钻探工程2024，Vol.51Issue(1)：40-50,11.DOI:10.12143/j.ztgc.2024.01.006
基于ABAQUS的气动潜孔锤球齿碎岩及布齿优化
Pneumatic DTH hammer tooth crushing and optimization of teeth arrangement based on ABAQUS
摘要
Abstract
In order to improve the rock breaking efficiency and service life of the large diameter drill hammer in hard formation,ABAQUS software was used to establish the simulation model of rock breaking with spherical teeth.The curves of crushing specific work,invasion depth,crushing range and stress influence range of φ18mm spherical teeth in the process of impact cutting rock breaking under different drilling parameters were compared and analyzed,and the drilling parameters and tooth layout were optimized.The analysis results show that when the weight on bit is 1.2kN and the impact energy is 30J,the crushing efficiency of the rock is higher,the displacement of the spherical teeth into the rock can reach 0.67mm,and the stress limit of the rock is divided,and the influence range of the stress is 43.4mm.Through the simulation of double-tooth impact cutting,the better ring distance and spacing were determined:the ring distance was 47.4mm,and the spacing was 43.4～51.4mm.Considering the wear of the spherical teeth,using the ring distance and spacing,the teeth of the 711mm large-diameter drill hammer were optimized.关键词
气动潜孔锤/球齿/钻进参数/布齿/应力影响范围/坚硬地层/岩石破碎/ABAQUSKey words
pneumatic DTH hammer/spherical teeth/drilling parameters/teeth arrangement/stress influence range/extra-hard formation/rock fragmentation/ABAQUS分类
地质学引用本文复制引用
杨秋明,周兢,王瑜,夏柏如,吴浩..基于ABAQUS的气动潜孔锤球齿碎岩及布齿优化[J].钻探工程,2024,51(1):40-50,11.基金项目
贵州省科技计划项目"矿山灾害事故生命救援孔高效气动钻具及快速成孔工艺与装备研究"(编号:[2023]一般422) （编号:[2023]一般422）
中国煤炭地质总局科技创新项目(编号:ZMKJ-2021-ZX05) （编号:ZMKJ-2021-ZX05）
