Izinto Ezintathu Ezisisiseko ZeKreyini Engaphezulu

An ikreni ephezu komhlaba, eyaziwa ngokuba yi-bridge crane, sisixhobo esibalulekileyo esisetyenziswa kwimveliso, ekwakheni, nakwamanye amashishini. Olu hlobo lwe-crane luyilelwe ukuphakamisa nokuthutha imithwalo enzima kusetyenziswa uthotho lwezinto ezisebenzisanayo ukwenza inkqubo yokuphakamisa ekhuselekileyo nesebenzayo. Kweli nqaku, siza kuxoxa ngezinto ezintathu ezisisiseko ze-overhead crane.

Inxalenye yokuqala yekreyini ephezu komhlaba yibhulorho. Le yibharami ethe tyaba ejikeleza ububanzi bekreyini kwaye ixhasa i-hoist kunye netroli. Ibhulorho idla ngokwenziwa ngentsimbi kwaye ixhaswa kuzo zombini iziphelo ziilori zokugqibela, ezixhotyiswe ngamavili ahamba kwiireyili okanye kwiitrekhi ezifakwe kwisakhiwo sesakhiwo. Ibhulorho yenye yezona zinto zinzima zekreyini kwaye yenzelwe ukumelana nobunzima bomthwalo kunye noxinzelelo lokuhamba.

Icandelo lesibini le-overhead crane yi-hoist. I-hoist yindlela esetyenziselwa ukuphakamisa nokwehlisa umthwalo. Iqhagamshelwe kwitroli kwaye ingahamba ngokuthe tye kubude bebhulorho. I-hoist ibandakanya injini, eqhuba indlela yokuphakamisa, kunye nedrama, ebotshelelwe ngentambo yentsimbi okanye ngentambo yocingo. I-hoist ikwabandakanya ulawulo, olufana namaqhosha okanye ii-levers, ezivumela umqhubi ukuba aqale, ame, kwaye alungise isantya sokuphakamisa kunye necala.

Inxalenye yesithathu yekreyini ephezu kwentloko yitroli. Itroli yindlela ehambisa isinyusi ecaleni kubude bebhulorho. Itroli ibandakanya amavili okanye iiroli ezihamba ecaleni kweflengi esezantsi yebhulorho, kunye neemoto kunye nolawulo oluvumela umqhubi ukuba ahambise umthwalo ngasemva nangaphambili. Itroli ikwaquka isixhobo sokuxhoma okanye esinye isixhobo sokuncamathisela esisetyenziselwa ukuphakamisa nokuthutha umthwalo.

Iikhreyini ezingaphezulu zizixhobo ezintsonkothileyo ezifuna uyilo olucokisekileyo, ukufakelwa, kunye nokusebenza ukuqinisekisa ukhuseleko kunye nokusebenza kakuhle. Izinto ezintathu ezisisiseko zekhreyini ephezulu yibhulorho, i-hoist, kunye netroli, ezisebenzisana ukuphakamisa nokuthutha imithwalo enzima. Ezinye iimpawu kunye nezixhobo zingabandakanywa ukuphucula ukusebenza kunye nokhuseleko.