目录摘要.....................................................................1一.概述................................................................21.1引言...............................................................21.2“热轴”..........................................................21.3热轴分类...........................................................2二.轴承的结构...........................................................32.1轴箱油润装置.......................................................32.2滚动轴承的工作原理...............................................32.3圆柱滚子轴承的结构...............................................32.4滚动轴承的常见故障................................................4三.热轴原因分析........................................................63.1热轴客车轴承检测情况............................................63.2不合格轴承........................................................63.3轴承的内圈的破裂及裂纹............................................63.4左右轮径差........................................................73.5轴箱定位状态.......................................................73.6轮对运行中踏面剥离、擦伤后继续运行...............................73.7构架结构尺寸误差...................................................73.8车体支撑结构.......................................................73.9其他原因...........................................................8四.对客车热轴的预报....................................................94.1客车用集中轴温报警器.............................................94.2红外轴温探测系统THDS-A概述.....................................9五.客车热轴的改进措施................................................11六.参考文献...........................................................13IThisdocumentisproducedbytrialversionofPrint2Flash.Visitwww.print2flash.comformoreinformation湖南铁路科技职业技术学院毕业论文摘要客车轮对热轴是铁路客车运行的重要故障之一。随着全路大面积提速，客车轮对热轴故障越来越多，已严重危及行车安全。文章从轴承的结构及工作原理入手,进一步分析了客车轴承热轴故障发生的原因；以及为了消灭客车轴承热轴现象的发生，我国车辆部门采取的相应的监控设备与措施；为了提高轮对轴承的检修质量，确保轴承在检修质量保证周期内不发生质量问题，提出相应的处理办法及预防措施。关键词：轴承热轴原因分析建议预防措施Thisdocumentisproducedbytrialve