Mar19-13, 10:33 AM
I'm trying to design a windup baby toy (think toy stuck on wall rotating) with a gearing mechanism that works similar to a pull back toy car. Essentially I want to do a three quarter turn of the front of the unit anticlockwise to wind a coil spring via a gear train. When the front of the unit is released/let go, I want the first 'winding' gear to disengage via floating gears and gravity and engage the secondary gear train which causes the front of the unit to spin round as many times as possible. The aim is for around two minutes of slow turning.
I can't fathom the correct position of the moving gears to engage/disengage correctly without locking up. Has anybody experience in this, I would really appreciate it. Prototyping is VERY expensive so I need to figure this out correctly. Even if it's just a point in the right direction.
If you know of any decent reference material on the web I could use for guidance that would be awesome as I can't find anything. I'm not just expecting somebody to do all the hard work for me - although feel free! :)
I'm designing it in Solidworks
|Register to reply|
|Using Hooke's law to find the pull back distance?||Introductory Physics Homework||1|
|Pull-back of vectors at a SINGLE point||Differential Geometry||4|
|Gear mechanism and wheel arrangement for reduction of fuel consumption||Mechanical Engineering||1|
|Pull Back on Manifolds||Advanced Physics Homework||0|
|Physical Explanation of a Pull-Back Car||Introductory Physics Homework||3|