Fault Diagnosis Research on Impact System of Hydraulic Rock Drill Based on Internal Mechanism Testing Method

<div>Pressure curves of chamber and integral curves of piston velocity and displacement. FC: front chamber; RC: rear chamber; LVC: left valve chamber; RVC: right valve chamber; IPD: impact piston displacement; IPV: impact piston velocity.</div>

Shock and Vibration

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Figure 6

Figure 6: Fault Diagnosis Research on Impact System of Hydraulic Rock Drill Based on Internal Mechanism Testing Method 