Iikhreyini zeenqanawa ze-jibziyimfuneko kwizicelo ezahlukeneyo zaselwandle, iinqanawa zokuphakamisa, izixhobo ezinzima kunye nezinye izinto ngokukhuselekileyo nangokufanelekileyo. Ziyilelwe ngokukodwa iimfuno zokusebenza kwimida yamanzi, iidokhi kunye neendawo zeenqanawa. Banikezela ngeenzuzo ezizodwa ekuhambeni, ukulula ukusebenza kunye nokulungelelaniswa, kunceda ukunciphisa ixesha lokuphatha ngelixa uphucula ukhuseleko kunye nokuchaneka.
Iimpawu eziphambili zeenqanawa ze-jib cranes
I-compact, uyilo olugcina indawo.Iikhreyini zeejib zaselwandlengokwesiqhelo zixhonywe kwiziseko ezizinzileyo, iipiers okanye iidokhi ezidadayo, zizenze zilungele iindawo ezinendawo enyiniweyo. Uyilo lwazo lunciphisa umkhondo, luvumela ukusebenza ngokufanelekileyo kwiindawo ezixineneyo ezifana needokhi, iidokhi okanye iindawo zeenqanawa.
Umthamo wokuphakamisa ophezulu. Ngaphandle kolwakhiwo lwazo oluhlangeneyo,ii-cranes zaselwandleziyilelwe ukuphakamisa iintsimbi ezininzi, kunye namandla okuphakamisa ukusuka kwiitoni ezimbalwa ukuya kwishumi leetoni. Olu luhlu luvumela abaqhubi ukuba baphathe iindidi zeenqanawa, ukusuka kwiinqanawa ezincinci zokuzonwabisa ukuya kwiinqanawa ezinkulu zokurhweba, ngendlela elawulwayo kunye nezinzile.
Ukuqina kunye nokumelana nokubola. Ngenxa yokuba ezi crane zisebenza kwiindawo eziselunxwemeni okanye elwandle, zihlala zenziwe ngezinto ezikwaziyo ukugilana njengentsimbi enamava okanye intsimbi engagqwaliyo kwaye zihlala zigqunywe ngengubo yokumelana nemozulu. Ezi zixhobo zithintela i-rust kunye ne-saltwater corrosion, ziqinisekisa ukuthembeka kwexesha elide.
Xa ukhetha iubulala i-jib crane, izinto ezininzi kufuneka ziqwalaselwe ukuhlangabezana neemfuno zokusebenza ezithile:
Umthamo wobunzima kunye nokufikelela: Umthamo omkhulu womthwalo wecrane kunye nokufikelela kufuneka kuhambelane nobukhulu kunye nodidi lwenqanawa okanye isixhobo esiza kuphatha.
Umthombo wamandla: Iikhreyini ezininzi ezibulalayo zisebenza ngombane ukuze zithule, zisebenze ngaphandle kokukhupha, ngelixa abanye banokusebenzisa iinkqubo zehydraulic ukunyusa umthamo wokuphakamisa.
Iinkqubo zolawulo: Ezinye iimodeli zibonelela ngolawulo olukude okanye iinkqubo ezizisebenzelayo ukuququzelela ukuhanjiswa okuchanekileyo. Ezi mpawu zonyusa ukhuseleko kwaye zenza kube lula kubaqhubi ukulawula i-crane, nakwimozulu embi.
Iikhreyini zeenqanawa ze-jibbonelela ngesisombululo esisebenzayo, esiguquguqukayo sokuphakamisa imisebenzi yaselwandle neyedokhi. Ngokuqonda iimpawu zabo, usetyenziso, kunye noqwalaselo loyilo, unokukhetha i-crane eyona ifanele iimfuno zakho zokuphakamisa.
