| 以高速开关阀为先导阀的锥阀性能研究 |
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| 引用本文： | 汤展跃,刘少军,黄中华,郭圣敏.以高速开关阀为先导阀的锥阀性能研究[J].机床与液压,2007,35(6):107-109. |
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| 作者姓名： | 汤展跃 刘少军 黄中华 郭圣敏 |
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| 作者单位： | 中南大学机电工程学院,湖南长沙,410083 |
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| 基金项目： | 教育部科学技术研究项目 |
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| 摘 要： | 通过分析以高速开关阀为先导阀的锥阀控制腔压力动态响应过程,以及高速开关阀控制锥阀的流量特性,得出了如下结论:锥阀控制腔压力响应过程受阀芯阻尼孔直径及控制腔体积的影响,其中阻尼孔直径对控制腔压力响应速度影响不大,但是稳定后的控制腔压力则随阻尼孔直径变大而变大;控制腔体积越大,其压力响应速度则越慢;当高速开关阀的调制率在一合适范围内变化时,高速开关阀作为先导阀能实现对锥阀较大流量的线性比例控制.
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| 关 键 词： | 高速开关阀 锥阀 先导阀 PWM 开关阀 先导阀 锥阀 性能 研究 Cone Valve Research Performance 比例控制 线性 大流量 变化 范围 调制率 稳定 力响应速度 腔压 影响 体积 直径 |
| 文章编号： | 1001-3881（2007）6-107-3 |
| 修稿时间： | 2006-06-12 |
Performance Research of Cone Valve Using the on/off Valve as the Pilot Valve |
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| TANG Zhanyue,LIU Shaojun,HUANG Zhonghua,GUO Shengmin.Performance Research of Cone Valve Using the on/off Valve as the Pilot Valve[J].Machine Tool & Hydraulics,2007,35(6):107-109. |
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| Authors: | TANG Zhanyue LIU Shaojun HUANG Zhonghua GUO Shengmin |
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| Affiliation: | School of Mechanical and Electrical Engineering, Central South University, Changsha Hunan 410083, China |
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| Abstract: | The dynamic process of the control chamber pressure and the flow character were analyzed for the cone valve, which uses the high speed on/off valve as the pilot valve. The results show that diameter of the damping hole and the capacity of the control chamber of the cone valve have an influence on the response process of the control chamber pressure. If the diameter of the damping hole is bigger, the control chamber pressure is also bigger. The diameter of the damping hole has a little influence on the rising velocity of the control chamber pressure. If the capacity of the control chamber is bigger, the rising velocity of the control chamber pressure is slower. If the modulation rate of the high speed on/off valve is changed in appropriate range, the proportional large-flow of cone valve can be controlled by the high speed on/off valve. |
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| Keywords: | High speed on/off valve Cone valve Pilot valve PWM |
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