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lamellenkupplung

Infos, Fragen und Antworten zur Berechnung von Maschinenelementen.

lamellenkupplung

Beitragvon das_quadrat am Di 8. Sep 2009, 10:00

habe ein problem bei der berechnung des folgenden beispiels:

lamellenkupplung für folgende angaben:
leistung 35 kW
n1= 300 1/min
n2= 0-300 1/min
lamellenzahl = 11 (Außen und Innenlamellen)
Reibwert = 0,07
Pressung p_zul= 7 N/cm²

ges. Die Abmessungen der Lamellen (innen und Außendurchmesser) sind auszulegen ( Außendurchmesser möglichst klein). Der Wärmezustand der Kupplung ist überschlägig zu überprüfen (kennwert C)

also den 2. fragepunkt löst man glaub ich mit µ*pm*vm=Ak/Ar*C und auf C umformen
aber ich weiß nicht wie ich auf die abmessungen komme um dann vm, Ak, Ar auszurechen.


ich hoffe es kann mir jemand helfen!!
vielen dank im Voraus!
sandra
das_quadrat
 
Beiträge: 2
Registriert: Di 8. Sep 2009, 09:52

Re: lamellenkupplung

Beitragvon MSA am Di 8. Sep 2009, 11:17

Hi,

also die Gleichung, die Du wahrscheinlich verwenden kannst findest du hier in dieser Konstruktionsarbeit auf Seite 69:
Berechnung Lamellenkupplung

Für die Berechnung des Lamellen-Innen- und -Außendurchmessers müsstest Du wohl noch den Durchmesser der Antriebswelle kennen :? . Hast du den? Ansonsten müsstest du auch diesen berechnen (über max. Drehmoment, Sicherheitsfaktor usw.).
So verstehe ich die Aufgabe zumindest :geek:

Bei der Berechnung des Wärmezustands kann ich dir leider nicht helfen. Auf dem Gebiet bin ich mir nicht (mehr) so gut :?

Gruß,
MSA
MSA
 
Beiträge: 29
Registriert: Mi 11. Mär 2009, 21:19

Re: lamellenkupplung

Beitragvon das_quadrat am Di 8. Sep 2009, 16:15

also erstmal danke für die rasche antwort.

Das ist eben das problem, ich hab den durchmesser nicht gegeben, sondern nur die angaben die ich gepostet habe :|

lg
das_quadrat
 
Beiträge: 2
Registriert: Di 8. Sep 2009, 09:52

Re: lamellenkupplung

Beitragvon MSA am Do 10. Sep 2009, 21:51

ich weiß ja nicht wie diese Aufgabe gestrickt ist, aber ich würde dann einfach den Durchmesser der Welle berechnen und dann ein paar Millimeter Abstand der äußeren Kupplungsscheiben von der Welle annehmen.
Den Durchmesser der Welle müsste man ja über die Leistung und die Drehzahl des Motors berechnen können. Dann könnte man noch einen Sicherheitsfaktor annehmen (vielleicht 2 ?). Und dann hat man den Durchmesser der Welle :D .

Hilft dir das weiter? Oder hast du schon ein Lösung gefunden?
MSA
 
Beiträge: 29
Registriert: Mi 11. Mär 2009, 21:19


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