4QPB-1201型平贝母采收机挖掘装置的设计及有限元分析  

Design and Finite Element Analysis of 4QPB-1201 Fritillaria Ussuriensis Maxim Harvester Excavation Device

作　　者：吴立国[1,2,3] 满大为 苗振坤[1,2] 李三平 吴昊[1,2] WU Li-guo;MAN Da-wei;MIAO Zhen-kun;LI San-ping;WU Hao(Forestry New Technology Research Institute,CAF,Beijing 100091,China;Harbin Research Institute of Forestry Machinery,the State Forestry and Grassland Administration,Harbin Heilongjiang 150086,China;College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin Heilongjiang 150040,China)

机构地区：[1]中国林业科学研究院林业新技术研究所,北京100091 [2]国家林业和草原局哈尔滨林业机械研究所,黑龙江哈尔滨150086 [3]东北林业大学机电工程学院,黑龙江哈尔滨150040

出　　处：《林业机械与木工设备》2020年第11期18-23,共6页Forestry Machinery & Woodworking Equipment

基　　金：中央级公益性科研院所基本科研业务费专项资金项目“林药平贝母采收机的开发与应用”(CAFYBB2018SZ017)。

摘　　要：为了提高林药平贝母生产规模、加快转变生产方式、减轻采收劳动强度、提高作业效率和质量、降低作业成本,研制了4QPB-1201型平贝母采收机。在研究其他地茎类作物收获技术及装备的基础上,重点对平贝母采收机的挖掘装置进行设计。采用固定式挖掘铲装置,针对平贝母种植畦型标准,确定了挖掘装置挖掘铲的外形尺寸:铲体横宽为1200 mm,铲体纵宽为200 mm,铲刃夹角为160°。利用CATIA三维实体建模软件建立挖掘铲的三维几何模型,将建立好的几何模型导入ANSYA Workbench有限元分析软件,建立对应的有限元分析模型;对其进行稳定载荷状况下的静力分析,得到挖掘铲的变形和应力分布情况。分析表明:挖掘铲设计形状、选用材料可以满足4QPB-1201型平贝母采收机的工作要求,为挖掘铲的实际应用和优化提供理论依据。In order to improve the production scale of forest herb Fritillaria Ussuriensis Maxim,accelerate the transformation of the production mode,reduce the intensity of harvesting labor,improve operation efficiency and quality,and reduce the operating cost,a 4 QPB-1201 Fritillaria Ussuriensis Maxim harvester was developed.On the basis of studying the technology and equipment of other underground growing stem crops,focus was placed on the design of the excavating device of Fritillaria Ussuriensis Maxim harvester.A fixed excavating shovel device was adopted,and ac-cording to the standard for rowing of Fritillaria Ussuriensis Maxim planting,the external dimensions of the excavating shovel of the excavating device was determined,with the transverse width of the shovel being 1200 mm,the longitudinal width being 200 mm,and the angle of the blade being 160°.CATIA 3 D entity modeling software was used to establish the 3 D geometric model of the excavating shovel,and the established geometric model was imported into ANSYA Workbench finite element analysis software to establish a corresponding finite element analysis model.A static analysis under a stable load was conducted and the deformation and stress distribution of the excavating shovel were obtained,followed by a modal analysis,with the results showing that the shape design and material selection of the excavating shovel can meet the working requirements of 4 QPB-1201 Fritillaria Ussuriensis Maxim harvester,which provides theoretical basis for practical application and optimization of the excavating shovel.

关 键 词：平贝母 采收机 固定式挖掘铲 有限元分析 

分 类 号：S776[农业科学—森林工程]