Big gear
Description
Big gear is the main part of rotary kiln and etc, which needs to drive the whole cylinder to run for a long time. Therefore, there have very high quality requirements for big gear in actual production.
Material:
ZG45、ZG42CrMO
| BIG GEAR AND PINION ASSEMBLY | ||
| Sr no | Design Parameters | Shengchong |
| 1 | GEARING DESIGN | |
| TYPE OF GEAR (SPUR:HELICAL) | SPUR | |
| GEAR RATIO | 1:5.29 | |
| DESIGN TORQUE IN KN-M(KN M) | According to the whole machine equipment motor, reducer power to set | |
| RATED TORQUE IN KN-M (KN M) | According to the whole machine equipment motor, reducer power to set | |
| Service Factor | 1.5 | |
| Pressure Angle | 20 | |
| Helix Angle | NO | |
| Face Width | 400mm | |
| Module | 32 | |
| 2 | Gear Geometry | |
| No of Segment of Girth Gear | 2 | |
| No of Teeth of Girth Gear | 164 | |
| No of Teeth of Pinion | 31 | |
| Pitch Circle Dia – Gear | 5248mm | |
| Pitch Circle Dia – Pinion | 992mm | |
| Tip Circle Dia – Gear | 5312mm | |
| Tip Circle Dia – Pinion | 1056mm | |
| Root Circle Dia – Gear | 5168mm | |
| Root Circle Dia – Pinion | 912mm | |
| 3 | Quality ISO/AGMA – Gear | |
| Quality ISO/AGMA – Pinion | iso6 | |
| 4 | Material – Gear | 42CrMo |
| Material – Pinion | 42CrMo | |
| 5 | Core Hardness – Gear | HB220 |
| Core Hardness – Pinion | HB245 | |
| 6 | Surface Hardness and Thickness – Gear | HB220 |
| Surface Hardness and Thickness – Pinion | HB245 | |
| 7 | Bearings | |
| Type | Cylindrical roller bearings | |
| Make | WAFANGDIAN | |
| Bearing no | 23164CA | |
| Life | 18 | |
| 8 | Pinion Shaft | |
| Material | 40cr | |
| Shaft Hardness | HB220 | |
| Diameter at Pinion | 320mm | |
| Shaft end Diameter | 282mm | |
| Key type | Flat key | |
| Key Material | 45 | |
| 9 | Bearing Housing | |
| Type | Alloy Cast Steel | |
| Material | 45 | |
| 10 | Lubrication System of Bearing (Recommended) | Dry Oil Lubrication (recommended: Beijing Metallurgical Resources) |
| Type | Automatic lubrication | |
| Media Used | Lithium base Grease | |
| Grade | 8 | |
| 11 | Type of Mounting | Hot Pack |
Advantages:
- Unique heat treatment technology improves wear resistance
Special heat treatment technology is adopted in the casting of large tooth ring, which makes the structure of tooth ring optimized, the hardness improved, and the wear resistance and impact resistance of the product greatly enhanced.
- High strength steel ensures service life
High strength steel was used for tooth ring casting, and the driving characteristics of rotary kiln and ball mill were optimized to ensure the stability of components under long running time and prolong their service life.
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