Advances in Mechanical Engineering ( IF 2.1 ) Pub Date : 2020-05-21 , DOI: 10.1177/1687814020923180 Chuanliu Wang 1
For hard rock drilling in coal mine, the drilling efficiency and service life of polycrystalline diamond compact bit are very low. To overcome these shortcomings, the bionic technology is applied to the design and processing of polycrystalline diamond compact bit. The bit body and polycrystalline diamond compact cutter are designed as bionic structures, and the test of the bionic polycrystalline diamond compact bit is carried out. Test results show that, when drilling in fine sandstone with hardness greater than 9, the performance of the bionic polycrystalline diamond compact bit is significantly improved. Comparing with the Φ113-mm concave polycrystalline diamond compact bit, the service life and drilling efficiency of the A-type bionic polycrystalline diamond compact bit increase by 54% and 230%, respectively, the service life and drilling efficiency of the B-type bionic polycrystalline diamond compact bit increase by 345% and 204%, respectively, which show that the bionic design of polycrystalline diamond compact bit can provide a new research idea for hard rock drilling in coal mine. Also the test results indicate that, when processing the bionic polycrystalline diamond compact cutter, the linear cutting process will cause thermal damage to the diamond layer of polycrystalline diamond compact cutter, while the cold grinding process shows higher comprehensive performance, therefore the one-time synthesis of bionic polycrystalline diamond compact cutter is the future research direction.
中文翻译:
煤矿硬岩钻孔用多晶金刚石复合片的仿生设计与试验
对于煤矿的硬岩钻,多晶金刚石压实钻头的钻孔效率和使用寿命很低。为了克服这些缺点,将仿生技术应用于多晶金刚石紧密钻头的设计和加工。将钻头体和多晶金刚石压块刀具设计为仿生结构,并进行了仿生多晶金刚石压块钻头的测试。测试结果表明,在硬度大于9的细砂岩中钻孔时,仿生多晶金刚石紧密钻头的性能得到显着改善。与Φ113毫米凹面多晶金刚石紧凑型钻头相比,A型仿生多晶金刚石紧凑型钻头的使用寿命和钻孔效率分别提高了54%和230%,B型仿生多晶金刚石紧凑钻头的使用寿命和钻进效率分别提高了345%和204%,这表明多晶金刚石紧凑钻头的仿生设计可以为煤矿硬岩钻探提供新的研究思路。 。测试结果还表明,在加工仿生多晶金刚石紧凑型刀具时,线性切削工艺会对多晶金刚石紧凑型刀具的金刚石层产生热损伤,而冷磨工艺则表现出较高的综合性能,因此一次性合成仿生多晶金刚石紧凑刀具的研制是未来的研究方向。表明聚晶金刚石紧密钻头的仿生设计可以为煤矿硬岩钻探提供新的研究思路。测试结果还表明,在加工仿生多晶金刚石紧凑型刀具时,线性切削工艺会对多晶金刚石紧凑型刀具的金刚石层产生热损伤,而冷磨工艺则表现出较高的综合性能,因此一次性合成仿生多晶金刚石紧凑刀具的研制是未来的研究方向。表明聚晶金刚石紧密钻头的仿生设计可以为煤矿硬岩钻探提供新的研究思路。测试结果还表明,在加工仿生多晶金刚石紧凑型刀具时,线性切削工艺会对多晶金刚石紧凑型刀具的金刚石层产生热损伤,而冷磨工艺则表现出较高的综合性能,因此一次性合成仿生多晶金刚石紧凑刀具的研制是未来的研究方向。