Lub gantry crane, tseem hu ua portal crane, yog ib qho khoom nqa loj nrog lub portal thav duab raws li nws cov qauv kev txhawb nqa.Nws yog dav siv hauv cov chaw nres nkoj, cov chaw thauj khoom, cov chaw tsim khoom loj, thiab cov chaw thauj khoom thauj khoom thauj khoom, thauj khoom, thauj khoom, tuav, thiab stacking loj - ncua, hnyav - cov khoom siv. Nws cov qauv muaj ib tug choj ncej, outriggers, ib tug trolley mus ncig teb chaws mechanism, ib tug hoisting mechanism, thiab ib tug hluav taws xob tswj system. Tus choj ncej spans hla ob lub outriggers thiab txav longitudinally raws hauv av lem, tsim ib lub voj voog ua hauj lwm cheeb tsam, ua kom muaj txiaj ntsig zoo ntsug thiab kab rov tav kev thauj mus los thoob plaws cheeb tsam.
Qhov tseem ceeb tshaj plaws ntawm lub gantry crane yog nws qhov loj thiab siab load-cov kabmob muaj peev xwm. Nws tus choj ncej feem ntau siv lub thawv girder lossis truss beam qauv, welded los yog riveted los ntawm siab -lub zog steel, muaj zoo heev khoov thiab torsional nruj. Nws tuaj yeem tiv taus cov loads ntawm kaum mus rau pua pua tons thiab tswj qis deflection nyob rau hauv tag nrho cov load, kom ntseeg tau tias kev ua haujlwm du. Lub outriggers yog teem rau perpendicular mus rau tus choj ncej, nrog log mounted nyob rau hauv qab, cia cov cuab yeej mus taug kev raws lem nteg rau hauv av. Qhov no ua rau kev hloov pauv hloov pauv mus ntev, yoog raws cov kev xav tau ntawm cov chaw cia khoom loj lossis cov kab ntau lawm.
Lub tshuab hoisting raug tshem tawm hauv qab tus choj ncej, siv lub cev muaj zog, reducer, thiab nruas lossis sprocket los tsav cov hlua hlau los yog nqa cov saw rau ntsug nqa. Lub tshuab hluav taws xob tswj kev sib koom ua ke nrog ntau- tshuab kev sib koom tes thiab kev tiv thaiv kev nyab xeeb, nruab nrog cov kev txwv tsis pub txav mus los, kev txwv kev mus ncig, kev tiv thaiv overload, hluav taws xob thaum muaj xwm ceev-tawm cov khoom siv, thiab cov khoom siv tiv thaiv cua thiab plua plav, ua kom muaj kev nyab xeeb nyob rau hauv cov huab cua nyuaj thiab kev ua haujlwm. High- cov qauv kawg suav nrog qhov sib txawv ntawm qhov ceev ceev tswj thiab programmable logic tswj, ua tiav kev hloov kho du thiab meej qhov chaw ntawm kev nqa thiab khiav nrawm kom ua tau raws li lub sijhawm voj voog ntawm cov khoom siv hluav taws xob thiab cov khoom siv ntse.
Piv rau choj cranes, gantry cranes tsis txuas nrog rau cov qauv sab saud ntawm lub tsev tsim khoom thiab tuaj yeem nruab nws tus kheej hauv qhov qhib lossis ib nrab- qhib ib puag ncig. Lawv yog cov yoog tau rau cov chaw sib txawv thiab yooj yim rau kev xa mus rau thaj chaw qhib xws li chaw nres nkoj, railway freight yards, thiab loj precast tivthaiv cov nroj tsuag. Nws cov qauv tsim kuj ua kom muaj kev sib raug zoo nrog cov khoom tshwj xeeb xws li cov thawv ntim khoom, rub, lossis cov khoom siv hluav taws xob, nthuav dav kev thauj khoom thiab kev thauj khoom muaj peev xwm thiab txhim kho kev ua haujlwm ntau yam.
Nrog rau kev txhim kho ntawm kev tsim khoom ntse thiab kev saib xyuas tej thaj chaw deb, niaj hnub gantry cranes tau maj mam muaj peev xwm los saib xyuas tus mob, nrhiav tau cov ntaub ntawv, thiab ceeb toom ua txhaum thaum ntxov. Lawv tuaj yeem muab lub sijhawm tiag tiag - cov lus tawm tswv yim txog kev ua haujlwm tsis zoo thiab kev noj qab haus huv, txhim kho cov tswv yim kho kom zoo, thiab txo qis kev pheej hmoo ntawm lub sijhawm tsis tau npaj tseg. Nrog nws cov txiaj ntsig tseem ceeb ntawm kev them nqi loj, hnyav- lub luag haujlwm tuav, thiab kev hloov pauv siab, nws tau dhau los ua ib qho tseem ceeb ntawm cov khoom siv hauv kev thauj mus los niaj hnub thiab cov tshuab tsim khoom hnyav, ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev thauj mus los, ua kom muaj kev ua haujlwm txuas ntxiv, thiab txhawb kev txhim kho ntse ntawm kev lag luam.
