隔膜室橡胶密封圈结构参数研究  

Study on Structure Parameters of the Rubber Seal Ring of Diaphragm Chamber

作　　者：凌学勤[1] 刘杰[1] 张伟 巩云鹏[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110819 [2]中国有色(沈阳)泵业有限公司,辽宁沈阳110141

出　　处：《东北大学学报（自然科学版）》2011年第11期1639-1642,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50775029)

摘　　要：针对原密封圈的结构缺陷,改进了密封圈的结构,在美国AXEL实验室完成隔膜室密封圈橡胶材料性能实验.用有限元软件ANSYS对橡胶密封圈进行建模分析,以最大接触压力和最大等效应力为工作能力判据,分析结构参数对密封性能的影响,对密封圈结构的基本几何尺寸进行优化.结果表明:密封圈密封面宽度和压缩量应以保证均匀连续密封压力带,避免出现织物边缘应力过大为宜.确定了所分析参数隔膜室密封圈密封面宽取1.5 mm、压缩量取3 mm为最佳尺寸.解决了隔膜室密封结构的密闭性和早期失效问题,为设计提供参考依据.The seal ring structure was reformed to improve the sealing performance and the experiment about the rubber properties were carried out in the US AXEL laboratory.The rubber seal ring model was built and analyzed by ANSYS,and the strain and stress under working state were calculated with the maximum contact stress as working ability criteria.The effect of structure parameters on sealing performance was then analyzed and the geometry dimensions were optimized.It was shown that the suitable width of sealing surface is 1.5 mm and the compressing distance is 3 mm,which can prevent the problems of tightness and early failure of the diaphragm chamber.This work may offer some useful information for the design of seal ring.

关 键 词：橡胶特性 密封圈结构 密封性能 失效准则 参数优化 

分 类 号：TH123.3[机械工程—机械设计及理论]