基于SolidWorks的剪切机曲轴强度分析

曲轴强度分析是剪切机设计的一个关键环节,直接决定了剪切机工作性能.针对传统曲轴校核经验算法计算过程繁琐,存在着大量的假设,与实际曲轴工作条件相比存在较大误差问题,为了符合实际情况的曲轴校核,增强剪切机的可靠性,处理曲轴几何形状、边界条件、作用载荷等影响因素,对曲轴进行了基于SolidWorks三维实体建模,对整根曲轴采取了有限元法计算曲轴的应力,并对曲轴强度进行了校核.得出结论,曲轴所受的实际最大应力并非在曲轴与连轩接触面的中间处,而是在齿轮与轴结合面的轴间处.

Crankshaft strength analysis of shearing machine based on SolidWorks

The crankshaft stress analysis is a key link of the shearing machine design,which determines the performance of shearing machine directly.The traditional crankshaft checking is adopted for experimental method,and the calculation process is complicated.By comparing with the actual working condition,a large number of assumptions is developed with the traditional design,and there exists more errors.The influence factors such as geometry of the crankshaft,the boundary condition,and the loading are extremely complicated.In order to meet the actual condition and the crankshaft checking,the crankshaft under actual condition is modeled in three-dimensional with Solidworks2010 software,the stress of whole crankshaft is calculated by finite element method,and the crankshaft fatigue safety coefficient is checked.It is found that the maximal stress of the crankshaft is not in the middle of the contact between the crankshaft and link,but in the position between gear and crankshaft.