Ntchito ya crankshaft ndikusintha kuthamanga kwa gasi kuchokera pagulu lolumikizira pisitoni kukhala torque yakunja, ndikuyendetsa sitima ya valve ndi zida zina zothandizira. Ambiri a iwo amapangidwa ndi apamwamba sing'anga mpweya zitsulo, sing'anga aloyi mpweya zitsulo kapena spheroidal graphite kuponyedwa chitsulo. Kapangidwe ka crankshaft kumaphatikizapo shaft yakutsogolo, magazini yayikulu, magazini yolumikizira ndodo, crank, counterweight, shaft yakumbuyo, ndi zina zambiri, ndipo pali ndime zamafuta zomwe zimadutsa mumagazini yayikulu, crank and Connecting rod magazine kuti mafuta a magazini yayikulu ndi ndodo yolumikizira. . Journal. Chifukwa idzakhala pansi pa mphamvu zosiyanasiyana zomwe zikugwiritsidwa ntchito, padzakhala kuchuluka kwa kuvala, ndipo mbali zosiyanasiyana zimakhala ndi maonekedwe osiyanasiyana.

Valani mawonekedwe a magazini yayikulu ndi chitsamba chachikulu

Kuvala kwa magazini yayikulu motsatira malangizo a axial kuyenera kukhala kofanana, ndipo kuchuluka kwa kuvala komwe kumayendera sikofanana, ndipo padzakhala ellipticity pang'ono. Popeza kuti magazini yapakati nthawi zambiri imakhala ndi mphamvu zambiri, kuchuluka kwake kumakhala kokulirapo kuposa kwa mbali ziwirizo. Kuvala kwa radial kwa chitsamba chachikulu chonyamula kumafanana ndi magazini yayikulu. Chovala chachikulu kwambiri chimakhala pazitsulo zapansi, ndipo kuvala kwa chitsamba chapakati kumakhala kwakukulu kuposa kwa malekezero awiri.

Valani mawonekedwe a magazini yolumikizira ndodo ndi chitsamba cholumikizira ndodo

Kuvala kwa radial kwa magazini olumikizira ndodo ndi mayendedwe sikuli kofanana, ndipo kuvala kumbali yamkati kumakhala kwakukulu. Kuvala kosagwirizana kumapangitsa kuti magazini ya ndodo yolumikizira ipange ellipse molunjika, ndipo mbali ya axial nthawi zambiri imakhala yofanana. Ndodo yolumikizira yokhala ndi ma asymmetric-mapeto akulu idzakhala yocheperako pakatha kuvala chifukwa cha kugawa kwa katundu wosagwirizana pamagazini yolumikizira ndodo; ndodo yolumikizira yokhala ndi ma symmetrical-mapeto akulu idzabweretsa zotsatira zomwezo ngati ipindika.

Mbali yovala kwambiri ya magazini yolumikizira ndodo nthawi zambiri imakhala mkati mwa magazini iliyonse, ndiko kuti, kumbali ya crankshaft centerline, kotero kuti magaziniyo ili kunja; ndipo mbali yomwe imavala mu kondomu nthawi zambiri imakhala m'mphepete mwa njira yamafuta opaka mafuta pomwe zonyansa zimamangika. Pambali ndi malo omwe mphamvu ndi yaikulu.Kuvala kwa crankshaft kungayesedwe ndi micrometer. Kuvala kwa magazini yaifupi ya crankshaft kumayenera kuyang'aniridwa makamaka ngati pali zolakwika zozungulira, ndipo kwa magazini aatali, zolakwika zozungulira ndi zozungulira ziyenera kuyang'aniridwa. Njira yeniyeni yoyezera ndi: tengani magawo awiri pamagazini iliyonse, ndi kutenga mfundo ziwiri pa gawo lililonse. Theka la kusiyana pakati pa kukula kwakukulu ndi kucheperachepera kwa gawo lomwelo ndi cholakwika chozungulira; theka la kusiyana pakati pa mainchesi awiri ndi osachepera awiri m'magawo awiri ndi zolakwika za cylindricity. Pantchito yabwinobwino, kuvala kwa crankshaft kumakhala kochepa kwambiri, nthawi zambiri sikupitilira 0.01mm, ndipo cylindricity ndi yochepera 0.0025mm.

Mitundu yodziwika bwino ya kuwonongeka kwa crankshaft imaphatikizapo kuvala kwa magazini, ming'alu, kuwotcha, kupindika kapena kusweka, etc. Mwachitsanzo, kuchuluka kwa kuvala kwa crankshaft ndikokulirapo, ndipo chitsamba chonyamula chimatulutsa ngakhale utoto wakumbuyo. Izi nthawi zambiri zimayamba chifukwa cha kusapaka bwino kwamafuta, kuthamanga kwamafuta ochepa, komanso kusakwaniritsa zofunikira pakugwiritsa ntchito. Silinda ya crankshaft ndi yayikulu kwambiri, zomwe zikuwonetsa kuti injiniyo yakhala ikugwira ntchito molemera kwa nthawi yayitali. ; Kuwotcha kwa crankshaft, buluu, zotsekera, kuyenera kuyambitsidwa ndi mafuta osakwanira, chofala kwambiri ndikusowa kwamafuta.