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 njira zopangira komanso kugwiritsa ntchito mwayi wowonjezereka wogwirizanitsa 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 chimakhala ndi zinthu zoluka ngati zingwe zomwe zimangiriridwa mozungulira tsinde kuti apange chisindikizo. Izi zimapanga chisindikizo cholimba pamene chimalola shaft kusinthasintha. 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 kutayikira kowonjezereka mpaka kulongedza 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 zimatha kusokoneza dongosolo lonselo, zomwe zimapangitsa kuti chombocho chifune kuyika kowuma, kuchotsedwa kwa shaft ndikusintha manja kapena kukonzanso shaft. Potsirizira pake, pali kutaya kwa mphamvu yoyendetsa bwino chifukwa injini imayenera kupanga mphamvu zambiri kuti itembenuzire tsinde kuti ligwirizane ndi kuyika 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 chombo kuti chimalize ntchito yake ndi kubwereranso padoko kuti chikonze. Koma chosindikizira chakumapeto kwamakina chimamangidwira pa izi ndikukulitsa 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 - imodzi yozungulira ndi shaft ndi ina yokhazikika - yoyikidwa 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