Iyo crankshaft ndechimwe chezvakakosha zvikamu muinjini yekupisa yemukati, uye hupenyu hwayo hwesevhisi hunowanzo sarudza hupenyu hwesevhisi yeinjini yekupisa kwemukati. Muna 1920, American Clark Company yakashandisa tekinoroji yekuomesa musoro iyo yakangogadzirwa nguva pfupi yadarika ye crankshaft kuomeswa kwejenarari, iyo yakavandudza zvakanyanya kuramba kweabrasion ye crankshaft, nekudaro kunatsiridza hupenyu hwekushanda hweinjini yekupisa kwemukati.

Mumakumi emakore achangopfuura, kuneta kutyoka kwe crankshaft kwawedzera kuoneka, uye kuneta kunowanzoitika pamakona akatenderedzwa e crankshaft yejoining rod magazine. Nechikonzero ichi, vagadziri vazhinji vakakurudzira zvinodiwa kuti uvandudze kuneta kwesimba re crankshaft. Kiyi yekuvandudza crankshaft kuneta simba ndeyekuwedzera yakasara yekumanikidza kushushikana kweiyo crankshaft fillet. Induction kuomeswa kwe crankshaft fillets (kusanganisira majenari) ndiyo nzira inosarudzika yekuwana yakakura yasara yekumanikidza kudzvinyirira kwe> 600MPa yemafillet. Imwe kambani yeJapan yakaita nhevedzano yekupeta kuneta bvunzo pane yemukati inopisa injini crankshaft. Kuedza kwakaratidza kuti yakatenderedzwa induction yakaomeswa crankshaft ine yakanyanya kuneta simba (996MPa), iyo yakatenderedzwa yakatenderedzwa crankshaft kuneta simba ndeyechipiri (890MPa), uye nitrided crankshaft ndeyechitatu (720MPa). Makambani eAmerica anewo data yakafanana. Crankshaft fillet quenching inowanzoshandisa "half-turn inductor" quenching, inozivikanwawo seElotherm (Elotherm) quenching nzira. Iko kuti sensor inosungirirwa pajenari, uye crankshaft inopisa uye mvura inodzimwa panguva yekutenderera (kunewo nyaya apo crankshaft journal inopisa kusvika kune tembiricha yekudzima uye yozoshandurwa kuva dziva rekutonhodza nekudzima). Iyi nzira haingogonese kupinda nekubuda kweiyo crankshaft sensor, inorerutsa kuita kwechishandiso chekudzima muchina, asi zvakare inogadzirisa kuputika kwegomba remafuta, hupamhi husina kuenzana hwenzvimbo yakaomeswa, ukobvu husina kuenzana hweakaomeswa layer Matambudziko akadai seakakura. deformation.

Vanhu vari muindastiri vanowanzo tenda kuti Eluosen quenching nzira ibudiriro huru mu crankshaft induction quenching tekinoroji. Data inoratidza kuti induction kuomeswa kwemajenari ecrankshaft kunogona kuwedzera hupenyu hweinjini kusvika maawa 8000, ukuwo kudzimwa kwemajenari nemafiritsi kunogona kuwedzera hupenyu hweinjini kusvika maawa gumi. Iyo yakakosha tekinoroji inofanirwa kugadziriswa kuti iwane fillet quenching isimba rekugovera tekinoroji. Crankshaft "half-turn inductor" quenching inosanganisira akawanda matekinoroji, akadai frequency kutendeuka magetsi, quenching muchina turusi uye inductor, etc. Michina iyi inokoshawo zvikuru, asi michina iyi yakatanga kugadziriswa munyika yangu mukutanga 1980s.

Zviripachena, kudzima kupisa kweiyo crankshaft fillet kunofanirwa kuitwa kwakasimba. Simba rekupisa remukati wekrank uye kunze kwekrank rinofanira kuchinjwa, kureva kuti, simba remukati wekrank rinofanira kuva rakakura, uye simba rekunze kwekrank rinofanira kuva duku. Iyi tekinoroji inonzi tekinoroji yekugovera magetsi. Makona akakomberedzwa emakona makuru uye madiki anodzimwa. Tekinoroji ndeyekupa 100% simba pakudziya mukati me crank, uye 60% (kana 70%) simba pakudziya kunze kwe crank, uye kana crankshaft ichitenderera, kona inowedzera (kana kuderera) neimwe huwandu. ose 15°The simba.