摘要
针对刮板输送机中部槽在实际工作中铲煤板槽帮发生开裂的问题,基于采煤机直线截煤过程,以铲煤板槽帮左、中、右3条肋板厚度以及肋板圆角作为设计参数,以最大等效应力和中部槽的质量作为目标参数,基于Workbench对中部槽进行动力学仿真,然后利用ncode分析模块对中部槽进行疲劳寿命分析。结果表明,铲煤板槽帮肋板根部处应力值较高,也最容易发生疲劳破坏。通过响应面优化方法实现参数优化,降低应力值并且提高了中部槽的寿命。
In view of the cracking of the middle groove of the scraper conveyor in the actual work,based on the straight-line coal cutting process of the shearer, the dynamic simulation of the middle groovet was carried out based on the Workbench with the thickness of the left, middle and right ribs and the fillet of the ribs as the design parameters and the maximum equivalent stress and the quality of the middle groove as the target parameters. Then the ncode analysis module was used to analyze the fatigue life of the middle groove. The results show that the stress value at the root of the rib plate of the slot side of the shovel board is high, and it is also the most prone to fatigue failure. The response surface optimization method is used to optimize the parameters, reduce the stress value and improve the service life of the middle groove.
作者
郭宇哲
王义亮
Guo Yuzhe;Wang Yiliang(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi Key Laboratory of Fully Mechanized Coal Mining Equipment,Taiyuan 030024,China)
出处
《煤矿机械》
2022年第9期1-4,共4页
Coal Mine Machinery
基金
山西省面上自然基金项目(201901D111055)。
关键词
中部槽
结构动力学
刮板输送机
仿真优化
middle groove
structural dynamics
scraper conveyor
simulation optimization
