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The lubricating oil becomes thinner due to the increase in temperature

发布 时间:2019.01.08 news source:Zibo Boshan Ever-Power Deceleration Machinery Factory


Worm gear reducerAnalysis of common problems and main reasons: 
    1. The reducer heats up and leaks oil.In order to improve efficiency, worm gear reducers generally use non-ferrous metals as worm wheels, and worms use harder steel.Because it is a sliding friction transmission, more heat will be generated during operation, which will cause differences in thermal expansion between the various parts of the reducer and the seal, thereby forming gaps on each mating surface, and the lubricating oil will become thinner due to the increase in temperature, which is easy to cause leakage .There are four main reasons for this situation. One is the unreasonable combination of materials; the other is the poor quality of the meshing friction surface; the third is the incorrect selection of the amount of lubricating oil; the fourth is the poor assembly quality and use environment.
    2. Worm gear wear.The worm wheel is generally made of tin bronze, and the matched worm material is hardened with 45 steel to HRC4555, or 40Cr hardened to HRC5055, and then ground to a roughness of Ra0.8μm by a worm grinder.The reducer wears very slowly during normal operation, and some reducers can be used for more than 10 years.If the wear rate is fast, it is necessary to consider whether the selection is correct, whether it is overloaded, and the material, assembly quality or use environment of the worm gear.

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