Chinangwa chemafuta zvisimbiso ndechekupa chisimbiso pakati peiyo inotenderera crankshaft nekunze.Classical oiri zvisimbiso zvine imba yesimbi inotakura muromo wekuisa chisimbiso uye zvakare inopa iyo static yekuisa chisimbiso basa.Muromo wekuvharisa wezvisimbiso zvemafuta unowanzo gadzirwa ne elastomer zvinhu, uye uri kusangana nepamusoro peiyo shaft inotenderera.Apa, muromo unotsikirirwa pamusoro peshaft pachishandiswa mhete yechirimo.Nekuda kwekufamba kwekutenderera, pane chisimbiso gap of approx.1 µm pamuromo wemuromo.Oiri inogona kupinda mugedhi iri, iro rinoshanda kuzora muromo wekuvhara.
Kuenderera mberi kuri kuitika mukugadzirwa kweinjini kunokonzeresa kudiwa kwakanyanya parudzi urwu rwechisimbiso chemafuta.Kumhanya kweinjini yepamusoro uye tembiricha yemafuta, nguva refu pakati pekuchinja kwemafuta uye mafuta ekuzora ane akawedzera emazuva ano anoita zvehasha nezvinhu zvekuisa chisimbiso zvinoda mhinduro nyowani uye dzinogara.Zvinhu zvezvisimbiso zvemafuta emangwana zvinodaidzwa kuti POLYTETRAFLUOROETHYLENE kana kungoti PTFE.Izvi zvekugadzira zvinhu zvinonyanya kuzivikanwa pasi payo zita rekutengesa polymer.
Kupokana kwakaderera uye kushoma simba rekushandisa ndiwo mabhenefiti anopihwa nePTFE mafuta zvisimbiso.Izvi zvisimbiso zvinogona kushandiswa pasina matambudziko zvakare nekuoma kushanda kana kusakwana lubrication.Izvo zvinhu zvinopisa zvinopisa, zvine huwandu hwekushanda hwe -130 ° C kusvika +200 ° C, hazvina kukwikwidza.Uyezve, PTFE inoratidzirwa nekukwirira kwemakemikari kuramba uye yakaderera breakaway torque mushure mekumira.
Kana yapiswa, PTFE inoedza kudzokera kune yayo yekutanga fomu.Mune mamwe mazwi: Chinyorwa "chinorangarira" chimiro chayo chepakutanga.Ichi chiitiko chinozivikanwa seplastic memory effect, uye inobvumira zvisimbiso kuti zvivakwe pasina chitubu chekunyepedzera.Panguva yekugadzira, muromo wekuvhara unoumbwa semhete yakatsetseka, iyo inoumbwa kune mhete yekusimbisa.Panguva yekuungana pashaft, muromo wepakutanga wakavharika unowedzera uye unopeta kuti uenderane nedhayamita yeshaft.Pakarepo muromo wekuvhara uchipisa panguva yekushanda kweinjini, inoedza kudzokera kuchimiro chayo chepakutanga.
Imba yekunze yakagadzirwa nesimbi isina tsvina.Iyo O Mhete yefluoroelastomer inova nechokwadi chekuisa chisimbiso chakakwana.Iyo dhayamita yemukati yakanyatsoenderana neiyo kunze dhayamita.Iyo chaiyo yekuisa chisimbiso muromo inogadzirwa nekupfeka kwakanyanya kusagadzikana uye yakaderera friction PTFE.Chimwe chisimbiso cheguruva (rubber lip kana tambo yakanzwa) inopa chipingamupinyi chinoshanda kubva pakusvibisa zvimedu.
Nguva yekutumira: May-04-2020