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公开(公告)号：US6142249A
公开(公告)日：2000-11-07
申请号：US471218
申请日：1999-12-23
CPC分类号： E21B10/25 , F16J15/344
摘要： An earth-boring bit has a bit body and at least one bearing shaft depending inwardly and downwardly from the bit body. The bearing shaft has a base where it joins the bit body. At least one cutter is mounted for rotation on the bearing shaft and has radial and axial surfaces that cooperate with the base of the bearing shaft to define a bearing seal gland. A bearing is defined between the cutter and bearing shaft. A seal element is disposed in the seal gland. A secondary seal is disposed in the seal gland opposite the cutter axial surface and cooperates with the seal element to at least partially seal the gland against entry of debris from the exterior of the bit.
摘要翻译： 钻头具有一个位体，并且至少一个轴承轴从钻头体向内和向下偏离。 轴承座有一个底座，它连接钻头体。 安装至少一个切割器用于在轴承轴上旋转并且具有径向和轴向表面，其与轴承轴的基部配合以限定轴承密封压盖。 在切割器和轴承轴之间限定了一个轴承。 密封元件设置在密封压盖中。 二次密封件设置在与切割器轴向表面相对的密封压盖中，并与密封元件配合，以至少部分地密封压盖以防止碎屑从钻头的外部进入。
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公开(公告)号：US6026917A
公开(公告)日：2000-02-22
申请号：US993943
申请日：1997-12-18
CPC分类号： E21B10/25 , F16J15/344
摘要： An earth-boring bit has a bit body and at least one bearing shaft depending inwardly and downwardly from the bit body. The bearing shaft has a base where it joins the bit body. At least one cutter is mounted for rotation on the bearing shaft and has radial and axial surfaces that cooperate with the base of the bearing shaft to define a bearing seal gland. A bearing is defined between the cutter and bearing shaft. A seal element is disposed in the seal gland. A secondary seal is disposed in the seal gland opposite the cutter axial surface and cooperates with the seal element to at least partially seal the gland against entry of debris from the exterior of the bit.
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公开(公告)号：US20090014217A1
公开(公告)日：2009-01-15
申请号：US12172364
申请日：2008-07-14
申请人： Anton F. Zahradnik , Terry J. Koltermann , Aaron J. Dick , Don Q. Nguyen , Eric C. Sullivan , Greg Ricks
发明人： Anton F. Zahradnik , Terry J. Koltermann , Aaron J. Dick , Don Q. Nguyen , Eric C. Sullivan , Greg Ricks
IPC分类号： E21B10/00
CPC分类号： E21B10/22 , F16C33/121 , F16C2352/00
摘要： A journal bearing element for use in forming a roller cone bit coupled to a bearing shaft to prevent circumferential sliding. Also included are material compositions of the journal bearing element. A journal bearing element is fixed in place relative to a head section and comprised of dense high purity powdered metal alloys with uniform micro-structure. A preferred material is comprised of a metal made of a carbon content of about 2.3% by weight, chromium of about 14% by weight, vanadium of about 9% by weight, and molybdenum at about 1% by weight.
