Tus nuv ntawm tus choj crane yog ib qho ntawm cov txheej txheem tseem ceeb ntawm Lifting khoom, tsuas yog siv rau dai thiab nqa cov khoom hnyav. Nws yog feem ntau yog forged los ntawm high-zog alloy steel thiab muaj lub zog loj thiab hnav tsis kam. Tus qauv ntawm tus khawm suav nrog peb ntu: lub cev nuv, lub caj dab nuv thiab tus nuv tuav. Qee tus hooks kuj tau nruab nrog lub xauv phom kev nyab xeeb los tiv thaiv cov khoom hnyav los ntawm kev poob siab. Raws li kev siv cov cai yuav tsum tau muab faib ua ob hom: Tib tus nuv thiab ob chav nuv, uas haum rau kev ua haujlwm ntawm cov tonnages sib txawv.
Txhawm rau kom muaj kev nyab xeeb ntawm kev ua haujlwm, tus lej yuav tsum ua raws li cov qauv hauv tebchaws lossis kev lag luam (xws li GB / t 10051 "Lifting nuv"). Ua ntej siv, tshuaj xyuas seb cov kab nuv muaj cov kab nrib pleb, deformation los yog kev hnav hnyav lossis ua kom tsis tu ncua. Kev tu txhua hnub suav nrog lubricating kev sib hloov ib feem ntawm lub caj dab nuv, ntxuav cov xeb, cov khib nyiab, thiab zam dhau overloading. Yog tias tus nuv qhib tau pom tias tau ntau dua 15% ntawm thawj qhov loj lossis torsional deformation tshaj 10 °, nws yuav tsum tau hloov tam sim ntawd.
Choj CRANE Hooks yog dav siv hauv cov khoom tuav hauv cov teeb meem, chaw nres nkoj, chaw khaws khoom lag luam thiab lwm qhov chaw. Thaum xaiv tus qauv, koj yuav tsum xav txog qhov ntsuas muaj peev xwm, xws li M4-M6) thiab siv cov ntaub ntawv tawg thiab tiv thaiv corrosion). Rau kev ua haujlwm nquag lossis kev nqa hnyav, nws raug pom zoo kom siv ob chav ob tog lossis ntxiv pulleys kom tawg lub zog. Ib qho ntxiv, cov haujlwm tshwj xeeb (xws li kub thiab txias thiab kub tsawg) yuav tsum tau siv cov khoom siv sib nug kom muaj kev nyab xeeb thiab kav ntev.