基于参数化设计的育苗杯制作机结构计算  

Structure Calculation of Nursery Cup Making Machine Based on Parametric Design

作　　者：王军[1] 汤晶宇[2] 汪旭涛 刘明刚[2] 

机构地区：[1]中国林业科学研究院研究生院,北京100091 [2]国家林业局哈尔滨林业机械研究所,哈尔滨150086 [3]大通期货经纪有限公司,哈尔滨150006

出　　处：《农机化研究》2016年第1期22-27,共6页Journal of Agricultural Mechanization Research

基　　金：中央级公益性科研院所基本科研业务费专项(CAFINT2012C06)

摘　　要：以2RBW-1500型育苗杯制作机为基础,分析其组成机构。采用NURBS曲线原理拟合焊接凸轮轮廓曲线,将得到的曲线控制点输入Solidworks编辑宏,从而精确设计凸轮廓线。同时,分析了六杆输入机构顶端滑块的位移、速度、加速度,并得到运动的数学方程式。基于Solid Works-motion平台上的运动分析,构建运动模型,得到焊接推杆及六杆机构滑块的位移、速度、加速度的时间曲线,并就曲线意义及某些特征点做了合理解释。最后,结合整个机械,分析运动的联动性,并在模型上印证结果,从而验证结构设计的合理性和正确性。Based on type of 2RBW- 1500 nursery cup making machine,analysis its consisting mechanism. Fit the welding cam contour curve by using NURBS curves theory,after that input the produced control point to Solidworks edit macros,and then the cam contour curve could be precisely designed. Analysis displacement velocity and acceleration of the top slider of six- bar input mechanism,the mathematical equations of movement could be got. Based on Solidworks-motion platform motion analysis,the motion model,the displacement,velocity and acceleration time curves of welding push rod,and slider of six- bar mechanism was obtained,then make reasonable explanation on the significance and some characteristic points of curve. Finally,Combined with the total machine,analysis movement of linkage,and prove the results on the model,interference did not exist between mechanisms; all these aspects verify the rationality and correctness of the design.

关 键 词：NURBS曲线 凸轮廓线 六杆机构 育苗杯 联动 

分 类 号：S223.1[农业科学—农业机械化工程]