MG-20S型隧道锚杆钻机的研制与应用

Development and application of MG-20S tunnel anchoring drill

根据目前公路、铁路隧道的两台阶钻爆掘进施工工法,为满足掌子面的炮眼孔,洞壁的系统锚杆、锁脚锚杆孔的施工需求,开发了MG-20S型隧道锚杆钻机。该机为三段臂组成曲臂式变幅机构,具备全方位钻进姿态调整功能,钻进施工可实现自动/手动控制双模式,自由切换,在自动控制模式下,仅需一个按钮便可控制凿岩机回转、冲击和给进,并可根据工况情况及时调整钻进参数;采用无线遥控操作和驾驶室手动操作一键切换,只需1人操作即可成孔;可实现一键展车、一键收车功能,及时完成锚、钻、注工序和装药、爆破、运渣等工序的高效切换,使各种工序专业化、规范化。工业试验表明,该钻机性能可靠、有效,各项参数、功能可以满足隧道两台阶锚、钻施工工艺。

According to the current two‑bench drilling and blasting construction methods of highway and railway tunnels,In order to meet the construction requirements of the cannon hole in the palm and system anchor rods and locking anchor rod holes of the hole wall,the MG-20S tunnel anchoring drill has been developed.The machine is three arms of curved arm amplitude mechanism,with all‑round drilling attitude adjustment function,drilling construction can realize automatic/manual control dual mode,free switch,in the automatic control mode,only a button can control the rock drill rotation,impact and feed,and the drilling parameters can be adjusted in time according to the working conditions;using wireless remote control operation and manual operation of the cab with one key switch,only one person can operate to form a hole;it can realize the function of one‑key to display car and one‑key to collect the car,timely completion of anchor,drilling,injection process and loading,blasting,slag transport and other processes of efficient switching,make various processes professional,standardized.The industrial test shows that the drilling rig is reliable and effective,and all parameters,functions can meet the requirements of the construction technology of anchor and drill in two‑bench of the tunnel.