Mune injini dzine mavharuvhu epamusoro uye zvimwe zvigadziriso zvenguva, chivharo chinopiwa, icho chinoiswa pamusoro wecylinder kuburikidza ne gasket.Verenga pamusoro pekuti gasket yevhavha yevhavha chii, ndeapi marudzi uye kuti inoshanda sei, pamwe nesarudzo yayo chaiyo uye kutsiva, verenga chinyorwa.
Chii chinonzi valve cover gasket?
Valve cover gasket (cylinder head cover gasket) chinhu chisimbiso chezvinodzokorodza injini dzinopisa dzemukati dzine mavharuvhu epamusoro emuchina wekugovera gasi;Elastic gasket yekuvhara vhoriyamu yakavharwa necylinder head cover yakaiswa pamusoro wecylinder.
Iyo cylinder head cover cover gasket inoita mabasa akati wandei:
- Kuvimbisa kusimba kwechivharo kumusoro;
- Kuvhara vhoriyamu yakavharwa nevhavha kudzivirira kubuda kwemafuta;
- Kudzivirirwa kwezvikamu zvevharuvhu nemafuta kubva pakusvibiswa (kubva kutsvina, guruva, exhaust magasi, nezvimwewo).
Iyo gasket yevhavha yevhavha haisi chikamu chakakosha chekushanda kwejini - pasina iyo, simba remagetsi richashanda zvakakwana.Nekudaro, inovimbisa kuchena kweinjini, kuchengetedzwa kwayo kwemoto (kudzivirira kubuda kwemafuta uye kuitora pazvikamu zvinopisa - manifold exhaust nevamwe) uye nyore kugadzirisa.Mukuwedzera, iyo gasket inobatsira kuchengetedza kuchena uye maitiro einjini mafuta.Nokudaro, kana kuputika kuchionekwa kubva pasi pechifukidziro, gasket inofanira kuchinjwa, uye kuitira kuti uite sarudzo yakarurama, unofanirwa kunzwisisa marudzi, maitiro uye maitiro ezvikamu izvi.
Mhando, dhizaini uye hunhu hwevhavha yevhavha gaskets
Pasinei mhando, zvose vharafu vharafu gaskets vane zvakafanana mudziyo musimboti.Ichi chikamu chakati sandara chinodzokorora chimiro chendege yekunamatira kwechifukidziro kune cylinder musoro, uye ine maburi ezvitsigiro uye zvimwe zvikamu.Iyo gasket inoiswa pasi pechifukidziro, uye nekuda kwekusimba kwayo, inovhara mukaha pakati pechivharo uye cylinder musoro (kuzadza mune micro-zvisina kurongeka uye kubhadhara kudiki kutsauka kwenzvimbo yavo yebutt kubva mundege), kuve nechokwadi chekuisa chisimbiso.
Muchiitiko ichi, gaskets inogona kuva yakasiyana dhizaini:
● Yese (isina-discontinuous) - annular gasket kana gasket yechimiro chakaoma (somuenzaniso, pasi pezvivharo zvejini dzine maviri camshafts pamusoro wecylinder) pasina kuputika, iyo inongoiswa pasi pechifukidziro;
● Composite - gasket ine mapeji uye kuiswa kwekuvhara camshaft inlet kana zvimwe zvikamu;
● Kuzadza - kuwedzera kune gasket huru, kititi inogona kusanganisira mamwe maO-ring seals ematsime emakenduru uye mamwe maburi muchivharo.
Vavhavha inovhara ne gasket uye nzvimbo yavo mumagetsi unit
Valve yekuvhara gaskets inogona kukamurwa kuita akati wandei marudzi zvichienderana neyakagadzirwa uye kushanda nemhando dzakasiyana dzesilinda musoro.
Zvinoenderana nekugadzirwa kwegaskets ndezvi:
● Rubber;
● Rubber-cork;
● Paronite;
● Kadhibhodhi.
Mhando yekutanga yezvigadzirwa zvinogadzirwa pahwaro hwekupisa-kupisa uye mafuta-resistant rubber, iyo inogadziriswa nekuwedzera uye inotevera vulcanization.
Rubber gasket valve chivharo
Iyo rubber gasket inogadzirwa kubva kumagiredhi akasiyana-siyana erabha, ndiyo yakanyanya elastic, zvisinei, nekuda kwekukanganisa kwezvinhu zvinogadzirwa, inogona kuchinja zvakanyanya maitiro ayo panguva yekushanduka kwekushisa (kupfava pakupisa kwakanyanya, kuita kushomeka mukutonhora. ) uye kazhinji ane kusimba kushoma.
Rubber cork gaskets inogadzirwa pahwaro hwerubha, kune iyo granular cork kana mamwe porous fillers anowedzerwa.Zvinhu zvakadaro zvinopa dhigirii yakakwira yekuisa chisimbiso uye vibration yekuzviparadzanisa nevamwe, asi gaskets akagadzirwa naro ari kudiwa zvakanyanya pamhando yekuisa uye kuiswa kwechivharo, ivo vanowanzoda kuwedzera kurapwa ne liquid sealant uye vane hupenyu hushoma hwebasa.
