Gantry cranesndi mitundu yamakina onyamulira omwe amagwiritsidwa ntchito panja m'mabwalo onyamula katundu, m'malo osungiramo katundu, kunyamula katundu wambiri, ndi ntchito zofananira. Mapangidwe awo achitsulo amafanana ndi chimango chooneka ngati chitseko, chomwe chimatha kuyenda m'mayendedwe apansi, ndi mtengo waukulu wokhala ndi ma cantilevers kumbali zonse ziwiri kuti awonjezere magwiridwe antchito. Chifukwa cha kapangidwe kawo kokhazikika komanso kusinthika kolimba, ma crane a gantry amagwiritsidwa ntchito kwambiri m'madoko, njanji, mafakitale, ndi malo omanga.
Gantry cranes akhoza kugawidwa m'njira zosiyanasiyana:
Mwa kapangidwe:girder imodzi kapena double girder
Ndi cantilever kasinthidwe:cantilever imodzi kapena iwiri cantilever
Ndi mtundu wothandizira:wokwera njanji kapena wotopa
Pokweza chipangizo:mbedza, ndowa yogwira, kapena maginito amagetsi
Double main beam hook gantry cranendi zida zonyamulira zolemetsa, zomwe zimagwiritsidwa ntchito kwambiri pokweza ndi kutsitsa m'madoko, mabwalo onyamula katundu ndi malo ena. Kapangidwe kake kamakhala ndi mizati ikuluikulu iwiri yofananira, zotuluka ndi zokowera kuti apange chimango cha zipata. Mapangidwe awiri-girder amawonjezera mphamvu yonyamula katundu ndi kukhazikika, ndipo ndi yoyenera kwa malo akuluakulu, olemetsa kwambiri. Njoka imatha kukwezedwa ndikutsitsa molunjika komanso mosasinthasintha kunyamula zinthu zolemetsa. Crane ili ndi mawonekedwe achangu kwambiri, chitetezo komanso kusinthika kwamphamvu, ndipo imagwiritsidwa ntchito kwambiri m'makampani, mayendedwe ndi magawo ena.
Malo omwe amagwiritsiridwa ntchito bwino pawiri pawiri mbeza hook gantry crane ayenera kukhala mkati mwa -25ºC ~ + 40ºC, ndipo kutentha kwapakati mkati mwa maola 24 sikudutsa 35ºC. Sikophweka kugwira ntchito m'malo oyaka komanso ophulika kapena malo okhala ndi chinyezi chambiri komanso mpweya wowononga. Lili ndi ntchito zosiyanasiyana m'munda, kunyamula zipangizo, ntchito za fakitale ndi zoyendera.
Pogwira ntchito m'munda, imatha kugwira ntchito m'malo ovuta kwambiri ndi mphamvu zake zokweza komanso mawonekedwe okhazikika. Mwachitsanzo, m’migodi ikuluikulu yotseguka, imatha kunyamula mosavuta zinthu zolemera monga zitsulo.
Pankhani ya zida zogwirira, kaya ndi zitsulo, matabwa kapena zida zopangiratu,gantry cranesimatha kugwira bwino ndipo imatha kusinthidwa kukhala zida zosiyanasiyana zonyamulira kuti zikwaniritse zosowa zosiyanasiyana zonyamula.
Mkati mwa fakitale, ndi chida chachikulu chogwirira ntchito. Kuchokera kukweza zinthu zopangira kupita kumalo opangirako kupita kukusamutsa zinthu zomalizidwa kupita ku nyumba yosungiramo katundu, cholumikizira chachikulu chawiri cholumikizira mbedza chimagwira nawo ntchito yonseyo kuti zitsimikizire kupanga kosalala.
Mu ulalo wa mayendedwe, m'madoko, malo osungiramo zinthu ndi malo ena, ma crane amatha kutsitsa ndikutsitsa katundu pamagalimoto kapena zombo kuti afulumizitse kubweza kwa katundu.
