Motor bearing oil leakage
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This post was last written by wawa* n * Edited by ntaozi on 2019-6-10 20:38 The motor drive end bearing has a horizontally split structure with two upper and lower tiles, and the seal is a comb seal. The oil supply pressure is 0.2mpa, and the leakage point is a linear flow from between the shaft and the gland. See the picture for what could be the cause. problem has been solved: The flow direction of motor bearing lubricating oil: Oil tank - oil pump - oil inlet pipe - motor bearing - oil outlet pipe - oil tank. There is a fume fan installed on the fuel tank. Under normal circumstances, the negative pressure of the fuel tank is -2.2kpa. However, during the period when oil leakage occurred, the negative pressure in the fuel tank was -1.8kpa. It is suspected that the smoke exhaust fan is not smooth or the inlet filter of the oil fume fan is clogged. After disassembling the oil fume fan, it was found that the inlet filter was indeed blocked by sludge and oil, causing the negative pressure in the fuel tank to rise, which in turn affected the speed of oil return to the bearing. After cleaning the filter and restarting the machine, the negative pressure is restored and the oil return is normal. Chemical Equipment and Machinery
From the picture, it seems that the motor is forcedly lubricated. It should be that the first seal on the bearing is worn, causing oil leakage.
It should be caused by severe wear of the mechanical seal.
Could it be that there is too much oil and the oil return hole is blocked? The oil in the bearing box cannot return to the oil tank and the oil overflows.
Installing an oil mist separator can not only purify the oil fume, but also provide a slight negative pressure to smooth the oil return! Zhejiang Yipu Lubrication Equipment Manufacturing Co., Ltd. specializes in oil mist separators