ACCUMULATOR AND A BORING MACHINE USING THE SAME CAPABLE OF ABSORBING PULSATING PRESSURE AND INCREASING THE BORING EFFICIENCY OF A HAMMER UNIT

摘要

PURPOSE: An accumulator and a boring machine using the same are provided to fundamentally prevent pulsating pressure from being applied to water and to increase the impact force of water hammer.;CONSTITUTION: A boring machine(1) comprises a main body(2), a lead(3), a head part(4), a drive rod(20), a hammer unit(10), and an accumulator(40). The main body has a driving device like an engine. The lead is installed in the main body. The heat part is guided by the lead and is descended and rotated by the driving device. The drive rod is connected to the head part. The hammer unit is installed in the end of the drive rod and has a bit(11) for performing a boring work. The accumulator is installed between the drive rod and the hammer unit. The accumulator absorbs pulsating pressure applied to fluid in a bored hole and increases the impact force of the hammer unit.;COPYRIGHT KIPO 2013