干旱区生态环境知识资源中心(Arid): 旱地垄作膜面胡麻精量播种机设计和仿真

Arid

	旱地垄作膜面胡麻精量播种机设计和仿真
其他题名	Design and simulation of precision seeder for flax in dryland ridge with plastic-film mulching
	周刚; 石林榕; 赵武云; 辛尚龙; 杨小平
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2019
卷号	37 期号:2 页码:245-252
中文摘要	针对西北旱区胡麻种植利用谷物条播机代播,人工种植效率低、质量差、出苗率低等问题,设计了一种旱地垄作膜面胡麻精量播种机。为提高播种机转向和运输时穴播轮提升、下降的精确性,采用平行四杆机构和摇杆装置,并确定其各项尺寸参数;为保证穴播轮播种深度,采用四连杆仿形机构,且计算出最大上、下仿形量均为89.87 mm,并验证了仿形机构的可行性;为提高该播种机播种精度,设计了一种新型取种装置;利用Solidworks软件中的插件motion对成穴器成穴过程进行运动仿真分析,研究了不同滑移率delta、机具前进速度v、成穴器入土深度h1对穴孔宽度(固定鸭嘴入出土位移)的影响,并得到最优组合参数:当delta = 11%,v = 0.5 m·s~(-1),h_1 = 0.03 m时,该成穴器具有较小的滑移量,且不易产生挑膜、撕膜等现象。
英文摘要	In order to solve the problems of low seeding efficiency,poor quality,and low seedling rate of the existing grain drilling machine and artificial seeding for flax,a precision seeder in dryland ridge plastic-film mulched surface in arid area of northwestern China was designed. To ensure the accuracy of the lifting and descending of the dibbling wheel during the diversion and transportation of the seeder,the parallelogram linkage mechanism and the rocker device were adopted,and the parameters of the mechanism were determined. The four-bar link profiling mechanism was adopted to improve the depth consistency of the dibbling wheel,and the maximum and lower profile amount was determined to be 89.87 mm,to verify the feasibility of profiling. In order to improve the seeding precision of the seeder,a new seed metering device was designed. The motion of plug-in in Solidworks was used to simulate the process of hole-forming and the effects of different slip rate ( delta) ,machine advancing speed ( v) and the depth of the indenting tool ( h1 ) on width of hole ( displacement of fixed duck-bill) were studied. The optimal results are obtained: when delta = 11%,v = 0.5 m·s~(-1),and h_1 = 0.03 m,the slipping of the indenting tool was small, and it was not easy to produce the film-picking and tearing-film.
中文关键词	精量播种机 ; 胡麻 ; 垄作 ; 机构参数 ; 成穴器
英文关键词	precision seeder flax ridge mechanism parameter indenting tool
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:6483961
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239096
作者单位	甘肃农业大学机电工程学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	周刚,石林榕,赵武云,等. 旱地垄作膜面胡麻精量播种机设计和仿真[J]. 甘肃农业大学,2019,37(2):245-252.
APA	周刚,石林榕,赵武云,辛尚龙,&杨小平.(2019).旱地垄作膜面胡麻精量播种机设计和仿真.干旱地区农业研究,37(2),245-252.
MLA	周刚,et al."旱地垄作膜面胡麻精量播种机设计和仿真".干旱地区农业研究 37.2(2019):245-252.