Coupling

Discussion in 'Boat Design' started by shipdesigner, Feb 20, 2008.

  1. Frosty

    Frosty Previous Member

    The allignment ring is the bit machined in the flange to allign with its mating flange for CENTRALIZATION. vertical horizontal and lateral are adjustable ,--look it up.
     
  2. lazeyjack

    lazeyjack Guest

    I KNOW THAT YOU DIP, BUT THE MATING FACES MUST KISS, NOT be forced I dont fuckin need to look it up

    I am an engineer with 40 years hand s on, look that up
     
  3. shipdesigner
    Joined: Feb 2008
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    Location: AE

    shipdesigner Junior Member

    Modified the coupling again and the locking nut will have the ff:

    - 74mm outer dia
    - 80mm deep
    - 1-3/4" thread at 8 TPI
    - 4 off 7mm dia hole with 55mm dia PCD for spanner

    Coupling flange will be attached directly to gearbox flange.

    Below is the image of coupling I have come up so far. Thanks for your inputs.
     

    Attached Files:

  4. jehardiman
    Joined: Aug 2004
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    jehardiman Senior Member

    Again, don't dimension both ends of a taper! All this does is screw up your tolerancing and fit as well as making your machinist hate you.. If you are really, really, concerned about where the face of the coupling ends up relative to the shaft, dimension the middle of the taper diameter for both the shaft and socket and call out the same taper for both.
     
    Last edited: Feb 27, 2008
  5. Frosty

    Frosty Previous Member

    I dont think we were disgussing that, that is normal when mating two flanges , I think we all know that you dont force it together but Im sure he will be pleased with your input.

    Its all yours ,--you tell him how to do it Lazy,---your the man.

    Why are you so angry today ,, didnt manage to get into a fight in the pub last night?
     
  6. CDK
    Joined: Aug 2007
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    Location: Adriatic sea

    CDK retired engineer

    Shipdesigner: The answer to your doubts about the overall size is don't worry, it is large enough to handle the torque. With 12 M16 bolts the coupling can handle much more than 3000 Nm.
    Jehardiman: The drawing is only intended for calculations. It is not uncommon to specify only dimensions in that case. The real drawing for the machine shop order should of course show angles (in Europe) or ratio. Plus of course tolerance and surface finish. Success or failure for this construction depends on the quality of the taper, both on the shaft and the coupling, but if you like challenges, why not....
     

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