EP0425610B1 - Eisenbahn-weichenanlage bzw. gleisbremsanlage - Google Patents

Eisenbahn-weichenanlage bzw. gleisbremsanlage Download PDF

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Publication number
EP0425610B1
EP0425610B1 EP19900906109 EP90906109A EP0425610B1 EP 0425610 B1 EP0425610 B1 EP 0425610B1 EP 19900906109 EP19900906109 EP 19900906109 EP 90906109 A EP90906109 A EP 90906109A EP 0425610 B1 EP0425610 B1 EP 0425610B1
Authority
EP
European Patent Office
Prior art keywords
bearing surface
constituted
movement
railway
bearing
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.)
Expired - Lifetime
Application number
EP19900906109
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0425610A1 (de
Inventor
Paul Lüscher
Jean-Pierre LÖLIGER
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.)
ECG Immobilier SA
Original Assignee
Castolin SA
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 Castolin SA filed Critical Castolin SA
Publication of EP0425610A1 publication Critical patent/EP0425610A1/de
Application granted granted Critical
Publication of EP0425610B1 publication Critical patent/EP0425610B1/de
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

Definitions

  • the present invention relates to a railway switch system with switch tongues, each of which can be displaced with a bearing surface on a corresponding horizontal bearing surface of a switch saddle, the bearing surface of each switch saddle consisting of a plurality of discrete partial bearing surfaces which are arranged discontinuously in the direction of movement of the switch tongue.
  • the invention further relates to a railroad track brake system with brake beams mounted on both sides of a rail, each of which can be displaced with a bearing surface on a corresponding horizontal bearing surface of a fixed bearing body, the bearing surface of each brake beam consisting of a plurality of discrete part bearing surfaces which are in the direction of movement of the brake beam are continuously arranged.
  • a railway switch system of the type mentioned above is known from EP-A-0232726.
  • Disc-shaped sliding elements made of a self-lubricating material are used in a sheet metal frame with openings, which represent discrete partial bearing surfaces. These sliding elements are manufactured, for example, by sintering or casting and can be replaced individually if necessary.
  • the object of the invention is to provide systems of the type mentioned which can be provided with means for achieving low frictional resistance at low cost and labor and which meet all requirements for functional reliability even under the most difficult environmental conditions.
  • the partial bearing surfaces are formed by elongated coating parts which are applied to the switch saddle by means of a thermal application process and which run parallel to one another and at least in sections inclined against the direction of movement.
  • the part of the bearing surfaces are formed according to the invention by elongated coating parts which are applied to the brake beam by means of a thermal application process and which run parallel to one another and at least in sections inclined against the direction of movement.
  • the coating parts can be formed by welding beads or applied by thermal spraying.
  • the coating parts preferably consist of an alloy of the following composition in percent by weight: while the corresponding counter bearing surface consists of low-alloy steel.
  • the present bearing arrangements are characterized by a particularly low frictional resistance and enable a quick and problem-free response even with intermittent operation with long interruption intervals.
  • Fig. 1 shows the usual arrangement of a track brake system, in which 1.2 brake beam pairs 3.4 and 5.6 are mounted horizontally, perpendicular to the rails on both sides of the rails.
  • the brake bars such as 3, 4 rest on corresponding fixed bearing bodies 7, 8 and have guide bolts, such as 9, 10, which pass through openings in the bearing bodies.
  • the actuating elements for moving the brake beam with respect to the wheel rim of a wheel indicated by 11 are not shown.
  • the contacting flat bearing surfaces of a brake beam-bearing body pair such as 3.7 form a plain bearing, the sliding surfaces of the bearing body 7 being a flat, continuous surface, namely the surface of the bearing body, which generally consists of low-alloy steel.
  • the sliding surface of the brake beam can be seen in the perspective view of such a beam 3 in FIG. 3. Accordingly, the sliding surface consists of discrete partial bearing surfaces such as 12, which are arranged discontinuously in the direction of movement of the bar indicated by the arrow F.
  • These partial storage areas will be For example, formed by sweat caterpillars which run parallel to one another at an angle to the direction of movement, but other coating parts applied by a thermal application process, such as thermal spraying, can also form such partial bearing surfaces.
  • the inclination of the welding beads or coating parts 12 against the direction of movement F of the beam is essential to achieve a low frictional resistance as well as the very short, necessary response speed and the functional reliability with intermittent operation. Dust, sand and other particles are stripped from the discontinuous part-bearing surfaces during the movement thereof and removed via the gaps between these parts during the movement of the bar.
  • composition of the coating material mentioned either makes lubrication superfluous or allows it to be kept to a very limited extent. This is very important in terms of maintenance and pollution of the environment. Another advantage is that considerably less energy is required to actuate the brake, which means that operating and system costs can be reduced.
  • FIG. 4 shows a turnout saddle in plan view, the bearing surface 13 of which is formed by welding beads applied obliquely to the direction of movement of the turnout tongue, not shown.
  • This creates partial storage areas again, from which dust and other solid particles are wiped off when the switch tongue moves, accumulate in the spaces between the coating parts and are removed from there on a natural leeg. This can prevent the formation of reefs on the sliding surfaces, which is otherwise inevitable, and wear can be kept to a minimum.
  • the associated reduction in frictional resistance allows a drastic reduction in the lubrication requirements in such systems. Not ultimately, this also results in a considerable reduction in the dangers for the maintenance personnel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Braking Arrangements (AREA)
EP19900906109 1989-05-02 1990-05-02 Eisenbahn-weichenanlage bzw. gleisbremsanlage Expired - Lifetime EP0425610B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1673/89 1989-05-02
CH167389A CH682161A5 (no) 1989-05-02 1989-05-02

Publications (2)

Publication Number Publication Date
EP0425610A1 EP0425610A1 (de) 1991-05-08
EP0425610B1 true EP0425610B1 (de) 1993-04-21

Family

ID=4215927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900906109 Expired - Lifetime EP0425610B1 (de) 1989-05-02 1990-05-02 Eisenbahn-weichenanlage bzw. gleisbremsanlage

Country Status (3)

Country Link
EP (1) EP0425610B1 (no)
CH (1) CH682161A5 (no)
WO (1) WO1990013709A1 (no)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093211A (en) * 1960-08-18 1963-06-11 Thyssen Huette Ag Beam retarder with brake beams supported by stirrups
AT314578B (de) * 1972-08-30 1974-04-10 Sixt Dipl Ing Benno Verbundkörper
LU75283A1 (no) * 1976-07-01 1978-02-08
DE2631594C2 (de) * 1976-07-14 1978-09-28 Wilfried 7031 Nufringen Ensinger Kunststoffgleitbelag für Schienenweichen
CH669231A5 (de) * 1986-01-14 1989-02-28 Magna Holding Anstalt Gleitstuhl fuer weichen und kreuzungen.
JPH0421841Y2 (no) * 1987-01-22 1992-05-19

Also Published As

Publication number Publication date
WO1990013709A1 (de) 1990-11-15
CH682161A5 (no) 1993-07-30
EP0425610A1 (de) 1991-05-08

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