Kumayambiriro kwa zaka za m'ma 1900 - panthawi yomwe sitima zapamadzi zinali kuyesa injini za dizilo - chinthu china chofunika kwambiri chinali kutuluka kumapeto kwa mzere wa shaft.
Kudutsa theka loyamba la zaka makumi awiripompa makina chisindikizokunakhala njira yolumikizirana pakati pa makonzedwe a shafting mkati mwa chombo cha sitimayo ndi zigawo zowonekera kunyanja.Ukadaulo watsopanowu udapereka kusintha kwakukulu pakudalilika komanso moyo wautali poyerekeza ndi mabokosi oyika zinthu ndi zisindikizo za gland zomwe zidalamulira msika.
Kupanga ukadaulo wa shaft mechanical seal kukupitilirabe lero, ndikuwunika kukulitsa kudalirika, kukulitsa moyo wazinthu zonse, kuchepetsa mtengo, kuphweka kukhazikitsa ndikuchepetsa kukonza.Zisindikizo zamakono zimagwiritsa ntchito zipangizo zamakono, mapangidwe ndi kupanga mapangidwe komanso kugwiritsa ntchito mwayi wowonjezereka wolumikizana ndi kupezeka kwa deta kuti athe kuyang'anira digito.
M'mbuyomuZimango Zisindikizo
Shaft makina osindikizirainali sitepe yodabwitsa kwambiri yochokera kuukadaulo womwe unkagwiritsidwa ntchito kale kuti madzi a m'nyanja asalowe m'chiboliboli chozungulira tsinde la propeller.Bokosi loyikapo zinthu kapena chithokomiro chodzaza ndi zinthu zolukidwa ngati zingwe zomwe zimangiriridwa mozungulira tsinde kuti apange chisindikizo.Izi zimapanga chisindikizo cholimba pamene chimalola shaft kuzungulira.Komabe, pali zovuta zingapo zomwe chisindikizo cha makinawo chinathana nazo.
Kukangana komwe kumachitika chifukwa cha shaft yozungulira pakupakira kumapangitsa kuti pakhale nthawi yayitali, zomwe zimapangitsa kuti pakhale kuchucha mpaka kusinthidwa kapena kusinthidwa.Chokwera mtengo kwambiri kuposa kukonza bokosi loyikapo zinthu ndikukonza shaft ya propeller, yomwe imathanso kuonongeka ndi kugundana.M'kupita kwa nthawi, kuyikako kumatha kuvala poyambira mutsinde, zomwe pamapeto pake zimatha kutaya dongosolo lonselo, zomwe zimapangitsa kuti chombocho chifune kuyika kowuma, kuchotsedwa kwa shaft ndikusintha manja kapena kukonzanso shaft.Potsirizira pake, pali kutayika kwa mphamvu yoyendetsa bwino chifukwa injini imayenera kupanga mphamvu zambiri kuti itembenuzire tsinde kuti ligwirizane ndi kudzaza kwa gland, kuwononga mphamvu ndi mafuta.Izi sizongonyalanyaza: kuti mukwaniritse mitengo yovomerezeka yotayikira, kuyikapo kuyenera kolimba kwambiri.
Gland yodzaza imakhalabe njira yosavuta, yolephera ndipo nthawi zambiri imapezeka m'zipinda zambiri zamainjini kuti zisungidwe.Chisindikizo cha makina chikalephera, chimatha kupangitsa chombocho kumaliza ntchito yake ndikubwereranso padoko kukakonza.Koma chisindikizo chakumapeto kwa makina chimamangidwira pa izi polimbikitsa kudalirika ndikuchepetsa kutayikira kwambiri.
Zisindikizo Zoyambirira Zamakina
Kusintha kwa kusindikiza kuzungulira zigawo zozungulira kunadza ndikuzindikira kuti kukonza chisindikizo pambali pa shaft - monga momwe amachitira ndi kulongedza - sikofunikira.Mawonekedwe awiri - amodzi ozungulira ndi shaft ndi ena okhazikika - atayikidwa perpendicular ku tsinde ndikukanizidwa pamodzi ndi mphamvu za hydraulic ndi makina amatha kupanga chisindikizo cholimba kwambiri, zomwe nthawi zambiri zimatchulidwa ndi injiniya George Cooke mu 1903.Zisindikizo zoyamba zogwiritsidwa ntchito pamalonda zidapangidwa mu 1928 ndipo zidagwiritsidwa ntchito pamapampu apakati ndi ma compressor.
Nthawi yotumiza: Oct-27-2022