公开(公告)号：US09637982B2

公开(公告)日：2017-05-02

申请号：US14917284

申请日：2014-08-27

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Tomas Sh Jansson ,  Andreas Rindeskar

IPC: E21B17/042 ,  E21B1/00 ,  E21B1/02

CPC classification number: E21B17/0426 ,  E21B1/00 ,  E21B1/02

Abstract: A percussion drilling apparatus is arranged to affect at least one characteristic of a shock wave produced in a drill string. The apparatus includes an elongate energy transmission adaptor having a shock wave modification sleeve configured with a free end and an attachment end projecting radially from an outer surface of the adaptor.

公开(公告)号：US20140299388A1

公开(公告)日：2014-10-09

申请号：US14357267

申请日：2012-10-29

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Andreas Rindeskar ,  John Hammargren

IPC: E21B10/567

CPC classification number: E21B10/5673 ,  E21B10/40

Abstract: A drill bit for rock drilling tools includes a drill bit head having a front surface including a face surface defining a forward-most end of the drill bit head. The face surface has an outer edge, a gauge surrounding the face surface, the gauge having an inner edge, and a transition region that extends in a direction of a longitudinal axis of the drill bit between the outer edge of the face surface and the inner edge of the gauge. An entirety of the face surface from which the cutting surfaces extend is non-flat so that a center of the face surface is axially forward of the outer edge of the face surface. The gauge includes a first gauge surface defining a first angle with the longitudinal axis over a first portion of a circumference of the gauge and a second gauge surface defining a second angle with the longitudinal axis over a second portion of the circumference of the gauge.

Abstract translation: 用于凿岩工具的钻头包括钻头头，该钻头头具有包括限定钻头头的最前端的面表面的前表面。 所述面表面具有外边缘，围绕所述面表面的表面，所述计量器具有内边缘，以及过渡区域，其在所述钻孔的纵向轴线的方向上在所述表面的外边缘与所述内表面之间延伸， 仪表边缘。 切割表面从其延伸的整个表面是非平坦的，使得面表面的中心在轴向朝向面表面的外边缘的前方。 测量计包括第一测量表面，该第一测量表面在测量仪的圆周的第一部分上限定与纵向轴线成第一角度，第二测量表面在该测量计的圆周的第二部分上与纵轴线限定第二角度。

公开(公告)号：US09797202B2

公开(公告)日：2017-10-24

申请号：US14357267

申请日：2012-10-29

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Andreas Rindeskar ,  John Hammargren

IPC: E21B10/567 ,  E21B10/40

CPC classification number: E21B10/5673 ,  E21B10/40

Abstract: A drill bit for rock drilling tools includes a drill bit head having a front surface including a face surface defining a forward-most end of the drill bit head. The face surface has an outer edge, a gauge surrounding the face surface, the gauge having an inner edge, and a transition region that extends in a direction of a longitudinal axis of the drill bit between the outer edge of the face surface and the inner edge of the gauge. An entirety of the face surface from which the cutting surfaces extend is non-flat so that a center of the face surface is axially forward of the outer edge of the face surface. The gauge includes a first gauge surface defining a first angle with the longitudinal axis over a first portion of a circumference of the gauge and a second gauge surface defining a second angle with the longitudinal axis over a second portion of the circumference of the gauge.