Ndife akatswiri pazigawo za injini zapamwamba kwambiri.
Chilankhulo
Crankshaft ya injini imayenda pansi pa injini yagalimoto, kutembenuza kusuntha kwa pistoni kukhala yozungulira yopingasa, yomwe pamapeto pake imayendetsa mawilo kudzera mu gearbox.
M'magalimoto amakono, crankshaft imakhala ndi "crankshafts" yogawidwa mofanana (pali ma crankshafts anayi mu injini ya 4 yamphamvu, monga momwe tawonetsera m'munsimu) yolumikizidwa pansi pa pisitoni ndi ndodo zogwirizanitsa.
"Zikwapu" izi zimapatuka panjira ya crankshaft, yomwe imayang'anira mphamvu yozungulira.
Crankshaft imalumikizidwa ndi injini ndi mayendedwe akulu kumapeto kulikonse. Imalumikizidwa ndi flywheel ndikudutsamo kupita ku clutch.
Pamene clutch imagwira, mphamvu yozungulira ya crankshaft imasamutsidwa kudzera mu bokosi la gear ndikusiyanitsidwa ndi shaft yoyendetsa galimoto, yomwe imagwirizanitsidwa ndi mawilo ndipo motero imapangitsa kuti galimoto ikhale yokhoza kuyenda.
★Camshaft ndi crankshaft
01) Camshaft ili pafupi ndi pamwamba pa injini ndipo imayendetsedwa ndi crankshaft kudzera mu unyolo wanthawi kapena lamba.
02) Camshaft (pakhoza kukhala zinayi pa injini, ngakhale chithunzi cha crankshaft pansipa chikuwonetsa ziwiri) chili ndi ngodya za CAM m'litali mwake, zimagwira ntchito molumikizana ndi makina a valve (kuphatikiza ndodo, tappet ya valve, kasupe wa valve, valve ndi tappet kapena rocker arm) ku 03) kulimbikitsa mpweya ndi mafuta m'chipinda choyatsira moto ndi mpweya wotulutsa mpweya pambuyo pa gawo lamphamvu la injini yoyaka mkati.
03）Kongono yozungulira ya camshaft ya CAM imatsegula ndikutseka valavu ya injini. Kukula ndi mawonekedwe a bampu amasiyana injini ndi injini kulamulira kutalika ndi kuchuluka kwa valve kutsegulidwa. Mavavu ochulukirachulukira, m'pamenenso amakokedwamo mpweya ndi mafuta ambiri, ndipo m’pamenenso mpweya wotulutsa mpweya wotulutsa mpweya wochuluka umatulutsa, kumawonjezera mphamvu ya injini.
04) Crankshaft ya injini ili pafupi ndi pansi pa injini (monga momwe tawonetsera pansipa) ndipo imalumikizidwa ndi pisitoni ndi njira yolumikizira - kuyaka kumapangitsa pisitoni kusunthira pansi ndikupangitsa crankshaft kuzungulira.
★Chavuta ndi chani pa crankshaft?
01) Crankshaft ndi gawo la uinjiniya lovuta kwambiri komanso lopangidwa bwino lomwe limaphatikizapo zambiri kuposa kugunda kwa crank. Zofunikira kwambiri zimaphatikizapo crank pin, njira yamafuta, keyway, spindle khosi ndi flywheel mounting flange.
02）Koma ma crank a injini amaphatikizanso zowerengera zambiri zomangidwa mkati ndi masikelo opangidwa kuti azigwedezeka pomwe akuzungulira pang'ono.
03) Kugwedezeka kulikonse kotereku kumakulitsidwa ndipo kumatha kuwononga mayendedwe omwe crankshaft imayikidwa komanso ndodo zolumikizira ndi ma pistoni.
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