Girder crane: cov ntsiab lus thiab harateristiki

Nyob rau hauv tag nrho cov spheres ntawm tib neeg kev ua si girder crane yuav siv tau los tsiv hnyav loads. Nws yog ib tug lifting mechanism pov tseg rau Hoists (trolley), uas txav raws tus choj girder. Qhov no hom ntawm machinery yog ib qho ntawm feem ntau. Thaum pib ntawm lub xyoo pua 21st rau hauv ib ncig ntawm lub qub Soviet Union, raws li ntau yam kev kwv yees, txhua xyoo ua 1 mus rau 1.5 txhiab luam nyob rau hauv 17 tshwj xeeb cov nroj tsuag.

General ntaus ntawv

Nyob rau hauv dav dav, lub crane beam qauv muaj beams luv, feem ntau hu ua ib tug choj, thiab ntawm lub kawg txhawb. Cov kab teeb thiab cov kev txhawb no yog ua los nyob rau hauv daim ntawv ntawm ib lub plaub. Hauv lawv mus tusyees faib txhawj xeeb thiab muab stability ntawm lub ntsug phab ntsa ntawm lub aperture yog - steel daim hlau welded diagonally rau lub puab chaw. Crane girder muaj sab sauv thiab sab siv. Lub sab sauv tsam yog ntsia rail khiav, uas khi tau saib ntsoov txog kab teeb. Nws kuj muab cov nres uas txwv kab rov tav zog. Nyob rau sab ib sab ntawm cov kab teeb yog muab me me platform nrog ib tug lag tuav cov kev pab cuam crane. Nyob rau hauv transit beam mounted trolley. Thaum lub sij hawm tsim kho zog raws li qhov tshwj xeeb tsav, tau nyob rau hauv ntau yam schemes.

Drive thiab hoist crane beam

Ib tug crane mechanism rau mus yog ib qho hluav taws xob tsav nrog ib tug cylindrical los yog conical txhawb log. Cylindrical log yog siv nyob rau hauv lub rooj plaub uas lub tsheb thauj mus los ntawm cov khoom yog nqa tawm tsuas yog nyob hauv ib tug ncaj kab. Tapered kabmob girder crane centred nyob rau lub ntsia thiab siv yog paths tau nkhaus rail feem. Lub Actuator tej zaum yuav teeb nyob rau hauv raws li ntau yam qauv schemes. Trolley yog ib tug ncej qauv uas yog txaus siab los ntawm khiav log luv kab teeb. Nws tsim ib tug mechanism Lifting - fais los yog phau ntawv, thiab kuj muaj ib Limiter ua hauj lwm nuv block. Nyob rau hauv lub teeb-duty crane trolley li siv hluav taws xob Hoists, uas yog rigidly fastened mus rau lub bogie ncej.

Hom ntawm beam cranes

Nyob rau hauv lub tsim nta ntawm lub girder cranes yuav pab txhawb, dai thiab Gantry. Tus thawj hom yog ib tug qauv mounted rau cov overground railway khiav - ntsug posts ua raws li cov kev pab txhawb uas yog mounted rail thread. Feem ntau, cov nyiaj them yug girder crane siv nyob rau hauv ib tug qhib qhov chaw rau tsheb thauj mus los ntawm loj thiab hnyav loads. Nyiaj siv ua haujlwm cranes yog siv nyob hauv tsev thiab yog teem mus rau nam teev nyob rau hauv lub tsim ntawm cov kab teeb ntawm lub tsev. Lawv lub ntsiab kom zoo dua yog me me luaj li cas nyob rau hauv qhov siab, thiab muaj peev xwm yuav mounted rau cais chaw khw. Lawv khiav tau muaj ib tug curvilinear zoo.

