基于ANSYS的供球机构摆动轴静动态特性分析

Static and Dynamic Characteristics of the Swing Shaft of Ball Feeding Mechanism of Ball Mounter

供球机构摆动轴的静动态特性对稳定供球、提高供球成功率和提高植球良率有着重要意义。因此,有必要对摆动轴静动态特性进行仿真分析。通过建立简化的摆动轴力学模型,并应用有限元分析软件ANSYS对摆动轴摆动角0°中间位置和±45°QUOTE极限位置进行了静态分析,得到了摆动轴在这些位置的应力、变形云图。对摆动轴进行模态分析,得到了摆动轴前6阶固有频率以及振形。分析结果表明,摆动轴的初步设计符合设计要求,同时判断出摆动角±45°QUOTE位置是摆动轴危险位置,为植球机供球机构的下一步设计与优化提供了参考。

The static and dynamic characteristics of the swing shaft of ball feeding mechanism is of great significance in the ball feeding stability,the success rate for ball feeding and ball mounting. Therefore,it is necessary to conduct the static and dynamic characteristics of the swing shaft simulation analysis. A simplified swing shaft mechanical model is established and the finite element analysis software ANSYS is used for a static analysis of swing axle swing angle of 0° intermediate position and ± 45° limit position to obtain the stress and deformation nephogram of the shaft wobble at these positions. The modal analysis of the swing shaft is carried out,and the natural frequency and the vibration form of the first six natural frequencies are obtained. The results show that the preliminary design of the swing shaft meets the design requirements and that the swing angle ± 45° position is the dangerous position. It provides references for the subsequent design and optimization of the ball mechanism.