【摘要】 分析了煤电钻存在的问题及研制制乳化液煤层液压钻的必要性，确定了液压钻的性能多数并进行了结构设计和样机制依，通过实验室研验和地而模拟钻初试验，液压钻达到了设计要求。更多还原

【Abstract】 The paper analyzes tbe problem, existed in a coal electric drill and points outthat it is necessary to develop tbe bydraulic drill for codl seam witb emulsin,and tbe performance parameters of tbe bydraulic drill dre determined, andstructural design and sample machine are carried. Through testing inexperiment room and simulating drill test on ground tbe bydraulic drillredcbes to tbe requirements of design.更多还原