卡式减速顶、停车顶是一种不需要在钢轨上钻孔的调速设备,由于它安装方便灵活,其市场前景非常广阔。本文结合这个系列顶的结构特点和现场应用情况,分析了它们的性能和特点并同传统顶的安装方式做了比较。 Card decelerator, parking roof is a do not need to drill in the rail speed control equipment, because it is easy to install and flexible, its market prospects are very broad. Combined with the structural features and field applications of this series of roofs, this paper analyzes their performance and characteristics and compares them with the traditional top mounting method.