n chero yemazuva ano injini inopisa mukati, zvisimbiso zvinopihwa kudzivirira mafuta kubva mumusoro wecylinder kuti asapinda mumakamuri ekupisa - mafuta deflector caps.Dzidza zvose pamusoro pezvikamu izvi, marudzi avo, dhizaini uye musimboti wekushanda, pamwe chete nesarudzo yakarurama uye kuchinjwa kwekapu - dzidza kubva munyaya ino.
Chii chinonzi mafuta deflector cap?
Oil deflector cap (oil scraper cap, valve seal, valve gland, valve sealing cuff) chinhu chekuisa chisimbiso chemagetsi ekuparadzira gasi yejini inopisa mukati ine mavharuvhu epamusoro;Chivharo cherabha chakasungirirwa paruoko rwegwara uye hunde revharuvhu kubvumira mafuta einjini kupinda mukamuri rinopisa.
Ivhavha yemagetsi inowanikwa mumusoro we cylinder inogadzira dambudziko rakakomba: mukana wemafuta anopinda mumakamuri ekupisa kubva pamusoro pemusoro.Oiri inopinda nemumikaha iri pakati pemadzinde evharuvhu uye maoko ekutungamira, uye hazvigoneke kubvisa mikaha iyi.Kuti ugadzirise dambudziko iri, zvakakosha zvekuvhara zvinhu zvinoshandiswa - mafuta scraper (mafuta-deflecting) zvivharo zviri pamusoro pegwaro uye kuvhara gap pakati pevhavha stem uye gwara.
Oil scraper caps inoita mabasa maviri:
● Kudzivirirwa kwekupinda kwemafuta mumakamuri ekupisa emagetsi kana mavhavha akazarurwa;
● Kudzivirirwa kwemagasi emhepo kubva muimba yekupisa inopinda mumagetsi ekugovera gasi iri pamusoro.
Kutenda kumakapisi, kuumbwa kwakakosha kwemusanganiswa unopisa mumakamuri ekupisa kunopihwa (mafuta haapinde mairi, izvo zvinogona kukanganisa kupisa kwemusanganiswa, zvichikonzera kuwedzera kweutsi uye kuderera kwesimba hunhu hweinjini. ), inoderedza kusimba kwekabhoni deposits pakamuri inopisa uye mavharuvhu (kabhoni deposits inogona kutungamirira mukuderera kwehuwandu hwekuvharwa kwevhavha) uye inodzivirira kusvibiswa kwakanyanya kweinjini mafuta.Zvisizvo, zvivharo zvakasakara zvinozviita kuti zvinzwe, zvinokanganisa kushanda kweinjini, saka dzinofanira kuchinjwa nokukurumidza sezvinobvira.Asi usati waenda kuchitoro kune zvitsva zvisimbiso zvemafuta evhavha, unofanirwa kunzwisisa maitiro avo aripo, magadzirirwo uye maitiro.
Magadzirirwo emafuta scraper cap
Mhando uye dhizaini yemafuta deflector caps
Yese gland valve zvisimbiso zvinoshandiswa painjini dzemazuva ano zvinogona kukamurwa kuita mhando mbiri zvichienderana nedhizaini uye yekuisa nzira:
● Cuff caps;
● Flange caps.
Zvikamu zvemarudzi ese ane dhizaini yakafanana, inosiyana chete mune imwechete ruzivo uye yekuisa chimiro.
kuiswa kwecuff type oil scraper cap
Magadzirirwo echivharo chemhando yemuromo anobva pane dhayamita yerubha sleeve, chikamu chayo chezasi chinogadzirwa kuti chienderane nedhayamita yevhavha rinotungamira sleeve, uye chikamu chepamusoro chine dhayamita yehunde yevharuvhu.Iyo cap inogadzirwa nemhando dzakasiyana siyana dzerabha dzinopesana neakakwira kupisa uye mechanical mitoro, kazhinji kazhinji fluororubber.Iyo yemukati yekumusoro yekavha - iyo yepamusoro yekukodzera kune gwara - yakashongedzwa kuti ive nechokwadi chekubata kwakanakisa uye snug fit.Kumusoro kwechitsiko chevhavha chinowanzoitwa muchimiro chekushanda kwekushanda nemabheji anopa kubviswa kwemafuta zviri nani kubva pachitsiko apo valve inofamba ichidzika.
Pamusoro pekunze kwechivharo pane chinhu chinosimbisa - mhete yesimbi yesimbi, iyo inoita kuti zvive nyore kushanda paunenge uchiisa chisimbiso chemafuta uye kutendeseka kwayo panguva yekushanda injini.Muchikamu chepamusoro (panzvimbo yekunamatira kutsvimbo yevharuvhu) pachivharo pane chitubu checoil chakakungurutswa mumhete - inopa kubatana kwakasimba kwezvikamu, kudzivirira kupinda kwemafuta uye kubuda kwemagasi emhepo kubva mukamuri yekupisa. .
Zvimiro, zvivharo zvinoputika zvakafanana nemiromo, kunze kwechidimbu chimwe chete: mune izvi zvisimbiso zvemafuta, mhete yekuomesa simbi ine hurefu hwakawedzerwa, uye muchikamu chezasi inopinda muflange ine dhayamita yakakura kupfuura chivharo pachayo. .Paunenge uchiisa chivharo chakadaro, chitubu chevhavha chinogara pane flange, kuve nechokwadi chekuchengetedzwa kwakachengeteka kwechisimbiso.
