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一、引言 道碴清筛,是铁路大、中维修中最重要的作业项目之一。它直接关系到道床的弹性及排水性能,并对整个线路质量有着很大影响。因此,国内外铁路都对道碴清筛机的研制和发展,给予了足够的重视。
I. INTRODUCTION Ballast cleaning is one of the most important operation items in railway large and medium maintenance. It is directly related to the flexibility and drainage performance of the ballast bed and has a great impact on the quality of the entire circuit. Therefore, railways at home and abroad have paid sufficient attention to the research and development of ballast cleaning machines.