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High torque antweight motors


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caffeine_addict



Joined: 03 Feb 2013
Posts: 14
Location: Beenleigh


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High torque antweight motors

Got a quick question, contemplating a hammer type ant-weight using the spring mechanism from a rat trap, but am still not 100% up on what's out there in the way of motors. Looking at making it a ratchet release system with a winch, is there a ant-weight size motor capable of actually handling that much force? Or do I need to look at scaling down the spring power a bit.

If I can get a starting point, I can always unwind the spring until the motor can handle it.

Got the system almost modeled in CAD, and I think I can make the weight work, so that (shouldn't) be an issue.

Post Sat Feb 16, 2013 10:42 am 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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You can find ones like this on ebay http://www.ebay.com.au/itm/298-1-Micro-Gearmotor-HP-/200888559414?pt=LH_DefaultDomain_0&hash=item2ec5e42736&_uhb=1#ht_500wt_962.

The other option is to use a high torque servo or potentially a bolt on one of the gearmotors to act as a worm gear.

Steve
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Post Sat Feb 16, 2013 12:19 pm 
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Jaemus
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Joined: 01 Apr 2009
Posts: 2674
Location: NSW


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Yeap like Marto suggests any micro gearmotor with a huge reduction ought to have all the torque you need. It's not so much a case of the motor having high torque, but the gearbox providing it through many stages of reduction. Beware shock loading tiny plastic gears etc tho.
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<bovril> it collects data about the surrounding environment, then discards it and drives into walls

Post Sat Feb 16, 2013 10:46 pm 
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