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electric screw jack

Discussion in 'Motor actuators and drivers' started by Gadget999, Nov 21, 2017.

  1. Gadget999

    Gadget999 Well-Known Member

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    has anyone looked at these

    might be possible to adapt the screw and motors

    https://www.ebay.co.uk/itm/2-Ton-12...674912&hash=item465db42594:g:q~sAAOSwax5YnDNQ


    this style is used to lift caravans


    Last edited: Nov 21, 2017
    Gadget999, Nov 21, 2017
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    noorbeast, Nov 21, 2017
    #2
  3. Gadget999

    Gadget999 Well-Known Member

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    ok - they are using the motors with a lever arm

    i was thinking more along the lines of removing the screws and attaching them directly to the motors for the basis of a linear actuator
    Gadget999, Nov 21, 2017
    #3
  4. mariano68

    mariano68 Active Member

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    If I understand correctly, it is too slow to be used that way. also the efficiency will be low.
    mariano68, Nov 21, 2017
    #4
  5. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    • Agree Agree x 1
    noorbeast, Nov 21, 2017
    #5
  6. MarkusB

    MarkusB Well-Known Member Gold Contributor

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    So you think of disassembling the scissor jack, take the screw for making a linear actuator, and throw away the scissor mechanics? (Just to make sure that I/we understand you correctly.)
    Last edited: Nov 21, 2017
    MarkusB, Nov 21, 2017
    #6
  7. mariano68

    mariano68 Active Member

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    Yes, The screw runs at only 70rpm over a really basic "nut".
    mariano68, Nov 21, 2017
    #7
  8. Gadget999

    Gadget999 Well-Known Member

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    Gadget999, Nov 23, 2017
    #8
  9. mariano68

    mariano68 Active Member

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    Sure, for the slowest actuator in the world...
    mariano68, Nov 24, 2017
    #9
  10. Gadget999

    Gadget999 Well-Known Member

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    i suspect the motor may not be suitable - it may need a gearbox or more power
    Gadget999, Nov 24, 2017
    #10