一种木薯收获机仿生挖掘铲的设计方法  

The Design of Bionic Digging Shovel for Cassava Harvesting

作　　者：益爱丽 廖宇兰[1] 吕凯英 熊佳 Yi Aili;Liao Yulan;Lv Kaiying;Xiong Jia(College of Machinery and Electric, Hainan University, Haikou 570100, China)

机构地区：[1]海南大学机电工程学院,海口570100

出　　处：《农机化研究》2018年第10期63-68,共6页Journal of Agricultural Mechanization Research

基　　金：国家自然科学基金项目(51365011)

摘　　要：针对的木薯挖掘铲存在的碎土困难、挖掘铲质量大及铲尖磨损严重等问题,基于仿生学原理,提出了一种模仿狗前爪结构的仿生木薯挖掘铲。首先,利用高倍率扫描仪对狗前爪下轮廓结构进行扫描提取,利用数据处理软件获取下轮廓结构的平面图,基于逆向造型技术以及三维造型软件获取仿生木薯挖掘铲三维模型;然后,借助Soli Dworks静力学分析模块Simulation对仿生挖掘铲进行静力学分析,得出最大变形量为2.666mm,最大应力为0.0046818MPa,并通过静力学分析结果验证了该设计的合理性。该挖掘铲的成功研制可改善热区木薯收获机的通用性,提高木薯收获效率,减轻木薯种植户的劳动强度,进而促进热区农业经济的发展。In the case of the problems of existing cassava excavation shovels,which were the high quality of excavation shovels and the serious wear of shovels,based on the bionics principle,this paper puts forward a bionic digging shovel imitating the structure of paws for dog inhabited in northeastern area of China.In the first place,using high-magnification scanner,contour structure under the dog paws are extracted,the data processing software is used to collect the outline plan for the structure of the dog paw.Based on reverse modeling technology and three dimensional modeling software,three-dimensional model of bionic cassava digging shovel was obtained,and then under the help of statics analysis module in solidworks bionic digging shovel statics analysis was established.The maximum deformation was 2.666 mm,the maximum stress was 0.004 681 8 MPa.Through the statics analysis results,the rationality of the design was validated.The successful development of the digging shovel improves the extent of generality on the different kinds of planting depths for harvester in the tropical region,dramatically improve the efficiency of cassava harvesting,significantly reduce the labor intensity of farmers planting cassava,and promote the development of tropical agricultural economy.

关 键 词：收获机 木薯 挖掘铲 仿生 

分 类 号：S225.71[农业科学—农业机械化工程] S220.3[农业科学—农业工程]