Study on the contamination wear failure of hydraulic valve and the influencing factors

被引:0
作者
Ge, Peng-Fei [1 ]
Zheng, Chang-Song [1 ]
Ma, Biao [1 ]
机构
[1] School of Mechanical Engineering, Beijing Institute of Technology
来源
Binggong Xuebao/Acta Armamentarii | 2014年 / 35卷 / 03期
关键词
Contamination wear; Hydraulic valve; Influencing factor; Mechanics;
D O I
10.3969/j.issn.1000-1093.2014.03.002
中图分类号
学科分类号
摘要
The contamination wear failure of hydraulic valve is one of the common faults of tracked vehicle. The contamination wear process of hydraulic valve is analyzed from a micro point of view. A model of contamination wear process is established using the theory of three-body abrasion and oil analysis, and then the model is verified by an example. At last, the influencing factors of the hydraulic valve contamination wear are analyzed. Results show that the model is reliable. A lower hardness difference between the spool and the body, a shorter spool contact length and a smaller spool diameter lead to a longer contamination wear life; a higher oil contamination level, a larger proportion of big particles, a higher operating pressure and a higher operating temperature cause a shorter contamination life.
引用
收藏
页码:298 / 304
页数:6
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