| 电液锤活塞密封窜漏的原因分析及改进 |
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| 引用本文： | 孟凡武,胡大勇,康建伟. 电液锤活塞密封窜漏的原因分析及改进[J]. 液压气动与密封, 2005, 0(1): 47-48 |
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| 作者姓名： | 孟凡武 胡大勇 康建伟 |
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| 作者单位： | 北京理工大学,机械与车辆工程学院,北京,100081 |
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| 摘 要： | 电液锤液气缸活塞密封采用由PTFE制造的格莱圈密封,在使用中液压油会窜入气腔,导致气体压力升高。本文分析了由于缸体膨胀、密封失效而发生窜漏的两种原因,即液膜流过密封环时在气腔积聚和收锤造成的压力冲击。并提出了在格莱圈后安装Yx圈的改进措施。
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| 关 键 词： | 液气缸 格莱圈 密封 活塞密封 |
| 文章编号： | 1008-0813(2005)01-0047-02 |
Analysis and improvement of blow-by for piston seals of electro-hydraulic hammer |
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| MENG Fan-wu,HU Da-yong,KANG Jian-wei. Analysis and improvement of blow-by for piston seals of electro-hydraulic hammer[J]. Hydraulics Pneumatics & Seals, 2005, 0(1): 47-48 |
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| Authors: | MENG Fan-wu HU Da-yong KANG Jian-wei |
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| Abstract: | After PTFE Glyd ring was used in piston seals of hydraulic cylinder of electro-hydraulic hammer, the gas pressure rose because oil entered into gas chamber. This paper analysed two causes of blow-by : accumulation of oil film through seal ring in gas chamber and seal failure caused by hydraulic pressure impact during emergency stop blow, and gives one improvement measure. |
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| Keywords: | hydraulic cylinder blow-by seals piston seals |
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