针对早期生产的缠绕式提升机滚筒开裂的主要原因提出了改造设计方案 ,并以原苏制 2бМ 30 0 0 / 1511— 2型提升机为例给出了改造设计结果 ,为老式提升机的改造提供了新思路 Aiming at the main reason of the drum cracking of the winding hoist in the early stage, a modified design scheme is put forward, and the design results of the rebuild are given based on the prototype 2бМ 30 0 0/1511-2 hoist, which is the modification of the old hoister Provide a new idea