数字配流式液压马达配流特性研究  

Distribution Characteristics of Hydraulic Motor with Digital Distribution

作　　者：泮健[1] 施光林[1] 

机构地区：[1]上海交通大学机电控制与物流装备研究所,上海200240

出　　处：《农业机械学报》2011年第10期203-208,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(50775137)

摘　　要：研究一种采用高速电磁开关阀组实现数字式配流的液压马达。首先分析该数字配流式液压马达的运行机理与结构特点;接着在柱塞运动学分析的基础上,根据配流过程分区间建立了其逆时针和顺时针旋转的数学模型,分析了两个方向旋转模型之间的差异。针对所提出的模型进行了仿真,并在此基础上研究了数字配流式液压马达转向切换过程的特性。初步讨论了高速开关阀的开关频率对液压马达性能的影响,并将该马达与传统液压马达进行了对比。通过样机试验,证明了仿真结果的正确性和有效性。A hydraulic motor with digital distribution mechanism based on high speed solenoid valves（HSV） was introduced.Firstly,the operating principle and the structure characteristics of the proposed hydraulic motor were described.Then,the mathematical model of the proposed hydraulic motor was established according to the distribution process for counter-clockwise and clockwise rotation by analyzing the piston dynamics of each plunger.The differences of the two distribution process were analyzed.The related simulation was conducted and the direction changing process of the proposed hydraulic motor was studied.The experiments were carried out to validate the effectiveness of the simulation results.Finally,the influence of the frequency of HSV was discussed and the performance was compared between the proposed motor and the traditional one.

关 键 词：液压马达 数字式配流 高速电磁开关阀 数学模型 

分 类 号：TH137[机械工程—机械制造及自动化]