基于ANSYS的选矸机械爪动力学分析

Dynamics Analysis of Gangue Removal Mechanical Claw Based on ANSYS

为解决选矸过程中选矸机械臂抓取准确度因变形量过大导致选矸效率较低的问题,设计了一种框架式选矸机械爪来替代选矸机械臂。利用SolidWorks对机械爪进行建模,将设计好的结构导入ADAMS中,通过施加驱动函数得到各零件的速度,将数据结果导入ANSYS中作为约束条件进行仿真。结果表明:在工作中变形最大部位为基体与齿轮杆联接处,最大应力为25.344 MPa。此时最大变形量为4.663×10-5mm,与现有选矸机械臂相比机械爪末端最大变形减少了79.12%。提高了机械爪抓取物体过程中的精确度。

In order to solve the problem of low efficiency of gangue removal due to excessive deformation of the end of the gangue selection mechanical arm when grasping the object,designed a frame gangue removal mechanical claw to replace the gangue selection mechanical arm.Using SolidWorks to model the mechanical claw,the designed structure was imported into ADAMS to obtain the speed of each part by applying the driving function,and the data results were imported into ANSYS as a constraint for simulation.The results show that the maximum deformation is the base and gear bar and the maximum stress is 25.344 MPa.At this time,the maximum deformation amount is 4.663x10-5 mm,and the maximum deformation of the mechanical claw end is reduced by 79.12%compared with the existing gangue selection mechanical arm.Improved the accuracy of the mechanical claw in grasping an object.