Rock drill head
    1.
    发明授权
    Rock drill head 失效
    岩石钻头

    公开(公告)号:US06845827B2

    公开(公告)日:2005-01-25

    申请号:US10318930

    申请日:2002-12-12

    CPC分类号: E21B17/046

    摘要: A drill head for rock drilling comprising cutting edges (1) made of hard material, which is detachably connected axially, over a bearing surface (3), with a drilling shaft (4) with at least one radially projecting driver blade (5a, 5b, 5c) by a bayonet-type connection slot (6a, 6b, 6c), wherein at least one connection slot (6a, 6b, 6c) is present, which forms two axially opposing undercuts (7a, 7b), within which the driver blade (5a, 5b, 5c) has limited axial movement.

    摘要翻译: 1.一种用于岩石钻头的钻头,其特征在于,包括由轴承表面(3)上轴向可拆卸地连接的由硬质材料制成的切削刃(1),钻孔轴(4)具有至少一个径向突出的驱动叶片(5a,5b) ,5c)通过卡口式连接槽(6a,6b,6c),其中存在至少一个连接槽(6a,6b,6c),其形成两个轴向相对的底切(7a,7b),驱动器 叶片(5a,5b,5c)具有有限的轴向运动。