DK157180B - RAILWAY WHEELS - Google Patents
RAILWAY WHEELS Download PDFInfo
- Publication number
- DK157180B DK157180B DK002184A DK2184A DK157180B DK 157180 B DK157180 B DK 157180B DK 002184 A DK002184 A DK 002184A DK 2184 A DK2184 A DK 2184A DK 157180 B DK157180 B DK 157180B
- Authority
- DK
- Denmark
- Prior art keywords
- wheel
- flange
- cured
- wheels
- rail
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
- B60B17/0055—Wheels characterised by rail-engaging elements with non-elastic tyres (e.g. of particular profile or composition)
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Tires In General (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Description
DK 157180 BDK 157180 B
Den foreliggende opfindelse angâr et jernbanehjul, der pà sædvanlig mâde er forsynet med en Ipbebane og hjulflanger. Et sâdant jernbanehjul er kendt fra US patentskrift nr. 1.701.976.The present invention relates to a railway wheel, which is usually provided with an Ip track and wheel flanges. Such a railway wheel is known from US Patent No. 1,701,976.
5 I et sâdant jernbanehjul vil indersiden af hjulflangen pâ hjul og rin-ge (helhjul eller hjul med pâkrympede hjulringe) til skinnekpretpjer nedslides hurtigt pâ grund af den gentagne glidning mod skinnen.5 In such a railway wheel, the inside of the wheel flange on wheels and rings (whole wheels or wheels with crimped wheel rings) for rail pinchers will wear down rapidly due to the repeated sliding towards the rail.
Det er kendt, at udfpre jernbanehjul med varmhærdede flanger, og hærd-10 ningen omfatter herved hele flangen. Ulempen ved sâdanne hjul er, at temperaturen ved varmhærdningen optages forskelligt ved forskellige hjuldele, hvilket bringer det gode résultat i fare. Et problem ved en sâdan varmhærdning er tillige, at der opstâr overgangszoner til hju-lets uhærdede dele, og at der let kan opstâ afskalning og/eller revne-15 dannelse i disse overgangszoner.It is known to make rail wheels with hot-cured flanges, and the curing hereby encompasses the entire flange. The disadvantage of such wheels is that the temperature of the thermoset is absorbed differently by different wheel parts, which jeopardizes the good result. A problem with such a thermoset is also that transition zones to the uncured parts of the wheel occur and that peeling and / or cracking can easily occur in these transition zones.
Et andet problem er, at en helt gennemhærdet fl ange bliver relativ sprpd og let kan skades.Another problem is that a fully cured flange becomes relatively spread and easily damaged.
20 Det er tillige kendt at hærde fl ange og Ipbebane, og dette medfprer tillige en mindsket friktion mellem Ipbebane og skinner.20 It is also known to cure flange and IP web, and this also causes a reduced friction between IP web and rails.
Fra ovennævnte US patentskrift nr. 1.701.976 kendes der sàledes et jernbanehjul af manganholdigt stâl, og hvor flange, Ipbebane samt den 25 mod skinnen vendende sidevæg hærdes ved en temperatur under 600°C. Hærdningen af flangen og lpbebanen medfprer en ringere friktion mellem Ipbebane og skinne.Thus, from the aforementioned US Patent No. 1,701,976, a manganese-steel rail wheel is known, and where the flange, Ip web and the sidewall facing the rail are cured at a temperature below 600 ° C. The hardening of the flange and the runway results in a lower friction between the runway and the rail.
Det er formàlet med den foreliggende opfindelse at anvise et jernbane-30 hjul af den indledningsvis nævnte type, der udviser en reduceret sii-tage ved de ovenfor nævnte kritiske steder pâ hjulet, og som gpr det muligt at undgâ den sprpde flange, og som muliggpr en god friktion mellem Ipbebane og skinne.It is an object of the present invention to provide a railway wheel of the type mentioned at the outset, which exhibits a reduced clearance at the critical locations mentioned above on the wheel and which makes it possible to avoid the ruptured flange and as possible a good friction between Ipbane and rail.
35 Med henblik herpâ er jernbanehjulet ifplge opfindelsen ejendommelig ved det i den kendetegnende del af krav 1 anfprte.For this purpose, the railway wheel according to the invention is peculiar to the one claimed in the characterizing part of claim 1.
Fordelagtige udfprelsesformer for jernbanehjulet ifplge opfindelsen er omhandlet i de uselvstændige krav.Advantageous embodiments of the railway wheel according to the invention are disclosed in the dependent claims.
