Ukuqonda ukuhlukaniswa kwezigaba zama-gantry cranes kulungele ukukhetha nokuthenga ama-cranes. Izinhlobo ezahlukene zama-cranes nazo zinezigaba ezahlukene. Ngezansi, lesi sihloko sizokwethula izici zezinhlobo ezahlukene zama-gantry cranes ngokuningiliziwe ukuze amakhasimende awasebenzise njengereferensi lapho ekhetha ukuthenga i-crane.
Ngokusho kwesakhiwo sohlaka lwe-crane
Ngokusho kokuma kwesakhiwo sefreyimu yomnyango, ingahlukaniswa nge-gantry crane kanye ne-cantilever gantry crane.
Ama-cranes e-Gantryzihlukaniswe:
1. I-gantry crane egcwele: i-beam eyinhloko ayinayo i-overhang, futhi i-trolley ihamba phakathi kwe-span main.
2. I-semi-gantry crane: Ngokuya ngezidingo zokwakha endaweni, ubude bezinto eziphumayo ziyahlukahluka.
I-Cantilever gantry cranes ihlukaniswe yaba:
1. I-Double cantilever gantry crane: enye yezindlela ezivame kakhulu zesakhiwo, ukucindezeleka kwesakhiwo kanye nokusetshenziswa ngempumelelo kwendawo yesayithi kunengqondo.
2. I-Cantilever gantry crane eyodwa: Ngenxa yemikhawulo yesayithi, lesi sakhiwo ngokuvamile siyakhethwa.
Ukwahlukaniswa ngokomumo nohlobo lwe-beam eyinhloko ye-gantry crane:
1. Ukuhlukaniswa okuphelele kwama-single girder gantry cranes
I-single-girder gantry crane inesakhiwo esilula, kulula ukuyikhiqiza nokuyifaka, futhi inesisindo esincane. Iningi lemishayo yalo eyinhloko yizinhlaka zohlaka lwebhokisi likaloliwe. Uma kuqhathaniswa ne-double-girder gantry crane, ukuqina okuphelele kubuthakathaka. Ngakho-ke, lapho ephakamisa isisindo Q≤50 amathani, i-span S≤35m.
I-Single girder gantry craneimilenze yesicabha itholakala ngohlobo lwe-L kanye nohlobo lwe-C. Imodeli emise okwe-L kulula ukuyifaka, inokumelana namandla okuhle, futhi inesisindo esincane, kodwa isikhala sokuphakamisa impahla ngemilenze sincane kakhulu. Imilenze emise okwe-C itshekile noma igobile ukunikeza isikhala esikhulu esivundlile ukuze impahla idlule kahle emilenzeni.
2. Ukuhlukaniswa okuphelele kwama-double main girder gantry cranes
I-double girder gantry cranesabe namandla okuthwala aqinile, ama-spans amakhulu, ukuzinza okuhle okuphelele, nezinhlobonhlobo eziningi, kodwa isisindo sawo sikhulu kune-single-girder gantry cranes enamandla afanayo okuphakamisa, futhi izindleko nazo ziphezulu.
Ngokusho kwezakhiwo eziyinhloko ze-boom, zingahlukaniswa zibe izinhlobo ezimbili: ugongolo lwebhokisi kanye ne-truss. Njengamanje, izakhiwo zohlobo lwebhokisi zivame ukusetshenziswa.
Ukuhlukaniswa ngokuya ngesakhiwo esikhulu se-gantry crane:
1. I-truss girder gantry crane
Isakhiwo esihlanganisiwe sensimbi ye-angle noma i-I-beam inezinzuzo zezindleko eziphansi, isisindo esincane kanye nokumelana nomoya omuhle.
Kodwa-ke, ngenxa yenani elikhulu lamaphoyinti wokushisela, i-truss ngokwayo inamaphutha. I-truss beam nayo inokushiyeka njengokuphambuka okukhulu, ukuqina okuphansi, ukwethembeka okuphansi, nesidingo sokutholwa njalo kwamaphoyinti wokushisela. Ilungele amasayithi anezidingo eziphansi zokuphepha kanye nesisindo esincane sokuphakamisa.
2. I-Box girder gantry crane
Amapuleti ensimbi ahlanganiswe esakhiweni esinebhokisi, esinezici zokuphepha okuphezulu nokuqina okuphezulu. Ngokujwayelekile isetshenziselwa ama-tonnage amakhulu kanye nama-cranes amakhulu we-tonnage gantry. I-beam eyinhloko ithatha isakhiwo se-beam yebhokisi. Imishayo yebhokisi nayo inobubi bezindleko eziphakeme, isisindo esifile, kanye nokungazweli kahle komoya.
3. Ikhekheba lezinyosi ugongolo gantry crane
Ngokuvamile ebizwa ngokuthi "isosceles triangle honeycomb beam", ubuso bokugcina be-honeycomb bungunxantathu, futhi kunezimbobo zekhekheba lezinyosi ezinhlangothini zombili ze-oblique belly, ama-chords aphezulu naphansi. Imishayo yeselula imunca izici zemishayo ye-truss nemishayo yebhokisi, futhi inokuqina okukhulu, ukuchezuka okuncane nokuthembeka okuphezulu kunemishayo ye-truss.
Kodwa-ke, ngenxa yokushiselwa kwamapuleti ensimbi, isisindo sokuzimela kanye nezindleko ziphakeme kancane kunalezo zemishayo ye-truss. Ifanele ukusetshenziswa okuvamile noma izingosi ezithwala kanzima noma izingosi zensimbi. Ngenxa yokuthi lolu hlobo lwesigxobo luwumkhiqizo wokuphathelene, kukhona abakhiqizi abambalwa.
