采棉机摘锭控形控性分析
Analysis on Shape Control of Cotton Picking Machine
刘海初 1王兴昌 1余松林 2刘寒寒2
作者信息
- 1. 新疆工程学院机电工程学院,新疆乌鲁木齐 830023
- 2. 新疆工程学院工程技能实训学院,新疆乌鲁木齐 830023
- 折叠
摘要
对采棉机摘锭的工作过程进行分析,通过数学建模确定采棉和脱棉过程中摘锭钩齿几何参数对籽棉所受摘锭摩擦力的影响;在籽棉缠绕阶段,对摘锭与籽棉间弹塑性摩擦受力进行分析,建立摘锭锥面截面圆曲率半径与籽棉受摘锭摩擦力的数学关系;将摘锭简化成悬臂梁,建立力学模型确定强度最低锥面截面直径与摘锭锥面几何参数的数学关系;采用ANSYS对3种常见基材摘锭进行有限元分析,进一步确定不同材料对摘锭强度的影响,验证锥面曲率半径对籽棉采摘摩擦力的影响.研究结果为国产摘锭进一步控形控性多目标优化设计奠定理论基础.
Abstract
The paper analyzes the working process of picking cotton machine and determines the influence of geometric parameters of picking hook teeth on the picking friction of seed cotton through mathematical modeling.In the stage of seed cotton winding,the elastic-plastic friction force between the picking spindle and the seed cotton is analyzed,and the mathematical relationship between the radius of curvature of the cone section of the picking spindle and the friction force between the seed cotton and the picking spindle is established.The stripping is simplified as a cantilever beam to build a mechanical model for determining the mathematical relationship between the section diameter of the lowest strength cone and the geometric parameters of the stripping cone.With ANSYS,finite element analysis on three common base materials is conducted to further define the influence of different materials on the stripping strength and verify the influence of cone curvature radius on the picking friction of seed cotton.The research results lay a theoretical foundation for further shape control and multi-objective optimization design of made-in-China spindles.
关键词
摘锭/籽棉/钩齿/摩擦力/摘锭锥面Key words
picking ingots/unginned cotton/crochet/friction/spindle cone引用本文复制引用
基金项目
国家级创新训练项目(202210990017)
出版年
2024
国家科技期刊平台
NSTL
万方数据