农业机械学报2025，Vol.56Issue(5)：213-221,9.DOI:10.6041/j.issn.1000-1298.2025.05.020
板结羊草地折翼式松土铲优化设计与试验
Optimization Design and Experiment of Folded-wing Subsoiler for Compacted Leymus chinensis Grassland
摘要
Abstract
There is a lack of soil loosening components suitable for grassland ploughing.To better break the compacted structure of grassland soil,a special soil loosening component for grassland was designed:a folded-wing subsoiler.Optimization of the combination of structural parameters was carried out by using the shank slip angle,wing width and tip entry angle of a folded-wing subsoiler as test factors,and tillage resistance,furrow contour area and ridge contour area as target parameters.The working performance(ridge contour area,pit contour area,soil disturbance coefficient,soil bulkiness,turning rate,and surface flatness)of the folded-wing subsoiler and three traditional subsoilers(chisel point,diamond point,and arrow point)in grassland soil was compared.The test results showed that the optimal combination of the structural parameters of the folded-wing subsoiler was as follows:the wing width was 40 mm,the shank slip angle was 20°,and the tip entry angle was 20°.At this point,the optimal solution for the objective values was 6 140 N of tillage resistance,160 cm2 of pit contour area,68 cm2 of ridge contour area.Compared with the three traditional plough points,the surface of the grassland after the operation of the folded-wing subsoiler was more flat,and there were fewer turning pieces,and all of them were small pieces of soil;at the same operating speed,the pit contour area and soil disturbance coefficient caused by the folded-wing subsoiler were the largest,while the ridge contour area,soil bulkiness,turning rate and surface flatness were the smallest.Therefore,the grassland loosening performance of the folded-wing subsoiler was better than that of the traditional chisel point,diamond point,and arrow point.The research results can provide technical reference for the creation of key tillage components suitable for mechanized improvement of compacted grassland.关键词
草地改良/板结草地/折翼式松土铲/耕作阻力/土壤扰动Key words
grassland improvement/compacted grassland/folded-wing subsoiler/tillage resistance/soil disturbance分类
农业工程引用本文复制引用
张学宁,尤泳,王昭宇,张宇卓,廖洋洋,王得伟,王德成..板结羊草地折翼式松土铲优化设计与试验[J].农业机械学报,2025,56(5):213-221,9.基金项目
国家重点研发计划项目(2022YFD2001903)、中央高校基本科研业务费专项资金项目(15053349)和国家自然科学基金项目(32360073) （2022YFD2001903）
