多绳摩擦式提升机的动态特性研究

Dynamic Characteristics of Multi-Rope Friction Hoists

针对多绳摩擦式提升机运行过程中易出现损伤的问题,以JKMD-5×4型多绳摩擦式提升机为研究对象,对其动态特性进行分析。首先,简单介绍了该提升机的基本情况,并构建出提升机主轴模块的有限元模型,然后以此为基础,分别对主轴进行了受力分析、谐响应分析、瞬态动力学分析及振动特性分析。最后,根据模拟分析结果对提升机运行状态进行管控,以此验证模拟分析结果是否准确。通过实际验证可以发现,相对于原管控方法,采用优化后的管控方法时提升机运行更加稳定,显著降低了提升机出现故障的概率。

Aiming at the problem of easy damage during the operation of muli-rope friction hoist,JKMD-5×4 multi-rope friction hoist is taken as the research object and its dynamic characteristics are analysed.Firstly,the basic situation of the hoist is briefly introduced,and the finite element model of the hoist spindle module is constructed,and then force analysis,harmonic response analysis,transient dynamics analysis and vibration characteristics analysis of the spindle are carried out respectively on this basis.Finally,according to the simulation results of the operating state of the hoist control,in order to verify the accuracy of the simulation results.Through the actual verification,it can be found that compared with the original control method,the optimised control method is more stable in the operation of the hoist,which significantly reduces the probability of hoist failure.