Excluder ring for earth-boring bit
    1.
    发明授权
    Excluder ring for earth-boring bit 失效
    排气环用于钻孔钻头

    公开(公告)号:US07708090B2

    公开(公告)日:2010-05-04

    申请号:US11485406

    申请日:2006-07-12

    IPC分类号: E21B10/25

    CPC分类号: E21B10/25

    摘要: An elastomeric seal ring is located between each bearing pin and each cone of an earth-boring bit. An excluder ring or band is imbedded within the inner diameter of the seal ring. A portion of the inner diameter of the seal ring as well as the excluder ring are in dynamic sealing contact with the bearing pin. The excluder ring may be harder and more wear resistant than the seal ring. The excluder ring may have lubricating properties. An outer excluder ring may be located on the outer diameter of the seal ring for engaging the cone to resist rotation.

    摘要翻译: 弹性密封环位于每个支承销和钻孔钻头的每个锥体之间。 排除器环或带嵌入密封圈的内径内。 密封环的内径的一部分以及排出环与轴承销动态密封接触。 排除环可能比密封圈更硬,更耐磨。 排除环可具有润滑性能。 外部排除器环可以位于密封环的外径上,用于接合锥体以抵抗旋转。

    Seal Ring With Auxiliary Ring for Earth-Boring Bit
    2.
    发明申请
    Seal Ring With Auxiliary Ring for Earth-Boring Bit 审中-公开
    带有辅助环的密封环,用于镗孔钻头

    公开(公告)号:US20110024199A1

    公开(公告)日:2011-02-03

    申请号:US12534243

    申请日:2009-08-03

    IPC分类号: E21B10/25

    CPC分类号: E21B10/25

    摘要: An elastomeric seal ring is located between each bearing pin and each cone of an earth-boring bit. An auxiliary ring or band is imbedded within an annular recess formed in the inner diameter of the seal ring. A portion of the inner diameter of the seal ring as well as the auxiliary ring are in dynamic contact with the bearing pin. The auxiliary ring has a geometric feature that enhances radial flexibility but prevents it from sealing. The geometric feature may be a transverse cut, notches in either the inner or outer diameters, or holes extending between the sides of the auxiliary ring. The auxiliary ring has lubricating properties.

    摘要翻译: 弹性密封环位于每个支承销和钻孔钻头的每个锥体之间。 辅助环或带被嵌入形成在密封环的内径中的环形凹部内。 密封环的内径以及辅助环的一部分与轴承销动态接触。 辅助环具有增强径向柔性但防止密封的几何特征。 几何特征可以是横向切口,内径或外径中的凹口,或在辅助环的侧面之间延伸的孔。 辅助环具有润滑性能。

    Excluder ring for earth-boring bit
    3.
    发明申请
    Excluder ring for earth-boring bit 失效
    排气环用于钻孔钻头

    公开(公告)号:US20080011518A1

    公开(公告)日:2008-01-17

    申请号:US11485406

    申请日:2006-07-12

    IPC分类号: E21B10/00

    CPC分类号: E21B10/25

    摘要: An elastomeric seal ring is located between each bearing pin and each cone of an earth-boring bit. An excluder ring or band is imbedded within the inner diameter of the seal ring. A portion of the inner diameter of the seal ring as well as the excluder ring are in dynamic sealing contact with the bearing pin. The excluder ring may be harder and more wear resistant than the seal ring. The excluder ring may have lubricating properties. An outer excluder ring may be located on the outer diameter of the seal ring for engaging the cone to resist rotation.

    摘要翻译: 弹性密封环位于每个支承销和钻孔钻头的每个锥体之间。 排除器环或带嵌入密封圈的内径内。 密封环的内径的一部分以及排出环与轴承销动态密封接触。 排除环可能比密封圈更硬,更耐磨。 排除环可具有润滑性能。 外部排除器环可以位于密封环的外径上,用于接合锥体以抵抗旋转。

    Gage surface scraper
    4.
    发明授权
    Gage surface scraper 失效
    量规表面刮刀

    公开(公告)号:US07066286B2

    公开(公告)日:2006-06-27

    申请号:US10809644

    申请日:2004-03-25

    IPC分类号: E21B10/00

    CPC分类号: E21B10/08

    摘要: A gage scraper cleans mud from the gage surface of a rotary cone of a drill bit. The bit has a body having at least one leg depending therefrom, a bearing pin secured to each leg, and a rotary cutting cone mounted to the bearing pin. The cone has a conical gage surface. The gage scraper mounts on the inside of each leg and protrudes from the leg toward the cone into close proximity with the gage surface.

