摘要
针对膜上播种需求,设计了一种新型曲柄滑块机构驱动平行四杆机构直插式播种装置,该装置结构简单,能够实现播种时成穴器"零速"播种,不易挑膜、撕膜。以成穴器相对于机架x方向的速度差v、排种管入出土后水平位移差s为优化目标,在Solidworks Motion中进行了该装置结构优化仿真。得到结果为:当以0.5 m·s^(-1)为前进速度时,曲柄Ⅱ长度69 mm、连杆长度167 mm、曲柄机构转速100 r·min^(-1)的播种装置能得到较好的直插播种性能。
To meet the demand of seeding on film,a new type of direct-eeding device,with a parallel four-bar mechanism driven by crank slider mechanism,was designed. Due to its simple structure and high precision,the device could achieve 'zero speed'sowing of hole-forming device. Aiming at the optimization of the speed difference v of the hole forming device with respect to the x direction of the frame,and the horizontal displacement difference s between buried and the pipe line,the structure of the device was optimized in Solidworks Motion. It was found that when using 0. 5 m·s^(-1)as the forward speed,the length of the crank II and the length of connecting rod were 69 mm and 167 mm respectively,and the speed of crank was 100 r·min^(-1). Thus the optimal direct seeding performance could be achieved.
出处
《干旱地区农业研究》
CSCD
北大核心
2017年第2期278-281,共4页
Agricultural Research in the Arid Areas
基金
甘肃省科技重大专项计划资助项目(143NKDF016)
国家自然科学基金资助项目(51405086)
"十二五"国家科技支撑计划项目(2013BAD08B01)
关键词
直插式
玉米播种装置
仿真优化
direct insert
furrow seeder of com
simulation optimization
