论文部分内容阅读
由于轧制钎杆采用高温热机械处理(BTMO),凿岩机钻凿浅眼用的钎杆寿命极大地提高了。且当应用可拆钎肩,特别是金属-橡胶钎肩代替热模压(顶锻)制造的钎肩时具有重大意义。全苏工具科学研究所曾研制了金属-橡胶可拆钎肩。尽管金属-橡胶钎肩的寿命比锻制钎肩钎杆的寿命提高了1～2倍,但是在使用过程中由于振动载荷的作用,可拆钎肩从装配处移动而未获得推广。作者提出了在钎杆上车制环形槽以提高
Thanks to the high temperature thermo-mechanical treatment (BTMO) of the rolling rod, the life of the drill bit for drilling shallow drills has been greatly increased. And it is of great significance when using removable drill shoulders, especially metal-rubber drill shoulders, to replace hot-pressed (forged) brazing shoulders. All-SU Tools Science Institute has developed a metal - rubber removable drill shoulder. Although the service life of metal-rubber brackets is 1 to 2 times longer than that of forged brackets, the removable brackets move away from the assembly due to the vibration load during use without promotion. The author proposes to make an annular groove on the drill rod to improve