本文介绍了三辊冷轧管机机头的套筒强度计算。此类冷轧管机是在五十年代末投入生产,由我国自行设计制造,目前得到广泛使用。套筒是重要另件,其强度计算问题尚未见解决。作者用弹性力学解析方法分析了在不连续载荷作用下的厚壁筒强度计算问题。可供在改造和新设计此类轧机时参考。 This article describes the three-roll cold-rolled tube machine head sleeve strength calculation. Such cold-rolled tube machine is put into production in the late fifties, designed and manufactured by our own, is currently widely used. Sleeve is an important piece, the strength of the problem has not yet been solved. The author analyzes the problem of calculating the strength of thick-walled tube under the action of discontinuous load by the method of elasticity analysis. Available for retrofitting and new design of such mills reference.