Mawonekedwe ndi Kukweza Magwiridwe a Mitundu Yosiyanasiyana ya Gantry Cranes:
♦ Single Girder Gantry Crane:Single girder gantry craneskukhala ndi dongosolo losavuta, kulemera kwake kochepa, ndi zipangizo zotsika komanso ndalama zosamalira. Ndi abwino kwa malo ang'onoang'ono ndi matani otsika, monga mafakitale, nyumba zosungiramo katundu, kapena madoko ang'onoang'ono, okhala ndi mphamvu yokweza nthawi zambiri kuyambira matani 5 mpaka 20. Chifukwa cha mawonekedwe ake opepuka, kukhazikitsa ndi kusamutsa kumakhala kosavuta, ndipo ntchitoyo imasinthasintha, kuwapangitsa kukhala oyenera kunyamula katundu wopepuka pafupipafupi. Komabe, mphamvu zawo zonyamula katundu ndizochepa, zomwe zimawapangitsa kukhala osayenerera ntchito zolemetsa kapena mosalekeza za matani apamwamba.
♦ Crane ya Double Girder Gantry:Ma cranes a gantry awiriimakhala ndi mawonekedwe ovuta kwambiri, kulemera kwake kwapamwamba, ndi zida zapamwamba komanso ndalama zokonzera, koma zimapereka mphamvu zonyamula katundu. Ndioyenera malo akulu ndi matani okwera kwambiri, monga mphero zachitsulo, mafakitale a simenti, ndi mayadi a malasha, okhala ndi mphamvu yokweza kuyambira matani 20 mpaka 500. Mapangidwe a girder awiri amapereka kukhazikika kwakukulu ndi chitetezo, kuthandizira zipangizo zazikulu zonyamulira ndi ntchito zovuta, zoyenera kugwiritsira ntchito mtunda wautali wa zipangizo zolemera. Chifukwa cha mawonekedwe awo akuluakulu, kukhazikitsa kumatenga nthawi yayitali ndipo zofunikira za malo ndizokwera.
♦ Gantry Crane Yokwera Sitima:Ma crane okwera njanjiamathandizidwa pamayendedwe, kupereka kukhazikika kwapaulendo komanso kusinthasintha. Amagwiritsidwa ntchito kwambiri ngati mayadi onyamula katundu akunja, masheya, ndi kunyamula katundu wambiri m'madoko, malo opangira magetsi, kapena kokwerera njanji, ndi mphamvu zokweza kuchokera pa matani 5 mpaka 200. Mapangidwe opangidwa ndi njanji amaonetsetsa kuti ntchito yoyenda bwino pamtunda wautali, yoyenera kugwiritsira ntchito ma frequency apamwamba komanso ma volumes. Pamafunika kuyika njanji yokhazikika, yomwe imafuna kukonzekera malo, koma mkati mwa njanji, magwiridwe antchito ndi chitetezo ndizokwera.
♦ Crane ya Gantry Yotopa:Ma cranes otopa ndi mphirakudalira matayala kuti akuthandizeni, kumapereka kuyenda kosinthika komanso kudziyimira pawokha kuchokera kumayendedwe okhazikika. Atha kugwira ntchito pamalo osagwirizana kapena osakhalitsa, monga malo omanga, mapulojekiti a mlatho, kapena mayadi osakhalitsa, okhala ndi mphamvu zokweza nthawi zambiri pakati pa matani 10 ndi 50. Mapangidwe otopa ndi mphira amalola kusuntha kosavuta ndi kusintha, koyenera malo omwe ali ndi malo ogwira ntchito omwe amasinthasintha kawirikawiri. Komabe, kuthamanga kwa mayendedwe kumakhala pang'onopang'ono ndipo kukhazikika kumakhala kotsika pang'ono poyerekeza ndi ma cranes okwera njanji, zomwe zimafunikira kugwira ntchito mosamala. Iwo ndi abwino kwa ntchito zazifupi kapena zamitundu yambiri ndikuchepetsa kufunikira kwa zomangamanga zokhazikika.
Mtundu uliwonse wa gantry crane uli ndi mawonekedwe apadera komanso ntchito zake. Kusankha crane yoyenera kumafuna kulingalira za kukweza mphamvu, momwe malo alili, kagwiridwe kake, ndi bajeti. Kusankhidwa koyenera ndi kugwiritsa ntchito ma crane a gantry sikungangowonjezera magwiridwe antchito komanso kuonetsetsa kuti chitetezo ndi moyo wautali wa zida, kupereka phindu lanthawi yayitali kwa mabizinesi.
