EP1894808B1 - Tête d'accouplement pour véhicules ferroviaires - Google Patents

Tête d'accouplement pour véhicules ferroviaires Download PDF

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Publication number
EP1894808B1
EP1894808B1 EP07405178A EP07405178A EP1894808B1 EP 1894808 B1 EP1894808 B1 EP 1894808B1 EP 07405178 A EP07405178 A EP 07405178A EP 07405178 A EP07405178 A EP 07405178A EP 1894808 B1 EP1894808 B1 EP 1894808B1
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EP
European Patent Office
Prior art keywords
housing
centering
coupling
coupling head
crest
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.)
Active
Application number
EP07405178A
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German (de)
English (en)
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EP1894808A3 (fr
EP1894808A2 (fr
Inventor
Markus Jahns
Mike Fassbind
Robert Weber
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
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Publication date
Application filed by Schwab Verkehrstechnik AG filed Critical Schwab Verkehrstechnik AG
Publication of EP1894808A2 publication Critical patent/EP1894808A2/fr
Publication of EP1894808A3 publication Critical patent/EP1894808A3/fr
Application granted granted Critical
Publication of EP1894808B1 publication Critical patent/EP1894808B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G3/00—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
    • B61G3/16—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads rigidly connected by rotatable hook plates or discs and balancing links, the coupling members forming a parallelogram, e.g. "Scharfenberg" type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories

