Tool for use in system for in situ replacement of cutting means for a ground drill |
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| 申请号 | EP95108815.2 | 申请日 | 1994-06-15 | 公开(公告)号 | EP0678653A3 | 公开(公告)日 | 1996-09-11 |
| 申请人 | Down Hole Technologies Pty. Ltd.; | 发明人 | McLeod, Gavin Thomas; Egan, Matthew Vance; | ||||
| 摘要 | A tool (20) is described for transporting cutting segments (22) to and from a ground drill (12) to enable in situ replacement of the cutting segments (22). The ground drill is provided with seating means (30) for seating the cutting segments (22). The tool has a carrier cradle (176) onto which the segments can be loaded for transport to and from the ground drill (12) and is operable to cause the segments to slide relative to the tool when the tool passes a predetermined position within the ground drill, so that one end (70) of the segments can extend laterally of the tool an the segments engage the seating means (30) for retention in the cutting position. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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