一、问题的提起我国煤矿还没有制定竖井多绳绞车过卷罐道设计规范和质量标准,因此设计的过卷罐道形式是不一致的。在结构上,有整体式的,也有分体式的;在材料上,有木质的,也有金属的;在使用方法上,有在井上下都装 First, the problem raised China’s coal mines have not developed a multi-rope winch hoist over the canyon design specifications and quality standards, the design of the over-coiled can form is inconsistent. In the structure, there is a monolithic, but also split; in the material, there are wood, but also metal; in the use of methods, there are installed in the well