Ndife akatswiri pazigawo za injini zapamwamba kwambiri.
Chilankhulo
Camshaft ndi crankshaft zimagwira ntchito zosiyanasiyana, koma ziyenera kugwirira ntchito limodzi motsatana bwino kuti injini yanu iziyenda bwino.
Makamera amagwiritsa ntchito "makamu" ooneka ngati dzira kuti atsegule ndi kutseka ma valve a injini (CAM imodzi pa valavu), pamene ma crankshaft amatembenuza "crank" (kuyenda mmwamba ndi pansi kwa pistoni) kuti ikhale yozungulira.
Kodi camshaft ndi chiyani?
● Camshaft, yomwe ili pa "top" ya injini, ndi gawo lofunika kwambiri la makina a valve omwe amalola mpweya ndi mafuta kulowa m'chipinda choyaka (malo omwe ali pamwamba pa pistoni) ndi kutuluka pambuyo poyaka.
●Mainjini amakono oyatsira mkati (ics) amatha kukhala ndi ma camshaft anayi - kapena makamera awiri - okhala ndi ma valve anayi pa silinda imodzi (awiri olowetsa ndi awiri otulutsa). Single CAM ikukhazikitsa imodzi yokha pa valve.
Kodi camshaft imagwira ntchito bwanji?
● Kuyendetsedwa ndi crankshaft, camshaft imatumiza kusuntha kuchokera ku CAM kupita kumadera osiyanasiyana a makina a valve kuti atsegule ndi kutseka valve ya injini.
●Makona a CAM amabwera mosiyanasiyana komanso kukula kwake kuti azitha kuwongolera kuchuluka komanso nthawi yomwe valavu imatseguka. Kukonzekera kwa camshaft anayi kumawonjezera mphamvu. Ndi ma valve ochulukirapo, mpweya wochuluka komanso wotulutsa mpweya ukhoza kusuntha mosavuta chifukwa ali ndi malo ambiri odutsamo.
Kodi crankshaft ndi chiyani?
● Crankshaft ili kumapeto kwenikweni kwa injini ndipo imagwiritsa ntchito mphamvu yoyaka kwambiri pokankhira pisitoni pansi, zomwe zimapangitsa kuti crankshaft izungulire. Kuzungulira uku ndiko gwero lamphamvu la injini.
Kodi crankshaft imagwira ntchito bwanji?
● Ndodo yolumikizira imalumikiza pisitoni ndi crankshaft. Kuyaka, komwe kumayendetsedwa bwino ndi kuyatsa ndi nthawi ya valve, kumapangitsa kuti pistoni ikhale yotsika kwambiri, zomwe zimapangitsa kuti crankshaft ikhalebe yozungulira.
Kodi camshaft ndi crankshaft zimagwirira ntchito limodzi bwanji?
●Magiya a camshaft ndi crankshaft amalumikizidwa ndi injini ndi unyolo wanthawi (wofanana ndi unyolo wanjinga) kapena lamba wanthawi (wofanana ndi lamba woyendetsa, koma wokhala ndi mano) kapena seti ya meshing gear (magiya awiri olumikizana) omwe ali pa " kumaso". Kuti zisamawotche, ziyenera kulembedwa (mogwirizana ndi zomwe wopanga akupanga) kuti azigwira ntchito mogwirizana. Izi zimatchedwa nthawi ya valve.
●Panthawi ya kuyaka kwa mikwingwirima inayi (kulowetsa, kuponderezana, mphamvu, ndi utsi), crankshaft imatembenuka kawiri - kusuntha pistoni iliyonse m'mwamba ndi pansi kawiri - pomwe camshaft imatembenuka kamodzi. Izi zimapangitsa kuti valavu iliyonse itseguke kamodzi pakatembenuka kawiri ka crankshaft pokhudzana ndi pisitoni. Mwanjira imeneyi, valavu yokhayo imatsegulidwa panthawi ya sitiroko.
● Ma valve onse awiri amakhala otsekedwa panthawi ya kupanikizika ndi kuyaka, ndi valavu yokhayo yomwe imatsegulidwa panthawi yopuma.
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