发明名称 |
Water treatment pad for drilling tool |
摘要 |
<p>There is provided a water treatment pad for a drilling tool capable of being fixed quickly and firmly. The present invention provides a water treatment pad for a drilling tool, which is installed on a drilling surface of an object to be drilled when a hole is drilled in the object by using the rotating drill tool while machining water is supplied. The water treatment pad includes a substantially cylindrical pad body having a drain in the side surface thereof and mounted in a manner that surrounds the drilling tool, and a cylindrical diffuser ring detachably fixed in the pad body in a manner that surrounds the drilling tool to accelerate a fluid therein and release the fluid to the outside. On the end surface of the diffuser ring which comes into contact with the drilling surface, convex-shaped blades the transverse cross section of which has an airfoil profile tilting in the rotative direction of the drilling tool are arranged in an aligned manner. On a plane defined by the distance between the adjacent blades and the heights of blades, the relationship between the area (S 1 ) on the inner surface side of diffuser ring and the area (S 2 ) on the outer surface side of diffuser ring is S 1 <S 2 .</p> |
申请公布号 |
EP2149440(B1) |
申请公布日期 |
2012.10.31 |
申请号 |
EP20080170286 |
申请日期 |
2008.11.28 |
申请人 |
SHIBUYA COMPANY, LTD. |
发明人 |
KATAGIRI, FUJIO;TAKANO, YOSHIYUKI |
分类号 |
B23Q11/10;B23Q11/00;B28D7/02;E21B21/015 |
主分类号 |
B23Q11/10 |
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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