The link to the thread where we calculated the maximum balancing torque of 8.35 lb*ft is here. The motor torque is 7.8 lb*ft at 2 rpm. When geared down at a 1:2 ratio, the output torque is 15.6 lb*ft at 1 rpm.
Also, the supports and support plates are removable so the consumer can easily store...
Yesterday, I made a thread about creating gears in Inventor. I successfully created them, but now I have a few questions regarding material strength.
Background:
I am making an autonomously rotating compost tumbler for an engineering class. The design consists of a drum surrounding an axle...
Actually, I just figured that problem out. Inventor can calculate everything for you based off of the center distance and gear ratio, I just needed to change the mode.
I am working on a school project where a motor needs to turn a drum. The motor is mounted to one side of the drum.
The motor is much smaller than the one in the picture, and won't be able to attach directly to the axle. Currently, I am thinking that I attach a pinion to the end of the motor...
Thank you! So with 41.75 pounds of weight and .2 feet, the balancing torque will be 8.35 lb*ft. That is much less than I previously calculated and makes identifying a motor much easier. I suppose that instead of applying a torque to slow it down, we could consider having the motor turn it once...
I apologize if I'm being dense, but wouldn't calculating the distance the CG will be moved be calculating the work and not the torque? I'm probably just not understanding something about work/torque though.
Anyway, the CG when half full is exactly .2 feet away from the axle, so it will move .4...
We have ridges on the inside of the drum (think like in a dryer) to turn over the compost and preventing it from getting stuck on one side. However, I suppose I would still need to calculate the torque needed at this point anyway. How would I go about doing that? If I multiply the weight (1/2 of...
Thanks for the help! By the way, I forgot to mention that we created an Arduino circuit that puts the motor on a timer so we have it rotating for a few minutes a day as opposed to thousands of times a day. This is also because we will have a solar panel charging a battery that powers the motor...
I had posted a thread several months ago about a similar problem on the same project, but the parameters have changed and my question has slightly as well.
Background:
For a high school engineering class, each group must design and create a prototype of a solution to an environmental related...
I was wondering how a freewheel would attach to the motor. Would it attach to the gearbox or the axle itself? I really appreciate the suggestion by the way, we will likely be using it.
Thanks everyone for all of the help, I really appreciate it! The one problem with it turning extremely slowly however, is that the door/hatch to deposit material into may be stuck in a down position when the user wants to use it. They would then have to rotate it themselves anyway, defeating the...
Also, although using a very low amount of power has been suggested several times, wouldn't I need to use a substantial base amount of power to overcome the friction between the drum and the axle? I suppose we could use bearings to decrease the friction, but there would still be a substantial...
We were originally planning on using a solar panel to power it, but we weren't sure whether it would produce enough power. It appears though that it would be fine in that regard. The main concern I would have with it now is that we are supposed to develop a solution that would be viable on the...
We were planning on adding ridges, similar to those found in a dryer, so that the organic material wouldn't simply slide and stay at the bottom of the drum while turning. Is that what you mean, or am I talking about something else entirely? Also, does the freewheel mean that the user can simply...