附加压力切断阀的液压缸缓冲结构分析

The Buffer Structure Analysis of Hydraulic Cylinder with Pressure Cut-off Valve

附加压力切断阀的液压缸缓冲装置是一种在环形间隙式缓冲装置的基础上增加一个压力切断阀的缓冲结构。液压缸进入缓冲阶段利用缓冲套与端盖之间的间隙,油液流过间隙时缓冲腔产生背压,通过压力切断阀限制缓冲腔的最高压力,达到平稳缓冲的目的。

Buffer device of hydraulic cylinder with pressure cut-off valve is based on a kind of annular clearance buffer structure,adding a pressure cut-off valve.At the stage of buffering,the oil in hydraulic cylinder cross the gap between buffering sleeve and the cover,and set up pressure in buffer cavity.Meanwhile,pressure cut-off valve limit the highest pressure of buffer cavity to reach the purpose of smooth buffer.