How to troubleshoot common faults of worm gear reducer

　　Worm gear reducer is the same as other commonly used equipment. Its efficient operation and use must be inseparable from the user's operating methods and maintenance frequency. Only by taking the equipment seriously can we better serve us.So how should we troubleshoot in normal use?You can read the following:
　　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 of worm gear reducer is worn out.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 of the worm gear, assembly quality or use environment and other reasons.
　　3. The transmission pinion helical gear is worn.It usually occurs on the reducer installed vertically, mainly related to the amount of lubricating oil added and the type of oil.When installed vertically, it is easy to cause insufficient lubricating oil. When the reducer stops running, the transmission gear oil between the motor and the reducer will be lost, and the gears will not get the proper lubrication protection.When the reducer is started, the gears are not effectively lubricated, causing mechanical wear and even damage.
　　4. Worm bearing is damaged.When a failure occurs, even if the gearbox is well sealed, it is often found that the gear oil in the reducer is emulsified, and the bearings are rusted, corroded, and damaged.This is because the condensate produced by the gear oil temperature rises and cools down after the gearbox has been running for a period of time is mixed with water.Of course, it is also closely related to the bearing quality and assembly process.
　　According to several common faults of worm gear reducer, this article is divided into four parts. The parts that often fail in the lubricating oil, worm gear, transmission pinion helical gear and worm bearing are summarized, and can be overhauled according to the actual situation. , To prevent problems before they happen.