Umsesane wepiston.
Umsesane wepiston usetyenziselwa ukufaka i-piston groove ngaphakathi kwentsimbi yentsimbi, iringi yepiston yahlulwe ibe ziindidi ezimbini: iringi yokucinezela kunye neringi yeoli. Iringi yoxinzelelo ingasetyenziselwa ukutywina igesi yomxube ovuthayo kwigumbi lokutsha; Iringi yeoli isetyenziselwa ukukhuhla ioyile engaphezulu kwicylinder. Umsesane wepiston luhlobo lweringi yentsimbi eneelastiki ene-deformation enkulu yangaphandle, ehlanganiswe kwiprofayili kunye ne-groove ehambelana nayo. Amakhonkco episton abuyelayo kunye ajikelezayo axhomekeke kumahluko woxinzelelo lwerhasi okanye ulwelo ukwenza itywina phakathi kwesangqa sangaphandle sesangqa kunye nesilinda kunye necala elinye lomsesane kunye negroove yeringi.
Ubungakanani besicelo
Amakhonkco e-piston asetyenziswa ngokubanzi kwiintlobo zoomatshini bamandla, njengeenjini ze-steam, ii-injini ze-diesel, ii-injini zepetroli, ii-compressors, ii-hydraulic presses, njl., ezisetyenziswa kakhulu kwiimoto, oololiwe, iinqanawa, iiyachts njalo njalo. Ngokubanzi, i-piston ring ifakwe kwi-groove ye-piston, kwaye yona kunye nepiston, i-cylinder liner, intloko ye-cylinder kunye nezinye izinto zegumbi ukwenza umsebenzi.
Umsesane wepiston yeyona nto iphambili ngaphakathi kwi-injini yamafutha, yona kunye nesilinda, ipiston, udonga lwesilinda kunye ukugqibezela ukutywinwa kwerhasi yamafutha. Iinjini zemoto ezisetyenziswa ngokuqhelekileyo zineentlobo ezimbini zedizili kunye neenjini zepetroli, ngenxa yokusebenza kwazo okwahlukileyo, ukusetyenziswa kwamakhonkco episton akufani, amakhonkco episton asekuqaleni akhiwa ngokuphosa, kodwa ngenkqubela phambili yetekhnoloji, intsimbi ephezulu yamandla. Amakhonkco e-piston azalwa, kunye nomsebenzi we-injini, iimfuno zokusingqongileyo ziyaqhubeka ziphucula, iintlobo ezahlukeneyo zezicelo zonyango eziphezulu, ezifana nokutshiza kwe-thermal, i-electroplating, i-chrome plating, njl. unyango lwe-phosphating, njl., Ukuphucula kakhulu umsebenzi we-piston ring.
Umsebenzi we-piston ring uquka ukutywinwa, ukulawula ioli (ulawulo lweoli), ukuqhuba ukushisa (ukudluliselwa kobushushu), isikhokelo (inkxaso) iindima ezine. Ukutywinwa: kubhekiselele kwigesi yokutywina, musa ukuvumela igumbi lokutshisa igesi evuzayo kwi-crankcase, ukuvuza kwegesi kulawulwa ubuncinane, kuphucula ukusebenza kakuhle kwe-thermal. Ukuvuza komoya akuyi kunciphisa kuphela amandla e-injini, kodwa kwakhona kwenza ukuwohloka kweoli, owona msebenzi oyintloko wendandatho yegesi; Lungisa ioyile (ulawulo lweoyile) : Ioyile yokuthambisa egqithileyo eludongeni lwesilinda ichithwe, kwaye udonga lwesilinda lugqunywe ngefilimu yeoli encinci ukuqinisekisa ukuthambisa okuqhelekileyo kwecylinder kunye nepiston kunye neringi, owona msebenzi uphambili iringi yeoli. Kwiinjini zanamhlanje zesantya esiphezulu, ingqwalasela ekhethekileyo ihlawulwa kwindima yefilimu ye-oyile yokulawula i-piston; Ukuqhutyelwa kokushisa: ukushisa kwepiston kudluliselwa kwi-cylinder liner ngokusebenzisa i-piston ring, oko kukuthi, umphumo wokupholisa. Ngokutsho kwedatha ethembekileyo, i-70 ~ 80% yobushushu obufunyenwe yi-piston top of the piston engapholiswanga ihlakazwa ngendandatho yepiston kudonga lwesilinda, kwaye i-30 ~ 40% yepiston yokupholisa ihlakazwe ngeringi yepiston ukuya kwi-cylinder. udonga; Inkxaso: Iringi yepiston igcina ipiston kwi-cylinder, inqanda ukudibana ngokuthe ngqo phakathi kwepiston kunye nodonga lwesilinda, iqinisekisa ukuhamba kakuhle kwepiston, inciphisa ukuxhathisa ukukhuhlana, kwaye inqanda ipiston ekubetheni i-cylinder. Ngokubanzi, ipiston ye-injini yepetroli isebenzisa amakhonkco amabini erhasi kunye neringi yeoli enye, ngelixa injini yedizili ihlala isebenzisa amakhonkco e-oyile amabini kunye neringi yerhasi enye.
Ukuchongwa okuhle nokubi
Indawo yokusebenza yeringi yepiston ayiyi kuba ne-nicks, imikrwelo, i-peeling, i-cylinder yangaphandle kunye neendawo eziphezulu kunye nezantsi ezisezantsi ziya kuba nesiphelo esisisigxina, ukuphambuka kwe-curvature akuyi kuba mkhulu kune-0.02-0.04 mm, ukuhla okusemgangathweni indandatho kwi-groove ayiyi kudlula i-0.15-0.25 mm, kwaye i-elasticity kunye nokucima i-piston ring ihlangabezana neemfuno. Ukongeza, kufuneka kwakhona sijonge ukuvuza kokukhanya kweringi yepiston, oko kukuthi, ikhonkco lepiston lithe tyaba kwisilinda, sibeke isibane esincinci phantsi kweringi yepiston, sibeke isikrini sokukhanya ngaphezulu, kwaye emva koko sijonge umsantsa wokuvuza phakathi. umsesane wepiston kunye nodonga lwesilinda, olubonisa ukuba uqhagamshelwano phakathi kweringi yepiston kunye nodonga lwesilinda lulungile. Phantsi kweemeko eziqhelekileyo, ukuvuza kokukhanya komthungo weringi yepiston elinganiswe ngegeyiji yobukhulu akufanele kudlule i-0.03 mm. Ubude obuqhubekayo bokuvuza komthungo akufuneki bube bukhulu kune-1/3 yedayamitha yesilinda, ubude benani lezithuba zokuvuza ukukhanya akufunekanga zibe nkulu kune-1/3 yedayamitha yesilinda, kunye nobude obupheleleyo benani ukuvuza okukhanyayo akufanele kudlule i-1/2 yobubanzi be-cylinder, ngaphandle koko, kufuneka kuthathelwe indawo. I-piston yokumakisha i-GB / T 1149.1-94 icacisa ukuba zonke iiringi zepiston ezifunekayo ukuba zibe nolwalathiso lokunyuka ziya kuphawulwa kwicala eliphezulu, oko kukuthi, icala elikufutshane negumbi lokutshisa. Amakhonkco aphawulwe kwicala eliphezulu abandakanya: ikhonkco lekhowuni, i-chamfer yangaphakathi, i-ring yangaphandle yetafile yokusika, ikhonkco lempumlo, i-wedge ring kunye ne-oil ring efuna ulwalathiso lofakelo, kunye necala eliphezulu lomsesane liphawulwe.
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