EP1083105A2 - Tampon pour véhicules ferroviaires - Google Patents

Tampon pour véhicules ferroviaires Download PDF

Info

Publication number
EP1083105A2
EP1083105A2 EP00810738A EP00810738A EP1083105A2 EP 1083105 A2 EP1083105 A2 EP 1083105A2 EP 00810738 A EP00810738 A EP 00810738A EP 00810738 A EP00810738 A EP 00810738A EP 1083105 A2 EP1083105 A2 EP 1083105A2
Authority
EP
European Patent Office
Prior art keywords
buffer
section
tappet
buffer plate
tube
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
EP00810738A
Other languages
German (de)
English (en)
Other versions
EP1083105A3 (fr
EP1083105B1 (fr
Inventor
Otto Ziegler
Elio Tommasini
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.)
Schwab Verkehrstechnik AG
Original Assignee
Schwab Verkehrstechnik 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 Schwab Verkehrstechnik AG filed Critical Schwab Verkehrstechnik AG
Publication of EP1083105A2 publication Critical patent/EP1083105A2/fr
Publication of EP1083105A3 publication Critical patent/EP1083105A3/fr
Application granted granted Critical
Publication of EP1083105B1 publication Critical patent/EP1083105B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/08—Buffers with rubber springs

Definitions

  • the invention relates to a buffer for rail vehicles according to the preamble of Claim 1 and a method for its production according to claim 8.
  • the buffer tappet usually consists of a tappet tube and the actual buffer plate, which is welded to the front end of the pushrod. So that the buffer, or the weld between the buffer plate and pusher tube, high and in particular can also absorb eccentric forces that have been used up to now Buffer with a relatively thick-walled tappet tube and a buffer plate provided with a forged collar and elaborate weld preparation.
  • the object of the invention is to make a buffer in such a way that that this can be manufactured more cost-effectively, especially by using a thin-walled one Push rod and a flat buffer plate without any collar and without Weld seam preparation should be used, with the maximum resilience of the buffer should not be restricted.
  • the pushrod in the end area facing the buffer plate has a radially widening section towards the buffer plate, its wall thickness reduced and the buffer plate can be designed very easily, without the resilience of the buffer is thereby restricted.
  • the buffer plate is welded to the radially widening section, in particular reduce the stresses acting on the welds, which is a positive Influence on the fatigue strength of the weld seam. This is primarily because that due to the radially widening section, the eccentric load occurring bending stresses can be reduced.
  • the tappet tube can be designed in addition to an outer circumferential one Weld seam also on the inside of the radially widening section circumferential weld seam can be provided without this having a negative impact to the maximum guide length between the tappet tube and the buffer sleeve has the consequence.
  • Preferred embodiments of the buffer are in dependent claims 2 circumscribed to 7.
  • claim 8 is also a method for producing a according to the claim 1 trained buffers suggested. Preferred variants of this method are described in dependent claims 8 to 12.
  • the buffer has one on the rail vehicle (not shown) to be attached to the buffer sleeve 1 and a buffer plunger 2.
  • the buffer pestle 2 is guided axially displaceably on the buffer sleeve 1 by this from Buffer tappet 2 is included radially.
  • Both the buffer sleeve 1 and the buffer tappet 2 are essentially hollow cylindrical, the buffer tappet 2 consists of a tappet tube 3 and a buffer plate 6 welded to it.
  • the buffer plate 6 designed as a cast, forged or bent part has one Base plate 6a on the front of which a wear plate 7 made of plastic is arranged is.
  • the buffer plunger 2 is in this way on the buffer sleeve via a prestressed spring assembly 13 1 supported that it counteracts the spring force in the direction of the buffer sleeve 1 is movable.
  • the latter is provided with a collar 18 on the inside, while the spring assembly 13 on the other side on the back of the base plate 6a.
  • In the extension direction is the maximum path of the buffer plunger 2 by an end stop acting snap ring 14 limited.
  • a guide pin is used to guide the spring assembly 13 12 is provided, which is fixed in a recess 11 of the base plate 6a.
  • the one-piece tappet tube 3 is preferably made by means of plastic cold forming brought into the desired shape.
  • a pipe part is used, the diameter of which is smaller than the intended one Final diameter of the buffer sleeve 1.
  • this tube part is a conical Sectioned expanding tool (not shown) inserted and moved through, so that the tappet tube 3 is expanded to the desired inner diameter becomes. Since such expanding tools are known in principle, needs not to be discussed in more detail here.
  • FIG. 2 shows a longitudinal section through a buffer, the upper half of which the prior art and its other - lower half designed according to the invention is by the tappet tube in the end area facing the buffer plate 6 is provided with a section 4 which widens radially towards the buffer plate 6.
  • the buffer designed according to the prior art has a relatively thick wall Push rod and a buffer plate 20 with a forged collar 21. Furthermore 22 complex weld preparations were made in the area of the weld seam met. While the radius r1, r2 is the same in both cases, is the distance a between the line of attack one eccentric and outside the Pusher tube acting on the buffer plate 6 force P and the outer weld shorter in the buffer designed according to the invention (a1 ⁇ a2). This makes it effective Lever for calculating the local bending stress in the buffer plate at the Buffers designed according to the invention are also shorter.
  • Such a buffer tappet can be produced very easily, quickly and inexpensively as a flat buffer plate without any collar and without welding seam preparation can be used. It lends itself particularly well to a through to use plastic cold deformation produced tappet tube 3, because in its No waste production in the form of chips.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Vibration Dampers (AREA)
EP00810738A 1999-09-08 2000-08-18 Tampon pour véhicules ferroviaires Expired - Lifetime EP1083105B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19942775 1999-09-08
DE19942775 1999-09-08

