DE864885C - A set of wheels welded together from a hollow middle part and two wheel discs, especially for rail vehicles - Google Patents

A set of wheels welded together from a hollow middle part and two wheel discs, especially for rail vehicles

Info

Publication number
DE864885C
DE864885C DEK1913D DEK0001913D DE864885C DE 864885 C DE864885 C DE 864885C DE K1913 D DEK1913 D DE K1913D DE K0001913 D DEK0001913 D DE K0001913D DE 864885 C DE864885 C DE 864885C
Authority
DE
Germany
Prior art keywords
hollow middle
welded
rail vehicles
welds
welded together
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
Application number
DEK1913D
Other languages
German (de)
Inventor
Helmut Dipl-Ing Koenig
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.)
Deutsche Bundesbank
Original Assignee
Deutsche Bundesbank
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 Deutsche Bundesbank filed Critical Deutsche Bundesbank
Priority to DEK1913D priority Critical patent/DE864885C/en
Application granted granted Critical
Publication of DE864885C publication Critical patent/DE864885C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/02Dead axles, i.e. not transmitting torque
    • B60B35/08Dead axles, i.e. not transmitting torque of closed hollow section

Description

Bekannt sind Leichtradsätze mit dreiteiligen, von Hohlkörpern gebildeten Achswellen und Festrädern, bei denen die Achswellenteile entsprechende flanschartige Erweiterungen haben, wobei, die Erweiterungen die Radscheibe zwischen sich fassen und .mittels Schrauben miteinander und mit der Radscheibe verbunden sind. Auch Radsätze mit Hohlachsen, die durch Preßsitzverbindungen mit den Radkörpern verbunden sind, sind bekannt.Light wheel sets with three-part, formed by hollow bodies are known Axle shafts and fixed gears, in which the axle shaft parts have corresponding flange-like Have extensions, the extensions gripping the wheel disc between them and .by means of screws are connected to one another and to the wheel disc. Also wheelsets with hollow axles that are connected to the wheel bodies by press-fit connections, are known.

Bekannt sind ferner Radsätze, die aus mehreren Teilen zusammengeschweißt sind. Bei Radsätzen dieser Art, die aus einer durchgehenden Hohlachswelle- und zwei getrennten Radkörperscheiben zusammengeschweißt sind, ist die Hohlachswelle an beiden Seiten mit je einem einen Teil der Radscheibe bildenden, nabenartigen Ansatz versehen. Die Schweißstellen befinden sich in -besonders hochbeanspruchten Zonen des Radsatzes.Also known are wheel sets that are welded together from several parts are. With wheelsets of this type, which consist of a continuous hollow axle shaft and two separate wheel center washers are welded together, the hollow axle shaft is on both Each side is provided with a hub-like approach that forms part of the wheel disc. The welding points are located in particularly high-stress areas of the wheelset.

Bei Radsätzen, die aus einer Achswelle mit aüfgepreßten Scheiben bestehen, liegen die gegen Dauerbruch empfindlichsten Achsquerschnitte infolge der Näbenwirkung unter und am Innenrand der Nabe, also an einer der Untersuchung nicht ohne weiteres zugänglichen Stelle. Die ungünstige Nabenwirkung läßt sich dadurch vermeiden, daß an Stelle einer Preß- oder Schrumpfsitzverbindung zwischen Achse und Scheibe eine Schweißverbindung tritt. Schweißverbindungen sind jedoch ebenfalls empfindlich gegen Dauerbiegebeanspruchungen, insbesondere dann, wenn die Oberflächen der Schweißnähte nach der Schweißung nicht einwandfrei bearbeitet werden können.For wheelsets that consist of an axle shaft with pressed discs, are the axle cross-sections that are most sensitive to fatigue fracture due to the joint effect under and on the inner edge of the hub, so not without further ado on one of the investigations accessible place. The unfavorable hub effect can be avoided that instead of a press fit or shrink fit connection between the axle and the disc Weld connection occurs. However, welded joints are also sensitive to Continuous bending stresses, especially when the surfaces of the welds cannot be processed properly after welding.

