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1.发明授权Rotary drill bit having an insert with leading and trailing relief portions 失效旋转钻头具有带有前部和后部浮雕部分的插入件
公开(公告)号：US5467837A
公开(公告)日：1995-11-21
申请号：US421283
申请日：1995-04-13
摘要： A roof drill bit having a tool body with a cutting insert brazed thereto. The cutting insert has opposite leading and trailing face portions joined by a side surface which has a leading side relief portion adjacent the leading face portion and a trailing side relief portion adjacent the trailing face portion. The trailing side relief portion, which extends from the leading face portion a distance equal to between about one-third to two-thirds the thickness of the insert, has a greater relief angle that the leading side relief portion, which extends from the trailing face portion a distance equal to between about one-third to about two-thirds the thickness of the insert.
摘要翻译： 一种具有工具主体的屋顶钻头，其具有钎焊到其上的切削刀片。 切削刀片具有由具有与前表面部分相邻的前侧浮雕部分和与后表面部分相邻的后侧浮雕部分的侧表面连接的相对的前后面部分。 从前面部分延伸的距离等于插入件厚度的约三分之一至三分之二的尾边释放部分具有较大的角度，即，从侧面延伸的前侧卸载部分 部分的距离等于插入件的厚度的大约三分之一到三分之二。
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公开(公告)号：US5429199A
公开(公告)日：1995-07-04
申请号：US935956
申请日：1992-08-26
IPC分类号： E21B10/54 , E21B10/56 , E21B10/567 , E21C20060101 , E21B10/42
CPC分类号： E21B10/5673 , E21B10/54
摘要： A cutting bit useful for cutting various earth strata and the cutting insert, which may be made from a polycrystalline diamond composite, for such a cutting bit. The cutting bit has at least one pocket at the axially forward end thereof which receives its corresponding cutting insert. The cutting insert has at least one exposed cutting edge which is of an arcuate shape.
摘要翻译： 用于切割各种地层的切削刀头和可由多晶金刚石复合材料制成的用于这种切削刀头的切削刀片。 切割头在其轴向前端具有至少一个凹口，其接收其相应的切削刀片。 切削刀片具有至少一个具有弧形形状的暴露切削刃。
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公开(公告)号：US06247759B1
公开(公告)日：2001-06-19
申请号：US09328079
申请日：1999-06-08
IPC分类号： E21C35187
CPC分类号： E21C35/187 , E21C2035/1826
摘要： A cutting tool assembly includes a support block having a concealable outer surface portion, first and second bores, and first and second fluid passages. The first fluid passage is in fluid communication with the first bore and the second fluid passage. The second fluid passage has an axis and extends between the concealable outer surface portion and the second bore. Furthermore, the second bore and the second fluid passage are configured such that the axis may be extended through the second bore and beyond the support block without intersecting the support block. The cutting tool assembly also includes a replaceable spray nozzle having a body that extends into the first bore such that the spray nozzle is in fluid communication with the first fluid passage.
摘要翻译： 切割工具组件包括具有可隐藏的外表面部分，第一和第二孔以及第一和第二流体通道的支撑块。 第一流体通道与第一孔和第二流体通道流体连通。 第二流体通道具有轴线并在可隐藏的外表面部分和第二孔之间延伸。 此外，第二孔和第二流体通道被构造成使得轴线可以延伸穿过第二孔并且超过支撑块而不与支撑块相交。 切割工具组件还包括可更换的喷嘴，其具有延伸到第一孔中的主体，使得喷嘴与第一流体通道流体连通。
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公开(公告)号：US5452628A
公开(公告)日：1995-09-26
申请号：US201834
申请日：1994-02-25
摘要： A drill bit for drilling holes in a work surface including a hard wear-resistant insert and a metal body including a top working surface of an irregular surface configuration having a slot for retaining the hard wear-resistant insert. The body having a metal grain structure substantially parallel with the contour of the body. In a preferred embodiment the body is formed by cold-heading.
摘要翻译： 一种用于在工作表面中钻孔的钻头，其包括耐磨耐磨插入件和金属体，所述金属体包括不规则表面构造的顶部工作表面，所述顶部工作表面具有用于保持所述耐磨损耐磨插入物的槽。 主体具有与主体轮廓基本平行的金属颗粒结构。 在优选实施例中，身体通过冷镦形成。
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公开(公告)号：US5184689A
公开(公告)日：1993-02-09
申请号：US665501
申请日：1991-03-06
IPC分类号： E21B10/58
CPC分类号： E21B10/58 , Y10T408/899
摘要： An insert for use in a rotary drill bit wherein first and second top surfaces are opposite a bottom surface, first and second leading faces are opposite first and second trailing faces, and first and second end faces represent outside edges of first and second portions of the insert wherein in one embodiment each of the top surfaces meets its respective leading face to form a cutting edge which forms an oblique angle wherein the cutting edge on the first portion is linearly aligned with the cutting edge on the second portion.
