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我厂现使用的φ76mm直缝焊管机,由于受到频繁的冲击载荷(因采用长度为12～18m短带钢为坯料组织生产,每当机组喂入一条带钢,齿轮箱中的齿轮就带负荷冲击一次)。齿轮箱输出轴原采用毛毯密封,毛毡与转动轴径接触,致使毛毯损坏快,造成齿轮箱漏油。由于以上原因,轴承损坏频繁,齿轮磨损严重,增加了成本,降低了生产率,加大了维修工作量,改造前齿轮箱轴端密封情况如图1所示。
I use the factory now φ76mm straight seam welded pipe machine, due to frequent impact load (due to the length of 12 ~ 18m short strip for the billet tissue production, whenever the unit fed a strip, the gear box with the load on the load Shock once). The gearbox output shaft was originally sealed with a felt, and the felt was in contact with the axis of rotation, resulting in rapid damage to the felt causing oil leakage in the gearbox. Due to the above reasons, frequent bearing damage, serious gear wear, increased costs, reduced productivity, increased maintenance workload, the transformation of the front gearbox shaft seal shown in Figure 1.