Die Erfindung besteht demgegenüber darin, daß bei einem aus zwei Scheiben und einem dazwischen geschweißten hohlen Achsmittelteil bestehenden Radsatz die beiden Scheiben röhrfölrmige Verlängerungen haben, deren freie Enden mit dem hohlen Mittelteil unweit der- Scheiben verschweißt sind. Bei einem solchen Radsatz sind also die Schweißstellen so gelegt, daß sie einerseits weniger hoch beansprucht sind, andererseits eine einwandfreie Oberflächenbearbeitung zur Erhöhung der Dauerfestigkeit gestatten.The invention consists in the fact that one of two disks and a hollow axle center part welded in between the existing wheelset Both discs have tubular extensions, the free ends of which are hollow Middle part not far from the panes are welded. With such a wheel set are so the welds are placed in such a way that they are less stressed on the one hand, on the other hand, a perfect surface treatment to increase the fatigue strength allow.

Abb. i und :2 der Zeichnung zeigen zwei Ausführungsbeispiele im Längsschnitt.Fig. I and: 2 of the drawing show two exemplary embodiments in longitudinal section.

Mit a sind die Scheiben, mit b ihre nach der Radsatzmitte hin verlaufenden rohrförmigen Verlängerungen, finit c der hohle Mittelteil bezeichnet. Die Schweißstellen f liegen zwischen den inneren Enden der Verlängerungen b und dem Mittelteil c. Zur Verbesserung der Oberflächengüte der Schweißstellen f, z. B. durch Schleifen, Prägepolieren oder andere Verfahren, können die zu verschweißenden Stellen, wie Abb. 2 zeigt, nach innen oder außen oder nach beiden Seiten Verdickungen e aufweisen, so daß sich hierbei gleichzeitig eine Erhöhung des Widerstandsmoments im Schweißquerschnitt ergibt. Die Schweißstellen f sind fernerhin so angeordnet, däß eine Prüfung der Schweißnähte z. B. durch das Röntgenverfahren oder das Magnetverfahren ohne weiteres möglich ist.With a the disks, with b their tubular extensions running towards the center of the wheelset, finite c the hollow middle part. The welds f lie between the inner ends of the extensions b and the central part c. To improve the surface quality of the welds f, z. B. by grinding, burnishing or other processes, the points to be welded, as shown in Fig. 2, have thickenings e inwards or outwards or on both sides, so that at the same time there is an increase in the section modulus in the welding cross-section. The welds f are also arranged so that an examination of the welds z. B. is easily possible by the X-ray method or the magnetic method.

Bei Ausbildung des Radsatzes für Außenlagerung werden erfindungsgemäß die Lagerzapfen d in die Scheiben a eingepreßt (Abb. i). Da diese Preßsitze im wesentlichen Biegemomente; jedoch nur geringe horizontal wirkende Kräfte zu übertragen haben, kann . zurr Vermeidung größerer Preßvorspannungen in den Scheiben a ein verhältnismäßig geringes Preßsitzübermaß angewendet werden. Die, im Betrieb dem Verschleiß und Beschädigungen besonders stark unterworfenen Schenkel d können somit leicht ausgewechselt werden.When training the wheel set for external storage are according to the invention the journals d pressed into the washers a (Fig. i). Since these press fits essentially Bending moments; but only have to transmit small horizontally acting forces, can . to avoid greater pre-pressures in the disks a relatively low interference fit can be used. The, in operation the wear and damage Legs d that are subject to particularly great severity can thus be easily exchanged.

Claims (3)

