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基于动力学分析理论,利用ANSYS有限元分析平台,建立了矿用铲运机前机架的有限元分析模型。针对铲运机空载和满载时的2种常见工况,提取前机架的动力学载荷,研究其结构强度,得出了前机架应力分布情况,最终确定了危险部位。通过对前机架结构局部改进,提高了前机架整体强度。最终分析结果表明,前机架的强度和刚度可以满足实际工作需要,为前机架的局部改进提供了依据。
Based on the theory of dynamic analysis, the finite element analysis model of the front rack of a mining scraper is established by using ANSYS finite element analysis platform. According to the two common working conditions of the scraper at no-load and full-load conditions, the dynamic load of the front frame is extracted and its structural strength is studied. The stress distribution of the front frame is obtained and the dangerous part is finally determined. By improving the front rack structure locally, the overall front rack strength is increased. The final analysis shows that the strength and stiffness of the front frame can meet the needs of the actual work, which provides the basis for the local improvement of the front frame.