DIN 34311-1977 Boring for centring pins in hollow-drilled shafts of wheel sets《轮副空心钻轴中定心销的镗孔》.pdf

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1、DINI DIN 34311 77 2794442 00bLSb 707 DK 62-229.3 : 629.4Za.UZ/.I I DEUTSCHE NORMEN April 1977 a U c 1. a a I c E 2 - u c u 2 L - a * c 2 Il r C a 6 E c c C c L C .; $ 3 2 a 4 U a 1 U 2 .c m z Bohr un g f U r Zentrier bolzen DIN - I in hohlgebohrten Radsatzwellen I 34311 Boring for centring pins in h

2、ollow-drilled shafts of wheel sets Forage pour boulons de centrage dans des axes dessieux alss In dieser Norm sind die Mae fr eine Bohrung fr Zentrierbolzen in hohlgebohrten Radsatzwellen fr elektrische Triebfahrzeuge festgelegt. Mae in mm Zulssige Abweichungen fr Mae ohne Toleranzangaben: mittel DI

3、N 7168 1) Der Kegel 1 : 50 ist nach Lehre herzustellen 2) Ausfrsung fr die Sicherung des Wlzlagers Erluterungen Da die Hohlbohrungen in den Radsatzwellen der Neubauserien, z. B. E 103, 110, 112, 139, 140, 150 und 151 einen Rostschutzfilm erhalten, sind die Schutzhlsen berflssig geworden. Der in DIN

4、34 31 1, Ausgabe Dezember 1962, genormte Kegel 1 : 20 hat sich - soweit er ange- wandt wurde - in der Praxis nicht bewhrt. Die seinerzeitig genannten Begrndungen zur Ein- fhrung des Kegels 1 : 20 (schlechte Lsbarkeit der Schutzhlse vom Innenkegel gem 1 : 50 der Bohrung) erwiesen sich inzwischen als

5、nicht stichhaltig. Im Hinblick auf die in der Praxis bewhrte Ausfhrungsform und mit Rcksicht auf die vorhan- denen Werkzeuge wurde in der vorliegenden Norm nur noch die Bohrung fr den Zentrierbolzen und zwar mit dem Kegel 1 : 50 genormt, wobei die nicht mehr verwendeten Gren dl: 60, 80 und 120 gestrichen wurden. Normenausschu Schienenfahrzeuge (FSF) im DIN Deutsches Institut fr Normung e. V. DIN 34 31 1 Apr 19/ rirayr. + Vertr.-Nr. 0004 Alleinverkauf der Normen durch Beuth Verlag GmbH. Berlin 30 und Kln 1 04.77

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