GGs Chain Flail Impact Mill - Page 10
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  1. #136
    us
    May 2009
    Sailor Flat, Ca.
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    Quote Originally Posted by rockbar View Post
    That's an interesting comment there Goldwasher. I would think that when a piece of ore is struck by a hammer, it actually de-weights that hammer momentarily before that hammer springs back to travel in its arc. That whole process surely creates vibration, but with multiple hammers contacting ore within a fraction of a second of each other, the whole system sort of balances itself out... whereas a significant imbalance in hammer weights throws the whole system out of balance.
    That's my take on it, anyway. Any physicists out there?
    Good point

    I guess what I was getting at is that no matter how balanced when idle..

    Once its being used it is constantly in a state of imbalance.


    I just don't think "perfect" balance is needed

    I bet one hammer wears more than the other as well

  2. #137
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Arizona
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    Quote Originally Posted by elgatodelnoche View Post
    Why a circular shaped drum instead of a hexagonal shaped one? In my small mind, it seems the hex one would give more strikes. I cannot supply a reason, it just seems that way to me. I was also thinking if round shapes are better, then maybe an old brake drum could be used.
    Quote Originally Posted by hvacker View Post
    Looking at your builds and was wondering if a large brake drum would work for the housing.
    Quote Originally Posted by DynoGuy View Post
    I wouldn't use a brake drum as those are usually made of cast iron and could shatter easily.

    I need to make another pulverizer since I sold this one.

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    Now that I live in an RV and have limited tools it looks like I am going to have to try the brake drum idea even though there could be a chance of it shattering
    Going to try it and see what happens.

    I'll post photos of the build once I scavenge enough materials from scrap yards. It wont be pretty, but hopefully will be good enough for some light duty sampling.

    Planning on not spending over $100 total.

    Parts acquired so far....

    Electric motor $10 - yard sale
    Square tube $1 - Bulldog Recycling
    Brake Drum $3 -Bulldog Recycling
    Steel plates $2 ea. - Bulldog Recycling
    angle Iron $1 - Bulldog Recycling
    Steel Shaft $1 - Bulldog Recycling
    Ordered 2 bearings $6.50 ea. - ebay

    All I need now is nuts, bolts, chain, fuel line for gasket around front of drum, hinge for ore chute lid, V belt for drive, and a shaft pulley.
    Then I'll build a platform to mount the unit onto.
    Click image for larger version. 

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    Semi truck brake drum was just too big for this project
    Maybe next time


    GG~
    Last edited by Goodyguy; Jan 13, 2020 at 09:10 PM.
    russau likes this.

 

 
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