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    DOWNHOLE TOOL BEARING SYSTEM CONTAINING DIAMOND ENHANCED MATERIALS
    5.
    发明申请
    DOWNHOLE TOOL BEARING SYSTEM CONTAINING DIAMOND ENHANCED MATERIALS 审中-公开
    包含钻石增强材料的井下工具轴承系统

    公开(公告)号：US20090205873A1

    公开(公告)日：2009-08-20

    申请号：US12367787

    申请日：2009-02-09

    申请人： Aaron J. Dick ,  David A. Curry ,  Anton F. Zahradnik ,  Dan E. Scott ,  Terry J. Koltermann ,  Chih Lin ,  Brendan P. Kirwan

    发明人： Aaron J. Dick ,  David A. Curry ,  Anton F. Zahradnik ,  Dan E. Scott ,  Terry J. Koltermann ,  Chih Lin ,  Brendan P. Kirwan

    IPC分类号： E21B10/22

    CPC分类号： E21B10/22

    摘要： Downhole tool bearings are provided with diamond enhanced materials. The diamond enhanced materials comprise diamond grains in a matrix of tungsten or silicon carbide. A brazed diamond grit or diamond particles coated with a reactive braze may be utilized for bearing applications. Bearing rings formed at least in part with diamond enhanced material are installed on at least one of the bearing pin journal, the nose and the cone cavity. The bearing rings may be continuous rings or partial rings and attached to the journal pin or cone cavity. These may include thrust bearings, rollers, roller race, balls and ball races made of diamond enhanced material. These bearing surfaces also are formed at least in part with diamond enhanced material and attached to portions of the journal or cone bearing surfaces.

    摘要翻译： 井下工具轴承配有钻石增强材料。 金刚石增强材料包括在钨或碳化硅的基体中的金刚石晶粒。 用反应性钎焊涂覆的钎焊金刚石砂粒或金刚石颗粒可用于轴承应用。 至少部分形成有金刚石增强材料的轴承环安装在轴承销轴颈，鼻部和锥体腔中的至少一个上。 轴承圈可以是连续的环或部分环，并且连接到轴颈销或锥形腔。 这些可能包括由钻石增强材料制成的推力轴承，滚子，滚子赛，球和球赛。 这些轴承表面也至少部分地由金刚石增强材料形成，并且附接到轴颈或锥形轴承表面的部分。

    Earth-boring bit with improved bearing seal
    7.
    发明授权
    Earth-boring bit with improved bearing seal 有权
    具有改进的轴承密封的钻孔钻头

    公开(公告)号：US6142249A

    公开(公告)日：2000-11-07

    申请号：US471218

    申请日：1999-12-23

    申请人： Anton F. Zahradnik ,  Eric C. Sullivan ,  Chih Lin ,  Terry J. Koltermann ,  Scott R. Schmidt

    发明人： Anton F. Zahradnik ,  Eric C. Sullivan ,  Chih Lin ,  Terry J. Koltermann ,  Scott R. Schmidt

    IPC分类号： E21B10/22 ,  E21B10/25 ,  F16J15/34 ,  F16C33/72

    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。

    Drill bit with a dynamic metal seal
    9.
    发明授权
    Drill bit with a dynamic metal seal 有权
    钻头采用动态金属密封

    公开(公告)号：US09316055B2

    公开(公告)日：2016-04-19

    申请号：US13886911

    申请日：2013-05-03

    申请人： Chih Lin ,  Aaron J. Dick ,  Jon D. Schroder ,  Anton F. Zahradnik ,  Alejandro Flores ,  Robert D. Bradshaw

    发明人： Chih Lin ,  Aaron J. Dick ,  Jon D. Schroder ,  Anton F. Zahradnik ,  Alejandro Flores ,  Robert D. Bradshaw

    IPC分类号： E21B10/25 ,  E21B10/22

    CPC分类号： E21B10/25 ,  E21B10/22 ,  E21B2010/225 ,  Y10T29/49826

    摘要： In one aspect, a drill bit is disclosed that in one embodiment may include a bit body, a rotating cutter on the bit body, and a metallic seal between the bit body and the rotating cutter that includes a first seal member, a second seal member having a first end in sealing contact with the first seal member, a second end fixed relative to the first end and a bias member between the first end and the second end that adjusts the load on the first seal member in response to external load applied on the drill bit.

    摘要翻译： 在一个方面，公开了一种钻头，其在一个实施例中可以包括钻头体，钻头体上的旋转切割器以及钻头体和旋转切割器之间的金属密封件，其包括第一密封构件，第二密封构件 具有与所述第一密封构件密封接触的第一端，相对于所述第一端固定的第二端和在所述第一端和所述第二端之间的偏置构件，其响应于施加在所述第一密封构件上的外部负载来调节所述第一密封构件上的载荷 钻头。

    Elastomer Material for High Temperature Roller Cone Bits
    10.
    发明申请
    Elastomer Material for High Temperature Roller Cone Bits 审中-公开
    高温滚筒钻头用弹性体材料

    公开(公告)号：US20080257610A1

    公开(公告)日：2008-10-23

    申请号：US12104891

    申请日：2008-04-17

    申请人： Terry J. Koltermann ,  Aaron J. Dick ,  Chih Lin

    发明人： Terry J. Koltermann ,  Aaron J. Dick ,  Chih Lin

    IPC分类号： E21B10/25

    CPC分类号： E21B10/25

    摘要： An earth boring bit has a bit body with at least one bearing pin. A cone is rotatably mounted on the bearing pin. A seal assembly is located between the cone and the bearing pin, the seal assembly having at least one flexible seal member. A flexible pressure compensating diaphragm is mounted in the body. The diaphragm has one side adapted to be exposed to borehole fluids and another side in contact with lubricant contained in bearing spaces between the cone and the bearing pin. The flexible seal member and the diaphragm are formed of a fluorinated elastomer. The elastomer is either a perfluoroelastomer (FFKM) or a fluoroelastomer (FKM).

    摘要翻译： 地镗头具有至少一个轴承销的位体。 锥体可旋转地安装在轴承销上。 密封组件位于锥体和支承销之间，密封组件具有至少一个柔性密封构件。 柔性压力补偿膜片安装在主体内。 隔膜具有适于暴露于井眼流体的一侧，另一侧与锥体和轴承销之间的轴承空间中包含的润滑剂接触。 柔性密封构件和隔膜由氟化弹性体形成。 弹性体是全氟弹性体（FFKM）或氟弹性体（FKM）。