发明名称 |
Auger drill directional control system |
摘要 |
An auger drill directional control system includes a positional transmitter mounted on a drillhead at the front of a pipe, the positional transmitter transmitting directional and pitch signals to a positional receiver disposed above the grade at the desired terminal location of the drillhead; the positional receiver transfers the signal information to the positional processor that detects deviations by the drillhead from the desired course of travel and produces a correction signal to compensate for the deviation; the correction signal is transmitted by a control transmitter and is received by a control receiver disposed on the underground boring machine; the control receiver passes the correction signal to the control processor which converts the correction signal into a correction command that is delivered to an adjustment apparatus operatively connected with the drillhead. The control system thus provides a closed loop control system that controls the drillhead in the vertical and horizontal directions with respect to the pipe and that employs a receiver that can be placed on the ground above grade and can be moved from position to position to allow the drillhead to be directed around obstacles.
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申请公布号 |
US2002020559(A1) |
申请公布日期 |
2002.02.21 |
申请号 |
US20010855363 |
申请日期 |
2001.05.15 |
申请人 |
BARBERA JAMES S.;MILLER RUSSELL J. |
发明人 |
BARBERA JAMES S.;MILLER RUSSELL J. |
分类号 |
E21B7/04;E21B7/06;E21B7/08;(IPC1-7):E21B7/26;E21B44/00 |
主分类号 |
E21B7/04 |
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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