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我国港口的发展成就斐然,至2013年底,港口货物吞吐量已连续10年居世界第一,其中,煤、矿等主要货种吞吐量继续保持增长态势,宁波-舟山港、广西北部湾港、防城港港等港口煤、矿散装物料的吞吐量已过总量的1/5。在这些港口中,拥有大量的散料装卸机械、皮带输送机等设备,随着其散料输送向大出力、多种类、高带速趋势发展,其转运点的部件摩擦、磨损问题更加突出。在转运过程中各转运点需承受连续振动及冲击磨损,
The port development in our country has achieved tremendous success. By the end of 2013, the port cargo throughput has been ranking first in the world for 10 consecutive years. Among them, the throughput of main cargo such as coal and mines continued to grow. Ningbo-Zhoushan Port, Beibu Gulf Port, Fangchenggang port and other port coal, bulk cargo throughput has exceeded the total volume of 1/5. In these ports, a large number of bulk loading and unloading machinery, belt conveyors and other equipment, with its bulk conveying to the large output, various types of high-speed trend of development, the transfer point of friction and wear parts of the more prominent. In the transport process of the transfer point to withstand continuous vibration and impact wear,