Contact Strength Analysis and Optimal Design of Circular Chain for Scraper Conveyor
The contact strength analysis of the circular chain of SGZ880/800 scraper conveyor was carried out with the circular chain as the research object.The results show that there is a stress concentration at the contact position between the round link chain and the ring,and this is the main position where contact wear occurs in the round link chain.The optimisation and improvement of the scraper chain ring was completed by using the topology optimisation method.Simulation results show that the mass of the chain is reduced from 2.841 kg to 2.733 kg before and after the improvement,which is a reduction of 3.80％;the increase of the maximum equivalent force and the reduction of the maximum equivalent strain are small.The lightweight design of the scraper chain without compromising the stiffness of the chain ring is achieved,and the effect is quite remarkable.
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