Harmonic Drive
par jdow
Fichiers imprimables (7)
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stlflex_spline.stl
995 Ko · 4 650 téléchargements
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stlcircular_spline.stl
428 Ko · 4 572 téléchargements
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stlpot_bracket.stl
53 Ko · 4 501 téléchargements
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stlservo_frame.stl
125 Ko · 4 559 téléchargements
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stlstabilizer_base.stl
2.3 Mo · 4 538 téléchargements
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stlstabilizer_frame.stl
1.8 Mo · 4 527 téléchargements
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stlwave_generator.stl
113 Ko · 4 537 téléchargements
Description
This is a 3D printable version of a harmonic drive. Harmonic drives are mechanical gear systems that have some very nice properties such as no backlash, high gear ratios, and being able to hold their position without power :
http://en.wikipedia.org/wiki/Harmonic_drive
Harmonic drives have an elliptically deformable inner gear (the flex spline) that is meshed into a ridged outer gear (the circular spline) using an elliptical horn ( the wave generator) that attaches to a motor. As the wave generator moves it deforms the flex spline and changes its contact points with the circular spline. Every full rotation of the wave generator moves the flex spline by only by the difference in the number of teeth in the flex spline and the circular spline. This design has 32 teeth in the flex spline and 34 teeth in the circular spline. See more details:
http://www.projectbiped.com/projects/harmonic-drive
Check out the video of the drive in action: