EP0887244A1 - Railcar buffer - Google Patents

Railcar buffer Download PDF

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Publication number
EP0887244A1
EP0887244A1 EP98111056A EP98111056A EP0887244A1 EP 0887244 A1 EP0887244 A1 EP 0887244A1 EP 98111056 A EP98111056 A EP 98111056A EP 98111056 A EP98111056 A EP 98111056A EP 0887244 A1 EP0887244 A1 EP 0887244A1
Authority
EP
European Patent Office
Prior art keywords
buffer
layer
plate
buffer plate
flange
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.)
Withdrawn
Application number
EP98111056A
Other languages
German (de)
French (fr)
Inventor
Karl-Josef Schröder
Dieter Mühlhahn
Michael Dr. Goedel
Rudolf Uretschläger
Klaus Mombour
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.)
Siemens Duewag Schienenfahrzeuge GmbH
Original Assignee
Siemens Duewag Schienenfahrzeuge GmbH
Duewag AG
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 Siemens Duewag Schienenfahrzeuge GmbH, Duewag AG filed Critical Siemens Duewag Schienenfahrzeuge GmbH
Publication of EP0887244A1 publication Critical patent/EP0887244A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/18—Details

Definitions

  • the invention relates to a buffer for rail vehicles with a buffer plate, the one with regard to possible low wear contact surface having.
  • the buffer plate to be equipped with a hard manganese plate (DE-PS 26 19 469) or to manufacture the buffer plates from one material, which enables surface hardening (DE-PS 43 37 257).
  • the buffer plates at their contact surfaces in relatively short time intervals to be provided with a layer of fat.
  • the invention is based on the knowledge that it is in Considering the extremely high punctiform pressings technically, the buffer plates cannot succeed hard to carry out signs of wear and noise avoided as far as possible will.
  • the invention is accordingly based on the object in A move away from previous efforts simple and inexpensive design of the buffer plate to create, by which the disadvantages shown eliminated are.
  • thermosetting fiber-reinforced plastic is provided, which is so elastically deformable that occurring Pressings are transferred across the board.
  • 1 and 2 show differently designed buffer plates in the Cross-section.
  • 3 shows the buffer plate according to FIG. 1 and 2 and possible flange contours 6 in front view.
  • the buffer plate 1 has a steel existing flange-shaped base plate 5 with a centering approach 5a for a buffer spring.
  • This base plate 5 is by mounting screws inserted in holes 5b (not shown here) with one only in FIG. 2 indicated flange 4 of the buffer tappet connected.
  • this layer 3 contains an inner adhesive zone which good adhesion to the base plate 5 of the buffer plate 1 provides.
  • Layer 3 also has a Contact area 2 of the buffer plate 1 forming the outer zone with good sliding properties (self-lubricating) and minimal wear behavior, with this outer zone also provides quiet operation. Between There is a central one in both of the above zones Support zone of layer 3, which according to the necessary mechanical strength and such an elastic Deformity is designed that on the contact surface Transfer 2 occurring pressures across the surface will.
  • the buffer plate 1 completely through the layer 3 described above thermosetting fiber-reinforced plastic, the flange-shaped base plate 5 largely on the centering projection 5a is reduced.
  • the buffer plate 1 For connecting this buffer plate 1 with the flange 4 of the buffer tappet Layer 3 contains a metal disc 7 as Abutment for the bolts 8.
  • buffer plate 1 and the buffer tappet formed in one piece or combined by welding are (see for example Fig. 1 of DE-PS 43 37 257), to be provided on the plate side with said layer 3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Laminated Bodies (AREA)

Abstract

The plastic layer (3) is so elastically deformable that occurring pressures are transmitted surface-wise. The buffer plate (1) is screwable onto a flange of the buffer thruster and is completely formed by the layer of duroplastic fibre-reinforced plastic (3). The plastic layer (3) has an outer zone containing the contact surface (2) with good slide properties and minimal wear tendencies, together with a central support zone, which is correspondingly formed to provide the necessary strength and elastic deformation characteristics. The plastic layer contains an inner adhesive zone, which provides good adhesion in relation to a steel flange-shaped basic plate (5) of the buffer plate (1).

Description

Die Erfindung betrifft einen Puffer für Schienenfahrzeuge mit einem Pufferteller, der eine im Hinblick auf möglichst geringen Verschleiß ausgeführte Kontaktfläche aufweist.The invention relates to a buffer for rail vehicles with a buffer plate, the one with regard to possible low wear contact surface having.

