Kumayambiriro kwa zaka za m'ma 1900 - panthawi yomwe zombo zapamadzi zinkayesa koyamba kugwiritsa ntchito injini za dizilo - chinthu china chofunikira chinali kuonekera kumapeto kwa mzere wa propeller shaft.
Mu theka loyamba la zaka za m'ma 1900,pompani chisindikizo chamakinaImeneyi inakhala njira yolumikizirana pakati pa kapangidwe ka shaft mkati mwa chombocho ndi zinthu zomwe zili m'nyanja. Ukadaulo watsopanowu unapereka kusintha kwakukulu pa kudalirika ndi moyo wa munthu poyerekeza ndi mabokosi odzaza ndi zisindikizo za gland zomwe zinali zodziwika bwino pamsika.
Kukula kwa ukadaulo wa makina osindikizira shaft kukupitirirabe lero, makamaka pakukweza kudalirika, kukulitsa nthawi ya zinthu, kuchepetsa mtengo, kupangitsa kuti kuyika kukhale kosavuta komanso kuchepetsa kukonza. Zisindikizo zamakono zimagwiritsa ntchito zipangizo zamakono, kapangidwe ndi njira zopangira komanso kugwiritsa ntchito mwayi wolumikizana kwambiri komanso kupezeka kwa deta kuti zitheke kuyang'anira digito.
PamasoZisindikizo Zamakina
Zisindikizo zamakina za shaftZinali patsogolo kwambiri kuchokera ku ukadaulo womwe kale unkagwiritsidwa ntchito poletsa madzi a m'nyanja kulowa m'chimake mozungulira shaft ya propeller. Bokosi lodzaza kapena gland yodzaza ili ndi chinthu cholukidwa ngati chingwe chomwe chimamangiriridwa mozungulira shaft kuti chipange chisindikizo. Izi zimapangitsa chisindikizo champhamvu pomwe chimalola shaft kuzungulira. Komabe, pali zovuta zingapo zomwe chisindikizo cha makina chimathetsa.
Kukangana komwe kumachitika chifukwa cha shaft kuzungulirana ndi kulongedza kumabweretsa kuwonongeka pakapita nthawi, zomwe zimapangitsa kuti kutayikira kuchuluke mpaka kulongedza kukonzedwe kapena kusinthidwa. Chokwera mtengo kwambiri kuposa kukonza bokosi lodzaza ndi kukonza shaft ya propeller, yomwe imathanso kuwonongeka chifukwa cha kukangana. Pakapita nthawi, kulongedza kungawononge mpata wolowera mu shaft, zomwe pamapeto pake zitha kusokoneza dongosolo lonse la kuyendetsa, zomwe zimapangitsa kuti chotengeracho chifunike kuyika docking youma, kuchotsa shaft ndikusintha malaya kapena kukonzanso shaft. Pomaliza, pali kutayika kwa mphamvu yoyendetsa chifukwa injini imafunika kupanga mphamvu zambiri kuti itembenuze shaft motsutsana ndi kulongedza kwa gland komwe kumamatira, kuwononga mphamvu ndi mafuta. Izi sizosafunikira: kuti mupeze kuchuluka kovomerezeka kwa kutayikira, kulongedza kuyenera kukhala kolimba kwambiri.
Chotsekekacho chimakhalabe njira yosavuta komanso yotetezeka ndipo nthawi zambiri chimapezekabe m'zipinda zambiri zamainjini kuti chigwiritsidwe ntchito. Ngati chotsekeka cha makina chalephera, chingathandize chombo kuti chimalize ntchito yake ndikubwerera ku doko kuti chikonzedwe. Koma chotsekeka cha makinacho chimamangidwa pa izi mwa kuwonjezera kudalirika ndikuchepetsa kutayikira kwakukulu.
Zisindikizo Zoyambirira Zamakina
Kusintha kwa kutseka mozungulira zinthu zozungulira kunabwera ndi kuzindikira kuti kukonza chisindikizo m'mbali mwa shaft - monga momwe zimachitikira polongedza - sikofunikira. Malo awiri - limodzi lozungulira ndi shaft ndi lina lokhazikika - loyikidwa molunjika ku shaft ndikukanikizidwa pamodzi ndi mphamvu zamadzimadzi ndi zamakina zitha kupanga chisindikizo cholimba kwambiri, zomwe nthawi zambiri zimanenedwa kuti ndi injiniya George Cooke mu 1903. Zisindikizo zoyambirira zamakina zomwe zimagwiritsidwa ntchito pamalonda zidapangidwa mu 1928 ndipo zimagwiritsidwa ntchito pa mapampu a centrifugal ndi ma compressor
Nthawi yotumizira: Okutobala-27-2022