Identify gear and motor requirements given known working point
Identify gear and motor requirements given known working point
(OP)
Hi All,
I'm a software engineer trying to design a simple belt driven system. I've identified my working point requirements but I'd appreciate if someone can help figure out the following:
- How do I identify the requirements for my motor given the unknown gear setup?
- What's the maths to convert the output from the motor to the working point in order to establish the gear setup?
Thanks in advance,
Charles
I'm a software engineer trying to design a simple belt driven system. I've identified my working point requirements but I'd appreciate if someone can help figure out the following:
- How do I identify the requirements for my motor given the unknown gear setup?
- What's the maths to convert the output from the motor to the working point in order to establish the gear setup?
Thanks in advance,
Charles





RE: Identify gear and motor requirements given known working point
T = I*alpha where I is the moment of inertia relative to the axis of the rod. See http://hyperphysics.phy-astr.gsu.edu/hbase/mi.html for more information about such calculations.
RE: Identify gear and motor requirements given known working point
I worked out that given the total inertia and acceleration, my required torque is 2.75Nm.
Now, I could pick a motor that matches this requirement but considering my mechanism is belt driven, how can I use the ratio between the pulleys to assist in achieving these figures?
RE: Identify gear and motor requirements given known working point
This seems like an odd problem. No one needs a rod to accelerate without connection.
RE: Identify gear and motor requirements given known working point
Perhaps I should rephrase my question; Based on 2.75Nm of required force, how can I calculate the effect of different size pulleys on the torque and rpm's?
I'm not sure I understand your last point, where would you expect another connection? This is a simplified drawing.
Ps: I posted another question related to this project here which might contextualise this question.