Hauv cov xwm txheej dab tsi yuav tsum tau nqa cov saw hlau hloov?
Lub tshuab hluav taws xob saw hoist yog tsim ntawm lub cev muaj zog, lub tshuab xa khoom thiab lub log log. Lub tshuab nqa cov saw hluav taws xob hoist adopts Φ 7.1mm thiab .2 11.2mm 80 nto hardening lifting saw kom nws muaj kev nyab xeeb thiab siv tau. Lub zog muaj zog ua kom zoo dua ntawm cov saw hlau tuaj yeem tiv thaiv cov khoom lag luam puas thiab muag muag ntawm cov khoom tseem ceeb, kom tswj tau qhov kev ua tau zoo ntawm txoj saw crane ntev. Hloov kho rau cov saw hlau hluav taws xob hoist:
Yog tias ib qho kis ntawm qhov sib tiv tauj ntawm cov saw hlau tau hnav, thiab kev coj ntawm kev sib txuas ntawm txoj kab uas hla ntawm txoj hlua txuas ntu tshaj li tus qauv txheem, cov saw yuav raug hloov tam sim ntawd.
Feem ntau, txoj saw txuas taub DM = (D1 + D2): 2< =="" 0.9d="" qhov="" nruab="" nrab="" txuas="" loj="" yog="" xam="" los="" ntawm="" ob="" qhov="" tseem="" ceeb="" thiab="" qhov="" ntsuas="" ntawm="" kev="" sib="" hloov="">
Yog hais tias qhov ntev ntawm ib qho ntawm cov saw nqa nce ntxiv tsis tu ncua lossis cuam tshuam rau sab hauv qhov loj ntawm ib qho saw ntau tshaj li 5%, cov saw nqa yuav tsum hloov tam sim ntawd. Yog tias sab hauv qhov sib dhos ntawm txoj saw nqa tau ntau tshaj 2% ntawm qhov ntsuas qhov ntev ntawm cov saw txuas, nws yuav tsum raug hloov tam sim ntawd.
