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  • Planetary Gear Design

    Discussion in 'Creo or Pro/Engineer' started by Vibin Shalom, Feb 21, 2016.

    1. Vibin Shalom

      Vibin Shalom New Member

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      Currently, I am working on a project that involves planetary gear mechanism.I have a problem with meshing my sun and planet gears.the tooths are merging when gear mechanism is given in CREO 3.0. I am pretty sure that the assumed conditions and calculations are correct. From my observation, the tooth thickness is less than half of the circular pitch. Can anyone help me out in modelling the sun and planet gears for my specifications?
       
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    3. s.weinberg

      s.weinberg Well-Known Member EngineeringClicks Expert

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      Are you 3D printing your gears, or CNCing them yourself? Why do you need accurate models?

      You should be able to calculate out proper spacing to get good engagement, and gear specifications, readily enough if you're using gears off the shelf, or buying them from a gear manufacturer.
       
    4. barg

      barg New Member

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      The basic laws of planetary design for a fixed ring gear are:

      The ratio is: Number of ring gear teeth / Number of sun gear teeth +1
      The number of planet gear teeth = (Number of ring gear teeth - Number of sun gear teeth)/2

      I hope this helps.
       
    5. lgs007

      lgs007 Member

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