摘要
研究了一种改进的盾构掘进机刀盘驱动液压系统,通过驱动功率优化配置实现系统的节能.液压系统由2个大排量液控比例变量泵与2个小排量的电控比例变量泵组合驱动8个液控变量液压马达.液压系统采用电液比例技术进行泵的排量控制,通过包括有比例溢流阀和功率限制阀的液控回路实现了2个大排量变量泵的比例变量和恒功率控制,通过电控系统实现2个小排量泵的比例变量和恒功率控制.建立了液压系统的AMEsim仿真模型,仿真分析了液压系统的调速特性、恒功率特性及负载变化对调速特性的影响.试验研究表明,这种多泵组合调速能满足盾构的不同工况需求.
An improved cutter head drive hydraulic system of the shield tunneling machine was proposed, which achieved energy saving by optimizing the drive power. The hydraulic system had two big variable displacement proportional pumps controlled by pilot pressure and two small variable displacement proportional pumps controlled by electric system, which compounded to drive eight variable displacement motors controlled by pilot pressure. The electro-hydraulic proportional control technique was used in the hydraulic system, where the proportional and constant power control of the two big variable displacement pumps was realized by the proportional pressure relief valve and the power limiting valve. The electro-hydraulic proportional control principle and the constant power control principle using the power limiting valve were introduced. The AMEsim simulation model of this hydraulic system was built. The characteristics of the speed responding, the constant power controlling and the cutter head speed affected by loading were analyzed. The test showed that the hydraulic system satisfied all the working condition.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2009年第3期511-516,共6页
Journal of Zhejiang University：Engineering Science
基金
国家杰出青年基金资助项目(50425518)
国家"973"重点基础研究发展规划资助项目(2007CB714004)
关键词
盾构掘进机
刀盘驱动
多泵优化组合驱动
AMESIM仿真
shield tunneling machine
cutter head drive
pumps optimized combination drive
AMEsim simulation
