Vertical lifting mechanisms tau categorized los ntawm txoj kev xa mus rau hauv hydraulic thiab mechanical kis tau tus mob, thiab los ntawm cov qauv qauv rau hauv cross- txiab hom thiab lub tes tsho hom. Hla - txiab hom mechanisms siv tus ntoo khaub lig- teeb tsa, hinged linkage thav duab qauv los ua ib tug txiab. Lifting tsab ntawv tsa suab yog ua tiav los ntawm kev hloov lub kaum sab xis ntawm txoj kab sib txuas. Lub kaum sab xis no tuaj yeem hloov pauv los ntawm kev txuas ntxiv thiab thim rov qab ntawm hydraulic lub tog raj kheej piston pas nrig lossis kev thim rov qab thiab tso tawm ntawm cov hlua hlau. Lub tes tsho hom mechanisms muaj xws li truss, lub thawv, los yog cylindrical hom, ua tiav lifting tsab ntawv tsa suab los ntawm extension thiab retraction ntawm ntau lub tes tsho. Txoj kev tsav yuav yog hydraulic kis tau tus mob los yog xaim hlua pulley kis tau tus mob. Hom kev nqa ntsug no muaj qhov txwv kev ua haujlwm siab thiab ua haujlwm me me, tab sis lub platform ua haujlwm loj thiab kev txhawb nqa ruaj khov.
Lub zog-lifting mechanisms tau categorized rau telescopic boom hom, ncaj boom hom, folding boom hom, articulated boom hom, thiab hybrid boom hom, uas yog tam sim no lub mainstream lifting mechanism forms. Telescopic boom hom lifting mechanisms muaj ntau-section, telescopic box-zoo li tus boom, nrog rau ib tug yooj yim boom thiab ib tug telescopic boom. Lub telescopic boom tuaj yeem yog ib lossis ntau ntu, nrog lub tog raj kheej hydraulic ntsia nruab nrab ntawm txhua ntu. Thaum lub tog raj kheej hydraulic ua haujlwm, txhua ntu ntu ntu ntu nce thiab nqis raws cov lus qhia hauv qab lub laub ntawm lub tog raj kheej piston pas nrig, yog li hloov qhov ntev boom. Folding boom lifting mechanisms yog tsim los ntawm ntau lub thawv -zoo li tus boom seem folding ua ke, thiab tuaj yeem muab faib ua upward-folding thiab downward-folding hom. Lub folding thiab unfolding ntawm txhua ntu ntu yog ua tiav los ntawm hydraulic thooj voos kheej kheej ntawm cov ntu. Lawv tuaj yeem ua haujlwm ntawm qhov siab thiab ntau yam; downward- hom folding tuaj yeem ua haujlwm hauv qab theem av. Hybrid boom lifting mechanisms muab cov txiaj ntsig zoo ntawm folding thiab telescopic booms, ua kom qhov siab ua haujlwm thiab ntau yam, thiab muaj kev cuam tshuam muaj zog - muaj peev xwm hla.
