Ukuphuka kweringi ye-piston kungenye yezindlela ezivamile zokulimala emasongweni e-piston. Ngokuvamile, amasongo episton yokuqala neyesibili ajwayele ukuphuka, futhi izingxenye eziphukile ziseduze kakhulu nokugqagqana. Iringi ye-piston ingase iphuke ibe izingcezu ezimbalwa, noma ingase iphihlizwe noma ingabikho. Indandatho ye-piston ephukile izokwandisa ukuguga kwesilinda. Iringi ephukile yenjini kadizili enama-stroke amabili ingase ivuthele epayipini le-exhaust noma ibhokisi lokuchotshoza, noma ishaye ngisho nasekupheleni kwe-turbocharger ukuze kulimaze ama-turbine blades, kubangele izingozi ezimbi. Namuhla ngizokuyisa ukuze ubone ukuthi siyini isizathu seringi yepiston ephukile ~
Izimbangela ezivamile zamasongo e-piston aphukile:
Kunezizathu eziningi zeringi ye-piston ephukile. Ngaphezu kokukhubazeka kwempahla kanye nekhwalithi yokucubungula ephansi, kubangelwa ikakhulukazi ukunganakeki kahle nokuphathwa ngesikhathi sokusetshenziswa kanye nekhwalithi ephansi yokuhlanganisa.
1. Igebe phakathi komlomo lincane kakhulu
Lapho igebe lokugqagqana lincane kunegebe lomhlangano, izinga lokushisa lokushisa kwendandatho ye-piston liyakhula ngesikhathi sokusebenza, ukuze insimbi ekunqwabelaneni ingabi nendawo eyanele yokwandisa, futhi iziphetho ezimbili zokugqagqana zigobile futhi ziphukile eduze kweqa.
2. Idiphozi ye-carbon groove eyindandatho
Ukushiswa okungekuhle, ukushisisa ngokweqile kodonga lwesilinda ukuze kufakwe i-oxidize noma kushise uwoyela wokugcoba kuzodala idiphozithi enkulu yekhabhoni kusilinda. Lapho ama-coke deposits enzima, ukunyakaza kwendandatho kuvinjiwe, futhi indandatho kanye nodonga lwesilinda lusebenza ngokuqinile, futhi amafutha akhutshiwe kanye nama-chips ensimbi ayaxutshwa, futhi ngaphansi kwesenzo segesi evuzayo, idiphozithi yendawo ye-coke eqinile. kwakheka ekugcineni engezansi komsele oyindandatho. Kukhona amadiphozithi ekhabhoni aqinile asendaweni ngaphansi kweringi yepiston, futhi ingxenye engaphezulu ingaphansi kwengcindezi yegesi ngezikhathi ezithile, okubangela ukuba indandatho yepiston iphuke ngenxa yokukhathala okugobile.
3. Ithebula lokugaya i-cylinder liner
Ukunyakaza okuhlobene kwesikhathi eside kwe-piston assembly kanye ne-cylinder liner kubangela ukuthi i-cylinder liner iguge futhi isiteji sokugaya sivele engxenyeni engenhla ye-cylinder liner. Lapho i-piston ikhuphukela endaweni ephezulu efile, iringi yokuqala yepiston ishaya itafula lokugaya bese iyathinteka bese iyaphuka.
4. Ukuguga ngokweqile kwe-ring groove
Indawo ephansi yokugcina ye-groove yeringi ithambekele (imise okwecilongo) ngemva kokugqoka ngokweqile. Lapho i-piston iseduze nendawo efile ephezulu, ukucindezela kwegesi kubangela ukuba indandatho inamathele endaweni ephansi yokugcina indandatho ethambekele, indandatho yepiston iyasonteka futhi ikhubazekile, futhi i-piston ring groove igugile ngokweqile futhi ikhathele futhi iphukile.
5. Indandatho yepiston ilenga indawo yomoya
Ezinjinini zikadizili ezinemivimbo emibili, iringi ye-piston ivamise ukubanjwa lapho kushanela futhi imbobo yokukhipha umoya ibangela ukuphuka kweringi. Ngenxa yokuthi iringi ye-piston inokushuba okukhulu kakhulu engxenyeni evulayo, ukuwohloka kokushisa kukhulu, futhi izimbambo phakathi kwamachweba omoya ku-cylinder liner zigogeka kalula ngenxa yokushisa. Lapho i-piston ihamba, iringi ihlangana nembobo yomoya, futhi iringi izophuka inqobo nje uma ukuvuleka kweringi kubambe kancane imbobo yomoya.
