DeadlyDad Thanks :-) I had to find that explanation for myself. Ever since I saw this method of reducing speed, I wanted to figure how that worked and then one day this dawned on me! Thank you for appreciating it!
jrhirsch1 My pleasure! I still remember how impressed I was by this idea when i saw this first during my college days . . . Thanks for watching and writing back!
I’ll be breaking in the cycloidal drive I printed hopefully tomorrow. It has a 8 to 1 reduction. It will be lubricated before so as not to melt the PLA. I plan on going through an entire drill motor battery to try and get the bearings to run more freely as well as to test wear
I feel this exemplary description would receive more hits (since I >knew< it existed and had a heck of a time finding it again) if the title (and/or tags?) included the word "cycloid". Thanks again for such an excellent explanation.
Alireza Safdari Thank you! The mechanism is so ingenious, I was fascinated the first time I saw it (as an advertisement in some mechanical engineering magazine). It was a pleasure figuring it out and then animating it.
@petsatcom Thank you! I have seen commercial heavy duty versions in industrial exhibitions. construction and brand names may vary e.g. 'Cyclo®' from Sumitomo
Brilliant as always, a nice presentation! I guess commercial versions of this gear reducer are available? What are they called? Planetary versions have many gears?
They are all part of Mechanical Engineering's 'Design' stream. Within that group, they would come under 'Theory of Machines'. Theory of Machines is typically divided into Dynamics and Kinematics. Since the topics you mentioned start with just the motion (without considering the forces involved), they would be part of a 'Kinematics' course. Often it is labeled as Theory of Machines - 1.
Recycle Bin Rather than thinking of friction in isolation, you can find the efficiency figures of these drives from some commercial sites that sell them. This should be seen in light of the Velocity Ratio (VR) they provide. The same VR would take a lot of stages in conventional gearing and the efficiency figure may not be higher there.
The video just shows the principle and is far from being a design guide. There are lots of other details like the material, heat treatment, bearings, teeth profile, addenda and dedenda etc. not covered here. I would check the design codes or handbooks or better still, simply order from a vendor. Designing and cutting gears is a highly specialized area.
Best explanation of a Cicloidal engagement I've ever seen!
Thank you!
Excellent presentation.
Very pleasing manner of speech.
Thank you for your kind words!
This is the clearest explanation that I've come across yet. Thank you!
DeadlyDad Thanks :-) I had to find that explanation for myself. Ever since I saw this method of reducing speed, I wanted to figure how that worked and then one day this dawned on me!
Thank you for appreciating it!
Excellent. Showing in linear motion first, then rotary motion really makes it easier to understand. Thanks!
jrhirsch1 My pleasure! I still remember how impressed I was by this idea when i saw this first during my college days . . . Thanks for watching and writing back!
I’ll be breaking in the cycloidal drive I printed hopefully tomorrow. It has a 8 to 1 reduction. It will be lubricated before so as not to melt the PLA. I plan on going through an entire drill motor battery to try and get the bearings to run more freely as well as to test wear
I feel this exemplary description would receive more hits (since I >knew< it existed and had a heck of a time finding it again) if the title (and/or tags?) included the word "cycloid". Thanks again for such an excellent explanation.
Sorry I completely missed this message! Thank you for the tags suggestions. I'll check.
Take care and stay safe!
Best explanation!! Thanks
Thank you for the good word!
Thank you, I am speechless on how well you explained it. Awesome.....
Alireza Safdari Thank you! The mechanism is so ingenious, I was fascinated the first time I saw it (as an advertisement in some mechanical engineering magazine). It was a pleasure figuring it out and then animating it.
@petsatcom Thank you! I have seen commercial heavy duty versions in industrial exhibitions. construction and brand names may vary e.g. 'Cyclo®' from Sumitomo
Brilliant as always, a nice presentation! I guess commercial versions of this gear reducer are available? What are they called? Planetary versions have many gears?
Does cycloidal reducers can work with high input rpm? 30k for example?
During actual working, Is the inner gear also driving the outer gear by one tooth for one rotation of the inner gear?
Thanks for the amazing work of making this presentation..
wei48221 Thank you! This is an interesting mechanism. Hope you had as much fun as I had figuring it out.
by this vedio my concepts are crystal clear
Nice explanation, it really helped me to understand. Thank you very much.
Thomas Angenendt Glad to hear that! Thank you for watching and sending in the feedback.
Wish you the best,
- Ujjwal
That was cool man, well done!
farhan santo Thank you!
Excellent explication of the principle. Thank you!
Great explanation Well done
+Joe Cavaliere Thanks! It was a pleasure figuring this out and animating it. Glad you enjoyed that.
thanks a ton for this one.. awesomely explained :)
teju g Thanks :-)
Sir, can you help in the formulas for construction of this Cycloidal gearbox. Thanks.
The basic kinematics is covered here. If you are looking for design, some standards (like AGMA) might be handy.
@@UjjwalRane ok sir. Thank you
Which subject are these topics like cycloid gear and Hooke's joint and other mechanisms taught?
They are all part of Mechanical Engineering's 'Design' stream.
Within that group, they would come under 'Theory of Machines'.
Theory of Machines is typically divided into Dynamics and Kinematics.
Since the topics you mentioned start with just the motion (without considering the forces involved), they would be part of a 'Kinematics' course. Often it is labeled as Theory of Machines - 1.
Which book would you recommend for this subject?
wouldnt this create a lot of friction?
Recycle Bin Rather than thinking of friction in isolation, you can find the efficiency figures of these drives from some commercial sites that sell them. This should be seen in light of the Velocity Ratio (VR) they provide. The same VR would take a lot of stages in conventional gearing and the efficiency figure may not be higher there.
just amazing
+Ajay Guhan Thanks! :-)
Bikain...! Ez dit horrelakorik inoiz ikusi
clear explains ..
Is the ratio i=11
Yes, the velocity ratio of the two rotors are 1:11
Thanks for the answer. I need a 1:40 reduction. Can I build the cyclo Drive witch a normal CAD Program and do you have more Informations to do this?
The video just shows the principle and is far from being a design guide. There are lots of other details like the material, heat treatment, bearings, teeth profile, addenda and dedenda etc. not covered here.
I would check the design codes or handbooks or better still, simply order from a vendor. Designing and cutting gears is a highly specialized area.
cool!!!