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介绍了自主研发的全移动破碎站结构以及技术特点,结合破碎站的实际工况,利用ANSYS建立了破碎站以及钢结构架有限元模型;运用分块Lanczos方法对整个破碎站主体结构以及钢结构架进行模态分析,得到前10阶主频率和主振型,确定各阶模态下不同部件的最大振幅。通过计算可以得出,破碎站整机及主体钢结构前10阶的频率都比较小,整机在对应频率下的最大振幅主要集中在卸料臂末端和受料斗前端。
The structure and technical characteristics of the self-developed mobile crushing plant are introduced. Based on the actual working conditions of the crushing plant, the finite element model of the crushing plant and the steel structure is established by using ANSYS. The block-based Lanczos method is used to analyze the main structure of the crushing plant and the steel structure The modal analysis of the frame gives the first 10 main frequencies and the main vibration modes, and determines the maximum amplitudes of the different components under each mode. By calculation, it can be concluded that the frequencies of the first ten stages of the whole machine and the main steel structure of the crushing plant are relatively small. The maximum amplitude of the whole machine at the corresponding frequency is mainly concentrated at the end of the unloading arm and the front end of the hopper.