基于ADAMS的方捆机搂草装置优化与动力学分析  

Optimization and Dynamics Analysis of Straw-raking Device in Field Baler Based on ADAMS

作　　者：尹建军[1] 林加庆 李耀明[1] 马朝兴[1] 

机构地区：[1]江苏大学现代农业装备与技术省部共建教育部重点实验室/江苏省重点实验室,江苏省镇江市12013

出　　处：《农业装备与车辆工程》2012年第11期1-5,共5页Agricultural Equipment & Vehicle Engineering

基　　金：江苏省科技支撑计划(农业)项目资助(BE2011403)

摘　　要：针对方捆机搂草机构在秸秆输送过程中存在盲区堆堵和横向振动大的问题,采用SolidWorks建立方捆机搂草机构的3D装配模型,导入ADAMS软件后进行搂草机构的运动特性分析与动力学仿真,揭示在搂草阻力作用下搂草机构的实际运行过程,得到了搂草爪末端的轨迹空间分布、搂草机构和压缩机构的运动时序,分析了运动副作用力对机架横向振动的影响。根据搂草机构的工作要求,设计并优化了搂草爪的错位组合结构和喂入室拐角曲面过渡板,试验发现堆堵的情况得到了有效的改善。搂草机构的动作试验表明,搂草机构的仿真模型正确,分析结果可以指导搂草机构的改进设计,为降低秸秆在喂入室拐角残留和减小机器的横向振动提供一定的理论参考。Aiming at the problem of blocking of the dead zone and heavy lateral vibration in the process of delivering straws when straw-raking mechanism of field baler works, 3-D assemble model of straw-raking mechanism is firstly built up by using SolidWorks software, and imported to ADAMS software for its kinematics analyses and dynamics simulatiorL The actual operation process of straw-raking mechanism under straw-raking resistance is revealed. The spatial path distribution of straw-raking claws and motion sequence between straw-raking mechanism and compression mechanism are obtained. The influence of kinematic pair forces on lat- eral vibration of baler＇s frame is analyzed. According to working requirements of straw-raking mechanism, the composite dislocation unit of straw-raking claws and the curved plate at the comer of feed room are designed and optimized respectively, which reduce ef- fectively the occurrence of blocking at the comer of feed room. Motion test of the straw-raking mechanism showed that the simulation model is accurate, and the analysis results can guide improvement design of the straw-raking mechanism. They can provide some theoretical references for reducing the residual straw at the comer of feed room and decreasing the lateral vibration of the baler.

关 键 词：方捆机 搂草机构 动力学 ADAMS 

分 类 号：S225.23[农业科学—农业机械化工程]