Kreni yoyambira gantry yopangidwa mwamakonda yomangira mlatho

Kreni yonyamulira girder gantry, makina amphamvu komanso ogwiritsidwa ntchito m'njira zosiyanasiyana, yakhala chida chofunikira kwambiri pamakampani omanga. Cholinga chake chachikulu ndikuthandizira pa ntchito yomanga ndikukhazikitsa milatho, ma viaducts, ndi misewu yokwezeka. Crane iyi imagwira ntchito yofunika kwambiri ponyamula zinthu zolemera zomangidwa, monga ma girders a konkire opangidwa kale, ndikuziyika bwino pamalo ake osankhidwa.

Tsopano, tiyeni tifufuze bwino za kapangidwe kake komwe kamapangitsa kuti crane ya girder gantry crane ikhale yodziwika bwino padziko lonse lapansi pa ntchito yomanga. Pakati pa crane iyi pali chimango cholimba chomwe chimapereka kukhazikika ndi chithandizo panthawi yonyamula. Chimangochi nthawi zambiri chimapangidwa ndi chitsulo chapamwamba kwambiri, chomwe chimatsimikizira kuti chili ndi mphamvu zambiri komanso kulimba. Chimakhala ndi mizati yoyima, ma girders opingasa, ndi zomangira zopingasa, zonse zopangidwa mwaluso kuti zipirire katundu wolemera ndikusunga kukhazikika pansi pa zovuta.

Chimodzi mwa zinthu zodziwika bwino za crane ya girder gantry ndi njira zake zosinthika. Njirazi, zomwe zili mbali zonse ziwiri za crane, zimathandiza kuti zikhale zosavuta kuyenda pamalo omangira. Popeza crane imatha kutambasuka kapena kubwerera m'mbuyo, imatha kusintha malinga ndi mipata yosiyanasiyana ya mlatho, kuonetsetsa kuti ili pamalo abwino kwambiri panthawi yokweza. Kusintha kumeneku ndikofunikira kwambiri makamaka pomanga mapulojekiti ovuta okhala ndi ma geometri osiyanasiyana.

Pofuna kuthandizira ntchito yonyamula, crane imagwiritsa ntchito njira zingapo zonyamulira. Njira yayikulu yonyamulira nthawi zambiri imakhala dongosolo la hydraulic jack, lomwe limapereka mphamvu yofunikira kuti zinthu zolemera zikwere. Ma jack awa amakhala pamalo abwino pambali pa girder yayikulu, zomwe zimathandiza kuti katundu azigawidwa mofanana panthawi yonyamula. Kuphatikiza apo, crane ili ndi njira zothandizira monga zotulutsira ndi zokhazikika, zomwe zimathandizira kukhazikika ndikuchepetsa kugwedezeka kapena kupendekera kulikonse komwe kungachitike panthawi yonyamula.

Chitetezo ndi chofunikira kwambiri pa ntchito iliyonse yomanga, ndipo crane yoyambira girder gantry nayonso ndi yosiyana. Chifukwa chake, ili ndi zinthu zosiyanasiyana zotetezera. Izi zikuphatikizapo ma switch oletsa, mabatani oyimitsa mwadzidzidzi, ndi makina oteteza overload. Njira izi zimatsimikizira kuti crane ikugwira ntchito moyenera momwe imafunikira ndipo imapewa ngozi zilizonse zomwe zingachitike chifukwa cha overload. Kuphatikiza apo, craneyo idapangidwa ndi zida zoletsa kugwedezeka ndi masensa othamanga kwa mphepo kuti athane ndi nyengo yoipa, ndikuwonetsetsanso chitetezo cha ogwira ntchito komanso malo omanga.