比例阀控转向系统响应特性研究

发布时间：2018-03-12 22:41

本文选题：电液比例换向阀　切入点：液压转向系统　出处：《机床与液压》2016年09期 　论文类型：期刊论文

【摘要】：为实现转向轻便性、安全性和舒适性,液压转向系统必须具有稳定性好、转向灵活和响应速度快等动态响应特性,即要求比例阀能够稳定、快速的换向和控制流量。基于此,利用AMESim和Simulink联合仿真分析了油缸在不同参数下的响应特性,研究了电液比例换向阀的阻尼孔直径对线控液压转向系统响应特性的影响。结果表明:阻尼孔直径在2~10 mm范围内,随着阻尼孔直径的增大,到达指定位置所用的时间越长,即响应速度越慢;阻尼孔直径在1 mm时,其超调量较大;阻尼孔直径在8~10 mm范围内,液压缸有小量的震动。
[Abstract]:In order to realize steering portability, safety and comfort, hydraulic steering system must have such dynamic response characteristics as good stability, flexible steering and fast response speed, that is, the proportional valve is required to be stable, fast reversing and flow control. The response characteristics of oil cylinder under different parameters are analyzed by AMESim and Simulink. The effect of damping hole diameter of electro-hydraulic proportional directional valve on the response characteristics of linear hydraulic steering system is studied. The results show that the diameter of damping hole is in the range of 2 ~ 10 mm. With the increase of the diameter of the damping hole, the longer the time to the specified position is, the slower the response speed is, the larger the overshoot of the damping hole is when the diameter of the damping hole is 1 mm, and the small amount of vibration occurs in the hydraulic cylinder when the diameter of the damping hole is in the range of 810 mm.
【作者单位】：内蒙古科技大学机械工程学院;内蒙古师范大学法政学院;
【分类号】：TH137.52

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