I. Unyino oluSisiseko lwe-Trust Ball Bearings kwi-Aquatic Environments
1. Imiba yezinto eziphathekayo:
Iibheringi zebhola ezityhalayo eziqhelekileyo zenziwe ngentsimbi yekhabhoni (efana ne-GCr15), ethanda ukurusa emanzini. Idatha yovavanyo ibonisa ukuba iintsimbi ze-carbon ezingakhuselekanga zinokugqwala ukuya kwi-60% yendawo yazo emva kokucwiliswa emanzini ahlambulukileyo iintsuku ezingama-30 (jonga isifundo se-2021 kwi-Mechanical Engineering Materials). Ukuba kufuneka kuthintelwe amanzi, insimbi engenasici (efana ne-440C) okanye i-ceramic kufuneka isetyenziswe endaweni.
2. Ukusilela kokuthambisa:
Ukuthanjiswa kwegrisi yesiNtu kuyakukhukuliseka okanye kufakwe imifuziselo xa kufakwe emanzini. Umzekelo, i-friction coefficient yebheringi ethanjiswe nge-lithium{1}}esekelwe kwigrisi inyuka ngama-300% kwiiyure ezingama-24 emva kokuntywiliselwa emanzini (umthombo wedatha: SKF Technical Manual). Ukusetyenziswa ngaphantsi kwamanzi, igrisi engangenwa manzi (efana ne-polyurea{5}esekelwe kwigrisi) kufuneka ikhethwe okanye kutshintshwe isithambiso esiqinileyo.
3. Ukutywinwa kweeNtsilelo:
Iibheringi zethrust ezisemgangathweni azinazitywina, ezivumela amanzi ukuba angene ngokuthe ngqo kwiindlela zomdyarho. Uvavanyo lubonisa ukuba emva kokusebenza emanzini kwisantya sokuhamba kwe-1 m / s kwiiyure ze-10, isantya sokungena kwamanzi sangaphakathi kwiibhere ezivulekile zidlula i-90%.
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II. Izisombululo ezinokwenzeka zokuSebenzisa ngaphantsi kwamanzi
1. IiBearings ezikhethekileyo zokungaManzi:
- Ukuphuculwa kwezinto eziphathekayo: Umzekelo, i-NSK yaseJapan "i-Aqua Series" isebenzisa i-SUS304 insimbi engenasici kwaye ayibonisi i-rust emva kovavanyo lwe-500 yeyure yetyuwa.
- Ukuphuculwa kokutywina: Ukutywinwa kwerabha yomlomo -kabini (eyenziwe nge-NBR) inokuthintela i-99% yokufuma (kungqinwe ngokwe-ISO 281).
2. Amanyathelo oKhuseleko oloNgezelelweyo:
- Ikhava yokutywina yaNgaphandle: Ukongeza i-IP68 yezindlu ezilinganiswe nge-IP68 zonyusa iindleko malunga ne-20%, kodwa zinyusa ubude bobomi ngamaxesha amathathu.
- ULondolozo lwarhoqo: Igrisi kufuneka itshintshwe rhoqo ngeeyure zokusebenza ezingama-500 (i-Klüber's Aquatro 2 series iyacetyiswa).
III. Iingcebiso eziSebenzayo zokuSebenza
- Ngexesha elifutshane-imisebenzi yangaphantsi kwamanzi: Iibheringi eziqhelekileyo ezinento yokugquma yethutyana engangenwa manzi (efana ne-WD-40 yokutshiza) inokumelana ngaphantsi kweeyure ezingama-48.
Ukusetyenziswa kwexesha elide- ngaphantsi kwamanzi: Iibheringi eziyilelwe ngokukodwa iimoto ezingaphantsi kwamanzi (ezifana ne-THK's DSA series) zibalulekile. Ezi zibiza malunga ne-$80-$150 nganye kodwa zinika ubomi boyilo lweeyure ezingama-50,000.
Ukuqukumbela: Nokuba iibheringi zebhola ezityhidiweyo zinokusetyenziswa ngaphantsi kwamanzi kuxhomekeke kwiqondo lokhuseleko kunye nobomi bokusebenza. Abasebenzisi kufuneka balinganisele iindleko kunye nokusebenza, babeke phambili{1}}imodeli etywiniweyo, engenamanzi.
