滴灌区玉米精量免耕播种机设计与试验

Design and experiment of corn precision no-till planter in drip irrigation area

【目的】研发作业可靠且适应新疆玉米种植模式的免耕播种机具。【方法】采用运动分析及结构设计方法,设计免耕播种机清茬机构、排种器及滴灌带铺设机构,并进行田间试验验证。【结果】机具前进速度在5 km/h时通过性良好,秸秆清理率达到79.44%,满足免耕播种作业要求;播种合格指数为91.33%,漏播指数为3.18%,重播指数为5.49%,播种均匀性满足行业标准。【结论】滴灌区玉米精量免耕播种机满足设计要求,可以有效清茬、播种及铺设滴灌带。

【Objective】In the hope of developing no-till seeding machines with reliable operation and adaptable to the cropping pattern in Xinjiang.【Methods】The no-till planter stubble clearing mechanism,seed rower and drip irrigation belt laying mechanism were designed by means of motion analysis and structural design,and field verification tests were conducted.【Results】The machine had good trafficability characteristic at the forward velocity of 5 km/h,and the stubble clearing rate reached 79.44%,meeting the requirements of no-till seeding operation;The seeding pass index was 91.33%,the missed seeding index was 3.18%,the reseeding index was 5.49%,and the seeding uniformity met the industry standard.【Conclusion】The corn precision no-till planter in drip irrigation area meets the design requirements and can effectively carry out stubble clearing,seeding and drip irrigation belt laying operations.