CrazyEngineers
CrazyEngineers
Howdy guest!
Dear guest, you must be logged-in to participate on CrazyEngineers. We would love to have you as a member of our community. Consider creating an account or login.
Replies

  • Capt Spark

    Member • Jul 8, 2011

    see the amount of the torque to be transferred. if it is not so high, key / spline may be fine.
    for high torque transfer, flange is better. It give a support at higher radius with higher shear allowable, and hence more torque capacity.
    Are you sure? This action cannot be undone.
    Cancel

  • Mr Zakaria

    Member • Jul 8, 2011

    The max estimated torque to be transferred is 64 Nm.
    The wheel has a diameter of 200 mm and width of 80 mm.
    I'm not sure whether this amount of torque can be considered as high or not.
    In terms of robustness, which fixation is easier to be done?
    Thanx
    Are you sure? This action cannot be undone.
    Cancel

  • Capt Spark

    Member • Jul 9, 2011

    Key is definitely a simple arrangement. And with this numbers, I think the calculation goes like this:
    F=64000N-mm/100mm=640N
    shear stress s = 640N/(80mm*5mm)=1.6 MPa (assuming 5 mm wide key) which should be OK.
    Plz check once if you find any loophole in the calculation
    Are you sure? This action cannot be undone.
    Cancel

  • saimriyaz

    Member • Jul 11, 2011

    I think coupling will be the best option.............................
    Are you sure? This action cannot be undone.
    Cancel

  • Capt Spark

    Member • Jul 11, 2011

    why so?
    flange coupling needs complex modification to the shafts and is obviously a costlier arrangements with bolts.
    Do you find any reason why it is better than the simple key mechanism?
    Are you sure? This action cannot be undone.
    Cancel

  • saimriyaz

    Member • Jul 11, 2011

    It is because coupling like of universal joint let your wheel move in any direction................you can adjust motor location, can transfer high amount of torque .
    Yet they are costly but they provide variety of operation.
    Are you sure? This action cannot be undone.
    Cancel

  • saimriyaz

    Member • Jul 11, 2011

    [video=youtube;cfg8jb6CWq0]https://www.youtube.com/watch?v=cfg8jb6CWq0[/video]



    check this out.....................
    Are you sure? This action cannot be undone.
    Cancel

  • Capt Spark

    Member • Jul 13, 2011

    true.. I agree completely.
    If there is any chance of even a little misalignment, a flex coupling is a must
    Are you sure? This action cannot be undone.
    Cancel
Home Channels Search Login Register