发明授权
US09187962B2 Methods of attaching rolling cutters in fixed cutter bits using sleeve, compression spring, and/or pin(s)/ball(s)
有权
使用套筒，压缩弹簧和/或销（球）的方式将切割机连接在固定刀头中，
- 专利标题： Methods of attaching rolling cutters in fixed cutter bits using sleeve, compression spring, and/or pin(s)/ball(s)
- 专利标题（中）： 使用套筒，压缩弹簧和/或销（球）的方式将切割机连接在固定刀头中，
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申请号： US13456624申请日： 2012-04-26
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公开(公告)号： US09187962B2公开(公告)日： 2015-11-17
- 发明人: Yuri Burhan , Jiaqing Yu , Jonan M. Fulenchek , Youhe Zhang , Yuelin Shen
- 申请人： Yuri Burhan , Jiaqing Yu , Jonan M. Fulenchek , Youhe Zhang , Yuelin Shen
- 申请人地址： US TX Houston
- 专利权人： Smith International, Inc.
- 当前专利权人： Smith International, Inc.
- 当前专利权人地址： US TX Houston
- 主分类号： E21B10/36
- IPC分类号： E21B10/36 ; B21K5/04 ; E21B10/633 ; E21B10/54 ; E21B10/573
摘要：
A cutting element has a sleeve with a first inner diameter and a second inner diameter, where the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. A rotatable cutting element having an axis of rotation extending therethrough is at least partially disposed within the sleeve. The rotatable cutting element has a cutting face and a body extending axially downward from the cutting face, at least one hole extending from an outer surface of the body toward the axis of rotation, and a locking device disposed in each hole. The locking device protrudes from the hole to contact the second inner diameter of the sleeve, thereby retaining the rotatable cutting element within the sleeve.
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