Ibhanti kabiningaphezuluiikhreyiniziyilelwe ukuphakamisa ukuphatha izinto ezinzima ezingaphezu kweetoni ezingama-20. Ngoko ke, i-double girderngaphezuluIikhreyini nazo zinokubizwa ngokuba ziikhreyini zebhulorho enzima. Iikhreyini eziphezu kwentloko ezimbini zegirder zinokuthi ziyilwe kwiindlela ezahlukeneyo zokucwangcisa i-crane ephezulu, kubandakanywa iitroli zokunyusela kunye neefestile ezivulekileyo, kunye neentlobo ezahlukeneyo zokuncamathela kwi-crane kunye nezixhobo zokuphakamisa ngaphantsi kwe-huku ezifana nokubamba, iintambo, imagnethi, iikhreyini, njl. izixhobo ezinemiqadi, i-C-shaped hook okanye ezinye iindlela ezisetyenziselwa ukuphatha izinto ezinzima, ezineempawu zokhuseleko oluphezulu, ukuthembeka okuphezulu kunye nokuqina.
Umthamo womthwalo udla ngokuba sesona sizathu siphambili sokukhetha akabiniumqadi I-crane ephezulu. Iikhreyini eziphindwe kabini zegirder ziindleko kunye nendawo Ukonga isisombululo ukuba imithwalo engaphezulu kweetoni ezili-15 kufuneka inyuswe kumjikelo ongaguqukiyo womsebenzi.
Ukuphakama hook ephuculweyo. Kabiniibhulorho yomqadi iicranes zibonisa itroli ehamba phezu kwebhulorho, ngaloo ndlela inyusa ukuphakama kwehuku. Oku kwenza ukuba umqhubi aphakamise izinto ezinde nezinde kunye nemathiriyeli ngaphakathi kwendawo yokusebenza xa kuthelekiswa necrane enye yegirder ene underzixhonyiwe itroli kunye ne-hoist.
Kukho iihoist ezincedisayo kumqadi ngamnye. Iikrane ezongezelelweyo zingongezwa kwi-girder enye yokongeza amanqaku amaninzi okunyusa kwi-crane ephezulu. Ezi cranes zinokujikelezana kuba azikho kumqadi omnye.
Ukuwela imigama emide.IIitoni ezingama-20 ngaphezulu kwekhreyiniinokuhamba imigama emide ngenxa yokuba uyilo lwe-parallel girder lunamandla amakhulu ngokubanzi kunoyilo lwebhanti enye.
Ukusebenza ngamandla. Ngokukodwa ukusebenza okuphezulu kubulela uyilo lwe-double girder kwizantya eziphezulu ezinde kunye nokunqumla. Ngokukodwa umphakamo ophakamileyo ophakamileyo, njengoko ihuku yomthwalo inokunyuswa phakathi kweebhanti ezimbini zecrane.
OkuIitoni ezingama-20 ngaphezulu kwekhreyiniiya kuphatha ngokulula imithwalo enzima kunye nobunzima nokuba bunzima kunoko20 iitoni. Akunjalo kuphela, isebenza ngokufanelekileyo nakwisantya esiphezulu.Sine-double girder overhead cranes ezikhoyo ngobukhulu obuhlukeneyo kunye neenkcukacha eziza kuhambelana nenjongo yakho ngokufanelekileyo nangempumelelo.