Vor allem bei Reisezugwagen, die im Wendezugverkehr betrieben werden, treten an den Berührpunkten der Pufferteller sehr große Kräfte und entsprechend hohe Pressungen auf, wobei in engen Gleiskurven beträchtliche Reibbewegungen ausgeführt werden. Im Hinblick auf diese Gegebenheiten ist es beispielsweise bekannt, die Pufferteller mit einer Platte aus Hartmangan auszustatten (DE-PS 26 19 469) oder die Pufferteller aus einem Werkstoff herzustellen, der eine Oberflächenhärtung ermöglicht (DE-PS 43 37 257). Zusätzlich ist es üblich, die Pufferteller an ihren Kontaktflächen in relativ kurzen Zeitintervallen mit einer Fettschicht zu versehen. Wie die Praxis zeigt, treten trotz der genannten Maßnahmen Verschleißerscheinungen - wie Materialabtrag und Riefenbildung - und auch störende Geräuschentwicklungen an den Puffertellern auf.Especially for passenger coaches that operate on push-pull trains will occur at the contact points of the buffer plates very large forces and correspondingly high pressures on, with considerable frictional movements in narrow track curves be carried out. In view of these circumstances it is known, for example, the buffer plate to be equipped with a hard manganese plate (DE-PS 26 19 469) or to manufacture the buffer plates from one material, which enables surface hardening (DE-PS 43 37 257). In addition, it is common for the buffer plates at their contact surfaces in relatively short time intervals to be provided with a layer of fat. As the Practice shows, occur despite the measures mentioned Signs of wear - such as material removal and scoring - and also annoying noise developments on the Buffer plates on.

Die Erfindung geht von der Erkenntnis aus, daß es in Anbetracht der extrem hohen punktförmigen Pressungen technisch nicht gelingen kann, die Pufferteller derart hart auszuführen, daß Verschleißerscheinungen und Geräuschentwicklungen soweit wie eben möglich vermieden werden. The invention is based on the knowledge that it is in Considering the extremely high punctiform pressings technically, the buffer plates cannot succeed hard to carry out signs of wear and noise avoided as far as possible will.

Der Erfindung liegt demgemäß die Aufgabe zugrunde, in Abkehr von den bisherigen Bemühungen eine möglichst einfache und kostengünstige Ausführung des Puffertellers zu schaffen, durch die die aufgezeigten Nachteile beseitigt sind.The invention is accordingly based on the object in A move away from previous efforts simple and inexpensive design of the buffer plate to create, by which the disadvantages shown eliminated are.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Pufferteller mit zumindest einer Schicht aus duroplastischem faserverstärktem Kunststoff versehen ist, die derart elastisch verformbar ist, daß auftretende Pressungen flächig übertragen werden.This object is achieved in that the buffer plate with at least one layer thermosetting fiber-reinforced plastic is provided, which is so elastically deformable that occurring Pressings are transferred across the board.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments of the invention are in the Subclaims specified.

Im weiteren wird die Erfindung anhand von Ausführungsbeispielen näher erläutert, die in der Zeichnung prinzipartig dargestellt sind. Fig. 1 und 2 zeigen jeweils unterschiedlich gestaltete Pufferteller im Querschnitt. Fig. 3 zeigt die Pufferteller nach Fig. 1 und 2 und mögliche Flanschkonturen 6 in Vorderansicht.Furthermore, the invention is based on exemplary embodiments explained in more detail in the drawing are shown in principle. 1 and 2 show differently designed buffer plates in the Cross-section. 3 shows the buffer plate according to FIG. 1 and 2 and possible flange contours 6 in front view.

