Kusanthula kwazomwe zimayambitsa ndi njira zopewera kuwonongeka kwa crankshaft ya injini

Crankshaft ndiye gawo lofunika kwambiri la injini. Zimatengera mphamvu kuchokera ku ndodo yolumikizira ndikuisintha kukhala torque yomwe imachokera ku crankshaft ndikuyendetsa zida zina pa injini kuti zigwire ntchito.

The crankshaft imayang'aniridwa ndi kuphatikizika kwa mphamvu ya centrifugal ya misa yozungulira, mphamvu ya inertia ya gasi yosintha nthawi ndi nthawi komanso mphamvu yobwerezabwereza, yomwe imapangitsa crankshaft kunyamula mphamvu yopindika ndi kugwedezeka.

Chifukwa chake, crankshaft imafunika kuti ikhale ndi mphamvu zokwanira komanso kuuma, ndipo pamwamba pamagaziniyo sayenera kuvala, yunifolomu komanso moyenera.


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◆Tanthauzo la crankshaft

Crankshaft ndiye gawo lofunika kwambiri la injini. Zimatengera mphamvu kuchokera ku ndodo yolumikizira ndikuisintha kukhala torque yomwe imachokera ku crankshaft ndikuyendetsa zida zina pa injini kuti zigwire ntchito.

The crankshaft imayang'aniridwa ndi kuphatikizika kwa mphamvu ya centrifugal ya misa yozungulira, mphamvu ya inertia ya gasi yosintha nthawi ndi nthawi komanso mphamvu yobwerezabwereza, yomwe imapangitsa crankshaft kunyamula mphamvu yopindika ndi kugwedezeka.

Chifukwa chake, crankshaft imafunika kuti ikhale ndi mphamvu zokwanira komanso kuuma, ndipo pamwamba pamagaziniyo sayenera kuvala, yunifolomu komanso moyenera.


◆Kuwonongeka kofala kwa crankshaft

①Crankshaft magazine kuvala

Nyuzipepala ya crankshaft itatha kuvala, chilolezo pakati pa crankshaft ndi chitsamba choberekera chimawonjezeka, ndipo phokoso lachilendo limachitika panthawi yogwira ntchito, ndipo ntchitoyo imawonongeka. Zifukwa zazikulu ndi izi:

▶Mafuta ang'onoang'ono amafuta kapena mafuta akakhala ndi zomatira zolimba, kuwonongeka kwamafuta okhala ndi asidi.

▶ Chilolezo pakati pa magazini ndi chitsamba chobereka chimakhala chachikulu kwambiri kapena chaching'ono kwambiri, zomwe zimapangitsa kuti filimu yamafuta ikhale yovuta, kukangana kowuma kumayamba msanga.

▶Kupindika ndi kupindika kwa ndodo yolumikizira ndi kupatuka kwa cylinder liner kumapangitsa kuti mphamvu yogwira ntchito pa crankshaft isakhale yofanana komanso imatulutsa cholumikizira.


②Kukanda kapena kupsyinjika kwa magazini ya Crankshaft

Zifukwa zazikulu ndi izi:

▶Assembly salabadira kuyeretsa, kotero kuti injini ya dizilo imalowa mu slag, zitsulo ndi particles zina zowononga.

▶Mafuta opaka mafuta a m’poto salowa m’malo mwake pa nthawi yake, kotero kuti tinthu tambirimbiri tomwe timakhala m’mafuta okometsera, monga zitsulo zazikulu, zisakanikirane m’mipata yapakati pa chitsamba chonyamula mafuta ndi magaziniyo kuti zikande ndi kufinya.

▶ Kusakonza bwino kwa fyuluta ya mpweya kumawonjezera kutayika kwa cylinder liner, piston ndi piston ring, ndi zinthu zowononga monga mchenga ndi zonyansa zidzayamwa mu silinda ndi mpweya ndikuwotchedwa mu poto yamafuta ndikufalikira mu kufananiza chilolezo cha magazini ndi kubala.


③Nkhani ya Crankshaft yapsa

▶Zizindikiro za bluu pamoto wa magazini. Kuwotcha kwa magazini ya crankshaft kudachitika chifukwa chakuyaka matailosi.

▶ Pamenepa, padzakhala kukangana kwakukulu pakati pa magazini ndi chitsamba choberekera, filimu ya mafuta odzola idzawonongedwa ndipo kukanda kudzachitika, kutentha kumakwera kwambiri ndipo pamwamba pa magaziniyo padzakhala oxidized buluu, kuuma pamwamba. nyuzipepala idzachepa, ndipo aloyi yonyamula nthawi zambiri imamatiridwa pansi.


④Nkhani ya crankshaft imasweka

Kuphulika kwa crankshaft kumachitika nthawi zambiri pamakona ozungulira akusintha pakati pa crank ndi magazini ndi mabowo amafuta. 

Yoyamba ndi kung'ambika kwa radial, kuvulaza kwake ndi kwakukulu, kosavuta kuchititsa kuti crankshaft fracture, kuchitika kwa ngozi yaikulu ya ngozi; Chotsatiracho ndi ming'alu ya axial, m'mphepete mwa dzenje lamafuta pakukula kwa axial.

Ming'alu imayamba makamaka chifukwa cha zolakwika pakupanga ndi kukonza komanso kugwiritsa ntchito molakwika:

▶Pogwiritsa ntchito, kukhwimitsa kwa magazini kumakhala kosakwanira, kumakhala kolowera, kukanda, dzimbiri, dzenje logaya ndi zolakwika zina.

▶Kusakwanira kwamafuta kumayambitsa kuwotcha matailosi kwambiri, zomwe zimapangitsa kuti ming'alu iwonongeke.

▶ Akagwiritsidwa ntchito kwa nthawi yayitali, kusintha kwachitsulo kwachitsulo pamagazini kumayambitsa ming'alu yozungulira.

▶Ikakonza magaziniyo, kupanikizika kochuluka kotsalira kumachitika pamwamba, zomwe zimapangitsa kuti pakhale ming'alu.


⑤Kuthyoka kwa crankshaft

Crankshaft fracture ndi kuwonongeka kwangozi kwa injini ya dizilo. Zigawo za fracture ndi:

▶Pamkono wa crank arm pomwe minyewa iwiri yoyandikana ya crankshaft magazine imakumana.

▶Mu magazini ya ndodo yolumikizira kudzera mu dzenje lamafuta lomwe lili m'mphepete mwa 45°.

▶Muzu wa khosi la ndodo yolumikizira kapena muzu waukulu wa khosi.

▶Panjira yokhotakhota yokwerera ntchentche.


Zomwe zimayambitsa ming'alu pamwamba pa crankshaft magazine ndi zomwe zimayambitsa kupindika ndi kupotoza kwa crankshaft ndizomwe zimayambitsa kusweka kwa crankshaft.


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