基于恒压蓄能器非对称缸能量回收及强度校核  

Energy recovery and strength check of asymmetrical cylinder based on constant pressure accumulator

作　　者：荆忠亮 宁志强 卫立新[1,2] JING Zhongliang;NING Zhiqiang;WEI Lixin(School of Department of Mechanical Engineering,Shanxi Institute of Technology,Yangquan 045000,Shanxi,China;College of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,Shanxi,China)

机构地区：[1]山西工程技术学院机械工程系,山西阳泉045000 [2]太原科技大学机械工程学院,山西太原030024

出　　处：《中国工程机械学报》2024年第4期452-457,共6页Chinese Journal of Construction Machinery

基　　金：山西省高等学校大学生创新创业训练计划项目(202314527001);阳泉市科技研发项目(2022JH052)。

摘　　要：针对非对称缸工作装置在下降过程中存在较大的节流损耗问题,采用普通的蓄能器进行回收可以减小系统发热,但是当蓄能器内外压差小时,能量充放效果差,影响作业性能。因此,提出采用恒压蓄能器对非对称缸能量回收系统进行回收与利用,并对所提出的恒压蓄能器隔膜进行强度校核。首先,在Simulation X液压仿真软件中,搭建非对称泵驱动的非对称缸工作装置进行基于恒压蓄能器的能量回收系统仿真;然后,采用基于粒子群算法的并行优化设计方法,对影响回收效率的恒压蓄能器参数进行参数匹配,以提高能量回收效率;最后,对所提出的恒压蓄能器的隔膜进行强度校核与可行性分析。仿真研究结果表明:采用优化后的恒压蓄能器参数进行能量回收的方案,充放压力效果恒定,系统能量回收率达到18.9%。同时所提出的新隔膜方案满足设计强度要求,可为后续的恒压蓄能器的试制提供参考依据。In view of the large throttling loss of the asymmetric cylinder working device in the process of falling,the use of ordinary accumulator for recovery can reduce the heating of the system.However,when the internal and external pressure difference of the accumulator is small,the energy charging and discharging effect is poor,which affects the operating performance.Therefore,it is proposed to use constant pressure accumulator for recovery and utilization of the asymmetric cylinder energy recovery system.The strength of the diaphragm of the proposed constant pressure accumulator is checked.Firstly,an asymmetric cylinder working device driven by an asymmetric pump is built in Simulation X hydraulic simulation software to simulate the energy recovery system based on the constant pressure accumulator.Then,the parallel optimization design method based on particle swarm optimization algorithm is used to match the parameters of the constant pressure accumulator which affect the recovery efficiency,so as to improve the energy recovery efficiency.Finally,the strength check and feasibility analysis of the diaphragm of the proposed constant pressure accumulator are carried out.The simulation results show that the energy recovery scheme using the optimized constant pressure accumulator parameters has a constant charging and discharging pressure effect,and the energy recovery rate of the system reaches 18.9%.At the same time,the proposed new diaphragm scheme can meet the design strength requirements.It provides a reference for the subsequent trial production of constant pressure accumulator.

关 键 词：恒压蓄能器 能量回收 参数匹配 强度校核 

分 类 号：TH137[机械工程—机械制造及自动化]