Definitions

  • the invention relates to a coupling head for rail vehicles according to the preamble of claim 1.
  • Generic coupling heads are used in particular in central buffer couplings, for example in so-called lug-type couplings for use and have a coupling head, the end plate is provided with at least one round centering.
  • a Zentrierhebung is generally arranged in the form of a Zentrierkuppe.
  • the centering tip is fixed to the face plate by means of a welded connection by inserting it into an opening provided for this purpose and then fixing it from the rear side of the face plate by means of a plurality of welding points.
  • the Zentrierkuppe protrudes over the front plate.
  • the respective Zentrierkuppe penetrates into the centering opening of the coupling head of the counter-coupling, whereby the two coupling heads are aligned.
  • a locking element is provided in the known coupling heads, which has a rotatable about a vertical axis latch.
  • the rotatable between a starting and a working position latch is provided on one side with a recess, while on the other side a pull rod is rotatably arranged, which is designed for positive engagement with the latch of the counter-coupling.
  • the coupling forms a kind of parallelogram in that in the coupled state, the two tie rods run parallel and the pull rod of a coupling engages in the recess of the bolt of the counter-coupling and vice versa.
  • the one bar To disengage the clutch, ie to decouple, the one bar must be rotated by a certain angle, for example, about 45 ° in a predetermined direction, so that the positive connection between the Pull rod and the respective bolt is canceled. Since the two bars are coupled to each other via the tie rods, the other latch rotates automatically when turning the one bolt, so that the adhesion between the respective tie rod and the latch of the counter-coupling is canceled by turning the one bolt and the clutch is released ,
  • the locking element of the pull rod can engage in the recess of the bolt of the counter-coupling
  • the Zentrierkuppe is provided on the front with a slot-like opening whose height is matched to the thickness of the bolt of the counter-coupling and allows the recess in the bolt of the counter-coupling with the locking element of the pull rod can be brought into engagement.
  • a disadvantage of such a coupling head is that due to the welded connection between the respective centering tip and the end plate, the region of the base point of the centering tip is susceptible to corrosion. Another disadvantage is that due to the exposed position of the Zentrierkuppe this tends to start in winter weather conditions snow and ice, which can lead to the fact that no secure coupling and locking the two coupling heads is no longer possible.
  • coupling heads with electric heaters are known, for example from the generic EP-A-1 293 409 , There is a risk that the mechanically moving parts and especially the area around the Zentrierkuppe set ice around. This is due to the fact that only the actual face plate is heated and there is a poor heat transfer between the face plate and the Zentrierkuppe by the selective welding of Zentrierkuppe on the face plate.
  • a coupling head for rail vehicles is known, which is provided with a releasable end plate.
  • a preferably made of plastic compensation element is inserted between the coupling head housing and the end plate.
  • the front plate is provided on the back with grooves in which heating elements are added.
  • the US 2 271 770 describes an automatic coupling device for vehicles, especially for mining or industrial vehicles.
  • the coupling device comprises a essentially hollow head, which is provided on the front with a hollow nose, which forms one half of the front side.
  • the other half of the front side is formed by an opening which serves to receive the nose of the counter-coupling.
  • the nose is formed integrally with the housing forming the head.
  • the coupling head is provided with a Zentrierkuppe, which is integrally formed with the dome housing of the coupling head.
  • the invention aims to develop a coupling head for rail vehicles such that it is simple and inexpensive to produce, with the housing of the coupling head is particularly suitable for receiving heating elements, and wherein the heating elements are to be arranged such that in particular the critical areas of the coupling head housing, namely the Zentrierkuppe, can be heated.
  • a coupling head according to claim 1 is provided.
  • the end plate is integrally formed together with the Zentrierkuppe and the housing is provided with a plurality of heating elements, wherein at least one at least partially leading into the Zentrierkuppe electric heating element is provided, it can be ensured that in addition to the actual housing and the exposed Schukuppe if necessary reliable heated and thus snow and ice-free can be kept.
  • FIG. 1 shows a perspective view of a formed according to the prior art housing 2 of a coupling head 1.
  • the housing 2 is provided on the front with a face plate 3, the end face 4 forms the actual coupling surface.
  • two round openings 5, 6 are embedded.
  • the one, in the present example seen in the viewing direction left opening 5, serves to receive a Zentrierkuppe 7 while the other, seen in the viewing direction right opening 6 forms the centering.
  • the Zentrierkuppe 7 is poured as a separate part and is much thinner walled than the housing 2 or the face plate 3.
  • the Zentrierkuppe 7 is exposed to high loads especially during the coupling process. Due to the two-part design, the components, according to their function, can be made of different materials.
  • the front plate 3 is also exposed during operation high loads. In coupled operation, the face plates rub against each other and therefore must also be wear-resistant.
  • On the back of the Zentrierkuppe 7 is provided with a cylindrical extension 8, whose outer diameter is matched to the diameter of the opening 5 in the face plate.
  • the Zentrierkuppe is also on the back with a circumferential, serving as a stop collar 9 provided.
  • the cylindrical extension 8 of the Zentrierkuppe 7 is fastened by means of several welding points on the centering plate 3.
  • the Fig. 2 shows a perspective view of a preferred embodiment of a coupling head housing 11 for a coupling head 10 designed according to the invention.
  • the entire housing 11, including the end plate 12 and centering tip 13, is integrally formed.
  • the end plate 12 is in turn provided with a centering opening 14 next to the centering tip 13.
  • the housing 11 is preferably made of a nodular cast iron, in particular using a sand mold.
  • ADI Austempered Ductile Iron
  • the carbon is in the form of a sphere and the matrix consists of ausferrite