22
DK 157180 BDK 157180 B
If0lge opfindelsen er der tilvejebragt et jernebanehjul, hvor slitagen er nedbragt væsentligt pâ de ovenfor nævnte kritiske steder pâ hjulet. Jernbanehjulet, der kan benyttes i aile skinnekpretpjer, er særlig velegnet til trækk0ret0jer. Opfindelsens princip kan anvendes pâ aile 5 materialetyper, der benyttes til fremstilling af jernbanehjul, men opfindelsens princip lader sig dog fortrinsvis anvende pâ materialer, som let koldhærdes. Gennem koldhærdningen (under 600°C) undgâs den ovennævnte overgangszone med de deraf f0lgende ulemper. Det er desuden lettere at omdreje et jernbanehjul, som ikke er varmhærdet. Ved at be-10 grænse hærdezonen kan sprode flanger undgâs, og der kan tilvejebringes en forn0den friktion mellem l0bebane og skinne.According to the invention, a railway wheel is provided in which the wear is substantially reduced at the above-mentioned critical places on the wheel. The railway wheel, which can be used in all railroad tramways, is particularly suitable for towing vehicles. The principle of the invention can be applied to all types of materials used in the manufacture of railway wheels, but the principle of the invention can preferably be applied to materials which are easily cold hardened. Through the cure (below 600 ° C), the above-mentioned transition zone is avoided with the consequent disadvantages. Furthermore, it is easier to turn a non-thermoset railway wheel. By limiting the curing zone, brittle flanges can be avoided, and a necessary friction between tread and rail can be provided.
Som eksempel pâ en egnet koldhærdningsmetode kan der nævnes "peening" (kuglebestrâling eller koldhamring), trykpresning, trykvalsning eller 15 trykpolering.An example of a suitable cold curing method can be mentioned "peening" (ball irradiation or cold hammering), pressure pressing, pressure rolling or pressure polishing.
Som hensigtsmæssigt hjulmateriale kan der for eksempel nævnes sâkaldt Hadfieldstâl (12-16%, fortrinsvis ca. 14% Mn, < 0,8% C, < 1,0% V samt tilsætning af Ni og Mo) eller stâl med lavt kulstofindhold (< 0,10% C, 20 legeret blandt andet med Cr > 1,5% samt éventuelle tilsætninger af Mn,As suitable wheel material, for example, so-called Hadfield steels (12-16%, preferably about 14% Mn, <0.8% C, <1.0% V and addition of Ni and Mo) or low carbon steels (< 0.10% C, 20 alloys, among other things with Cr> 1.5% and optional additions of Mn,
Ni og/eller Mo).Ni and / or Mo).
Hârdheden bliver her stprst pâ overfladen og lavere længere ind i ma-terialet. Indtrængningsdybden for hârdheden kan ved sædvanlig kold-25 hærdning, afhængigt af slaghârdheden, være « 1 mm, men ved trykvalsning kan der'opnâs en hârdhedstykkelse pâ op til 3 mm.Here, the hardness stays on the surface and lower further into the material. The depth of penetration of the hardness may, in the usual cold-hardening, depending on the hardness, be «1 mm, but a hardness thickness of up to 3 mm can be obtained by pressure rolling.
Den del af hjulet, der skal hærdes, er den del, som glider mod skinne-siden. Denne del strækker sig for eksempel fra den radiait yderste del 30 af flangen eller fra dennes umiddelbare nærhed til overgangen til l0-bebanen.The part of the wheel to be hardened is the part that slides against the rail side. This portion extends, for example, from the radially outermost portion 30 of the flange or from its immediate proximity to the transition to the 10 web.
Fl anges side, der vender væk fra skinnen, skal ikke hærdes, da man el-lers ville risikere skader pâ flangen ved hjulets gang over sporskif-35 ter m.v.The flanged side facing away from the rail should not be hardened, as you would otherwise risk damaging the flange at the wheel's passage over track slides, etc.
Opfindelsen skal herefter forklares nærmere under henvisning til den medf0lgende tegning, hvor der er vist et skematisk bi11ede af profilet for et jernbanehjul.The invention will then be explained in more detail with reference to the accompanying drawing, in which a schematic illustration of the profile of a railway wheel is shown.
33
DK 157180 BDK 157180 B
En de! af et helhjul, det vil sige et i ét stykke fremstillet hjul, er vist i figuren, men opfindelsen kan tillige anvendes pà pâkrympede hjul, det vil sige hjul, hvor Itfbebanen og flangen er dannet af en pâ-krympet ydre ring. Hjulets kropdel er angivet ved 1, og hjulringen er 5 angivet ved 2. Hjulet er forsynet med en Ipbebane 4 samt en fl ange 3.And those! of a whole wheel, that is, a one-piece wheel, is shown in the figure, but the invention can also be applied to crimped wheels, that is, wheels where the web and flange are formed by a crimped outer ring. The body part of the wheel is indicated by 1 and the wheel ring is 5 by 2. The wheel is provided with an Ip track 4 and a flange 3.
