摘要
水田犁田间作业时土壤对犁壁的严重粘附，将导致犁耕阻力增加、油耗增大、耕作质量和生产效率降低。经过大量的试验研究，已发现典型土壤动物蜣螂体表的减粘降阻和脱附效应，并据此开发了仿生犁壁。在前期研究基础上，考察仿生非光滑水田犁壁面上几何非光滑结构单元的尺寸和分布对犁耕阻力的影响，进行了设计参数优化，研制出具有减粘降阻性能的仿生非光滑水田犁壁。田间对比测试表明：仿生非光滑水田犁壁与普通光滑水田犁壁相比，降低犁耕阻力15．9％-18．0％，减少油耗11．9％，提高生产率20．5％。该犁壁耕翻的碎垡率高，耕作质量良好，有较好的实际应用前景。
Soil adhesion which exists between soil and plow moldboard in the field work of paddy field plough , not only increases the working resistance and energy consumption of these machines , but also decreases the quality of work and the productivity .It was found that the non-smooth surfaces of the typical soil animal-dung beetle had the characteristics of anti-adhesion , anti-resistance and desorption by lots of tests and observations .Based on these researchers , bionic non-smooth plow moldboards were developed .In this paper , we analyzed the plowing resistance impact of dimention and distribution of bionic non-smooth structural units , then optimized parameters （ dimention and distribution ） , developed bionic non-smooth paddy field plow moldboard that had better properties of anti-adhesion and anti-resistance .The plo-wing resistances , oil consumption and plowing productivity of bionic plow and common plow were tested in paddy field . The results showed that, compared with common smooth plough, the bionic plow moldboard could reduce plowing resistance to 15.9%-18.0%, could save the fuel consumption to 11.9%, and could raise the plowing productivity to 20 .5%.Meanwhile , the bionic non-smooth plow , not only with the advantages of soil-turning , but also has highly effi-ciency of clod crushing and has a good application prospect .
出处
《农机化研究》
北大核心
2015年第12期160-165,共6页
Journal of Agricultural Mechanization Research
基金
国家自然科学基金项目(51375199)
关键词
水田犁
犁壁
仿生非光滑
犁耕阻力
paddy field plow
plow moldboard
bionic non-smooth
plowing resistance
