How to choose the gear of the planetary reducer

There are many factors to be considered in the use of planetary reducers. The most important thing is how to choose the appropriate gear. Choosing the appropriate gear can not only reduce the noise of the reducer, but also make the equipment work more efficiently. Otherwise, if the gears do not match and do not Reasonably, the reducer won't work.So, how to choose the gear of the planetary gear reducer?

When selecting gears, in addition to paying attention to the fact that the hardness of the working tooth surface of the pinion is slightly higher than that of the working tooth surface of the large gear, the following should also be noted.

1. On the premise of satisfying the bending fatigue strength, when the center distance of the reducer is fixed, more gears should be selected to improve the coincidence degree of the gears, make the transmission stable and reduce noise.Under the premise of meeting the transmission requirements, the teeth of the large and small gears should be interlocked as much as possible to disperse and eliminate the influence of gear machining errors on the transmission, and avoid periodic meshing of the teeth of the large and small gears, so as to stabilize the transmission and reduce noise.

2. Adopting a relatively small pressure angle can reduce the operating noise of the enterprise. Comprehensive analysis and consideration of the influence of different strength designs usually take the standard value of 20°C.When the structure allows, priority should be given to the use of helical gears. Compared with spur gears, its vibration and noise are greatly reduced to a certain extent.

3. Under the economic capacity that the user can afford, when designing the imported planetary reducer, the precision grade of the gear should be improved as much as possible.High precision grade gears produce much less noise than lower precision grade gears.