Resources for designing a planetary gearbox

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SUMMARY

The discussion centers on designing a type 3 epicyclic gear train with two rings and the need for a corresponding CAD model. The user seeks resources such as CAD files or photos of similar reducers to aid in the design process, as they lack experience with physical reducers. A recommended resource includes a tutorial on creating a planetary gearbox using FreeCAD, which provides practical guidance for assembly and design.

PREREQUISITES
  • Understanding of epicyclic gear train mechanics
  • Familiarity with CAD software, specifically FreeCAD
  • Knowledge of concentric shaft design principles
  • Basic principles of gearbox assembly
NEXT STEPS
  • Research FreeCAD tutorials on planetary gearbox design
  • Explore CAD file repositories for planetary gearbox models
  • Study videos demonstrating the assembly of epicyclic gear trains
  • Investigate the mechanical properties of type 3 gear systems
USEFUL FOR

Mechanical engineers, CAD designers, students working on gearbox projects, and anyone interested in the design and assembly of planetary gear systems.

achraf mecanique
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Hello everyone,


As part of a project, I have designed a type 3 (with two rings ) epicyclic gear train. I now need to create a corresponding CAD model. However, since I have never seen an actual physical reducer, it makes the design process more challenging.

If anyone can help me with a CAD file, a photo of a similar reducer, or any other resource, I would be very grateful.

Thank you in advance for your assistance!
 

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Is this project for schoolwork?
 
You must set at least 2 of the shaft concentric (one going through the other). It doesn't matter which one is inside the other. If they all go on the same side, all 3 must be concentric as in this next video (you can see how it is assembled at 0:24):

​
 
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achraf mecanique said:
Hello everyone,


As part of a project, I have designed a type 3 (with two rings ) epicyclic gear train. I now need to create a corresponding CAD model. However, since I have never seen an actual physical reducer, it makes the design process more challenging.

If anyone can help me with a CAD file, a photo of a similar reducer, or any other resource, I would be very grateful.

Thank you in advance for your assistance!
This guy explains how to make a planetary gear box in FreeCAD.

 

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