Indandatho ye-piston.
I-Piston Ring (Piston Ring) isetshenziselwa ukushumeka i-piston groove ngaphakathi kwendandatho yensimbi, indandatho yepiston ihlukaniswe izinhlobo ezimbili: indandatho yokucindezela kanye nendandatho kawoyela. Indandatho yokucindezela ingasetshenziselwa ukuvala igesi yengxube evuthayo ekamelweni elivuthayo; Indandatho kawoyela isetshenziselwa ukukhuhla uwoyela oweqile kusilinda. Indandatho ye-piston iwuhlobo lwendandatho yensimbi enwebekayo ene-deformation enkulu yangaphandle, eqoqwe kuphrofayili kanye nomsele ohambisana nawo we-annular. Izindandatho zepiston eziphindaphindayo nezizungezayo zincike emehlukweni wengcindezi yegesi noma uketshezi ukuze akhe uphawu phakathi kwendilinga yangaphandle yeringi nesilinda nohlangothi olulodwa lweringi kanye negroove yeringi.
Umsebenzi wendandatho ye-piston uhlanganisa ukubekwa uphawu, uwoyela olawulayo (ukulawula uwoyela), ukuqhutshwa kokushisa (ukudlulisa ukushisa), isiqondiso (ukusekelwa) izindima ezine. Ukubeka uphawu: kubhekiselwa kwigesi yokuvala, ungavumeli ukuvuza kwegesi yegumbi elivuthayo ku-crankcase, ukuvuza kwegesi kulawulwa okungenani, kuthuthukisa ukusebenza kahle okushisayo. Ukuvuza komoya ngeke kunciphise amandla enjini kuphela, kodwa futhi kwenza ukuwohloka kwamafutha, okuwumsebenzi oyinhloko wendandatho yegesi; Lungisa uwoyela (ukulawula uwoyela) : uwoyela wokugcoba owedlulele odongeni lwesilinda uyakhishwa, futhi udonga lwesilinda lumbozwe ifilimu yamafutha amancane ukuze kuqinisekiswe ukugcotshwa okujwayelekile kwesilinda nepiston nendandatho, okuwumsebenzi oyinhloko indandatho yamafutha. Ezinjini zanamuhla ezinesivinini esikhulu, ukunakwa okukhethekile kunikezwa indima yefilimu yokulawula indandatho ye-piston; Ukushisa kokushisa: ukushisa kwepiston kudluliselwa ku-cylinder liner ngokusebenzisa indandatho ye-piston, okungukuthi, umphumela wokupholisa. Ngokusho kwedatha ethembekile, u-70 ~ 80% wokushisa otholwe ngenhla yepiston yepiston engapholisiwe uhlakazwa ngeringi ye-piston odongeni lwesilinda, futhi u-30 ~ 40% wepiston yokupholisa uhlakazwa ngeringi yepiston kuya kusilinda. udonga; Ukusekela: I-piston ring igcina i-piston kusilinda, ivimbela ukuthintana okuqondile phakathi kwepiston nodonga lwesilinda, iqinisekisa ukunyakaza okushelelayo kwepiston, inciphisa ukumelana nokungqubuzana, futhi ivimbela i-piston ekushayeni isilinda. Ngokuvamile, ipiston yenjini kaphethiloli isebenzisa izindandatho ezimbili zegesi nendandatho kawoyela eyodwa, kuyilapho injini kadizili ivamise ukusebenzisa izindandatho zikawoyela ezimbili nendandatho eyodwa yegesi.
