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Washing Machine Motor Project

  • 13-09-2017 2:29pm
    #1
    Scruffy Elbow
    Registered Users, Registered Users 2 Posts: 1 ✭


    Hi guys, I have a couple of washing machine motors that I'm hoping to use for a little side project. Looking for help on the best way to attach a smallish wheel (wheelbarrow size) to each motor shaft.
    Tagged:


Comments

  • #2
    antiskeptic
    Registered Users, Registered Users 2 Posts: 9,555 ✭✭✭antiskeptic


    Scruffy Elbow wrote: »
    Hi guys, I have a couple of washing machine motors that I'm hoping to use for a little side project. Looking for help on the best way to attach a smallish wheel (wheelbarrow size) to each motor shaft.

    edit: I'm assuming that you plan on running these motors with the wheels on



    Smallish! Compared to the original drive diameter, that's pretty big

    I'm guessing that a washing machine motor runs at very high speed. For example: with a 1500rpm drum spin speed and a gear ratio of let's say 20:1 between motor and drum, the motor speed would be 30000rpm.

    You're not going to home-attach anything to that that's going to last/be safe - you're heading towards engine turbo tolerances if you wanted to avoid the thing shaking itself to bits.

    https://www.youtube.com/watch?v=_J7m7Y1evgQ


    To have any chance, the wheel would need it's centre hole turned out on a lathe to give a slight interference fit (i.e. you'd have to press/tap the wheel onto the shaft). Then some loctite/tec7 or the like to stick it well into position.

    It's not likely that an existing wheel could be mounted perfectly centre on a lathe in order to bore this hole, meaning that any out of trueness existing afterward will be magnified once the wheel is mounted on the (much faster) motor

    Have you got a speed control on the motor to pull it's speed down to more manageable levels? Is the wheel lightweight?


  • #3
    gutteruu
    Registered Users, Registered Users 2 Posts: 1,064 ✭✭✭gutteruu


    Unless you can vary to speed to reduce it listen to what antiskeptic said. 30k rpm will send a wheel flying like bullets. It would be deadly


  • #4
    CJhaughey
    Registered Users, Registered Users 2 Posts: 14,679 ✭✭✭✭CJhaughey


    I'm guessing that if wheels are mounted that the motor will be mobile and not using 220v power, in this case it probably won't be revving at 30k rpm but probably much lower speeds.
    Regardless it will be hard to direct drive a wheel from the motor a belt drive would be much more preferable toothed belt better again.


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