采煤机、掘进机结构件大修工艺研究与应用

结构件修理是采煤机、掘进机大修过程中的难点，探究关键机械结构件大修工艺对煤机修理企业提升煤机检修质量、降低设备维修成本发挥着重要作用。根据磨损程度与位置，结合设备检修技术要求和实际使用工况条件，采取补焊、镗孔、改造、再制造等工艺，对采煤机、掘进机磨损严重的关键结构件进行修复，实现报废件再利用，达到修旧如新的目标，对大型煤机修理工作有一定参考价值。

Research and application of overhaul technology for structural parts of shearer and roadheader

Structural parts repair is a difficult point in the overhaul of shearer and roadheaders.Exploring the key machinery structural parts overhaul process plays an important role in improving the quality of coal machine maintenance and reducing the cost of equipment maintenance.According to the degree and position of wear，combined with the technical requirements for equipment maintenance and actual working conditions，repair welding，boring，transformation，remanufacturing and other processes are adopted to repair key structural parts with severe wear and tear on the shearer and roadheader to achieve scrap reuse of pieces to achieve the goal of repairing the old as new，has a certain reference value for the repair work of large coal machinery.