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国内外研究岩石破碎理论的学者和钻探专家研究金刚石钻头碎岩机理时,多从单颗粒金刚石破碎岩石的情况入手,并且常把金刚石颗粒理想化为球形,提出一些简化假设,然后引用性弹力学中的赫兹(Heinrich Rudolph Hertz 1857-1894)理论,推导出有关的公式和结论,本文试就这方面存在的某些问题作一浅析。据现代弹性理论,两弹性球体,设其半径分别为R_1和R_2,沿着通过接触点O的法线用力P相压,在接触点附近区域发生局部变形,形成一个小圆接触面,最后两球在Z_1、Z_2轴
Scholars and drilling specialists who study the theory of rock fragmentation both at home and abroad study the rock breaking mechanism of diamond bits, and start from the situation of single-particle diamond crushing rocks. They often make the diamond particles idealized into spherical shape and put forward some simplifying assumptions. Then, Heinrich (Heinrich Rudolph Hertz 1857-1894) theory, derived the formula and conclusion, this article try to analyze some of the problems in this area. According to the modern elastic theory, two elastic spheres are set to have their radii R_1 and R_2, respectively, and force P is applied along the normal line passing through the contact point O. Local deformation occurs in the vicinity of the contact point to form a small circular contact surface. The last two Ball on Z_1, Z_2 axis