陈国贤,沈景凤,许仰曾.比例多路阀的数字式控制[J].轻工机械,2011,29(2): |
比例多路阀的数字式控制 |
Digital Control of Proportional Multiple Directional Control Valves |
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DOI: |
中文关键词: 液压传动 电液比例多路阀 数字式控制 高速开关数字阀 负载敏感 |
英文关键词:hydraulic electro-hydraulic proportional multiple directional control valve digital control digital high speed on off valve loading sensing |
基金项目: |
陈国贤 沈景凤 许仰曾 |
1.上海理工大学 机械工程学院; 2.上海豪高机电科技有限公司 |
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中文摘要: |
电液比例多路阀的优点在实际应用中十分明显,但其响应慢、精度低、控制不便等缺点也日益突出。新型数字式控制的比例多路阀弥补了这些缺陷,它以高速开关数字阀代替电液比例减压阀作为多路阀的先导控制元件。文章介绍了多路阀比例控制的原理和以数字阀为先导阀实现比例控制的优点,并用实例说明了数字式控制的原理及其控制性能。 |
英文摘要: |
The advantages of electro-hydraulic proportional multiple directional control valves is obvious in practical applications, but its disadvantages such as slow response, low precision and inconvenience control have become more obviously.The new proportion valve with digital control——a digital high speed on off valve as the pilot-operated elements of multi valve to replace electro hydraulic proportional reducing valve could make up for these deficiencies. This article described the principle of proportional control of the multi-way valve and the advantages of the digital valve as a pilot-operate valve to achieve proportional control, and gave the examples to show the principle of the digital control and control performance. |
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