Ipiston.
I-piston yintshukumo ephindaphindayo emzimbeni wesilinda yenjini yemoto. Ulwakhiwo olusisiseko lwe-piston lunokwahlulwa lube phezulu, intloko kunye nesiketi. Umphezulu we-piston yinxalenye ephambili yegumbi lokutsha, kwaye imo yayo inxulumene nohlobo lwegumbi lokutsha elikhethiweyo. Iinjini zepetroli zisebenzisa kakhulu i-piston ephezulu ethe tyaba, enenzuzo yendawo encinci yokufunxa ubushushu. Umphezulu we-piston yenjini yedizili udla ngokuba neendidi ngeendidi zemingxuma, imo yayo ethile, indawo kunye nobukhulu kufuneka buhambelane nokwakheka komxube wenjini yedizili kunye neemfuno zokutsha.
I-piston top yinxalenye yegumbi lokutsha, ngoko ke idla ngokwenziwa ngeemilo ezahlukeneyo, kwaye i-piston yenjini yepetroli uninzi lwayo isebenzisa i-flat top okanye i-concave top, ukuze igumbi lokutsha libe ncinci, indawo yokusasaza ubushushu ibe ncinci, kwaye inkqubo yokuvelisa ibe lula. Ii-convex head pistons zisetyenziswa rhoqo kwiinjini zepetroli ezimbini. Ii-piston top zeenjini zedizili zihlala zenziwe ngee-pits ezahlukeneyo.
Intloko yepiston yinxalenye engaphezulu kwesihlalo sepiston pin, kwaye intloko yepiston ifakwe iringi yepiston ukuthintela ubushushu obuphezulu kunye negesi yoxinzelelo oluphezulu ukuba ingangeni kwi-crankcase kunye nokuthintela ioyile ukuba ingangeni kwigumbi lokutsha; Uninzi lobushushu obufunxwa yintloko yepiston ludluliselwa kwisilinda ngentloko yepiston, emva koko ludluliselwe kwi-cooling medium.
Intloko yepiston icutshungulwa ngee-ring grooves ezininzi zokufaka iiringi zepiston, kwaye inani leeringi zepiston lixhomekeke kwiimfuno zesitywino, esihambelana nesantya senjini kunye noxinzelelo lwesilinda. Iinjini ezinesantya esiphezulu zineeringi ezimbalwa kuneenjini ezinesantya esiphantsi, kwaye iinjini zepetroli zineeringi ezimbalwa kuneenjini zedizili. Iinjini zepetroli eziqhelekileyo zisebenzisa iiringi zegesi ezi-2 kunye neringi yeoyile enye; Injini yedizili ineeringi zegesi ezi-3 kunye neringi yeoyile enye; Injini yedizili enesantya esiphantsi isebenzisa iiringi zegesi ezi-3 ~ 4. Ukuze kuncitshiswe ukulahleka kokungqubana, ukuphakama kwenxalenye yebhanti kufuneka kuncitshiswe kangangoko kunokwenzeka, kwaye inani leeringi kufuneka lincitshiswe phantsi kwemeko yokuqinisekisa ukutywinwa.
Zonke iindawo zeringi yepiston ezingaphantsi komngxuma zibizwa ngokuba zii-piston skirts. Indima yayo kukuqondisa i-piston kwisilinda ukuze ihambe ngendlela ephindaphindayo kwaye imelane noxinzelelo olusecaleni. Xa injini isebenza, ngenxa yempembelelo yoxinzelelo lwegesi kwisilinda, i-piston iya kugoba kwaye iguqulwe. Emva kokuba i-piston ishushu, ubungakanani bokwandiswa bukhulu kunezinye iindawo ngenxa yesinyithi kwi-piston pin. Ukongeza, i-piston iya kuvelisa ukuguquguquka kwe-extrusion phantsi kwesenzo soxinzelelo olusecaleni. Ngenxa yokuguquguquka okungentla, icandelo lesiketi sepiston liba yi-ellipse kwicala le-long axis ethe nkqo kwi-piston pin. Ukongeza, ngenxa yokusasazwa kobushushu nobunzima obungalinganiyo kwi-axis yepiston, ukwanda kobushushu kwecandelo ngalinye kukhulu phezulu kwaye kuncinci ezantsi.
Ukusilela okuphambili kwendibano yepiston kunye nezizathu zazo zezi zilandelayo:
1. Ukutsalwa komphezulu wepiston. Ukutsalwa kwepiston kuvela phezulu kwepiston, kunye nemingxuma ekhululekileyo kwiindawo ezikhanyayo kunye nokunyibilika kwendawo kwiimeko ezinzima. Isizathu esiphambili sokutsalwa komphezulu wepiston kubangelwa kukutsha okungaqhelekanga, kangangokuba umphezulu wamkela ubushushu obuninzi okanye ugijime phantsi komthwalo omkhulu emva kokuba iringi yepiston ibambekile kwaye yaphukile.
2, umphezulu wepiston uyaqhekeka. Indlela eqhekeka ngayo umphezulu wepiston idla ngokuba yi-vertical to the axis of the pin hole of the piston, ebangelwa kakhulu kukuqhekeka kokudinwa okubangelwa luxinzelelo lobushushu. Isizathu: ukusebenza ngokugqithisileyo kwenjini kukhokelela ekuguqukeni okugqithisileyo kwepiston, okubangela ukuqhekeka kokudinwa komphezulu wepiston;
3, ukuguguleka kodonga olusecaleni kwe-piston ring groove. Xa i-piston inyuka isiya phezulu, i-piston ring kufuneka ibe yi-radial telescopic kunye nokuguquguquka kwesilinda, ingakumbi ubushushu be-ring groove yokuqala buphezulu, kwaye ichaphazeleka "yimpembelelo" yegesi kunye ne-oyile wedge, ngoko ke ukungqubana kwe-ring kunye nokungcangcazela kwenzeka kwi-ring groove, okubangela ukuguguleka;
4. Indandatho yepiston inamathele kwi-groove yeringi. Ukucolwa kweringi yepiston kubangelwa kukufakwa kwe-oxidation yeoyile yokuthambisa okanye ukulahleka kwenkululeko yokuhamba etankini, oku kusilela kuyingozi kakhulu. Izizathu eziphambili: ukugqithisela injini yedizili okanye umsebenzi wokugqithisela ixesha elide, kangangokuba i-oyile yokuthambisa igum, iringi yepiston, isilinda i-thermal deformation enkulu; Ungcoliseko lweoyile yokuthambisa lubi kakhulu, umgangatho weoyile yokuthambisa awubi kakuhle; Isixhobo somoya sokuphefumla se-crankcase asisebenzi kakuhle, sibangela uxinzelelo olubi kakhulu okanye ukuqina komoya kwesilinda, okubangela ukuba ioyile ikhawuleze. Ke ngoko, kuyimfuneko ukuqinisekisa ukusetyenziswa kweoyile efanelekileyo ukuthintela injini yedizili ekutshiseni kakhulu.
Ukuba ufuna ukwazi okungakumbi, qhubeka ufunda amanye amanqaku kule sayithi!
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I-Zhuo Meng Shanghai Auto Co., Ltd. izimisele ukuthengisa iinxalenye zeemoto ze-MG&MAUXS kwaye wamkelekile ukuzithenga.
