为确保大秦线C_(61)运煤专列安全运行,实行限速60km/h,因此影响了运输效益。随着运量增长的需要,大秦线运煤专列的提速问题引起了关注和重视,上海铁道大学通过C_(61)型敞车振型实测和大秦线运用车振动性能试验,找出振动规律,同时装车试验枕簧定位器、弹性体斜楔和弹性滚子旁承等改造方案,试验证明对C_(61)提速是有效的,获得了初步成功,为我国主型货车转向架转8A的进一步改造和货物列车的提速作了有益的探讨。 In order to ensure safe operation of Datong-Qinhuangdao C_ (61) coal train, the speed limit of 60km / h was implemented, thus affecting the transportation benefit. With the increasing of traffic volume, the speeding up of the coal trains on the Daqin Line has drawn much attention and attention. The vibration law of the C_ (61) open-car and the vibration test of the Daqin line were found out by Shanghai Railway University. Meanwhile, The experimental results show that it is effective to speed up C_ (61) and achieved the initial success, which is the first step for our country’s main truck bogie to turn 8A Reconstruction and speed of freight trains made a useful discussion.