摘要翻译： 一种用于旋转钻头的插入件，其中第一和第二顶表面与底表面相对，第一和第二引导面相对于第一和第二后表面，第一和第二端面表示第一和第二部分的外边缘， 插入件，其中在一个实施例中，每个顶部表面与其相应的前表面相接合以形成形成倾斜角度的切割边缘，其中第一部分上的切割边缘与第二部分上的切割边缘线性对准。
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公开(公告)号：US5927411A
公开(公告)日：1999-07-27
申请号：US840821
申请日：1997-04-16
申请人： Daniel C. Sheirer
发明人： Daniel C. Sheirer
IPC分类号： E21B17/03 , E21B17/046 , F16L37/092 , E21B10/36 , B23B5/22 , E21B17/00 , F16L17/00
CPC分类号： E21B17/03 , E21B17/046 , F16L37/092 , Y10T279/17957
摘要： A rotatable cutting bit-chuck assembly wherein the cutting bit has an axially forward end an axially rearward end with at least one cutting insert at the axially forward end. The cutting bit contains a cavity defined by a cavity wall. The chuck has an axially forward end and an axially rearward end. Upon assembling the cutting bit on the chuck, the cavity of the cutting bit receives the axially forward end of the chuck wherein there is a variable resistance retention member between the chuck and the cavity wall.
摘要翻译： 一种可旋转切削钻头 - 卡盘组件，其中切削钻头具有轴向前端，轴向后端，在轴向前端具有至少一个切削刀片。 切割头包含由腔壁限定的空腔。 卡盘具有轴向前端和轴向后端。 在将切削刀头组装在卡盘上时，切削刀头的腔容纳卡盘的轴向前端，其中卡盘和腔壁之间存在可变的阻力保持构件。
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公开(公告)号：US5400861A
公开(公告)日：1995-03-28
申请号：US238672
申请日：1994-05-05
申请人： Daniel C. Sheirer
发明人： Daniel C. Sheirer
CPC分类号： E21B17/03 , E21B10/38 , E21B10/60 , E21B17/046
摘要： A roof drill bit assembly comprising a roof drill bit and a chuck. The roof bit contains a cavity which opens at the rearward end thereof. Upon assembling the bit and the chuck, the cavity receives the axially forward end of the chuck. A sealing member is between the roof drill bit and the chuck so as to provide a fluid-tight connection between the chuck and the roof bit.
摘要翻译： 一种屋顶钻头组件，包括屋顶钻头和卡盘。 屋顶钻头包括在其后端开口的空腔。 在组装钻头和卡盘时，腔容纳卡盘的轴向前端。 密封构件位于屋顶钻头和卡盘之间，以便在卡盘和车顶钻头之间提供流体密封的连接。
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公开(公告)号：US5172775A
公开(公告)日：1992-12-22
申请号：US665400
申请日：1991-03-06
IPC分类号： E21B10/58
CPC分类号： E21B10/58
摘要： A rotary drill bit insert including an elongated body rotatable about a central axis and having two halves symmetrical about the axis, each symmetrical half having a top surface including a planar front surface contiguous a noncoplanar back relief surface, a bottom surface opposite the top surface, a leading face extending between forwardly facing edges of the front surface and the bottom surface, a trailing face opposite the leading face extending between rearwardly facing edges of the back relief surface and the bottom surface and a distal end surface extending between outwardly distal edges of the top surface, leading face, trailing face, and bottom surface.
摘要翻译： 一种旋转钻头刀片，其包括可围绕中心轴线旋转并具有关于轴线对称的两个半部的细长体，每个对称半部具有顶表面，该顶表面包括邻近非共面后凸面的平面前表面，与顶表面相对的底面， 在前表面和底表面的向前的边缘之间延伸的引导面，与前表面和底表面的向后的边缘之间延伸的引导面相对的后表面，以及在后表面和底表面的向外远端之间延伸的远端表面 顶面，前面，后表面和底面。
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公开(公告)号：US5297643A
公开(公告)日：1994-03-29
申请号：US791755
申请日：1991-11-12
摘要： A drill bit for drilling holes in a work surface including a hard wear-resistant insert and a metal body including a top working surface of an irregular surface configuration having a slot for retaining the hard wear-resistant insert. The body having a metal grain structure substantially parallel with the contour of the body. In a preferred embodiment the body is formed by cold-heading.
摘要翻译： 一种用于在工作表面中钻孔的钻头，其包括耐磨耐磨插入件和金属体，所述金属体包括不规则表面构造的顶部工作表面，所述顶部工作表面具有用于保持所述耐磨损耐磨插入物的槽。 主体具有与主体轮廓基本平行的金属颗粒结构。 在优选实施例中，身体通过冷镦形成。
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公开(公告)号：US4981328A
公开(公告)日：1991-01-01
申请号：US396885
申请日：1989-08-22
IPC分类号： E01C23/12 , E21B10/56 , E21C35/18 , E21C35/183
CPC分类号： E21B10/56 , E21C35/183 , E21C2035/1806 , E21C2035/1816
摘要： A rotatable cutting tool having a tool body with a socket contained in the forward end thereof wherein a hard insert is affixed to the tool body within the socket. The hard insert comprises an integral tip portion and an integral cylindrical flange portion joined to the tip portion by integral mediate portion. An integral boss projects from the bottom surface of the flange portion wherein the boss is of a generally frusto-conical shape which corresponds to the generally frusto-conical volume defined by the socket. A plurality of bumps projects from the bottom surface of the flange portion and the frusto-conical surface of the boss to provide for a braze joint of uniform thickness between the hard insert and the tool body.
摘要翻译： 一种具有工具主体的可旋转切削工具，其具有容纳在其前端的插座，其中硬插入件固定在插座内的工具主体上。 硬质插入件包括整体的顶端部分和通过整体中间部分连接到尖端部分的整体圆柱形凸缘部分。 整体的凸起从凸缘部分的底表面突出，其中凸台具有大致截头圆锥形的形状，其对应于由插座限定的大致截头圆锥体体积。 多个凸起从凸缘部分的底表面和凸起的截头圆锥形表面突出，以在硬质插入件和工具主体之间提供均匀厚度的钎焊接头。
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