Table 2 System parameters and stress calculation results
From: Life Distribution Transformation Model of Planetary Gear System
Parameters | Sun gear | Planet gear | Ring gear |
|---|---|---|---|
Normal modulus (mm) | 1 | 1 | 1 |
Number of teeth | 51 | 21 | 93 |
Pressure angle (°) | 20 | 20 | 20 |
Helix angle (°) | 26 | 26 | 26 |
Face width (mm) | 22 | 21.5 | 22 |
Tooth thickness (mm) | 1.49 | 1.55 | 1.57 |
Profile shift coefficient | −0.1 | 0 | 0 |
Root fillet radius (mm) | 0.41 | 0.42 | 0.15 |
Root roughness (μm) | Rz = 10 | Rz = 10 | Rz = 10 |
ISO quality grade | 6 | 6 | 6 |
Material | 20CrMnTi | 20CrMnTi | 20CrMnTi |
Root stress (MPa) | 388 | 362 | 420 |