基于三角测量的菠萝外轮廓测量装置设计  

Design of pineapple outer contour measurement device based on triangulation

作　　者：李莹[1] 董耀 王凯彬 何自芬[1] 袁浩 LI Ying;DONG Yao;WANG Kaibin;HE Zifen;YUAN Hao(Faculty of Mechanical and Electrical Engineering,Kunming University of Technology,Kunming,Yunnan 650500,China)

机构地区：[1]昆明理工大学机电工程学院,云南昆明650500

出　　处：《食品与机械》2024年第9期84-91,共8页Food and Machinery

基　　金：国家自然科学基金项目(编号:62171206)。

摘　　要：[目的]解决菠萝自动化削皮机加工过程中菠萝尺寸不易获取,缺乏加工数据的问题。[方法]采用柱面坐标系描述菠萝表面点位置坐标,结合接触式测量方式和三角测量方法计算所需参数,设计出菠萝外轮廓测量机构的总体方案,用ANSYS对测量杆进行静力和屈曲分析,并搭建实验台进行验证实验。[结果]测量杆在测量过程中承受的最大应力为32.463 MPa,最大变形量为0.21 mm,满足结构刚度要求;测量试验的最大误差为1.8 mm,能控制在1%以内,平均测量时间分别为31.6,35.2 s。[结论]试验装置的测量精度和时间能够满足菠萝实际生产加工的需要。[Objective]To solve the problem that pineapple dimensions are not easy to obtain and lack of processing data during the processing of pineapple automated peeling machine.[Methods]The cylindrical coordinate system was used to describe the positional coordinates of the pineapple surface points,the required parameters were calculated by combining the contact measuring method and triangulation method,the overall scheme of the pineapple outer contour measuring mechanism was designed,the static force and buckling analysis of the measuring rod was carried out by ANSYS,and the experimental bench was built to carry out the verification experiments.[Results]the maximum stress of the measuring rod during the measurement process was 32.463 MPa,and the maximum deformation was 0.21 mm,which meets the requirements of structural rigidity;The maximum error of the measurement test was 1.8 mm,which could be controlled within 1%,and the average measurement time was 31.6 and 35.2 s.[Conclusion]The measurement accuracy and time of the experimental setup can satisfy the needs of the pineapple's actual production and processing.

关 键 词：三角测量 结构设计 菠萝 静力学分析 屈曲分析 

分 类 号：TS255.35[轻工技术与工程—农产品加工及贮藏工程]