摘要
针对新疆某煤矿大型液压支架在斜坡上进行整体运输进而引发轮轨接触应力过大而导致轮轨失效的问题,建立了30 kg/m钢轨轮轨接触有限元模型,研究了静止-加速阶段斜坡倾角15.5°、21°,轨枕间距400 mm、800 mm不同工况组合方式下轮轨接触应力变化特性。研究结果可为该煤矿斜坡运输钢轨材质、斜坡坡度、轨枕间距选择提供基础数据支持。
In view of the problem that the wheel-rail contact stress is too large and the wheel-rail failure is caused by the overall transportation of the large hydraulic support on the slope in a coal mine in Xinjiang,set up 30 kg/m rails wheel-rail contact finite element model,explores the static-acceleration phase slope angle of 15.5°、21°,sleeper spacing between 400 mm and 800 mm wheel-rail contact stress under the different condition combination features.The research results can provide basic data support for the selection of rail material,slope gradient and sleeper spacing.
作者
何勇
陈太光
李学泽
张学城
He Yong;Chen Taiguang;Li Xueze;Zhang Xuecheng(Xinjiang Enterprise,National Energy Group,Urumqi 830001,China;School of Mechanical and Electrical Engineering,China University of Mining and Technology,Xuzhou 221116,China)
出处
《煤矿机械》
北大核心
2020年第4期27-29,共3页
Coal Mine Machinery
关键词
大型液压支架
斜坡运输
轮轨
接触应力
轨枕间距
large hydraulic support
slope transportation
wheel-rail
contact stress
sleeper spacing
