摘要
以某高地隙自走式农用喷雾机的全液压转向系统为对象,针对其转向不灵活、转向半径过大的问题,设计出一种新颖的全液压四轮转向系统。根据喷雾机的总体设计要求确定转向器、转向动力缸、转向泵等液压元件的相关参数,然后基于AMEsim建立了转向系统机械-液压耦合模型,并在方向盘匀速慢转和匀速快转2种工况下进行了转向性能的动态特性仿真分析。仿真结果表明:该转向系统动态响应快、机动性能好,较好地满足了高地隙自走式农用喷雾机的作业要求。
According to the problem of the steering is not flexible and the steering radius is too large,the full hydraulic steering system of the highland clearance self-propelled agricultural sprayer was used as research object to design a new full hydraulic four-wheel steering system. The related parameters of the hydraulic components including steering,steering pump,power cylinder and so on were decided according to the requirement of general design of the sprayer,and then mechanical-hydraulic coupled modeling was designed for the steering system by AMEsim,to research on its steering performance dynamic characteristic,including slowly and fast turn the steering wheel under two uniform motion conditions. The results show that the fast dynamic response and good mobility well meet the operational requirements of the highland clearance self-propelled agricultural sprayer.
出处
《重庆理工大学学报（自然科学）》
CAS
2016年第11期65-70,共6页
Journal of Chongqing University of Technology：Natural Science
关键词
自走式喷雾机
全液压
四轮转向
机械-液压耦合建模
self-propelled agricultural sprayer
full hydraulic
four-wheel steering
mechanical-hydraulic coupling model
