Ekuqaleni kweminyaka yoo-1900 – malunga nexesha apho iinqanawa zomkhosi wamanzi zaziqala ukulinga iinjini zedizili – enye into entsha ebalulekileyo yayivela kwelinye icala le-propeller shaft line.
Kwisiqingatha sokuqala senkulungwane yamashumi amabiniimpompo mechanical sealyaba ludibaniso olusemgangathweni phakathi kolungiselelo lwe-shafting ngaphakathi kwinqanawa yenqanawa kunye nezinto ezivezwe elwandle. Itekhnoloji entsha ibonelele ngokuphucuka okumangalisayo ekuthembekeni kunye nomjikelo wobomi xa kuthelekiswa neebhokisi zokugxumeka kunye nezitywina zamadlala eziye zalawula intengiso.
Uphuhliso lwetekhnoloji ye-shaft mechanical seal iyaqhubeka nanamhlanje, kugxilwe ekwandiseni ukuthembeka, ukwandisa ubomi bemveliso, ukunciphisa iindleko, ukwenza lula ukufakela kunye nokunciphisa ukugcinwa. Amatywina ale mihla azoba kwimathiriyeli yanamhlanje, uyilo kunye neenkqubo zokwenza kunye nokusetyenziswa koqhagamshelo olwandisiweyo kunye nokufumaneka kwedatha ukwenza uhlolo lwedijithali.
NgaphambiliMechanical amatywina
Shaft mechanical sealsyayilinyathelo elimangalisayo eliya phambili ukusuka kubuchwephesha obabusetyenziswa ngaphambili ukuthintela amanzi olwandle ukuba angangeni kwi-hull ejikeleze i-propeller shaft. Ibhokisi yokuhlohla okanye idlala elipakishweyo libonisa into ephothiweyo, efana nentambo eqiniweyo kwishafti ukwenza itywina. Oku kudala itywina elomeleleyo ngelixa ivumela i-shaft ukuba ijikeleze. Nangona kunjalo, kukho izinto ezininzi ezingalunganga ezijongiswe sisitywina soomatshini.
I-friction ebangelwa yi-shaft ejikelezayo ngokuchasene nokupakisha ikhokelela ekugqokeni ixesha elide, okubangela ukuvuza okunyukayo kuze kube yilapho ukupakishwa kulungelelaniswa okanye ukutshintshwa. Okuxabisa ngakumbi kunokulungisa ibhokisi yokuhlohla kukulungisa i-propeller shaft, enokuthi yonakaliswe kukukhuhlana. Ngokuhamba kwexesha, ukuhlohlwa kunokwenzeka ukuba kunxibe i-groove kwi-shaft, enokuthi ekugqibeleni ilahle yonke i-propulsion ilungiselelo ngaphandle kokulungelelaniswa, okukhokelela ekubeni inqanawa ifune i-docking eyomileyo, ukususwa kweshafti kunye nokutshintshwa kwemikhono okanye nokuhlaziywa kweshaft. Okokugqibela, kukho ilahleko yokusebenza kakuhle kwe-propulsive ngenxa yokuba i-injini idinga ukuvelisa amandla angakumbi ukujikela i-shaft ngokuchasene nokugxunyekwa kwamadlala, ukumosha amandla kunye namafutha. Oku akunamsebenzi: ukuphumeza amazinga avuzayo awamkelekileyo, ukugxusha kufuneka kuqine kakhulu.
Idlala elipakishiweyo lihlala lilula, ukhetho olukhuselekileyo kwaye luhlala lufumaneka kumagumbi amaninzi eenjini ukwenzela ukugcina. Ukuba itywina lomatshini liyasilela, linokwenza inqanawa igqibezele umsebenzi wayo ize ibuyele kwidokhi ukuze ilungiswe. Kodwa itywina lobuso bomtshini bokugqibela elakhelwe koku ngokunyusa ukuthembeka kunye nokunciphisa ukuvuza ngokumangalisayo.
Amatywina oomatshini bokuqala
Inguquko ekutywineni izinto ezijikelezayo yeza nokuqonda ukuba ukwenziwa kwetywina ecaleni kweshaft - njengoko kusenziwa ngokupakisha - akuyomfuneko. Imiphezulu emibini - enye ejikelezayo kunye ne-shaft kwaye enye igxininiswe - ibekwe i-perpendicular kwi-shaft kwaye icinezelwe kunye ne-hydraulic kunye ne-mechanical force ingenza i-seal eqinile ngakumbi, ukufunyanwa okuhlala kubhekiselwa kwinjineli uGeorge Cooke kwi-1903. Izitywina zokuqala ezisetyenziselwa urhwebo zaphuhliswa ngo-1928 kwaye zasetyenziswa kwiimpompo ze-centrifugal kunye neecompressors.
Ixesha lokuposa: Oct-27-2022