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我在微信里看到《装载机动臂出现下落情况怎么办》这篇文章(原文转自《工程机械与维修》杂志2015年第二期),该文分析动臂自动下落原因中的第4条讲到“在动臂缸活塞杆快速运动过程中,动臂缸内的空气会因受到急剧压缩而产生瞬间高温、高压。若产生的高温、高压超过动臂缸密封圈的承受极限,将引发密封圈失效。动臂缸活塞密封圈失效后,其无杆腔中的液压油将向有杆腔泄漏,从而导致动臂自动下落。”对此描述,
I read in WeChat “How do the loader boom appear?” This article (Original from “Construction Machinery and Maintenance” magazine 2015 second period), the article analyzes the reasons for the automatic drop arm 4 To the boom cylinder piston rod during rapid movement, the boom cylinder air will be subjected to rapid compression caused by transient high temperature and pressure If the resulting high temperature and pressure over the boom cylinder sealing ring to withstand the limit, will trigger Failure of the sealing ring After the failure of the piston cylinder piston ring, the hydraulic oil in the rodless chamber will leak to the rod chamber, which will cause the boom to fall automatically. "For this description,