摘要
提出一种新型密封结构的滑阀式换向阀。该换向阀体外侧呈圆柱形,以格莱圈作为密封件,代替传统的多级台阶式O形圈密封。阀芯亦用格莱圈密封,代替传统的间隙密封。该阀结构简单,加工精度要求大为降低。试验结果表明:该换向阀密封性好,内泄少,保压性优良,满足有保压需求的液压系统的设计要求。
A type of spool valve with new sealing structure was developed. The outer valve body, sealed with glyd ring, was cy- lindric instead of multi-stage step sealing structure. The valve plug was also sealed by glyd ring instead of clearance fitting. The new spool valve is simply and requires less machining precision. Test shows that the spool valve has better sealed performance and less leak- age, which meets the requirement of the system.
出处
《机床与液压》
北大核心
2017年第8期143-145,共3页
Machine Tool & Hydraulics
关键词
滑阀
格莱圈
密封
泄漏
Spool valve
Glyd ring
Sealing
Leakage
