本文選題：星形密封圈　切入點：擋圈　出處：《流體機(jī)械》2017年08期 　論文類型：期刊論文

【摘要】：利用ANSYS軟件建立了帶聚四氟乙烯擋圈的丁腈橡膠星形密封圈結(jié)構(gòu)的二維軸對稱幾何模型,分析了靜壓工作狀態(tài)和往復(fù)運動狀態(tài)下其密封機(jī)理、密封性能,并預(yù)測了星形密封圈易發(fā)生失效的具體部位。結(jié)果表明:在高壓(流體壓力10MPa)條件下,使用擋圈可以有效緩和星形密封圈的應(yīng)力集中現(xiàn)象;星形密封圈非壓力側(cè)的內(nèi)側(cè)凸圓靠近擋圈區(qū)域易發(fā)生磨損失效;內(nèi)側(cè)的凹圓部位易發(fā)生撕裂失效。
[Abstract]:A two-dimensional axisymmetric geometric model of the star-shaped seal ring of NBR with PTFE retaining ring was established by using ANSYS software. The sealing mechanism and sealing performance of the ring under static pressure and reciprocating motion were analyzed. The results show that under the condition of high pressure (fluid pressure 10MPa), the stress concentration of star-shaped sealing ring can be alleviated effectively by using the baffle. The inner convex circle of the non-pressure side of the star sealing ring is prone to wear failure near the baffle region, while the inner concave circle region is prone to tear failure.
【作者單位】： 浙江工業(yè)大學(xué)過程裝備及其再制造教育部工程研究中心;上海航天控制技術(shù)研究所上海伺服系統(tǒng)工程技術(shù)研究中心;
【基金】：國家重點基礎(chǔ)研究計劃973項目(2014CB046404) 浙江省自然科學(xué)基金項目(LY14E050012)
【分類號】：TH137
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本文編號：1643161