Ekuqaleni kwawo-1900 - ngesikhathi imikhumbi yasolwandle iqala ukuhlola izinjini zikadizili - okunye okusha okubalulekile kwakuvela komunye umkhawulo womugqa we-propeller shaft.
Ngaphakathi kwengxenye yokuqala yekhulu lamashumi amabilifutha uphawu lwemishiniyaba yindlela evamile yokuxhumana phakathi kokuhlelwa kwe-shafting ngaphakathi kwesikebhe somkhumbi kanye nezingxenye ezivezwe olwandle.Ubuchwepheshe obusha bunikeze ukuthuthuka okumangazayo ekuthembekeni nasekujikelezeni kwempilo uma kuqhathaniswa namabhokisi okugxusha kanye nezimpawu zezindlala ezazibusa imakethe.
Ukuthuthukiswa kobuchwepheshe be-shaft mechanical seal kuyaqhubeka nanamuhla, kugxilwe ekuthuthukiseni ukwethembeka, ukwandisa ukuphila komkhiqizo, ukunciphisa izindleko, ukwenza lula ukufakwa nokunciphisa ukulungiswa.Izigxivizo zesimanje zidweba ezintweni ezisezingeni eliphezulu, ukwakheka kanye nezinqubo zokukhiqiza kanye nokuthatha ithuba lokukhula kokuxhumana kanye nokutholakala kwedatha ukuze kunikwe amandla ukuqapha kwedijithali.
NgaphambiliMechanical Seals
Izigxivizo ze-Shaft mechanicalbekuyisinyathelo esimangalisayo esiya phambili kusukela kubuchwepheshe obabusa phambilini obasetshenziswa ukuze kuvinjwe amanzi olwandle ukuthi angangeni emgodini ozungeze umgodi wophephela.Ibhokisi lokugxusha noma indlala epakishiwe ihlanganisa into eboshiwe, efana nentambo eqiniswa eduze kwe-shaft ukuze yakhe uphawu.Lokhu kudala uphawu oluqinile ngenkathi kuvumela i-shaft ukuthi ijikeleze.Kodwa-ke, kunezinto ezimbalwa ezimbi ezixazululwe yi-mechanical seal.
I-friction ebangelwa ukuzungeza kwe-shaft ngokumelene nokupakisha kuholela ekugugeni ngokuhamba kwesikhathi, okuholela ekuvuzeni okukhulayo kuze kube yilapho ukupakishwa kulungiswa noma kufakwa esikhundleni.Okubiza kakhulu kunokulungisa ibhokisi lokugxusha ukulungisa umgodi wophephela, nawo ongase ulinyazwe ukungqubuzana.Ngokuhamba kwesikhathi, ukugxusha kungase kufake i-groove kushafti, okungagcina kulahle yonke i-propulsion ilungiselelo ngaphandle kokuqondanisa, okuholela ekutheni umkhumbi udinge i-docking eyomile, ukususwa kwe-shaft nokushintshwa kwemikhono noma ngisho nokuvuselelwa kweshafu.Okokugcina, kukhona ukulahlekelwa ukusebenza kahle kwe-propulsive ngoba injini idinga ukukhiqiza amandla engeziwe ukuze iphendulele i-shaft ngokumelene ne-gland egcwele ukugxusha, imosha amandla kanye nophethiloli.Lokhu akunandaba: ukuze kuzuzwe amazinga okuvuza amukelekayo, ukugxusha kufanele kuqine kakhulu.
Idlala eligcwele lihlala lilula, inketho ehlulekayo futhi isatholakala emagumbini amaningi enjini ukuze kwenziwe ikhophi yasenqolobaneni.Uma isigxivizo esisebenza ngomshini sihluleka, singenza umkhumbi ukwazi ukuqedela umsebenzi wawo futhi ubuyele esikhumulweni semikhumbi ukuze uyolungiswa.Kodwa i-mechanical end-face seal eyakhelwe phezu kwalokhu ngokukhuphula ukwethembeka kanye nokunciphisa ukuvuza ngokumangalisayo nakakhulu.
Izimpawu Zokuqala Zemishini
Uguquko ekubekweni uphawu ezingxenyeni ezijikelezayo lweza nokuqaphela ukuthi ukwenza uphawu eduze kwe-shaft - njengoba kwenziwa ngokupakisha - akudingekile.Izindawo ezimbili - eyodwa ejikelezayo ne-shaft kanti enye igxilile - ibekwe i-perpendicular ku-shaft futhi icindezelwe ndawonye amandla angaphansi kwe-hydraulic kanye nemishini ingakha uphawu oluqinile nakakhulu, ukutholakala okuvame ukubizwa ngokuthi unjiniyela uGeorge Cooke ngo-1903.Izigxivizo zokuqala ezisetshenziselwa ukuhweba zathuthukiswa ngo-1928 futhi zasetshenziswa kumaphampu aphakathi nendawo nama-compressor.
Isikhathi sokuthumela: Oct-27-2022