关于煤矿刮板输送机驱动链轮的优化设计研究

Research on the Optimal Designn of Driving Sprocket of Coal Mine Scraper Conveyor

利用SolidWorks和ANSYS Workbench软件,根据SGB420/17型刮板输送机驱动链轮的实际结构尺寸,建立有限元模型并进行受力分析。结果发现,驱动链轮链窝部位出现了应力和应变集中现象,最大接触应力和最大应变分别为168.89 MPa和0.00114。以驱动链轮链窝区域的最大接触应力为优化目标,以链窝区域的4个主要结构尺寸为优化对象开展优化改进工作。优化后的链轮其最大接触应力和应变分别降低13.14%和6.14%,达到了预期效果。通过3个月时间的现场测试发现使用寿命可以提升10%左右。

Using SolidWorks and ANSYS Workbench software,a finite element model was established and force analysis was carried out according to the actual structural dimensions of the driving sprocket of SGB420/17 scraper conveyor.It is found that the stress and strain concentration phenomenon occurs in the chain nest area of the driving sprocket,and the maximum contact stress and maximum strain are 168.89 MPa and 0.00114.The maximum contact stress in the chain nest area of the driving sprocket is taken as the optimisation target,and the four main structural dimensions in the chain nest area are taken as the optimisation objects to carry out optimisation and improvement work.The maximum contact stress and strain of the optimised sprocket were reduced by 13.14%and 6.14% respectively,achieving the expected results.The service life of the sprocket wheel can be improved by about 10% through the field test in three months'time.