摘要
针对采煤机导向滑靴强度不够的问题,本文利用Ansys软件对7LS2A型采煤机的导向滑靴进行强度分析。结果发现,后导向滑靴在销轴孔部位出现了明显的应力集中现象,应力最大值为527.84 MPa,超过了材料的使用应力490 MPa。将导向滑靴销轴孔直径和钢板厚度分别增加2 mm和10 mm,再次进行强度分析,发现优化后的后导向滑靴,其应力集中最大值降低到了442.61 MPa,完全能够满足实际使用需要。将优化后的导向滑靴应用到采煤机工程实践中,经现场应用发现达到了预期效果,显著提升了结构件的使用寿命。
Aiming at insufficient strength of shearer slipper,the paper analyzes the strength of the slipper of the 7LS2A shearer using Ansys software.The results show that there is a significant stress concentration in the pin hole of the rear slipper,with a maximum stress of 527.84 MPa,exceeding the material's service stress of 490 MPa.By increasing the diameter of the slipper pin hole and the thickness of the steel plate by 2 mm and 10 mm respectively,the maximum stress concentration is reduced to 442.61 MPa,which fully meets the practical needs and significantly improves the service life of the structural components.
作者
柳兵兵
Liu Bingbing(Xinzhi Colliery,Huozhou Coal and Electricity Group,Huozhou,Shanxi 031400)
出处
《江西煤炭科技》
2023年第3期244-246,共3页
Jiangxi Coal Science & Technology
关键词
采煤机
导向滑靴
强度分析
优化改进
shearer
slipper
strength analysis
optimization and improvement
