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公开(公告)号:US07549491B2
公开(公告)日:2009-06-23
申请号:US11796042
申请日:2007-04-25
申请人: Klaus Hoeggerl , Olaf Koch , Thorsten Assel
发明人: Klaus Hoeggerl , Olaf Koch , Thorsten Assel
IPC分类号: E21B10/36
CPC分类号: B23B51/00 , B23B2222/28 , B23B2226/75 , B23B2240/08 , B23B2251/02 , B23B2251/204 , B23B2251/50 , B23K1/0008 , B23K2101/20
摘要: A hard material bit for a rotary-percussion tool (2) includes at least one cutting edge (3), a bottom surface (6) located opposite the at least one cutting edge (3), and at least one attachment surface (8) and at least one free surface (10) both extending transverse to the bottom surface (6) and forming, respectively, a piecewise extending first chamfer (9a) and second chamfer (9b), with the second chamfer (9b) having a width greater than a width of the first chamfer (9a).
摘要翻译: 用于旋转冲击工具(2)的硬质材料钻头包括至少一个切割边缘(3),与至少一个切割边缘(3)相对定位的底部表面(6),以及至少一个附接表面(8) 以及至少一个横向于所述底表面(6)延伸并且分别形成分段延伸的第一倒角(9a)和第二倒角(9b)的自由表面(10),所述第二倒角(9b)具有更大的宽度 比第一倒角(9a)的宽度大。
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公开(公告)号:US20070251733A1
公开(公告)日:2007-11-01
申请号:US11796042
申请日:2007-04-25
申请人: Klaus Hoeggerl , Olaf Koch , Thorsten Assel
发明人: Klaus Hoeggerl , Olaf Koch , Thorsten Assel
IPC分类号: E21B10/36
CPC分类号: B23B51/00 , B23B2222/28 , B23B2226/75 , B23B2240/08 , B23B2251/02 , B23B2251/204 , B23B2251/50 , B23K1/0008 , B23K2101/20
摘要: A hard material bit for a rotary-percussion tool (2) includes at least one cutting edge (3), a bottom surface (6) located opposite the at least one cutting edge (3), and at least one attachment surface (8) and at least one free surface (10) both extending transverse to the bottom surface (6) and forming, respectively, a piecewise extending first chamfer (9a) and second chamfer (9b), with the second chamfer (9b) having a width greater than a width of the first chamfer (9a).
摘要翻译: 用于旋转冲击工具(2)的硬质材料钻头包括至少一个切割边缘(3),与至少一个切割边缘(3)相对定位的底部表面(6),以及至少一个附接表面(8) 以及至少一个横向于所述底表面(6)延伸并且分别形成分段延伸的第一倒角(9a)和第二倒角(9b)的自由表面(10),所述第二倒角(9b)具有 宽度大于第一倒角(9a)的宽度。
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公开(公告)号:US20080149399A1
公开(公告)日:2008-06-26
申请号:US11998639
申请日:2007-11-29
申请人: Olaf Koch , Klaus Hoeggerl
发明人: Olaf Koch , Klaus Hoeggerl
IPC分类号: E21B10/40
CPC分类号: B23B51/00 , B23B2226/75 , B23B2240/08 , B23B2240/11 , B23B2251/02 , B23B2251/14 , B23B2251/204 , B23B2251/50 , B23K1/0008 , B23K31/025 , B23K2101/002
摘要: A rotary-percussion drill, includes a hard material bit (2, 2′) having at least one cutting edge (3, 3′), and a shaft having an end (7, 7′) with an axial base surface (6, 6′) provided with a chamfer (8, 8′) at least on its outer radial rim, the bottom surface (4, 4′) of the bit (3, 3′) which lies opposite the cutting edge (3, 3′), being secured to the base surface (6, 6′) of the shaft end (7, 7′) by brazing alloy in a material-locking manner.
摘要翻译: 旋转冲击钻包括具有至少一个切割边缘(3,3')的硬质材料钻头(2,2')和具有轴向底面(6,7')的端部(7,7')的轴, 至少在其外部径向边缘上设置倒角(8,8'),所述钻头(3,3')的底部表面(3,4')与切割边缘(3,3')相对, )通过以材料锁定方式钎焊合金固定到轴端(7,7')的基面(6,6')上。
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