农机化研究2026，Vol.48Issue(2)：28-38,11.DOI:10.13427/j.issn.1003-188X.2026.02.004
基于气力振动采摘长绒棉的辅助振动装置设计与试验
Design and Test of Auxiliary Vibration Device Based on Pneumatic Vibration Picking Sea Island Cotton
摘要
Abstract
In order to solve the problem of mechanized picking of sea island cotton,a crank slider auxiliary vibration structure was designed based on the pneumatic picking method of sea island cotton.The picking efficiency of pneumatic picking of sea island cotton was improved by weakening and destroying the binding force between seed cotton and boll shell by vibrating cotton plant.The vibration model of sea island cotton crank slider was established,and the vibration differen-tial equation of sea island cotton-crank slider was obtained.The single pendulum model of seed cotton movement was es-tablished,and the force analysis of seed cotton after vibration was carried out.The results showed that the vibration could reduce the binding force between seed cotton and boll shell.After the morphological measurement and material parameters determination of sea island cotton plants,a three-dimensional model was established based on SolidWorks.The modal a-nalysis of sea island cotton plants was carried out by using the finite element analysis software ANSYS,and the natural vi-bration characteristics of sea island cotton plants were obtained.The vibration response test platform was built,and the sweep frequency and sinusoidal excitation tests were carried out on the sea island cotton plants.The verification was con-sistent with the simulation results,and the optimal excitation frequency of the sea island cotton was determined.The dy-namic analysis of the auxiliary vibration structure was carried out,and the auxiliary vibration module was trial-produced.The vibration test of the sea island cotton plant was carried ou,and the results showed that the first 20 natural frequencies of the sea island cotton plant were 6.13-81.18 Hz,and the optimal excitation frequency was 28 Hz.The maximum crank torque of the auxiliary vibration device was 4.47 Nm,and the maximum acceleration of the vibrating rod working stroke was 691 m/s2.The vibration device could effectively shed seed cotton.The research results provided a reference for the research and development of pneumatic vibration picking sea island cotton.关键词
长绒棉采摘/振动辅助/气力振动/仿真分析Key words
sea island cotton picking/vibration assistance/pneumatic vibration/simulation analysis分类
农业科技引用本文复制引用
马怡翔,胡国玉,张伟杰,林哲,古丽巴哈尔·托乎提..基于气力振动采摘长绒棉的辅助振动装置设计与试验[J].农机化研究,2026,48(2):28-38,11.基金项目
新疆维吾尔自治区自然科学基金面上项目(2023D01C15) （2023D01C15）
国家自然科学基金地区科学基金项目(12162031) （12162031）
