拖拉机电液提升控制阀的设计研究
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摘要
拖拉机电液提升控制阀是拖拉机电液提升系统中的重要部件,主要用于控制拖拉机悬挂农具的升降。为此,分析了电液提升控制阀的工作原理,并对其进行了结构设计与数学建模。利用AMEsim软件建立了电液提升控制阀的HCD模型,并对其工作性能进行了仿真分析。仿真结果表明:所设计电液提升控制阀响应快且变化平稳,控制电流与输出流量、液压缸移动速度线性度较好,满足实际工作需要。
The electro-hydraulic raise control valve of tractor is an important component of the electro-hydraulic lift system,and it is mainly used to control the lift of tractor suspension farm tools. In this paper,the working principle of electro-hydraulic raise control valve of tractor is analyzed,and its structure design and mathematical modeling are carried out. The HCD model of electro-hydraulic raise control valve is established by using AMEsim software,and its working performance is simulated and analyzed. The simulation results show that the electro-hydraulic raise control valve has fast response and steady change,and the linearity of the control current and output flow/hydraulic cylinder moving speed is good,which can meet the needs of actual work.
The electro-hydraulic raise control valve of tractor is an important component of the electro-hydraulic lift system,and it is mainly used to control the lift of tractor suspension farm tools. In this paper,the working principle of electro-hydraulic raise control valve of tractor is analyzed,and its structure design and mathematical modeling are carried out. The HCD model of electro-hydraulic raise control valve is established by using AMEsim software,and its working performance is simulated and analyzed. The simulation results show that the electro-hydraulic raise control valve has fast response and steady change,and the linearity of the control current and output flow/hydraulic cylinder moving speed is good,which can meet the needs of actual work.
引文
[1]李国栋.拖拉机悬挂电液提升控制系统的研究[D].长春:吉林大学,2017.
[2]蔡鲁锋.基于电控液压系统的拖拉机悬挂装置耕深自动控制研究[D].长春:吉林大学,2016.
[3]谢凌云.大马力拖拉机电液悬挂系统耕深自动控制研究[D].镇江:江苏大学,2016.
[4]李立.拖拉机后悬挂电液控制系统的研究[D].哈尔滨:哈尔滨工业大学,2012.
[5]郭兵.拖拉机电控液压悬挂系统力位综合控制技术研究[D].南京:南京农业大学,2013.
[6]吕杰.农用拖拉机后悬挂液压系统的控制研究[D].秦皇岛:燕山大学,2016.
[7]Weatherly E T,Jr C G B.Automatic depth control of a seed planter based on soil drying front sensing[J].Transactions of the Asae,1997,40(2):295-305.
[8]李明生,朱忠祥,毛恩荣,等.大功率拖拉机电液提升器比例提升阀设计[J].农业机械学报,2012,43(10):31-35.
[9]李明生,宋正河,迟瑞娟,等.大功率拖拉机电液提升器比例下降阀仿真与优化[J].农业机械学报,2012,43(S1):1-5.
[2]蔡鲁锋.基于电控液压系统的拖拉机悬挂装置耕深自动控制研究[D].长春:吉林大学,2016.
[3]谢凌云.大马力拖拉机电液悬挂系统耕深自动控制研究[D].镇江:江苏大学,2016.
[4]李立.拖拉机后悬挂电液控制系统的研究[D].哈尔滨:哈尔滨工业大学,2012.
[5]郭兵.拖拉机电控液压悬挂系统力位综合控制技术研究[D].南京:南京农业大学,2013.
[6]吕杰.农用拖拉机后悬挂液压系统的控制研究[D].秦皇岛:燕山大学,2016.
[7]Weatherly E T,Jr C G B.Automatic depth control of a seed planter based on soil drying front sensing[J].Transactions of the Asae,1997,40(2):295-305.
[8]李明生,朱忠祥,毛恩荣,等.大功率拖拉机电液提升器比例提升阀设计[J].农业机械学报,2012,43(10):31-35.
[9]李明生,宋正河,迟瑞娟,等.大功率拖拉机电液提升器比例下降阀仿真与优化[J].农业机械学报,2012,43(S1):1-5.