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针对悬臂四棱锥胀缩结构的卷筒的卷重能力低,且使用中容易出现夹卷、卷筒不涨、滑楔频繁断裂、钢卷内圈硌伤或带钢出现压痕及钳口缸漏油等故障,分析了故障产生的原因,主要是卷筒的悬臂四棱锥胀缩结构存在一定缺陷。通过结构改进,采用内楔形块带动外楔形块、外楔形块带动扇形板的“三斜楔、三扇形板”结构及无缝配合卷筒、自润滑等设计与制造技术,不仅提升了卷重能力,还消除了间隙圆,使卷筒表面形成一光滑圆柱表面,避免了卷筒表面对钢带内圈的硌伤,最大卷重增加了50%,而卷筒直径下降了15%,经济效益显著。
For the cantilever quadrangular pyramid expansion and contraction structure of the roll weight capacity is low, and prone to use in the folder, the reel does not rise, frequent sliding rupture, steel coil inner ring injury or strip indentation and jaw cylinder Oil leakage and other failures, analyzed the causes of the failure, mainly drum mandrel pyramid expansion and contraction of the structure there are some shortcomings. Through the structural improvement, the inner wedges are used to drive the outer wedges and the outer wedges drive the design and manufacturing technology of the “three wedges, three sectors” and the seamless cooperation with the rolls and the self-lubrication of the sectors, which not only improves the The roll weight capability also eliminates the gap circle to provide a smooth cylindrical surface on the roll surface that avoids galling to the inner circumference of the strip with a maximum roll weight increase of 50% and a drop in roll diameter of 15% , Significant economic benefits.