School of Mechanical Engineering, Taiyuan University of Science and Technology Taiyuan Research Institute
Company Limited, China Coal Technology and Engineering Group

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 element 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 ge ar was obviously lower than the inherent frequency of the casing, and the resonance occurred was avoided. The results of the finite element method and the model exp eriment were well fitted.

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)；