发明名称 |
APPARATUS AND METHOD OF LOADING A ROD BOX FOR A HORIZONTAL DIRECTIONAL DRILL |
摘要 |
<p>A biased door member is provided in an external wall of a drill rod supply magazine mounted on a horizontal directional drilling (HDD) machine. The door member swings inwardly from a first position parallel to the external wall to a second position within the distal column. At least one cut-out is formed in the external wall at the bottom of the retaining guides located at the longitudinal ends of the magazine. The cut-out creates a window through which the added drill rod is inserted. In operation, a drill rod is moved through the biased door member and window cut-outs into the distal column. The pocket of a rod transfer mechanism is positioned below the last column, and a rod lifter lowers the added drill rod into the pocket. The rod transfer mechanism then moves the added drill rod into alignment with the drill string.</p> |
申请公布号 |
WO2009009307(A1) |
申请公布日期 |
2009.01.15 |
申请号 |
WO2008US68362 |
申请日期 |
2008.06.26 |
申请人 |
VERMEER MANUFACTURING COMPANY;HARTKE, LOUIS, C. |
发明人 |
HARTKE, LOUIS, C. |
分类号 |
E21B7/04;E21B19/15 |
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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