中国机械工程2017，Vol.28Issue(16)：1899-1905,1913,8.DOI:10.3969/j.issn.1004-132X.2017.16.002
装载机液力变矩器闭锁过程动态分析
Dynamic Analysis of Locking Processes of Loader Hydraulic Torque Converters
摘要
Abstract
In order to reduce the influences of vibration shocks caused by the locking processes of a hydraulic torque converter on the service life of the parts and to improve the locking quality,accord-ing to the working principles of loader locking clutchs of the torque converters,the lock up processes and binding parameters were analyzed,the locking oil filling hydraulic control system and oil filling control curve were designed,and the loader drive systems were simplified.Simultaneously,a mathe-matical model of the lock up processes was established.Based on the model,the simulations were car-ried out by using Simulink,the effects of locking filling time and filling pressures on dynamic locking processes were analyzed respectively.Results show that the blocking effectiveness is the best when the oil filling time is as 0.2 s,and the filling pressure is as 1.2 MPa.The correctness of designed oil filling control curves is proved and it achieves the purpose of reducing the dynamic loads during the locking processes and improving the vehicle motion stability,providing a reference for dynamic analysis of locking processes of other engineering vehicles.关键词
液力变矩器/闭锁过程/动态分析/控制曲线Key words
hydraulic torque converter/locking process/dynamic analysis/control curve分类
机械制造引用本文复制引用
惠记庄,程顺鹏,武琳琳,张金龙..装载机液力变矩器闭锁过程动态分析[J].中国机械工程,2017,28(16):1899-1905,1913,8.基金项目
国家科技支撑计划资助项目(2015BAF07B00) （2015BAF07B00）
陕西省自然科学基础研究计划资助项目(2015JM5216) （2015JM5216）
中央高校创新团队项目(310825153403) （310825153403）
