Piston.
Piston ndeyekudzokorodza kufamba muhumburumbira muviri weinjini yemotokari. Iyo yakakosha chimiro chepiston inogona kukamurwa kuva kumusoro, musoro uye siketi. Pamusoro pepiston ndiyo chikamu chikuru chekamuri yekupisa, uye chimiro chayo chine hukama neiyo yakasarudzwa yekamuri yekupisa fomu. Injini dzepeturu dzinowanzo shandisa flat top piston, iyo ine mukana wenzvimbo diki yekupisa kupisa. Diesel engine piston top inowanzova nemakomba akasiyana siyana, chimiro chayo, chinzvimbo uye saizi inofanirwa kunge iine injini yedhiziri musanganiswa wekugadzira uye kupisa zvinodiwa.
Iyo piston yepamusoro inhengo yekamuri yekupisa, saka inowanzogadzirwa nemhando dzakasiyana, uye peturu injini piston inonyanya kushandisa yakafuratira kumusoro kana concave pamusoro, kuitira kuti kamuri yekupisa ikwane, nzvimbo yekupisa kupisa idiki. , uye nzira yekugadzira iri nyore. Convex musoro pistons anowanzo shandiswa mune maviri sitiroko peturu injini. Misoro yepiston yeinjini dzedhiziri inowanzogadzirwa nemakomba akasiyana.
Musoro wepiston ndiyo chikamu chiri pamusoro pechigaro chepiston chepiston, uye musoro wepiston wakaiswa nemhete yepistoni kudzivirira kupisa kwakanyanya uye gasi rinodzvinyirira kubva pakupinda mukrankcase uye kudzivirira mafuta kuti apinde mukamuri inopisa; Kupisa kwakawanda kunotorwa nepamusoro pepiston kunoendeswawo kune silinda kuburikidza nemusoro wepiston, uye wozotamiswa kuburikidza nepakati inotonhorera.
Musoro wepiston unogadziriswa nemhete dzinoverengeka dzekuisa piston mhete, uye huwandu hwemhete dzepiston zvinoenderana nezvinodiwa zvechisimbiso, zvinoenderana nekumhanya kweinjini uye cylinder pressure. Injini dzinomhanya-mhanya dzine maringi mashoma pane enjini dzinomhanya-mhanya, uye injini dzepeturu dzine maringi mashoma pane enjini dzedhiziri. General peturu injini dzinoshandisa 2 gasi mhete uye 1 mhete yemafuta; Injini yedhiziri ine zvindori zvegasi 3 uye mhete yemafuta 1; Yakaderera kumhanya dizeli injini inoshandisa 3 ~ 4 gasi mhete. Kuti uderedze kurasikirwa kwekukakavadzana, kureba kwechikamu chebhanhire kunofanira kuderedzwa kusvika pazvinobvira, uye nhamba yezvindori inofanira kuderedzwa pasi pemamiriro ekusimbisa chisimbiso.
Zvose zvikamu zvemhete yepiston pazasi pegoroti zvinodaidzwa kuti piston siketi. Basa rayo ndere kutungamira piston muhumburumbira yekudzoreredza mafambiro uye kumirisana nekumanikidzwa kwedivi. Kana injini iri kushanda, nekuda kwekuita kwegasi kudzvanywa muhumburumbira, piston inokotama nekuremara. Mushure mekunge piston yapisa, huwandu hwekuwedzera hwakakura kupfuura hwedzimwe nzvimbo nekuda kwesimbi iri papiston. Uye zvakare, iyo piston inoburitsa extrusion deformation pasi pechiito chekumanikidza parutivi. Nekuda kweiyo deformation iri pamusoro, chikamu chepiston siketi chinova ellipse munzira yekureba axis perpendicular kune piston pin. Mukuwedzera, nekuda kwekusaenzana kwekugovera kwekushisa uye kuwanda pamwe chete neaxis yepiston, kuwedzera kwekushisa kwechikamu chimwe nechimwe kwakakura kumusoro uye kuduku pasi.
Iko kutadza kukuru kwekusangana kwepiston uye zvikonzero zvavo ndezvizvi:
1. Kubviswa kwepamusoro pepiston. Piston ablation inoonekwa pamusoro pepiston, ine yakasununguka gomba mumakesi akareruka uye kunyungudika kwenzvimbo mumakesi anorema. Chikonzero chikuru chekubviswa kwepamusoro pepiston kunokonzerwa nekupisa kusingawanzoitiki, kuitira kuti kumusoro kugamuchire kupisa kwakanyanya kana kumhanya pasi pemutoro wakakura mushure mokunge mhete yepiston yakanamatira uye yakaputsika.
2, pamusoro pepamusoro pepiston inotsemuka. Iyo nzira yekutsemuka pamusoro pepamusoro pepiston inowanzoenderana kune axis yepini gomba repiston, iyo inonyanya kukonzerwa nekutsemuka kwekuneta kunokonzerwa nekupisa kwekushushikana. Chikonzero: kuwanda kwekushanda kweinjini kunotungamirira kukunyanyisa kushanduka kwepiston, zvichiita kuti kuneta kutsemuka kwepamusoro pepiston;
3, piston ring groove padivi pemadziro kupfeka. Kana piston ichifamba ichikwira ichidzika, mhete yepiston inofanira kunge iri radial telescopic ine deformation yecylinder, kunyanya tembiricha yekutanga ring groove yakakwira, uye inokanganiswa ne "impact" yegesi uye wedge yemafuta, saka. iyo mhete friction uye vibration inoitika mumhete groove, zvichikonzera kupfeka;
4. Mhete yepiston ndeye coke yakanamatira mugoro remhete. Piston mhete coking mhedzisiro yekuzora mafuta oxidation deposition kana mhete kurasikirwa kwerusununguko rwekufamba mutangi, kutadza uku kunokuvadza zvakanyanya. Zvikonzero zvikuru: injini yedhiziri yekupisa kana kushanda kwenguva yakareba, kuitira kuti mafuta ekuzora, piston mhete, silinda yakakomba yekupisa deformation; Kusvibisa kusvibiswa kwemafuta kwakakomba, mafuta ekuzora akashata; Iyo crankcase ventilation mudziyo inoshanda zvisina kunaka, ichikonzera yakawandisa yakashata kudzvanywa kana kusasimba kwemhepo yecylinder, zvichikonzera kumhanya kwemafuta. Naizvozvo, zvinodikanwa kuve nechokwadi chekushandiswa kwemafuta akakodzera kudzivirira injini yedhiziri kubva pakupisa.
Kana iwe uchida kuziva zvakawanda, ramba uchiverenga zvimwe zvinyorwa pane ino saiti!
Ndapota tifonere kana uchida zvigadzirwa zvakadaro.
Zhuo Meng Shanghai Auto Co., Ltd. yakazvipira kutengesa MG&MAUXS zvikamu zvemotokari zvinogamuchirwa kutenga.
