Does anyone know of a standard coupling which allows a rotating shaft, after halting, to disengage ( one side is retracted w/ linear actuator
You are describing the standard behaviour of a multi-spindle CNC-controlled lathe, with two headstocks, each headstock with pneumatically-controlled chucks.
Put £100,000 in envelope A and one could be yours.
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Gee, that sounds easy enough. I hope they offer a lay-away plan.
I can see it now, my old juke box platter going up and down , then it ingages and starts spinning.
The question is, how much torque is needed.
greg
--Made something like this many moons ago. The secret to alignment is to make a 'ball and-multiple-socket' arrangement so that misalignments slide down the slope of contact of mating male and female hemispheres until they're tight at the bottom. Does that make sense?
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I don't have the calculations but it's a 35 lb cart, 4 wheel drive w/
4" dia wheels at 0.75 ft/sec on max. 6% slope. 2 rear wheels drive for 12" while 2 front wheels disengage ( temp , non-driven supports decend ) to move past objects , then re-engage with 4 wheel drive for norm running.
--Yeah, you've got it. Works better if you can keep the parts on a common shaft to increase alignment potential. Did this when the company I worked for at the time made a thingy to turn a multiple-start thread on a part.
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