DE622862C - Process for the production of undercut recesses in the rail guide ribs of iron railway sleepers - Google Patents
Process for the production of undercut recesses in the rail guide ribs of iron railway sleepersInfo
- Publication number
- DE622862C DE622862C DEB143973D DEB0143973D DE622862C DE 622862 C DE622862 C DE 622862C DE B143973 D DEB143973 D DE B143973D DE B0143973 D DEB0143973 D DE B0143973D DE 622862 C DE622862 C DE 622862C
- Authority
- DE
- Germany
- Prior art keywords
- guide ribs
- production
- rail guide
- undercut recesses
- railway sleepers
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K7/00—Making railway appurtenances; Making vehicle parts
- B21K7/02—Making railway appurtenances; Making vehicle parts parts for permanent way
- B21K7/08—Making railway appurtenances; Making vehicle parts parts for permanent way base plates for rails, e.g. chairs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
Nach' dem Patent 621 750 werden bei der Formung der ScMenenführungsrippen durch
Einschlagen der Wulsite ins Gesenk Rillen
gebildet, die das Auisfräsen der unterschjMtteinen
Ausnehmungen der Rippen erleichtern. Gemäß der Erfindung werden die, Unterschneidungen)
durch Eintreiben von profilierten Dornen in die in den Führungsirippen
vorgesehenen Rillen- gebildet.
Die Herstellung der Ausnehmungen durch Aufdornen bietet gegenüber dem Fräsen nicht
nur leine Verringerung der Kosten, sondern
auch eine Verdichtung des Werkstoffes und die Möglichkeit, mit einer genüngerieni Höhe
der vorgewalzten Wulste auszukommen, indem der Dorn den Werksitofi der Uniterschneddungeni
nach oben treibt. Die Höhe der vorgewalzten Wulste kann hiernach so begrenzt sein, daß sie bei nur einmaligem
Durchgang des Walzgutes durch die ausgefrästen Walzen erreicht wird.According to the '621 750 patent, grooves are formed during the shaping of the groove guide ribs by hammering the bulge into the die, which grooves facilitate the milling out of the undercut recesses of the ribs. According to the invention, the undercuts) are formed by driving profiled mandrels into the grooves provided in the guide ribs.
Compared to milling, the production of the recesses by flaring offers not only a reduction in costs, but also a compression of the material and the possibility of getting by with a sufficient height of the pre-rolled beads, as the mandrel drives the factory position of the Uniterschneddungeni upwards. The height of the pre-rolled beads can then be limited so that it is reached with only one passage of the rolling stock through the milled rollers.
Das Verfahren- ist in der Zeichnung beispielsweise veranschaulicht.The method is illustrated in the drawing, for example.
Abb. ι zeigt einen Querschnitt durch die Schwelle nach Linie I-1 der Abb. 3, und zwar vor dem Aufdornen,Fig. Ι shows a cross section through the threshold along line I-1 of Fig. 3, namely before the thorn,
Abb. 2 zeigt denselben Querschnitt nach dem Aufdornen der Ausnehmung,Fig. 2 shows the same cross-section after the recess has been flared,
Abb. 3 zeigt einen Längsschnitt durch die Schwelle am Scüenenauflager.Fig. 3 shows a longitudinal section through the threshold on the scene support.
Abb. 4 stellt den Dorn in Ansicht dar.Fig. 4 shows the mandrel in perspective.
Abb. 5 zeigt das Auf dorngeserik von unten gesehen in Ansicht.Fig. 5 shows a view of the mandrel escalator from below.
Vor dem Aufdornen wird das Gesenk b (Abb. 5) zwischen die Führ-ungsrippeni c gesetzt. Das Gesenk & besitzt in seinem, unteren Teil eine Nutfii, in die der Dorne eingetrieben wird. Der Dorne besteht aus dem mittleren Kernstück/, dessen Querschnitt dem Querschnitt der Rille α entspricht, und aus seitlichen Ansätzen, die dem Profil der- fertigen Ausnehmung entsprechen und" nach dem einen Dornende zu, zweckmäßig in gewisser Entfernung vom Dornende nach der Unterkante des Kernstückes/ zu, spitz auslaufen.Before expanding, the die b (Fig. 5) is placed between the guide ribs i c . The lower part of the die has a groove into which the mandrel is driven. The mandrel consists of the central core piece /, the cross section of which corresponds to the cross section of the groove α , and of lateral approaches that correspond to the profile of the finished recess and "towards the end of the mandrel, expediently at a certain distance from the mandrel end to the lower edge of the core piece / to taper off to a point.
Das Gesenk & kann auch aus zwei oder mehreren Stücken bestehen, ebenso können an Stelle eines Domes auch mehrere Dorne vorgesehen werden.The die & can also consist of two or more pieces, as well Instead of a dome, several mandrels can be provided.
Selbstverständlich können in gleicher Weise auch die Ausnehmungen in den Rippen von Unterlegplatten hergestellt werden.Of course, the recesses in the ribs of Shim plates are produced.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB143973D DE622862C (en) | Process for the production of undercut recesses in the rail guide ribs of iron railway sleepers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB143973D DE622862C (en) | Process for the production of undercut recesses in the rail guide ribs of iron railway sleepers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE622862C true DE622862C (en) | 1935-12-07 |
Family
ID=7000681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB143973D Expired DE622862C (en) | Process for the production of undercut recesses in the rail guide ribs of iron railway sleepers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE622862C (en) |
-
0
- DE DEB143973D patent/DE622862C/en not_active Expired
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