Gantry designs yog siv heev dua lwm yam rau lub tsheb thauj mus los ntawm multi-tuj loads. Lawv qhia ib tug qauv ntsug kev txhawb (muaj peev xwm ntawm mus nyob rau hauv ib tug kab rov tav dav hlau) thiab cov kab rov tav kab teeb. Lawv tau txais - cargo tuav thiab siv tej hauj lwm.

Girder cranes nrog boom

Ib tug tshwj xeeb qhov chaw nyob rau hauv kev tsim kho site occupies ib tug pej thuam crane nrog girder boom. Nws yog ib tug pa tsim rau nraum chaw thau khoom thiab unloading, los ua ke thiab kev tsim kho kev ua hauj lwm nyob rau ntau lub qhov chaw. Cov boom ntawm lub crane yog xws truss voos, lub los yog square zoo lawm.

Lub boom yog raug rho tawm sab saum toj thiab hauv qab txoj siv. Nyob rau hauv qab lub ntsej muag ua liaj ua teb trolley tsiv ntawm lub Actuator. Nyob rau hauv tej rooj plaub, nws yuav fastened nruj nreem nrog lub beam. Nyob rau hauv cov ntaub ntawv no, lub zog ntawm cov khoom nyob rau hauv cov kab rov tav dav hlau yuav siv sij hawm qhov chaw los tsiv tus boom raws daim ntawv qhia nws tus kheej.

Lub beam yuav positioned horizontally los yog nyob rau lub kaum sab xis ntawm ^txog 30-45. Crane girder nrog lub boom muaj ib tug xov tooj ntawm zoo. Firstly, nws yog ib lub ceev ceev zog ntawm cov khoom nyob rau hauv cov kab rov tav kev taw qhia. Secondly, nws yog ib tug loj voos kheej-kheej pab hauv cheeb tsam. Thaum kawg, tus uas tsis muaj qhov muag tsis pom me ntsis - lub crane yuav tau txais cov khoom, txawm nyob rau hauv lub tam sim ntawd cheeb tsam ntawm cov nyiaj them yug.

Cov yam ntxwv beam cranes

Nyob ntawm seb lub peev xwm crane beam yuav raug muab tso rau cov thawj (mus txog rau 5 m), qhov thib ob (50 m) los yog thib peb (320 tons) pab pawg neeg. Lub winch nrog ib tug hluav taws xob tsav yog siv raws li lub lifting mechanism. Yog hais tias lub beam muaj cov yam ntxwv ntawm cov dej num crane heev, nws yog txawm peem rau nrog ob tug lifting mechanisms: thawj thiab. Ib qho tseem ceeb cov yam ntxwv yog cov dav ntawm lub crane beam luv. Yuav ua li cas yog ntau tshaj - qhov ntau loj heev tsim yog hais tias vim lub qhov ntau ntawm cov dabtsi yog khoov sij hawm ntawd thiab txhawj xeeb sawv nyob rau midspan. Muaj multi-ncua lug, uas yog ntsia ntawm ib tug loj thaj chaw. Lawv yog raws li ncaj qha rau tus xov tooj ntawm beams - nyob rau hauv lub hau thiab nyob rau hauv nruab nrab.

girder crane kev tswj system

Crane tswj feem ntau av. Analog tswj nyob rau hauv lub tam sim ntawd cheeb tsam ntawm lub teb xov tooj, kev cob cog rua ntawm nyob ntawm tej rau lub lifting thiab tuav tswv yim ua. Tej thaj chaw deb - Lwm ntau txoj kev tswj. Paub meej girder crane raug mus rau lub computer, uas, nyob rau hauv lem, tswj los ntawm cov neeg teb xov tooj. Cranes tswj los ntawm lub alarm yog siv nyob rau hauv loj industrial cov chaw. Tsav tsheb, nyob rau hauv lub tsheb tav xis, tswj tag nrho cov txheej txheem ntawm kev thauj mus los. Qhov no crane yog txawm peem rau nrog tswb Pib ntsais koj teeb rau muab lub slinger, thiab ib tug tshwj xeeb mounting platform.