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新型锥形PDC齿犁削破岩理论研究

居培 王传留

居培, 王传留. 新型锥形PDC齿犁削破岩理论研究[J]. 煤田地质与勘探, 2019, 47(2): 212-216. doi: 10.3969/j.issn.1001-1986.2019.02.033
引用本文: 居培, 王传留. 新型锥形PDC齿犁削破岩理论研究[J]. 煤田地质与勘探, 2019, 47(2): 212-216. doi: 10.3969/j.issn.1001-1986.2019.02.033
JU Pei, WANG Chuanliu. Theoretical research on the ploughing rock breaking properties of new conical PDC cutter[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(2): 212-216. doi: 10.3969/j.issn.1001-1986.2019.02.033
Citation: JU Pei, WANG Chuanliu. Theoretical research on the ploughing rock breaking properties of new conical PDC cutter[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(2): 212-216. doi: 10.3969/j.issn.1001-1986.2019.02.033

新型锥形PDC齿犁削破岩理论研究

doi: 10.3969/j.issn.1001-1986.2019.02.033
基金项目: 

天地科技股份有限公司科技创新创业资金专项项目(2018-TD-QN053)

详细信息
    第一作者:

    居培,1987年生,女,江苏南通人,博士,助理研究员,从事PDC钻头设计相关工作.E-mail:jpnt2005@163.com

  • 中图分类号: TD421;TE921

Theoretical research on the ploughing rock breaking properties of new conical PDC cutter

Funds: 

Fundamental Research Funds of TIANDI Science & Technology Co., LTD(2018-TD-QN053)

  • 摘要: 目前关于锥形PDC齿的研究主要集中于数值模拟、现场及室内试验,而关于其切削力学特性的理论分析未见相关报道。通过数值模拟阐述了锥形PDC齿拉伸剪切破岩机理,以及切削载荷分布特性;根据能量平衡原理,推导了锥形PDC齿切削载荷理论公式。结果表明,相比于常规PDC齿,锥形PDC齿破岩过程更加稳定,其切削载荷受岩石性质、齿的形状参数、切削深度以及切削角度的影响,且切削载荷随着锥顶半径、切削角度以及吃入岩石深度的增加而增加。研究成果可为锥形PDC齿及钻头的设计提供理论支撑。

     

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出版历程
  • 收稿日期:  2018-05-03
  • 发布日期:  2019-04-25

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