EP1379709B1 - Procede destine a eviter des degats d'ajustement force sur des essieux montes, notamment sur des essieux montes de vehicules sur rails - Google Patents

Procede destine a eviter des degats d'ajustement force sur des essieux montes, notamment sur des essieux montes de vehicules sur rails Download PDF

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Publication number
EP1379709B1
EP1379709B1 EP02704757A EP02704757A EP1379709B1 EP 1379709 B1 EP1379709 B1 EP 1379709B1 EP 02704757 A EP02704757 A EP 02704757A EP 02704757 A EP02704757 A EP 02704757A EP 1379709 B1 EP1379709 B1 EP 1379709B1
Authority
EP
European Patent Office
Prior art keywords
wheelset
wheelsets
plasma
axle
longitudinally
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
EP02704757A
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German (de)
English (en)
Other versions
EP1379709A1 (fr
Inventor
Thomas Kuttner
Norbert Stauder
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.)
DB Fernverkehr AG
DB Regio AG
Railion Deutschland AG
Original Assignee
DB Fernverkehr AG
DB Regio AG
Railion Deutschland 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 DB Fernverkehr AG, DB Regio AG, Railion Deutschland AG filed Critical DB Fernverkehr AG
Publication of EP1379709A1 publication Critical patent/EP1379709A1/fr
Application granted granted Critical
Publication of EP1379709B1 publication Critical patent/EP1379709B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F15/00—Axle-boxes
    • B61F15/20—Details
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying

Definitions

  • the invention relates to a method for preventing interference fit damage Wheel sets, in particular on wheelsets of rail vehicles.
  • DE-OS 23 46 144 a light metal disc with steel bandage is connected by a conical seat with two-component adhesive.
  • a bush is used, which is softer than the shaft and is shrunk into the wheel hub. This combination is shrunk onto the shaft again.
  • DE-OS 23 54 206 a Klebschrumpfriv is presented.
  • the solid wheels have a special shape, so that in a press or shrink fit heat entries through the block brake up to about 300 ° C cause no track gauge changes or loosening of the discs.
  • DE-OS 23 63 403 protrudes at a normal pressure, the hub on the world seat addition, so that at this point an elastic mass against penetration can be introduced by moisture.
  • the hardenable steel shafts have parallel in the axial direction, d. H. in the pressing force direction extending traces of hardening, in particular laser hardening traces of Solid phase with a Martensit Modell on.
  • non-metallic-organic layers are not a friction reduction for multiple joining and loosening of longitudinal press connections designed.
  • the contact pressure is in this application due to completely different physical Ratios in turn by orders of magnitude below the joining association Shaft-hub.
  • the goal of this solution is a reduction the running-in behavior of slide bearings in the area of so-called mixed friction. The results are not comparable to those of wheelsets.
  • From DE 38 13 803 A1 is a layer material or a layered piece and a process for its preparation is known in which on the surface of a solid support layer, a functional layer, in particular a sliding layer is applied.
  • the layer is by means of the known air plasma spraying applied. It should be noted that when air plasma spraying in difference For plasma ion implantation a wire or powder in one Plasma flame is melted and solidified on the workpiece surface.
  • the spray coatings have a thickness in the range of several 100 micrometers and do not go through the applied method of spraying any chemical Bond with the base material.
  • DE 199 35 053 C2 discloses a method for forming a film from ultrafine particles, in which by simply coating in a vacuum chamber, a substrate is applied to a surface.
  • the Procedure definitely does not work under atmospheric conditions. An implantation Particles on a surface do not occur. Also with this Procedure, the adjustment of the surface microtopography is not carried out a mechanical processing.
  • the invention has for its object to develop a method which Workplace and environmentally friendly, and energy-efficient and cost-effective the wheel seats protects against press damage.
