深施型液态施肥机扎穴机构优化设

为实现液态施肥机高速作业,设计了一种结构简单、运动平稳的椭圆齿轮行星系作为液态施肥机的扎穴机构.对该机构进行运动学分析,建立了数学模型,以穴距200mm和入土深度120～150mm为寻优目标,应用Visual Basic 6.0软件编程得出满足机构运动要求的最优参数范围为:喷肥针尖和行星轮轴连线与行星架的初始夹角-45°～-40°、行星架初始角位移40°～50°、喷肥针尖与行星轮轴心距离280～300mm,此时椭圆齿轮长半轴29.364mm、齿数23、短半轴与长半轴比0.958,正圆齿轮半径25mm.从优化工作参数中选择一组参数设计扎穴机构,应用Pro/E软件进行仿真.结果表明,根据优化参数设计的扎穴机构能够满足穴距和入土深度的设计要求.

Design on Pricking Hole Mechanism of Deep-fertilization Liquid Fertilizer Applicator

In order to realize the high-speed work of liquid fertilizer applicator,the elliptic gear planetary galaxy as the pricking hole mechanism was designed,which presented the simple structure and steady movement.Then,the mathematical model for this mechanism was established.By Visual Basic 6.0 program,taken the distance between hole 200 mm and buried depth 120-150 mm as the optimization goal,the most optimum parameters range of the mechanism was obtained as follows:the initial angle between planet frame and the...