QSC-2型步进式水稻除草机的设计与试验  

Design and Test of QSC-2 Marching Type Paddy Weeder

作　　者：梁仲维[1] 齐龙[1,2] 马旭[1,2] 邝建霞 林超辉 鹿芳媛 

机构地区：[1]华南农业大学工程学院,广州510642 [2]华南农业大学南方农业机械与装备关键技术教育部重点实验,广州510642

出　　处：《农机化研究》2015年第8期115-119,共5页Journal of Agricultural Mechanization Research

基　　金：广州市珠江科技新星专项(2014J2200041);现代农业产业技术体系建设专项(CARS-01-33);广东省教育厅科研项目(2013KJCX0034);南方稻田多熟制现代化生产协同创新项目(2014)

摘　　要：为解决水稻田草害问题并减少除草剂施用对环境的影响,研制了QSC-2型步进式水稻除草机。该机由汽油发动机提供动力,利用蜗轮蜗杆传动系统进行减速和传动,通过一对除草轮耙压、抛送土壤进行除草作业。田间试验结果表明:随着机具前进速度的增加,除草率下降,伤苗率上升;随着除草轮转速的增大,除草率和伤苗率均上升;综合除草率和伤苗率指标考量,除草机在前进速度为0.6m/s、除草轮旋转速度为120r/min时,除草作业质量较好;除草机除草率平均值为85.9%,伤苗率平均值为4.4%,满足水稻田除草的作业质量要求。In order to solve the problems of weed in paddy field and reduce the residual of herbicide, the marching type paddy weeder—QSC-2 was developed in this research.The power of the weeder was provided by a gasoline engine, the worm and gear reduction system was utilized to drive a pair of weeding roll designed to operate the weeding process by＆amp;nbsp;pressing and hurling the soil.The weeder of QSC-2 is small, light and portable to be lifted to stride over the crops row, which is suitable for the rice cultivation condition in China.The result of field test of QSC-2 showed that： the weeding rate decreased and the damage rate of paddy seedling increased with the increasing marching velocity of the weeder;the weeding rate increased and the damage rate of paddy seedling increased with the increasing rotational velocity of the wee-ding roll;the optimal performance of the weeder is obtained when the marching velocity is 0 .6 m/s and the rotational ve-locity is 120 r/min.with the overall consideration of the weeding rate and the damage rate in the field trail , the average weedingrate of the weeder is 85.9% while the damage rate is 4.4%, which satisfies the require of weeding in paddy field.

关 键 词：水稻除草机 步进式 试验 有限元仿真 

分 类 号：S224.14[农业科学—农业机械化工程]