  • This procedure should be in the existing Insert maintenance technology and without constructive changes Wheelset types (oversizes) and the joining method according to UIC 813.
  • the method should be one with the currently used Manufacturing and joining processes comparable high security against fatigue fractures as well as comparably high transmission capacity for forces and moments Offer.
  • the joining of the wheel set takes place in the longitudinal compression method.
  • the plasma ion implantation method on the surface of the Radsatzwelle applied powder, in particular sulfide-containing powder is in a sliding layer thickness in the single-digit micrometer range, preferably of 50 nm applied to> 2 microns.
  • the plasma surface treatment can be several times during the maintenance process be performed.
  • the solid lubricant is on the rotating Wheelset with a feed of 5 - 50 mm / min., Preferably 10 mm / min. applied.
  • the cylindrical end of the Radsitzes is with an optimized feed in the first step, twisted or ground lengthwise from outside to inside.
  • the conical end portion of the Radsitzes is, however, from the inside out longitudinally twisted or ground.
  • An emerging transition area will smoothed and / or rounded.
  • the device for carrying out the method is characterized in that that the device is preferably a lathe and the longitudinally rotated or ground wheel set shaft further into a Plasmalonenimplantationsstrom is involved, with reactive gas as Carrier gas fed plasma discharge under atmospheric pressure a solid lubricant powder on the shaft, the plasma discharge preferably is directed at 90 ° to the rotating shaft.
  • the plasma discharge is at a distance of 20-80 mm, preferably 30 mm, away from the wheelset shaft with a feed to the surface provided the wheelset shaft, so that the plasma jet a larger area can brush.
  • the device for plasma discharge is preferably attached to a support of a lathe or similar device. Due to the plasma treatment, the solid lubricant particles are implanted in the surface and cause a solid lubrication just where the lubricant film of the pressing aid tears off. With the reaction gas used as the carrier gas diffuses this or its inhibitors in the surface of the wheel seat and cause the increase in hardness additionally increased resistance to the occurrence of press marks.
  • the wheelset is longitudinally compressed using preferably a molybdenum disulphide paste as a pressing aid.
  • a pre-treatment adhesion value against loosening in the longitudinal direction ⁇ II of max. 0.15 and a coefficient of adhesion against slipping ⁇ rl , of max. 0.12 achieved.
  • the ion implantation system can be integrated into the manufacturing process due to short treatment times (minutes) and low space and energy requirements. It is possible to repeat the plasma ion implantation, if in the maintenance process z. B. a diameter adjustment of the wheel seat is necessary. Likewise, the process can equally be used in new production and maintenance.
  • the device according to the invention For workplace and environmentally friendly Charakerizing the device according to the invention, the use of non-toxic gases, the very low noise of the Plamaimplantationsstrom, the avoidance of elaborate electrical protection measures and the absence of special devices for industry standard protection of the 230/400 V network contributes.
  • the wheel seats of a wheel set shaft became treated, wherein the plasma implantation system on the support of a lathe was attached.
  • the interference fit dimensions were chosen such that a Wheel seat the lower limit and a wheel seat the upper limit of the permissible Press fit oversizes according to UIC 813 embodied.
  • the carrier gas is mixed with the solid lubricant particles (3) by a high frequency voltage and converted into an ionized cold plasma state.
  • the ionized reaction gas plasma (5) is directed to the wheel seat (6) of the rotating wheelset shaft (7).
  • the translational movement of the plasma discharge treats the entire surface of the wheel seat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Rolling Contact Bearings (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Lubricants (AREA)

