997A (en) * 1991-05-18 1992-11-25 Rehau Ag & Co Slide chair in a rail switch
GB2255997B (en) * 1991-05-18 1994-11-16 Rehau Ag & Co Slide chair in a rail switch
US5356224A (en) * 1992-05-18 1994-10-18 Voest-Alpine Eisenbahnsysteme Aktiesengesselschaft Device for fastening slide inserts
AU656265B2 (en) * 1992-05-18 1995-01-27 Voest-Alpine Eisenbahnsysteme Aktiengesellschaft Fastening device
FR2698642A1 (fr) * 1992-11-27 1994-06-03 Sncf Dispositif de montage d'une aiguille et d'un contre-aiguille sur une traverse.
AT501941A1 (de) * 2005-06-13 2006-12-15 Vae Gmbh Eisenbahnschienenbefestigung
AT501941B1 (de) * 2005-06-13 2007-02-15 Vae Gmbh Eisenbahnschienenbefestigung
FR2979925A1 (fr) * 2011-09-08 2013-03-15 Vossloh Cogifer Dispositif de manoeuvre ferroviaire sans graissage

Also Published As

Publication number Publication date
EP0232726A3 (en) 1988-09-28
ZA87197B (en) 1987-08-26
DE3778048D1 (de) 1992-05-14
DE8700566U1 (de) 1987-03-05
EP0232726B1 (fr) 1992-04-08
ATE74634T1 (de) 1992-04-15
ES2030003T3 (es) 1992-10-16
CH669231A5 (de) 1989-02-28

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