    摘要翻译: 量具刮刀从钻头的旋转锥体的量规表面清除泥浆。 所述钻头具有至少一个从其悬挂的支脚的主体,固定到每个支腿的支承销以及安装在所述支承销上的旋转切割锥。 锥体具有锥形表面。 量规刮刀安装在每个腿的内侧,并从腿部朝向锥体突出,与计量表面紧密接近。

    Composite metallic elastomeric sealing components for roller cone drill bits
    8.
    发明授权
    Composite metallic elastomeric sealing components for roller cone drill bits 有权
    复合金属弹性密封件用于滚子锥钻头

    公开(公告)号:US08967301B2

    公开(公告)日:2015-03-03

    申请号:US12699175

    申请日:2010-02-03

    IPC分类号: E21B10/25

    CPC分类号: E21B10/25 E21B2010/225

    摘要: An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

    摘要翻译: 地镗头具有一个具有固定轴承销的一个主体,可旋转地安装在轴承销上的锥体,锥体和轴承销之间的密封压盖以及位于密封压盖中的密封组件。 密封组件包括环绕轴承销的环形金属弹簧。 弹簧具有围绕轴承销一圈的几何中心线。 弹簧相对于中心线在径向上弹性变形。 弹性体层位于弹簧的外侧,并被弹簧偏压在密封压盖的表面上。

    Composite Metallic Elastomeric Sealing Components for Roller Cone Drill Bits
    9.
    发明申请
    Composite Metallic Elastomeric Sealing Components for Roller Cone Drill Bits 有权
    复合金属弹性密封件用于滚子钻头

    公开(公告)号:US20110187058A1

    公开(公告)日:2011-08-04

    申请号:US12699175

    申请日:2010-02-03

    IPC分类号: E21B10/25

    CPC分类号: E21B10/25 E21B2010/225

    摘要: An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

    摘要翻译: 地镗头具有一个具有固定轴承销的一个主体,可旋转地安装在轴承销上的锥体,锥体和轴承销之间的密封压盖以及位于密封压盖中的密封组件。 密封组件包括环绕轴承销的环形金属弹簧。 弹簧具有围绕轴承销一圈的几何中心线。 弹簧相对于中心线在径向上弹性变形。 弹性体层位于弹簧的外侧,并被弹簧偏压在密封压盖的表面上。

    System, Method and Apparatus for Composite Seal Gland Insert in Roller Cone Rock Bit
    10.
    发明申请
    System, Method and Apparatus for Composite Seal Gland Insert in Roller Cone Rock Bit 审中-公开
    复合密封压盖球面系统,方法和装置

    公开(公告)号:US20100071960A1

    公开(公告)日:2010-03-25

    申请号:US12565914

    申请日:2009-09-24

    IPC分类号: E21B10/25

    CPC分类号: E21B10/25

    摘要: A composite seal gland insert for a roller cone rock bit is a polymer composite sleeve containing one or more constituents that function to significantly lower the wear of the elastomeric seal ring. A fluid lubricant film also may be used between the elastomer seal and the gland. The outer surface of the insert is profiled to provide a sealing surface against which the elastomer seal runs. The insert is installed over the bearing pin and has a surface that engages the last machined surface of the leg. A static seal, which may comprise an additional elastomeric seal, may be used beneath the gland insert to provide a pressure seal between the insert and the pin. An adhesive also may be used as the pressure seal and also to retain the gland insert in the desired position. In addition, a mechanical anti-rotation device may be used to prevent rotation of the gland insert.

    摘要翻译: 用于滚子锥形钻头的复合密封压盖插入件是含有一个或多个组分的聚合物复合套筒,其用于显着降低弹性体密封环的磨损。 还可以在弹性体密封件和压盖之间使用流体润滑剂膜。 插入件的外表面被成型以提供弹性体密封件运行的密封表面。 插入件安装在轴承销上方并且具有接合腿部的最后加工表面的表面。 可以在压盖插入件下面使用可包括附加弹性体密封件的静态密封件,以在插入件和销之间提供压力密封。 也可以使用粘合剂作为压力密封,并且也可以将压盖插入物保持在期望的位置。 此外,可以使用机械防旋转装置来防止压盖插入件旋转。