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长沙矿山研究院研制的X74-310型牙轮钻头能在坚硬和中硬岩石中稳定地钻进,三个牙轮的运转速度大致相等,而它们的受力又比较均衡。此种钻头在国内外一些露天矿的实际使用表明效果良好,能满足矿业穿孔生产的要求。
The X74-310 roller cone bit developed by Changsha Research Institute of Mining and Mining can stably drill in hard and medium hard rock. The running speed of the three cone wheels is roughly equal, and their forces are balanced. The actual use of such drill bits in some open-pit mines at home and abroad shows good results and can meet the requirements of perforation production in mining industry.