无阀式气动双作用潜孔锤仿真分析研究  

The Simulation of Valve-Less Pneumatic Double-Acting DTH Hammer

作　　者：刘宝林 王清岩[1] 高科[1] 谢圣华 LIU Bao-lin;WANG Qing-yan;GAO Ke;XIE Sheng-hua(College of Construction Engineering,Jilin University,Jilin Changchun 130026,China)

机构地区：[1]吉林大学建设工程学院,吉林长春130026

出　　处：《机械设计与制造》2018年第4期37-39,43,共4页Machinery Design & Manufacture

摘　　要：介绍了一种无阀式气动双作用潜孔锤,该潜孔锤不仅能够正向冲击钻进,还能在提钻过程中可实现反向冲击,能有效处理松散地层钻进过程中所遇到的卡钻和埋钻事故。此外,详细介绍了它的工作原理,利用AMESim软件建立了气动潜孔锤的仿真模型,根据具体功能要求与实际工况设置参数,对潜孔锤模型进行仿真分析。得到正常钻进过程与提钻反向冲击过程活塞位移、速度、加速度随时间的变化规律,以及潜孔锤钻进过程中活塞的冲击功、冲击频率随风压、活塞质量的相互影响的关系,为潜孔锤优化设计提供了理论依据。A type of pneumatic double-acting DTH hammer is introduced which does not have slide valve.This DTH hammer can be used in percussion drilling and reversible percussion when lifting the drilling tools.With this function it can be efficient used in dealing with sticking and blocking accident.Besides,the working mechanism is introduced in detail and the simulation model is built with the AM ESim software.The performance parameters are set up based on the structure and the working condition of the DTH hammer.The displacement,velocity and acceleration of piston over time are obtained during drilling and lifting drilling tools by analysis.Furthermore,the relationships between percussion energy,impact frequency and the mass of piston,the air pressure of air-compresses are also acquired,which provide the theoretical basis for designing and optimizing the DTH hammer.

关 键 词：无阀式 双作用 潜孔锤 反向冲击 AMESIM仿真 

分 类 号：TH16[机械工程—机械制造及自动化]