|CCHS Technology Integration||
Naomi Yaddof, Charles City High School Technology Integrationist
To fix the issues we had in the gearbox at the first few competitions we considered using sprockets and chains to run the entire gearbox, but we realized that we would have to make the gearbox much larger to achieve the same gear ratio, so we threw this out. We ended up keeping the same design for the gearbox, with a few minor changes to eliminate potential problems. Another major mechanical failure that happened was the final gear slipping. Because the 5/16" axle did not have collars on it to keep the gears in the correct place, the gear went to the side after torque was applied over time. We were not able to fix this problem during that competition, because the gear was completely destroyed, but we were able to replace the gear and make a collar to fit the axle to keep the gears in place. Since applying this collar we have not destroyed these gears, so it seems to be working, but we made the collar the wrong size, so tape is placed on top of the axle to make the collar clamp correctly.