Gemäß Fig. 1 hat der Pufferteller 1 eine aus Stahl bestehende flanschförmige Grundplatte 5 mit einem Zentrieransatz 5a für eine Pufferfeder. Diese Grundplatte 5 wird durch in Bohrungen 5b eingesetzte Befestigungsschrauben (hier nicht gezeichnet) mit einem nur in Fig. 2 angedeuteten Flansch 4 des Pufferstößels verbunden. Der Pufferteller 1 ist mit einer Schicht 3 aus duroplastischem faserverstärktem Kunststoff versehen, wobei diese Schicht 3 eine innere Klebezone enthält, die gute Haftung gegenüber der Grundplatte 5 des Puffertellers 1 erbringt. Außerdem weist die Schicht 3 eine die Kontaktfläche 2 des Puffertellers 1 bildende Außenzone mit guten Gleiteigenschaften (selbstschmierend) und minimalem Verschleißverhalten auf, wobei diese Außenzone auch einen geräuscharmen Betrieb erbringt. Zwischen den beiden vorgenannten Zonen befindet sich eine zentrale Stützzone der Schicht 3, die entsprechend der notwendigen mechanischen Festigkeit und einem derartigen elastischen Deformationsvermögen ausgelegt ist, daß an der Kontaktfläche 2 auftretende Pressungen flächig übertragen werden.1, the buffer plate 1 has a steel existing flange-shaped base plate 5 with a centering approach 5a for a buffer spring. This base plate 5 is by mounting screws inserted in holes 5b (not shown here) with one only in FIG. 2 indicated flange 4 of the buffer tappet connected. Of the Buffer plate 1 is made with a layer 3 thermosetting fiber-reinforced plastic, this layer 3 contains an inner adhesive zone which good adhesion to the base plate 5 of the buffer plate 1 provides. Layer 3 also has a Contact area 2 of the buffer plate 1 forming the outer zone with good sliding properties (self-lubricating) and minimal wear behavior, with this outer zone also provides quiet operation. Between There is a central one in both of the above zones Support zone of layer 3, which according to the necessary mechanical strength and such an elastic Deformity is designed that on the contact surface Transfer 2 occurring pressures across the surface will.

Im Ausführungsbeispiel nach Fig. 2 ist der Pufferteller 1 vollständig durch die vorbeschriebene Schicht 3 aus duroplastischem faserverstärktem Kunststoff gebildet, wobei die flanschförmige Grundplatte 5 weitestgehend auf den Zentrieransatz 5a reduziert ist. Für das Verbinden dieses Puffertellers 1 mit dem Flansch 4 des Pufferstößels enthält die Schicht 3 eine Metallscheibe 7 als Widerlager für die Schraubenbolzen 8.In the exemplary embodiment according to FIG. 2, the buffer plate 1 completely through the layer 3 described above thermosetting fiber-reinforced plastic, the flange-shaped base plate 5 largely on the centering projection 5a is reduced. For connecting this buffer plate 1 with the flange 4 of the buffer tappet Layer 3 contains a metal disc 7 as Abutment for the bolts 8.

Im übrigen ist es ohne weiteres möglich, einen Puffer, bei dem der Pufferteller 1 und der Pufferstößel einstückig ausgebildet oder durch Schweißen vereinigt sind (siehe beispielsweise Fig. 1 der DE-PS 43 37 257), tellerseitig mit der besagten Schicht 3 zu versehen.Otherwise, it is easily possible to use a buffer, where the buffer plate 1 and the buffer tappet formed in one piece or combined by welding are (see for example Fig. 1 of DE-PS 43 37 257), to be provided on the plate side with said layer 3.

Liste der BezugszeichenList of reference numbers

11
PuffertellerBuffer plate
22nd
KontaktflächeContact area
33rd
Schicht aus duroplastischem faserverstärktem KunststoffLayer of thermosetting fiber-reinforced plastic
44th
Flansch des PufferstößelsBuffer tappet flange
55
flanschförmige Grundplatte des Puffertellersflange-shaped base plate of the buffer plate
5a5a
Zentrieransatz für PufferfederCentering attachment for buffer spring
5b5b
Bohrung für BefestigungsschraubeHole for fastening screw
66
mögliche Flanschkonturenpossible flange contours
77
MetallscheibeMetal disc
88th
SchraubenbolzenBolts

Claims (4)

