和谐系列货运电力机车牵引质量研究

Research on the Tractive Tonnage to “Hexie ” Series of Freight Electric Locomotive

研究目的:随着我国铁路机车设备的发展,尤其是新型大功率交流传动电力机车"和谐"系列机车的成功引进和生产,该系列机车相对目前运营中的"韶山"系列机车而言,其牵引特性有了较大的改善,机车功率、计算牵引力、计算速度明显提高,但是受粘着力的影响,其实际牵引质量均小于理论计算值。为此,本文拟结合新型大功率交流传动电力机车的牵引特性以及现行《列车牵引计算规程》(TB/T 1407—1998)的有关规定,分析研究和谐系列大功率货运电力机车的牵引质量并据此对《列车牵引计算规程》修编提出建议。研究结论:(1)和谐系列电力机车牵引特性明显改善;(2)在沿用现行《牵规》中计算粘着系数的计算公式情况下,和谐系列货运电力机车在计算速度时的计算粘着牵引力小于计算牵引力;(3)按计算粘着牵引力计算的牵引质量小于按计算牵引力计算的牵引质量,而且不同型号电力机车的其差值不同,同型电力机车的其差值则随着限值坡度的增大而减小;(4)这对今后《牵规》的修编以及和谐系列电力机车牵引质量的合理确定具有参考意义。

Research purposes： With the development of railway locomotive equipment in China, especially introduction and production of new - type high - power AC driving electric locomotive - HXD locomotive. For Shaoshan locomotive in the operation at present, this serie of locomotive has a great improvement in tractive characteristics, locomotive power, calculating traction force and calculating speed, but under the influence of adhesion, all tractive tonnages are less than theoretical calculating value. Therefore, in this paper, it is planned to analyze the tractive tonnage of HXD freight electric locomotive and give some suggestions for revision of Calculation Regulations on Railway Train Traction combined with tractive characteristics of new- type high -power AC driving electric locomotive and relevant regulations in the current Calculation Regulations on Railway Train Traction （TB/T 1407 -1998 ）. Research conclusions： （ 1 ） HXD electric locomotive has obvious improvement in tractive characteristics ; （2） If using adhesion coefficient calculation formula in the current ＂Calculation Regulations on Railway Train Traction＂, calculating adhesion traction force of HXD freight electric locomotive is less than calculation traction force when calculating the speed; （3） The tractive tonnage calculated according to calculating adhesion traction force is less than that calculated according to calculating traction force, and the difference between different types of electric locomotives is not same and the difference of same type of electric locomotive decreases with the increase of limited slope; （4） The above study may provide some references for revision of ＂ Calculation Regulations on Rail Train Tractopn＂and reasonable ：determination of tractive tonnage of HXD electric locomotive.