介绍了由西门子P LC和变频器组成的牙轮钻机的调速系统。
This paper introduces gear wheel drill speed system which composed of Siemens PLC and Siemens inverter.
牙轮钻机钻凿的岩层是随机分布、错综复杂的，因而钻进过程难以定义。
The rock stratum drilled by a rotary drill is random distributed and complicated, so it is difficult to define the drilling process.
分析了影响牙轮钻机钻孔速度的主要因素，提出了钻机主要工作参数的确定方法。
This paper analyses the main factors that influence the speed of drilling hole, puts forward the methods to settle the main working parameters of the rotary drill.
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.
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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