双向压扭联轴器空载输入输出特性研究
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摘要
设计了一种双向压扭联轴器,可将直线运动转换为旋转运动,同时使输出扭矩放大,可与2D阀压力增益机制相结合,形成位移可放大的2D阀。通过数值计算和实验的方法得出其输入输出特性,利用颤振补偿技术消除了微小间隙对样机空载输入输出特性的影响,实验结果表明:该联轴器咬合稳定性良好,阀杆输出角度波动在1%以内;选择合适的颤振信号幅值和频率,滞环降到1. 5%左右,且输入输出特性曲线是线性的,仿真和实验结果基本一致,表明该联轴器具有精确的定位刚度,为其在2D电液比例换向阀上的应用奠定基础。
A kind of Bi-direction Thrust Torsion Coupling,which can convert straight movement into rotary and amplify the output torque at the same time,is designed. Combined with the Pressure Gain Mechanism of Two Dimensional( 2 D) Valve,2 D valve with displacement enlarging could be gotten. By using numerical calculation and experimental method,its no-load input and output characteristic was studied,and the non-linear effect caused by the backlash in the thrust torsion coupling was eliminated by dither compensation technology. Experimental result on prototyping coupling carried out shows its good stability in meshing,and its hysteresis is best down to about 1. 5%,when proper dither signal of amplitude and frequency were chosen,and its input and output characteristic is basically linear. Simulation and experiment results are basically same,which show that prototyping coupling has precise position stiffness,which lay foundation for realizing displacement magnification.
A kind of Bi-direction Thrust Torsion Coupling,which can convert straight movement into rotary and amplify the output torque at the same time,is designed. Combined with the Pressure Gain Mechanism of Two Dimensional( 2 D) Valve,2 D valve with displacement enlarging could be gotten. By using numerical calculation and experimental method,its no-load input and output characteristic was studied,and the non-linear effect caused by the backlash in the thrust torsion coupling was eliminated by dither compensation technology. Experimental result on prototyping coupling carried out shows its good stability in meshing,and its hysteresis is best down to about 1. 5%,when proper dither signal of amplitude and frequency were chosen,and its input and output characteristic is basically linear. Simulation and experiment results are basically same,which show that prototyping coupling has precise position stiffness,which lay foundation for realizing displacement magnification.
引文
[1]刘国文.位移放大型2D电液比例换向阀的研究[D].杭州:浙江工业大学,2015.
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[3]吕敏健.2D电液比例换向(节流)阀原理研究[D].杭州:浙江工业大学,2012.
[4]左强,李胜,阮健.2D电液比例方向阀弹性压扭联轴器研究[J].农业机械学报,2014,45(5):327-333.ZUO Q,LI S,RUAN J.2D Electro-hydraulic Proportional Directional Valve Elastic Thrust Torsion Coupling[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(5):327-333.
[5]励伟,陈莹,张凯,等.三位四通2D电液比例换向阀的静态特性实验研究[J].液压与气动,2013(12):56-59.LI W,CHEN Y,ZHANG K,et al.Experimental Investigation on Static Characteristics of Three-position and Fourway 2D Electro-hydraulic Proportional Directional Valve[J].Chinese Hydraulics&Pneumatics,2013(12):56-59.
[6]陈莹.低功耗小流量2D电液比例换向阀的设计及研究[D].杭州:浙江工业大学,2013.
[7]ARAFA H A,RIZK M.Identification and Modeling of Some Electrohydraulic Servo Valve Non-linearities[J].Journal of Mechanical Engineering Science,1987,201(2):137-145.
[8]RUAN J,BURTON R,UKRAINETZ P.An Investigation into the Characteristic of a Two Dimensional“2D”Flow Control Valve[J].Journal of Dynamic Systems Measurement and Control,2002,24(1):214-220.
[9]MERRITT H E.Hydraulic Control Systems[M].New York:John Wiley&Sons,1967.
[10]ANDERSON G C,FRANK K F.Three-way Proportional Valve:US,US4569273[P].1986-11-02.
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[12]雷天觉.新编液压工程手册[M].北京:北京理工大学出版社,1998.
[13]宋志安,曹连民,黄靖,等.MATLAB/Simulink与液压控制系统仿真[M].2版.北京:国防工业出版社,2012.
[2]阮健.电液直接数字控制[M].杭州:浙江大学出版社,2000.
[3]吕敏健.2D电液比例换向(节流)阀原理研究[D].杭州:浙江工业大学,2012.
[4]左强,李胜,阮健.2D电液比例方向阀弹性压扭联轴器研究[J].农业机械学报,2014,45(5):327-333.ZUO Q,LI S,RUAN J.2D Electro-hydraulic Proportional Directional Valve Elastic Thrust Torsion Coupling[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(5):327-333.
[5]励伟,陈莹,张凯,等.三位四通2D电液比例换向阀的静态特性实验研究[J].液压与气动,2013(12):56-59.LI W,CHEN Y,ZHANG K,et al.Experimental Investigation on Static Characteristics of Three-position and Fourway 2D Electro-hydraulic Proportional Directional Valve[J].Chinese Hydraulics&Pneumatics,2013(12):56-59.
[6]陈莹.低功耗小流量2D电液比例换向阀的设计及研究[D].杭州:浙江工业大学,2013.
[7]ARAFA H A,RIZK M.Identification and Modeling of Some Electrohydraulic Servo Valve Non-linearities[J].Journal of Mechanical Engineering Science,1987,201(2):137-145.
[8]RUAN J,BURTON R,UKRAINETZ P.An Investigation into the Characteristic of a Two Dimensional“2D”Flow Control Valve[J].Journal of Dynamic Systems Measurement and Control,2002,24(1):214-220.
[9]MERRITT H E.Hydraulic Control Systems[M].New York:John Wiley&Sons,1967.
[10]ANDERSON G C,FRANK K F.Three-way Proportional Valve:US,US4569273[P].1986-11-02.
[11]成大先.机械设计手册1-5卷[M].5版.北京:化学工业出版社,2008.
[12]雷天觉.新编液压工程手册[M].北京:北京理工大学出版社,1998.
[13]宋志安,曹连民,黄靖,等.MATLAB/Simulink与液压控制系统仿真[M].2版.北京:国防工业出版社,2012.