介绍了一种机电复合驱动石油钻机。
This article is about a kind of mechanical-electric compound drive drill rig.
论述了牙轮钻机主机构减速器的优化设计方法和基本原理，以主机构减速器作为整体进行优化，采用离散复合形算法。
The optimum design method and basic principles of main reducer of rotary blast hole drill are discussed, The main reducer is taken as a whole and is optimized by discrete Complex method.
采用深孔牙轮钻机、利用高台阶崩落法成功地处理了复合采空区，解决了复合采空区处理难的问题，使技术人员在熟练浅采、深采空区处理的情况下，又探索出复合采空区的处理方法。
The paper introduced the successful application of high bench caving method of using deep hole roller rock bit into the practice of solving the complex goaf area, a stuff problem of this kind.
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