| 正流量挖掘机动臂合流回路的泵阀匹配特性研究 |
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| 引用本文： | 贾文华,林晓华,马兆允.正流量挖掘机动臂合流回路的泵阀匹配特性研究[J].液压与气动,2016,0(2):41-44. |
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| 作者姓名： | 贾文华 林晓华 马兆允 |
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| 作者单位： | 南京工程学院机械工程学院， 江苏南京211167 |
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| 基金项目： | 国家自然科学青年基金(51505211)；江苏省自然科学青年基金（BK20130741）；南京工程学院基金（QKJB20110 01，YKJ201301） |
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| 摘 要： | 以SY215C8M型液压挖掘机为研究对象，对正流量挖掘机液压系统的动臂合流路的泵阀匹配特性进行了研究。提出了改善泵阀匹配控制特性的优化方案，利用粒子群算法对U型节流阀口的节流特性进行优化，得到了具有较优节流特性的节流阀口结构参数。搭建了实验平台，结果表明：该方案可有效的降低多路换向阀阀口的压力波动和压力损失。
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| 关 键 词： | 挖掘机 泵阀匹配 节流特性 |
Optimization Study on the Pump and Valve Matching Characteristics of Positive Flow Excavator Boom Confluence Loop |
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| JIA Wen-hua,LIN Xiao-hua,MA Zhao-yun.Optimization Study on the Pump and Valve Matching Characteristics of Positive Flow Excavator Boom Confluence Loop[J].Chinese Hydraulics & Pneumatics,2016,0(2):41-44. |
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| Authors: | JIA Wen-hua LIN Xiao-hua MA Zhao-yun |
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| Affiliation: | School of Mechanical Engineering,Nanjing Institute of Technology, Nanjing, Jiangsu211167 |
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| Abstract: | The matching characteristics of the variable pump and the multi way valve were analyzed. An optimization scheme was put forward to improve the variable pump and the multi way valve matching characteristics. The standard particle swarm optimization method was used to optimize the U typle throttle valve port throttling characteristics. the better throttling characteristic parameters and structure were achieved. A hydraulic system testing platform of excavator was built to verify the correctness of the simulation model. The results show that the pressure impacts and pressure loss at the multi way valve port were effectively reduced. |
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