How To Improve The Carrying Capacity Of Planetary Reducers

How to improve the carrying capacity of planetary reducers? In modern planetary transmission, the more difficult link is the transmission of gears, in order to meet the performance under heavy load conditions, in order to improve the bearing capacity of planetary reducers, the following methods are proposed according to actual production:

1. Increase the contact stress of the gear ring
The verification strength of the planetary reducer is usually to check the transmission contact stress of the solar wheel and the planetary wheel, the bending stress of the planetary wheel, and the transmission contact stress of the planetary wheel and the internal gear. The ring contact stress is usually the first to fail, so in order to increase the bearing capacity, the ring contact stress must first be ensured.

2. Gear shaping
Tooth trimming, root trimming and tooth end trimming are better methods to improve the transmission performance of heavy-duty gears, because for heavy-duty gears, generally modifying the tooth end can prevent tooth end overload caused by tooth direction error.

3. Adjustment of displacement coefficient
The correct selection of the displacement factor can increase the gear load capacity by 20 to 30%.

4. Control gear accuracy and error
The strength of the tooth surface is not only related to the accuracy level of the gear, but also to the absolute value of the base joint error, if the base joint error of the gear is large, then the rolling pressure applied to the wheel teeth is also large.

5. Tooth root strengthening
The bending strength of the gear has a lot to do with the surface condition of the tooth root, especially the surface of the tooth root part of the carburizing quenching gear has defects such as decarburization layer, which is difficult to ensure the residual pressure, so the root bending fatigue strength is reduced, so root strengthening measures are taken to improve the fatigue strength.

6. Increase the width of the teeth
When the outer diameter of the planetary reducer transmission remains unchanged, the internal gear width can be appropriately increased to effectively increase the bearing capacity of the gear.

7. Increase the gear modulus and tooth angle
The outer diameter size of the planetary reducer remains unchanged, and the bearing capacity needs to be increased, so it can be met by reasonably increasing the gear modulus and reducing the number of gear teeth.