Drilling head
    1.
    发明授权
    Drilling head 有权
    Bohrkopf

    公开(公告)号:EP2162256B1

    公开(公告)日:2017-04-12

    申请号:EP08780874.7

    申请日:2008-06-20

    IPC分类号: B23B51/00 B23P15/32

    摘要: A drilling head for a tubular shank having an inside diameter and threads may comprise an axial body comprising a duct exiting through a first end; threads adjacent the first end corresponding to the threads on the shank and aligning the duct with the shank inside diameter; a bore from an outer surface of the body to the duct; and two axially extending approximately parallel and offset surfaces adjacent a second end; and an insert affixed between the offset surfaces, the insert comprising: a first face at least partially contacting one offset surface and a second face at least partially contacting the other offset surface; one or more cutting edges adjacent the first face, the second face, or both; and a cutting lip adjacent one or more cutting edges.

    摘要翻译: 用于具有内径和螺纹的管状柄的钻头可以包括轴向主体,其包括通过第一端离开的管道; 与第一端相邻的螺纹对应于柄上的螺纹并将管道与柄内径对准; 从主体的外表面到管道的孔; 以及邻近第二端的两个轴向延伸的近似平行和偏移的表面; 以及插入件,其固定在所述偏移表面之间,所述插入件包括:至少部分地接触一个偏移表面的第一面和至少部分地接触所述另一偏移表面的第二面; 邻近第一面,第二面或两者的一个或多个切割刃; 以及邻近一个或多个切割边缘的切割唇。