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工程设计学报
工程设计学报  2016, Vol. 23 Issue (4): 396-400    DOI: 10.3785/j.issn.1006-754X.2016.04.016
通用零部件设计     
新型负载敏感平衡阀设计与装机试验
朱石沙1, 吴彦波1, 匡萍1, 罗炎热2
1. 湘潭大学 机械工程学院, 湖南 湘潭 411105;
2. 湖南鸿辉科技有限公司, 湖南 长沙 410000
Design of a new kind of load-sensing counterbalance valve and installation test
ZHU Shi-sha1, WU Yan-bo1, KUANG Ping1, LUO Yan-re2
1. School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China;
2. Hunan Hydfly Science & Technology Co., Ltd., Changsha 410000, China
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摘要：

介绍了一种带折叠臂架的机械用新型负载敏感平衡阀，对其工作原理及结构特点进行了详细阐述.平衡阀芯采用节流孔组合的节流形式，借助MATLAB对节流口过流面积特性曲线进行拟合，当负载压力改变时，通过控制平衡阀芯位移，调节过流面积，达到稳定流量的目的.上述设计使得该阀不仅具有多级调节功能，而且负载敏感性得到提升.为了测试该阀在实际应用环境下的性能，在混凝土泵车上进行了装机试验.结果表明：该阀控制压力低，降低了系统功耗，负载敏感特性表现良好；臂架运行平稳，稳定性得到提升.
关键词： 负载敏感;  平衡阀;  结构设计;  装机试验    
Abstract:

A new kind of load-sensing counterbalance valve which used in the machinery with folding boom was introduced, of which the structure and working principle had been expatiated. A combination of the orifice was used in the counterbalance valve's spool, and the fitted characteristic curve of the open area was produced by the software of MATLAB. When the load pressure was changed, in order to achieve steady quantity of flow, the valve could control the displacement of the counterbalance valve's spool to adjust the flow area. The proposed design not only made the valve possess multi-level adjustment ability but also raised the sensitive nature of the load. To test the performance of the valve under actual application environment, the installation test was done on the concrete pump truck. The results showed that the control pressure was low, the consumption of the system's power was reduced, the sensitive nature of the load had a good performance, the boom ran smoothly, and the stability was improved.
Key words: load-sensing    counterbalance valve    structure design    installation test
收稿日期: 2015-12-30 出版日期: 2016-08-28
CLC:  TH137  
基金资助:

国家自然科学基金资助项目（51075345，11172100）.
作者简介: 朱石沙(1954—),男,辽宁辽阳人,教授,博士,从事流体传动与控制、智能材料等研究,E-mail:zssxtdx@xtu.edu.cn.
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引用本文:

朱石沙, 吴彦波, 匡萍, 罗炎热. 新型负载敏感平衡阀设计与装机试验[J]. 工程设计学报, 2016, 23(4): 396-400.

ZHU Shi-sha, WU Yan-bo, KUANG Ping, LUO Yan-re. Design of a new kind of load-sensing counterbalance valve and installation test. Chinese Journal of Engineering Design, 2016, 23(4): 396-400.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2016.04.016    或    https://www.zjujournals.com/gcsjxb/CN/Y2016/V23/I4/396

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