Ukuphucula ubomi betywina, ukuchasana kwe-frictional of the main seal kufuneka kube ngaphantsi, okudinga ifilimu yeoli kwindawo yokutyibilika kwetywina eliphambili.Olu luhlu lwe-friction coefficients yokwenziwa kwefilimu yeoli ikwabizwa ngokuba yi-fluid lubrication kwithiyori yokuthambisa.Kolu luhlu, i-wo yetywina.i-rking surface kwi-cylinder okanye intonga idityaniswe nefilimu yeoli, ngoko, isitywina sinobomi obude benkonzo ngaphandle kokugqoka, nokuba kwenzeka ukunyakaza okuhambelanayo.Ke ngoko, ingqwalaselo efanelekileyo inikwe kuyilo kunikezelo loxinzelelo loqhagamshelwano olulungelelanisiweyo, olwenza ukuba ifilimu ye-oyile ivelise ifilimu kwindawo yesilayidi.Oku kuyinyani kungekuphela nje kwiitywina ezidibeneyo, kodwa nazo zonke izitywina zehydraulic.
Imigaqo yoyilo lweetywina ezidibeneyo ibandakanya oku kulandelayo:
① Umlinganiselo opheleleyo wokunyanzeliswa kwetywina elidityanisiweyo lixatyiswe ngokufanelekileyo ngokweempawu zezinto eziphathekayo.Imveliso yelizwe elikhululekile kunye ne-groove phakathi kwe-gap, kodwa ingabi nkulu kakhulu, ukuze ingagungqi kwi-groove.
② umsesane wokutywina: elona tywina.Ubukhulu bayo abunakutyeba kakhulu, ngokubanzi kwi-2 ~ 5mm, kuxhomekeke kwisixhobo esithile sokutywina;ububanzi bayo abunakuba banzi kakhulu, okusebenzayo band yokutywina ububanzi lidlula ixabiso elithile kunokuqwalaselwa kunye negroove yokuthambisa, ukunqanda ukwenzeka kwengxabano eyomileyo kunye nesenzeko esirhubuluzayo.
③ i-elastomer: indima kukubonelela ngenkxaso ngokuqhubekayo ukuqinisekisa ukuba indibaniselwano yokutywina isiphumo sokutywinwa.Ngokobulukhuni bezinto eziphathekayo, i-modulus ye-elasticity kunye nezinye isantya esifanelekileyo soxinzelelo, ububanzi bayo kunye nobubanzi be-groove ukushiya isithuba esifanelekileyo phakathi.Qinisekisa ukuba i-elastomer inesithuba esaneleyo sokuhamba emva kwe-extrusion.
④Ukugcina umsesane: indima kukuqinisekisa ukuzinza kwendawo ye-elastomer emva kokulayisha kwi-groove, ukwenzela ukuba kuphuculwe ukuzinza komsesane wokutywina ngokubanzi.Idityaniswe neringi yokutywina kunye noyilo olupheleleyo lwe-elastomer.
⑤ Indandatho yesikhokelo: Umsebenzi kukukhokela kunye nokuqinisekisa ukuhamba kakuhle kunye nokuzinza kwepiston kwi-cylinder, ukuthintela iindawo zensimbi zepiston ukuba zidibanise ne-cylinder steel barrel kunye nokonakalisa umphezulu we-cylinder steel barrel.Ulwakhiwo ngokubanzi lwamkela umgangatho we-GFA /GST.
Ixesha lokuposa: Jul-21-2023
