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  #1  
Old 09-04-2009, 03:38 PM
svejkovat
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Default Must the search for a manual clutch really this quixotic?

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Last edited by svejkovat; 09-05-2009 at 07:38 PM.
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  #2  
Old 09-04-2009, 03:51 PM
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Default Re: Must the search for a manual clutch really this quixotic?

I have a thread here about electric clutches.

I want a simple, lightweight clutch that can be disengaged electrically and reengaged by spring pressure to remove the need to retain the flywheel and clutch or to operate it without the pedal. The clutch only needs to be 'on/off' without having to hold any slip.

What you describe is the sort of thing I am looking for but with the capacity to handle car type torque.

I would imagine a simple cone clutch held on with spring pressure and released with a low load lever would be relatively easy to manufacture.
The release could be by means of a coarse helical thread. Rotating part of the clutch casing one way would disengage the clutch, rotating it back would allow the spring to apply holding pressure.
That would reduce the load on the release actuator.

I suppose some sort of motorbike clutch pack would work.
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Old 09-04-2009, 04:46 PM
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Default Re: Must the search for a manual clutch really this quixotic?

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Last edited by svejkovat; 09-05-2009 at 07:38 PM.
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Old 09-04-2009, 05:03 PM
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Default Re: Must the search for a manual clutch really this quixotic?

I've just been looking at motorbike clutches and the main problem I can see, for and EV clutch, is that both the the input and output are at the same end with a push rod through the centre of a hollow shaft.

Another alternative is the Laycock type overdrive cone clutch but that throws up another set of re machining difficulties. Too big for your needs maybe.

There are also these industrial cone clutch elements that work on air pressure.
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Old 09-04-2009, 05:19 PM
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Default Re: Must the search for a manual clutch really this quixotic?

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Last edited by svejkovat; 09-05-2009 at 07:39 PM.
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Old 09-04-2009, 05:32 PM
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Default Re: Must the search for a manual clutch really this quixotic?

Could we clarify which chain you want to declutch and why please?
A simple explanation of what you want to achieve might throw up some other design solutions.
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Old 09-04-2009, 11:25 PM
dreamer dreamer is offline
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Default Re: Must the search for a manual clutch really this quixotic?

Quote:
Originally Posted by svejkovat View Post
I just found the NORAM website that manufactures the mower clutch I just linked and in the specs it advertises "low amp draw". WTF


I don't see anything that would indicate a solenoid type clutch.


Someone has to come through for me here. I"m at my wits' end!
Do you need to be able to engage and disengage it, or will a one-way clutch work ?

http://www.vxb.com/page/bearings/PRO...arings/Kit8183
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