Fatigue Life Analysis and Improvement of Shearer Connecting Frame
Taking MG500/1180 shearer connection frame as the research object,the fatigue life analysis of the connection frame is carried out by using ANSYS Workbench simulation analysis software.The result shows that the fatigue life of the connecting ear plate on the coal wall side of the connection frame is the lowest,and the fatigue life is 4.975e+04,and the corresponding fatigue damage value is 2.086e-5.After that,the improved design of the connection frame is completed by increasing the thickness of the coal side floor from 227 mm to 245 mm and the thickness of the mining side floor from 156 mm to 158 mm.Compared with the previous improvement,the fatigue life of the connection frame has increased by 1.386e+5 and the fatigue damage has decreased by 1.555e-5.The working life has been increased from 295 days to 1 162 days.
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