| 一种大型液压升降机构的节流调速及节能回路设计与研究 |
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| 引用本文： | 邱腾雄,徐勇军,丘永亮.一种大型液压升降机构的节流调速及节能回路设计与研究[J].液压与气动,2017,0(4):33-36. |
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| 作者姓名： | 邱腾雄 徐勇军 丘永亮 |
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| 作者单位： | 1. 广东工贸职业技术学院 机械工程系, 广东 广州 510510;
2. 广东工业大学 机电工程学院, 广东 广州 510090 |
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| 基金项目： | 国家自然科学基金(51575112); 广东省第二批高等职业教育专业领军人才培养对象资助项目(2016-180) |
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| 摘 要： | 在对传统大型升降机构的液压节流回路进行分析的基础上,研究开发出一种大型液压升降机构的节流调速及节能回路,分别对该回路中节流调速回路及节能回路的特性进行分析,最终确定复合液压缸及调速阀的作用,可实现在负载变化的条件下,升降机构匀速下降,且其下降速度取决于调速阀阀口的过流面积,从而降低了升降机构对机构整体框架的冲击;通过复合液压缸与蓄能器的综合作用,实现了液压系统的节能。对液压系统进行实验验证,证明该液压系统下降速度平稳,符合液压升降机构工况实际应用需要。
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| 收稿时间： | 2016-11-15 |
A Throttle Speed Regulating and Energy Saving Circuit for Large Hydraulic Lifting Mechanism |
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| QIU Teng-xiong,XU Yong-jun,QIU Yong-liang.A Throttle Speed Regulating and Energy Saving Circuit for Large Hydraulic Lifting Mechanism[J].Chinese Hydraulics & Pneumatics,2017,0(4):33-36. |
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| Authors: | QIU Teng-xiong XU Yong-jun QIU Yong-liang |
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| Affiliation: | 1. Department of Mechanical Engineering, Guangdong College of Industry and Commerce, Guangzhou, Guangdong 510510;
2. Faculty of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510090 |
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| Abstract: | Based on the analysis of the hydraulic throttle circuit of the traditional large lifting mechanism, a throttle speed regulating and energy saving circuit for large hydraulic lifting mechanism are developed. Through the analysis of the characteristics about the throttle speed regulating circuit and energy saving circuit, the action of the compound hydraulic cylinder and the speed regulating valve is confirmed, and therefore the lifting mechanism uniform can decline at a constant rate under the condition of the changing load so as to reduce the impact of the lifting mechanism on the overall frame of the mechanism. Its descent speed depends on the valve orifice flow area of the throttle speed regulating valve. The energy saving of the hydraulic system could be realized by the combination of the compound hydraulic cylinder and the accumulator. Finally, through the experiment, the hydraulic system is proved to be stable, and can meet the requirements of the practical application of the hydraulic lifting mechanism. |
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