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Torque wrench + multiplier + crows foot

  1. Jul 11, 2011 #1
    I've got a torque wrench attached to a multiplier that is attached to a crows foot, and I'm trying to spec the input torque (at the wrench head) that will give us a corresponding output torque (at the crows foot).

    I am aware of the calculations that need to be made when a crows foot (alone) is being used, but am struggling with the introduction of the multiplier.

    This is what I came up with:

    - Length of torque wrench is X
    - Length of crows foot is Y
    - Applied force is F

    The equation for the moment about the crows foot reduces to: F*(4X + Y)
    (please take a look at the attached pdf if you're interested in how I came up with this equation)

    Am I on the right track?

    Attached Files:

  2. jcsd
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