Izvo zvinofanirwa kucherechedzwa kuti nhasi kune zvakare mafuta deflector caps ye composite dhizaini.Chikamu chavo chepasi chinogadzirwa ne denser uye kupisa-resistant rubber, uye chikamu chepamusoro chinogadzirwa nerabha rakawanda rakapetwa, rinowana kupikisa kwakanyanya kwechikamu kune mitoro yakasiyana-siyana.Kubatana kwezvikamu kunoitwa nemhete yesimbi yechimiro chakaoma.
Zvinoenderana nechinangwa chavo, mafuta ekutsvaira zvivharo akakamurwa kuva marudzi maviri:
● Yemavharuvhu ekutora;
● Yemavharuvhu emhepo.
Sezvo mavharuvhu ekutora uye ekupera ane madhayamita akasiyana pane injini imwe chete, zvisimbiso zvinowirirana zvakaiswawo pavari.Nekuzivikanwa kwakavimbika uye kuisirwa kwakaringana kwekupinza uye kupera kwevhavha caps, vane mavara akasiyana.
Kuiswa kweflange-mhando yemafuta scraper cap
Sezvakatoratidzwa, mafuta e-deflector caps akaiswa zvakananga pamavhavha ekufambisa maoko uye anovhara mashizha evhavha nechikamu chawo chepamusoro.Mafuta anoyerera achidzika pasi pemadzinde evharuvhu anomiswa nemucheto wekushanda kumusoro kwevhavha, iyo inodzivirira kuti irege kupinda mukamuri rinopisa.Nenzira imwecheteyo, magasi ekupedza anochengeterwa kune reverse side (iyo inofambiswa nemhete chitubu).Iko kusimba kweiyo yekushanda kumucheto kune tsinde yevharuvhu inosimbiswa nezvose zviri zviviri elasticity yerubha uye yakawedzera chitubu mhete.Nhamba yemafuta scraper caps mujini inoenderana nenhamba yevhavha yakaiswa pairi.
Maitiro ekusarudza uye kutsiva mafuta deflector caps nenzira kwayo
Oil scraper caps zvikamu zvinotsiviwa zvinofanirwa kutsiviwa nezvitsva pazvinosakara.Kune injini dzakasiyana, mazwi akasiyana akagadzirirwa kuchinjwa kwekapisi - kubva pa50 kusvika ku150,000 km.Nekudaro, zvisimbiso zvinowanzosakara nguva isati yakwana, kudikanwa kwekuzvitsiva kunoratidzwa nekuwedzera utsi hwekubuda, kuwedzera kushandiswa kwemafuta, uye mumajini epeturu - zvakare kumwaya makenduru nemafuta.Izvi zvinoratidza kuti mipendero yekushanda yezvivharo yakatorasikirwa nekusimba kwayo uye haikodzeri zvakasimba kune stem yevhavha, kana zvivharo zvinongoputika, zvakakanganiswa kana kuparadzwa.
Flanged mafuta scraper caps
Kuti utsive, zvinodikanwa kutora iwo akafanana oiri scraper caps akaiswa pane injini kare.Mune zvimwe zviitiko, zvimwe zvisimbiso zvemafuta zvinogona kushandiswa, asi zvakakosha kuti zvinyatso kutevedzera zviyero zvekutanga zvekuisa uye zvinhu zvekugadzira (kunyanya maererano nekupisa kupisa), zvikasadaro zvivharo hazvizowire munzvimbo uye hazvizopi. chisimbiso chemazuva ose.
Kutsiviwa kwemafuta deflector caps kunofanirwa kuitwa zvinoenderana nemirairo yekugadzirisa nekugadzirisa mota.Kazhinji, nzira iyi inowira kune zvinotevera:
1.Bvisa cylinder head cover;
2.Kana zvichidikanwa, bvisa camshafts, rocker arms uye zvimwe zvikamu zvetiming drive izvo zvichakanganisa basa;
3.Shandura crankshaft yejini kuitira kuti piston, pamavharuvhu ayo mavharuvhu achachinja, amire panzvimbo yepamusoro yakafa (TDC);
4.Kuomesa mavhavha ibasa rakasiyana rinoitwa maererano nemirairo yaro.Nekuomeswa, zvinodikanwa kuve neyakagadzirirwa mudziyo wekumanikidza mavharuvhu zvitubu, magineti ekubvisa crackers ichabatsirawo;
5.Mushure mokubvisa zvitubu, bvisa (press) chivharo - zvakanakisisa kushandisa chigadziro chakakosha chine collet grip, asi iwe unogona kungoshandisa pliers kana maviri screwdrivers, asi pano zvakakosha kuti usakuvadza tsinde yevhavha;
6.Tora chivharo chitsva, zora mukati maro nemafuta uye uise pa sleeve uchishandisa mandrel inokosha.Iwe unogona kutanga wabvisa chitubu kubva muvharo uye wozoisa pairi.Zvakanyanya kuoma kuisa cap pasina mandrel uye zvinenge nguva dzose izvi zvinotungamirira kukuvadza kune chikamu;
7.Ita maitiro akatarwa kune ese caps uye uunganidze zvakare.
Zvinonyanya kukosha kushandisa michina yakakosha kutsiva mafuta deflector caps - inertial puller uye mandrel yekutsikirira.Kana zvisina kudaro, kune ngozi yakawanda kwazvo yekuparadza basa rose uye kushandisa mari yakawedzerwa.Mushure mekutsiva, zvivharo hazvidi kutarisirwa kwakakosha, zvinongodiwa dzimwe nguva kuti utarise mamiriro avo maererano nehunhu hweinjini.
Nekusarudzwa kwakakodzera uye kuchinjwa kwemafuta ekutsvaira mashizha, mafuta ari mumusoro we cylinder haazokonzeri matambudziko, uye kushanda kwejini kuchasangana nemitemo.
Nguva yekutumira: Jul-26-2023