Indlela efanele yokufaka indandatho yepiston imi kanje:
1. Okokuqala udinga ukufaka indandatho kawoyela, bese indandatho yegesi, i-oda liphansi phezulu;
2. Uma indandatho ngayinye ifakiwe, ukuvulwa kweringi ye-piston akufanele kunwetshwe kakhulu, ngokwanele ukungena ku-piston;
3. Faka indandatho kawoyela ehlanganisiwe:
Faka indandatho ye-liner ku-piston oil ring groove, qaphela ukuvulwa kwendandatho ye-liner ayikwazi ukudlulana; Faka amapuleti ensimbi angaphansi nangaphezulu ngaphandle kokusebenzisa amathuluzi ukuze uvule izimbobo. Lapho ufaka, qala ubambe isiphetho esisodwa sensimbi ephansi endaweni yokukhala, cindezela indawo yokuvula ipuleti lensimbi ngesithupha sakho, slayida isithupha sesinye isandla endaweni yokukhala eceleni kwe-steel plate, bese ulayisha upper steel plate ngendlela efanayo. Ungafaki amapuleti ensimbi angaphezulu naphansi ohlangothini olulodwa lwendandatho ye-liner; Ukuze ugweme ukugqagqana okungaba khona kokuvuleka kweringi ye-liner lapho ipiston iphushwa kusilinda, nyakazisa izimbobo zamapuleti angenhla nangaphansi ngamalunga eringi ngamadigri angu-90 kuya kwangu-120. Ngemuva kokufakwa, zungeza ngobumnene indandatho yamafutha ehlanganisiwe ngesandla, futhi kufanele ibe bushelelezi ngaphandle kokunamathela.
4. Ukufakwa kweringi yegesi:
Sebenzisa amathuluzi akhethekile ukufaka izindandatho ezimbili zegesi kanye nendandatho yegesi eyodwa ngokushintshana, ungahlehlisi indandatho yokuqala yegesi kanye nendandatho yesibili yegesi; Uma ifakiwe, uhlangothi luphawulwe (HYR, HY, CSR, TLK, ALS, H, R, njll.). Kufanele ibheke phezulu (i-piston head direction); Ukunyakazisa ukuvuleka kwendandatho yegesi ngamadigri angu-180, ungajiki indawo yokuvula iqonde lapho kukhomba khona ipiston.
5. Ngaphambi kokuhlanganisa indandatho ye-piston kusilinda, kuyadingeka ukulungisa indawo yokuvula indandatho ngayinye ye-piston.
Umsebenzi wendandatho ye-piston:
1. Umphumela wokuvalwa
Indandatho ye-piston ingakwazi ukugcina uphawu phakathi kwepiston nodonga lwesilinda, futhi ukuvuza kulawulwa okungenani, okuthwalwa yindandatho yegesi. Ingavimbela isilinda nepiston noma isilinda neringi yepiston ngenxa yokuvuza komoya phakathi kokulunywa; Kungavimbela futhi ukwehluleka okubangelwa ukuwohloka kwamafutha okugcoba.
Isinyathelo sesi-2 Yenza ukushisa
Indandatho yepiston ingadlulisa futhi ihlakaze ukushisa okuphezulu okukhiqizwa ukusha odongeni lwesilinda, futhi ingadlala indima ekupholiseni ipiston.
3. Umsebenzi wokulawula uwoyela
Indandatho yepiston ingakhuhla uwoyela wokugcoba oxhunywe odongeni lwesilinda ukuze kugcinwe ukusetshenziswa kukawoyela okuvamile, okuthwalwa yindandatho kawoyela.
4. Umphumela osekelayo
Indandatho yepiston ihamba iye phezulu naphansi kusilinda, futhi indawo yayo eshelelayo ithwalwa ngokuphelele yiringi ye-piston, ivimbela i-piston ukuthi ixhumane nesilinda ngqo futhi idlale indima yokusekela.
Kunezinhlobo ezimbili zamasongo e-piston: izindandatho zegesi nezindandatho zikawoyela. Indandatho yegesi isetshenziselwa ukuqinisekisa ukuvala phakathi kwepiston nesilinda nokuvala umoya ocindezelwe egumbini elivuthayo. Indandatho kawoyela isetshenziselwa ukukhuhla uwoyela oweqile kusilinda, okungavimbela uwoyela ukuthi ungaphunyuki kusilinda futhi ushise.
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