Puffer für Schienenfahrzeuge mit einem Pufferteller (1), der eine im Hinblick auf möglichst geringen Verschleiß ausgeführte Kontaktfläche (2) aufweist, dadurch gekennzeichnet, daß der Pufferteller (1) mit zumindest einer Schicht (3) aus duroplastischem faserverstärktem Kunststoff versehen ist, die derart elastisch verformbar ist, daß auftretende Pressungen flächig übertragen werden.Buffers for rail vehicles with a buffer plate (1) the one with regard to the lowest possible wear executed contact surface (2), thereby characterized in that the buffer plate (1) with at least a layer (3) made of thermosetting fiber-reinforced Plastic is provided, which is elastically deformable is that occurring pressures are transmitted across the surface will. Puffer nach Anspruch 1, dadurch gekennzeichnet, daß der an einen Flansch (4) des Pufferstößels anschraubbare Pufferteller (1) vollständig durch die Schicht (3) aus duroplastischem faserverstärktem Kunststoff gebildet ist.Buffer according to claim 1, characterized in that which can be screwed onto a flange (4) of the buffer tappet Buffer plate (1) completely through the layer (3) thermosetting fiber-reinforced plastic is formed. Puffer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Schicht (3) aus duroplastischem faserverstärktem Werkstoff eine die Kontaktfläche (2) beinhaltende Außenzone mit guten Gleiteigenschaften und minimalem Verschleißverhalten und eine zentrale Stützzone aufweist, die entsprechend der notwendigen Festigkeit und dem elastischen Deformationsvermögen ausgelegt ist.Buffer according to claim 1 or 2, characterized in that the layer (3) made of thermosetting fiber-reinforced material on the contact surface (2) containing outer zone with good sliding properties and minimal wear behavior and a central support zone has, which according to the necessary strength and the elastic deformability is designed. Puffer nach den Ansprüchen 1 und 3, dadurch gekennzeichnet, daß die Schicht (3) aus duroplastischem faserverstärktem Werkstoff eine innere Klebezone enthält, die gute Haftung gegenüber einer aus Stahl bestehenden flanschförmigen Grundplatte (5) des Puffertellers (1) erbringt.Buffer according to claims 1 and 3, characterized in that the layer (3) made of thermosetting fiber-reinforced material contains an inner adhesive zone, good adhesion to an existing steel flange-shaped base plate (5) of the buffer plate (1) he brings.
EP98111056A 1997-06-23 1998-06-17 Railcar buffer Withdrawn EP0887244A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19726516 1997-06-23
DE1997126516 DE19726516A1 (en) 1997-06-23 1997-06-23 Buffers for rail vehicles

Publications (1)

Publication Number Publication Date
EP0887244A1 true EP0887244A1 (en) 1998-12-30

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ID=7833320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98111056A Withdrawn EP0887244A1 (en) 1997-06-23 1998-06-17 Railcar buffer

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EP (1) EP0887244A1 (en)
DE (1) DE19726516A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1800988A1 (en) * 2005-12-22 2007-06-27 Schwab Verkehrstechnik AG Buffer for railway vehicles and method for manufacture of the buffer
CN102582650A (en) * 2012-02-28 2012-07-18 南车二七车辆有限公司 Method for repairing slave plates of rail wagons and abrasion-resistant plate for repair

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19828458A1 (en) * 1998-06-26 1999-12-30 Fischer Georg Verkehrstechnik Rail vehicle
DE50203316D1 (en) 2001-08-10 2005-07-14 Schwab Verkehrstechnik Ag Scha Buffers for rail vehicles
CH705135B1 (en) * 2011-06-21 2015-01-15 Schwab Verkehrstechnik Ag Buffer for a rail vehicle.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809137A (en) * 1956-07-21 1959-02-18 John Henry Onions Improvements in or relating to plastic inserts for railway buffer heads
CH370109A (en) * 1959-05-13 1963-06-30 Schweiz Wagons Aufzuegefab Buffers, in particular for rail vehicles
DE2619469A1 (en) 1976-05-03 1977-11-17 Ringfeder Gmbh Shock absorber for railway drawgear - has cupped washer spring type with telescopic action preventing radial relative movement
DE4332096A1 (en) * 1993-09-22 1995-03-23 Balcke Duerr Ag Buffer for railway wagons, method for coating surfaces of objects subjected to high shearing stress, and use of thermal spraying
DE4337257C1 (en) 1993-11-02 1995-04-13 Ringfeder Gmbh Sleeve buffers for rail vehicles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809137A (en) * 1956-07-21 1959-02-18 John Henry Onions Improvements in or relating to plastic inserts for railway buffer heads
CH370109A (en) * 1959-05-13 1963-06-30 Schweiz Wagons Aufzuegefab Buffers, in particular for rail vehicles
DE2619469A1 (en) 1976-05-03 1977-11-17 Ringfeder Gmbh Shock absorber for railway drawgear - has cupped washer spring type with telescopic action preventing radial relative movement
DE4332096A1 (en) * 1993-09-22 1995-03-23 Balcke Duerr Ag Buffer for railway wagons, method for coating surfaces of objects subjected to high shearing stress, and use of thermal spraying
DE4337257C1 (en) 1993-11-02 1995-04-13 Ringfeder Gmbh Sleeve buffers for rail vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1800988A1 (en) * 2005-12-22 2007-06-27 Schwab Verkehrstechnik AG Buffer for railway vehicles and method for manufacture of the buffer
CN102582650A (en) * 2012-02-28 2012-07-18 南车二七车辆有限公司 Method for repairing slave plates of rail wagons and abrasion-resistant plate for repair
CN102582650B (en) * 2012-02-28 2015-04-08 南车二七车辆有限公司 Method for repairing slave plates of rail wagons and abrasion-resistant plate for repair

Also Published As

Publication number Publication date
DE19726516A1 (en) 1998-12-24

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