公开(公告)号：US20160129506A1

公开(公告)日：2016-05-12

申请号：US14536233

申请日：2014-11-07

申请人： DreBo Werkzeugfabrik GmbH

发明人： Martin Stumpp ,  Alexander Zurn ,  Peter Kehrle ,  Tobias Berg

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2226/75 ,  B23B2251/046 ,  B23B2251/241 ,  B23B2251/245 ,  B23B2251/406 ,  B23B2251/44 ,  B23B2251/446 ,  Y10T408/9097

摘要： A drill with a drill flute (12) includes symmetrical fluted lands (20) helically extend around a core, wherein grooves (18) remain between the fluted lands, said grooves having a width (72) that exceeds the spine thickness or width (24) of the fluted lands (20), and wherein the grooves (18) comprise a convex core reinforcement (22) at the groove bottom thereof. The width (24) of the fluted lands (20) at the drill head side end (16) is smaller than at the shank side end (14) of the drill helix (12), and at least increases in certain areas. The core reinforcement (22) at the drill head side end (16) is more convex than at the shank side end (14), thus has larger radii (40, 42).

摘要翻译： 具有钻凿（12）的钻具包括对称的凹槽平台（20），围绕芯螺旋地延伸，其中凹槽（18）保留在凹槽区域之间，所述凹槽的宽度（72）超过脊柱厚度或宽度（24 ），并且其中所述凹槽（18）在其凹槽底部包括凸形芯加强件（22）。 在钻头侧端部（16）处的带槽纹的平台（20）的宽度（24）比在钻螺旋（12）的柄侧端部（14）处的宽度（24）小，并且在某些区域中至少增加。 在钻头侧端部（16）处的芯部加强件（22）比在柄侧端部（14）处更加凸出，因此具有较大的半径（40,42）。

公开(公告)号：US09879483B2

公开(公告)日：2018-01-30

申请号：US14536179

申请日：2014-11-07

申请人： DreBo Werkzeugfabrik GmbH

发明人： Alexander Zuern ,  Alexis Ickert ,  Martin Stumpp

IPC分类号： E21B10/44 ,  B28D1/14 ,  E21B10/42

CPC分类号： E21B10/445 ,  B23B2226/75 ,  B28D1/146 ,  E21B10/42 ,  Y10T408/909

摘要： A drill head insert or drill head attachment, in particular a drill plate made of hard metal, for a rock drill, includes cutting edges (20, 20a) configured on the feed side which extend from a tip of the drill (18) rearward in a receding manner to an outer face (12, 14) of the drill plate (10). A drill plate (10) is substantially configured in the form of a roof when viewed from the side. A free face (24, 24a) at the cutting edge (20, 20a) abuts against a cutting face (22, 22a) along a substantial part of its extension between the tip of the drill (18) and the outer face (12, 14). A substantially smooth contour of the cutting edge (20, 20a) is interrupted by at least one projection (30, 30a, 30b) which projects beyond the cutting edge (20, 20a) in the feed direction.

公开(公告)号：US09718136B2

公开(公告)日：2017-08-01

申请号：US14536233

申请日：2014-11-07

申请人： DreBo Werkzeugfabrik GmbH

发明人： Martin Stumpp ,  Alexander Zurn ,  Peter Kehrle ,  Tobias Berg

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2226/75 ,  B23B2251/046 ,  B23B2251/241 ,  B23B2251/245 ,  B23B2251/406 ,  B23B2251/44 ,  B23B2251/446 ,  Y10T408/9097

摘要： A drill with a drill flute (12) includes symmetrical fluted lands (20) helically extend around a core, wherein grooves (18) remain between the fluted lands, said grooves having a width (72) that exceeds the spine thickness or width (24) of the fluted lands (20), and wherein the grooves (18) comprise a convex core reinforcement (22) at the groove bottom thereof. The width (24) of the fluted lands (20) at the drill head side end (16) is smaller than at the shank side end (14) of the drill helix (12), and at least increases in certain areas. The core reinforcement (22) at the drill head side end (16) is more convex than at the shank side end (14), thus has larger radii (40, 42).

公开(公告)号：US20160130880A1

公开(公告)日：2016-05-12

申请号：US14536179

申请日：2014-11-07

申请人： DreBo Werkzeugfabrik GmbH

发明人： Alexander Zuern ,  Alexis Ickert ,  Martin Stumpp

IPC分类号： E21B10/42

CPC分类号： E21B10/445 ,  B23B2226/75 ,  B28D1/146 ,  E21B10/42 ,  Y10T408/909

摘要： A drill head insert or drill head attachment, in particular a drill plate made of hard metal, for a rock drill, includes cutting edges (20, 20a) configured on the feed side which extend from a tip of the drill (18) rearward in a receding manner to an outer face (12, 14) of the drill plate (10). A drill plate (10) is substantially configured in the form of a roof when viewed from the side. A free face (24, 24a) at the cutting edge (20, 20a) abuts against a cutting face (22, 22a) along a substantial part of its extension between the tip of the drill (18) and the outer face (12, 14). A substantially smooth contour of the cutting edge (20, 20a) is interrupted by at least one projection (30, 30a, 30b) which projects beyond the cutting edge (20, 20a) in the feed direction.

摘要翻译： 用于凿岩机的钻头插入件或钻头附件，特别是由硬金属制成的钻孔板，包括构造在进料侧的切削刃（20,20a），其从钻头（18）的尖端向后延伸 后退到钻板（10）的外表面（12,14）。 当从侧面观察时，钻板（10）基本上构造成屋顶的形式。 在切削刃（20,20a）处的自由面（24,24a）沿钻头（18）的前端与外表面（12）之间的延伸部分的大部分抵接在切割面（22,22a） 14）。 切削刃（20,20a）的基本上平滑的轮廓被至少一个在进给方向上突出超过切削刃（20,20a）的突起（30,30a，30b）中断。