PATENTANSPRÜCHE. i. Aus Einem hohlen Mittelteil und zwei Radscheiben zusammengeschweißter Radsatz, insbesondere für Schienenfahrzeuge, dadurch gekennzeichnet, daß die beiden Radscheiben (a) mit rohrförmigen Verlängerungen (b) versehen sind, deren freie Enden mit dem hohlen Mittelteil (c) unweit der Scheiben verschweißt sind; also an Stellen (f), die einerseits geringen Beanspruchungen ausgesetzt sind, andererseits einwandfrei bearbeitet und auf Werkstoffehler und Anrisse untersucht werden können. PATENT CLAIMS. i. From a hollow middle part and two wheel disks welded wheel set, in particular for rail vehicles, characterized in that, that the two wheel disks (a) are provided with tubular extensions (b), the free ends of which are welded to the hollow middle part (c) not far from the panes are; i.e. in places (f) that are exposed to low stresses on the one hand, on the other hand, perfectly machined and examined for material defects and cracks can be. 2. Radsatz nach Anspruch i, dadurch gekennzeichnet, daß die zu verschweißenden Teile (b, c) in der Nähe der Schweißnähte (f) mit Verdickungen (e) versehen sind. 2. Wheelset according to claim i, characterized in that the to be welded Parts (b, c) in the vicinity of the welds (f) are provided with thickenings (e). 3. Radsatz nach den Ansprüchen i und 2 in der Form eines Radsatzes mit Außenlagerung, dadurch gekennzeichnet; daß die Lagerzapfen (d) mit Rücksicht auf die Prüfmöglichkeit der Schweißstellen (f) als auswechselbare Teile in die Scheiben (a) eingepreßt sind. Angezogene Druckschriften: Deutsche Patentschriften Nr. 6o3 374, 658 358, 647 14o, 639 418, 483 218, 630 464 36o 768.3. Wheelset according to claims i and 2 in the form of a wheelset with external bearings, characterized; that the bearing journals (d) are pressed into the washers (a) as replaceable parts, taking into account the possibility of testing the welds (f). Cited publications: German patent specifications No. 6o3 374, 658 358, 647 14o, 639 418, 483 218, 630 464 36o 768.
DEK1913D 1939-06-23 1939-06-23 A set of wheels welded together from a hollow middle part and two wheel discs, especially for rail vehicles Expired DE864885C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK1913D DE864885C (en) 1939-06-23 1939-06-23 A set of wheels welded together from a hollow middle part and two wheel discs, especially for rail vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK1913D DE864885C (en) 1939-06-23 1939-06-23 A set of wheels welded together from a hollow middle part and two wheel discs, especially for rail vehicles

Publications (1)

Publication Number Publication Date
DE864885C true DE864885C (en) 1953-01-29

Family

ID=7209140

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK1913D Expired DE864885C (en) 1939-06-23 1939-06-23 A set of wheels welded together from a hollow middle part and two wheel discs, especially for rail vehicles

Country Status (1)

Country Link
DE (1) DE864885C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950565A1 (en) * 1979-12-13 1981-06-19 Mannesmann AG, 4000 Düsseldorf LIGHT WHEEL SET FOR RAIL VEHICLES AND METHOD FOR THE PRODUCTION THEREOF

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE360768C (en) * 1918-12-06 1922-10-06 Otto Ulscht Pair of wheels, especially for railway vehicles
DE483218C (en) * 1929-09-26 Metallgesellschaft Ag Light alloy wheel set for rail vehicles
DE603374C (en) * 1931-02-07 1934-09-27 Fried Krupp Akt Ges Rail vehicle wheel set with an axle made of forgeable material
DE630461C (en) * 1934-02-06 1936-05-28 Albert Huguenin Loose wheel set for rail vehicles
DE639418C (en) * 1933-11-29 1936-12-04 Richard Hochheim Hubless wheel set for rail vehicles with external bearings
DE647140C (en) * 1937-06-28 Ringfeder Gmbh Wheel set for rail vehicles
DE658358C (en) * 1938-03-26 Fried Krupp Akt Ges Light wheel set for rail vehicles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE483218C (en) * 1929-09-26 Metallgesellschaft Ag Light alloy wheel set for rail vehicles
DE647140C (en) * 1937-06-28 Ringfeder Gmbh Wheel set for rail vehicles
DE658358C (en) * 1938-03-26 Fried Krupp Akt Ges Light wheel set for rail vehicles
DE360768C (en) * 1918-12-06 1922-10-06 Otto Ulscht Pair of wheels, especially for railway vehicles
DE603374C (en) * 1931-02-07 1934-09-27 Fried Krupp Akt Ges Rail vehicle wheel set with an axle made of forgeable material
DE639418C (en) * 1933-11-29 1936-12-04 Richard Hochheim Hubless wheel set for rail vehicles with external bearings
DE630461C (en) * 1934-02-06 1936-05-28 Albert Huguenin Loose wheel set for rail vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950565A1 (en) * 1979-12-13 1981-06-19 Mannesmann AG, 4000 Düsseldorf LIGHT WHEEL SET FOR RAIL VEHICLES AND METHOD FOR THE PRODUCTION THEREOF

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