6. Ukunwetshwa kwe-radial nokukhathala kokufinyela kweringi ye-piston
Lapho amandla okunwebeka endandatho ye-piston enganele noma i-cylinder liner igqokwe ngokweqile, indandatho ye-piston nodonga lwesilinda azikwazi ukuxhunywa eduze, okungukuthi, ukuqina komoya akukwazi ukugcinwa, ukuze igesi yomfutho ophezulu ivuzele indandatho. i-ring groove. Lapho i-piston yehla, ingcindezi yegesi kusilinda iyancipha, futhi indandatho yepiston iyakhishwa emseleni. Iringi ye-piston iqhubeka ngokukhula futhi ifinyela ngamandla, ibangele ukukhathala nokuphuka.
7. Ukuguga ngokweqile kweringi yepiston kwenza amandla eringi angakwazi ukuhlangabezana nezidingo futhi nendandatho iphukile.
Izinto zamanje zendandatho ye-piston ngokuvamile ziyizinto ezi-brittle ezifana ne-grey cast iron, i-alloy cast iron, i-ductile iron, futhi isakhiwo sangaphakathi singase sibe ne-porosity, imifantu noma ukuhlukaniswa kwezingxenye ngesikhathi senqubo yokuphonsa, okungabangela amandla endawo ehle noma ukugxilisa ingqondo. emifantwini, okubangela ukwethuka ngesikhathi sokusebenza Ukuphuka noma ukuphuka kokukhathala.
8. Ukugqokwa kwe-cylinder liner
Ukugqoka okunyathelwe phezulu nangaphansi kwezindawo ezifile eziphakeme kubangela amahlombe, ukuguga okukhulu ekugcineni okukhulu kwenduku yokuxhuma noma izinguquko endaweni yokuqala yesikhungo esifile ngemva kokuba iziphetho ezinkulu nezincane zenduku yokuxhuma zilungiswe, okuholela ekubeni nomthelela futhi ephukile. indandatho ngaphansi kwesenzo samandla angasebenzi .
9. Inkinga yokubambisana phakathi kwamafutha okugcoba nophethiloli
Kusukela ekuhlaziyweni kwemvelo kaphethiloli, ezinye izinto zokubasa ziqukethe isibabule esiphezulu, esifana nophethiloli we-Reye's 1000s. Ngakho-ke, lapho uphethiloli uvutha, kukhiqizwa i-SO2 ne-SO3 engaphezulu. Kodwa-ke, i-SO2 ne-SO3 zinegesi emazingeni okushisa aphezulu, futhi ukuxhumana kwazo okuqondile nezinsimbi kungabangela ukugqwala kwegesi. Iphinde ikhuthaze ukuqina kwe-carbon deposits kanye ne-colloidal deposits, okwandisa ukugqokwa kwama-cylinder liners nama-piston rings. Ngokwezidingo, lapho izinjini zikadizili zisebenzisa amafutha anesulfure ephezulu, kufanele kusetshenziswe uwoyela okhethekile wokugcoba oqinile noma one-alkaline. Uma injini enkulu ingawasebenzisi amafutha e-cylinder afana nophethiloli noma ishintsha uwoyela we-cylinder namafutha enjini. Ngale ndlela, amandla kawoyela ogcobayo okunciphisa i-asidi ekhiqizwa ukusha ayancishiswa, okubangela ukuba into ene-asidi idle i-piston neringi ye-piston ngokungathi sína, okuholela ekuqhekekeni kweringi ye-piston njalo.
3kg_%E5%89%AF%E6%9C%AC.jpg)
Indlela yokwelapha ephuthumayo yeringi ye-piston ephukile:
Ukuphuka kweringi ye-piston kwenzeka ikakhulukazi endandatho ye-piston engenhla, evame ukuvezwa izinga lokushisa eliphezulu nokucindezela okukhulu, ikakhulukazi lapho ingaphezulu le-cylinder ligqokwa. Uma indandatho iphuka ngesikhathi sokusebenza, ukuphuka kwendandatho kuzoklwebha indawo engaphakathi yesilinda futhi kwenze umsindo; noma ingxenye engezansi yesilinda izoshisa kakhulu ngenxa yokuvuza kwegesi, okuyobe sekuvuza ku-crankcase futhi kukhiqize inani elikhulu lenkungu kawoyela. Ngakolunye uhlangothi, ngemva kokuba indandatho ye-piston iphukile, ingcindezi yokucindezela nayo iyancishiswa, okuholela ekushiseni okungekuhle kanye nentuthu emnyama kugesi wokukhipha umoya.
