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MK5掘进机在使用中,出现了铲板星轮变形、除尘风机堵塞以及转载机跑偏等故障,影响了生产效率。针对这些故障,分析了其产生的原因,提出了技术改造方案。星轮变形问题采取加装底托架,将底托架嵌套在铲板与溜槽之间的方法;除尘风机堵塞问题采取堵住原来的吸风口,焊接新的吸风口与原风道相连的方法;转载机跑偏问题采取安装专门设计的带式转载机防跑偏托辊的方法。实践证明,改造后的MK5掘进机故障率明显降低,维修费用减少。
MK5 roadheader in use, there shovel star wheel deformation, dust fan clogging and reloader running deviation and other failures, affecting the production efficiency. In view of these faults, the causes of the faults are analyzed, and the technical transformation scheme is put forward. Deformation of the star wheel to take the addition of the end of the bracket, the bottom bracket nested between the shovel plate and the chute; Dust fan clogged blocked the original suction outlet, the new suction outlet connected to the original air duct Method; runaway runaway problem to take the installation of specially designed belt runaway runaway roller method. Practice has proved that after the transformation of MK5 boring machine failure rate was significantly reduced, reducing maintenance costs.