畢業(yè)論文crh380a動(dòng)車(chē)組輪對(duì)檢修流程及改進(jìn)方案

1、目錄第1章緒論..................................................................................................11.1研究背景..................................................................................................11.2研究思路.

2、.................................................................................................1第2章輪對(duì)....................................................................................................22.1輪對(duì)的作用........

3、......................................................................................22.2輪對(duì)的組成..............................................................................................22.2.1車(chē)輪.......................

4、........................................................................32.2.2車(chē)軸...............................................................................................52.2.3制動(dòng)盤(pán)....................................

5、.......................................................6第3章輪對(duì)故障分析........................................................................................73.1輪對(duì)故障原因.........................................................

6、.................................73.2踏面擦傷、剝離......................................................................................73.3圓周磨耗、輪緣（垂直）磨耗..............................................................83.4車(chē)輪裂紋及其他

7、情況..............................................................................9第4章輪對(duì)檢修流程......................................................................................104.1輪對(duì)檢測(cè)作業(yè)程序...............................

8、.................................................104.1.1尺寸測(cè)量.....................................................................................104.1.2探傷作業(yè)程序..............................................................

9、...............104.2輪對(duì)組成檢修........................................................................................104.3車(chē)輪檢修................................................................................................1

10、14.3.1車(chē)輪踏面磨耗的檢修.................................................................124.3.2踏面擦傷、碾長(zhǎng)和剝離的檢修.................................................124.3.3車(chē)輪內(nèi)側(cè)距離檢修........................................................

11、.............134.3.4LU輪輪輞輻超聲波探傷檢修...................................................134.3.5車(chē)輪的鏇輪檢修.........................................................................144.4車(chē)軸檢修........................................

12、........................................................164.4.1車(chē)軸外觀檢修.............................................................................164.4.2車(chē)軸故障檢修.............................................................

13、................17第5章輪對(duì)檢修流程改進(jìn)設(shè)計(jì)......................................................................185.1改進(jìn)思路................................................................................................185.2改進(jìn)設(shè)計(jì)及分析..

14、..................................................................................18參考文獻(xiàn)........................................................................................................19致謝........................

15、..........................................................................................201CRH380ACRH380A動(dòng)車(chē)組輪對(duì)檢修流程及改進(jìn)方案動(dòng)車(chē)組輪對(duì)檢修流程及改進(jìn)方案第1章緒論1.11.1研究背景研究背景由于我國(guó)的鐵路實(shí)現(xiàn)了第六次大提速，動(dòng)車(chē)越來(lái)越普遍的出現(xiàn)在運(yùn)營(yíng)線上，并且已經(jīng)成為我過(guò)客運(yùn)交通的主要方式。CRH380A型動(dòng)車(chē)組運(yùn)營(yíng)速度

16、高，同時(shí)受運(yùn)營(yíng)線路條件和極端天氣影響，因此完善的輪對(duì)檢修流程和工藝直接關(guān)系到動(dòng)車(chē)組的運(yùn)行安全。1.21.2研究思路研究思路輪對(duì)在運(yùn)行一定的時(shí)間后會(huì)產(chǎn)生扁疤、擦傷、裂紋、剝離、磨損和龜裂等缺陷、如果這些輪對(duì)缺陷沒(méi)有及時(shí)被修復(fù)的話(huà)，就會(huì)導(dǎo)致軸承、車(chē)軸、鋼軌等產(chǎn)生機(jī)械損傷，從而引發(fā)安全事故。我們知道為了適應(yīng)社會(huì)發(fā)展的需要，鐵路必定還會(huì)提速，提速就對(duì)鐵路安全運(yùn)行提出了更高的要求，同時(shí)也對(duì)車(chē)輛的檢修質(zhì)量提出更高的要求。作為動(dòng)車(chē)運(yùn)行安全的關(guān)鍵部位，