Research Article
Impact System Dynamic Characteristics of Hydraulic Rock Drill Based on an Overlapped Reversing Valve
Table 4
Test initial data setting.
| | Number | Parameter name | Setting valve (MPa) | Display mode |
| | 1 | Inflow pressure of impact | 20 | Sensor | | 2 | No-load damping pressure | 3.5 | Sensor | | 3 | Propulsion pressure | 3.7 | Sensor | | 4 | Initial nitrogen-charging pressure of a damping accumulator | 3.5 | Gauge pressure | | 5 | Initial nitrogen-charging pressure of a high-pressure accumulator | 11.5 | Gauge pressure |
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