Crane Yothamanga Pamwamba pa Girder Yokha

Kreni imodzi yoyendera pamwamba pa girder ndi mtundu wa kreni yomwe imagwiritsidwa ntchito posamalira zinthu m'mafakitale ndi zomangamanga. Imakhala ndi girder imodzi, yomwe ndi mtanda wopingasa womwe umathandizidwa kumapeto kulikonse ndi galimoto yomaliza. Kreniyo imayenda pa njanji zomwe zimayikidwa pa nyumbayo kapena pa nyumba yochirikiza yokhazikika.

Kreni imodzi yonyamula katundu pamwamba pa girder ndi njira yabwino komanso yotsika mtengo yonyamulira ndi kunyamula katundu wolemera. Nthawi zambiri imagwiritsidwa ntchito m'malo omwe katunduyo si wolemera kwambiri kapena kutalika kwake si kwakukulu kwambiri. Zitsanzo za ntchito zotere ndi monga kupanga, kusunga zinthu, ndi kumanga.

Ubwino wa crane imodzi yoyendetsa pamwamba pa girder ndi wochuluka. Choyamba, ili ndi zofunikira zochepa zochotsera pamwamba poyerekeza ndi crane ziwiri zoyendetsa pamwamba, zomwe zikutanthauza kuti ndalama zomangira zimakhala zochepa. Kachiwiri, ndi yosavuta kuyiyika ndi kuyisamalira chifukwa cha kusavuta kwake. Kachitatu, ndi njira yotsika mtengo yonyamula ndi kusuntha zinthu zopepuka mpaka zochepa. Pomaliza, imapereka mulingo wabwino kwambiri wowongolera ndi kulondola, zomwe zimapangitsa kuti ikhale yoyenera kunyamula ndi kugwiritsa ntchito zipangizo molondola.

Kreni imodzi yoyendetsera pamwamba pa girder ikhoza kusinthidwa kuti ikwaniritse zofunikira zinazake. Itha kupangidwira kugwiritsidwa ntchito mkati kapena panja, ndipo ikhoza kukhala ndi zinthu zosiyanasiyana monga zokweza, ma trolley, ndi makina owongolera. Chokwezacho chingasinthidwenso kuti chigwirizane ndi mphamvu zosiyanasiyana zonyamula katundu komanso liwiro lonyamula katundu.

Mwachidule, crane ya single girder top running overhead ndi njira yothandiza komanso yotsika mtengo yonyamulira zinthu zolemera komanso yosamalira zipangizo. Ndi yosinthika kwambiri ndipo ingapangidwe kuti ikwaniritse zofunikira zinazake. Chifukwa chake, yakhala chisankho chodziwika bwino m'mafakitale ambiri ndi malo omanga.