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Explain the four major causes of oil leakage in Shanghai helical gear reducer equipment

Source: rubyrad.com Release time: 2015-12-14

Shanghai helical gear reducer is a novel reduction gear transmission, which adopts advanced design concepts. It has the characteristics of small size, light weight, large transmission torque, smooth starting, and fine transmission ratio classification. However, once an oil leak occurs in the Shanghai helical gear reducer, it will not only cause waste of resources, but also pollute the environment. In severe cases, it will cause the Shanghai helical gear reducer to have less oil and cut off oil. Causes equipment accidents. Let ’s talk about what caused the oil leakage in the Shanghai helical gear reducer.
1. Pressure difference between inside and outside of Shanghai helical gear reducer
During the operation of the Shanghai helical gear reducer, the temperature, heat and friction of the helical gear reducer will increase the temperature of the Shanghai helical gear reduction. High, the greater the pressure difference with the outside world, the lubricating oil leaks out of the gap under the effect of the pressure difference.
2. The structural design of Shanghai helical gear reducer is unreasonable
(1) The hole cover is too thin, and it is easy to deform after tightening the bolt, making the joint surface uneven and leaking oil from the contact gap.
(2) In the process of manufacturing Shanghai helical gear reducer, the casting is not annealed or aging treated, internal stress is not eliminated, deformation will inevitably occur, gaps will occur, and leakage will occur.
(3) There is no oil return groove on the box. Lubricating oil accumulates at the shaft seal, end cover, joint surface, etc., and leaks out from the gap under the effect of pressure difference.
(4) The shaft seal structure design is unreasonable. Early reducers mostly used oil groove and felt ring type shaft seal structures. The felt was compressed and deformed during assembly, and the joint surface gap was sealed. If the contact between the journal and the seal is not ideal, the seal will fail in a short time due to the poor compensation performance of the felt. Although there is an oil return hole in the oil ditch, it is easy to be blocked and the oil return effect is difficult to play.
3.Too much fuel
During the operation of the Shanghai helical gear reducer, the oil pool was agitated very much, and the lubricating oil splashed everywhere in the machine. If the refueling amount is too large, a large amount of lubricating oil will accumulate on the shaft seal and the joint surface, causing leakage.
4, improper maintenance process
During the maintenance of the equipment, due to incomplete removal of dirt on the joint surface, or improper selection of sealant, reverse installation of seals, and failure to replace seals in a timely manner may also cause oil leakage.
The above is an analysis of the cause of oil leakage in Shanghai helical gear reducers. In addition to the above reasons, oil leakage in Shanghai helical gear reducers may also be related to oil seal quality, assembly process, and high surface roughness of the shaft. The helical gear reducer leaks oil, please calmly analyze and handle it properly!


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