Robotics Education & Competition Foundation
Inspiring students, one robot at a time.

Talking the Torque


Entry ID #: 3508
Created: Tue, Jan 10, 2017 10:48 PM

We have designed a Continuously Variable Transmittor unit that can alternate between a 1:4 and 4:1 gear ratio, with every possible ratio in between. This unit means we can achieve a maximum torque ratio, but allows us to smoothly and quickly change to a high speed ratio, without the need for extra motors. 

Links / Videos

A brief video explaining how our unit works


   Engineeringfreaks on 01/26/2017

I love this concept and the fact that you can change between ratios smoothly without the risk many gear transmissions have. While I overall admire this entry, I'm still scratching my head whether how would the change in gear ratios would work in real life. Considering that belts usually have a lot of traction to get a grip on the "pulley", I'm not sure if closing the pulley would make the belt expand as demonstrated in the video. Lighten me up.