PENGARUH PEMBEBANAN OVERLOAD BUCKET TERHADAP KEKUATAN MATERIAL KOMPONEN ARM PADA EXCAVATOR VOLVO EC700B TIPE CRAWLER
Abstract: Volvo Excavator
EC700B crawler type used in coal mining to remove coal and top soil. The
maximum capacity of the bucket according to the standard Volvo Construction
Equipment is 8.28 tonnes, but the actual experience in the field bucket
overloaded with cargo capacity increased to 12.14 tonnes. This study analyzes
the components of arm strength when holding the bucket on the working
conditions of overload. Materials made of ASTM A36 arm with allowable stress
limit (yielding point) of 290 N / mm2. The results showed the increase in value
of the force and stress on the arm component loading conditions overload at
28-32% of normal loading conditions. The maximum voltage occurs at the bracket
arm hydraulic cylinder that is equal to 150.4 N / mm2. The voltage value is
smaller than the allowable stress of material, so the material at arm component
complies with the standards of eligibility and declared safe.
Penulis: Lia Pongsapan
Kode Jurnal: jptmesindd160454
