稻茬地双轴驱动防堵式小麦免耕播种机

No-till Wheat Seeder with Two-axel Drive Anti-blocking in Rice Stubble Field

摘要:

针对稻茬地土壤粘重、根茬量大韧性强的特点和免耕播种作业的要求，基于旋转部件的铣切、冲击、破碎和抛撒原理，应用带状旋耕和粉碎技术，设计了稻茬地双轴驱动防堵式小麦免耕播种机，一次完成切茬、开沟、防堵、主动覆土和镇压等功能。田间播种性能试验表明，带状旋耕能较好地完成切茬、开沟作业，粉碎装置将收集到的土壤进行了有效的二次粉碎和抛撒，实现了均匀覆土的功能，播种深度和施肥深度变异系数分别为4.33%和2.73%，机具的通过性满足农艺要求。

Abstract:

In order to solve the serious problems of clay soil and large amount of rice stubble with strong toughness, a no-till wheat seeder with two-axel drive anti-blocking mechanism was designed to meet the requirements of no-till seeder. Based on the work principle of rotating parts, including milling, impacting, crushing and throwing, the seeder could accomplish stubble chopping, furrow opening, anti-blocking, active covering soil and compacting at one time with strip rotary tillage and crushing technology. The results of field seeding experiments showed that stubble cutting and furrowing could be well finished by strip rotary tillage. The collected soil was effectively chopped twice, so the soil could be well-covered. The variation coefficient of sowing depth and fertilizer depth were 4.33% and 2.73%, respectively. The passing ability of seeder satisfied the agronomic requirements. 