  • the named material is also known as "bainitic cast iron".
  • the housing After casting, the housing is subjected to a special heat treatment in which the housing material obtains its specific properties, namely high strength, good elongation properties and good wear resistance. This makes it possible, instead of a relatively expensive tempered steel casting to use the lower-cost ADI cast iron material for the production of the housing.
  • the finished housing also has a comparatively low weight compared to steel and very good dynamic properties.
  • Fig. 3 shows a perspective view of the with a housing 11 according to Fig. 2 provided coupling head 10, wherein the housing 11 is indicated only by thin lines and in particular the locking mechanism formed by mechanical coupling and centering of the coupling head 10 can be seen.
  • a forward projecting, angled Leitarm 15 is attached, which serves in the coupling process precentering the two coupling heads to be joined together.
  • a latch 16 is arranged, which is rotatably supported on a vertically extending shaft 17. This latch 16 is rotatable between an initial and an operative position.
  • a pull rod 18 is rotatably supported on the latch 16.
  • This pull rod 18 is bow-shaped and end provided with a locking element 19.
  • the bolt 16 is provided with a recess 20 to which the pull rod of the mating coupling can engage positively with its locking element.
  • the locking element 19 of the pull rod 18 can engage in the recess of the bolt of the counter-coupling
  • the Zentrierkuppe 13 is provided on the front with a slot-like opening 21 whose height is matched to the thickness of the bolt of the counter-coupling and allows the recess in the Latch the counter-coupling with the locking element 19 of the pull rod 18 can be brought into engagement.
  • a provided with a handle 23 release lever 22 is used for manual uncoupling of the coupling head.
  • Fig. 4 shows the housing provided with heating elements according to Fig. 2 in a view from the front.
  • the housing 11 is provided with a total of seven heating elements 25, 26, 27, 28, 29, 30, 31 in the form of electric heating rods. Of these seven heating elements 25, 26, 27, 28, 29, 30, 31 four heating elements 25, 26, 27, 28 are arranged on the back of the end plate 12. The longitudinal axes of these four heating elements 25, 26, 27, 28 extend horizontally.
  • Two further heating elements 29, 30 are arranged in the rear region of the housing 11, wherein the longitudinal axes extend vertically.
  • a further heating element 31 is arranged in the region of the centering tip 13.
  • the arrangement of the seven heating elements to ensure that the entire coupling head can be heated so that even under the most adverse conditions such as freezing rain or heavy snowfall safe coupling and decoupling is possible.
  • the arrangement of the heating elements shown the housing is heated at a comparatively low power consumption. In particular, the entire surface of the housing is heated outside and inside. Thus, no additional protection such as a cover, a plastic cover to the coupling head or similar. necessary in winter operation.
  • the Fig. 5 shows the housing provided with heating elements according to Fig. 2 in a view from the side. From this representation, in particular the position of two of the four arranged on the back of the face plate 12 heating elements 25, 28 can be seen. In addition, one of the two is arranged in the rear region of the housing 11 Heating elements 29 and the obliquely leading into the Zentrierkuppe 13 heating element 31 can be seen.
  • the Fig. 6 shows the housing provided with heating elements according to Fig. 2 in a view from above. From this representation, in particular the position of the two arranged in the rear region of the housing 11 heating elements 29, 30 can be seen. In addition, two of the four arranged on the back of the face plate 12 heating elements 25, 26 and in turn the obliquely leading into the Zentrierkuppe 13 heating element 31 are clearly visible. The heating element 31 is guided through the end plate 12 into the Zentrierkuppe 13.
  • Fig. 7 finally shows a longitudinal section through the housing 11 of the coupling head according to Fig. 3 , From this illustration, in particular, the obliquely leading into the Zentrierkuppe 13 heating element 31 can be seen.
  • This heating element 31 is guided through the end plate 12 through into the wall 13a of the Zentrierkuppe 13 and serves to heat the entire Zentrierkuppe 13.
  • the opening 21 can be clogged with snow and / or ice, which would make impossible a correct locking of the coupling heads to be joined together.
  • the one-piece design of the housing 11 together with the end plate 12 and the Zentrierkuppe 13 and the arrangement of the obliquely leading into the Zentrierkuppe 13 heating element 31 favors a reliable keeping clear of the centering of ice and snow.
  • the wall thickness of the Zentrierkuppe 13 is at least in the area in which the heating element 31 is to be received, selected so that the heating element 31 is completely surrounded by the material of the Zentrierkuppe 13.
  • the respective heating element 25, 26, 27, 28, 29, 30, 31 is cylindrical and provided on the back with a hexagonal head to which a wrench can be attached.
  • a thread is arranged in front of the hexagonal head, which serves to fasten the respective heating element in a threaded bore provided in the housing 11 of the coupling head 10.
  • the diameter of the respective, provided for receiving a heating element in the housing bore is insignificantly larger than the cylindrical portion of the heating element, so that a good Heat transfer from the heating element is ensured on the housing. In any case, the heating element is always fully enclosed by the housing or the respective housing wall.
  • the total of seven heating elements ensures that the clutch works well even under adverse weather conditions by all relevant for the coupling process areas and parts of the coupling head can be heated by the heating elements so far that neither ice nor snow in any significant amount stick to it.
  • the one-piece design of the Zentrierkuppe 13 together with the face plate 12 has the additional advantage that no structural changes in the area of the weld are present, which could have a negative impact during operation under unfavorable load and / or in continuous use.
  • the one-piece design also eliminates in particular the susceptibility to corrosion in the area of the otherwise necessary interface of the two components, especially as corrosion occurs repeatedly in the centering studs which have been attached by means of welding in the region of the weld seam. In this regard, it is much easier to protect an integrally formed coupling head by an appropriate coating, such as a catalytic dip coating, and then to paint.

