Super High Reduction with Planetary Gears: STEM
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- čas přidán 15. 07. 2024
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Let's take some of the mystery out of planetary gears by showing the calculations involved and how to get really high reductions.
Special thanks to Gear Down for What? for the super awesome 3D printed gearbox. Let's analyze it to see how they get the 160:1 reduction.
• High Torque High Speed... - Věda a technologie
I'm pretty sure I have seen the precision transmission channel take apart some transmissions that had only 4.5 teeth on their planetary gears.... loved the video! Thanks for the info!
Great point!
How would you get a half tooth 😂😂
THANKYOU !!
I should mention that the video would be made better with more pictures and diagrams. Especially ones that show examples relating the equations to an example planetary gear set.
I wonder whether those compound planetary gears = Wolfrom gears are always self-locking? There's a paper on this by by Salgado and Castillo (2007).
If there was a sun gear connected to the drive shaft for the center section, they gears would lock up. Fortunately, that is not the case. I mentioned that you may want to put a sun gear for structural support, but if should not be locked to the drive shaft.
sir I have a question How many gear ratios can a differential system have? And what if we connect more differential system have ? Does it has the formula to calculate the number of gear ratios ?
A planetary gear system will only have one ratio between the carrier, sun and ring. Multiple planetary gears can be put together to create more ratios. Watch this video czcams.com/video/V10Kx9vpdmI/video.html
1.Does this kind of reduction correspond to a proprtionap increase of torque?
2. Does this kind of configuration Allow for a very low torque but very high rpm input remain undiminished?
Power remains constant in a gearbox. Power = Torque * Speed so if speed is reduced, torque will increase. T1 * N1 = T2 * N2
I have 1s=10 3p=20 1r=50. When i did the equation r-s/p (p=3) i get a decimal. What am i doing wrong here what did i miss?
(50-10)/20=2, no decimal here
really good content, but it'll be more beneficial if you can share the textbook that you've referred for these formulas
Fundamentals of Machine Component Design - Juvinall, Marshek 3rd Edition, pg 665-669
@@MentoredEngineer could you give us the link of this book
@@jalelsaidi3827 www.amazon.com/Fundamentals-Machine-Component-Design-Juvinall/dp/1118012895
I have an idea that could have reductions of many hundreds in a 2 stage arrangement.
Is this already done?
Am I dreaming?
Once I've made it "from wood "I'll post it 😁
It has already been done. I made a video on it too.
studio.czcams.com/users/videoimp3le0DCXs/edit
Too much talk
Thank you for the response. It is a difficult balance between being brief and thorough. I will attempt to be more concise in the future.
@@MentoredEngineer Such a highly abstract topic needs more diagrams, animations. Look at the similar video's which all are based around hardware.