Crane pulleys yog ib qho tseem ceeb ntawm kev nqa cov tshuab coj ncaj qha cuam tshuam nrog kev ua haujlwm zoo, kev nyab xeeb thiab kev ntseeg tau ntawm kev rub tawm haujlwm. Hauv qab no yog nws cov yam ntxwv ua kev ua haujlwm tseem ceeb:
Labour-savory nyhuv
Mechanical Advest: Lub Pulell thaiv Shares lub thauj khoom los ntawm ntau hlua, thiab kev sib xyaw ntawm cov rooj txav tuaj yeem txo cov khoom rub tawm yuav tsum tau nqa cov khoom hnyav. Hauv kev tshawb xav, rub tawm lub zog ua haujlwm (F = g / /
Hloov cov kev taw qhia ntawm kev quab yuam
Cov kev ntsuas taag tuaj yeem hloov cov kev taw qhia ntawm lub zog (xws li ntsug loads tau nqa los ntawm kab rov tav trange raws li cov chaw txwv.
Kev tswj ceev thiab sib npaug
Los ntawm nce lossis txo qis ntawm cov pulleys lossis kho cov txheej txheem winding, xws li kev khiav ceev-txuag cov khoom siv thauj khoom lossis zam kev sib luag ntawm ib sab.
Siab thauj khoom muaj peev xwm
Ua los ntawm cov ntaub ntawv siab tshaj plaws (xws li cov txheej txheem hlau, nylon), thiab yog qhov tsim nyog rau kev tsim nyog ib puag ncig.
Efficiency thiab kev sib txhuam ploj
Kev ua tau zoo yog cuam tshuam los ntawm hom bulley cov kabmob (dov cov kabmob efficiency> zawv sib txhuam coeffient ntawm txoj hlua thiab lub pulley. Feem ntau, kev ua tau zoo ntawm ib lub pulley yog 90% -98%, thiab tag nrho cov kev ua tau zoo ntawm cov pulleys./
/2regular lubrication yuav tsum tau txo kev sib txhuam tsis yog.
Cov qauv hloov pauv
Tib lub vs ob npaug: ib leeg pulley blocks yog siv rau ib lub nruas, xws li cov hlua pulley (xws li cov xov tooj cua daj (yooj yim) kom haum rau cov haujlwm sib txawv.
