Toni 3 ~ toni 32
4.5m ~ 20m
3m ~ 18m cyangwa gutunganya
A3 ~ A5
Ubwoko bwa BMH igice cya gantry track crane hamwe no kuzamura amashanyarazi gifite imiterere yihariye kandi irashobora gukoreshwa mumahugurwa yinganda hamwe n’ahantu hubakwa hanze hamwe nibidukikije bidasanzwe hamwe nibisabwa bidasanzwe byakazi. Ubwoko bwa BMH igice cya portal porte ni kimwe cya kabiri cyumurongo wa porte hamwe nu kuzamura amashanyarazi nkuburyo bwo guterura. Nibintu bito kandi biciriritse hamwe na gari ya moshi. Ukuguru kwa kimwe cya kabiri cya porte ifite itandukaniro ryuburebure, bushobora kugenwa ukurikije ibyangombwa byubwubatsi bwa site ikoreshwa. Impera yacyo ya nyuma igenda kumurongo umwe, mugihe urumuri rwanyuma kurundi ruhande rugenda hasi. Ugereranije n'amashanyarazi imwe-yamashanyarazi, ikiza ishoramari n'umwanya. Ugereranije n'amashanyarazi azamura gantry crane, irashobora kuzigama umusaruro kandi ikazigama mu buryo butaziguye ikiguzi cyumwanya mugihe kirekire. Kubwibyo, ikoreshwa kenshi mubikorwa bigezweho.
Imiterere yicyuma cyimashini yose igizwe nigiti kinini, outrigger, crossbeam yo hejuru, crossbeam yo hepfo, ihuza urumuri, urwego rwurwego nibindi bice. Hejuru ya crossbeam hamwe na crossbeam yo hepfo ni gusudira ibiti U-bikozwe mubyuma. Kwishyiriraho neza kwerekanwa guhagaritse kandi gutambitse kwiziga hamwe nuburyo bwo gukora crane byemezwa nogukora no gusudira kumutwe wo hepfo. Outrigger irasudwa muburyo bwububiko. Guhangayikishwa biroroshye kandi birasobanutse, kandi isura ni nziza kandi itanga. Ibisohoka, imirishyo nyamukuru hamwe nibiti bibiri nyamukuru bihujwe na bolts kugirango byorohe gusenywa no guterana. Ibisohoka, ibiti byo hejuru, imirishyo nyamukuru hamwe n’ibiti byo hasi muri rusange bigomba kubanza guteranyirizwa mu ruganda no gushyirwaho ikimenyetso kugira ngo byoroherezwe guterana neza kandi bigenzure neza niba ari inteko ishinga amategeko yanyuma. Urwego nimpeta irinda gusudira hamwe nicyuma gifatika, ibyuma bizengurutse hamwe nicyuma. Bahujwe nicyuma gifatanye gusudira ku kuguru na bolts, birinda gusudira ku rubuga kandi byoroshye gusenya no guterana. Ukurikije ibidukikije bikenewe, mugihe guhitamo amashanyarazi asanzwe yumuriro umwe-beam cyangwa amashanyarazi ya gantry crane atari byiza, crane ya gantry nayo ni igisubizo cyiza.
Niba ufite ikibazo, urahawe ikaze guhamagara no gusiga ubutumwa Dutegereje amakuru yawe amasaha 24.
Baza nonaha