Planetary reducer-special structure|hardened hard surface

The weight of a planetary gear transmission device is generally proportional to the weight of the gear, and the weight of the gear has a lot to do with the hardness of its material and heat treatment.Due to the particularity of the structure of planetary gear reducers, hard tooth surface gears are generally widely used on the market.Generally speaking, hard tooth surface gears are obtained by surface quenching, integral quenching, carburizing quenching, nitriding, etc.

1. Surface hardening

Generally speaking, there are two methods of surface quenching, which are divided into high-frequency quenching and flame quenching.High-frequency quenching is mainly used for small-size gears, and flame quenching is commonly used for large-size gears.

2. Carburizing and quenching

The carrying capacity of carburizing and quenching is relatively large, but as far as the processing process is concerned, it is more complicated. The finishing process must be used to eliminate the deformation of the heat treatment to ensure the accuracy of the gear.

3. Nitriding

The use of nitriding can ensure that the teeth achieve high tooth surface hardness and wear resistance under the condition of small deformation. After heat treatment, the finishing after *** can no longer be carried out, which improves the carrying capacity.This has special significance for internal gears that are not easy to grind teeth.

4. Hardness combination of meshing gears

When the large and small gears are both soft tooth surfaces, the tooth surface hardness of the small gears should be higher than that of the large gears.When both wheels are hard tooth surfaces and the hardness is higher, the hardness of the two wheels is the same.

The selection of good planetary gear reducer materials is conducive to improving the bearing capacity and service life of the gear reducer.