上海市前进农场农机厂研制的2BD-14型水稻芽谷播种机,与中型轮式拖拉机配套,一次可完成开沟、作畦、播种和塌谷4道工序。该机解决了长芽头水稻种易被机械损伤谷芽的关键技术难题。 1.播种机的构造及工作原理 2BD-14型水稻芽谷播种机由种子箱、排种机构、地轮、开沟器、塌谷机构、挡泥板、基板和悬挂系统等工作部件构成,见图。播种机悬挂在拖拉机上,机组进入作业田块后,落下播种机,并调整中央拉杆,基板与地面保持10°～15°的前倾角,以防止播种机前积土带草。播种机的基 2BD-14 rice sprouts seeder developed by Shanghai Advanced Farm Farm Machinery Factory is equipped with medium-sized wheeled tractor to finish the four processes of ditching, sowing, sowing and tilling. The machine solves the key technical problems that the long-spike head rice is easily damaged by mechanical damage. 1. Structure and working principle of planter 2BD-14 type rice bud planter is composed of working parts such as seed box, seed row mechanism, ground wheel, opener, collapse mechanism, fender, base plate and suspension system, See figure. The seeder hangs on the tractor. After the unit enters the work field, the planter is dropped and the central pull rod is adjusted. The base plate maintains an anteversion angle of 10 ° ~ 15 ° with the ground, so as to prevent the grass from sodding in front of the seeder. Seeder base