Rubber plug gasket valve cover
Paronite gaskets inogadzirwa ne paronite, rubber-based material ine zvakasiyana-siyana zvicherwa zvekuwedzera, izvo zvinowedzera kuumbwa uye vulcanized.Paronite inogona kuva asbestos uye asbestos-isina, asi nhasi vagadziri vari kusiya kushandiswa kweasbestos vachida zvinhu zvakachengeteka.Zvakare, paronite gaskets inogona kunge yakajairwa isina kusimbiswa uye yakasimbiswa newaya yesimbi, yakaonda perforated tin, etc. Ndiyo paronite gaskets yehumburumbira yemusoro inovhara iyo inonyanya kushandiswa nhasi nekuda kwekuvimbika kwayo, kuramba kune zvakaipa uye kunaka kwekuisa chisimbiso.
Kadhibhodhi mapedhi akagadzirwa nemagiredhi akakosha epepa gobvu akagadziridzwa kuti awane kupokana nemafuta, peturu, mvura uye zvimwe zvinokanganisa.Aya ma gaskets ndiwo akachipa, asi ndiwo mashoma akavimbika, saka nhasi anoshandiswa pane zviri nyore injini.
Zvinoenderana nekushanda kwegasket yevhavha yevhavha, inogona kukamurwa kuita mapoka maviri:
● Pamusoro pemisoro yehumburumbira - mu-in-line uye V-yakaita injini ine musoro wakafanana uye chivharo chezvose kana mutsara wemasilinda;
● Pamisoro yemasilinda yakasiyana - mumainjini ane misoro yega yega uye mavhavha ehumburumbira yega yega.
Zvimiro, gaskets yemisoro yakajairwa uye yakaparadzana haina kusiyana, inongova nehukuru hwakasiyana hwemavhavha anoenderana.
cylinder head cover gaskets inogadzirwa zvinoenderana nezviyero zveautomaker, uye ivo vanogona zvakare kutevedzera epamba zviyero GOST 481-80, GOST 15180-86 nevamwe.
Nyaya dzekusarudza uye kutsiva kwevhavha yevhavha gasket
Ivhavha yekuvhara gasket chikamu chakakosha, asi inogara kwenguva pfupi uye inowanzoda kuchinjwa.Kazhinji, kutsiva gasket kunoitwa mumamiriro anotevera:
● Kuonekwa kwemafuta anodonha kubva pasi pechifukidziro (izvi zvinoratidza kukanganisa kana kuparadzwa kwegasket pamusana pema mechanical uye chemikemikari, kana semugumisiro wekukwegura kwechisikigo);
● Nekugadzirisa kwega kwegasi rekugovera gasi;
● Muchiitiko chekugadzirisa kwechikwata chemagetsi kana kuchinjwa kwezvikamu zvayo zvega kana magungano - cylinder head, valve covers nezvimwe;
● Nekugadzirisa nguva dzose, kana inopiwa nemugadziri weinjini.
Kuti utsive, iwe unofanirwa kusarudza gasket rakagadzirirwa iyi chaiyo mhando uye modhi yemagetsi unit, sezvo zvikamu zvemamwe ma motors hazvingokwane muhukuru uye kumisikidzwa.Zvisinei, pane zvingasarudzwa zvekusarudza zvinhu zvekugadzira gasket.Kune mota nyowani pasi pewaranti, zvinodikanwa kushandisa gasket yakagadzirwa nezvinhu zvakatsanangurwa nemugadziri, mune iyi kesi, kutsiva kwechikamu kunofanirwa kuvimbwa chete kune nyanzvi.
Kune dzimwe mota, unogona kusarudza gasket rakagadzirwa nerabha, paronite kana rubber chivharo - musimboti, magasi emazuva ano anomisikidzwa maererano nehunhu, saka iwo ese ane anenge akafanana hunhu.Ichokwadi, pano iwe unofanirwa kuyeuka nezvesimba hunhu uye nyore kwekugadzika kwegaskets yakagadzirwa nezvinhu zvakasiyana.Semuenzaniso, paronite gaskets ndiyo yakanyanya kuoma, saka ndiyo iri nyore kuisa, uye zvigadzirwa zve rubber cork, pane zvinopesana, zviri nyore kuremara uye kubvaruka, saka kuiswa kwavo ndiko kwakanyanya kuoma uye kunoda kunyatsotarisirwa.
Kutsiviwa kwe cylinder head cover gasket kunofanira kuitwa maererano nemirairo yekugadzirisa motokari.Kazhinji, basa iri rinowira pasi kune zvinotevera:
1.Dismantle midziyo inokanganisa kusvika kune chivharo chevhavha - bvisa firiji, bvisa mapaipi akasiyana-siyana;
2.Bvisa chivharo, bvisa gasket yekare, kuchenesa nzvimbo dzekuzadza kwevhavha uye cylinder musoro;
3.Isa gasket idzva;
4.Isa chivharo, simbisa mabhoti nenzira yakarurama - kuyambuka kubva pakati kusvika kumicheto.
Nekumisikidzwa kwemamwe marudzi emagaskets, zvingave zvakafanira kudzikisira pasi pemusoro wecylinder uye chivharo, uye mushure mekuiswa, suma sealant mune dzimwe nzvimbo (kana kubata mubatanidzwa wezvikamu nayo) - izvi zvinoratidzwa mukati. mirayiridzo.Nekusarudzwa kwakakodzera uye kutsiva gasket, kana yaiswa pasina kukanganisa mukusimbisa mabhaudhi uye pasina zvimwe zvikanganiso, vhoriyamu iri pasi pechifukidziro ichavharwa zvakavimbika, saka injini icharamba yakachena, uye mashandiro evhavha ichave. kudzivirirwa kubva kune zvakasiyana-siyana zvakaipa.
Nguva yekutumira: Jul-26-2023