水稻苗间除草装置工作机理分析  

Analysis on working mechanism of paddy weeding device

作　　者：牛春亮[1,2] 王金武[1] 

机构地区：[1]东北农业大学工程学院,哈尔滨150030 [2]大连海洋大学理学院,大连116023

出　　处：《农业工程学报》2010年第S1期51-55,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：黑龙江省科技厅重大攻关项目(GB07B106);哈尔滨市重大攻关项目(2009AA6CN126)

摘　　要：为了满足绿色环保大米生产需要,设计了一种水稻中耕苗间除草装置。对总体结构、关键部件的设计及工作原理进行了分析。选择秧苗插秧后第7d进行除草试验,秧苗行距为30cm,株距为14～16cm。采用二次旋转正交试验方法,利用Design-Expert软件进行数据处理与分析,获得了弹齿式苗间除草盘转速、机器前进速度、除草深度之间交互作用对除草率及伤秧率的影响。得到影响除草作业质量的指标主次因素和各因素的显著性水平。根据田间试验结果,插秧7d时除草装置的较优工作参数为:除草盘转速186r/min,机器前进速度为0.47m/s,除草深度为37mm,此时伤秧率为3.9%,除草率为75%。研究结果为整机的设计提供了可靠依据。To meet the needs of green rice production, a spring-tooth weeding installation which works between seeding lines in paddy field was designed, and the main structure and critical components were designed, and work principle was analysed. Test was carried out in the mechanical planting ground, the line spacing for seedlings was 30 cm, and the spaced in the rows was 14-16 cm. This paper used the 7th day test to discuss, under the help of Design-Expert software to analyze the experiment data, and the interaction effects of cutter rotation speed, forward velocity of the machine, weeding depth on weeding ratio and seeding injury ratio were attained. The primary and secondary factors of effecting weeding quality and the significance of each factors was obtained. Finally, The results showed that the optimum parameters in the 7th day test were: the cutter rotation speed was 186 r/min, the forward velocity was 0.47 m/s, the weeding depth was 37 mm, weeding rate was 75%, and miller injury rate was 3.9%. The results provides a reliable basis for the machine design .

关 键 词：农业机械 除草装置 设计 水稻 苗间除草 

分 类 号：S224.1[农业科学—农业机械化工程]