fulcrum gear assembly

[zeb]

Attempting to understand a fulcrum gear operation in the application of a patent. For two different sized meshed gears in-line where is the "fulcrum point"? Where the two gears mesh? If I have a drive gear (G1) that is internal to and meshed with a larger internal toothed driven gear (G2), where is the "fulcrum point" located? If I have a third gear (G3) that is meshed with teeth external to G2, G2 has teeth both interior and exterior to the gear ring, where is the fulcrum point of this three-gear combination? With G3 as the driven gear, how do I determine the forces on G3?

 

[ecampos]

I think that your explanation is inadequate.&nbsp;&nbsp;You cannot mesh two internal gears.&nbsp;&nbsp;The &quot;Fulcrum&quot; that you refer to is probably the 'Pitch Diameter' of the gears, that is where they mesh tooth to tooth.&nbsp;&nbsp;As for calculating forces, take each pair seperatly and solve for each ones forces, then move on to the next pair knowing one of the gears forces from the previous pair.<br>Send me a drawing or sketch on email if you need more help.<br> <p>Edson Campos<br><a href=mailto:edsoncampos@earthlink.net>edsoncampos@earthlink.net</a><br><a href= > </a><br>

 

[WebGearServices]

I believe that your design is referring to a planetary gear system with a sun driving a double level planet which in turn drives 2 internal gears.<br><br>Our company produces Excel based design software which can be used to calculate the resulting forces in your mesh.&nbsp;&nbsp;Alternatively, our company can supply you with consulting time to work out the issue.<br><br>Web Gear Services<br><br><br>email:&nbsp;&nbsp;<A HREF="mailto:webgear@home.com">webgear@home.com</A><br><br>website:&nbsp;&nbsp;<A HREF="

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