曳引轮和钢丝绳磨损对曳引参数的影响  

Influence of wear of traction sheave and wire rope on traction parameters

作　　者：李德庚 Li Degeng

机构地区：[1]陕西省特种设备检验检测研究院,西安710048

出　　处：《起重运输机械》2025年第7期40-45,共6页Hoisting and Conveying Machinery

摘　　要：曳引轮和钢丝绳在长期运行后会出现磨损和直径变小等情况。文中以带切口的U形槽为例,基于曳引力相关公式,分析了轮槽角、切口角与当量摩擦系数之间的关系;建立了磨损后的几何模型,综合分析了磨损尺寸和钢丝绳直径变化对轮槽角、切口角以及曳引系数的影响。结果表明,曳引轮槽磨损对钢丝绳包角的影响可以忽略不计,曳引轮槽磨损会使轮槽角变小,钢丝绳磨损会使切口角变大,磨损发生后会提高曳引系数,但会加剧曳引轮和钢丝绳磨损,且对于滞留工况非常不利。During long-term operation,both the traction sheave and wire rope experience wear,resulting in a reduction in their diameters.Taking a U-shaped groove with a notch as an example,the relationship between the wheel groove angle,notch angle,and equivalent friction coefficient was analyzed based on the relevant formulas for traction force.A geometric model representing the post-wear condition was established,and the combined effects of wear size and wire rope diameter on the wheel groove angle,notch angle,and traction coefficient were thoroughly examined.The results indicate that the impact of traction sheave groove wear on the wrap angle of the steel wire rope is negligible.However,wear in the traction sheave groove causes the groove angle to decrease,while wear in the steel wire rope leads to an increase in the notch angle.After wear occurs,the traction coefficient increases,but this exacerbates the wear of both the traction sheave and the steel wire rope,which is highly detrimental to the system under detention condition.

关 键 词：电梯 磨损 轮槽角 切口角 当量摩擦系数 曳引系数 

分 类 号：TU857[建筑科学]