回撤吊车负载敏感液压系统设计及仿真分析
|
摘要
为解决负载匹配,以及缓解支架回撤吊车应用过程中存在的能耗高、效率低和系统温度高等问题,基于负载敏感变量泵对其液压系统进行设计及仿真分析。该液压系统主要由负载敏感变量泵、流量补偿阀、负载敏感阀、梭阀和液压缸等组成。在工作过程中,负载敏感变量泵通过梭阀及负载敏感阀感知系统负载力而向系统提供所需流量。基于AMESim对该液压系统和变量泵进行建模及仿真分析,得到液压缸压力、负载口流量变化和梭阀流量补偿以及变量泵压力、流量和斜盘倾角变化情况。结果表明:变量泵可根据负载所需压力和流量实时调整斜盘倾角大小,进而实现压力-流量补偿功能;负载压力和流量阶跃变化时,变量泵具有良好的动态补偿特性。
To solve the problem of load matching and ease the problems of high energy consumption,low efficiency and high system temperature in application process of shield mule,we design and simulate a hydraulic system of shield mule based on a load sensitive variable pump. The hydraulic system is mainly composed of a load sensing variable pump,a flow compensation valve,a load sensing valve,a shuttle valve and a hydraulic cylinder. A load sensing variable pump senses system load force through a shuttle valve and a load sensing valve to provide the required flow rate to the hydraulic system in working process. Modeling and simulation analysis for the hydraulic system and variable pump are completed based on AMESim,and the changes of hydraulic cylinder pressure,load flow,variable pump pressure,flow and swashplate angle and shuttle valve flow compensation are obtained. The results show that the swashplate angle of variable pump can be adjusted in real time according to the required load pressure and flow rate,thus we can make the system realize pressure-flow compensation function; the variable pump has good dynamic compensation characteristic when load pressure and flow change step by step.
To solve the problem of load matching and ease the problems of high energy consumption,low efficiency and high system temperature in application process of shield mule,we design and simulate a hydraulic system of shield mule based on a load sensitive variable pump. The hydraulic system is mainly composed of a load sensing variable pump,a flow compensation valve,a load sensing valve,a shuttle valve and a hydraulic cylinder. A load sensing variable pump senses system load force through a shuttle valve and a load sensing valve to provide the required flow rate to the hydraulic system in working process. Modeling and simulation analysis for the hydraulic system and variable pump are completed based on AMESim,and the changes of hydraulic cylinder pressure,load flow,variable pump pressure,flow and swashplate angle and shuttle valve flow compensation are obtained. The results show that the swashplate angle of variable pump can be adjusted in real time according to the required load pressure and flow rate,thus we can make the system realize pressure-flow compensation function; the variable pump has good dynamic compensation characteristic when load pressure and flow change step by step.
引文
[1]孙保山,殷新胜,田宏亮,等.基于负载反馈技术的履带式钻机液压系统[J].煤炭科学技术,2011,39(3):95-99.SUN Baoshan,YIN Xinsheng,TIAN Hongliang,et al.Hydraulic System of Crawler Type Drilling Rig Based on Load Feedback Technology[J].Coal Science and Technology,2011,39(3):95-99.
[2]ZHANG Ji,ZHANG Tiezhu,CHENG Lianjun.Dynamic Simulation Research Based on AMESim Load-sensing Pump[J].Applied Mechanics and Materials,2014(687)-2014(691):195-200.
[3]Prasad A K,Shinde B,Gopalakrishn V A.Sensitivity Analysis of Hydraulic Brake Load Sensing Valve[C].Pune,India,SAE International,SIAT 2017,2017.
[4]王敬国.负载敏感阀在全液压钻机中的应用分析[J].煤炭工程,2017,49(4):129-131,135.WANG Jingguo.Analysis on Application of Load-sensitive Valve in Fully Hydraulic Drilling Machine[J].Coal Engineering,2017,49(4):129-131,135.
[5]王淑芬,饶博,李玉光,等.基于负载敏感技术的液压助力转向系统研究[J].机床与液压,2016,44(15):102-104,111.WANG Shufen,RAO Bo,LI Yuguang,et al.Research of Hydraulic Power Steering System Based on Load-sensing Technology[J].Machine Tool&Hydraulics,2016,44(15):102-104,111.
[6]苗国华,崔元福,王永,等.平地机负载敏感液压系统设计[J].液压气动与密封,2017,37(1):56-59.MIAO Guohua,CUI Yuanfu,WANG Yong,et al.Design of Hydraulic System with Load Sensing for Motor Grader[J].Hydraulics Pneumatics&Seals,2017,37(1):56-59.
[7]黄虎,陈光柱,蒋成林.全液压钻机负载敏感液压系统设计及仿真分析[J].液压与气动,2015,(3):71-74.HUANG Hu,CHEN Guangzhu,JIANG Chenglin.The Design and Simulation of Load Sensing Hydraulic System in Fully Hydraulic Driver Drill[J].Chinese Hydraulics&Pneumatics,2015,(3):71-74.
[8]沈国泉,王建嵘.基于负载敏感控制的垃圾桶清洗车液压系统研究[J].机床与液压,2017,45(4):139-141.SHEN Guoquan,WANG Jianrong.Hydraulic System of the Garbage Bin Cleaning Vehicle Based on Load Sensitive Control[J].Machine Tool&Hydraulics,2017,45(4):139-141.
[9]徐莉萍,南晓青,蔡留金.负载敏感多路阀测试系统研究[J].液压与气动,2016,(11):82-86.XU Liping,NAN Xiaoqing,CAI Liujin.Research on Loadsensitive Multi-way Valve Test System[J].Chinese Hydraulics&Pneumatics,2016,(11):82-86.
