curs om4 martie 2015
TRANSCRIPT
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Ş. l. univ. dr. ing. Jan–Cristian GRIGORE,
Universitatea din Piteşti,Catedra de Mecanică Aplicată
Organe de Ma ini ș
CURS 4
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4. Transmisii prin ro i din ate. Angrenajeț ț
4.1.Generalită iț
Defini ie:ț Angrenajele sunt transmisii mecanice formate din mecanisme cu ro ițdin ate ce transmit fluxul energetic.ț
Preocesul de contact dintre din ii ro ilor ro ilor în vederea asigurării uneiț ț ț
mi cării continue se nume teș ș angrenare.
Continuitatea angrenării constă în faptul că avem simultan în contact două
perechi de din i.ț
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Calsificareaangrenajelor
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4.2. Elemente geometrice ale ro ilor din ate cu dantură dreaptăț ț
Elementul principal al ro ii din ate îl constituie dantura din ii dispu iț ț ț ș
echidistant pe suprafa a de rostogolire, av!nd acelea i dimensiuniț ș
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