1、 毕业设计(论文) 带位移电反馈的二级电液比例节流阀设计带位移电反馈的二级电液比例节流阀设计 The design of two stage electro-hydraulic proportional throttle valve with displacement electricity feedback 学生姓名 学院名称 机电工程学院 专业名称 机械设计制造及其自动化 指导教师 I 摘要 电液比例技术发展迅猛，以其控制精度较高、结构简单、成本合理等优点在工业生产 中获得了越来越来广泛的应用，它的发展程度也可从一个侧面反映一个国家液压工业技术 的水平，因而日益受到各国工业界的重视。 本设
2、计的课题是二级电液比例节流阀。在对该阀各部分的结构、原理及性能参数进行 详细分析的基础上，完成了功率级为二通插装阀，先导级为电液比例三通减压溢流阀，通 径为 34mm，最大流量为 480L/min，进油口额定工作压力为 33.5MPa，出油口额定工作压力 为 30.5MPa 的电液比例节流阀的结构设计与参数设计。 利用 UG 进行运动仿真实验，使设计更加的合理。 关键词关键词 电液比例节流阀；比例电磁铁；插装阀；减压溢流阀；UG 运动仿真 II Abstract The technology of electro-hydraulic proportional develops swiftly
3、and violently, it has more and more come the widespread application in the industrial production by its precision control, the simply structure, the reasonable cost and so on, its degree of development also might reflect a national hydraulic pressure industrial technology level from a side, so this
4、technology received more and more value by the various countries industrial field. The topic of this graduation project is two stage electro-hydraulic proportional throttle valve. This design will first carry on detailed analysis to the structure, principle and function parameter of various part of
5、this kind of valve, then complete the structural design and the parameter design of the two stage electro-hydraulic proportional throttle valve ,this valves main stage is cartridge valve ,its forerunner stage is three contacts reduced pressure overflow valve .This valves rectum is 32mm,and its max r
6、egulated flow is 480L/min,the oil input port fixed working pressure is 31.5MPa, the output port fixed working pressure is 30.5MPa. Using UG motion simulation experiment to make the design more reasonable Keywords Electro-hydraulic proportional throttle valve Cartridge valves Proportion electro-magnet ratio electromagnet pressure overflow valve UG movement simulation 徐州工程学院毕业 设 计(论文 ) I 目目 录录 摘要 I Abstract . II 1 绪论 . 1 1.1 背景及意义 1 1.1.1 电液比例阀的发展阶段 1 1.1.2 电液比例技术在我国的发展状况 1 1.1.3 电液比例技术在国
