OPTIMAL SUSPENSION POINTS BASED ON SYNCHRONOUS FAILURE PRINCIPLE FOR A NEW DOUBLE HOISTING RECLAIMING BOOM

The semi-portal scraper reclaimer is a continuous and efficient bulk material loading equipment, which is widely used in industry. Truss-type reclaiming boom hanging under the semi-portal frame is an important part of the scraper reclaimer. The hanging position of the reclaiming boom determines its bending moment and stress distribution, which directly affects safety. In this paper, a kind of reclaiming boom with dual equal-force hanging point is proposed, which shows better stress distribution than the reclaiming boom with a single hanging point. Based on the simultaneous mode of failure approach, a mathematical model is built for the hanging position design of reclaiming boom, and subsequently the optimal hanging position is determined. Finally, a numerical example demonstrates the superiority of the proposed model.