液压泵变量机构建模及能耗特性分析  

Model Establishment of Variable Displacement Mechanism of Hydraulic Pump and Energy Consumption Analysis

作　　者：张建福[1] 王福山[1] 王璇芝 王克[1] 邓伟倩 

机构地区：[1]天津工程机械研究院

出　　处：《工程机械》2013年第7期47-52,9,共6页Construction Machinery and Equipment

摘　　要：研究液压挖掘机用液压泵变量机构的工作原理,利用液压仿真软件AMESim建立变量机构的双泵模型;通过对挖掘机载荷谱试验数据和仿真结果的对比分析,验证仿真模型的正确性;研究挖掘机在交叉功率控制和负流量控制模式下的能耗特性,为变量机构的改进和挖掘机的节能研究提供依据。A modeling for a pump's mechanism and its power consumption rate. By studying how a hydraulic excavator's variable displacement pump mechanism works we built a twin-pump modeling for the variable displacement mechanism with a hydraulic simulation soft-ware AMESim. And then, we went through a comparison and analysis of test data on the excavator's load spectrums versus the simulation results so as to prove corrective-ness of the simulation modeling. Finally, a further study was done on the excavator's power consumption rating under a mode of cross power control and negative flow rate control, thus providing a basis for improving the variable displacement mechanism and for the excavator's lower power consumption rate.

关 键 词：液压泵 变量机构 交叉功率控制 负流量控制 

分 类 号：TH137.51[机械工程—机械制造及自动化]