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大流量水泵密封漏水的问题一直是东风型内燃机车的惯性故障。近两年来,一些单位取消了原水泵的端面密封,改用橡胶油封代替,有的改用双橡胶油封,有的用单橡胶油封,不仅结构形式不统一,而且使用效果也不好。从装在我段厂、架修机车上的水泵运用情况来看,改革后的水泵往往仅维持一、二个轮修期就发生漏水。经解体检查发现,一般是橡胶油封弹簧被水锈蚀脱开或橡胶老化。我认为,这种用油封代替水封的做法,不是解决水泵漏水的途径。几年来,我们摸索了一些经验,采取了一定措施,基本上做到在一个大轮期水泵不漏水,采取的措施包括以下三个方面: 1.水泵轴组装后,其工作台的径向跳动量不大于0.1毫米
Large flow pump seal leakage problem has been the inertia of the DFM locomotive failure. In the past two years, some units canceled the original pump end seal, instead of a rubber seal instead, some use double rubber seal, and some with a single rubber seal, not only the structural form is not uniform, and the use of results is not good. From the installation of the plant in my section, Ji repair locomotive on the use of the pump situation, the reform of the pump often only to maintain one or two rotations occurred on the leaking. Disintegration inspection found that the general is the rubber seal spring water corrosion or tear off or aging. In my opinion, this method of replacing the water seal with an oil seal is not a solution to the water leakage of the water pump. Over the past few years, we groped some experience and took some measures to basically do not leak in a large pump cycle, the measures taken include the following three aspects: 1. After the assembly of the pump shaft, the radial runout of its table The amount of not more than 0.1 mm