水田高茬秸秆还田耕整机设计与试验"

Design and Experiment of Cultivator for High Straw Returning in Paddy Field

设计了一种双轴水田秸秆还田耕整机。阐述了该机工作原理及其总体结构设计,并进行田间试验检测其性能。田间试验结果表明,该机可一次性实现水田高茬秸秆的埋覆还田、旋耕碎土、平整地表等多项功能,耕深158.7 mm,耕深稳定性为84.86%,秸秆埋覆率94.19%,耕后地表平整度25 mm,生产率0.87 hm2/h,能够满足水稻播栽对耕整地的农艺要求。

A cultivator which can achieve the purpose of high straw returning by rotary tillage with double roller was designed. The overall structural design and working principle of the cultivator were introduced. The field tests were conducted in order to examine its operating performance. The results of field tests indicated that the cultivator could realize multiple functions at the same time, such as the high straw mulching and returning, soil crashing, and surface leveling. The working qualities of cultivator which met the agrotechnical requirement of rice sowing and transplanting were as follows： the tillage depth of 158.7 mm, the stability of tillage depth of 84.86% , the straw coverage rate of 94. 19% , the surface roughness after rotary tillage of 25 mm, and the productivity of 0. 87 hm2/h.