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历年来 ,上海机务段DF4D、DF11型机车装用的VTC - 2 5 4、ZN31 0 -LSA4型增压器中的滑动轴承 ,是发生故障比较频繁的配件。据统计 ,2 0 0 1年至2 0 0 3年 8月共发生各类增压器故障 1 30件 ,其中 ,转子轴承故障有 2 8件 ,占故障总数的 2 1 .5 %。为此 ,设计、生产和使用单位都对
Over the years, the sliding bearings in the VTC-2 5 4, ZN31 0 -LSA4 turbochargers used for the DF4D and DF11 locomotives of the Shanghai locomotive depot have been the parts with frequent breakdown. According to statistics, 130 supercharger failures occurred from 2001 to August 2003, of which 28 were rotor bearing faults, accounting for 21.5% of the total number of faults. To this end, the design, production and use of units are right