一、前言大功率高速液力传动内燃机车万向轴,是机车驱动装置的重要元件,用以传递牵引扭矩.过去,一直使用40Cr钢材自由锻造的制造工艺,这种工艺不但成本高,材料的有效利用率低,生产周期长,影响了生产的发展. 用球墨铸铁制造万向轴,在国外还没有先例.我们遵照毛主席关于“中国人民有志气,有能力,一定要在不远的将来,赶上和超过世界先进水平”和“打破常规,尽量采用先进技术”的伟大教导,狠批了“爬行主义”的修正主义科技路线,实行工人、革命干部和革命技术人员的三结合,开展了用球墨铸铁制造万向轴 I. INTRODUCTION The universal shaft of high-power and high-speed hydraulic drive diesel locomotive is an important component of locomotive driving device for transmitting traction torque.In the past, the manufacturing process of free forging of 40Cr steel has been used, which not only has high cost and material The effective utilization rate is low, the production cycle is long, has affected the development of the production .Combination of the universal shaft made of ductile iron, there is no precedent in foreign countries .We follow Chairman Mao on “Chinese people with ambition, ability, must in the near future , Catch up with and surpass the world advanced level ”and“ break the routine and try to adopt advanced technology ”, severely criticized the“ creepingism ”revisionist line of science and technology and implemented the three unions of workers, revolutionary cadres and revolutionary technicians Made of universal wheel with ductile iron