松软煤层ZDY5000RF大功率两体式履带钻机研制

Development of ZDY5000RF High-power Two-departments Crawler Drilling Rig in Soft-extrude Coal Seam

针对松软突出煤层钻进装备钻进与事故处理能力不足、体积大集成性差等问题,结合松软突出煤层瓦斯抽采钻孔施工需要,研制了ZDY5000RF型大功率两体式履带钻机。该钻机采用两体式安全布局,履带驱动行走,增加了安全防护系统和防护措施,整机功率达到75 k W,额定转矩达到5 000 N·m,给进起拔力达到210 k N。现场试验选择在淮北祁南煤矿进行,在f值为0.5左右的松软突出煤层中,完成孔深200 m以上钻孔5个。试验结果表明:该钻机具有功率大、体积小、搬迁方便、安全性高、钻进和事故处理能力强等等显著优点,在松软突出煤层中具备200 m深瓦斯抽采的钻孔施工能力,为松软突出煤层矿井瓦斯灾害治理提供了设备保障。

According to the problems of drilling equipment in soft-extrude coal seam with insufficient drilling and acci-dent treatment ability,large volume and poor integration,the ZDY5000RF high-power two-track crawler drilling rig is devel-oped,combined with the need of gas drainage borehole construction in soft-extrude coal seam. The drilling rig uses two depart-ments and safety layout,crawler drive walking,so the safety protection system and protection measures are increased,the whole machine power reaches 75 kW,the rate torque reaches to 5000 N·m,and the pulling force is up to 210 kN. The field test is conducted in Qinan Coal Mine in Huaibei City,in the soft-extrude coal seam,the f value is about 0. 5,five drill holes is com-pleted with the depth is more than 200 m. The test results show that the drilling rig can meet the requirements of 200 m gas drainage drilling in soft-extrude coal seam based on the significant advantages of high power,small volume,easy removal,high safety,high drilling and accident processing capability,therefore,it can provide equipment guarantee for coal gas disaster con-trolling in soft-extrude coal seam.