Nutation bevel gear drive 2
Input: pink oblique crank rotating regularly.
Output: blue gear shaft rotating regularly.
Beige bevel gear: tooth number Z1 = 40, pitch angle B1 = 63.43 degrees, stationary.
Blue bevel gear: tooth number Z4 = 40, pitch angle B4 = 63.43 degrees.
Yellow bevel gear (tooth number Z2 = 42, pitch angle B2 = 73.43 degrees) and green bevel gear (tooth number Z3 = 41, pitch angle B3 = 73.43 degrees) are fixed together and rotate on oblique portion of the pink crank thus performing wobbling motion.
The width of space between two adjacent teeth is made large enough to ease the engagement.
The pitch apexes of all bevel gears are at the same point.
Oblique angle of the pink crank A = 10 degrees.
Transmission ratio i = 1/(1-((Z1*Z3)/(Z2*Z4))) = 1/(1-((40*41)/(42*40))) = 1/42
This video is made mainly based on the article:
https://iopscience.iop.org/article/10...
STEP files of this video:
https://www.mediafire.com/file/lzmznp...
Inventor files of this video:
https://www.mediafire.com/file/xb3m7x...