新型仿生PDC齿高效切削机理及试验研究  

Efficient Cutting Mechanism of the New Bionic PDC Teeth and the Experimental Study

作　　者：刘婧[1] 高科[1] 徐小健[1] 李梦[1] 

机构地区：[1]吉林大学建设工程学院,吉林长春130026

出　　处：《探矿工程（岩土钻掘工程）》2013年第12期5-8,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：深部探测技术与实验研究专项"深部探测关键仪器装备研制与实验"之"深部大陆科学钻探装备研制项目"(SinoProbe-09-05);国家潜在油气资源(油页岩勘探开发利用)产学研用合作创新研究项目(OSR-04-04);国家自然科学基金青年科学基金(51004052)

摘　　要：利用仿生耦合理论,根据贝壳和蝼蛄等动植物的非光滑形态结构研制了一种新型的仿生PDC齿,并利用有限元软件abaqus对单个齿磨损前后的运动过程进行分析,与普通PDC齿的应力分布状态进行对比,可以看出,在同等条件下,非光滑PDC切削齿的应力大小及分布情况要明显优于普通的PDC切削齿,具有良好的碎岩效果。此外还对这2种切削齿进行了磨耗比试验,试验结果进一步证明了仿生PDC齿具有一定的优越性。Based on the bionic coupling theory and according to non-smooth morphology of shells, mole cricket and other animals ＆plants, a new kind of bionic PDC tooth is developed.The analysis is made on the single tooth motion process be-fore and after the wear by abaqus finite element software and the comparative analysis is made with the stress distribution state of the common PDC teeth.It can be seen that under the same conditions, the non-smooth PDC cutting teeth have bet-ter stress value and distribution state than the common PDC ones with good rock breaking effect.In addition, the abrasion ratio test is also made on these 2 kinds of cutting teeth;the test results also prove that the PDC bionic PDC teeth have some superiority.

关 键 词：仿生耦合 ABAQUS 非光滑 PDC切削齿 磨耗比 

分 类 号：P634.4[天文地球—地质矿产勘探]