Claims (6)

  1. Tête d'accouplement (10) destinée à des véhicules ferroviaires, comprenant un boîtier (11) doté d'une plaque frontale (12), laquelle plaque frontale (12) est pourvue, dans la zone de la surface d'accouplement, d'une ouverture de centrage (14) et d'une calotte de centrage (13) dépassant de celle-ci, et dans laquelle au moins la plaque frontale (12) est formée d'un seul tenant conjointement avec la calotte de centrage (13), lequel boîtier (11) est doté de plusieurs éléments chauffants (25, 26, 27, 28, 29, 30, 31), caractérisée en ce qu'il est prévu au moins un éléments chauffant électrique (31) menant au moins partiellement dans la calotte de centrage (13).
  2. Tête d'accouplement (10) selon la revendication 1, caractérisée en ce que l'élément chauffant (31) servant au chauffage de la calotte de centrage (13) est amené à travers la plaque frontale (12) jusqu'à la paroi (13a) de la calotte de centrage (13).
  3. Tête d'accouplement selon la revendication 1 ou 2, caractérisée en ce que le boîtier (11) présente encore au moins quatre éléments chauffants (25, 26, 27, 28) servant au chauffage de la plaque frontale (12).
  4. Tête d'accouplement selon l'une quelconque des revendications précédentes, caractérisée en ce que le boîtier (11) présente en outre au moins deux éléments chauffants (29, 30) servant au chauffage d'une zone de boîtier arrière à tourner vers le véhicule ferroviaire.
  5. Tête d'accouplement (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que le boîtier (11) est formé d'un seul tenant avec la plaque frontale (12) et la calotte de centrage (13).
  6. Tête d'accouplement (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que le boîtier (11) et/ou la plaque frontale (12) est/sont constitués conjointement avec la calotte de centrage (13) de fonte nodulaire traitée à chaud, en particulier d'un matériau d'alliage fonte de type ADI (Austered Ductile Iron).
EP07405178A 2006-08-29 2007-06-20 Tête d'accouplement pour véhicules ferroviaires Active EP1894808B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01375/06A CH703319B1 (de) 2006-08-29 2006-08-29 Kupplungskopf für Schienenfahrzeuge.

Publications (3)

Publication Number Publication Date
EP1894808A2 EP1894808A2 (fr) 2008-03-05
EP1894808A3 EP1894808A3 (fr) 2008-11-26
EP1894808B1 true EP1894808B1 (fr) 2009-12-23

Family

ID=37734871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07405178A Active EP1894808B1 (fr) 2006-08-29 2007-06-20 Tête d'accouplement pour véhicules ferroviaires

Country Status (4)

Country Link
EP (1) EP1894808B1 (fr)
AT (1) ATE452808T1 (fr)
CH (1) CH703319B1 (fr)
DE (1) DE502007002387D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE537049T1 (de) 2009-06-17 2011-12-15 Voith Patent Gmbh Übergangskupplung zum adaptieren von kupplungen unterschiedlicher bauart
SE535890C2 (sv) * 2011-06-09 2013-02-05 Ego Int Bv Koppelhuvud med koppelhus tillverkat av plåt.
DE102014202936A1 (de) * 2014-02-18 2015-08-20 Voith Patent Gmbh Führungseinheit für Elektrokontaktkupplungen und Mittelpufferkupplungen für schienengebundene Fahrzeuge mit einer an einer Führungseinheit geführten Elektrokontaktkupplung
CN110248426B (zh) * 2018-08-22 2021-11-09 常州中车铁马科技实业有限公司 用于车钩缓冲系统的变频加热系统及其加热装置
DE102019134906A1 (de) * 2019-12-18 2021-06-24 Voith Patent Gmbh Vorrichtung zum betätigen des verschlusses einer automatischen mittelpufferkupplung
CN113173194B (zh) * 2021-04-19 2022-07-08 中车青岛四方车辆研究所有限公司 一种车钩防护装置
CH720030A2 (de) 2022-09-13 2024-03-28 Faiveley Transp Schwab Ag Verfahren zum Zentrieren bzw. Auslenken vorzugsweise eines Kupplungskopfs eines Schienenfahrzeugs, sowie eine Abstützvorrichtung zur Durchführung des Verfahrens.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29611148U1 (de) * 1996-06-26 1997-07-24 Scharfenbergkupplung Gmbh Elektrische Heizung für Mittelpufferkupplungen
DE10144838A1 (de) * 2001-09-12 2003-03-27 Scharfenbergkupplung Gmbh & Co Elektrische Heizung für den Kupplungskopf einer Mittelpufferkupplung
DK1632414T3 (da) * 2004-09-06 2008-11-17 Voith Turbo Scharfenberg Gmbh Koblingshoved med aftagelig frontplade til skinneköretöjer, samt dertil hörende fremgangsmåde til montering deraf

Also Published As

Publication number Publication date
EP1894808A3 (fr) 2008-11-26
EP1894808A2 (fr) 2008-03-05
DE502007002387D1 (de) 2010-02-04
CH703319B1 (de) 2011-12-30
ATE452808T1 (de) 2010-01-15

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