Claims (13)

  1. Procédé permettant d'éviter les détériorations d'ajustements par presse sur les essieux, notamment sur les essieux de véhicules ferroviaires, un traitement de la surface d'un arbre d'essieu étant réalisé et l'essieu étant assemblé,
    caractérisé en ce que
    préalablement, au cours d'au moins une étape, l'arbre d'essieu est tourné ou rectifié longitudinalement à son extrémité cylindrique et conique et
    que la transition formée est aplanie et/ou arrondie, de sorte que
    le traitement de la surface de l'arbre d'essieu est réalisé au moyen d'un procédé d'implantation d'ions par plasma de manière à ce que, sous pression atmosphérique, au moyen d'un plasma froid comportant un gaz apte à réaction faisant office de gaz porteur, une poudre contenant du sulfure et réduisant le coefficient de frottement soit appliquée sur l'arbre d'essieu en rotation.
  2. Procédé selon la revendication 1, caractérisé en ce que l'assemblage de l'essieu est réalisé par procédé de presse longitudinal.
  3. Procédé selon les revendications 1 et 2, caractérisé en ce que le traitement au plasma est réalisé plusieurs fois dans le processus d'entretien de l'arbre d'essieu.
  4. Procédé selon les revendications 1 à 3, caractérisé en ce que les particules de graisse solide sont appliquées par le jet plasma sous forme ionisée sur la surface de l'arbre d'essieu en rotation avec une avance de 5 à 50 mm/min., de préférence 10 mm/min.
  5. Procédé selon les revendications 1 à 4, caractérisé en ce que, au cours d'une première étape, la zone cylindrique de l'ajustement des roues est tournée ou rectifiée longitudinalement de l'extérieur vers l'intérieur avec une faible avance de 5 à 50 mm/min.
  6. Procédé selon les revendications 1 à 5, caractérisé en ce que, au cours d'une deuxième étape, l'extrémité cylindrique de l'ajustement des roues est tournée ou rectifiée longitudinalement de l'intérieur vers l'extérieur avec une faible avance.
  7. Procédé selon les revendications 1 à 6, caractérisé en ce que la transition entre la zone cylindrique de l'ajustement des roues et l'extrémité conique sont arrondies en fonction des besoins.
  8. Dispositif de réalisation du procédé permettant d'éviter des détériorations liées à la presse sur des essieux, notamment des essieux de véhicules ferroviaires, un arbre d'essieu s'appuyant en rotation dans un dispositif, caractérisé en ce que le dispositif est un tour et que l'arbre d'essieu tourné ou rectifié longitudinalement est de plus incorporé dans une installation d'implantation d'ions par plasma, dont le déchargeur de plasma alimenté en gaz apte à la réaction faisant office de gaz porteur applique sous pression atmosphérique une poudre de graisse solide sur l'arbre, le déchargeur de plasma étant orienté de préférence suivant un angle de 90° par rapport à l'arbre en rotation.
  9. Dispositif selon la revendication 8, caractérisé en ce que l'installation d'implantation d'ions par plasma est disposée à une distance de 20 à 80 mm, de préférence 30 mm, de l'arbre d'essieu.
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce que l'arbre d'essieu en rotation est pourvu d'un système d'avance pour le déchargeur de plasma.
  11. Dispositif selon les revendications 8 à 10, caractérisé en ce que le déchargeur de plasma est fixé sur le support du tour à utiliser de préférence.
  12. Dispositif selon les revendications 10 à 11, caractérisé en ce que les matériaux et gaz utilisés ne sont pas dangereux pour la santé, ne risquent pas de s'enflammer, ne sont pas explosifs et exigent peu de main d'oeuvre.
  13. Dispositif selon les revendications 10 à 12, caractérisé en ce qu'il ne nécessite pas de dispositifs de sécurité usuels dans l'industrie pour le réseau 230/400 V.
EP02704757A 2001-04-19 2002-03-14 Procede destine a eviter des degats d'ajustement force sur des essieux montes, notamment sur des essieux montes de vehicules sur rails Expired - Lifetime EP1379709B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10119309 2001-04-19
DE10119309A DE10119309C1 (de) 2001-04-19 2001-04-19 Verfahren zur Vermeidung von Presssitzschäden an Radsätzen, insbesondere an Radsätzen von Schienenfahrzeugen
PCT/EP2002/002837 WO2002086182A1 (fr) 2001-04-19 2002-03-14 Procede destine a eviter des degats d'ajustement force sur des essieux montes, notamment sur des essieux montes de vehicules sur rails

Publications (2)

Publication Number Publication Date
EP1379709A1 EP1379709A1 (fr) 2004-01-14
EP1379709B1 true EP1379709B1 (fr) 2005-06-01

Family

ID=7682044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02704757A Expired - Lifetime EP1379709B1 (fr) 2001-04-19 2002-03-14 Procede destine a eviter des degats d'ajustement force sur des essieux montes, notamment sur des essieux montes de vehicules sur rails

Country Status (6)

Country Link
EP (1) EP1379709B1 (fr)
AT (1) ATE296906T1 (fr)
CZ (1) CZ305025B6 (fr)
DE (2) DE10119309C1 (fr)
ES (1) ES2240699T3 (fr)
WO (1) WO2002086182A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024028101A1 (fr) 2022-08-02 2024-02-08 Gutehoffnungshütte Radsatz Gmbh Essieu monté comprenant un raccordement à ajustement par pression pour des véhicules ferroviaires

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026713A1 (de) * 2005-06-09 2006-12-14 Volkswagen Ag Verfahren zur Verbindung einer Wellenkomponente mit einer Nabenkomponente und Welle-Nabe-Zusammenbau
DE102010022594A1 (de) * 2010-05-31 2011-12-01 Siemens Aktiengesellschaft Radsatzwelle für ein schienengebundenes Fahrzeug mit Steinschlagschutz und Verfahren zu deren Herstellung

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US3632368A (en) * 1970-11-12 1972-01-04 Lubrication Sciences Inc Lubricant coated bearing and method
SE369098B (fr) * 1972-12-19 1974-08-05 Asea Ab
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024028101A1 (fr) 2022-08-02 2024-02-08 Gutehoffnungshütte Radsatz Gmbh Essieu monté comprenant un raccordement à ajustement par pression pour des véhicules ferroviaires

Also Published As

Publication number Publication date
CZ305025B6 (cs) 2015-04-01
DE10119309C1 (de) 2003-02-06
EP1379709A1 (fr) 2004-01-14
ES2240699T3 (es) 2005-10-16
CZ20032851A3 (en) 2004-04-14
WO2002086182A1 (fr) 2002-10-31
ATE296906T1 (de) 2005-06-15
DE50203281D1 (de) 2005-07-07

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