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    DRILL BIT ROLLING ELEMENT WITH RETAINING RING
    1.
    发明申请
    DRILL BIT ROLLING ELEMENT WITH RETAINING RING 审中-公开

    公开(公告)号：US20180258708A1

    公开(公告)日：2018-09-13

    申请号：US15981225

    申请日：2018-05-16

    Applicant: Smith International, Inc.

    Inventor： Yuri Y. Burhan ,  Jibin Shi ,  Chen Chen ,  Youhe Zhang

    IPC: E21B10/567 ,  E21B10/42 ,  E21B10/62 ,  E21B10/627

    CPC classification number: E21B10/567 ,  E21B10/42 ,  E21B10/50 ,  E21B10/62 ,  E21B10/627 ,  E21B10/633

    Abstract: A cutting element includes a sleeve, a rotatable cutting element, and at least one retaining ring. The sleeve has a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. The rotatable cutting element has an axis of rotation extending therethrough, a cutting face, a body extending axially downward from the cutting face, wherein the body has a shaft that is disposed within the sleeve, and a circumferential groove formed around an outer surface of the shaft. The at least one retaining ring is disposed in the circumferential groove and extends at least around the entire circumference of the shaft, wherein the at least one retaining ring protrudes from the circumferential groove, thereby retaining the rotatable cutting element within the sleeve.

    INNOVATIVE CUTTING ELEMENT AND CUTTING STRUCTURE USING SAME
    3.
    发明申请
    INNOVATIVE CUTTING ELEMENT AND CUTTING STRUCTURE USING SAME 审中-公开

    公开(公告)号：US20160290057A1

    公开(公告)日：2016-10-06

    申请号：US15069788

    申请日：2016-03-14

    Applicant: Smith International, Inc.

    Inventor： Youhe Zhang ,  Jibin Shi ,  Yuri Burhan

    IPC: E21B10/567 ,  E21B10/60 ,  E21B10/633 ,  E21B10/55

    CPC classification number: E21B10/567 ,  E21B10/55 ,  E21B10/56 ,  E21B10/5673 ,  E21B10/60 ,  E21B10/633 ,  Y10T29/4973

    Abstract: A cutting tool is disclosed that includes a tool body, a plurality of cutting element support structures extending from the tool body, at least one slot formed in at least one of the cutting element support structures, a cutting element having a diamond shearing element with a plurality of surfaces, and at least one mechanical retention mechanism adjacent to the cutting element. Each cutting element support structure has a leading face, a top side, and a trailing face, and the slot has two side surfaces, each side surface terminating at the leading face and top side of the cutting element support structure. Each surface of the cutting element has two dimensional values, wherein the cutting element is positioned in the at least one slot such that a plane in which the shortest dimensional value lies intersects the slot side surfaces.

    Drill bit rolling element with retaining ring
    5.
    发明授权
    Drill bit rolling element with retaining ring 有权

    公开(公告)号：US10267096B2

    公开(公告)日：2019-04-23

    申请号：US15981225

    申请日：2018-05-16

    Applicant: Smith International, Inc.

    Inventor： Yuri Y. Burhan ,  Jibin Shi ,  Chen Chen ,  Youhe Zhang

    IPC: E21B10/62 ,  E21B10/567 ,  E21B10/50 ,  E21B10/627 ,  E21B10/633 ,  E21B10/42

    Abstract: A cutting element includes a sleeve, a rotatable cutting element, and at least one retaining ring. The sleeve has a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. The rotatable cutting element has an axis of rotation extending therethrough, a cutting face, a body extending axially downward from the cutting face, wherein the body has a shaft that is disposed within the sleeve, and a circumferential groove formed around an outer surface of the shaft. The at least one retaining ring is disposed in the circumferential groove and extends at least around the entire circumference of the shaft, wherein the at least one retaining ring protrudes from the circumferential groove, thereby retaining the rotatable cutting element within the sleeve.

    ROTATING CUTTING ELEMENTS FOR PDC BITS
    7.
    发明申请
    ROTATING CUTTING ELEMENTS FOR PDC BITS 审中-公开
    旋转切割元件的PDC位

    公开(公告)号：US20140326515A1

    公开(公告)日：2014-11-06

    申请号：US14363266

    申请日：2012-12-04

    Applicant: Smith International, Inc.

