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1.概述胶带输送机目前国内外发展都相当迅速。由于它具有连续运输、便于实现运输自动化、生产效率高、运费低、操作安全、便于维护等许多优点,因而被工农业生产中的各个部门广泛采用。据冶金、煤炭、电力、矿山、建筑等部门的不完全统计就有胶带输送机5万多,使用量大、面广。托辊是胶带输送机的基础部件,用量非常大。一台SPJ—150型的胶带机就有托辊1606个,其中下托辊是401个、消耗比较多。据有关部门统计,全国每年要消耗500万个托辊,其中三分之一是上托辊(即166万个)。目前,国内外普遍采用的胶带输送机下托辊
1. Overview Belt conveyor at home and abroad are quite rapid development. Because of its continuous transport, to facilitate the realization of transport automation, high production efficiency, low shipping costs, safe operation, easy maintenance and many other advantages, which are widely used in various sectors of industrial and agricultural production. According to the incomplete statistics of metallurgy, coal, electric power, mining, construction and other departments, there are more than 50,000 belt conveyors with large usage and wide range. Roller is the basic part of the belt conveyor, a very large amount. A SPJ-150-type tape machine will have 1606 idlers, including the next roller is 401, consume more. According to statistics from relevant departments, 5 million idlers are consumed each year in the country, and one third of them are idlers (or 1.66 million). At present, commonly used at home and abroad under the belt conveyor roller