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    Bearing insert sleeve for roller cone bit
    5.
    发明授权
    Bearing insert sleeve for roller cone bit 有权
    滚子锥头轴承插入套筒

    公开(公告)号：US07387177B2

    公开(公告)日：2008-06-17

    申请号：US11582684

    申请日：2006-10-18

    申请人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Don Q. Nguyen ,  Aaron J. Dick ,  Eric Sullivan ,  Scott Shiqiang Shu

    发明人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Don Q. Nguyen ,  Aaron J. Dick ,  Eric Sullivan ,  Scott Shiqiang Shu

    IPC分类号： E21B10/22

    CPC分类号： E21B10/22 ,  E21B10/25

    摘要： An earth boring bit has a bearing pin with a sleeve mounted on it. The sleeve is fixed against rotation but able to float relative to the bearing pin. A cone fits over and forms a bearing surface with the sleeve. The sleeve and bearing pin are configured to have a clearance between them that has a forward portion that progressively decreases in a rearward direction. The clearance progressively decreases in a forward direction from the rearward end of the sleeve. The cone and the sleeve are able to tilt in unison with each other relative to the bearing pin when the bit is loaded.

    摘要翻译： 地镗头具有安装在其上的套筒的轴承销。 套筒固定不能旋转，但能相对于轴承销浮动。 锥体装配并与套筒形成支承​​面。 套筒和支承销构造成在它们之间具有间隙，其具有在向后方向上逐渐减小的前部。 间隙从套筒的后端沿向前方向逐渐减小。 当钻头加载时，锥体和套筒能够相对于轴承销彼此一致倾斜。

    BEARING INSERT SLEEVE FOR ROLLER CONE BIT
    6.
    发明申请
    BEARING INSERT SLEEVE FOR ROLLER CONE BIT 有权
    轴承塞子套筒用于滚子锥头

    公开(公告)号：US20080093128A1

    公开(公告)日：2008-04-24

    申请号：US11582684

    申请日：2006-10-18

    申请人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Don Q. Nguyen ,  Aaron J. Dick ,  Eric Sullivan ,  Scott Shiqiang Shu

    发明人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Don Q. Nguyen ,  Aaron J. Dick ,  Eric Sullivan ,  Scott Shiqiang Shu

    IPC分类号： E21B10/00

    CPC分类号： E21B10/22 ,  E21B10/25

    摘要： An earth boring bit has a bearing pin with a sleeve mounted on it. The sleeve is fixed against rotation but able to float relative to the bearing pin. A cone fits over and forms a bearing surface with the sleeve. The sleeve and bearing pin are configured to have a clearance between them that has a forward portion that progressively decreases in a rearward direction. The clearance progressively decreases in a forward direction from the rearward end of the sleeve. The cone and the sleeve are able to tilt in unison with each other relative to the bearing pin when the bit is loaded.

    摘要翻译： 地镗头具有安装在其上的套筒的轴承销。 套筒固定不能旋转，但能相对于轴承销浮动。 锥体装配并与套筒形成支承​​面。 套筒和支承销构造成在它们之间具有间隙，其具有在向后方向上逐渐减小的前部。 间隙从套筒的后端沿向前方向逐渐减小。 当钻头加载时，锥体和套筒能够相对于轴承销彼此一致倾斜。

    Roller Cone Bit Bearing, and Bearing Materials
    9.
    发明申请
    Roller Cone Bit Bearing, and Bearing Materials 审中-公开
    滚子轴承和轴承材料

    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。