Gate turner

Discussion in 'The Projects Forum' started by Pjmedrano, Sep 27, 2013.

  1. Pjmedrano

    Thread Starter New Member

    Jun 30, 2013
    8
    1
    HI guys... i need some "HELP" about this project, as u can see in the pictures attached, im having trouble in turning the pipe inside when the solenoid lock opens. in the pictures there is no solenoid lock that has been attach yet.. what i want is to turn the pipe whenever the solenoid lock opens or released...

    Can you give me some ideas how?



    Thank You.^_^
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,156
    3,063
    Is this a turnstile, where the human passing thru provides the power to turn the rungs?
     
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  3. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    I read it as a standard auto turnstile, that cannot turn until "the solenoid lock opens".

    What it needs is a "cam" disc, with 3 detents (slots). A spring forces the solenoid plunger to press into any slot and lock it. When the solenoid is powered, it pulls back the plunger and the disc can turn.

    You might also want to put a sprung ratchet arm on the disc, so it can only turn one way? Or will it turn both ways to let people in and out?
     
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  4. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,571
    2,381
    Do you want this to prevalently be purely mechanical or mech/electrical combo?
    Max.
     
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  5. Pjmedrano

    Thread Starter New Member

    Jun 30, 2013
    8
    1
    hello sir RB. thank you so much for the idea, although i find it hard to imagine where should i place the cam or disc. is it in the turnstile? or in the pipe?
     
  6. Pjmedrano

    Thread Starter New Member

    Jun 30, 2013
    8
    1
    hello sir Max.. yes what i want is both... mech/electrical combo.

    thank you.. ^^
     
  7. Metalmann

    Active Member

    Dec 8, 2012
    700
    223




    Your project uses some pretty heavy duty pillow block bearings, what is the shaft diameter?
     
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  8. Pjmedrano

    Thread Starter New Member

    Jun 30, 2013
    8
    1
    hello sir metalman.. the diameter of the shaft is approximately 1". ^^
     
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  9. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    For strength and reliability, the cam disc should be large in diameter (like > 100mm).

    Leverage forces on the cam would be the force the person can make on the turnstile "arm", multiplied by this formula;
    cam force = (arm force * arm diameter) / cam diameter
    so you can see the cam disc needs to be large, and strong.

    A normal place to put the cam disc would be on the far end of the shaft, inside the main turnstile box.
     
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