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| Published：2015.06.06 News Sources： Views： | |||
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Analysis of leakage reasons for reducer Reducer input shaft, output shaft and the end surface of the shell bearing two relative motion combined with surface between the seal is called "dynamic sealing point", sealing reducer on the end face of the housing and other structural coupling surface called "static seal", static and dynamic sealing point of the seal failure to become to leak. From the structural analysis, we can find the reason of seal failure. So as to solve the leakage problem lay the foundation. 3.1 dynamic sealing points in the structure in the input, output shaft, gear shaft through a bearing the circular surface, through the end cap and extends out of the speed reducer, and the shaft and the end cap hole clearance, due to the pressure difference on both sides of the seal, the lubricating oil splashed after bearing can not be timely flows back to the deceleration machine shell, set between the bearing and an end cover, surface and the beam end cover slot leakage outwards, so oil can not be promptly returned under the casing and an end cover sealing lax is caused by dynamic seal leakage reasons, because here shaft in rotation state, make it difficult to solve the leak. 3.2 the sealing of the upper and lower shell of the reducer is the main static sealing point of the reducer, the combination of the surface finish and the bolt's fastening is directly related to the leakage of the joint surface.. 3.3 other shaft end cover is also the main static sealing point of the reducer, and its reasons include the dynamic sealing point. 3.4 the leakage of the inspection cover is mainly due to the combination of the surface finish and the cover plate and the deformation caused by the sheet.. 3.5 the permeability of the oil is mainly the location of the improper and ventilation device is too simple to influence. 3.6 the oil level of the oil hole and the oil rod is generally bolted, and the screw thread is not enough to make the leakage.. |
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