立体车库过放液压缓冲系统研究
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摘要
提出并设计了立体车库过放液压缓冲系统,选型计算了系统关键元件参数,基于AMESim搭建了过放液压缓冲系统仿真模型,得到了载车板速度位移和缓冲缸压缩腔压力流量动态性能曲线,分别研究了不同溢流阀弹簧预压缩量和刚度对缓冲缸压缩腔及载车板位移的影响。仿真结果表明:该系统能有效吸收载车板过放能量;在不发生撞缸的条件下,减小溢流阀弹簧刚度和预压缩量有助于降低缓冲缸压缩腔压力冲击和提高缓冲缸吸能量。
An over discharge hydraulic buffer system of stereo garage is provided and designed. The key component parameters of system are calculated and selected. Based on AMESim,a simulation model of over discharge hydraulic buffer system is built. The dynamic performance curves of speed and displacement of car carrier and pressure flow of buffer cylinder are obtained. The influence of spring pre-compression and stiffness of different relief valves on compression chamber and displacement of car carrier is studied. The simulation results show that: the system can effectively absorb energy of over discharge; in condition that no buffer cylinder collision occurs,reducing spring stiffness and pre-compression of relief valve can help to reduce pressure impact of compression chamber and improve energy absorption of buffer cylinder.
An over discharge hydraulic buffer system of stereo garage is provided and designed. The key component parameters of system are calculated and selected. Based on AMESim,a simulation model of over discharge hydraulic buffer system is built. The dynamic performance curves of speed and displacement of car carrier and pressure flow of buffer cylinder are obtained. The influence of spring pre-compression and stiffness of different relief valves on compression chamber and displacement of car carrier is studied. The simulation results show that: the system can effectively absorb energy of over discharge; in condition that no buffer cylinder collision occurs,reducing spring stiffness and pre-compression of relief valve can help to reduce pressure impact of compression chamber and improve energy absorption of buffer cylinder.
引文
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[4]王猛.山洞式立体停车库的研究[D].重庆:重庆交通大学,2014.WANG Meng.Research on Cave Type Parking Equipment[J].Chongqing:Chongqing Jiaotong University,2014.
[5]刘琳丽,杜明明,季雨停,等.立体车库的分类及展望[J].南方农机,2017,48(10):127-127.LIU Linli,DU Mingming.JI Yuting,et al.Classification and Prospect of Stereoscopic Garage[J].South Agricultural Machinery,2017,48(10):127-127.
[6]李文华,张圣孝.立体车库提升系统过卷保护研究[J].测控技术,2017,36(5):124-127.LI Wenhua,ZHANG Shengxiao.Study on Overwinding Protection of Stereo Garage Lifting System[J].Measurement&Control Technology,2017,36(5):124-127.
[7]何亮.老矿井中防过放缓冲装置及缓冲梁的实现[J].煤炭与化工,2016,39(2):104-105.HE Liang.In the Old Mine Discharge Buffer Device and the Realization of the Anticollision Beam[J].Coal and Chemical Industry,2016,39(2):104-105.
[8]高喜玲,张纬,秦强.矿井提升系统阻尼式过放缓冲装置的研究[J].矿山机械,2011,39(11):32-35.GAO Xiling,ZHANG Wei,QIN Qiang.Study on Damping Overfall Buffer Used in Mine Hoisting Systems[J].Mining&Processing Equipment,2011,39(11):32-35.
[9]朱真才,洪涛.BS型防过放缓冲装置工业性试验及其性能评价[J].矿山机械,1997,(6):29-30.ZHU Zhencai,HONG Tao.Industrial Test and Performance Evaluation of BS Type Anti Release Buffer[J].Mining&Processing Equipment,1997,(6):29-30.
[10]毋虎城,吴中青,张纬,等.矿井防过放液压缓冲装置的研究与设计[J].中州煤炭,2005,(2):6-7.WU Hucheng,WU Zhongqing,ZHANG Wei,et al.Research and Design of Hydraulic Buffer Device for Mine Prevention and Discharge[J].Zhongzhou Coal,2005,(2):6-7.