大同煤矿集团引进了全国首台MK5掘进机,该掘进机是英国DOSCO公司推出的新型悬臂式掘进机。MK5在投入使用时间内,发挥先进性,提高了岩巷掘进的工作效率,但是也出现了一些问题。针对MK5在实际使用中的问题,提出了相应的优化和解决措施,取得了较好的效果。(1)在铲板上部、小溜尾轴与星轮上部增加油管防护盖板,改进了油管受大块岩石挤压以及煤泥漏入马达的问题;(2)通过与厂家联系改进油缸设计,解决了左、右升降油缸活塞杆易断的问题;(3)为星轮马达设计了检修口,方便检修,仅此项每年可节约经费9.3万元;(4)改造后,机组与现有设备配套良好,提高了生产效率,降低了设备故障率,易损件也不致轻易损坏。 Datong Coal Mine Group introduced the country’s first MK5 boring machine, which is a new type of cantilever boring machine introduced by the United Kingdom DOSCO. MK5 put into play in the time, put forward the advanced nature, improve the working efficiency of rock tunneling, but also appeared some problems. In view of the problem of MK5 in practical use, the corresponding optimization and solution measures are put forward, and good results have been achieved. (1) Increase the tubing protection cover on the upper part of the spade board, the small slippery shaft and the upper part of the star wheel to improve the problem that the tubing is squeezed by large rocks and the slime leaks into the motor; (2) Improve the design of the fuel tank by contacting the manufacturer , To solve the left and right lifting cylinder piston rod is easy to break the problem; (3) Stargate motor access port designed to facilitate overhaul, only the annual savings of 93,000 yuan; (4) After the transformation, the unit and the present A good equipment, improve production efficiency and reduce equipment failure rate, wearing parts will not easily damaged.