| 发明名称 |
DYNAMICALLY BALANCED DRILLING TOOLS |
| 摘要 |
The invention relates to eccentric-activated roller and milling drilling tools with separate drive for the high-speed eccentric and a slow-running sleeve with adjustable counterweights in the interior of the sleeve for the dynamic balancing of a radially striking sleeve with roller or milling drilling tools. …<IMAGE>… |
| 申请公布号 |
ZA9102567(B) |
申请公布日期 |
1992.06.24 |
| 申请号 |
ZA19910002567 |
申请日期 |
1991.04.08 |
| 申请人 |
HANNELORE BECHEM |
发明人 |
ULRICH BECHEM;PHILLIP BECHEM;KLAUS BECHEM;DIETER LENZEN |
| 分类号 |
B23B47/04;B23Q5/04;B23Q11/00;B28D1/18;E21B4/00;E21B7/24;E21B10/08 |
主分类号 |
B23B47/04 |
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