非圆齿轮—曲柄滑块压捆机构反求设计  

Reverse design of non-circular gear-crank slider hay baler mechanism

作　　者：雷昌毅[1] 陈建能[1] 李鹏鹏[1] 王英[1] 

机构地区：[1]浙江理工大学机械与自动控制学院,杭州310018

出　　处：《农业工程学报》2012年第13期22-27,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：浙江省自然科学基金(Y1110100);浙江省研究生创新科研项目(YK2010055)

摘　　要：为满足压捆机构的理想运动特性要求,该文提出了一种非圆齿轮—曲柄滑块式新型压捆机构,建立了该新型机构的运动学分析模型,并以理想速度曲线为目标反求得到了满足工作要求的非圆齿轮节曲线。通过实例计算比较,该新型机构与传统曲柄滑块式压捆机构相比,在一个工作循环中压缩时间增加30%,能实现小阻力阶段快速压缩、大阻力阶段则以恒定的低速压缩,且所需最大输入功率可降低28.6%。In order to meet the requirements of the ideal kinematics characteristic,a new non-circular gear-crank slider hay baler mechanism was proposed,the ideal kinematics characteristic of the hay baler was analyzed,and the equation of ideal speed curve was built in this paper.The dynamics model of this new mechanism was built to carry out the reverse design of the pitch curve of non-circular gear that could meet the working requirements for the purpose of getting the ideal speed curve.Compared with the traditional slider crank baler mechanism,through example calculation,compression time of the new mechanism increased by 30% in one working cycle,the new mechanism could compress rapidly in small resistance stage while at a constant low-speed in big resistance stage,and the maximum input power decreased by 28.6%.

关 键 词：农业机械 机构 反求 非圆齿轮 曲柄滑块 压捆机 

分 类 号：S223.9[农业科学—农业机械化工程]