公开(公告)号：US20160040482A1

公开(公告)日：2016-02-11

申请号：US14778630

申请日：2014-03-07

申请人： SANDVIK INTELLECTUAL PROPERTY AB

发明人： Joona LOIKKANEN ,  Stig-Ake BROLUND

IPC分类号： E21B10/25

CPC分类号： E21B10/25 ,  E21B10/10 ,  E21B2010/225

摘要： A roller cutter intended to be used at a drill head for rotary boring of the front of earth and rock formations, the roller cutter having a centre line and being provided with a hub having rows of crushing members. At least one crushing member has its longitudinal axis at an angle relative to a normal to the centre line. The hub is rotatable in relation to a shaft having shaft spigots. The roller cutter is provided with at least one seal retainer arranged at an axial end of the hub in order to hold a sealing means in position. The hub includes at least one circumferential recess positioned axially inward relative to a radially inward projecting flange in the hub.

摘要翻译： 用于在钻头上使用的用于旋转钻孔的滚子式切割机，该切割机具有中心线，并且设置有具有一排破碎构件的轮毂。 至少一个破碎构件的纵向轴线相对于中心线的法线成一角度。 轮毂可相对于具有轴轴的轴可旋转。 滚轮切割器设置有至少一个密封保持器，其布置在毂的轴向端部处，以便将密封装置保持在适当位置。 轮毂包括相对于轮毂中的径向向内突出的凸缘轴向向内定位的至少一个圆周凹槽。