Vim tias cov qauv ntawm lub crane yog qhov nyuaj ntau thiab loj heev ntawm cov kev sib tsoo crane, nws yuav ua rau muaj kev hem thawj loj heev rau cov neeg ua haujlwm. Yog li ntawd, kom ntseeg tau qhov kev nyab xeeb ntawm kev nqa cov tshuab tau dhau los ua qhov tseem ceeb tshaj plaws ntawm cov khoom siv khoom siv tshwj xeeb. Kab lus no yuav tshawb xyuas cov kev phom sij zais ntawm kev nyab xeeb hauv nws rau txhua tus neeg kom zam rau kev txaus ntshai raws sijhawm.
Ua ntej, cov kev nyab xeeb zais kev phom sij thiab qhov tsis xws luag muaj nyob rau hauv lub lift machinery nws tus kheej. Vim tias cov chav ua haujlwm tsim kev tsim kho tsis them rau kev ua haujlwm ntawm kev nqa cov tshuab, qhov no tau ua rau tsis muaj kev tswj hwm thiab kev tswj hwm ntawm kev nqa cov tshuab nqa. Ib qho ntxiv, qhov teeb meem ntawm tsis ua tiav ntawm kev nqa cov tshuab nqa. Xws li qhov teeb meem ntawm cov roj xau hauv lub tshuab txo qis, kev co lossis suab nrov lossis suab nrov thaum siv thaum siv. Nyob rau hauv lub sijhawm ntev, nws yuav inevitably coj kev nyab xeeb kev nyab xeeb. Tus yuam sij rau cov neeg tsav tsheb tsim nyog no yog tias tus neeg ua haujlwm tsim kho tsis tau txaus rau nqa tshuab txaus thiab tsis tau tsim txoj kev nqa khoom zoo tshaj plaws.
Thib ob, kev nyab xeeb kev nyab xeeb thiab tsis xws luag ntawm cov khoom siv hluav taws xob ntawm kev nqa tshuab. Cheebtsam hluav taws xob yog qhov tseem ceeb ntawm cov khoom siv hluav taws xob. Txawm li cas los xij, tam sim no, ntau cov teeb meem tiv thaiv tseem ceeb thaum lub sij hawm kev tsim kho cov khoom siv hluav taws xob tau raug mob hnyav, uas nyeg tau ua rau muaj kev nyab xeeb ntawm kev nyab xeeb.
Thib peb, kev nyab xeeb kev nyab xeeb thiab qhov tsis xws luag ntawm qhov tseem ceeb ntawm kev nqa tshuab. Qhov tseem ceeb ntawm kev nqa cov tshuab nqa tau muab faib ua peb hom: ib qho yog tus nuv, lwm tus yog cov hlua hlau, thiab thaum kawg lub pulley. Peb feem peb muaj qhov cuam tshuam tseem ceeb ntawm kev nyab xeeb thiab ruaj khov ua haujlwm ntawm kev nqa tshuab. Lub luag haujlwm tseem ceeb ntawm tus nuv yog mus dai cov khoom hnyav. Yog li ntawd, thaum lub sijhawm ntev ntawm kev siv, tus nuv yog nquag heev rau kev qaug zog tawg. Thiab ib zaug tus nuv yog nyob ntawm xub pwg nrog cov khoom loj ntawm cov khoom hnyav, yuav muaj teeb meem kev nyab xeeb loj loj loj. Cov hlua xo yog lwm qhov ntawm lub tshuab nqa uas nqa cov khoom hnyav. Thiab vim yog kev siv ntev ntev thiab hnav, nws yog khi kom muaj teeb meem deformation, thiab cov xwm txheej yooj yim tshwm sim hauv cov khoom rog dhau. Tib yam yog qhov tseeb ntawm pulleys. Vim yog ntev -term zawv zawg, lub pulley yuav inevitably tshwm sim hauv kev tawg thiab kev puas tsuaj. Yog tias qhov tsis xws luag tshwm sim thaum kev tsim kho, kev nyab xeeb loj yuav tsis muaj tshwm sim.
Plaub, cov teeb meem uas twb muaj lawm nyob rau hauv kev siv kev nqa tshuab. Tus neeg teb xov tooj ntawm lub tshuab nqa tsis paub txog kev nyab xeeb kev ua haujlwm ntsig txog kev paub txog lub crane. Kev ua haujlwm tsis ncaj ncees lawm ntawm kev nqa tshuab yuav ua rau kev puas tsuaj loj rau kev nqa cov tshuab nqa khoom thiab cov neeg ua haujlwm lawv tus kheej.
