摘要
针对目前截齿存在的合金钢齿体易磨损造成的截齿齿头脱落失效问题,提出复合莫氏锥度联接的截齿新结构。应用ANSYS有限元软件,对复合莫氏锥度联接结构的金刚石截齿在单一正压力载荷作用下的抗压性能进行了有限元分析。结果表明,在普通结构截齿上复合莫氏锥度联接结构对PCD层的抗压性能影响不大。在齿头锥孔底部端面与钢制齿体锥台根部端面之间的间隙,采用焊料填充焊接可提高截齿在静载荷作用下的抗压性能以及抗齿头脱落性能。莫氏锥度结构中,锥体尺寸变化对齿头锥孔和齿体锥台的应力影响不大。
Based on the current failure problem of pick~ bead off, caused by the easy wear property of alloy steel＇ s tootb body, a new pick structure with composite Moshi taper connection were put forward. The finite element analysis about compressive property of diamond pick with composite Moshi taper connection was carried out by application of ANSYS soft- ware under a single static load. The result shows that ： the Moshi taper connection structure has little effect on the compres- sive property of PCD layer on the pick of normal structure. In the gap between the bottom end surface of tooth head cone hole and the root end surface of steel tooth body cone, using solder filling welding can improve the pick＇ s compressive property and resistance performance of head off under static load. The stress on the tooth head cone and tooth body cone is rarely affected by a change in cone size in the Moshi taper structure.
出处
《工具技术》
北大核心
2015年第9期54-57,共4页
Tool Engineering
关键词
金刚石截齿
莫氏锥度结构
抗压性能
有限元分析
diamond pick
Moshi taper structure
compressive property
finite element analysis
