【摘要】 为解决果园作业平台工作中升降过程荷载难以获得及结构设计等问题，以果园作业平台的升降结构为研究对象，利用ANSYS Workbench19.2的Rigid Dynamics模块进行作业平台升降结构动力学分析，通过设置作业平台、提升支撑杆、机架、机架与提升支撑杆之间连接滑块、作业平台与提升支撑杆之间连接滑块、液压油缸等9个组件之间的连接副，作业平台升降结构自重，实际需承受荷载作业人员与采摘对象产生的最大压力，在液压油缸活塞杆相对缸体运动速度分别为0.006、0.008、0.012 m/s时，模拟作业平台升降过程，得出升降过程中作业平台平移速度、加速度及升降过程相关的各连接副受力、液压油缸推力随时间变化规律，使果园作业平台的配套动力、选用材料、结构设计更趋合理，为进一步优化果园作业平台的结构，更好地应用于生产提供参考。更多还原

【Abstract】 It was difficult to obtain the load during lifting of the orchard operating platform,which made it difficult to design the structure. The lifting structure main core structure of the orchard operating platform,was taken as the research object. Dynamic analysis was held around lifting process of the operating platform based on Rigid Dynamics modules of ANSYS Workbench19.2. There were 18connection pairs between 9 components,including the operating platform,the lifting rod,the frame,the slider between the frame and the lifting rod,the slider between the frame and the lifting rod,the hydraulic oil cylinder and so on. Weight of the lifting structure of the operating platform and maximum pressure of operators and picking objects were set up as actual load of the lifting structure of the operating platform. 3 motion conditions,according to the motion speed at 0.006,0.008 and 0.012 m/s of piston rod of the hydraulic oil cylinder relative to cylinder block of hydraulic oil cylinder,were set up. Lifting process of the lifting structure of the operating platform was simulated. Translation speed of the operating platform,translation acceleration of the operating platform,force of each connection pair and thrust of the hydraulic oil cylinder with time were obtained,which made supporting power,material and structure of the orchard operating platform more reasonable,and provided reference for further optimizing the structure of the orchard operating platform and more suitable production.更多还原