[10]林添良,黄伟平,任好玲,等.工程机械负载敏感型自动怠速系统[J].上海交通大学学报,2016,50(12):1929-1935.LIN Tianliang,HUANG Weiping,REN haoling,et al.Automatic Idle Speed Control of Load Sensing for Electricdriven Construction Machinery[J].Journal of Shanghai Jiaotong University,2016,50(12):1929-1935.
[11]宋飞,楼京俊,彭利坤.负载敏感液压系统的超压和气蚀问题研究[J].液压与气动,2017,(2):58-62.SONG Fei,LOU Jingjun,PENG Likun.Overpressure and Cavitation of Load-sensing Hydraulic System[J].Chinese Hydraulics&Pneumatics,2017,(2):58-62.
[12]臧华东,张建国.基于负载敏感控制的压差液压系统流量特性研究[J].机床与液压,2016,44(20):130-132,154.ZANG Huadong,ZHANG Jianguo.Research on Flow Characteristic of Differential Pressure Hydraulic System Based on Load Sensitive Control[J].Machine Tool&Hydraulics,2016,44(20):130-132,154.
[13]王晨升,苏芳,樊龙,等.基于AMESim的支架回撤吊车工作液压系统设计与仿真分析[J].液压与气动,2017,(7):60-66.WANG Chensheng,SU Fang,FAN Long,et al.Design and Simulation Based on AMESim for Hydraulic System of Shield Mule[J].Chinese Hydraulics&Pneumatics,2017,(7):60-66.
[2]ZHANG Ji,ZHANG Tiezhu,CHENG Lianjun.Dynamic Simulation Research Based on AMESim Load-sensing Pump[J].Applied Mechanics and Materials,2014(687)-2014(691):195-200.
[3]Prasad A K,Shinde B,Gopalakrishn V A.Sensitivity Analysis of Hydraulic Brake Load Sensing Valve[C].Pune,India,SAE International,SIAT 2017,2017.
[4]王敬国.负载敏感阀在全液压钻机中的应用分析[J].煤炭工程,2017,49(4):129-131,135.WANG Jingguo.Analysis on Application of Load-sensitive Valve in Fully Hydraulic Drilling Machine[J].Coal Engineering,2017,49(4):129-131,135.
[5]王淑芬,饶博,李玉光,等.基于负载敏感技术的液压助力转向系统研究[J].机床与液压,2016,44(15):102-104,111.WANG Shufen,RAO Bo,LI Yuguang,et al.Research of Hydraulic Power Steering System Based on Load-sensing Technology[J].Machine Tool&Hydraulics,2016,44(15):102-104,111.
[6]苗国华,崔元福,王永,等.平地机负载敏感液压系统设计[J].液压气动与密封,2017,37(1):56-59.MIAO Guohua,CUI Yuanfu,WANG Yong,et al.Design of Hydraulic System with Load Sensing for Motor Grader[J].Hydraulics Pneumatics&Seals,2017,37(1):56-59.
[7]黄虎,陈光柱,蒋成林.全液压钻机负载敏感液压系统设计及仿真分析[J].液压与气动,2015,(3):71-74.HUANG Hu,CHEN Guangzhu,JIANG Chenglin.The Design and Simulation of Load Sensing Hydraulic System in Fully Hydraulic Driver Drill[J].Chinese Hydraulics&Pneumatics,2015,(3):71-74.
[8]沈国泉,王建嵘.基于负载敏感控制的垃圾桶清洗车液压系统研究[J].机床与液压,2017,45(4):139-141.SHEN Guoquan,WANG Jianrong.Hydraulic System of the Garbage Bin Cleaning Vehicle Based on Load Sensitive Control[J].Machine Tool&Hydraulics,2017,45(4):139-141.
[9]徐莉萍,南晓青,蔡留金.负载敏感多路阀测试系统研究[J].液压与气动,2016,(11):82-86.XU Liping,NAN Xiaoqing,CAI Liujin.Research on Loadsensitive Multi-way Valve Test System[J].Chinese Hydraulics&Pneumatics,2016,(11):82-86.
[10]林添良,黄伟平,任好玲,等.工程机械负载敏感型自动怠速系统[J].上海交通大学学报,2016,50(12):1929-1935.LIN Tianliang,HUANG Weiping,REN haoling,et al.Automatic Idle Speed Control of Load Sensing for Electricdriven Construction Machinery[J].Journal of Shanghai Jiaotong University,2016,50(12):1929-1935.
[11]宋飞,楼京俊,彭利坤.负载敏感液压系统的超压和气蚀问题研究[J].液压与气动,2017,(2):58-62.SONG Fei,LOU Jingjun,PENG Likun.Overpressure and Cavitation of Load-sensing Hydraulic System[J].Chinese Hydraulics&Pneumatics,2017,(2):58-62.
[12]臧华东,张建国.基于负载敏感控制的压差液压系统流量特性研究[J].机床与液压,2016,44(20):130-132,154.ZANG Huadong,ZHANG Jianguo.Research on Flow Characteristic of Differential Pressure Hydraulic System Based on Load Sensitive Control[J].Machine Tool&Hydraulics,2016,44(20):130-132,154.
[13]王晨升,苏芳,樊龙,等.基于AMESim的支架回撤吊车工作液压系统设计与仿真分析[J].液压与气动,2017,(7):60-66.WANG Chensheng,SU Fang,FAN Long,et al.Design and Simulation Based on AMESim for Hydraulic System of Shield Mule[J].Chinese Hydraulics&Pneumatics,2017,(7):60-66.