基于TRIZ理论的采茧机器人创新设计  

Innovative design of cocoon picking robot based on TRIZ theory

作　　者：王成军[1] 丁凡 Wang Chengjun;Ding Fan(School of Artificial Intelligence,Anhui University of Science and Technology,Huainan,232001,China;School of Mechanical Engineering,Anhui University of Science and Technology,Huainan,232001,China)

机构地区：[1]安徽理工大学人工智能学院,安徽淮南232001 [2]安徽理工大学机械工程学院,安徽淮南232001

出　　处：《中国农机化学报》2024年第2期244-249,共6页Journal of Chinese Agricultural Mechanization

基　　金：科学技术部创新方法工作专项(2018IM010500);安徽省新时代育人质量工程研究生学术创新项目(2022XSCX073);安徽理工大学研究生创新基金(2022CX2063)。

摘　　要：针对采茧机采茧质量差、效率低等问题,基于TRIZ理论设计一种采茧机器人。采用九屏幕分析法、组件分析法和因果轴分析法,得出采茧机效率低、质量差等问题的根本原因:存在下茧、适应性不足、顶杆维修效率低等;运用技术矛盾法、物理矛盾法和物—场模型法对采茧机存在的问题进行求解,创新设计执行器、姿态转换器、仿形压头及剔茧装置等关键部件,并结合实际工况完成采茧机器人的整机设计。利用有限元仿真软件,进行顶杆与仿形压头采茧试验,分析蚕茧的变形和动力学响应,结果表明:采用仿形压头采茧,蚕茧总变形最大值减少96%,等效应力最大值减少91.7%,等效弹性应变最大值减少88.2%。Aiming at the problems of poor quality and low efficiency of the cocoon picking machine,a cocoon picking robot was designed based on TRIZ theory.By using a nine-screen analysis method,component analysis method and causal axis analysis method,the root causes of low efficiency and poor quality of cocoon picking machine were obtained,such as the existence of cocoons,inadequate adaptability and low maintenance efficiency of the ejector rod.The technical contradiction method,physical contradiction method and object-field model analysis was used to solve the analyzed problems.The actuator,attitude converter,profile press and cocoon picking device and other key components were innovatively designed.Combined with the actual working conditions,the whole machine design of the cocoon picking robot was completed.The deformation and dynamic response of cocoons were analyzed by means of finite element simulation software.The results show that the maximum value of total deformation,equivalent stress and equivalent elastic strain of cocoons can be reduced by 96%,91.7%and 88.2%,respectively by using the copycat pressing head to pick cocoons.

关 键 词：采茧机器人 TRIZ理论 结构设计 有限元 

分 类 号：S887.33[农业科学—特种经济动物饲养]