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油封是农业机械上的重要零件,应用广泛。其性能和质量的好坏直接影响着农业机械使用的可靠性。有些油封的寿命长则一年,少则几个月甚至三、五天因密封不严而漏油报废,这一状况严重影响了农业机械的工作效率,不仅增加了油耗和生产成本,而且污染环境。1.油封的工作原理(1)自由状态下,油封唇口内径比
Oil seal is an important part of agricultural machinery, widely used. The performance and quality of a direct impact on the reliability of agricultural machinery. Some oil seals have a long life of one year, ranging from a few months or even three or five days to oil leakage due to lax sealing. This situation has seriously affected the working efficiency of agricultural machinery, not only increasing fuel consumption and production costs, but also polluting surroundings. 1. The working principle of the oil seal (1) In the free state, the oil seal lip diameter ratio