摘要翻译： 一种轴颈轴承元件，用于形成与轴承轴联接以防止周向滑动的辊锥头。 还包括轴颈轴承元件的材料组成。 轴颈轴承元件相对于头部部分固定在适当位置，并且由具有均匀微观结构的致密高纯度粉末金属合金组成。 优选的材料由碳含量为约2.3重量％，约14重量％的铬，约9重量％的钒和约1重量％的钼制成的金属组成。
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公开(公告)号：US07600589B2
公开(公告)日：2009-10-13
申请号：US11947624
申请日：2007-11-29
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
IPC分类号： E21B10/36
摘要： A shank configuration for rotary drill bits, is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90%. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译： 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄部可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° ％。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。
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5.发明授权Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture 有权旋转钻头柄，旋转钻头如此配备，以及制造方法公开(公告)号：US07472764B2
公开(公告)日：2009-01-06
申请号：US11090932
申请日：2005-03-25
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
IPC分类号： E21B10/36
摘要： A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译： 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。
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公开(公告)号：US07861806B2
公开(公告)日：2011-01-04
申请号：US12566922
申请日：2009-09-25
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
IPC分类号： E21B10/36
摘要： A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to a bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译： 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。
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公开(公告)号：US07594454B2
公开(公告)日：2009-09-29
申请号：US11947613
申请日：2007-11-29
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
摘要： A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译： 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。
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公开(公告)号：US20100012392A1
公开(公告)日：2010-01-21
申请号：US12566922
申请日：2009-09-25
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
IPC分类号： E21B10/42
摘要： A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译： 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。
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9.发明授权Cutting elements comprising sensors, earth-boring tools having such sensors, and associated methods 有权包括传感器的切割元件，具有这种传感器的钻孔工具以及相关联的方法公开(公告)号：US09145741B2
公开(公告)日：2015-09-29
申请号：US13159138
申请日：2011-06-13
IPC分类号： E21B10/567 , E21B10/43
CPC分类号： E21B10/00 , E21B10/43 , E21B10/567 , E21B47/00 , Y10T29/49826
摘要： A cutting element for an earth-boring tool includes an elongated body having a longitudinal axis, a generally planar volume of hard material attached to the elongated body, and a sensor affixed to the elongated body. The sensor may be configured to sense at least one of stress and strain. An earth-boring tool includes a cutting element disposed at least partially within a pocket of a body. Methods of forming cutting elements comprise securing a generally planar volume of hard material to an elongated body, attaching a sensor to the elongated body, and configuring the sensor. Methods of forming earth-boring tools comprise forming a cutting element and securing the cutting element within a recess in a body of the earth-boring tool. Methods of forming wellbores comprise rotating an earth-boring tool comprising a cutting element and measuring at least one of stress and strain.
摘要翻译： 用于钻孔工具的切割元件包括具有纵向轴线的细长主体，附接到细长主体的大体平坦的硬质材料体积，以及固定到细长主体上的传感器。 传感器可以被配置成感测应力和应变中的至少一个。 一种钻孔工具包括至少部分地设置在主体的口袋内的切割元件。 形成切割元件的方法包括将大体平坦的硬质材料体积固定到细长主体，将传感器附接到细长主体，以及配置传感器。 形成钻孔工具的方法包括形成切割元件并将切割元件固定在钻孔工具的主体内的凹部内。 形成井筒的方法包括旋转包括切割元件并且测量应力和应变中的至少一个的钻孔工具。
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公开(公告)号：US08991471B2
公开(公告)日：2015-03-31
申请号：US13314960
申请日：2011-12-08
IPC分类号： B22D13/00 , B22D19/16 , B22D25/02 , C21D6/00 , C21D9/22 , C22C38/10 , C22C38/12 , E21B10/00 , E21B10/36
CPC分类号： E21B10/55 , B22D13/00 , B22D13/02 , B22D13/04 , B22D19/00 , B22D19/06 , B22D19/16 , B22D25/02 , C21D1/18 , C21D6/001 , C21D9/22 , C21D2211/004 , C21D2211/008 , C22C38/08 , C22C38/105 , C22C38/12 , C22C38/14 , E21B10/00 , E21B10/36 , E21B10/42 , Y02P10/122
摘要： A method of forming an earth-boring tool includes introducing metal into a die, rotating the die to generate centrifugal forces on the metal, and cooling the metal in the rotating die. A rotary drill bit may include a unitary, centrifugally cast bit body including an integral shank, at least one blade, and at least one cutting element on the blade. A rotary drill bit or a roller cone may include a first centrifugally cast material and a second centrifugally cast material. Another rotary drill bit includes a bit body comprising a maraging steel alloy. A method of forming a rotary drill bit may include disposing cutting elements on a rotary drill bit comprising maraging steel and aging the rotary drill bit to form at least one intermetallic precipitate phase. Methods of repairing a rotary drill bit include annealing and aging at least a portion of a rotary drill bit.
摘要翻译： 一种形成钻孔工具的方法包括将金属引入模具中，旋转模具以在金属上产生离心力，并且冷却旋转模具中的金属。 旋转钻头可以包括整体的离心铸造钻头体，其包括整体的柄，至少一个刀片和刀片上的至少一个切割元件。 旋转钻头或辊锥可以包括第一离心铸造材料和第二离心铸造材料。 另一个旋转钻头包括一个包含马氏体时效钢合金的钻头体。 形成旋转钻头的方法可以包括将切割元件设置在包括马氏体化钢的旋转钻头上并使旋转钻头老化以形成至少一个金属间沉淀相。 修复旋转钻头的方法包括退火和老化旋转钻头的至少一部分。
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