农业机械学报2024，Vol.55Issue(2)：50-59,10.DOI:10.6041/j.issn.1000-1298.2024.02.005
冷浸田起垄平整装置设计与试验
Design and Experiment of Ridging Leveling Device for Cold Waterlogged Paddy Field
摘要
Abstract
In view of the production requirements of ridge cultivation of rice and lack of related machinery and equipment in cold waterlogged paddy fields,low water and soil temperature and poor drainage,a ridging and leveling device suitable for cold waterlogged paddy field was developed.The device was mainly composed of a ridging roller,a micro-ridge opener and a leveling component to achieve large ridge drainage and micro-ridge water storage operations,which was conducive to cold waterlogged paddy field drainage and rice seed growth and development.According to the technical regulations of mechanical ridging rice cultivation in cold waterlogged paddy field,the key parameters of ridging roller,micro-ridge opener and leveling parts were designed.The radius of rotation of ridging roller was 560 mm,the chamfer of conical surface was 28°,the width of micro-ridge opener was 50 mm,the height was 40 mm and the adjustable angle of leveling parts was 5°.Based on the DEM-FEM coupling simulation analysis,the optimal operating parameters of the device were determined.When the forward speed of the machine was 0.6 m/s,the rotation speed of the rotary blade roller was 230 r/min,and the rotation speed of the ridge roller was 120 r/min,the soil backflow rate was 3.51％,and the stress and strain of the ridge roller were analyzed.The results of the field experiment showed that the average furrow depth was 160.03 mm,the width of top of furrow was 174.84 mm,the average width of top of ridge was 1 888.89 mm,the average flatness of box was 11.26 mm,the average width of micro-ridge was 60.16 mm,and the depth of furrow was 36.48 mm.All indicators met the requirements of mechanized ridge operation in cold-waterlogged fields.The research can provide a reference for the design of ridge leveling machine in cold waterlogged paddy field.关键词
冷浸田/种床制备/开沟起垄/仿形平整/DEM-FEM仿真Key words
cold waterlogged paddy field/seedbed preparation/rolling trenching/profiling leveling/DEM-FEM simulation分类
农业科技引用本文复制引用
张青松,蔡家顺,于良航,方震,廖庆喜,边祺旺,陈志凌..冷浸田起垄平整装置设计与试验[J].农业机械学报,2024,55(2):50-59,10.基金项目
国家重点研发计划项目(2021YFD1901204)和国家自然科学基金项目(32001427) （2021YFD1901204）
