摘要
针对用于矿产资源深部开采的超深矿井提升装备,为保证多点提升、多层缠绕钢丝绳间的同步性,从提升机主轴装置卷筒结构角度,探讨钢丝绳间变形失谐的成因,并提出减小失谐量的有效解决方案。通过建立钢丝绳多层缠绕与双绳区卷筒在圈间、层间缠绕时的耦合变形模型,得到卷筒在各圈缠绕时的受载情况。利用有限元法计算提升过程中卷筒的变形量,得到两钢丝绳变形失谐量波动曲线,结果表明,提升机卷筒结构对双绳多层缠绕钢丝绳提升同步性具有重要影响,提升过程中卷筒的变形会引起钢丝绳间变形失谐,若控制不当可能导致钢丝绳间的张力差超标,危及钢丝绳安全。通过优化提升机卷筒腹板支承结构,可以明显提高卷筒刚度,减小钢丝绳间变形失谐量。研究结果可对设计超深矿井双钢丝绳多层缠绕提升卷筒结构,保证钢丝绳多点提升、多层缠绕的同步性提供参考。
The ultra-deep mine hoist is used in deep mining. To ensure ropes＇ synchronization under multipoint lifting and multilayer winding conditions,the causes of ropes＇ discordance were studied and the effective scheme was proposed for reducing the discordant value perspective from the hoist drum＇s structure. The coupling deformation model of ropes and drum during winding between cycles and layers was built,then the load condition on the drum during lifting process was obtained. Finite element method was utilized to compute the drum＇s deformation,and obtained the variation curve of ropes discordant value. The results show that the drum＇s structure has a great influence on ropes＇ synchronization,and the coupling deformation on drum and ropes will cause ropes＇ discordance. If under an improper control,the tension difference between ropes will exceed,which causes ropes unsafe. Through optimizing the support structure,the drum＇s stiffness was improved and the ropes discordant value was decreased significantly. The study has theoretical and applied values for the design of drum＇s structure for ensuring ropes＇ synchronization under multipoint lifting and multilayer winding conditions.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2016年第8期2121-2129,共9页
Journal of China Coal Society
基金
国家重点基础研究发展计划(973)资助项目(2014CB049403)
关键词
多点提升
多层缠绕
卷筒
变形失谐
multipoint lifting
multilayer winding
drum
discordance
