Experimental and Control Research on Pressure Impact during Spool Shifting of Directional-control Valves

机译：方向控制阀滑阀换挡过程中压力冲击的实验与控制研究

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The main factors affecting pressure impact in open hydraulic circuit during switching of spool-type directional-control valves, and their affecting extent are analyzed theoretically in this paper. Modern electro-control technology is adopted to regulate timely oil pump's displacement to realize optimal matching between the output of the oil pump and the requirement of a hydraulic system. In addition, a hydraulic accumulator is installed in the return line as an assistant measure. The pressure impact resulting from spool shifting is reduced extremely, and the aim that a hydraulic system is energy-saving, environment-protecting, and reliable is realized really. Experimental studying for those measures' validity in the concrete pump model HBTS60 is carried out systematically, and satisfactory effects are acquired.

机译：从理论上分析了影响滑阀式方向控制阀切换时液压回路开路压力影响的主要因素及其影响程度。采用现代电控技术及时调节油泵排量，实现油泵输出与液压系统需求的最佳匹配。此外，在回油管路中还安装了一个液压蓄能器作为辅助措施。大大减少了阀芯换档所产生的压力冲击，真正实现了液压系统节能，环保，可靠的目的。对HBTS60型混凝土泵的措施的有效性进行了实验研究，取得了满意的效果。

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来源
《International Conference on Fluid Power Transmission and Control(ICFP' 2005); 20050405-08; Hangzhou(CN)》|2005年|P.2.873-2.876|共4页
会议地点 Hangzhou(CN)
作者
Cao Binxiang; Chen Guoan; Fan tianjin; Yuan Sheng; Wu Genmao;
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作者单位

Tiand heavy-duty machinery manufacturing co., Ltd, Xuzhou, Jiangsu, China, 221116;

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原文格式 PDF
正文语种 eng
中图分类液压传动;工程流体力学;
关键词
hydraulic system; pressure impact; experiment; concrete pump;

机译：液压系统;压力冲击;实验;混凝土泵;

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Experimental and Control Research on Pressure Impact during Spool Shifting of Directional-control Valves

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