Gantry cranes raug cais raws li lawv cov tsos thiab qauv. Qhov kev faib ua tiav tshaj plaws ntawm gantry cranes suav nrog kev qhia txog txhua hom gantry cranes. Paub txog kev faib tawm ntawm gantry cranes yog qhov tsim nyog rau kev yuav khoom ntawm cranes. Cov qauv sib txawv ntawm kev lag luam cranes raug cais tawm txawv.
Raws li cov qauv qauv ntawm lub qhov rooj crane, nws tuaj yeem muab faib ua gantry cranes thiab cantilever gantry cranes raws li cov duab thiab cov qauv ntawm lub qhov rooj ncej.
Gantry cranestau muab faib ntxiv rau hauv:
1. Tag nrho cov gantry crane: lub ntsiab nqaj tsis muaj overhang, thiab lub trolley txav nyob rau hauv lub ntsiab span.
2. Semi-gantry crane: Lub outriggers muaj qhov sib txawv qhov siab, uas tuaj yeem txiav txim siab raws li qhov xav tau ntawm kev tsim vaj tsev hauv tsev.
Cantilever gantry cranes tau muab faib ntxiv rau hauv:
1. Ob chav cantilever gantry crane: Cov qauv siv ntau tshaj plaws, qhov kev ntxhov siab ntawm cov qauv thiab kev siv ntawm qhov chaw zoo yog ob qho tib si tsim nyog.
2. Ib leeg cantilever gantry crane: Daim ntawv qauv no feem ntau raug xaiv vim qhov chaw txwv.
Kev faib tawm raws li qhov pom ntawm lub ntsiab nqaj ntawm gantry crane:
1. Kev faib tawm ntawm ib lub ntsiab girder gantry cranes Ib lub ntsiab girder gantry cranes muaj cov qauv yooj yim, yooj yim rau kev tsim thiab nruab, muaj me me loj, thiab lub ntsiab girder feem ntau yog ib qho kev tawm ntawm txoj kab tsheb ciav hlau. Piv nrog rau ob lub ntsiab girder gantry crane, lub zuag qhia tag nrho yog tsis muaj zog. Yog li, daim ntawv no tuaj yeem siv tau thaum lub peev xwm nqa Q≤50t thiab ncua S≤35m. Ib leeg girder gantry crane ob txhais ceg muaj nyob rau hauv L-hom thiab C-hom. L-hom yog ib qho yooj yim los tsim thiab nruab, muaj kev ntxhov siab zoo, thiab muaj qhov loj me. Txawm li cas los xij, qhov chaw rau nqa cov khoom kom dhau los ntawm ob txhais ceg yog qhov me me. C-shaped ob txhais ceg yog tsim nyob rau hauv ib qho inclined los yog nkhaus zoo los tsim ib tug loj lateral qhov chaw kom cov khoom yuav kis tau los ntawm ob txhais ceg smoothly.
2. Kev faib tawm ntawm ob lub ntsiab girder gantry cranes. Ob chav lub ntsiab girder gantry cranes muaj lub peev xwm nqa tau zoo, qhov loj me, kev ruaj ntseg zoo tag nrho, thiab ntau yam, tab sis lawv tus kheej loj dua li ntawm ib lub ntsiab girder gantry cranes nrog tib lub peev xwm nqa. , tus nqi kuj siab dua. Raws li cov qauv sib txawv ntawm lub ntsiab nqaj, nws tuaj yeem muab faib ua ob hom: lub thawv beam thiab truss. Tam sim no, lub thawv-zoo li tus qauv feem ntau yog siv.
Kev faib tawm raws li lub ntsiab nqaj qauv ntawm gantry crane:
1. Lub truss beam yog ib daim ntawv welded los ntawm lub kaum sab xis steel los yog I-beam. Nws muaj qhov zoo ntawm tus nqi qis, lub teeb yuag thiab zoo cua tsis kam. Txawm li cas los xij, vim muaj cov ntsiab lus vuam ntau thiab qhov tsis xws ntawm lub truss nws tus kheej, lub truss beam kuj muaj qhov tsis zoo xws li loj deflection, tsis tshua muaj zog, kuj tsis tshua muaj kev ntseeg siab, thiab yuav tsum tau tshawb xyuas cov ntsiab lus vuam. Nws yog tsim rau cov chaw uas muaj kev nyab xeeb qis dua thiab muaj peev xwm nqa me me.
2. Lub thawv girder yog welded rau hauv lub thawv qauv siv cov hlau phaj, uas muaj cov yam ntxwv ntawm kev nyab xeeb thiab siab tawv. Feem ntau siv rau loj-tonnage thiab ultra-loj-tonnage gantry cranes. Box beams kuj muaj cov yam ntxwv ntawm tus nqi siab, hnyav hnyav, thiab cua tsis zoo.