    Inventor： Jibin Shi ,  Youhe Zhang

    IPC: E21B10/08 ,  B23P15/28

    CPC classification number: E21B10/573 ,  B23P15/28 ,  E21B10/08 ,  E21B10/43 ,  E21B10/46

    Abstract: A drill bit has a bit body, a plurality of blades extending radially from the bit body, at least one rolling cutter pocket disposed on the plurality of blades, and at least one rolling cutter, wherein each rolling cutter is disposed in one of the rolling cutter pockets, and wherein a side surface of the rolling cutter pocket and an outer circumferential surface of the rolling cutter have at least one mating lip and channel formed therein. Further, the rolling cutter may include a cavity extending at least partially along a rotational axis through the rolling cutter, from a bottom surface of the rolling cutter, and a retention pin disposed within the cavity.

    Abstract translation: 钻头具有钻头本体，从钻头体径向延伸的多个刀片，设置在多个刀片上的至少一个滚切刀具和至少一个轧制刀具，其中每个轧制刀具设置在轧制 切割器凹口，并且其中滚动切割器凹槽的侧表面和滚动切割器的外圆周表面具有形成在其中的至少一个配合唇缘和通道。 此外，滚动切割器可以包括从滚动切割器的底表面至少部分地沿着旋转轴线延伸通过滚动切割器的腔体，以及设置在腔体内的保持销。

    Rolling cutter with close loop retaining ring
    9.
    发明授权
    Rolling cutter with close loop retaining ring 有权

    公开(公告)号：US09605486B2

    公开(公告)日：2017-03-28

    申请号：US13972465

    申请日：2013-08-21

    Applicant: Smith International, Inc.

    Inventor： Yuri Burhan ,  Jibin Shi ,  Chen Chen ,  Youhe Zhang

    IPC: E21B10/633 ,  E21B10/50 ,  E21B10/627

    CPC classification number: E21B10/567 ,  E21B10/42 ,  E21B10/50 ,  E21B10/62 ,  E21B10/627 ,  E21B10/633

    Abstract: A cutting element is disclosed that includes a sleeve, a rotatable cutting element, and at least one retaining ring. The sleeve has a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. The rotatable cutting element has an axis of rotation extending therethrough, a cutting face, a body extending axially downward from the cutting face, wherein the body has a shaft that is disposed within the sleeve, and a circumferential groove formed around an outer surface of the shaft. The at least one retaining ring is disposed in the circumferential groove and extends at least around the entire circumference of the shaft, wherein the at least one retaining ring protrudes from the circumferential groove, thereby retaining the rotatable cutting element within the sleeve.

    Cutting elements retained within sleeves
    10.
    发明授权
    Cutting elements retained within sleeves 有权
    切割元件保留在袖子中

    公开(公告)号：US09328564B2

    公开(公告)日：2016-05-03

    申请号：US13786085

    申请日：2013-03-05

    Applicant: SMITH INTERNATIONAL, INC.

    Inventor： Youhe Zhang ,  Jibin Shi ,  Yuri Burhan ,  Chen Chen

    IPC: E21B10/573 ,  E21B10/42 ,  E21B10/627 ,  E21B10/633

    CPC classification number: E21B10/42 ,  E21B10/573 ,  E21B10/5735 ,  E21B10/627 ,  E21B10/633

    Abstract: A cutter assembly may include a sleeve; and at least one cutting element having a lower spindle portion retained in the sleeve and a portion of the cutting element interfacing an axial bearing surface of the sleeve, wherein an outer diameter D of the cutting element and a radial length T of a substantially planar portion of the axial bearing surface of the sleeve have the following relationship: (1/25)D≦T≦(1/4)D.

    Abstract translation: 切割器组件可以包括套筒; 以及至少一个切割元件，其具有保持在所述套筒中的下心轴部分，并且所述切割元件的一部分与所述套筒的轴向支承表面相接合，其中所述切割元件的外径D和基本平坦部分的径向长度T 的轴向轴承表面具有以下关系：（1/25）D＆nlE; T＆nlE;（1/4）D。

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