摘要
为提高悬臂式掘进机截割减速器壳体的抗振能力,分别以有限元法和模态试验研究了截割减速器壳体。以某型悬臂式掘进机截割减速器为例,通过Solidworks建立壳体的三维模型,并将其导入Workbench进行带预应力约束的模态分析,求解了壳体前六阶固有频率和振型;同时对该减速器壳体进行了模态试验。结果显示,齿轮啮合频率显著低于壳体固有频率,避免了发生共振,且有限元法与模态试验结果相吻合。
In order to improve the anti-vibration capacity of the cutting gearbox casing applied on the boom type roadheader, a finite ele- ment method and a model experiment were applied to study the casing model.Taking a cutting gearbox of a roadheader as an example, the Solidworks was applied to establish a 3D model of the gearbox casing.Then the 3D model was applied to the Workbench for the analysis on the pre-stressed restriction model.The casing inherent frequency and vibration mode of the former 6 stage were solved.Meanwhile a model experiment was conducted on the gearbox casing.The results showed that the gearing frequency of the gear was obviously lower than the in- herent frequency of the casing, and the resonance occurred was avoided.The results of the finite element method and the model experiment were well fitted.
出处
《煤炭科学技术》
CAS
北大核心
2014年第1期76-79,共4页
Coal Science and Technology
基金
国家高技术研究发展计划(863计划)资助项目(2012AA06A405)
山西省回国留学生人员科研资助项目(2012-073)
天地科技股份有限公司创新基金资助项目(KJ-3-SXMJ-05)
关键词
悬臂式掘进机
截割减速器
固有动特性
固有频率
boom type roadheader
cutting gearbox
inherent vibration features
inherent frequency
