目前,带式输送机是我国量大面广的一种物料输送机械。近年来,其产量在全国各种输送机中居第一位。以生产带式输送机为主的工厂就有50～60家。这些工厂基本上都属“大而全”和“小而全”的企业。它们在中小型起重 At present, the belt conveyor is a kind of material conveying machine with a large quantity in China. In recent years, its output ranks first among various conveyors in the country. There are 50 to 60 factories that mainly produce belt conveyors. These factories are basically “large and complete” and “small and complete” companies. They are lifting in small and medium sized