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 vehiclesInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/02—Dead axles, i.e. not transmitting torque
- B60B35/08—Dead axles, i.e. not transmitting torque of closed hollow section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
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)
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)
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)
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 |
-
1939
- 1939-06-23 DE DEK1913D patent/DE864885C/en not_active Expired
Patent Citations (7)
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)
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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