分析了目前常用的几种典型的缓冲、防撞、托罐装置的工作性能和特点。提出了适用于过卷、过放缓冲吸能的理想特性曲线,分析了今后提升过卷保护装置的发展方向。 The performance and characteristics of several typical buffer, collision avoidance and tank maintenance devices are analyzed. The ideal characteristic curve suitable for over-winding and over-discharge buffering energy absorption is put forward, and the development direction of over-winding protection device is analyzed in the future.