Earth-boring rotary tools having fixed blades and rolling cutter legs, and methods of forming same

    公开(公告)号:US10132122B2

    公开(公告)日:2018-11-20

    申请号:US15131440

    申请日:2016-04-18

    Abstract: An earth-boring rotary tool includes a tool body, at least one fixed blade associated with the tool body and configured to carry a fixed cutting element, and at least one leg configured to carry a rolling cutter. The tool body has a slot extending longitudinally generally parallel to a longitudinal axis defining an axial center of the tool body. The slot is at least partially defined by a first sidewall, a second sidewall opposing the first sidewall, a third sidewall extending between the first sidewall and the second sidewall, and an axial end wall of the tool body. A portion of the leg is disposed within the slot of the tool body and abuts the first sidewall of the tool body. A wedge is disposed within the slot and pins the leg to the tool body within the slot.

    System and method for leg retention on hybrid bits
    3.
    发明授权
    System and method for leg retention on hybrid bits 有权
    在混合位上保留腿的系统和方法

    公开(公告)号:US09476259B2

    公开(公告)日:2016-10-25

    申请号:US14665403

    申请日:2015-03-23

    CPC classification number: E21B10/62 E21B10/14 E21B10/16 E21B10/20

    Abstract: An earth boring drill bit comprising: one or more legs; a bit body having a blade and a slot for receiving the leg; and one or more wedge between the leg and the slot fixing the leg within the slot. The slot may have two parallel sidewalls with one of the sidewalls forming an acute angle and the other forming an obtuse angle. The wedge may be secured immediately next to the obtuse angled sidewall. The wedge may have two obtuse angled sides. One or more bolts through each wedge may secure both the wedge and the leg to the bit body. One of the obtuse angled sidewalls of the wedge may be secured immediately next to an acute angled side of the leg.

    Abstract translation: 一种钻孔钻头,包括:一个或多个腿; 具有刀片和用于接收腿部的槽的位体; 并且腿和狭缝之间的一个或多个楔将腿固定在狭槽内。 槽可以具有两个平行的侧壁,其中一个侧壁形成锐角,另一个形成钝角。 楔形物可紧固在钝角侧壁旁边。 楔形物可以具有两个钝角成角度的侧面。 通过每个楔块的一个或多个螺栓可以将楔块和腿部固定到钻头体上。 楔形物的钝角侧壁之一可以立即紧固在腿的锐角侧。

    EARTH-BORING ROTARY TOOLS HAVING FIXED BLADES AND ROLLING CUTTER LEGS, AND METHODS OF FORMING SAME
    4.
    发明申请
    EARTH-BORING ROTARY TOOLS HAVING FIXED BLADES AND ROLLING CUTTER LEGS, AND METHODS OF FORMING SAME 审中-公开
    具有固定刀片和滚刀切割机的接地旋转工具及其形成方法

    公开(公告)号:US20160230468A1

    公开(公告)日:2016-08-11

    申请号:US15131440

    申请日:2016-04-18

    CPC classification number: E21B10/14 E21B10/16 E21B10/20 E21B10/62

    Abstract: An earth-boring rotary tool includes a tool body, at least one fixed blade associated with the tool body and configured to carry a fixed cutting element, and at least one leg configured to carry a rolling cutter. The tool body has a slot extending longitudinally generally parallel to a longitudinal axis defining an axial center of the tool body. The slot is at least partially defined by a first sidewall, a second sidewall opposing the first sidewall, a third sidewall extending between the first sidewall and the second sidewall, and an axial end wall of the tool body. A portion of the leg is disposed within the slot of the tool body and abuts the first sidewall of the tool body. A wedge is disposed within the slot and pins the leg to the tool body within the slot.

    Abstract translation: 一种镗孔旋转工具包括工具主体,至少一个与工具主体相关联的固定刀片,并且构造成承载固定的切割元件,以及至少一个脚部,其构造成承载滚动切割器。 工具主体具有纵向大致平行于限定工具主体的轴向中心的纵向轴线延伸的狭槽。 狭槽至少部分地由第一侧壁,与第一侧壁相对的第二侧壁,在第一侧壁和第二侧壁之间延伸的第三侧壁以及工具主体的轴向端壁限定。 腿部的一部分设置在工具主体的槽内并且邻接工具主体的第一侧壁。 楔形物设置在槽内,并将腿部固定在槽内的工具主体上。

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