Research Article
Fault Diagnosis Research on Impact System of Hydraulic Rock Drill Based on Internal Mechanism Testing Method
Table 1
Test initial data setting.
| | Number | Parameter | Setting valve (MPa) | Display mode |
| | 1 | Inflow pressure of impact | 20 | Sensor | | 2 | No-load damping pressure | 3.5 | Sensor | | 3 | Load damping pressure | 8 | Sensor | | 4 | Propulsion pressure | 6 | Sensor | | 5 | Initial nitrogen charging pressure of damping accumulator | 3.5 | Gauge pressure | | 6 | Initial nitrogen charging pressure of high pressure accumulator | 11.5 | Gauge pressure |
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