公开(公告)号：US09359895B2

公开(公告)日：2016-06-07

申请号：US14477699

申请日：2014-09-04

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Joe Fader ,  Hannes Voitic

IPC: E21C35/19 ,  E21C35/197 ,  E21C25/00 ,  E21C35/00

CPC classification number: E21C35/197 ,  E21C25/00 ,  E21C35/00 ,  E21C2035/191

Abstract: A cutting bit retaining assembly for mounting a cutting bit at a cutting machine includes a holder body having a through bore to receive a bit shaft. A retainer acts against the holder body and bit shaft and includes a first and second abutment member that provides a reliable and constant locking force between the body and the shaft.

Abstract translation: 用于在切割机上安装切割钻头的切削刀头保持组件包括具有用于接收钻头轴的通孔的保持器主体。 保持器抵靠保持器主体和钻头轴并且包括第一和第二抵接构件，其在主体和轴之间提供可靠且恒定的锁定力。

公开(公告)号：US09359894B2

公开(公告)日：2016-06-07

申请号：US14490800

申请日：2014-09-19

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Hannes Voitic ,  Joe Fader

IPC: E21C35/18 ,  E21C35/197

CPC classification number: E21C35/18 ,  E21C35/197 ,  E21C2035/1806

Abstract: A cutting bit and bit assembly for mounting at a cutting machine. The bit includes an axially tapered bit body having a recess extending axially within the body. The recess has an innermost region and a mouth region that is generally convex and/or tapered radially outward to abut a corresponding concave or tapered surface of a projection to secure the cutting bit at a holder body. An annular step is positioned within the recess at the mouth region to prevent dust and contaminant fluid or particles from passing axially into the recess.

Abstract translation: 用于安装在切割机上的切割钻头和钻头组件。 钻头包括轴向锥形钻头体，其具有在主体内轴向延伸的凹部。 所述凹部具有最内侧区域和嘴部区域，其通常是凸出的和/或径向向外渐缩的，以抵靠凸起的相应的凹形或锥形表面，以将切割头固定在保持器本体上。 环形台阶位于嘴部区域的凹部内，以防止灰尘和污染物流体或颗粒轴向进入凹槽。