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Using a Steering Gear From a Car for Gear Reduction

Discussion in 'New users start here - FAQ' started by Ben V, May 24, 2015.

  1. Ben V

    Ben V Member

    Joined:
    May 4, 2015
    Messages:
    41
    Location:
    Alberta, Canada
    Balance:
    181Coins
    Ratings:
    +45 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Hello all,

    I'm currently in the process of doing some research and prototyping on building my first motion simulator (2DOF Seat Mover). I'm considering using a manual steering gear from a car for power transfer between the motor and seat frame.

    The steering gear struck me as a great way to get an inexpensive ball-screw assembly that is all assembled, ready to be bolted in, and designed for fairly high mechanical loads.

    I currently have a Superwinch LT2000 with a 12V PM DC motor that I'm using for testing purposes. I measured 3.5 Nm of output torque at stall, and a free speed of 4420 rpm from this motor.

    Specifications I've found for some manual steering gears have been in the range of 25:1 gear reduction. If I modify the pitman arm to get 50 mm center to center, I figure that will give me about 1750 N or 179 kg of output force at stall speed (ignoring mechanical losses through the steering gear).

    Any thoughts on the feasibility of this kind of setup?
    Ben V, May 24, 2015
    #1
  2. Ben V

    Ben V Member

    Joined:
    May 4, 2015
    Messages:
    41
    Location:
    Alberta, Canada
    Balance:
    181Coins
    Ratings:
    +45 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    I've decided to go ahead and try prototyping this approach to see how well it works. Check out my build thread here to follow along.
    Ben V, May 31, 2015
    #2