偏心振动压实式筑埂机的仿真分析及试验  

Simulation Analysis and Experiment of Eccentric Vibration Compaction Ridge Building Machine

作　　者：刘明勇[1,2] 蔡昊 胡成龙 谢柏林 Liu Mingyong;Cai Hao;Hu Chenglong;Xie Bolin(Hubei University of Technology,Wuhan 430068,China;Hubei Agricultural Machinery Engineering Research and Design Institute,Wuhan 430068,China)

机构地区：[1]湖北工业大学,武汉430068 [2]湖北省农业机械工程研究设计院,武汉430068

出　　处：《农机化研究》2023年第2期21-28,共8页Journal of Agricultural Mechanization Research

基　　金：国家重点研发计划项目(2017YFD0701105-03,2018YFD0700604,2018YFD0301303)。

摘　　要：简要描述了偏心振动压实式筑埂机的工作原理,对振动压实装置的运动轨迹进行了理论推导;运用Adams仿真软件对镇压筑埂装置作业时的振动状态进行分析,重点模拟了偏心振动压实装置中偏心块的质量、中心轴转速对镇压筑埂装置的振动影响;通过将Adams与Edem仿真软件耦合,对偏心振动压实式筑埂机的镇压筑埂情况进行了仿真;最后,通过整机试验对以上分析进一步验证并得出结论。研究结果表明:筑埂机在偏心质量为20kg、中心轴转速为1r/s、前进速度为0.1m/s时,偏心振动压实装置的工作振幅为38mm,中心轴最大加速度为800m/s^(2),此工况下镇压滚筒筑埂时振幅较大,适用于在首次筑埂时对旋耕集土后的松散土堆进行一次镇压成型;当偏心块质量为5kg、中心轴转速为4r/s、前进速度为0.4m/s时,工作振幅为8mm,中心轴加速度为1200m/s^(2),振幅较小、离心力较大,此工况适用于土埂成型后的二次压实固埂。仿真分析表明:不加偏心振动的普通筑埂机在作业时,滚筒所受的正压力为2000N;加振动压实后的一次筑埂时正压力约2500N,二次固埂时正压力约3000N,相比与传统筑埂机压实效果提升较大。田间试验表明:无偏心振动时所筑田埂坚实度为2064kPa,加振动压实后的一次筑埂坚实度为2356kPa,一次筑埂与二次固埂结合的方式坚实度为2798kPa,坚实度提升较大。This paper describes the working principle of eccentric vibration compaction type ridge building machine,and theoretically deduces the motion track of the vibrating compaction device.The vibration state of the device is analyzed by ADAMS simulation software,and the effect of the quality of eccentric block and the speed of the central axis on the vibration of the device is simulated emphatically.Through the analysis of the vibration track of the vibration compaction device The simulation results of the compression of eccentric vibration compaction ridge machine are carried out by coupling Adams and edem simulation software.Finally,the above analysis is further verified and concluded through the whole machine test.When the eccentric mass is 20 kg,the center axis speed is 1 r/s and the forward speed is 0.1 m/s,The working amplitude of eccentric vibration compaction device is 38 mm and the maximum acceleration is 800 m/s^(2).Under this condition,the amplitude of roller ridge building is larger,which is suitable for the first time to suppress the loose soil pile after the rotary ploughing and collecting soil.When the mass of eccentric block is 5 kg,the speed of central axis is 4 r/s and the forward speed is 0.4 m/s,the working amplitude is 8 mm,the acceleration is 1200 m/s^(2),and its amplitude is small and the centrifugal force is large.This condition is suitable for the secondary compaction and consolidation of the embankment after the formation of the ridge.The results of the simulation and test show that the normal ridge building machine without eccentric vibration is 2000 N when it is operated.The positive pressure of the roller is about 2500 N when the primary ridge is built after the vibration compaction and 3000 N when the secondary ridge is fixed.Compared with the traditional ridge machine,the compaction effect is improved greatly;the field test shows that the normal ridge building machine without eccentric vibration is higher than the traditional ridge builder;the field test shows that the normal ridge build

关 键 词：筑埂机 偏心 振动 压实式 仿真分析 

分 类 号：S222.53[农业科学—农业机械化工程]