Parti et fra flangen 3's top eller i dennes umiddelbare nærhed, til overgangen til Ipbebanen 4 er koldhærdet (partiet A) ved hjælp af en hvilket som helst af de ovenfor angivne fremgangsmâder kuglebestrâling, koldhamring, trykpresning, trykvalsning eller trykpolering eller en 10 kombination af disse. Ldbebanen 4 (strækningen B) forbliver uhærdet ligesom flangen 3's yderside 5.The portion one from the top or in the immediate vicinity of the flange 3 to the transition to the Ipbane 4 is cold hardened (portion A) by any of the above methods of ball irradiation, cold hammering, pressure pressing, pressure rolling or pressure polishing or a combination thereof . The lead path 4 (the line B) remains uncured as does the outside 5 of the flange 3.
Hjulet er beregnet til at blive anvendt i aile slags hjulforsynede skinnek0ret0jer, lokomotiv, vogne, o.s.v. Strækningen A kan selvf0lge-15 lig g0res kortere eller længere afhængigt af hjulets profil.The wheel is intended to be used in all kinds of wheeled rail vehicles, locomotives, wagons, etc. The stretch A can, of course, be made shorter or longer depending on the wheel profile.
20 25 30 3520 25 30 35
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8300015 | 1983-01-03 | ||
| SE8300015A SE440206B (en) | 1983-01-03 | 1983-01-03 | JERNVEGSHJUL |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK2184D0 DK2184D0 (en) | 1984-01-03 |
| DK2184A DK2184A (en) | 1984-07-04 |
| DK157180B true DK157180B (en) | 1989-11-20 |
| DK157180C DK157180C (en) | 1990-04-16 |
Family
ID=20349472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK002184A DK157180C (en) | 1983-01-03 | 1984-01-03 | RAILWAY WHEELS |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0115046B1 (en) |
| DE (1) | DE3371968D1 (en) |
| DK (1) | DK157180C (en) |
| NO (1) | NO154992C (en) |
| SE (1) | SE440206B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH685383A5 (en) * | 1992-01-14 | 1995-06-30 | Sig Schweiz Industrieges | Method of forming tyre structure of constant hardness on railway vehicle wheel |
| DE19732809C2 (en) * | 1997-07-30 | 2000-04-20 | Bochumer Verein Verkehrstechni | Track wheel with wear-optimized tread |
| NL1007759C2 (en) * | 1997-12-10 | 1999-06-11 | Univ Twente | Curved metal tread body and noise reduction method. |
| US20180318972A1 (en) * | 2015-12-22 | 2018-11-08 | Shandong Huawin Electrical & Mechanical Technology Co. | Ultrasonic machining method for improving abradability of wheel of locomotive, and applications |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1701976A (en) * | 1925-06-22 | 1929-02-12 | Taylor Wharton Iron & Steel | Method of conditioning articles of manganese steel |
| FR2161155A6 (en) * | 1970-11-23 | 1973-07-06 | Stephanois Rech |
-
1983
- 1983-01-03 SE SE8300015A patent/SE440206B/en not_active IP Right Cessation
- 1983-12-22 DE DE8383112977T patent/DE3371968D1/en not_active Expired
- 1983-12-22 EP EP83112977A patent/EP0115046B1/en not_active Expired
- 1983-12-30 NO NO834882A patent/NO154992C/en not_active IP Right Cessation
-
1984
- 1984-01-03 DK DK002184A patent/DK157180C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE8300015D0 (en) | 1983-01-03 |
| SE437354B (en) | 1985-02-25 |
| EP0115046A2 (en) | 1984-08-08 |
| SE440206B (en) | 1985-07-22 |
| DK2184D0 (en) | 1984-01-03 |
| SE8300015L (en) | 1984-07-04 |
| DE3371968D1 (en) | 1987-07-16 |
| DK2184A (en) | 1984-07-04 |
| EP0115046B1 (en) | 1987-06-10 |
| NO834882L (en) | 1984-07-04 |
| NO154992B (en) | 1986-10-20 |
| DK157180C (en) | 1990-04-16 |
| EP0115046A3 (en) | 1985-03-20 |
| NO154992C (en) | 1987-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |
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