Fatigue Life Analysis and Optimisation of the First-Stage Planetary Frame of Coal Mining Machine Cutting Section
Aiming at the problem of frequent fracture of the planetary carrier of the first stage of the cutting section of coal mining machine,the fatigue life analysis was carried out with the help of ANSYS finite element simulation and analysis method,taking the fiirst stage of the cutting section of the MG 1000/2500-WD coal mining machine as the object of research.The results show that the static load carried by the first-stage planetary carrier is small,and the number of load cycles at the position of output shaft and sun wheel is the smallest,which belongs to the fatigue hazardous area.The optimisation of the first stage planetary carrier is completed by the optimisation method of increasing the size of the shoulder radius of the output shaft,and the simulation results show that the static strength of the first stage planetary carrier after the optimisation is slightly increased,and the fatigue strength has been greatly improved.
coal mining machinecutting sectionfirst stage planetary carrierfatigue life
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