Tool and method for disassembling shaft end expansion sleeve of roll forging machine

The invention relates to the technical field of expansion sleeve disassembly and assembly, in particular to a roll forging machine shaft end expansion sleeve disassembly tool and method.The method comprises the steps that an inner ring of an inner sleeve of an expansion sleeve is disassembled through a first tool, an outer sleeve and an outer ring of the inner sleeve of the expansion sleeve are disassembled through a second tool, and the whole disassembly process is completed according to the structure of the expansion sleeve and the interference fit principle; the expansion force of interference fit is decomposed and collapsed through the steps, the expansion sleeve is finally taken out in a lossless mode, and other components of the roll forging machine are not damaged. 本发明涉及胀紧套拆装技术领域，尤其涉及辊锻机轴端胀紧套拆卸工装和方法，其包括利用工装一拆卸胀紧套的内套内圈，利用工装二拆卸胀紧套的外套和内套外圈，整个拆卸过程根据胀紧套的结构和过盈配合原理，通过步骤分解瓦解过盈配合的胀紧力，最终无损取出胀紧套，且未损坏辊锻机其他构件。