With advancing of drilling capacity of drill rig for underground coal mine,the previous drill rig test stand can not meet the need for testing the torque moment over 6000 Nm.
由于煤矿坑道钻机钻进能力的提高,原有的钻机试验台已不能满足测试转矩超过6 000 Nm钻机的需要,为此,新建了煤矿坑道钻机试验台。
The merit of funnel drilling machine and its practical example;
钻斗钻机的优点及其工程实践实例