中国农机化学报2026，Vol.47Issue(2)：39-47,9.DOI:10.13733/j.jcam.issn.2095-5553.2026.02.007
气力往复式三七排种器设计与仿真试验
Design and simulation test of pneumatic reciprocating panax pseudoginseng seed metering device
摘要
Abstract
Aiming at problems such as large mass,inconvenient handling,and complicated disassembly and repair of the existing seeding device,a pneumatic reciprocating panax pseudoginseng seed metering device was designed.This device is based on the working principle of negative pressure seed extraction and positive pressure seed feeding and completes the work through the reciprocating motion of the suction nozzle.In this paper,through the analysis of the reciprocating frequency analysis of the seed metering device,the calculation of seed filling conditions,and the analysis of seed force,the dimensions and working parameters of the critical components of the seed metering device are determined.With the help of EDEM software to simulate and analyze the diameter of the seed tube,the best diameter of the seed tube was 16 mm with the intensity of population disturbance as the test index,the CFD—DEM fluid-solid coupling method was used to analyze the insertion of the seed tube,and with the qualified rate of seed charging and the leakage rate as the test index,the final determination of the reach of the seed tube was 10 mm,which provides a theoretical reference for the optimization of the structure of the pneumatic reciprocating panax pseudoginseng seed metering device.关键词
三七育苗播种/气力往复式/颗粒离散元/流体动力学离散元Key words
panax pseudoginseng seedling sowing/pneumatic reciprocating seed metering device/EDEM/CFD—DEM分类
农业科技引用本文复制引用
Ren Zhongtao,Yang Wencai,Zhang Haidong,Li Guirong,Zheng Jiaxin,Zhang Xiaowei..气力往复式三七排种器设计与仿真试验[J].中国农机化学报,2026,47(2):39-47,9.基金项目
国家自然科学基金资助项目(32160425) （32160425）
云南省重大科技计划(202102AE090042-06-04) （202102AE090042-06-04）
