发明名称 |
AN ARRANGEMENT AND A METHOD FOR MONITORING AN AIR FLOW IN A DRILL RIG |
摘要 |
The present invention relates to an arrangement in a rock drill rig 10 comprising an inlet valve 31 arranged upstream a displacement compressor 32 that is used for supplying an air flow 34 to at least one flushing hole 23 in the surface of a drill bit 20. The drill rig 10 further comprising an regulator 35 arranged to regulate the system pressure in the air flow path 34 downstream the compressor and means for detecting an flow of air through the at least one flushing hole 23 in the surface of the drill bit. The detecting means comprises a pressure sensor 36, arranged between the air regulator 35 and the inlet valve 31, adapted to measure the reduced system pressure. |
申请公布号 |
WO2009139825(A3) |
申请公布日期 |
2010.03.18 |
申请号 |
WO2009US02668 |
申请日期 |
2009.04.29 |
申请人 |
ATLAS COPCO ROCK DRILLS AB;ATLAS COPCO DRILLING SOLUTIONS LLC;KRAINER, PER;JIAO, DEYI |
发明人 |
KRAINER, PER;JIAO, DEYI |
分类号 |
E21B21/08 |
主分类号 |
E21B21/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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