机构：
天津市轻工与食品工程机械装备集成设计与在线监控重点实验室天津科技大学机械工程学院;
中文关键词：
两级压力源;;液压系统;;驱动效率;;节流损失;;移动机器人
中文摘要：
针对移动机器人单泵源多执行器液压系统效率低下、能量浪费严重等问题,提出一种基于两级压力源的高效率液压系统.以某型液压驱动管道机器人为例,分析不同液压缸负载特性,设计两级压力源液压系统结构与驱动方式,建立高压蓄能器数学模型以及系统效率计算公式,通过数据计算与仿真分析验证两级压力源系统节能效果.结果显示,液压缸活塞运动精度达到3 mm,时间延迟为0.05 s.由于大幅度减小节流损失,两级压力源系统效率比单级压力源系统效率提高了29.3%.两级压力源系统实现执行器供给压力与负载匹配,有效降低能量损失与装机功率,具有良好的应用前景.
英文篇名：
Designing Mobile Robot Efficient Hydraulic System Based on Two-stage Pressure Source
英文作者：
FANG Delei;HU Ruitong;ZHANG Junxia;LI Pan;ZHANG Zunhao;Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment,College of Mechanical Engineering,Tianjin University of Science & Technology;
英文摘要：
In view of the low efficiency and serious energy waste of the hydraulic system of many robot actuators with single pump source,this paper proposes a hydraulic system based on two-stage pressure source. After analyzing the load characteristics of different cylinders of a certain in-pipe robot,the structure and driving mode of a two-stage pressure source hydraulic system were designed. Mathematical modeling and driving efficiency calculation were established. The performance of the two-stage pressure source system was simulated. The result shows that the control accuracy reaches 3 mm,and the time delay is 0.05 s. Compared with the single-stage system,the efficiency of the two-stage system is improved by 29.3%. The two-stage pressure source system can realize the matching between output pressure and actuator loads and effectively reduce energy loss. Therefore,it has a good application prospect.
英文关键词：
two-stage pressure source;;hydraulic system;;drive efficiency;;throttling loss;;mobile robot
