| 牙轮钻头牙齿与井底接触角的确定 |
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| 引用本文： | 李树盛,蔡镜仑,崔立山. 牙轮钻头牙齿与井底接触角的确定[J]. 中国石油大学学报(自然科学版), 1997, 0(3) |
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| 作者姓名： | 李树盛 蔡镜仑 崔立山 |
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| 作者单位： | 石油大学油田新材料工程研究中心 |
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| 摘 要： | 根据牙轮钻头几何学和运动学原理，分析了钻头齿在井底的运动轨迹和井底轮廓线，提出了确定钻头牙齿与井底接触过程起止点的方法，并运用ＡｕｔｏＣＡＤ绘图软件包建立了确定牙齿与井底接触角的计算机图解法，给出了牙轮钻头设计中的一个应用实例．
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| 关 键 词： | 牙轮钻头；钻头牙齿；接触角；图解法；钻头设计 |
DETERMINATION OF THE CONTACT ANGLES OF BIT TOOTH AND BOTTOM_HOLE |
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| Li Shusheng,Cai Jinglun,Cui Lishan. DETERMINATION OF THE CONTACT ANGLES OF BIT TOOTH AND BOTTOM_HOLE[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1997, 0(3) |
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| Authors: | Li Shusheng Cai Jinglun Cui Lishan |
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| Abstract: | Based on geometry and kinematics of rock bit, this paper proposes a new method to determine the start and the end of contact process of bit tooth and bottom_hole through the analyses of tooth trajectory and bottom_hole outline. The computer graphic method for determining the contact angles of bit tooth and bottom_hole with AutoCAD softwares is developed. The method is successfully used to solves an important problem of working theory for rock bit. |
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| Keywords: | Roller bit Bit teeth Contact angle Graphic solution Bit design |
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