随着铁路货车提速达速工作的不断发展 ,对铁路货车转 8A转向架枕簧检测、选配的规定也越来越严格。铁道部 1992年铁辆〔1992〕30号文颁发的《铁路货车段修规程》对转向架枕簧组装要求规定是 :同组摇枕弹簧内、外卷自由高度差或各外卷自由高度差不得超过 3mm。 1997年辆货〔1997 With the continuous development of the speeding up of railway wagons, the regulations on the selection of wagons for the turning of railway wagons into the 8A bogies have become more and more stringent. Ministry of Railways issued in 1992, No. [1992] No. 30, issued by the “railway wagon repair regulations” on the bogie spring assembly requirements are: the same group bolster spring, the outer free-fall height difference or the outer free-fall height difference Must not exceed 3mm. 1997 goods [1997