Publications (3)

Publication Number Publication Date
EP1083105A2 true EP1083105A2 (fr) 2001-03-14
EP1083105A3 EP1083105A3 (fr) 2001-04-18
EP1083105B1 EP1083105B1 (fr) 2004-10-13

Family

ID=7921149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810738A Expired - Lifetime EP1083105B1 (fr) 1999-09-08 2000-08-18 Tampon pour véhicules ferroviaires

Country Status (4)

Country Link
EP (1) EP1083105B1 (fr)
AT (1) ATE279346T1 (fr)
DE (1) DE50008207D1 (fr)
ES (1) ES2230052T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10244330A1 (de) * 2002-09-23 2004-04-01 Alstom Lhb Gmbh Puffer für Schienenfahrzeuge mit feststehender Pufferhülse und längsverschieblichem Pufferstößel
EP1800988A1 (fr) 2005-12-22 2007-06-27 Schwab Verkehrstechnik AG Tampon pour véhicules ferroviaires et procédé pour la fabrication du tampon
EP1857343A2 (fr) 2006-05-15 2007-11-21 Schwab Verkehrstechnik AG Tampon pour véhicules sur rail
WO2016000602A1 (fr) * 2014-06-30 2016-01-07 常州南车铁马科技实业有限公司 Tampon d'attelage destiné à un véhicule ferroviaire
CN111891169A (zh) * 2020-08-12 2020-11-06 中车株洲电力机车有限公司 一种轨道交通车辆车钩缓冲吸能装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB129084A (en) * 1918-06-28 1919-06-30 C Coupler Ltd Ab Improvements relating to Buffers for Railway or like Vehicles.
GB240659A (en) * 1924-10-23 1925-10-08 Grahame Hardie Thomson Improvements in and connected with plungers of buffers
NL120634C (fr) * 1959-05-18

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10244330A1 (de) * 2002-09-23 2004-04-01 Alstom Lhb Gmbh Puffer für Schienenfahrzeuge mit feststehender Pufferhülse und längsverschieblichem Pufferstößel
EP1800988A1 (fr) 2005-12-22 2007-06-27 Schwab Verkehrstechnik AG Tampon pour véhicules ferroviaires et procédé pour la fabrication du tampon
EP1857343A2 (fr) 2006-05-15 2007-11-21 Schwab Verkehrstechnik AG Tampon pour véhicules sur rail
EP1857343A3 (fr) * 2006-05-15 2008-10-08 Schwab Verkehrstechnik AG Tampon pour véhicules sur rail
WO2016000602A1 (fr) * 2014-06-30 2016-01-07 常州南车铁马科技实业有限公司 Tampon d'attelage destiné à un véhicule ferroviaire
CN111891169A (zh) * 2020-08-12 2020-11-06 中车株洲电力机车有限公司 一种轨道交通车辆车钩缓冲吸能装置

Also Published As

Publication number Publication date
ATE279346T1 (de) 2004-10-15
EP1083105A3 (fr) 2001-04-18
DE50008207D1 (de) 2004-11-18
EP1083105B1 (fr) 2004-10-13
ES2230052T3 (es) 2005-05-01

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