尾部SS_4机车在大秦线3组合4机牵引3万t列车运行试验中的作用分析  

Influence of SS_4 Locomotive on 30000t Train Running Test on Daqin Line Combined by 3 Units and Drived by 4 Locomotives

作　　者：李杰波[1] 陆阳[1] 贾冰 郑重雨 余俊 

机构地区：[1]中国铁道科学研究院机车车辆研究所,北京100081 [2]北京纵横机电技术开发公司,北京100081

出　　处：《铁道机车车辆》2016年第3期121-124,共4页Railway Locomotive & Car

摘　　要：大秦线(含北同蒲线)3万t综合试验中牵引动力采用3组合4机牵引的3+1方式,尾部加挂了一台SS_4直流传动机车。试验结果表明运行试验尾部SS4机车在列车牵引及制动方面均发挥了积极作用,既提高了试验编组机车的整体牵引能力,又改善了整列编组机车电制力的分布,在循环制动时施加的电阻制动对网压抬升有平抑作用;同时显著改善了列车空气制动、缓解同步性,缩短了列车再充气时间,从而有助于提高列车在大秦线两个长大下坡道运行的安全性。One SS4 DC drive locomotive is coupled on the tail for 30000 t train running test on Daqin line （included Beitongpu line）, combined by 3 units and driven by 4 locomotives. The SS4 locomotive gives a positive influence on train traction and braking. It shows that the SS4 locomotive has enlarged the train traction power, improved the distribution of the train electric braking force, and restrain ed the line voltage applied resistance brake during combined brake. It is helpful to improve the safety when running down hill on Daqin line, due to distinctly improved synchronization when applied and released the air brake, and the shortening charging time.

关 键 词：大秦线 3万t SS4 牵引 

分 类 号：U264.917[机械工程—车辆工程]