2BMG-24型小麦免耕播种机设计  

Design of 2BMG-24 No-till Wheat Planter

作　　者：刘立晶 杨学军[2] 李长荣[2] 刘昱程[2] 刘殿生[2] 

机构地区：[1]现代农装科技股份有限公司,北京100083 [2]中国农业机械化科学研究院,北京100083

出　　处：《农业机械学报》2009年第10期39-43,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金："十一五"国家科技支撑计划资助项目(2006BAD11A05-5)

摘　　要：在内蒙古、新疆等大型农场,随着大马力拖拉机的增加,中小型小麦免耕播种机已经不能满足动力发展的需要,限制了保护性耕作的推广实施,急需研究与大马力拖拉机配套的大型免耕播种机。本文设计了2BMG-24型小麦免耕播种机,采用控制式密齿型排种器、波纹圆盘和双圆盘组合式开沟施肥播种单体,实现了精少量排种、破茬开沟和种肥分施的小麦免耕播种。田间试验表明:播种深度合格率为91%;排种均匀性变异系数为28%;种子破损率为0.1%。初步田间试验表明该机作业性能与国外同类产品相当。Medium-small no-till wheat planter hasn＇t already satisfy power need with the development of high-power tractor in the Mongolia and Sinkiang large farms, which restricted the application of conservation tillage. Therefore, it is necessary to study the large no-till planter matching with highpower tractor. Adopted the controlled flume dense dentiform seed meter to perform precision metering, the 2BMG- 24 no-till wheat planter was designed. Furthermore, the wavy disc coulters were used to cut stubble for sowing, and the double disc cotilters were used to open furrow for fertilizing. The results of field test showed that the eligibility ratio of seed depth, the variance coefficient of metering equality and the seed damaged rate were 91%, 28 % and 0.1%, respectively. The operating performance of this machine was equal to that of the overseas machines. At the same time, the cost was much lower than them, reduced by 60% -70%. Its application can save 16 kg/hm2 fuels and increase 15% -20% incomes. Thus, the 2BMG-24 no-till wheat planter can meet with the need of large farms, which is an indispensable equipment for the development of the China conservation tillage.

关 键 词：小麦 免耕播种机 保护性耕作 排种器 圆盘开沟器 

分 类 号：S232[农业科学—农业机械化工程]